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OpenSolaris 2009.06 - man page for pthread_spin_unlock (opensolaris section 3c)

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 5.11 30 Jan 2004 pthread_spin_unlock(3C)