libvirt/src/util/threads.h
Daniel P. Berrange e40438fa7f Add a new timed condition variable wait API
* src/util/threads.h, src/util/threads-pthread.c,
  src/libvirt_private.syms: Add virCondWaitUntil()
2009-11-10 11:59:17 +00:00

74 lines
2.1 KiB
C

/*
* threads.h: basic thread synchronization primitives
*
* Copyright (C) 2009 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __THREADS_H_
#define __THREADS_H_
#include "internal.h"
typedef struct virMutex virMutex;
typedef virMutex *virMutexPtr;
typedef struct virCond virCond;
typedef virCond *virCondPtr;
typedef struct virThreadLocal virThreadLocal;
typedef virThreadLocal *virThreadLocalPtr;
int virThreadInitialize(void) ATTRIBUTE_RETURN_CHECK;
void virThreadOnExit(void);
int virMutexInit(virMutexPtr m) ATTRIBUTE_RETURN_CHECK;
void virMutexDestroy(virMutexPtr m);
void virMutexLock(virMutexPtr m);
void virMutexUnlock(virMutexPtr m);
int virCondInit(virCondPtr c) ATTRIBUTE_RETURN_CHECK;
int virCondDestroy(virCondPtr c) ATTRIBUTE_RETURN_CHECK;
int virCondWait(virCondPtr c, virMutexPtr m) ATTRIBUTE_RETURN_CHECK;
int virCondWaitUntil(virCondPtr c, virMutexPtr m, unsigned long long whenms) ATTRIBUTE_RETURN_CHECK;
void virCondSignal(virCondPtr c);
void virCondBroadcast(virCondPtr c);
typedef void (*virThreadLocalCleanup)(void *);
int virThreadLocalInit(virThreadLocalPtr l,
virThreadLocalCleanup c) ATTRIBUTE_RETURN_CHECK;
void *virThreadLocalGet(virThreadLocalPtr l);
void virThreadLocalSet(virThreadLocalPtr l, void*);
#ifdef HAVE_PTHREAD_H
#include "threads-pthread.h"
#else
#ifdef WIN32
#include "threads-win32.h"
#else
#error "Either pthreads or Win32 threads are required"
#endif
#endif
#endif