1 files changed, 104 insertions, 0 deletions
diff --git a/man3p/pthread_barrier_wait.3p b/man3p/pthread_barrier_wait.3p
new file mode 100644
index 000000000..402168812
--- /dev/null
+++ b/man3p/pthread_barrier_wait.3p
@@ -0,0 +1,104 @@
+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "PTHREAD_BARRIER_WAIT" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" pthread_barrier_wait 
+.SH NAME
+pthread_barrier_wait \- synchronize at a barrier (\fBADVANCED REALTIME
+THREADS\fP)
+.SH SYNOPSIS
+.LP
+\fB#include <pthread.h>
+.br
+.sp
+int pthread_barrier_wait(pthread_barrier_t *\fP\fIbarrier\fP\fB);
+\fP
+\fB
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIpthread_barrier_wait\fP() function shall synchronize participating
+threads at the barrier referenced by \fIbarrier\fP.
+The calling thread shall block until the required number of threads
+have called \fIpthread_barrier_wait\fP() specifying the
+barrier.
+.LP
+When the required number of threads have called \fIpthread_barrier_wait\fP()
+specifying the barrier, the constant
+PTHREAD_BARRIER_SERIAL_THREAD shall be returned to one unspecified
+thread and zero shall be returned to each of the remaining
+threads. At this point, the barrier shall be reset to the state it
+had as a result of the most recent \fIpthread_barrier_init\fP() function
+that referenced it.
+.LP
+The constant PTHREAD_BARRIER_SERIAL_THREAD is defined in \fI<pthread.h>\fP
+and
+its value shall be distinct from any other value returned by \fIpthread_barrier_wait\fP().
+.LP
+The results are undefined if this function is called with an uninitialized
+barrier.
+.LP
+If a signal is delivered to a thread blocked on a barrier, upon return
+from the signal handler the thread shall resume waiting
+at the barrier if the barrier wait has not completed (that is, if
+the required number of threads have not arrived at the barrier
+during the execution of the signal handler); otherwise, the thread
+shall continue as normal from the completed barrier wait. Until
+the thread in the signal handler returns from it, it is unspecified
+whether other threads may proceed past the barrier once they
+have all reached it.
+.LP
+A thread that has blocked on a barrier shall not prevent any unblocked
+thread that is eligible to use the same processing
+resources from eventually making forward progress in its execution.
+Eligibility for processing resources shall be determined by the
+scheduling policy.
+.SH RETURN VALUE
+.LP
+Upon successful completion, the \fIpthread_barrier_wait\fP() function
+shall return PTHREAD_BARRIER_SERIAL_THREAD for a single
+(arbitrary) thread synchronized at the barrier and zero for each of
+the other threads. Otherwise, an error number shall be returned
+to indicate the error.
+.SH ERRORS
+.LP
+The \fIpthread_barrier_wait\fP() function may fail if:
+.TP 7
+.B EINVAL
+The value specified by \fIbarrier\fP does not refer to an initialized
+barrier object.
+.sp
+.LP
+This function shall not return an error code of [EINTR].
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+Applications using this function may be subject to priority inversion,
+as discussed in the Base Definitions volume of
+IEEE\ Std\ 1003.1-2001, Section 3.285, Priority Inversion.
+.LP
+The \fIpthread_barrier_wait\fP() function is part of the Barriers
+option and need not be provided on all implementations.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIpthread_barrier_destroy\fP() , the Base Definitions volume of
+IEEE\ Std\ 1003.1-2001, \fI<pthread.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .