RTEMS 4.7.0 On-Line Library

Semaphore Manager sig_sem - Signal Semaphore

RTEMS ITRON 3.0 API User's Guide

3.4.3: sig_sem - Signal Semaphore

CALLING SEQUENCE:

ER sig_sem(
  ID semid
);

STATUS CODES:

E_OK - Normal Completion

E_ID - Invalid ID number (semid was invalid or could not be used)

E_NOEXS - Object does not exist (the semaphore specified by semid does not exist)

E_OACV - Object access violation (A semid less than -4 was specified from a user task. This is implementation dependent.)

E_QOVR - Queuing or nesting overflow (the queuing count given by semcnt went over the maximum allowed)

EN_OBJNO - An object number which could not be accessed on the target node is specified.

EN_CTXID - Specified an object on another node when the system call was issued from a task in dispatch disabled state or from a task-independent portion

DESCRIPTION:

NOTES:

Multiprocessing is not supported. Thus none of the "EN_" status codes will be returned.

RTEMS ITRON 3.0 API User's Guide