void SysConsoleServiceImp::lostCheckStatus(std::string& _return)
{
LostCheckState tsk(_return);
sysc->lcDriver->query(&tsk);
tsk.wait(-1);
}
void BufferCont::startMappingThread(){
int numTask = std::thread::hardware_concurrency();
if (numTask>m_buffer.back().size()) numTask = m_buffer.back().size();
vector<thread> thrd;
size_t num = (m_buffer.back().size() / numTask);
size_t i = 0;
vector<vector<int>> tsk(numTask);
for (auto &t : tsk) t.reserve(num+1);
for (; i < m_buffer.back().size(); ++i){
int k = i / num;
if (k == numTask) break;
tsk[k].push_back(i);
}
for (size_t j = 0; i < m_buffer.back().size(); ++i, ++j){
tsk[j].push_back(i);
}
for (int i = 0; i<numTask; i++){
thrd.push_back(thread(mappingThread, ref(tsk[i]), ref(*this)));
}
for (auto &i : thrd) i.join();
}
void task_pool::join()
{
for ( ; ; )
{
m_task_condition_var.lock();
if (!m_tasks.empty())
{
task tsk(m_tasks.front());
m_tasks.pop_front();
m_task_condition_var.unlock();
process_task(tsk);
}
else
{
int result = m_task_condition_var.wait(join_condition_func, this);
result;
CRNLIB_ASSERT(result >= 0);
m_task_condition_var.unlock();
break;
}
}
}
/******************************************************************************
* One task/thread per solution. Results are printed by main
* after all of them have been computed.
*/
static void paralleSolutionsSequentialResults()
{
//Create the containers to use and preallocate the memory needed
auto scount = getSolutions().size();
//one thread for each solution for now
std::vector<std::thread> threads;
threads.reserve(scount);
//one future for each solution
std::vector<std::future<long>> futures;
futures.reserve(scount);
// Grab the futures and create a thread for each solution;
for(const auto &s : getSolutions() ){
// get the function pointer for the solution
auto fp = s.second;
// and create a future and a thread for it through a prepared_task.
std::packaged_task<long()> tsk(fp);
futures.emplace_back(std::move(tsk.get_future()));
threads.emplace_back(std::move(tsk));
}
// wait for the threads t finish the computations.
for(auto &t: threads)
t.join();
// print the computed results (and compared them to the expected ones).
for(size_t i=0; i < getSolutions().size(); ++i){
const auto problem = getSolutions().at(i).first;
long result = futures[i].get();
printResult(problem, result);
}
}
void SysConsoleServiceImp::sessionInfo(std::string& _return, const int64_t serverId)
{
SessionInfoTask tsk(_return);
tsk.serverId = serverId;
sysc->ssMgr->query(&tsk);
tsk.wait(-1);
}
void SysConsoleServiceImp::localSyncStatus(std::string& _return)
{
if(sysc->lsyncDrv){
LocalSyncStat tsk(_return);
sysc->lsyncDrv->query(&tsk);
tsk.wait(-1);
}else{
_return = "LocalSync not open, are you in center node?";
}
}
int main() {
std::packaged_task<int( int, int )> tsk( countdown ); // Set up packaged_task in the main thread
std::future<int> ret = tsk.get_future(); // Get future
std::thread th( std::move( tsk ), 10, 0 ); // Spawn a thread to count down from 10 to 0
// ...
int value = ret.get(); // Wait for the task to finish and get result
std::cout << "The countdown lasted for " << value << " seconds.\n";
th.join();
return 0;
}
aio_task_ptr write(
handle_t hFile,
const char* buffer,
int count,
uint64_t offset,
task_code callback_code,
servicelet* owner,
aio_handler callback,
int hash /*= 0*/
)
{
aio_task_ptr tsk(callback != nullptr ?
static_cast<aio_task*>(new internal_use_only::service_aio_task(callback_code, owner, callback, hash))
: static_cast<aio_task*>(new aio_task_empty(callback_code, hash))
);
write(hFile, buffer, count, offset, tsk);
return tsk;
}
aio_task_ptr copy_remote_files(
const end_point& remote,
std::string& source_dir,
std::vector<std::string>& files, // empty for all
std::string& dest_dir,
bool overwrite,
task_code callback_code,
servicelet* owner,
aio_handler callback,
int hash /*= 0*/
)
{
aio_task_ptr tsk(callback != nullptr ?
static_cast<aio_task*>(new internal_use_only::service_aio_task(callback_code, owner, callback, hash))
: static_cast<aio_task*>(new aio_task_empty(callback_code, hash))
);
copy_remote_files(remote, source_dir, files, dest_dir, overwrite, tsk);
return tsk;
}
void Cache::_doDownload(const std::string& url, const std::string& sTempFile, FileEntry* pFileEntry, MemoryEntry* result)
{
std::string sTargetFilename = _basedir + sTempFile;
downloadTask tsk(url, sTargetFilename);
if (tsk.download())
{
pFileEntry->_SetFilesize((size_t)tsk.getDownloaded());
std::string sTargetFilenameMeta = sTargetFilename + ".cache"; // _basedir + sTempFile + ".cache";
std::ofstream metafile;
metafile.open(sTargetFilenameMeta.c_str());
CacheEntry ce;
ce.url = url;
ce.localfile = sTempFile;
ce.size = pFileEntry->FileSize();
/*const HeaderFieldDefinition& hi = tsk.GetHeaderFieldDefinitions();
for (size_t i=0;i<hi.size();i++)
{
std::cout << "[" << hi[i].first << "] [" << hi[i].second << "]\n";
}*/
access::Class::ToXML(metafile, "CacheEntry", (void*)&ce, false); // XML without header
metafile.close();
pFileEntry->_SetReady();
_curDiskCacheCapacity += (double)pFileEntry->FileSize() / 1024.0 / 1024.0;
_doRead(result, _basedir + sTempFile);
}
else
{
pFileEntry->_SetFailed();
result->_SetFailed();
insertMemoryEntry(pFileEntry->LocalFile(),result);
}
}
// =================================
// Start scheduler - init registered tasks
// =================================
void Coos::start(void)
{
int res;
void (*tsk)(void);
update_time();
for (task_no=0; task_no<task_cnt; task_no++)
{
if (tsk_p[task_no] != NULL) // if task was registered
{
res = setjmp(main_context);
if (res == 0)
{
tsk = tsk_p[task_no];
tsk(); // invoke task
}
else
{
task_delay[task_no] = --res; // task returns the required delay
}
}
update_time();
}
task_no = 0;
}
unsigned __stdcall task_pool::thread_func(void* pContext)
{
//set_thread_name(GetCurrentThreadId(), "taskpoolhelper");
task_pool* pPool = static_cast<task_pool*>(pContext);
for ( ; ; )
{
pPool->m_task_condition_var.lock();
int result = pPool->m_task_condition_var.wait(wait_condition_func, pPool);
CRNLIB_ASSERT(result >= 0);
if ((result < 0) || (pPool->m_exit_flag))
{
pPool->m_task_condition_var.unlock();
break;
}
if (pPool->m_tasks.empty())
pPool->m_task_condition_var.unlock();
else
{
task tsk(pPool->m_tasks.front());
pPool->m_tasks.pop_front();
pPool->m_task_condition_var.unlock();
pPool->process_task(tsk);
}
}
_endthreadex(0);
return 0;
}
static typename result_of::lazy_fork<AE,F>::move_type apply(AE& , F fn ) {
packaged_task<typename boost::result_of<F()>::type> tsk(fn);
tsk.set_wait_callback(detail::invoke_lazy_task<typename boost::result_of<F()>::type>());
return boost::move(tsk);
}
