transmission/libtransmission/platform.h

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/******************************************************************************
* $Id$
*
* Copyright (c) 2005 Transmission authors and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#ifndef TR_PLATFORM_H
#define TR_PLATFORM_H 1
#ifdef SYS_BEOS
#include <kernel/OS.h>
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typedef thread_id tr_thread_id_t;
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typedef sem_id tr_lock_t;
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typedef int tr_cond_t;
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#else
#include <pthread.h>
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typedef pthread_t tr_thread_id_t;
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typedef pthread_mutex_t tr_lock_t;
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typedef pthread_cond_t tr_cond_t;
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#endif
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typedef struct tr_thread_s
{
void (* func ) ( void * );
void * arg;
char * name;
tr_thread_id_t thread;;
}
tr_thread_t;
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const char * tr_getHomeDirectory( void );
const char * tr_getCacheDirectory( void );
const char * tr_getTorrentsDirectory( void );
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/**
* When instantiating a thread with a deferred call to tr_threadCreate(),
* initializing it to THREAD_EMPTY makes calls tr_threadJoin() safe.
*/
const tr_thread_t THREAD_EMPTY;
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void tr_threadCreate ( tr_thread_t *, void (*func)(void *),
void * arg, const char * name );
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void tr_threadJoin ( tr_thread_t * );
void tr_lockInit ( tr_lock_t * );
void tr_lockClose ( tr_lock_t * );
int tr_lockTryLock ( tr_lock_t * );
void tr_lockLock ( tr_lock_t * );
void tr_lockUnlock ( tr_lock_t * );
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void tr_condInit ( tr_cond_t * );
void tr_condSignal ( tr_cond_t * );
void tr_condBroadcast ( tr_cond_t * );
void tr_condClose ( tr_cond_t * );
void tr_condWait ( tr_cond_t *, tr_lock_t * );
/***
**** RW lock:
**** The lock can be had by one writer or any number of readers.
***/
typedef struct tr_rwlock_s
{
tr_lock_t lock;
tr_cond_t readCond;
tr_cond_t writeCond;
size_t readCount;
size_t wantToRead;
size_t wantToWrite;
int haveWriter;
}
tr_rwlock_t;
void tr_rwInit ( tr_rwlock_t * );
void tr_rwClose ( tr_rwlock_t * );
void tr_rwReaderLock ( tr_rwlock_t * );
int tr_rwReaderTrylock ( tr_rwlock_t * );
void tr_rwReaderUnlock ( tr_rwlock_t * );
void tr_rwWriterLock ( tr_rwlock_t * );
int tr_rwWriterTrylock ( tr_rwlock_t * );
void tr_rwWriterUnlock ( tr_rwlock_t * );
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struct in_addr; /* forward declaration to calm gcc down */
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int
tr_getDefaultRoute( struct in_addr * addr );
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#endif