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NetBSD 6.1.5 - man page for sem (netbsd section 4)

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SEM(4)				   BSD Kernel Interfaces Manual 			   SEM(4)

NAME
     sem -- POSIX semaphores

SYNOPSIS
     To link into the kernel:

	   options P1003_1B_SEMAPHORE

DESCRIPTION
     The sem facility provides system calls used by the standard C library (libc) to implement
     POSIX semaphores.

SEE ALSO
     config(1), sem_destroy(3), sem_getvalue(3), sem_init(3), sem_open(3), sem_post(3),
     sem_wait(3), options(4)

HISTORY
     The sem facility appeared as a kernel option in NetBSD 2.0.

BUGS
     The current implementation does not support shared, unnamed semaphores.

BSD					 January 21, 2005				      BSD
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