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46 .TH PTHREAD_SPIN_LOCK 3C "Jan 30, 2004"
48 pthread_spin_lock, pthread_spin_trylock \- lock a spin lock object
52 cc \fB-mt\fR [ \fIflag\fR... ] \fIfile\fR... [ \fIlibrary\fR... ]
55 \fBint\fR \fBpthread_spin_lock\fR(\fBpthread_spinlock_t *\fR\fIlock\fR);
62 \fBint\fR \fBpthread_spin_trylock\fR(\fBpthread_spinlock_t *\fR\fIlock\fR);
68 The \fBpthread_spin_lock()\fR function locks the spin lock referenced by
69 \fIlock\fR. The calling thread acquires the lock if it is not held by another
70 thread. Otherwise, the thread spins (that is, does not return from the
71 \fBpthread_spin_lock call()\fR) until the lock becomes available. The results
72 are undefined if the calling thread holds the lock at the time the call is
76 The \fBpthread_spin_trylock()\fR function locks the spin lock referenced by
77 \fIlock\fR if it is not held by any thread. Otherwise, the function fails.
80 The results are undefined if either of these functions is called with an
81 uninitialized spin lock.
85 Upon successful completion, these functions returns 0. Otherwise, an error
86 number is returned to indicate the error.
90 The \fBpthread_spin_trylock()\fR function will fail if:
97 A thread currently holds the lock.
102 These functions may fail if:
109 The value specified by \fIlock\fR does not refer to an initialized spin lock
115 The \fBpthread_spin_lock()\fR function may fail if:
122 The calling thread already holds the lock.
128 See \fBattributes\fR(5) for descriptions of the following attributes:
136 ATTRIBUTE TYPE ATTRIBUTE VALUE
138 Interface Stability Standard
146 \fBpthread_spin_destroy\fR(3C), \fBpthread_spin_unlock\fR(3C),
147 \fBattributes\fR(5), \fBstandards\fR(5)