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11 .TH PTHREAD_SPIN_LOCK 3C "Jan 30, 2004"
13 pthread_spin_lock, pthread_spin_trylock \- lock a spin lock object
17 cc \fB-mt\fR [ \fIflag\fR... ] \fIfile\fR... [ \fIlibrary\fR... ]
20 \fBint\fR \fBpthread_spin_lock\fR(\fBpthread_spinlock_t *\fR\fIlock\fR);
27 \fBint\fR \fBpthread_spin_trylock\fR(\fBpthread_spinlock_t *\fR\fIlock\fR);
33 The \fBpthread_spin_lock()\fR function locks the spin lock referenced by
34 \fIlock\fR. The calling thread acquires the lock if it is not held by another
35 thread. Otherwise, the thread spins (that is, does not return from the
36 \fBpthread_spin_lock call()\fR) until the lock becomes available. The results
37 are undefined if the calling thread holds the lock at the time the call is
41 The \fBpthread_spin_trylock()\fR function locks the spin lock referenced by
42 \fIlock\fR if it is not held by any thread. Otherwise, the function fails.
45 The results are undefined if either of these functions is called with an
46 uninitialized spin lock.
50 Upon successful completion, these functions returns 0. Otherwise, an error
51 number is returned to indicate the error.
55 The \fBpthread_spin_trylock()\fR function will fail if:
62 A thread currently holds the lock.
67 These functions may fail if:
74 The value specified by \fIlock\fR does not refer to an initialized spin lock
80 The \fBpthread_spin_lock()\fR function may fail if:
87 The calling thread already holds the lock.
93 See \fBattributes\fR(5) for descriptions of the following attributes:
101 ATTRIBUTE TYPE ATTRIBUTE VALUE
103 Interface Stability Standard
111 \fBpthread_spin_destroy\fR(3C), \fBpthread_spin_unlock\fR(3C),
112 \fBattributes\fR(5), \fBstandards\fR(5)