Software / API Bindings / Python / API Reference and Examples / Bricks / RED Brick

Python - RED Brick¶

This is the description of the Python API bindings for the RED Brick. General information and technical specifications for the RED Brick are summarized in its hardware description.

An installation guide for the Python API bindings is part of their general description.

Examples¶

The example code below is Public Domain (CC0 1.0).

Start Program¶

Download (example_start_program.py)

#!/usr/bin/env python
# -*- coding: utf-8 -*-

HOST = 'localhost'
PORT = 4223
UID = '3dfEZD' # Change to your UID
PROGRAM = 'test' # Change to your program identifier

from tinkerforge.ip_connection import IPConnection
from tinkerforge.brick_red import RED

def check_error(error_code, *args):
    if error_code != 0:
        print('RED Brick error occurred: {0}'.format(error_code))
        exit(1)

    if len(args) == 1:
        return args[0]

    return args

def start_program(red, identifier):
    # Create session and get program list
    session_id = check_error(*red.create_session(10))
    program_list_id = check_error(*red.get_programs(session_id))

    # Iterate program list to find the one to start
    started = False

    for i in range(check_error(*red.get_list_length(program_list_id))):
        program_id, _ = check_error(*red.get_list_item(program_list_id, i, session_id))

        # Get program identifier string
        string_id = check_error(*red.get_program_identifier(program_id, session_id))
        string_length = check_error(*red.get_string_length(string_id))
        string_data = ''

        while len(string_data) < string_length:
            string_data += check_error(*red.get_string_chunk(string_id, len(string_data)))

        check_error(red.release_object(string_id, session_id))

        # Check if this is the program to be started
        if string_data.decode('utf-8') == identifier:
            check_error(red.start_program(program_id))
            started = True

        check_error(red.release_object(program_id, session_id))

        if started:
            break

    check_error(red.release_object(program_list_id, session_id))
    check_error(red.expire_session(session_id))

    return started

if __name__ == '__main__':
    ipcon = IPConnection() # Create IP connection
    red = RED(UID, ipcon) # Create device object

    ipcon.connect(HOST, PORT) # Connect to brickd
    # Don't use device before ipcon is connected

    if start_program(red, PROGRAM):
        print('Started RED Brick program: {0}'.format(PROGRAM))
    else:
        print('RED Brick program not found: {0}'.format(PROGRAM))

    raw_input('Press key to exit\n') # Use input() in Python 3
    ipcon.disconnect()

API¶

Generally, every method of the Python bindings can throw an tinkerforge.ip_connection.Error exception that has a value and a description property. value can have different values:

Error.TIMEOUT = -1
Error.ALREADY_CONNECTED = -7
Error.NOT_CONNECTED = -8
Error.INVALID_PARAMETER = -9
Error.NOT_SUPPORTED = -10
Error.UNKNOWN_ERROR_CODE = -11
Error.STREAM_OUT_OF_SYNC = -12

All methods listed below are thread-safe.

Note

The API documentation for the RED Brick is currently incomplete.

The RED Brick API is meant to be used by the Brick Viewer to implement the offered functionality (getting status information, managing programs etc.). Normal users will not need to use this API, it may only be interesting for power users.

FIXME: explain sessions

The RED Brick API operates on reference counted objects (strings, lists, files, directories, processes and programs) that are identified by their 16bit object ID. Functions that allocate or return an object ID (e.g. allocate_string() and get_next_directory_entry()) increase the reference count of the returned object. If the object is no longer needed then release_object() has to be called to decrease the reference count of the object again. In contrast to allocation and getter functions, the reference count for an object returned by a callback is not increased and release_object() must not be called for such an object in response to a callback.

There are functions (e.g. get_file_info()) that only return valid objects under certain conditions. This conditions are documented for the specific functions. For invalid objects release_object() must not be called.

There are also function (e.g. set_program_stdio_redirection()) that have conditionally unused object parameters. Under which conditions an object parameter is unused is documented for the specific functions. For unused object parameters 0 has to be passed as object ID.

The RED Brick API is more complex then the typical Brick API and requires more elaborate error reporting than the TCP/IP protocol can provide with its 2bit error code. Therefore, almost all functions of the RED Brick API return an 8bit error code. Possible error codes are:

Success = 0
UnknownError = 1
InvalidOperation = 2
OperationAborted = 3
InternalError = 4
UnknownSessionID = 5
NoFreeSessionID = 6
UnknownObjectID = 7
NoFreeObjectID = 8
ObjectIsLocked = 9
NoMoreData = 10
WrongListItemType = 11
ProgramIsPurged = 12
InvalidParameter = 128 (EINVAL)
NoFreeMemory = 129 (ENOMEM)
NoFreeSpace = 130 (ENOSPC)
AccessDenied = 131 (EACCES)
AlreadyExists = 132 (EEXIST)
DoesNotExist = 133 (ENOENT)
Interrupted = 134 (EINTR)
IsDirectory = 135 (EISDIR)
NotADirectory = 136 (ENOTDIR)
WouldBlock = 137 (EWOULDBLOCK)
Overflow = 138 (EOVERFLOW)
BadFileDescriptor = 139 (EBADF)
OutOfRange = 140 (ERANGE)
NameTooLong = 141 (ENAMETOOLONG)
InvalidSeek = 142 (ESPIPE)
NotSupported = 143 (ENOTSUP)
TooManyOpenFiles = 144 (EMFILE)

If a function returns an error code other than Success then its other return values (if any) are invalid and must not be used.

The error code InvalidOperation is returned if the requested operation cannot be performed because the current state of the object does not allow it. For example, trying to append an item to a full list object or trying to undefine an already undefined program.

The error code NotSupported is returned if the requested operation can never be performed. For example, trying to append a list object to itself, trying to get the name of a file object with type Pipe or trying to create a directory non-recursively with more than the last part of the directory name referring to non-existing directories.

String objects store UTF-8 encoded data.

Advanced Functions¶

BrickRED.create_session(lifetime)¶

Parameters:	lifetime -- int
Return type:	(int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and session_id.

BrickRED.expire_session(session_id)¶

Parameters:	session_id -- int
Return type:	int

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.expire_session_unchecked(session_id)¶

Parameters:	session_id -- int
Return type:	None

BrickRED.keep_session_alive(session_id, lifetime)¶

Parameters:	session_id -- int lifetime -- int
Return type:	int

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.release_object(object_id, session_id)¶

Parameters:	object_id -- int session_id -- int
Return type:	int

Decreases the reference count of an object by one and returns the resulting error code. If the reference count reaches zero the object gets destroyed.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.release_object_unchecked(object_id, session_id)¶

Parameters:	object_id -- int session_id -- int
Return type:	None

BrickRED.allocate_string(length_to_reserve, buffer, session_id)¶

Parameters:	length_to_reserve -- int buffer -- str session_id -- int
Return type:	(int, int)

Allocates a new string object, reserves length_to_reserve bytes memory for it and sets up to the first 60 bytes. Set length_to_reserve to the length of the string that should be stored in the string object.

Returns the object ID of the new string object and the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and string_id.

BrickRED.truncate_string(string_id, length)¶

Parameters:	string_id -- int length -- int
Return type:	int

Truncates a string object to length bytes and returns the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_string_length(string_id)¶

Parameters:	string_id -- int
Return type:	(int, int)

Returns the length of a string object in bytes and the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and length.

BrickRED.set_string_chunk(string_id, offset, buffer)¶

Parameters:	string_id -- int offset -- int buffer -- str
Return type:	int

Sets a chunk of up to 58 bytes in a string object beginning at offset.

Returns the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_string_chunk(string_id, offset)¶

Parameters:	string_id -- int offset -- int
Return type:	(int, str)

Returns a chunk up to 63 bytes from a string object beginning at offset and returns the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and buffer.

BrickRED.allocate_list(length_to_reserve, session_id)¶

Parameters:	length_to_reserve -- int session_id -- int
Return type:	(int, int)

Allocates a new list object and reserves memory for length_to_reserve items. Set length_to_reserve to the number of items that should be stored in the list object.

Returns the object ID of the new list object and the resulting error code.

When a list object gets destroyed then the reference count of each object in the list object is decreased by one.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and list_id.

BrickRED.get_list_length(list_id)¶

Parameters:	list_id -- int
Return type:	(int, int)

Returns the length of a list object in items and the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and length.

BrickRED.get_list_item(list_id, index, session_id)¶

Parameters:	list_id -- int index -- int session_id -- int
Return type:	(int, int, int)

Returns the object ID and type of the object stored at index in a list object and returns the resulting error code.

Possible object types are:

String = 0
List = 1
File = 2
Directory = 3
Process = 4
Program = 5

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144
BrickRED.OBJECT_TYPE_STRING = 0
BrickRED.OBJECT_TYPE_LIST = 1
BrickRED.OBJECT_TYPE_FILE = 2
BrickRED.OBJECT_TYPE_DIRECTORY = 3
BrickRED.OBJECT_TYPE_PROCESS = 4
BrickRED.OBJECT_TYPE_PROGRAM = 5

The returned namedtuple has the variables error_code, item_object_id and type.

BrickRED.append_to_list(list_id, item_object_id)¶

Parameters:	list_id -- int item_object_id -- int
Return type:	int

Appends an object to a list object and increases the reference count of the appended object by one.

Returns the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.remove_from_list(list_id, index)¶

Parameters:	list_id -- int index -- int
Return type:	int

Removes the object stored at index from a list object and decreases the reference count of the removed object by one.

Returns the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.open_file(name_string_id, flags, permissions, uid, gid, session_id)¶

Parameters:	name_string_id -- int flags -- int permissions -- int uid -- int gid -- int session_id -- int
Return type:	(int, int)

Opens an existing file or creates a new file and allocates a new file object for it.

FIXME: name has to be absolute

The reference count of the name string object is increased by one. When the file object gets destroyed then the reference count of the name string object is decreased by one. Also the name string object is locked and cannot be modified while the file object holds a reference to it.

The flags parameter takes a ORed combination of the following possible file flags (in hexadecimal notation):

ReadOnly = 0x0001 (O_RDONLY)
WriteOnly = 0x0002 (O_WRONLY)
ReadWrite = 0x0004 (O_RDWR)
Append = 0x0008 (O_APPEND)
Create = 0x0010 (O_CREAT)
Exclusive = 0x0020 (O_EXCL)
NonBlocking = 0x0040 (O_NONBLOCK)
Truncate = 0x0080 (O_TRUNC)
Temporary = 0x0100
Replace = 0x0200

FIXME: explain Temporary and Replace flag

The permissions parameter takes a ORed combination of the following possible file permissions (in octal notation) that match the common UNIX permission bits:

UserRead = 00400
UserWrite = 00200
UserExecute = 00100
GroupRead = 00040
GroupWrite = 00020
GroupExecute = 00010
OthersRead = 00004
OthersWrite = 00002
OthersExecute = 00001

Returns the object ID of the new file object and the resulting error code.

The following constants are available for this function:

BrickRED.FILE_FLAG_READ_ONLY = 1
BrickRED.FILE_FLAG_WRITE_ONLY = 2
BrickRED.FILE_FLAG_READ_WRITE = 4
BrickRED.FILE_FLAG_APPEND = 8
BrickRED.FILE_FLAG_CREATE = 16
BrickRED.FILE_FLAG_EXCLUSIVE = 32
BrickRED.FILE_FLAG_NON_BLOCKING = 64
BrickRED.FILE_FLAG_TRUNCATE = 128
BrickRED.FILE_FLAG_TEMPORARY = 256
BrickRED.FILE_FLAG_REPLACE = 512
BrickRED.FILE_PERMISSION_USER_ALL = 448
BrickRED.FILE_PERMISSION_USER_READ = 256
BrickRED.FILE_PERMISSION_USER_WRITE = 128
BrickRED.FILE_PERMISSION_USER_EXECUTE = 64
BrickRED.FILE_PERMISSION_GROUP_ALL = 56
BrickRED.FILE_PERMISSION_GROUP_READ = 32
BrickRED.FILE_PERMISSION_GROUP_WRITE = 16
BrickRED.FILE_PERMISSION_GROUP_EXECUTE = 8
BrickRED.FILE_PERMISSION_OTHERS_ALL = 7
BrickRED.FILE_PERMISSION_OTHERS_READ = 4
BrickRED.FILE_PERMISSION_OTHERS_WRITE = 2
BrickRED.FILE_PERMISSION_OTHERS_EXECUTE = 1
BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and file_id.

BrickRED.create_pipe(flags, length, session_id)¶

Parameters:	flags -- int length -- int session_id -- int
Return type:	(int, int)

Creates a new pipe and allocates a new file object for it.

The flags parameter takes a ORed combination of the following possible pipe flags (in hexadecimal notation):

NonBlockingRead = 0x0001
NonBlockingWrite = 0x0002

The length of the pipe buffer can be specified with the length parameter in bytes. If length is set to zero, then the default pipe buffer length is used.

Returns the object ID of the new file object and the resulting error code.

The following constants are available for this function:

BrickRED.PIPE_FLAG_NON_BLOCKING_READ = 1
BrickRED.PIPE_FLAG_NON_BLOCKING_WRITE = 2
BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and file_id.

BrickRED.get_file_info(file_id, session_id)¶

Parameters:	file_id -- int session_id -- int
Return type:	(int, int, int, int, int, int, int, int, int, int, int)

Returns various information about a file and the resulting error code.

Possible file types are:

Unknown = 0
Regular = 1
Directory = 2
Character = 3
Block = 4
FIFO = 5
Symlink = 6
Socket = 7
Pipe = 8

If the file type is Pipe then the returned name string object is invalid, because a pipe has no name. Otherwise the returned name string object was used to open or create the file object, as passed to open_file().

The returned flags were used to open or create the file object, as passed to open_file() or create_pipe(). See the respective function for a list of possible file and pipe flags.

FIXME: everything except flags and length is invalid if file type is Pipe

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144
BrickRED.FILE_TYPE_UNKNOWN = 0
BrickRED.FILE_TYPE_REGULAR = 1
BrickRED.FILE_TYPE_DIRECTORY = 2
BrickRED.FILE_TYPE_CHARACTER = 3
BrickRED.FILE_TYPE_BLOCK = 4
BrickRED.FILE_TYPE_FIFO = 5
BrickRED.FILE_TYPE_SYMLINK = 6
BrickRED.FILE_TYPE_SOCKET = 7
BrickRED.FILE_TYPE_PIPE = 8
BrickRED.FILE_PERMISSION_USER_ALL = 448
BrickRED.FILE_PERMISSION_USER_READ = 256
BrickRED.FILE_PERMISSION_USER_WRITE = 128
BrickRED.FILE_PERMISSION_USER_EXECUTE = 64
BrickRED.FILE_PERMISSION_GROUP_ALL = 56
BrickRED.FILE_PERMISSION_GROUP_READ = 32
BrickRED.FILE_PERMISSION_GROUP_WRITE = 16
BrickRED.FILE_PERMISSION_GROUP_EXECUTE = 8
BrickRED.FILE_PERMISSION_OTHERS_ALL = 7
BrickRED.FILE_PERMISSION_OTHERS_READ = 4
BrickRED.FILE_PERMISSION_OTHERS_WRITE = 2
BrickRED.FILE_PERMISSION_OTHERS_EXECUTE = 1

The returned namedtuple has the variables error_code, type, name_string_id, flags, permissions, uid, gid, length, access_timestamp, modification_timestamp and status_change_timestamp.

BrickRED.read_file(file_id, length_to_read)¶

Parameters:	file_id -- int length_to_read -- int
Return type:	(int, [int, int, ..59x.., int], int)

Reads up to 62 bytes from a file object.

Returns the bytes read, the actual number of bytes read and the resulting error code.

If there is not data to be read, either because the file position reached end-of-file or because there is not data in the pipe, then zero bytes are returned.

If the file object was created by open_file() without the NonBlocking flag or by create_pipe() without the NonBlockingRead flag then the error code NotSupported is returned.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code, buffer and length_read.

BrickRED.read_file_async(file_id, length_to_read)¶

Parameters:	file_id -- int length_to_read -- int
Return type:	None

Reads up to 2⁶³ - 1 bytes from a file object asynchronously.

Reports the bytes read (in 60 byte chunks), the actual number of bytes read and the resulting error code via the CALLBACK_ASYNC_FILE_READ callback.

If there is not data to be read, either because the file position reached end-of-file or because there is not data in the pipe, then zero bytes are reported.

If the file object was created by open_file() without the NonBlocking flag or by create_pipe() without the NonBlockingRead flag then the error code NotSupported is reported via the CALLBACK_ASYNC_FILE_READ callback.

BrickRED.abort_async_file_read(file_id)¶

Parameters:	file_id -- int
Return type:	int

Aborts a read_file_async() operation in progress.

Returns the resulting error code.

On success the CALLBACK_ASYNC_FILE_READ callback will report OperationAborted.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.write_file(file_id, buffer, length_to_write)¶

Parameters:	file_id -- int buffer -- [int, int, ..58x.., int] length_to_write -- int
Return type:	(int, int)

Writes up to 61 bytes to a file object.

Returns the actual number of bytes written and the resulting error code.

If the file object was created by open_file() without the NonBlocking flag or by create_pipe() without the NonBlockingWrite flag then the error code NotSupported is returned.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and length_written.

BrickRED.write_file_unchecked(file_id, buffer, length_to_write)¶

Parameters:	file_id -- int buffer -- [int, int, ..58x.., int] length_to_write -- int
Return type:	None

Writes up to 61 bytes to a file object.

Does neither report the actual number of bytes written nor the resulting error code.

If the file object was created by open_file() without the NonBlocking flag or by create_pipe() without the NonBlockingWrite flag then the write operation will fail silently.

BrickRED.write_file_async(file_id, buffer, length_to_write)¶

Parameters:	file_id -- int buffer -- [int, int, ..58x.., int] length_to_write -- int
Return type:	None

Writes up to 61 bytes to a file object.

Reports the actual number of bytes written and the resulting error code via the CALLBACK_ASYNC_FILE_WRITE callback.

If the file object was created by open_file() without the NonBlocking flag or by create_pipe() without the NonBlockingWrite flag then the error code NotSupported is reported via the CALLBACK_ASYNC_FILE_WRITE callback.

BrickRED.set_file_position(file_id, offset, origin)¶

Parameters:	file_id -- int offset -- int origin -- int
Return type:	(int, int)

Set the current seek position of a file object in bytes relative to origin.

Possible file origins are:

Beginning = 0
Current = 1
End = 2

Returns the resulting absolute seek position and error code.

If the file object was created by create_pipe() then it has no seek position and the error code InvalidSeek is returned.

The following constants are available for this function:

BrickRED.FILE_ORIGIN_BEGINNING = 0
BrickRED.FILE_ORIGIN_CURRENT = 1
BrickRED.FILE_ORIGIN_END = 2
BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and position.

BrickRED.get_file_position(file_id)¶

Parameters:	file_id -- int
Return type:	(int, int)

Returns the current seek position of a file object in bytes and returns the resulting error code.

If the file object was created by create_pipe() then it has no seek position and the error code InvalidSeek is returned.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and position.

BrickRED.set_file_events(file_id, events)¶

Parameters:	file_id -- int events -- int
Return type:	int

The following constants are available for this function:

BrickRED.FILE_EVENT_READABLE = 1
BrickRED.FILE_EVENT_WRITABLE = 2
BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_file_events(file_id)¶

Parameters:	file_id -- int
Return type:	(int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144
BrickRED.FILE_EVENT_READABLE = 1
BrickRED.FILE_EVENT_WRITABLE = 2

The returned namedtuple has the variables error_code and events.

BrickRED.open_directory(name_string_id, session_id)¶

Parameters:	name_string_id -- int session_id -- int
Return type:	(int, int)

Opens an existing directory and allocates a new directory object for it.

FIXME: name has to be absolute

The reference count of the name string object is increased by one. When the directory object is destroyed then the reference count of the name string object is decreased by one. Also the name string object is locked and cannot be modified while the directory object holds a reference to it.

Returns the object ID of the new directory object and the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and directory_id.

BrickRED.get_directory_name(directory_id, session_id)¶

Parameters:	directory_id -- int session_id -- int
Return type:	(int, int)

Returns the name of a directory object, as passed to open_directory(), and the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and name_string_id.

BrickRED.get_next_directory_entry(directory_id, session_id)¶

Parameters:	directory_id -- int session_id -- int
Return type:	(int, int, int)

Returns the next entry in a directory object and the resulting error code.

If there is not next entry then error code NoMoreData is returned. To rewind a directory object call rewind_directory().

Possible directory entry types are:

Unknown = 0
Regular = 1
Directory = 2
Character = 3
Block = 4
FIFO = 5
Symlink = 6
Socket = 7

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144
BrickRED.DIRECTORY_ENTRY_TYPE_UNKNOWN = 0
BrickRED.DIRECTORY_ENTRY_TYPE_REGULAR = 1
BrickRED.DIRECTORY_ENTRY_TYPE_DIRECTORY = 2
BrickRED.DIRECTORY_ENTRY_TYPE_CHARACTER = 3
BrickRED.DIRECTORY_ENTRY_TYPE_BLOCK = 4
BrickRED.DIRECTORY_ENTRY_TYPE_FIFO = 5
BrickRED.DIRECTORY_ENTRY_TYPE_SYMLINK = 6
BrickRED.DIRECTORY_ENTRY_TYPE_SOCKET = 7

The returned namedtuple has the variables error_code, name_string_id and type.

BrickRED.rewind_directory(directory_id)¶

Parameters:	directory_id -- int
Return type:	int

Rewinds a directory object and returns the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.create_directory(name_string_id, flags, permissions, uid, gid)¶

Parameters:	name_string_id -- int flags -- int permissions -- int uid -- int gid -- int
Return type:	int

FIXME: name has to be absolute

The following constants are available for this function:

BrickRED.DIRECTORY_FLAG_RECURSIVE = 1
BrickRED.DIRECTORY_FLAG_EXCLUSIVE = 2
BrickRED.FILE_PERMISSION_USER_ALL = 448
BrickRED.FILE_PERMISSION_USER_READ = 256
BrickRED.FILE_PERMISSION_USER_WRITE = 128
BrickRED.FILE_PERMISSION_USER_EXECUTE = 64
BrickRED.FILE_PERMISSION_GROUP_ALL = 56
BrickRED.FILE_PERMISSION_GROUP_READ = 32
BrickRED.FILE_PERMISSION_GROUP_WRITE = 16
BrickRED.FILE_PERMISSION_GROUP_EXECUTE = 8
BrickRED.FILE_PERMISSION_OTHERS_ALL = 7
BrickRED.FILE_PERMISSION_OTHERS_READ = 4
BrickRED.FILE_PERMISSION_OTHERS_WRITE = 2
BrickRED.FILE_PERMISSION_OTHERS_EXECUTE = 1
BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_processes(session_id)¶

Parameters:	session_id -- int
Return type:	(int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and processes_list_id.

BrickRED.spawn_process(executable_string_id, arguments_list_id, environment_list_id, working_directory_string_id, uid, gid, stdin_file_id, stdout_file_id, stderr_file_id, session_id)¶

Parameters:	executable_string_id -- int arguments_list_id -- int environment_list_id -- int working_directory_string_id -- int uid -- int gid -- int stdin_file_id -- int stdout_file_id -- int stderr_file_id -- int session_id -- int
Return type:	(int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and process_id.

BrickRED.kill_process(process_id, signal)¶

Parameters:	process_id -- int signal -- int
Return type:	int

Sends a UNIX signal to a process object and returns the resulting error code.

Possible UNIX signals are:

Interrupt = 2
Quit = 3
Abort = 6
Kill = 9
User1 = 10
User2 = 12
Terminate = 15
Continue = 18
Stop = 19

The following constants are available for this function:

BrickRED.PROCESS_SIGNAL_INTERRUPT = 2
BrickRED.PROCESS_SIGNAL_QUIT = 3
BrickRED.PROCESS_SIGNAL_ABORT = 6
BrickRED.PROCESS_SIGNAL_KILL = 9
BrickRED.PROCESS_SIGNAL_USER1 = 10
BrickRED.PROCESS_SIGNAL_USER2 = 12
BrickRED.PROCESS_SIGNAL_TERMINATE = 15
BrickRED.PROCESS_SIGNAL_CONTINUE = 18
BrickRED.PROCESS_SIGNAL_STOP = 19
BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_process_command(process_id, session_id)¶

Parameters:	process_id -- int session_id -- int
Return type:	(int, int, int, int, int)

Returns the executable, arguments, environment and working directory used to spawn a process object, as passed to spawn_process(), and the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code, executable_string_id, arguments_list_id, environment_list_id and working_directory_string_id.

BrickRED.get_process_identity(process_id)¶

Parameters:	process_id -- int
Return type:	(int, int, int, int)

Returns the process ID and the user and group ID used to spawn a process object, as passed to spawn_process(), and the resulting error code.

The process ID is only valid if the state is Running or Stopped, see get_process_state().

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code, pid, uid and gid.

BrickRED.get_process_stdio(process_id, session_id)¶

Parameters:	process_id -- int session_id -- int
Return type:	(int, int, int, int)

Returns the stdin, stdout and stderr files used to spawn a process object, as passed to spawn_process(), and the resulting error code.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code, stdin_file_id, stdout_file_id and stderr_file_id.

BrickRED.get_process_state(process_id)¶

Parameters:	process_id -- int
Return type:	(int, int, int, int)

Returns the current state, timestamp and exit code of a process object, and the resulting error code.

Possible process states are:

Unknown = 0
Running = 1
Error = 2
Exited = 3
Killed = 4
Stopped = 5

The timestamp represents the UNIX time since when the process is in its current state.

The exit code is only valid if the state is Error, Exited, Killed or Stopped and has different meanings depending on the state:

Error: error code for error occurred while spawning the process (see below)
Exited: exit status of the process
Killed: UNIX signal number used to kill the process
Stopped: UNIX signal number used to stop the process

Possible exit/error codes in Error state are:

InternalError = 125
CannotExecute = 126
DoesNotExist = 127

The CannotExecute error can be caused by the executable being opened for writing.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144
BrickRED.PROCESS_STATE_UNKNOWN = 0
BrickRED.PROCESS_STATE_RUNNING = 1
BrickRED.PROCESS_STATE_ERROR = 2
BrickRED.PROCESS_STATE_EXITED = 3
BrickRED.PROCESS_STATE_KILLED = 4
BrickRED.PROCESS_STATE_STOPPED = 5

The returned namedtuple has the variables error_code, state, timestamp and exit_code.

BrickRED.get_programs(session_id)¶

Parameters:	session_id -- int
Return type:	(int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and programs_list_id.

BrickRED.define_program(identifier_string_id, session_id)¶

Parameters:	identifier_string_id -- int session_id -- int
Return type:	(int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and program_id.

BrickRED.purge_program(program_id, cookie)¶

Parameters:	program_id -- int cookie -- int
Return type:	int

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_program_identifier(program_id, session_id)¶

Parameters:	program_id -- int session_id -- int
Return type:	(int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and identifier_string_id.

BrickRED.get_program_root_directory(program_id, session_id)¶

Parameters:	program_id -- int session_id -- int
Return type:	(int, int)

FIXME: root directory is absolute: <home>/programs/<identifier>

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and root_directory_string_id.

BrickRED.set_program_command(program_id, executable_string_id, arguments_list_id, environment_list_id, working_directory_string_id)¶

Parameters:	program_id -- int executable_string_id -- int arguments_list_id -- int environment_list_id -- int working_directory_string_id -- int
Return type:	int

FIXME: working directory is relative to <home>/programs/<identifier>/bin

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_program_command(program_id, session_id)¶

Parameters:	program_id -- int session_id -- int
Return type:	(int, int, int, int, int)

FIXME: working directory is relative to <home>/programs/<identifier>/bin

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code, executable_string_id, arguments_list_id, environment_list_id and working_directory_string_id.

BrickRED.set_program_stdio_redirection(program_id, stdin_redirection, stdin_file_name_string_id, stdout_redirection, stdout_file_name_string_id, stderr_redirection, stderr_file_name_string_id)¶

Parameters:	program_id -- int stdin_redirection -- int stdin_file_name_string_id -- int stdout_redirection -- int stdout_file_name_string_id -- int stderr_redirection -- int stderr_file_name_string_id -- int
Return type:	int

FIXME: stdio file names are relative to <home>/programs/<identifier>/bin

The following constants are available for this function:

BrickRED.PROGRAM_STDIO_REDIRECTION_DEV_NULL = 0
BrickRED.PROGRAM_STDIO_REDIRECTION_PIPE = 1
BrickRED.PROGRAM_STDIO_REDIRECTION_FILE = 2
BrickRED.PROGRAM_STDIO_REDIRECTION_INDIVIDUAL_LOG = 3
BrickRED.PROGRAM_STDIO_REDIRECTION_CONTINUOUS_LOG = 4
BrickRED.PROGRAM_STDIO_REDIRECTION_STDOUT = 5
BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_program_stdio_redirection(program_id, session_id)¶

Parameters:	program_id -- int session_id -- int
Return type:	(int, int, int, int, int, int, int)

FIXME: stdio file names are relative to <home>/programs/<identifier>/bin

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144
BrickRED.PROGRAM_STDIO_REDIRECTION_DEV_NULL = 0
BrickRED.PROGRAM_STDIO_REDIRECTION_PIPE = 1
BrickRED.PROGRAM_STDIO_REDIRECTION_FILE = 2
BrickRED.PROGRAM_STDIO_REDIRECTION_INDIVIDUAL_LOG = 3
BrickRED.PROGRAM_STDIO_REDIRECTION_CONTINUOUS_LOG = 4
BrickRED.PROGRAM_STDIO_REDIRECTION_STDOUT = 5

The returned namedtuple has the variables error_code, stdin_redirection, stdin_file_name_string_id, stdout_redirection, stdout_file_name_string_id, stderr_redirection and stderr_file_name_string_id.

BrickRED.set_program_schedule(program_id, start_mode, continue_after_error, start_interval, start_fields_string_id)¶

Parameters:	program_id -- int start_mode -- int continue_after_error -- bool start_interval -- int start_fields_string_id -- int
Return type:	int

The following constants are available for this function:

BrickRED.PROGRAM_START_MODE_NEVER = 0
BrickRED.PROGRAM_START_MODE_ALWAYS = 1
BrickRED.PROGRAM_START_MODE_INTERVAL = 2
BrickRED.PROGRAM_START_MODE_CRON = 3
BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_program_schedule(program_id, session_id)¶

Parameters:	program_id -- int session_id -- int
Return type:	(int, int, bool, int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144
BrickRED.PROGRAM_START_MODE_NEVER = 0
BrickRED.PROGRAM_START_MODE_ALWAYS = 1
BrickRED.PROGRAM_START_MODE_INTERVAL = 2
BrickRED.PROGRAM_START_MODE_CRON = 3

The returned namedtuple has the variables error_code, start_mode, continue_after_error, start_interval and start_fields_string_id.

BrickRED.get_program_scheduler_state(program_id, session_id)¶

Parameters:	program_id -- int session_id -- int
Return type:	(int, int, int, int)

FIXME: message is currently valid in error-occurred state only

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144
BrickRED.PROGRAM_SCHEDULER_STATE_STOPPED = 0
BrickRED.PROGRAM_SCHEDULER_STATE_RUNNING = 1

The returned namedtuple has the variables error_code, state, timestamp and message_string_id.

BrickRED.continue_program_schedule(program_id)¶

Parameters:	program_id -- int
Return type:	int

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.start_program(program_id)¶

Parameters:	program_id -- int
Return type:	int

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_last_spawned_program_process(program_id, session_id)¶

Parameters:	program_id -- int session_id -- int
Return type:	(int, int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code, process_id and timestamp.

BrickRED.get_custom_program_option_names(program_id, session_id)¶

Parameters:	program_id -- int session_id -- int
Return type:	(int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and names_list_id.

BrickRED.set_custom_program_option_value(program_id, name_string_id, value_string_id)¶

Parameters:	program_id -- int name_string_id -- int value_string_id -- int
Return type:	int

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_custom_program_option_value(program_id, name_string_id, session_id)¶

Parameters:	program_id -- int name_string_id -- int session_id -- int
Return type:	(int, int)

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

The returned namedtuple has the variables error_code and value_string_id.

BrickRED.remove_custom_program_option(program_id, name_string_id)¶

Parameters:	program_id -- int name_string_id -- int
Return type:	int

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.get_api_version()¶

Return type:	[int, int, int]

Returns the version of the API definition (major, minor, revision) implemented by this API bindings. This is neither the release version of this API bindings nor does it tell you anything about the represented Brick or Bricklet.

BrickRED.get_response_expected(function_id)¶

Parameters:	function_id -- int
Return type:	bool

Returns the response expected flag for the function specified by the function ID parameter. It is true if the function is expected to send a response, false otherwise.

For getter functions this is enabled by default and cannot be disabled, because those functions will always send a response. For callback configuration functions it is enabled by default too, but can be disabled by set_response_expected(). For setter functions it is disabled by default and can be enabled.

Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is send and errors are silently ignored, because they cannot be detected.

See set_response_expected() for the list of function ID constants available for this function.

BrickRED.set_response_expected(function_id, response_expected)¶

Parameters:	function_id -- int response_expected -- bool
Return type:	None

Changes the response expected flag of the function specified by the function ID parameter. This flag can only be changed for setter (default value: false) and callback configuration functions (default value: true). For getter functions it is always enabled.

The following function ID constants are available for this function:

BrickRED.FUNCTION_EXPIRE_SESSION_UNCHECKED = 3
BrickRED.FUNCTION_RELEASE_OBJECT_UNCHECKED = 6
BrickRED.FUNCTION_READ_FILE_ASYNC = 21
BrickRED.FUNCTION_WRITE_FILE_UNCHECKED = 24
BrickRED.FUNCTION_WRITE_FILE_ASYNC = 25

BrickRED.set_response_expected_all(response_expected)¶

Parameters:	response_expected -- bool
Return type:	None

Changes the response expected flag for all setter and callback configuration functions of this device at once.

BrickRED.get_identity()¶

Return type:	(str, str, chr, [int, int, int], [int, int, int], int)

Returns the UID, the UID where the Brick is connected to, the position, the hardware and firmware version as well as the device identifier.

The position can be '0'-'8' (stack position).

The device identifier numbers can be found here. There is also a constant for the device identifier of this Brick.

The returned namedtuple has the variables uid, connected_uid, position, hardware_version, firmware_version and device_identifier.

Callback Configuration Functions¶

BrickRED.register_callback(callback_id, function)¶

Parameters:	callback_id -- int function -- callable
Return type:	None

Registers the given function with the given callback_id.

The available callback IDs with corresponding function signatures are listed below.

Callbacks¶

Callbacks can be registered to receive time critical or recurring data from the device. The registration is done with the register_callback() function of the device object. The first parameter is the callback ID and the second parameter the callback function:

def my_callback(param):
    print(param)

red.register_callback(BrickRED.CALLBACK_EXAMPLE, my_callback)

The available constants with inherent number and type of parameters are described below.

Note

Using callbacks for recurring events is always preferred compared to using getters. It will use less USB bandwidth and the latency will be a lot better, since there is no round trip time.

BrickRED.CALLBACK_ASYNC_FILE_READ¶

Parameters:	file_id -- int error_code -- int buffer -- [int, int, ..57x.., int] length_read -- int

This callback reports the result of a call to the read_file_async() function.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.CALLBACK_ASYNC_FILE_WRITE¶

Parameters:	file_id -- int error_code -- int length_written -- int

This callback reports the result of a call to the write_file_async() function.

The following constants are available for this function:

BrickRED.ERROR_CODE_SUCCESS = 0
BrickRED.ERROR_CODE_UNKNOWN_ERROR = 1
BrickRED.ERROR_CODE_INVALID_OPERATION = 2
BrickRED.ERROR_CODE_OPERATION_ABORTED = 3
BrickRED.ERROR_CODE_INTERNAL_ERROR = 4
BrickRED.ERROR_CODE_UNKNOWN_SESSION_ID = 5
BrickRED.ERROR_CODE_NO_FREE_SESSION_ID = 6
BrickRED.ERROR_CODE_UNKNOWN_OBJECT_ID = 7
BrickRED.ERROR_CODE_NO_FREE_OBJECT_ID = 8
BrickRED.ERROR_CODE_OBJECT_IS_LOCKED = 9
BrickRED.ERROR_CODE_NO_MORE_DATA = 10
BrickRED.ERROR_CODE_WRONG_LIST_ITEM_TYPE = 11
BrickRED.ERROR_CODE_PROGRAM_IS_PURGED = 12
BrickRED.ERROR_CODE_INVALID_PARAMETER = 128
BrickRED.ERROR_CODE_NO_FREE_MEMORY = 129
BrickRED.ERROR_CODE_NO_FREE_SPACE = 130
BrickRED.ERROR_CODE_ACCESS_DENIED = 121
BrickRED.ERROR_CODE_ALREADY_EXISTS = 132
BrickRED.ERROR_CODE_DOES_NOT_EXIST = 133
BrickRED.ERROR_CODE_INTERRUPTED = 134
BrickRED.ERROR_CODE_IS_DIRECTORY = 135
BrickRED.ERROR_CODE_NOT_A_DIRECTORY = 136
BrickRED.ERROR_CODE_WOULD_BLOCK = 137
BrickRED.ERROR_CODE_OVERFLOW = 138
BrickRED.ERROR_CODE_BAD_FILE_DESCRIPTOR = 139
BrickRED.ERROR_CODE_OUT_OF_RANGE = 140
BrickRED.ERROR_CODE_NAME_TOO_LONG = 141
BrickRED.ERROR_CODE_INVALID_SEEK = 142
BrickRED.ERROR_CODE_NOT_SUPPORTED = 143
BrickRED.ERROR_CODE_TOO_MANY_OPEN_FILES = 144

BrickRED.CALLBACK_FILE_EVENTS_OCCURRED¶

Parameters:	file_id -- int events -- int

The following constants are available for this function:

BrickRED.FILE_EVENT_READABLE = 1
BrickRED.FILE_EVENT_WRITABLE = 2

BrickRED.CALLBACK_PROCESS_STATE_CHANGED¶

Parameters:	process_id -- int state -- int timestamp -- int exit_code -- int

The following constants are available for this function:

BrickRED.PROCESS_STATE_UNKNOWN = 0
BrickRED.PROCESS_STATE_RUNNING = 1
BrickRED.PROCESS_STATE_ERROR = 2
BrickRED.PROCESS_STATE_EXITED = 3
BrickRED.PROCESS_STATE_KILLED = 4
BrickRED.PROCESS_STATE_STOPPED = 5

BrickRED.CALLBACK_PROGRAM_SCHEDULER_STATE_CHANGED¶

Parameters:	program_id -- int

BrickRED.CALLBACK_PROGRAM_PROCESS_SPAWNED¶

Parameters:	program_id -- int

Constants¶

BrickRED.DEVICE_IDENTIFIER¶

This constant is used to identify a RED Brick.

The get_identity() function and the CALLBACK_ENUMERATE callback of the IP Connection have a device_identifier parameter to specify the Brick's or Bricklet's type.

BrickRED.DEVICE_DISPLAY_NAME¶: This constant represents the human readable name of a RED Brick.