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SunOS 5.10 - man page for semaphore (sunos section 3head)

semaphore.h(3HEAD)						      Headers							semaphore.h(3HEAD)

semaphore.h, semaphore - semaphores
#include <semaphore.h>
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(3RT)). 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).
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+
fcntl.h(3HEAD), types.h(3HEAD), sem_destroy(3RT), sem_getvalue(3RT), sem_init(3RT), sem_open(3RT), sem_post(3RT), sem_timedwait(3RT), sem_unlink(3RT), sem_wait(3RT), attributes(5), standards(5) SunOS 5.10 10 Sep 2004 semaphore.h(3HEAD)