#ifndef GCC_GTHR_WIN32_H
#define GCC_GTHR_WIN32_H
#define __GTHREADS 1
#include <errno.h>
#ifdef __MINGW32__
#include <_mingw.h>
#endif
#ifdef _LIBOBJC
#ifndef __OBJC__
#define __OBJC__
#endif
#include <windows.h>
#undef BOOL
static DWORD __gthread_objc_data_tls = (DWORD) -1;
int
__gthread_objc_init_thread_system (void)
{
if ((__gthread_objc_data_tls = TlsAlloc ()) != (DWORD) -1)
return 0;
else
return -1;
}
int
__gthread_objc_close_thread_system (void)
{
if (__gthread_objc_data_tls != (DWORD) -1)
TlsFree (__gthread_objc_data_tls);
return 0;
}
objc_thread_t
__gthread_objc_thread_detach (void (*func)(void *arg), void *arg)
{
DWORD thread_id = 0;
HANDLE win32_handle;
if (!(win32_handle = CreateThread (NULL, 0, (LPTHREAD_START_ROUTINE) func,
arg, 0, &thread_id)))
thread_id = 0;
return (objc_thread_t) thread_id;
}
int
__gthread_objc_thread_set_priority (int priority)
{
int sys_priority = 0;
switch (priority)
{
case OBJC_THREAD_INTERACTIVE_PRIORITY:
sys_priority = THREAD_PRIORITY_NORMAL;
break;
default:
case OBJC_THREAD_BACKGROUND_PRIORITY:
sys_priority = THREAD_PRIORITY_BELOW_NORMAL;
break;
case OBJC_THREAD_LOW_PRIORITY:
sys_priority = THREAD_PRIORITY_LOWEST;
break;
}
if (SetThreadPriority (GetCurrentThread (), sys_priority))
return 0;
else
return -1;
}
int
__gthread_objc_thread_get_priority (void)
{
int sys_priority;
sys_priority = GetThreadPriority (GetCurrentThread ());
switch (sys_priority)
{
case THREAD_PRIORITY_HIGHEST:
case THREAD_PRIORITY_TIME_CRITICAL:
case THREAD_PRIORITY_ABOVE_NORMAL:
case THREAD_PRIORITY_NORMAL:
return OBJC_THREAD_INTERACTIVE_PRIORITY;
default:
case THREAD_PRIORITY_BELOW_NORMAL:
return OBJC_THREAD_BACKGROUND_PRIORITY;
case THREAD_PRIORITY_IDLE:
case THREAD_PRIORITY_LOWEST:
return OBJC_THREAD_LOW_PRIORITY;
}
return -1;
}
void
__gthread_objc_thread_yield (void)
{
Sleep (0);
}
int
__gthread_objc_thread_exit (void)
{
ExitThread (__objc_thread_exit_status);
return -1;
}
objc_thread_t
__gthread_objc_thread_id (void)
{
return (objc_thread_t) GetCurrentThreadId ();
}
int
__gthread_objc_thread_set_data (void *value)
{
if (TlsSetValue (__gthread_objc_data_tls, value))
return 0;
else
return -1;
}
void *
__gthread_objc_thread_get_data (void)
{
DWORD lasterror;
void *ptr;
lasterror = GetLastError ();
ptr = TlsGetValue (__gthread_objc_data_tls);
SetLastError (lasterror);
return ptr;
}
int
__gthread_objc_mutex_allocate (objc_mutex_t mutex)
{
if ((mutex->backend = (void *) CreateMutex (NULL, 0, NULL)) == NULL)
return -1;
else
return 0;
}
int
__gthread_objc_mutex_deallocate (objc_mutex_t mutex)
{
CloseHandle ((HANDLE) (mutex->backend));
return 0;
}
int
__gthread_objc_mutex_lock (objc_mutex_t mutex)
{
int status;
status = WaitForSingleObject ((HANDLE) (mutex->backend), INFINITE);
if (status != WAIT_OBJECT_0 && status != WAIT_ABANDONED)
return -1;
else
return 0;
}
int
__gthread_objc_mutex_trylock (objc_mutex_t mutex)
{
int status;
status = WaitForSingleObject ((HANDLE) (mutex->backend), 0);
if (status != WAIT_OBJECT_0 && status != WAIT_ABANDONED)
return -1;
else
return 0;
}
int
__gthread_objc_mutex_unlock (objc_mutex_t mutex)
{
if (ReleaseMutex ((HANDLE) (mutex->backend)) == 0)
return -1;
else
return 0;
}
int
__gthread_objc_condition_allocate (objc_condition_t condition)
{
return -1;
}
int
__gthread_objc_condition_deallocate (objc_condition_t condition)
{
return -1;
}
int
__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex)
{
return -1;
}
int
__gthread_objc_condition_broadcast (objc_condition_t condition)
{
return -1;
}
int
__gthread_objc_condition_signal (objc_condition_t condition)
{
return -1;
}
#else
#ifdef __cplusplus
extern "C" {
#endif
typedef unsigned long __gthread_key_t;
typedef struct {
int done;
long started;
} __gthread_once_t;
typedef void* __gthread_mutex_t;
#define __GTHREAD_ONCE_INIT {0, -1}
#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
#define __GTHREAD_MUTEX_INIT_DEFAULT 0
#if __MINGW32_MAJOR_VERSION >= 1 || \
(__MINGW32_MAJOR_VERSION == 0 && __MINGW32_MINOR_VERSION > 2)
#define MINGW32_SUPPORTS_MT_EH 1
extern int _CRT_MT;
extern int __mingwthr_key_dtor (unsigned long, void (*) (void *));
#endif
static inline int
__gthread_active_p (void)
{
#ifdef MINGW32_SUPPORTS_MT_EH
return _CRT_MT;
#else
return 1;
#endif
}
#ifdef __GTHREAD_HIDE_WIN32API
extern int __gthr_win32_once (__gthread_once_t *, void (*) (void));
extern int __gthr_win32_key_create (__gthread_key_t *, void (*) (void*));
extern int __gthr_win32_key_delete (__gthread_key_t);
extern void * __gthr_win32_getspecific (__gthread_key_t);
extern int __gthr_win32_setspecific (__gthread_key_t, const void *);
extern void __gthr_win32_mutex_init_function (__gthread_mutex_t *);
extern int __gthr_win32_mutex_lock (__gthread_mutex_t *);
extern int __gthr_win32_mutex_trylock (__gthread_mutex_t *);
extern int __gthr_win32_mutex_unlock (__gthread_mutex_t *);
static inline int
__gthread_once (__gthread_once_t *once, void (*func) (void))
{
if (__gthread_active_p ())
return __gthr_win32_once (once, func);
else
return -1;
}
static inline int
__gthread_key_create (__gthread_key_t *key, void (*dtor) (void *))
{
return __gthr_win32_key_create (key, dtor);
}
static inline int
__gthread_key_dtor (__gthread_key_t key, void *ptr)
{
return 0;
}
static inline int
__gthread_key_delete (__gthread_key_t key)
{
return __gthr_win32_key_delete (key);
}
static inline void *
__gthread_getspecific (__gthread_key_t key)
{
return __gthr_win32_getspecific (key);
}
static inline int
__gthread_setspecific (__gthread_key_t key, const void *ptr)
{
return __gthr_win32_setspecific (key, ptr);
}
static inline void
__gthread_mutex_init_function (__gthread_mutex_t *mutex)
{
__gthr_win32_mutex_init_function (mutex);
}
static inline int
__gthread_mutex_lock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
return __gthr_win32_mutex_lock (mutex);
else
return 0;
}
static inline int
__gthread_mutex_trylock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
return __gthr_win32_mutex_trylock (mutex);
else
return 0;
}
static inline int
__gthread_mutex_unlock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
return __gthr_win32_mutex_unlock (mutex);
else
return 0;
}
#else
#include <windows.h>
#include <errno.h>
static inline int
__gthread_once (__gthread_once_t *once, void (*func) (void))
{
if (! __gthread_active_p ())
return -1;
else if (once == NULL || func == NULL)
return EINVAL;
if (! once->done)
{
if (InterlockedIncrement (&(once->started)) == 0)
{
(*func) ();
once->done = TRUE;
}
else
{
while (! once->done)
Sleep (0);
}
}
return 0;
}
static inline int
__gthread_key_create (__gthread_key_t *key, void (*dtor) (void *))
{
int status = 0;
DWORD tls_index = TlsAlloc ();
if (tls_index != 0xFFFFFFFF)
{
*key = tls_index;
#ifdef MINGW32_SUPPORTS_MT_EH
status = __mingwthr_key_dtor (*key, dtor);
#endif
}
else
status = (int) GetLastError ();
return status;
}
static inline int
__gthread_key_dtor (__gthread_key_t key, void *ptr)
{
return 0;
}
static inline int
__gthread_key_delete (__gthread_key_t key)
{
return (TlsFree (key) != 0) ? 0 : (int) GetLastError ();
}
static inline void *
__gthread_getspecific (__gthread_key_t key)
{
DWORD lasterror;
void *ptr;
lasterror = GetLastError ();
ptr = TlsGetValue (key);
SetLastError (lasterror);
return ptr;
}
static inline int
__gthread_setspecific (__gthread_key_t key, const void *ptr)
{
return (TlsSetValue (key, (void*) ptr) != 0) ? 0 : (int) GetLastError ();
}
static inline void
__gthread_mutex_init_function (__gthread_mutex_t *mutex)
{
*mutex = CreateMutex (NULL, 0, NULL);
}
static inline int
__gthread_mutex_lock (__gthread_mutex_t *mutex)
{
int status = 0;
if (__gthread_active_p ())
{
if (WaitForSingleObject (*mutex, INFINITE) == WAIT_OBJECT_0)
status = 0;
else
status = 1;
}
return status;
}
static inline int
__gthread_mutex_trylock (__gthread_mutex_t *mutex)
{
int status = 0;
if (__gthread_active_p ())
{
if (WaitForSingleObject (*mutex, 0) == WAIT_OBJECT_0)
status = 0;
else
status = 1;
}
return status;
}
static inline int
__gthread_mutex_unlock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
return (ReleaseMutex (*mutex) != 0) ? 0 : 1;
else
return 0;
}
#endif
#ifdef __cplusplus
}
#endif
#endif
#endif