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*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#import "objfw-defs.h"
#include "objfw-defs.h"
#include "platform.h"
#if !defined(OF_HAVE_THREADS) || \
(!defined(OF_HAVE_PTHREADS) && !defined(_WIN32))
(!defined(OF_HAVE_PTHREADS) && !defined(OF_WINDOWS))
# error No threads available!
#endif
#include <math.h>
#import "OFObject.h"
#if defined(OF_HAVE_PTHREADS)
# include <pthread.h>
# include <sched.h>
typedef pthread_t of_thread_t;
typedef pthread_key_t of_tlskey_t;
typedef pthread_mutex_t of_mutex_t;
typedef pthread_cond_t of_condition_t;
typedef pthread_once_t of_once_t;
# define OF_ONCE_INIT PTHREAD_ONCE_INIT
#elif defined(_WIN32)
#elif defined(OF_WINDOWS)
/*
* winsock2.h needs to be included before windows.h. Not including it here
* would make it impossible to use sockets after threading.h has been
* imported.
*/
# ifdef OF_HAVE_SOCKETS
# include <winsock2.h>
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typedef of_mutex_t of_spinlock_t;
#endif
#ifdef OF_HAVE_SCHED_YIELD
# include <sched.h>
#endif
#if defined(OF_HAVE_RECURSIVE_PTHREAD_MUTEXES) || defined(_WIN32)
#if defined(OF_HAVE_RECURSIVE_PTHREAD_MUTEXES) || defined(OF_WINDOWS)
# define of_rmutex_t of_mutex_t
#else
typedef struct {
of_mutex_t mutex;
of_tlskey_t count;
} of_rmutex_t;
#endif
typedef struct of_thread_attr_t {
float priority;
size_t stackSize;
} of_thread_attr_t;
#if defined(OF_HAVE_PTHREADS)
# define of_thread_is_current(t) pthread_equal(t, pthread_self())
# define of_thread_current pthread_self
#elif defined(_WIN32)
#elif defined(OF_WINDOWS)
# define of_thread_is_current(t) (t == GetCurrentThread())
# define of_thread_current GetCurrentThread
#else
# error of_thread_is_current not implemented!
# error of_thread_current not implemented!
#endif
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/* TLS keys and spinlocks are inlined for performance. */
static OF_INLINE bool
of_tlskey_new(of_tlskey_t *key)
{
#if defined(OF_HAVE_PTHREADS)
return !pthread_key_create(key, NULL);
#elif defined(_WIN32)
#elif defined(OF_WINDOWS)
return ((*key = TlsAlloc()) != TLS_OUT_OF_INDEXES);
#else
# error of_tlskey_new not implemented!
#endif
}
static OF_INLINE void*
of_tlskey_get(of_tlskey_t key)
{
#if defined(OF_HAVE_PTHREADS)
return pthread_getspecific(key);
#elif defined(_WIN32)
#elif defined(OF_WINDOWS)
return TlsGetValue(key);
#else
# error of_tlskey_get not implemented!
#endif
}
static OF_INLINE bool
of_tlskey_set(of_tlskey_t key, void *ptr)
{
#if defined(OF_HAVE_PTHREADS)
return !pthread_setspecific(key, ptr);
#elif defined(_WIN32)
#elif defined(OF_WINDOWS)
return TlsSetValue(key, ptr);
#else
# error of_tlskey_set not implemented!
#endif
}
static OF_INLINE bool
of_tlskey_free(of_tlskey_t key)
{
#if defined(OF_HAVE_PTHREADS)
return !pthread_key_delete(key);
#elif defined(_WIN32)
#elif defined(OF_WINDOWS)
return TlsFree(key);
#else
# error of_tlskey_free not implemented!
#endif
}
static OF_INLINE bool
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#endif
}
static OF_INLINE bool
of_spinlock_lock(of_spinlock_t *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
# if defined(OF_HAVE_SCHED_YIELD) || defined(_WIN32)
# if defined(OF_HAVE_SCHED_YIELD) || defined(OF_WINDOWS)
int i;
for (i = 0; i < OF_SPINCOUNT; i++)
if (of_spinlock_trylock(spinlock))
return true;
while (!of_spinlock_trylock(spinlock))
# ifndef _WIN32
# ifndef OF_WINDOWS
sched_yield();
# else
Sleep(0);
# endif
# else
while (!of_spinlock_trylock(spinlock));
# endif
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