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/* Threads.h -- multithreading library
2008-11-22 : Igor Pavlov : Public domain */

#ifndef __7Z_THRESDS_H
#define __7Z_THRESDS_H

#include "7zTypes.h"
#include "windows.h"

#ifdef ENV_BEOS
#include <kernel/OS.h>
#define MAX_THREAD 256
#else
#include <pthread.h>
#endif

/* #define DEBUG_SYNCHRO 1 */

typedef struct _CThread
{
#ifdef ENV_BEOS
	thread_id _tid;
#else
	pthread_t _tid;
#endif
	int _created;

} CThread;

#define Thread_Construct(thread) (thread)->_created = 0
#define Thread_WasCreated(thread) ((thread)->_created != 0)

typedef unsigned THREAD_FUNC_RET_TYPE;
#define THREAD_FUNC_CALL_TYPE MY_STD_CALL
#define THREAD_FUNC_DECL THREAD_FUNC_RET_TYPE THREAD_FUNC_CALL_TYPE

typedef THREAD_FUNC_RET_TYPE (THREAD_FUNC_CALL_TYPE * THREAD_FUNC_TYPE)(void *);

WRes Thread_Create(CThread *thread, THREAD_FUNC_TYPE startAddress, LPVOID parameter);
WRes Thread_Wait(CThread *thread);
WRes Thread_Close(CThread *thread);

typedef struct _CEvent
{
  int _created;
  int _manual_reset;
  int _state;
#ifdef ENV_BEOS
  thread_id _waiting[MAX_THREAD];
  int       _index_waiting;
  sem_id    _sem;
#else
  pthread_mutex_t _mutex;
  pthread_cond_t  _cond;
#endif
} CEvent;

typedef CEvent CAutoResetEvent;
typedef CEvent CManualResetEvent;

#define Event_Construct(event) (event)->_created = 0
#define Event_IsCreated(event) ((event)->_created)

WRes ManualResetEvent_Create(CManualResetEvent *event, int initialSignaled);
WRes ManualResetEvent_CreateNotSignaled(CManualResetEvent *event);
WRes AutoResetEvent_Create(CAutoResetEvent *event, int initialSignaled);
WRes AutoResetEvent_CreateNotSignaled(CAutoResetEvent *event);
WRes Event_Set(CEvent *event);
WRes Event_Reset(CEvent *event);
WRes Event_Wait(CEvent *event);
WRes Event_Close(CEvent *event);


typedef struct _CSemaphore
{
  int _created;
  UInt32 _count;
  UInt32 _maxCount;
#ifdef ENV_BEOS
  thread_id _waiting[MAX_THREAD];
  int       _index_waiting;
  sem_id    _sem;
#else
  pthread_mutex_t _mutex;
  pthread_cond_t  _cond;
#endif
} CSemaphore;

#define Semaphore_Construct(p) (p)->_created = 0

WRes Semaphore_Create(CSemaphore *p, UInt32 initiallyCount, UInt32 maxCount);
WRes Semaphore_ReleaseN(CSemaphore *p, UInt32 num);
#define Semaphore_Release1(p) Semaphore_ReleaseN(p, 1)
WRes Semaphore_Wait(CSemaphore *p);
WRes Semaphore_Close(CSemaphore *p);

typedef struct {
#ifdef ENV_BEOS
	sem_id _sem;
#else
        pthread_mutex_t _mutex;
#endif
} CCriticalSection;

WRes CriticalSection_Init(CCriticalSection *p);
#ifdef ENV_BEOS
#define CriticalSection_Delete(p) delete_sem((p)->_sem)
#define CriticalSection_Enter(p)  acquire_sem((p)->_sem)
#define CriticalSection_Leave(p)  release_sem((p)->_sem)
#else
#ifdef DEBUG_SYNCHRO
void CriticalSection_Delete(CCriticalSection *);
void CriticalSection_Enter(CCriticalSection *);
void CriticalSection_Leave(CCriticalSection *);
#else
#define CriticalSection_Delete(p) pthread_mutex_destroy(&((p)->_mutex))
#define CriticalSection_Enter(p)  pthread_mutex_lock(&((p)->_mutex))
#define CriticalSection_Leave(p)  pthread_mutex_unlock(&((p)->_mutex))
#endif
#endif

#endif