FRESEM.2.adoc

FRESEM(2) Manual Page

NAME

FRESEM - free a semaphore.

SYNOPSIS

Input

• XR - semaphore number

Call

jsr FRESEM

Output

• AC - error code (or E_OK)

• C - set if error code not E_OK

Note	XR and YR are modified.

DESCRIPTION

Frees a semaphore.

Note	semaphore MUST NOT be locked or held when being freed.

Note	negative semaphore numbers (i.e. system semaphores) cannot be freed.

RETURN CODES

Error return codes are given when at return, C=1.

E_NOSEM

no valid semaphore number

SEE ALSO

semaphores(7), GETSEM(2), PSEM2(2), VSEM(2), LOCKSEM(2)

AUTHOR

Written by André Fachat.

REPORTING BUGS

Please report bugs at https://github.com/fachat/GeckOS-V2/issues