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