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/*
* Copyright 2011-2016 Blender Foundation
*
* 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 "util/util_thread.h"
#include "util/util_system.h"
#include "util/util_windows.h"
CCL_NAMESPACE_BEGIN
thread::thread(function<void()> run_cb, int node) : run_cb_(run_cb), joined_(false), node_(node)
{
#ifdef __APPLE__
/* Set the stack size to 2MB to match Linux. The default 512KB on macOS is
* too small for Embree, and consistent stack size also makes things more
* predictable in general. */
pthread_attr_t attribute;
pthread_attr_init(&attribute);
pthread_attr_setstacksize(&attribute, 1024 * 1024 * 2);
pthread_create(&pthread_id, &attribute, run, (void *)this);
#else
std_thread = std::thread(&thread::run, this);
#endif
}
thread::~thread()
{
if (!joined_) {
join();
}
}
void *thread::run(void *arg)
{
thread *self = (thread *)(arg);
if (self->node_ != -1) {
system_cpu_run_thread_on_node(self->node_);
}
self->run_cb_();
return NULL;
}
bool thread::join()
{
joined_ = true;
#ifdef __APPLE__
return pthread_join(pthread_id, NULL) == 0;
#else
try {
std_thread.join();
return true;
}
catch (const std::system_error &) {
return false;
}
#endif
}
CCL_NAMESPACE_END
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