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/*
 *
 * (C) 2003-2024 Anope Team
 * Contact us at team@anope.org
 *
 * Please read COPYING and README for further details.
 *
 * Based on the original code of Epona by Lara.
 * Based on the original code of Services by Andy Church.
 */

#include "services.h"
#include "threadengine.h"
#include "anope.h"

#ifndef _WIN32
#include <pthread.h>
#endif

static inline pthread_attr_t *get_engine_attr()
{
	/* Threadengine attributes used by this thread engine */
	static pthread_attr_t attr;
	static bool inited = false;

	if (inited == false)
	{
		if (pthread_attr_init(&attr))
			throw CoreException("Error calling pthread_attr_init");
		if (pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE))
			throw CoreException("Unable to mark threads as joinable");
		inited = true;
	}

	return &attr;
}

static void *entry_point(void *parameter)
{
	Thread *thread = static_cast<Thread *>(parameter);
	thread->Run();
	thread->SetExitState();
	pthread_exit(0);
	return NULL;
}

void Thread::Join()
{
	this->SetExitState();
	pthread_join(handle, NULL);
}

void Thread::SetExitState()
{
	this->Notify();
	exit = true;
}

void Thread::Exit()
{
	this->SetExitState();
	pthread_exit(0);
}

void Thread::Start()
{
	if (pthread_create(&this->handle, get_engine_attr(), entry_point, this))
	{
		this->flags[SF_DEAD] = true;
		throw CoreException("Unable to create thread: " + Anope::LastError());
	}
}

bool Thread::GetExitState() const
{
	return exit;
}

void Thread::OnNotify()
{
	this->Join();
	this->flags[SF_DEAD] = true;
}