pthread_mutex_init(3) - NetBSD Manual Pages

PTHREAD_MUTEX_INIT(3)   NetBSD Library Functions Manual  PTHREAD_MUTEX_INIT(3)


NAME
pthread_mutex_init -- create a mutex
LIBRARY
POSIX Threads Library (libpthread, -lpthread)
SYNOPSIS
#include <pthread.h> int pthread_mutex_init(pthread_mutex_t * restrict mutex, const pthread_mutexattr_t * restrict attr);
DESCRIPTION
The pthread_mutex_init() function creates a new mutex, with attributes specified with attr. If attr is NULL the default attributes are used.
RETURN VALUES
If successful, pthread_mutex_init() will return zero and put the new mutex id into mutex, otherwise an error number will be returned to indi- cate the error.
ERRORS
pthread_mutex_init() shall fail if: [EAGAIN] The system lacks the resources to initialize another mutex. [ENOMEM] The process cannot allocate enough memory to initial- ize another mutex. pthread_mutex_init() may fail if: [EINVAL] The value specified by attr is invalid.
SEE ALSO
pthread_mutex_destroy(3), pthread_mutex_lock(3), pthread_mutex_trylock(3), pthread_mutex_unlock(3)
STANDARDS
pthread_mutex_init() conforms to ISO/IEC 9945-1:1996 (``POSIX.1''). NetBSD 5.2.2 January 30, 2003 NetBSD 5.2.2

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