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/*****************************************************************************/
// Copyright 2002-2008 Adobe Systems Incorporated
// All Rights Reserved.
//
// NOTICE: Adobe permits you to use, modify, and distribute this file in
// accordance with the terms of the Adobe license agreement accompanying it.
/*****************************************************************************/
/* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_pthread.h#1 $ */
/* $DateTime: 2012/05/30 13:28:51 $ */
/* $Change: 832332 $ */
/* $Author: tknoll $ */
/*****************************************************************************/
#ifndef __dng_pthread__
#define __dng_pthread__
/*****************************************************************************/
#include "dng_flags.h"
/*****************************************************************************/
#if qDNGThreadSafe
/*****************************************************************************/
#if !qWinOS
/*****************************************************************************/
/* Try generic POSIX compile */
#include <errno.h>
#include <pthread.h>
#define dng_pthread_disassociate()
#define dng_pthread_terminate()
/*****************************************************************************/
#else
/*****************************************************************************/
#include <stdlib.h>
#if _MSC_VER >= 1600
// Get this included so ETIMEDOUT is predefined.
#include <errno.h>
#endif
#include <time.h>
#define dng_timespec timespec
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************/
#define DNG_ETIMEDOUT 60 /* Operation timed out */
typedef unsigned long dng_pthread_t;
typedef struct dng_pthread_mutex_impl *dng_pthread_mutex_t;
typedef struct dng_pthread_cond_impl *dng_pthread_cond_t;
typedef unsigned long dng_pthread_key_t;
#define DNG_PTHREAD_MUTEX_INITIALIZER ((struct dng_pthread_mutex_impl *)-1)
#define DNG_PTHREAD_COND_INITIALIZER ((struct dng_pthread_cond_impl *)-1)
struct _dng_pthread_once_t {
int inited;
long semaphore;
};
typedef struct _dng_pthread_once_t dng_pthread_once_t;
#define DNG_PTHREAD_ONCE_INIT { 0, -1 }
#define dng_pthread_equal(t1, t2) ((t1) == (t2))
typedef struct dng_pthread_attr_impl *dng_pthread_attr_t;
int dng_pthread_attr_init(dng_pthread_attr_t *attr);
int dng_pthread_attr_destroy(dng_pthread_attr_t *attr);
int dng_pthread_attr_setstacksize(dng_pthread_attr_t *attr, size_t stacksize);
int dng_pthread_attr_getstacksize(const dng_pthread_attr_t *attr, size_t *stacksize);
int dng_pthread_create(dng_pthread_t *thread, const dng_pthread_attr_t * /* attrs */, void * (*func)(void *), void *arg);
int dng_pthread_detach(dng_pthread_t thread);
int dng_pthread_join(dng_pthread_t thread, void **result);
dng_pthread_t dng_pthread_self();
void dng_pthread_exit(void *result);
#define DNG_PTHREAD_MUTEX_RECURSIVE 0
typedef unsigned long dng_pthread_mutexattr_t;
int dng_pthread_mutexattr_init(dng_pthread_mutexattr_t *mutexattr);
int dng_pthread_mutexattr_settype(dng_pthread_mutexattr_t *mutexattr, int /*the options*/);
int dng_pthread_mutex_init(dng_pthread_mutex_t *mutex, void * /* attrs */);
int dng_pthread_mutex_destroy(dng_pthread_mutex_t *mutex);
int dng_pthread_mutex_lock(dng_pthread_mutex_t *mutex);
int dng_pthread_mutex_unlock(dng_pthread_mutex_t *mutex);
int dng_pthread_cond_init(dng_pthread_cond_t *cond, void * /* attrs */);
int dng_pthread_cond_destroy(dng_pthread_cond_t *cond);
int dng_pthread_cond_wait(dng_pthread_cond_t *cond, dng_pthread_mutex_t *mutex);
int dng_pthread_cond_timedwait(dng_pthread_cond_t *cond, dng_pthread_mutex_t *mutex, struct dng_timespec *latest_time);
int dng_pthread_cond_signal(dng_pthread_cond_t *cond);
int dng_pthread_cond_broadcast(dng_pthread_cond_t *cond);
int dng_pthread_once(dng_pthread_once_t *once, void (*init_func)());
int dng_pthread_key_create(dng_pthread_key_t * key, void (*destructor) (void *));
int dng_pthread_key_delete(dng_pthread_key_t key);
int dng_pthread_setspecific(dng_pthread_key_t key, const void *value);
void *dng_pthread_getspecific(dng_pthread_key_t key);
typedef struct dng_pthread_rwlock_impl *dng_pthread_rwlock_t;
typedef void *pthread_rwlockattr_t;
int dng_pthread_rwlock_destroy(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_init(dng_pthread_rwlock_t * rwlock, const pthread_rwlockattr_t * attrs);
int dng_pthread_rwlock_rdlock(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_tryrdlock(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_trywrlock(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_unlock(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_wrlock(dng_pthread_rwlock_t * rwlock);
typedef struct dng_pthread_rwlock_impl *dng_pthread_rwlock_t;
typedef void *pthread_rwlockattr_t;
int dng_pthread_rwlock_destroy(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_init(dng_pthread_rwlock_t * rwlock, const pthread_rwlockattr_t * attrs);
int dng_pthread_rwlock_rdlock(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_tryrdlock(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_trywrlock(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_unlock(dng_pthread_rwlock_t * rwlock);
int dng_pthread_rwlock_wrlock(dng_pthread_rwlock_t * rwlock);
// dng_pthread may maintain per-thread global state. This routine frees that global state.
// there is no need to call this for threads created by dng_pthread and one can call
// dng_pthread routines of a thread after dng_pthread_disassociate as the global state will
// be recreated as necessary. However dng_pthread_disassociate will need to be called again
// and there is a slight performance cost. Do not call this routine while holding a mutex, etc.
void dng_pthread_disassociate();
void dng_pthread_terminate();
/*****************************************************************************/
// Map symbols back to plain pthread names. This whole mechanism is so the DNG pthreads library
// symbols do not collide with another pthread emulation library
// that may be in use in the same linked entity. However if that is the case, it would be far better
// to have the DNG code use the same pthread library as the rest of the code.
#define pthread_t dng_pthread_t
#define pthread_mutex_t dng_pthread_mutex_t
#define pthread_cond_t dng_pthread_cond_t
#define pthread_once_t dng_pthread_once_t
#define pthread_key_t dng_pthread_key_t
#undef PTHREAD_MUTEX_INITIALIZER
#define PTHREAD_MUTEX_INITIALIZER DNG_PTHREAD_MUTEX_INITIALIZER
#undef PTHREAD_COND_INITIALIZER
#define PTHREAD_COND_INITIALIZER DNG_PTHREAD_COND_INITIALIZER
#undef PTHREAD_ONCE_INIT
#define PTHREAD_ONCE_INIT DNG_PTHREAD_ONCE_INIT
/* If it is defined on Windows, it probably has the wrong value... */
#if defined(WIN32) || !defined(ETIMEDOUT)
#undef ETIMEDOUT
#define ETIMEDOUT DNG_ETIMEDOUT
#endif
#define pthread_equal dng_pthread_equal
#define pthread_attr_t dng_pthread_attr_t
#define pthread_attr_init dng_pthread_attr_init
#define pthread_attr_destroy dng_pthread_attr_destroy
#define pthread_attr_setstacksize dng_pthread_attr_setstacksize
#define pthread_attr_getstacksize dng_pthread_attr_getstacksize
#define pthread_create dng_pthread_create
#define pthread_detach dng_pthread_detach
#define pthread_join dng_pthread_join
#define pthread_self dng_pthread_self
#define pthread_exit dng_pthread_exit
#define pthread_mutex_init dng_pthread_mutex_init
#define pthread_mutex_destroy dng_pthread_mutex_destroy
#define pthread_mutex_lock dng_pthread_mutex_lock
#define pthread_mutex_unlock dng_pthread_mutex_unlock
#define pthread_cond_init dng_pthread_cond_init
#define pthread_cond_destroy dng_pthread_cond_destroy
#define pthread_cond_wait dng_pthread_cond_wait
#define pthread_cond_timedwait dng_pthread_cond_timedwait
#define pthread_cond_signal dng_pthread_cond_signal
#define pthread_cond_broadcast dng_pthread_cond_broadcast
#define pthread_once dng_pthread_once
#define pthread_key_create dng_pthread_key_create
#define pthread_key_delete dng_pthread_key_delete
#define pthread_setspecific dng_pthread_setspecific
#define pthread_getspecific dng_pthread_getspecific
#define pthread_rwlock_t dng_pthread_rwlock_t
#define pthread_rwlock_destroy dng_pthread_rwlock_destroy
#define pthread_rwlock_init dng_pthread_rwlock_init
#define pthread_rwlock_rdlock dng_pthread_rwlock_rdlock
#define pthread_rwlock_tryrdlock dng_pthread_rwlock_tryrdlock
#define pthread_rwlock_trywrlock dng_pthread_rwlock_trywrlock
#define pthread_rwlock_unlock dng_pthread_rwlock_unlock
#define pthread_rwlock_wrlock dng_pthread_rwlock_wrlock
/*****************************************************************************/
#ifdef __cplusplus
}
#endif
/*****************************************************************************/
#endif
/*****************************************************************************/
#ifdef __cplusplus
extern "C"
{
#endif
int dng_pthread_now (struct timespec *now);
#ifdef __cplusplus
}
#endif
/*****************************************************************************/
#endif // qDNGThreadSafe
/*****************************************************************************/
#endif
/*****************************************************************************/