/*************************************************************************/
/*  thread_posix.cpp                                                     */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
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#if defined(UNIX_ENABLED) || defined(PTHREAD_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
#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_funcs(&set_name, nullptr);
}

#endif // UNIX_ENABLED || PTHREAD_ENABLED