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/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this Program, or any covered work, by linking or combining
* it with OpenSSL (or a modified version of that library), containing parts
* covered by the terms of OpenSSL License and SSLeay License, the licensors
* of this Program grant you additional permission to convey the resulting work.
*
*/
#include "miner_work.hpp"
#include "globalStates.hpp"
#include <assert.h>
#include <cmath>
#include <chrono>
#include <cstring>
namespace xmrstak
{
void globalStates::consume_work( miner_work& threadWork, uint64_t& currentJobId)
{
jobLock.rdlock();
threadWork = oGlobalWork;
currentJobId = iGlobalJobNo.load(std::memory_order_relaxed);
jobLock.unlock();
}
void globalStates::switch_work(miner_work& pWork, pool_data& dat)
{
jobLock.wrlock();
// this notifies all threads that the job has changed
iGlobalJobNo++;
size_t xid = dat.pool_id;
dat.pool_id = pool_id;
pool_id = xid;
/* Maybe a worker thread is updating the nonce while we read it.
* In that case GPUs check the job ID after a nonce update and in the
* case that it is a CPU thread we have a small chance (max 6 nonces per CPU thread)
* that we recalculate a nonce after we reconnect to the current pool
*/
dat.iSavedNonce = iGlobalNonce.exchange(dat.iSavedNonce, std::memory_order_relaxed);
oGlobalWork = pWork;
jobLock.unlock();
}
} // namespace xmrstak
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