void * join()
{
if ( thread.get() )
{
void * p = 0;
if ( pthread_join(*thread,&p) )
{
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_join() failed in PosixThread::join()";
se.finish();
throw se;
}
thread.reset();
return p;
}
else
{
::libmaus::exception::LibMausException se;
se.getStream() << "PosixThread::join() called but no thread initialised";
se.finish();
throw se;
}
}
void start()
{
if ( ! thread.get() )
{
thread = UNIQUE_PTR_MOVE(thread_ptr_type(new pthread_t));
#if 0
std::cerr << "Creating thread without affinity." << std::endl;
std::cerr << ::libmaus::util::StackTrace::getStackTrace() << std::endl;
#endif
if ( pthread_create(thread.get(),0,dispatch,this) )
{
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_create() failed in PosixThread::start()";
se.finish();
throw se;
}
}
else
{
::libmaus::exception::LibMausException se;
se.getStream() << "PosixThread::start() called but object is already in use.";
se.finish();
throw se;
}
}
void startStack(uint64_t const rstacksize = 64*1024)
{
if ( ! thread.get() )
{
thread = UNIQUE_PTR_MOVE(thread_ptr_type(new pthread_t));
#if 0
std::cerr << "Creating thread without affinity." << std::endl;
std::cerr << ::libmaus::util::StackTrace::getStackTrace() << std::endl;
#endif
pthread_attr_t attr;
if ( pthread_attr_init(&attr) )
{
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_attr_init failed:" << strerror(errno);
se.finish();
throw se;
}
uint64_t const stacksize = std::max(rstacksize,static_cast<uint64_t>(PTHREAD_STACK_MIN));
if ( pthread_attr_setstacksize(&attr,stacksize) != 0 )
{
pthread_attr_destroy(&attr);
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_attr_setstacksize() failed in PosixThread::startStack(): " << strerror(errno) << std::endl;
se.finish();
throw se;
}
if ( pthread_create(thread.get(),&attr,dispatch,this) )
{
pthread_attr_destroy(&attr);
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_create() failed in PosixThread::start()";
se.finish();
throw se;
}
if ( pthread_attr_destroy(&attr) )
{
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_attr_destroy failed:" << strerror(errno);
se.finish();
throw se;
}
}
else
{
::libmaus::exception::LibMausException se;
se.getStream() << "PosixThread::start() called but object is already in use.";
se.finish();
throw se;
}
}
void * tryJoin()
{
if ( thread.get() )
{
void * p = 0;
if ( pthread_join(*thread,&p) )
{
::libmaus2::exception::LibMausException se;
se.getStream() << "pthread_join() failed in PosixThread::join()";
se.finish();
throw se;
}
thread.reset();
return p;
}
else
{
return 0;
}
}
virtual ~PosixThread()
{
if ( thread.get() )
join();
}
void start(std::vector<uint64_t> const & procs)
{
if ( ! thread.get() )
{
thread = UNIQUE_PTR_MOVE(thread_ptr_type(new pthread_t));
pthread_attr_t attr;
if ( pthread_attr_init(&attr) )
{
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_attr_init failed:" << strerror(errno);
se.finish();
throw se;
}
cpu_set_t cpuset;
CPU_ZERO(&cpuset);
for ( uint64_t i = 0; i < procs.size(); ++i )
CPU_SET(procs[i],&cpuset);
if ( pthread_attr_setaffinity_np(&attr,sizeof(cpu_set_t),&cpuset) )
{
pthread_attr_destroy(&attr);
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_attr_setaffinity_np failed:" << strerror(errno);
se.finish();
throw se;
}
#if 0
std::cerr << "Creating thread with affinity." << std::endl;
std::cerr << ::libmaus::util::StackTrace::getStackTrace() << std::endl;
#endif
if ( pthread_create(thread.get(),&attr,dispatch,this) )
{
pthread_attr_destroy(&attr);
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_create() failed in PosixThread::start()";
se.finish();
throw se;
}
if ( pthread_attr_destroy(&attr) )
{
::libmaus::exception::LibMausException se;
se.getStream() << "pthread_attr_destroy failed:" << strerror(errno);
se.finish();
throw se;
}
}
else
{
::libmaus::exception::LibMausException se;
se.getStream() << "PosixThread::start() called but object is already in use.";
se.finish();
throw se;
}
}
