65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
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/* Definitions for thread support.
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*
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* JC, 9/5/94
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* 30/7/99 RP, JC
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* - reworked for posix/solaris threads
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* 28/9/99 JC
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* - restructured, made part of public API
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifndef IM_SEMAPHORE_H
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#define IM_SEMAPHORE_H
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#ifdef __cplusplus
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extern "C" {
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#endif /*__cplusplus*/
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/* Implement our own semaphores.
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*/
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typedef struct {
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char *name;
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int v;
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GMutex *mutex;
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GCond *cond;
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} im_semaphore_t;
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int im_semaphore_up( im_semaphore_t *s );
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int im_semaphore_down( im_semaphore_t *s );
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int im_semaphore_upn( im_semaphore_t *s, int n );
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int im_semaphore_downn( im_semaphore_t *s, int n );
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void im_semaphore_destroy( im_semaphore_t *s );
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void im_semaphore_init( im_semaphore_t *s, int v, char *name );
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#ifdef __cplusplus
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}
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#endif /*__cplusplus*/
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#endif /*IM_SEMAPHORE_H*/
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