/* Definitions for thread support. * * JC, 9/5/94 * 30/7/99 RP, JC * - reworked for posix/solaris threads * 28/9/99 JC * - restructured, made part of public API */ /* This file is part of VIPS. VIPS is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser 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 */ /* These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk */ #ifndef VIPS_SEMAPHORE_H #define VIPS_SEMAPHORE_H #ifdef __cplusplus extern "C" { #endif /*__cplusplus*/ #include #include /* Implement our own semaphores. */ typedef struct { char *name; int v; GMutex *mutex; GCond *cond; } VipsSemaphore; int vips_semaphore_up( VipsSemaphore *s ); int vips_semaphore_down( VipsSemaphore *s ); int vips_semaphore_upn( VipsSemaphore *s, int n ); int vips_semaphore_downn( VipsSemaphore *s, int n ); void vips_semaphore_destroy( VipsSemaphore *s ); void vips_semaphore_init( VipsSemaphore *s, int v, char *name ); #ifdef __cplusplus } #endif /*__cplusplus*/ #endif /*VIPS_SEMAPHORE_H*/