/***
* ==++==
*
* Copyright (c) Microsoft Corporation. All rights reserved.
* 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.
*
* ==--==
* =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*
* Apple-specific pplx implementations
*
* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
****/
#include <errno.h>
#include <sys/time.h>
#include <pthread.h>
#include <dispatch/dispatch.h>
#include <libkern/OSAtomic.h>
#include "stdafx.h"
#include "pplx/pplx.h"
// DEVNOTE:
// The use of mutexes is suboptimal for synchronization of task execution.
// Given that scheduler implementations should use GCD queues, there are potentially better mechanisms available to coordinate tasks (such as dispatch groups).
namespace pplx
{
namespace details {
namespace platform
{
_PPLXIMP long GetCurrentThreadId()
{
pthread_t threadId = pthread_self();
return (long)threadId;
}
void YieldExecution()
{
sleep(0);
}
} // namespace platform
void apple_scheduler::schedule( TaskProc_t proc, void* param)
{
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_async_f(queue, param, proc);
}
} // namespace details
} // pplx