Differential D16702 Diff 46858 head/lib/libthr/thread/thr_info.c

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head/lib/libthr/thread/thr_info.c

	/*-			/*-
	* SPDX-License-Identifier: BSD-3-Clause			* SPDX-License-Identifier: BSD-3-Clause
	*			*
	* Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>			* Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
				* Copyright (c) 2018 The FreeBSD Foundation
	* All rights reserved.			* All rights reserved.
	*			*
				* Portions of this software were developed by Konstantin Belousov
				* under sponsorship from the FreeBSD Foundation.
				*
	* Redistribution and use in source and binary forms, with or without			* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions			* modification, are permitted provided that the following conditions
	* are met:			* are met:
	* 1. Redistributions of source code must retain the above copyright			* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.			* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright			* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the			* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.			* documentation and/or other materials provided with the distribution.
	Show All 23 Lines
	#include <pthread.h>			#include <pthread.h>
	#include <pthread_np.h>			#include <pthread_np.h>
	#include "un-namespace.h"			#include "un-namespace.h"

	#include "thr_private.h"			#include "thr_private.h"

	__weak_reference(_pthread_set_name_np, pthread_set_name_np);			__weak_reference(_pthread_set_name_np, pthread_set_name_np);

				static void
				thr_set_name_np(struct pthread thread, const char name)
				{

				free(thread->name);
				thread->name = strdup(name);
				}

	/* Set the thread name for debug. */			/* Set the thread name for debug. */
	void			void
	_pthread_set_name_np(pthread_t thread, const char *name)			_pthread_set_name_np(pthread_t thread, const char *name)
	{			{
	struct pthread *curthread = _get_curthread();			struct pthread *curthread;
	int ret = 0;

				curthread = _get_curthread();
	if (curthread == thread) {			if (curthread == thread) {
	if (thr_set_name(thread->tid, name))			THR_THREAD_LOCK(curthread, thread);
	ret = errno;			thr_set_name(thread->tid, name);
				thr_set_name_np(thread, name);
				THR_THREAD_UNLOCK(curthread, thread);
	} else {			} else {
	if ((ret=_thr_find_thread(curthread, thread, 0)) == 0) {			if (_thr_find_thread(curthread, thread, 0) == 0) {
	if (thread->state != PS_DEAD) {			if (thread->state != PS_DEAD) {
	if (thr_set_name(thread->tid, name))			thr_set_name(thread->tid, name);
	ret = errno;			thr_set_name_np(thread, name);
	}			}
	THR_THREAD_UNLOCK(curthread, thread);			THR_THREAD_UNLOCK(curthread, thread);
	}			}
	}			}
	#if 0			}
	/* XXX should return error code. */
	return (ret);			static void
	#endif			thr_get_name_np(struct pthread thread, char buf, size_t len)
				{

				if (thread->name != NULL)
				strlcpy(buf, thread->name, len);
				else if (len > 0)
				buf[0] = '\0';
				}

				__weak_reference(_pthread_get_name_np, pthread_get_name_np);

				void
				_pthread_get_name_np(pthread_t thread, char *buf, size_t len)
				{
				struct pthread *curthread;

				curthread = _get_curthread();
				if (curthread == thread) {
				THR_THREAD_LOCK(curthread, thread);
				thr_get_name_np(thread, buf, len);
				THR_THREAD_UNLOCK(curthread, thread);
				} else {
				if (_thr_find_thread(curthread, thread, 0) == 0) {
				if (thread->state != PS_DEAD)
				thr_get_name_np(thread, buf, len);
				THR_THREAD_UNLOCK(curthread, thread);
				} else if (len > 0)
				buf[0] = '\0';
				}
	}			}