* The pthread_thread structure is now allocated for all threads.

* Therefore, all pthread functions should now work fine on all threads.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33967 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/libroot/pthread_private.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2003-2008, Axel Dörfler, axeld@pinc-software.de.
+ * Copyright 2003-2009, Axel Dörfler, axeld@pinc-software.de.
  * Copyright 2007, Ryan Leavengood, leavengood@gmail.com.
  * All rights reserved. Distributed under the terms of the MIT License.
  */
@@ -60,7 +60,6 @@ typedef struct _pthread_thread {
 	bool		cancelled;
 	struct pthread_key_data specific[PTHREAD_KEYS_MAX];
 	struct __pthread_cleanup_handler *cleanup_handlers;
-	// TODO: move pthread keys in here, too
 } pthread_thread;
 
 
@@ -69,6 +68,8 @@ extern "C" {
 #endif
 
 void __pthread_key_call_destructors(pthread_thread *thread);
+void __pthread_destroy_thread(void);
+pthread_thread *__allocate_pthread(void *data);
 
 #ifdef __cplusplus
 }

headers/private/system/tls.h

@@ -1,10 +1,11 @@
-/* 
-** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
-** Distributed under the terms of the OpenBeOS License.
-*/
+/*
+ * Copyright 2003-2009, Axel Dörfler, axeld@pinc-software.de.
+ * Distributed under the terms of the MIT License.
+ */
 #ifndef _KERNEL_TLS_H
 #define _KERNEL_TLS_H
 
+
 #include <support/TLS.h>
 
 
@@ -18,6 +19,7 @@ enum {
 	TLS_ERRNO_SLOT,
 	TLS_ON_EXIT_THREAD_SLOT,
 	TLS_USER_THREAD_SLOT,
+	TLS_PTHREAD_SLOT,
 
 	// Note: these entries can safely be changed between
 	// releases; 3rd party code always calls tls_allocate()

src/system/libroot/os/thread.c

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+ * Copyright 2002-2009, Axel Dörfler, axeld@pinc-software.de.
  * Distributed under the terms of the MIT License.
  */
 
@@ -10,6 +10,7 @@
 #include <stdio.h>
 
 #include <libroot_private.h>
+#include <pthread_private.h>
 #include <thread_defs.h>
 #include <tls.h>
 #include <syscalls.h>
@@ -29,10 +30,15 @@ typedef struct callback_node {
 void _thread_do_exit_notification(void);
 
 
-static int32
-thread_entry(thread_func entry, void *data)
+static status_t
+thread_entry(thread_func entry, void* _thread)
 {
-	int32 returnCode = entry(data);
+	pthread_thread* thread = (pthread_thread*)_thread;
+	status_t returnCode;
+
+	*tls_address(TLS_PTHREAD_SLOT) = thread;
+
+	returnCode = entry(thread->entry_argument);
 
 	_thread_do_exit_notification();
 
@@ -40,10 +46,39 @@ thread_entry(thread_func entry, void *data)
 }
 
 
+void
+_thread_do_exit_notification(void)
+{
+	callback_node *node = tls_get(TLS_ON_EXIT_THREAD_SLOT);
+	callback_node *next;
+
+	while (node != NULL) {
+		next = node->next;
+
+		node->function(node->argument);
+		free(node);
+
+		node = next;
+	}
+
+	tls_set(TLS_ON_EXIT_THREAD_SLOT, NULL);
+
+	__pthread_destroy_thread();
+}
+
+
+// #pragma mark -
+
+
 thread_id
 spawn_thread(thread_func entry, const char *name, int32 priority, void *data)
 {
 	struct thread_creation_attributes attributes;
+	pthread_thread* thread;
+
+	thread = __allocate_pthread(data);
+	if (thread == NULL)
+		return B_NO_MEMORY;
 
 	_single_threaded = false;
 		// used for I/O locking - BeOS compatibility issue
@@ -52,7 +87,7 @@ spawn_thread(thread_func entry, const char *name, int32 priority, void *data)
 	attributes.name = name;
 	attributes.priority = priority;
 	attributes.args1 = entry;
-	attributes.args2 = data;
+	attributes.args2 = thread;
 	attributes.stack_address = NULL;
 	attributes.stack_size = 0;
 
@@ -110,25 +145,6 @@ wait_for_thread(thread_id thread, status_t *_returnCode)
 }
 
 
-void
-_thread_do_exit_notification(void)
-{
-	callback_node *node = tls_get(TLS_ON_EXIT_THREAD_SLOT);
-	callback_node *next;
-
-	while (node != NULL) {
-		next = node->next;
-
-		node->function(node->argument);
-		free(node);
-
-		node = next;
-	}
-
-	tls_set(TLS_ON_EXIT_THREAD_SLOT, NULL);
-}
-
-
 status_t
 on_exit_thread(void (*callback)(void *), void *data)
 {

src/system/libroot/posix/pthread/pthread.c

@@ -14,6 +14,7 @@
 
 #include <syscalls.h>
 #include <thread_defs.h>
+#include <tls.h>
 
 
 #define THREAD_DETACHED	0x01
@@ -28,12 +29,27 @@ static const pthread_attr pthread_attr_default = {
 
 
 static pthread_thread sMainThread;
-static int32 sPthreadSlot = -1;
 static int sConcurrencyLevel;
 
 
-static void
-pthread_destroy_thread(void* data)
+static status_t
+pthread_thread_entry(thread_func _unused, void* _thread)
+{
+	pthread_thread* thread = (pthread_thread*)_thread;
+
+	// store thread data in TLS
+	*tls_address(TLS_PTHREAD_SLOT) = thread;
+
+	pthread_exit(thread->entry(thread->entry_argument));
+	return 0;
+}
+
+
+// #pragma mark - private API
+
+
+void
+__pthread_destroy_thread(void)
 {
 	pthread_thread* thread = pthread_self();
 
@@ -54,18 +70,23 @@ pthread_destroy_thread(void* data)
 }
 
 
-static int32
-pthread_thread_entry(thread_func _unused, void* _thread)
+pthread_thread*
+__allocate_pthread(void *data)
 {
-	pthread_thread* thread = (pthread_thread*)_thread;
+	pthread_thread* thread = (pthread_thread*)malloc(sizeof(pthread_thread));
+	if (thread == NULL)
+		return NULL;
 
-	// store thread data in TLS
-	*tls_address(sPthreadSlot) = thread;
+	thread->entry = NULL;
+	thread->entry_argument = data;
+	thread->exit_value = NULL;
+	thread->cancel_state = PTHREAD_CANCEL_ENABLE;
+	thread->cancel_type = PTHREAD_CANCEL_DEFERRED;
+	thread->cancelled = false;
+	thread->cleanup_handlers = NULL;
+	thread->flags = 0;
 
-	on_exit_thread(pthread_destroy_thread, NULL);
-
-	pthread_exit(thread->entry(thread->entry_argument));
-	return 0;
+	return thread;
 }
 
 
@@ -91,27 +112,15 @@ pthread_create(pthread_t* _thread, const pthread_attr_t* _attr,
 			return EINVAL;
 	}
 
-	thread = (pthread_thread*)malloc(sizeof(pthread_thread));
+	thread = __allocate_pthread(arg);
 	if (thread == NULL)
 		return EAGAIN;
 
 	thread->entry = startRoutine;
-	thread->entry_argument = arg;
-	thread->exit_value = NULL;
-	thread->cancel_state = PTHREAD_CANCEL_ENABLE;
-	thread->cancel_type = PTHREAD_CANCEL_DEFERRED;
-	thread->cancelled = false;
-	thread->cleanup_handlers = NULL;
-	thread->flags = 0;
 
 	if (attr->detach_state == PTHREAD_CREATE_DETACHED)
 		thread->flags |= THREAD_DETACHED;
 
-	if (sPthreadSlot == -1) {
-		// In a clean pthread environment, this is even thread-safe!
-		sPthreadSlot = tls_allocate();
-	}
-
 	attributes.entry = pthread_thread_entry;
 	attributes.name = "pthread func";
 	attributes.priority = attr->sched_priority;
@@ -139,10 +148,7 @@ pthread_self(void)
 {
 	pthread_thread* thread;
 
-	if (sPthreadSlot == -1)
-		return &sMainThread;
-
-	thread = (pthread_thread*)tls_get(sPthreadSlot);
+	thread = (pthread_thread*)tls_get(TLS_PTHREAD_SLOT);
 	if (thread == NULL)
 		return &sMainThread;