FreeRDP/libfreerdp-utils/thread.c

/**
 * FreeRDP: A Remote Desktop Protocol client.
 * Thread Utils
 *
 * Copyright 2011 Vic Lee
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <freerdp/utils/memory.h>
#include <freerdp/utils/thread.h>

#ifdef _WIN32
#include <Windows.h>

struct timespec
{
	uint64 tv_sec;
	uint64 tv_nsec;
};
#endif

freerdp_thread* freerdp_thread_new(void)
{
	freerdp_thread* thread;

	thread = xnew(freerdp_thread);
	thread->mutex = freerdp_mutex_new();
	thread->signals[0] = wait_obj_new();
	thread->signals[1] = wait_obj_new();
	thread->num_signals = 2;

	return thread;
}

void freerdp_thread_start(freerdp_thread* thread, void* func, void* arg)
{
	thread->status = 1;

#ifdef _WIN32
	{
		DWORD th;
		CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)func, arg, 0, &th);
	}
#else
	{
		pthread_t th;
		pthread_create(&th, 0, func, arg);
		pthread_detach(th);
	}
#endif
}

void freerdp_thread_stop(freerdp_thread* thread)
{
	int i = 0;

#ifndef _WIN32
	struct timespec ts;
	ts.tv_sec = 0;
	ts.tv_nsec = 10000000;
#else
	DWORD dwMilliseconds;
	dwMilliseconds = 10000;
#endif

	wait_obj_set(thread->signals[0]);

	while (thread->status > 0 && i < 1000)
	{
		i++;
#ifndef _WIN32
		nanosleep(&ts, NULL);
#else
		SleepEx(dwMilliseconds, 0);
#endif
	}

	for (i = 0; i < thread->num_signals; i++)
		wait_obj_free(thread->signals[i]);
	thread->num_signals = 0;

	freerdp_mutex_free(thread->mutex);
	thread->mutex = NULL;

	xfree(thread);
}