/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* 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.
*/
#include "config.h"
#import "macros.h"
bool
of_thread_attr_init(of_thread_attr_t *attr)
{
attr->priority =
(float)(THREAD_PRIORITY_NORMAL - THREAD_PRIORITY_LOWEST) /
(THREAD_PRIORITY_HIGHEST - THREAD_PRIORITY_LOWEST);
attr->stackSize = 0;
return true;
}
bool
of_thread_new(of_thread_t *thread, void (*function)(id), id object,
const of_thread_attr_t *attr)
{
size_t stackSize = 0;
int priority = 0;
if (attr != NULL) {
if (attr->priority < 0 || attr->priority > 1)
return false;
priority = THREAD_PRIORITY_LOWEST + attr->priority *
(THREAD_PRIORITY_HIGHEST - THREAD_PRIORITY_LOWEST);
stackSize = attr->stackSize;
}
*thread = CreateThread(NULL, stackSize,
(LPTHREAD_START_ROUTINE)function, (__bridge void*)object, 0, NULL);
if (thread == NULL)
return false;
if (priority > 0)
return SetThreadPriority(*thread, priority);
else
return true;
}
bool
of_thread_join(of_thread_t thread)
{
if (WaitForSingleObject(thread, INFINITE))
return false;
CloseHandle(thread);
return true;
}
bool
of_thread_detach(of_thread_t thread)
{
/* FIXME */
return true;
}
void OF_NO_RETURN_FUNC
of_thread_exit(void)
{
ExitThread(0);
OF_UNREACHABLE
}
void
of_thread_set_name(of_thread_t thread, const char *name)
{
}
void
of_once(of_once_t *control, void (*func)(void))
{
switch (InterlockedCompareExchange(control, 1, 0)) {
case 0:
func();
InterlockedIncrement(control);
break;
case 1:
while (*control == 1)
Sleep(0);
break;
}
}
bool
of_mutex_new(of_mutex_t *mutex)
{
InitializeCriticalSection(mutex);
return true;
}
bool
of_mutex_lock(of_mutex_t *mutex)
{
EnterCriticalSection(mutex);
return true;
}
bool
of_mutex_trylock(of_mutex_t *mutex)
{
return TryEnterCriticalSection(mutex);
}
bool
of_mutex_unlock(of_mutex_t *mutex)
{
LeaveCriticalSection(mutex);
return true;
}
bool
of_mutex_free(of_mutex_t *mutex)
{
DeleteCriticalSection(mutex);
return true;
}
bool
of_condition_new(of_condition_t *condition)
{
condition->count = 0;
if ((condition->event = CreateEvent(NULL, FALSE, 0, NULL)) == NULL)
return false;
return true;
}
bool
of_condition_signal(of_condition_t *condition)
{
return SetEvent(condition->event);
}
bool
of_condition_broadcast(of_condition_t *condition)
{
for (int i = 0; i < condition->count; i++)
if (!SetEvent(condition->event))
return false;
return true;
}
bool
of_condition_wait(of_condition_t *condition, of_mutex_t *mutex)
{
if (!of_mutex_unlock(mutex))
return false;
of_atomic_int_inc(&condition->count);
if (WaitForSingleObject(condition->event, INFINITE) != WAIT_OBJECT_0) {
of_mutex_lock(mutex);
return false;
}
of_atomic_int_dec(&condition->count);
if (!of_mutex_lock(mutex))
return false;
return true;
}
bool
of_condition_timed_wait(of_condition_t *condition, of_mutex_t *mutex,
of_time_interval_t timeout)
{
if (!of_mutex_unlock(mutex))
return false;
of_atomic_int_inc(&condition->count);
if (WaitForSingleObject(condition->event, timeout * 1000) !=
WAIT_OBJECT_0) {
of_mutex_lock(mutex);
return false;
}
of_atomic_int_dec(&condition->count);
if (!of_mutex_lock(mutex))
return false;
return true;
}
bool
of_condition_free(of_condition_t *condition)
{
if (condition->count != 0)
return false;
return CloseHandle(condition->event);
}