pthread_spin_unlock(3c) [sunos man page]

pthread_spin_unlock(3C) 				   Standard C Library Functions 				   pthread_spin_unlock(3C)

NAME

       pthread_spin_unlock - unlock a spin lock object

SYNOPSIS

       cc -mt [ flag... ] file... [ library... ]
       #include <pthread.h>

       int pthread_spin_unlock(pthread_spinlock_t *lock);

DESCRIPTION

       The  pthread_spin_unlock()  function  releases  the  spin  lock	referenced  by	lock  which  was  locked with the pthread_spin_lock(3C) or
       pthread_spin_trylock(3C) functions. The results are undefined if the lock is not held by the calling thread. If there are threads  spinning
       on the lock when pthread_spin_unlock() is called, the lock becomes available and an unspecified spinning thread acquires the lock.

       The results are undefined if this function is called with an uninitialized thread spin lock.

RETURN VALUES

       Upon  successful  completion,  the  pthread_spin_unlock()  function returns 0. Otherwise, an error number shall be returned to indicate the
       error.

ERRORS

       The pthread_spin_unlock() function will fail if:

       EINVAL	       An invalid argument was specified.

       EPERM	       The calling thread does not hold the lock.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       pthread_spin_destroy(3C), pthread_spin_lock(3C), attributes(5), standards(5)

SunOS 5.10							    30 Jan 2004 					   pthread_spin_unlock(3C)

pthread_spin_lock(3C)					   Standard C Library Functions 				     pthread_spin_lock(3C)

NAME

       pthread_spin_lock, pthread_spin_trylock - lock a spin lock object

SYNOPSIS

       cc -mt [ flag... ] file... [ library... ]
       #include <pthread.h>

       int pthread_spin_lock(pthread_spinlock_t *lock);

       #include <pthread.h>

       int pthread_spin_trylock(pthread_spinlock_t *lock);

DESCRIPTION

       The  pthread_spin_lock() function locks the spin lock referenced by lock. The calling thread acquires the lock if it is not held by another
       thread. Otherwise, the thread spins (that is, does not return from the pthread_spin_lock call()) until  the  lock  becomes  available.  The
       results are undefined if the calling thread holds the lock at the time the call is made.

       The pthread_spin_trylock() function locks the spin lock referenced by lock if it is not held by any thread. Otherwise, the function fails.

       The results are undefined if either of these functions is called with an uninitialized spin lock.

RETURN VALUES

       Upon successful completion, these functions returns 0. Otherwise, an error number is returned to indicate the error.

ERRORS

       The pthread_spin_trylock() function will fail if:

       EBUSY	       A thread currently holds the lock.

       These functions may fail if:

       EINVAL	       The value specified by lock does not refer to an initialized spin lock object.

       The pthread_spin_lock() function may fail if:

       EDEADLK	       The calling thread already holds the lock.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       pthread_spin_destroy(3C), pthread_spin_unlock(3C), attributes(5), standards(5)

SunOS 5.10							    30 Jan 2004 					     pthread_spin_lock(3C)