group.cc
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/*
* Copyright (c) 2014-2016, Siemens AG. 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 <cstring>
#include <cassert>
#include <embb/base/exceptions.h>
#include <embb/tasks/tasks.h>
namespace embb {
namespace tasks {
Group::Group() {
Create();
}
Group::~Group() {
mtapi_status_t status;
mtapi_group_delete(handle_, &status);
assert(MTAPI_SUCCESS == status);
}
void Group::Create() {
mtapi_status_t status;
handle_ = mtapi_group_create(MTAPI_GROUP_ID_NONE, MTAPI_NULL, &status);
if (MTAPI_SUCCESS != status) {
EMBB_THROW(embb::base::ErrorException,
"mtapi::Group could not be constructed");
}
}
Task Group::Spawn(Action action) {
return Task(action, handle_);
}
Task Group::Spawn(mtapi_task_id_t id, Action action) {
return Task(id, action, handle_);
}
mtapi_status_t Group::WaitAny(mtapi_timeout_t timeout) {
mtapi_status_t status;
mtapi_group_wait_any(handle_, MTAPI_NULL, timeout, &status);
if (MTAPI_GROUP_COMPLETED == status) {
// group has been deleted, so recreate it for simplicity
Create();
}
return status;
}
mtapi_status_t Group::WaitAny(
mtapi_timeout_t timeout,
mtapi_task_id_t & result) {
mtapi_status_t status;
void * res;
mtapi_group_wait_any(handle_, &res, timeout, &status);
memcpy(&result, &res, sizeof(result));
if (MTAPI_GROUP_COMPLETED == status) {
// group has been deleted, so recreate it for simplicity
Create();
}
return status;
}
mtapi_status_t Group::WaitAll(mtapi_timeout_t timeout) {
mtapi_status_t status;
mtapi_group_wait_all(handle_, timeout, &status);
// group has been deleted, so recreate it for simplicity
Create();
return status;
}
} // namespace tasks
} // namespace embb