/*
* Copyright (c) 2008, 2009, 2010, 2011
* Jonathan Schleifer <js@webkeks.org>
*
* 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"
#define __NO_EXT_QNX
#ifndef _WIN32
# include <unistd.h>
# include <sched.h>
#else
# include <windows.h>
#endif
#if defined(OF_GNU_RUNTIME) || defined(OF_OLD_GNU_RUNTIME)
# import <objc/thr.h>
#endif
#import "OFThread.h"
#import "OFList.h"
#import "OFDate.h"
#import "OFAutoreleasePool.h"
#import "OFConditionBroadcastFailedException.h"
#import "OFConditionSignalFailedException.h"
#import "OFConditionStillWaitingException.h"
#import "OFConditionWaitFailedException.h"
#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFMutexLockFailedException.h"
#import "OFMutexStillLockedException.h"
#import "OFMutexUnlockFailedException.h"
#import "OFNotImplementedException.h"
#import "OFOutOfRangeException.h"
#import "OFThreadJoinFailedException.h"
#import "OFThreadStartFailedException.h"
#import "OFThreadStillRunningException.h"
#import "threading.h"
static OFList *TLSKeys;
static of_tlskey_t threadSelf;
static id
call_main(id object)
{
OFThread *thread = (OFThread*)object;
#if defined(OF_GNU_RUNTIME) || defined(OF_OLD_GNU_RUNTIME)
objc_thread_add();
#endif
if (!of_tlskey_set(threadSelf, thread))
@throw [OFInitializationFailedException
newWithClass: [thread class]];
/*
* Nasty workaround for thread implementations which can't return a
* value on join.
*/
#ifdef OF_HAVE_BLOCKS
if (thread->block != NULL)
thread->returnValue = [thread->block(thread->object) retain];
else
thread->returnValue = [[thread main] retain];
#else
thread->returnValue = [[thread main] retain];
#endif
[thread handleTermination];
thread->running = OF_THREAD_WAITING_FOR_JOIN;
[OFTLSKey callAllDestructors];
[OFAutoreleasePool releaseAll];
[thread release];
#if defined(OF_GNU_RUNTIME) || defined(OF_OLD_GNU_RUNTIME)
objc_thread_remove();
#endif
return 0;
}
@implementation OFThread
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
@synthesize block;
#endif
+ (void)initialize
{
if (self != [OFThread class])
return;
if (!of_tlskey_new(&threadSelf))
@throw [OFInitializationFailedException newWithClass: self];
}
+ thread
{
return [[[self alloc] init] autorelease];
}
+ threadWithObject: (id)object
{
return [[[self alloc] initWithObject: object] autorelease];
}
#ifdef OF_HAVE_BLOCKS
+ threadWithBlock: (of_thread_block_t)block
{
return [[[self alloc] initWithBlock: block] autorelease];
}
+ threadWithBlock: (of_thread_block_t)block
object: (id)object
{
return [[[self alloc] initWithBlock: block
object: object] autorelease];
}
#endif
+ (void)setObject: (id)object
forTLSKey: (OFTLSKey*)key
{
id oldObject = of_tlskey_get(key->key);
if (!of_tlskey_set(key->key, [object retain]))
@throw [OFInvalidArgumentException newWithClass: self
selector: _cmd];
[oldObject release];
}
+ (id)objectForTLSKey: (OFTLSKey*)key
{
return [[of_tlskey_get(key->key) retain] autorelease];
}
+ (OFThread*)currentThread
{
return [[of_tlskey_get(threadSelf) retain] autorelease];
}
+ (void)sleepForTimeInterval: (int64_t)seconds
{
if (seconds < 0)
@throw [OFOutOfRangeException newWithClass: self];
#ifndef _WIN32
if (seconds > UINT_MAX)
@throw [OFOutOfRangeException newWithClass: self];
sleep((unsigned int)seconds);
#else
if (seconds * 1000 > UINT_MAX)
@throw [OFOutOfRangeException newWithClass: self];
Sleep((unsigned int)seconds * 1000);
#endif
}
+ (void)sleepForTimeInterval: (int64_t)seconds
microseconds: (uint32_t)microseconds
{
if (seconds < 0)
@throw [OFOutOfRangeException newWithClass: self];
#ifndef _WIN32
sleep((unsigned int)seconds);
usleep(microseconds);
#else
if (seconds * 1000 + microseconds / 1000 > UINT_MAX)
@throw [OFOutOfRangeException newWithClass: self];
Sleep((unsigned int)seconds * 1000 + microseconds / 1000);
#endif
}
+ (void)sleepUntilDate: (OFDate*)date
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFDate *now = [OFDate date];
int64_t seconds;
uint32_t microseconds;
if ((seconds = [date timeIntervalSinceDate: now]) < 0)
@throw [OFOutOfRangeException newWithClass: self];
microseconds = [date microsecondsOfTimeIntervalSinceDate: now];
[pool release];
#ifndef _WIN32
if (seconds > UINT_MAX)
@throw [OFOutOfRangeException newWithClass: self];
sleep((unsigned int)seconds);
usleep(microseconds);
#else
if (seconds * 1000 + microseconds / 1000 > UINT_MAX)
@throw [OFOutOfRangeException newWithClass: self];
Sleep(seconds * 1000 + microseconds / 1000);
#endif
}
+ (void)yield
{
#ifdef OF_HAVE_SCHED_YIELD
sched_yield();
#else
[self sleepForTimeInterval: 0];
#endif
}
+ (void)terminate
{
[self terminateWithObject: nil];
}
+ (void)terminateWithObject: (id)object
{
OFThread *thread = of_tlskey_get(threadSelf);
if (thread != nil) {
thread->returnValue = [object retain];
[thread handleTermination];
thread->running = OF_THREAD_WAITING_FOR_JOIN;
}
[OFTLSKey callAllDestructors];
[OFAutoreleasePool releaseAll];
[thread release];
#if defined(OF_GNU_RUNTIME) || defined(OF_OLD_GNU_RUNTIME)
objc_thread_remove();
#endif
of_thread_exit();
}
- initWithObject: (id)object_
{
self = [super init];
@try {
object = [object_ retain];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
#ifdef OF_HAVE_BLOCKS
- initWithBlock: (of_thread_block_t)block_
{
return [self initWithBlock: block_
object: nil];
}
- initWithBlock: (of_thread_block_t)block_
object: (id)object_
{
self = [super init];
@try {
block = [block_ retain];
object = [object_ retain];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
#endif
- (id)main
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
return nil;
}
- (void)handleTermination
{
}
- (void)start
{
if (running == OF_THREAD_RUNNING)
@throw [OFThreadStillRunningException newWithClass: isa
thread: self];
if (running == OF_THREAD_WAITING_FOR_JOIN) {
of_thread_detach(thread);
[returnValue release];
}
[self retain];
if (!of_thread_new(&thread, call_main, self)) {
[self release];
@throw [OFThreadStartFailedException newWithClass: isa
thread: self];
}
running = OF_THREAD_RUNNING;
}
- (id)join
{
if (running == OF_THREAD_NOT_RUNNING || !of_thread_join(thread))
@throw [OFThreadJoinFailedException newWithClass: isa
thread: self];
running = OF_THREAD_NOT_RUNNING;
return returnValue;
}
- (void)dealloc
{
if (running == OF_THREAD_RUNNING)
@throw [OFThreadStillRunningException newWithClass: isa
thread: self];
/*
* We should not be running anymore, but call detach in order to free
* the resources.
*/
if (running == OF_THREAD_WAITING_FOR_JOIN)
of_thread_detach(thread);
[object release];
[returnValue release];
[super dealloc];
}
- (void)finalize
{
if (running == OF_THREAD_RUNNING)
@throw [OFThreadStillRunningException newWithClass: isa
thread: self];
/*
* We should not be running anymore, but call detach in order to free
* the resources.
*/
if (running == OF_THREAD_WAITING_FOR_JOIN)
of_thread_detach(thread);
[super finalize];
}
@end
@implementation OFTLSKey
+ (void)initialize
{
if (self == [OFTLSKey class])
TLSKeys = [[OFList alloc] init];
}
+ TLSKey
{
return [[[self alloc] init] autorelease];
}
+ TLSKeyWithDestructor: (void(*)(id))destructor
{
return [[[self alloc] initWithDestructor: destructor] autorelease];
}
+ (void)callAllDestructors
{
of_list_object_t *iter;
@synchronized (TLSKeys) {
for (iter = [TLSKeys firstListObject]; iter != NULL;
iter = iter->next) {
OFTLSKey *key = (OFTLSKey*)iter->object;
if (key->destructor != NULL)
key->destructor(iter->object);
}
}
}
- init
{
self = [super init];
@try {
if (!of_tlskey_new(&key))
@throw [OFInitializationFailedException
newWithClass: isa];
initialized = YES;
@synchronized (TLSKeys) {
listObject = [TLSKeys appendObject: self];
}
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithDestructor: (void(*)(id))destructor_
{
self = [self init];
destructor = destructor_;
return self;
}
- (void)dealloc
{
if (destructor != NULL)
destructor(self);
if (initialized)
of_tlskey_free(key);
/* In case we called [self release] in init */
if (listObject != NULL) {
@synchronized (TLSKeys) {
[TLSKeys removeListObject: listObject];
}
}
[super dealloc];
}
- (void)finalize
{
if (destructor != NULL)
destructor(self);
if (initialized)
of_tlskey_free(key);
/* In case we called [self release] in init */
if (listObject != NULL) {
@synchronized (TLSKeys) {
[TLSKeys removeListObject: listObject];
}
}
[super finalize];
}
@end
@implementation OFMutex
+ mutex
{
return [[[self alloc] init] autorelease];
}
- init
{
self = [super init];
if (!of_mutex_new(&mutex)) {
Class c = isa;
[self release];
@throw [OFInitializationFailedException newWithClass: c];
}
initialized = YES;
return self;
}
- (void)lock
{
if (!of_mutex_lock(&mutex))
@throw [OFMutexLockFailedException newWithClass: isa
mutex: self];
}
- (BOOL)tryLock
{
return of_mutex_trylock(&mutex);
}
- (void)unlock
{
if (!of_mutex_unlock(&mutex))
@throw [OFMutexUnlockFailedException newWithClass: isa
mutex: self];
}
- (void)dealloc
{
if (initialized)
if (!of_mutex_free(&mutex))
@throw [OFMutexStillLockedException newWithClass: isa
mutex: self];
[super dealloc];
}
- (void)finalize
{
if (initialized)
if (!of_mutex_free(&mutex))
@throw [OFMutexStillLockedException newWithClass: isa
mutex: self];
[super finalize];
}
@end
@implementation OFCondition
+ condition
{
return [[[self alloc] init] autorelease];
}
- init
{
self = [super init];
if (!of_condition_new(&condition)) {
Class c = isa;
[self release];
@throw [OFInitializationFailedException newWithClass: c];
}
conditionInitialized = YES;
return self;
}
- (void)wait
{
if (!of_condition_wait(&condition, &mutex))
@throw [OFConditionWaitFailedException newWithClass: isa
condition: self];
}
- (void)signal
{
if (!of_condition_signal(&condition))
@throw [OFConditionSignalFailedException newWithClass: isa
condition: self];
}
- (void)broadcast
{
if (!of_condition_broadcast(&condition))
@throw [OFConditionBroadcastFailedException newWithClass: isa
condition: self];
}
- (void)dealloc
{
if (conditionInitialized)
if (!of_condition_free(&condition))
@throw [OFConditionStillWaitingException
newWithClass: isa
condition: self];
[super dealloc];
}
- (void)finalize
{
if (conditionInitialized)
if (!of_condition_free(&condition))
@throw [OFConditionStillWaitingException
newWithClass: isa
condition: self];
[super finalize];
}
@end