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/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibThread/Thread.h>
#include <pthread.h>
#include <unistd.h>
LibThread::Thread::Thread(Function<int()> action, StringView thread_name)
: Core::Object(nullptr)
, m_action(move(action))
, m_thread_name(thread_name.is_null() ? "" : thread_name)
{
}
LibThread::Thread::~Thread()
{
if (m_tid) {
dbg() << "trying to destroy a running thread!";
ASSERT_NOT_REACHED();
}
}
void LibThread::Thread::start()
{
int rc = pthread_create(
&m_tid,
nullptr,
[](void* arg) -> void* {
Thread* self = static_cast<Thread*>(arg);
size_t exit_code = self->m_action();
self->m_tid = 0;
return (void*)exit_code;
},
static_cast<void*>(this));
ASSERT(rc == 0);
if (!m_thread_name.is_empty()) {
rc = pthread_setname_np(m_tid, m_thread_name.characters());
ASSERT(rc == 0);
}
dbg() << "Started a thread, tid = " << m_tid;
}
void LibThread::Thread::quit(void *code)
{
ASSERT(m_tid == pthread_self());
m_tid = 0;
pthread_exit(code);
}
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