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/**************************************************************************/
/*  thread_posix.cpp                                                      */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* Permission is hereby granted, free of charge, to any person obtaining  */
/* a copy of this software and associated documentation files (the        */
/* "Software"), to deal in the Software without restriction, including    */
/* without limitation the rights to use, copy, modify, merge, publish,    */
/* distribute, sublicense, and/or sell copies of the Software, and to     */
/* permit persons to whom the Software is furnished to do so, subject to  */
/* the following conditions:                                              */
/*                                                                        */
/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */
/*                                                                        */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
/**************************************************************************/

#if defined(UNIX_ENABLED)

#include "thread_posix.h"

#include "core/os/thread.h"
#include "core/string/ustring.h"

#ifdef PTHREAD_BSD_SET_NAME
#include <pthread_np.h>
#endif

static Error set_name(const String &p_name) {
#ifdef PTHREAD_NO_RENAME
	return ERR_UNAVAILABLE;

#else

#ifdef PTHREAD_RENAME_SELF

	// check if thread is the same as caller
	int err = pthread_setname_np(p_name.utf8().get_data());

#else

	pthread_t running_thread = pthread_self();
#ifdef PTHREAD_BSD_SET_NAME
	pthread_set_name_np(running_thread, p_name.utf8().get_data());
	int err = 0; // Open/FreeBSD ignore errors in this function<--- 'err' is assigned value '0' here.
#elif defined(PTHREAD_NETBSD_SET_NAME)
	int err = pthread_setname_np(running_thread, "%s", const_cast<char *>(p_name.utf8().get_data()));
#else
	int err = pthread_setname_np(running_thread, p_name.utf8().get_data());
#endif // PTHREAD_BSD_SET_NAME

#endif // PTHREAD_RENAME_SELF

	return err == 0 ? OK : ERR_INVALID_PARAMETER;

#endif // PTHREAD_NO_RENAME
}

void init_thread_posix() {
	Thread::_set_platform_functions({ .set_name = set_name });
}

#endif // UNIX_ENABLED