semaphore.h(3HEAD) Headers semaphore.h(3HEAD)NAME
semaphore.h, semaphore - semaphores
SYNOPSIS
#include <semaphore.h>
DESCRIPTION
The <semaphore.h> header defines the sem_t type, used in performing
semaphore operations. The semaphore can be implemented using a file
descriptor, in which case applications are able to open up at least a
total of {OPEN_MAX} files and semaphores. The symbol SEM_FAILED is
defined (see sem_open(3C)).
Inclusion of the <semaphore.h> header can make visible symbols defined
in the headers <fcntl.h> and <sys/types.h>. See fcntl.h(3HEAD) and
types.h(3HEAD).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Committed │
├─────────────────────────────┼─────────────────────────────┤
│Standard │See standards(5). │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOfcntl.h(3HEAD), types.h(3HEAD), sem_destroy(3C), sem_getvalue(3C),
sem_init(3C), sem_open(3C), sem_post(3C), sem_timedwait(3C),
sem_unlink(3C), sem_wait(3C), attributes(5), standards(5)SunOS 5.11 5 Feb 2008 semaphore.h(3HEAD)
