pthread_cond_signal_int_np man page on OSF1

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pthread_cond_signal_int_np(3)			 pthread_cond_signal_int_np(3)

NAME
       pthread_cond_signal_int_np  -  Wakes  one thread that is waiting on the
       specified condition variable (called from interrupt level only)

SYNOPSIS
       #include <pthread.h>

       int pthread_cond_signal_int_np(
	       pthread_cond_t *cond );

LIBRARY
       DECthreads POSIX 1003.1c Library (libpthread.so)

STANDARDS
       None

PARAMETERS
       Condition variable to be signaled.

DESCRIPTION
       This routine wakes one thread waiting on the specified condition	 vari‐
       able.  It  can only be called from a software interrupt handler routine
       (that is, from a Tru64 UNIX signal handler  or  OpenVMS	AST).  Calling
       this  routine  implies  that  it might be possible for a single waiting
       thread to proceed.

       The scheduling policies of the waiting threads determine	 which	thread
       is  awakened. For policies SCHED_FIFO and SCHED_RR, a blocked thread is
       chosen in priority order, using first-in/first-out (FIFO) within prior‐
       ities.

       This routine does not cause a thread blocked on a condition variable to
       resume execution immediately. A thread resumes execution at  some  time
       after the interrupt handler routine returns.

       You can call this routine regardless of whether the associated mutex is
       locked (by some other thread). Never lock a  mutex  from	 an  interrupt
       handler routine.

       Note  This routine allows you to signal a thread from a software inter‐
       rupt handler. Do not call this routine from noninterrupt code. To  sig‐
       nal  a thread from the normal noninterrupt level, use pthread_cond_sig‐
       nal(3).

RETURN VALUES
       If an error condition occurs, this routine  returns  an	integer	 value
       indicating  the	type  of error. Possible return values are as follows:
       Successful completion.  The value specified by cond is invalid.

ERRORS
       None

SEE ALSO
       Functions:      pthread_cond_broadcast(3),      pthread_cond_signal(3),
       pthread_cond_timedwait(3), pthread_cond_wait(3)

       Manuals: Guide to DECthreads and Programmer's Guide

						 pthread_cond_signal_int_np(3)
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