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sem
Named POSIX Semaphores
Description
Named POSIX Semaphores
Usage
sem_open(name, create = FALSE, overwrite = FALSE, value = 0) sem_post(sem) sem_wait(sem) sem_close(sem) sem_unlink(name)
Arguments
name |
the name of the semaphore. Consult |
create |
should the semaphore be created if it currently does not exist? |
overwrite |
if |
value |
the initial value of the semaphore ( |
sem |
an object as returned by |
Value
For sem_open, an object of class "sem", which is an external
pointer to the POSIX semaphore. All other functions return NULL
invisibly and are called for their side effects.
Windows Support
Not supported on Windows.
Lifecycle
![options:
alt='[Experimental]'](../help/figures/lifecycle-experimental.svg)