sem(4) - NetBSD Manual Pages

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SEM(4)                  NetBSD Kernel Interfaces Manual                 SEM(4)


NAME

     sem -- POSIX semaphores


SYNOPSIS

     The POSIX semaphore code is included by default in all kernels.


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 and became
     non-optional in NetBSD 7.0.

NetBSD 10.99                    August 20, 2015                   NetBSD 10.99