Skip to content
This repository
tag: Version-3.6.2
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 57 lines (45 sloc) 1.47 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/


#include "SC_Sem.h"

SC_Semaphore::SC_Semaphore(int initialCount)
{
pthread_mutex_init (&mutex, NULL);
pthread_cond_init (&available, NULL);
count = initialCount;
}

SC_Semaphore::~SC_Semaphore()
{
pthread_mutex_destroy (&mutex);
pthread_cond_destroy (&available);
}

void SC_Semaphore::Acquire()
{
pthread_mutex_lock (&mutex);
while (count < 1) {
pthread_cond_wait (&available, &mutex);
}
count--;
pthread_mutex_unlock (&mutex);

}

void SC_Semaphore::Release()
{
pthread_mutex_lock (&mutex);
if (++count > 0) {
pthread_cond_signal (&available);
}
pthread_mutex_unlock (&mutex);
}

Something went wrong with that request. Please try again.