Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-
-#ifdef __linux__
-#include <unistd.h>
-#elif defined(__APPLE__) || defined(__FreeBSD__)
-#include <sys/types.h>
-#include <sys/sysctl.h>
-#endif
-
#include <stdio.h>
#include <cmath>
#include "pbd/compose.h"
+#include "pbd/cpus.h"
#include "ardour/debug.h"
#include "ardour/graph.h"
using namespace ARDOUR;
using namespace PBD;
+using namespace std;
-static unsigned int
-hardware_concurrency()
-{
-#if defined(PTW32_VERSION) || defined(__hpux)
- return pthread_num_processors_np();
-#elif defined(__APPLE__) || defined(__FreeBSD__)
- int count;
- size_t size=sizeof(count);
- return sysctlbyname("hw.ncpu",&count,&size,NULL,0)?0:count;
-#elif defined(HAVE_UNISTD) && defined(_SC_NPROCESSORS_ONLN)
- int const count=sysconf(_SC_NPROCESSORS_ONLN);
- return (count>0)?count:0;
-#else
- return 0;
-#endif
-}
Graph::Graph (Session & session)
: SessionHandleRef (session)
sem_init( &_callback_start_sem, 0, 0 );
sem_init( &_callback_done_sem, 0, 0 );
+ sem_init( &_cleanup_sem, 0, 0 );
_execution_tokens = 0;
- pthread_mutex_init (&_swap_mutex, NULL);
_current_chain = 0;
_pending_chain = 0;
_setup_chain = 1;
_graph_empty = true;
int num_cpu = hardware_concurrency();
- info << string_compose (_("Using %1 CPUs via %1 threads\n"), num_cpu) << endmsg;
- _thread_list.push_back( Glib::Thread::create( sigc::mem_fun( *this, &Graph::main_thread), 100000, true, true, Glib::THREAD_PRIORITY_NORMAL) );
- for (int i=1; i<num_cpu; i++)
- _thread_list.push_back( Glib::Thread::create( sigc::mem_fun( *this, &Graph::helper_thread), 100000, true, true, Glib::THREAD_PRIORITY_NORMAL) );
+ int num_threads = num_cpu;
+ int pu = Config->get_processor_usage ();
+
+ if (pu < 0) {
+ /* pu is negative: use "pu" less cores for DSP than appear to be available
+ */
+
+ if (-pu < num_threads) {
+ num_threads += pu;
+ } else {
+ num_threads = 1;
+ }
+ } else {
+ /* use "pu" cores, if available
+ */
+
+ if (pu <= num_threads) {
+ num_threads = pu;
+ }
+ }
+
+ info << string_compose (_("Using %2 threads on %1 CPUs"), num_cpu, num_threads) << endmsg;
+
+ _thread_list.push_back (AudioEngine::instance()->create_process_thread (boost::bind (&Graph::main_thread, this), 100000));
+
+ for (int i = 1; i < num_threads; ++i) {
+ _thread_list.push_back (AudioEngine::instance()->create_process_thread (boost::bind (&Graph::helper_thread, this), 100000));
+ }
}
void
sem_post( &_callback_start_sem);
- for (std::list<Glib::Thread *>::iterator i=_thread_list.begin(); i!=_thread_list.end(); i++) {
- (*i)->join();
+ for (list<pthread_t>::iterator i = _thread_list.begin(); i != _thread_list.end(); i++) {
+ void* status;
+ pthread_join (*i, &status);
}
// now drop all references on the nodes.
- _nodes.clear();
_nodes_rt[0].clear();
_nodes_rt[1].clear();
_init_trigger_list[0].clear();
_trigger_queue.clear();
}
+void
+Graph::clear_other_chain ()
+{
+ Glib::Mutex::Lock ls (_swap_mutex);
+
+ while (1) {
+ if (_setup_chain != _pending_chain) {
+
+ for (node_list_t::iterator ni=_nodes_rt[_setup_chain].begin(); ni!=_nodes_rt[_setup_chain].end(); ni++) {
+ (*ni)->_activation_set[_setup_chain].clear();
+ }
+
+ _nodes_rt[_setup_chain].clear ();
+ _init_trigger_list[_setup_chain].clear ();
+ break;
+ }
+ /* setup chain == pending chain - we have
+ to wait till this is no longer true.
+ */
+ _cleanup_cond.wait (_swap_mutex);
+ }
+}
+
void
Graph::prep()
{
node_list_t::iterator i;
int chain;
- if (pthread_mutex_trylock (&_swap_mutex) == 0) {
+ if (_swap_mutex.trylock()) {
// we got the swap mutex.
if (_current_chain != _pending_chain)
{
- //printf ("chain swap ! %d -> %d\n", _current_chain, _pending_chain);
+ // printf ("chain swap ! %d -> %d\n", _current_chain, _pending_chain);
_setup_chain = _current_chain;
_current_chain = _pending_chain;
+ _cleanup_cond.signal ();
}
- pthread_mutex_unlock (&_swap_mutex);
+ _swap_mutex.unlock ();
}
chain = _current_chain;
Graph::rechain (boost::shared_ptr<RouteList> routelist)
{
node_list_t::iterator ni;
+ Glib::Mutex::Lock ls (_swap_mutex);
- pthread_mutex_lock (&_swap_mutex);
int chain = _setup_chain;
- printf ("============== setup %d\n", chain);
+ DEBUG_TRACE (DEBUG::Graph, string_compose ("============== setup %1\n", chain));
// set all refcounts to 0;
_init_finished_refcount[chain] = 0;
_pending_chain = chain;
dump(chain);
- pthread_mutex_unlock (&_swap_mutex);
}
-
bool
Graph::run_one()
{
to_run = 0;
}
- int wakeup = std::min ((int) _execution_tokens, (int) _trigger_queue.size());
+ int wakeup = min ((int) _execution_tokens, (int) _trigger_queue.size());
_execution_tokens -= wakeup;
for (int i=0; i<wakeup; i++ ) {
this->prep();
- if (_graph_empty) {
+ if (_graph_empty && !_quit_threads) {
sem_post (&_callback_done_sem);
goto again;
}
chain = _pending_chain;
- printf ("--------------------------------------------Graph dump:\n" );
+ DEBUG_TRACE (DEBUG::Graph, "--------------------------------------------Graph dump:\n");
for (ni=_nodes_rt[chain].begin(); ni!=_nodes_rt[chain].end(); ni++) {
boost::shared_ptr<Route> rp = boost::dynamic_pointer_cast<Route>( *ni);
- printf ("GraphNode: %s refcount: %d\n", rp->name().c_str(), (*ni)->_init_refcount[chain] );
+ DEBUG_TRACE (DEBUG::Graph, string_compose ("GraphNode: %1 refcount: %2\n", rp->name().c_str(), (*ni)->_init_refcount[chain]));
for (ai=(*ni)->_activation_set[chain].begin(); ai!=(*ni)->_activation_set[chain].end(); ai++) {
- printf (" triggers: %s\n", boost::dynamic_pointer_cast<Route>(*ai)->name().c_str() );
+ DEBUG_TRACE (DEBUG::Graph, string_compose (" triggers: %1\n", boost::dynamic_pointer_cast<Route>(*ai)->name().c_str()));
}
}
- printf ("------------- trigger list:\n" );
+ DEBUG_TRACE (DEBUG::Graph, "------------- trigger list:\n");
for (ni=_init_trigger_list[chain].begin(); ni!=_init_trigger_list[chain].end(); ni++) {
- printf ("GraphNode: %s refcount: %d\n", boost::dynamic_pointer_cast<Route>(*ni)->name().c_str(), (*ni)->_init_refcount[chain] );
+ DEBUG_TRACE (DEBUG::Graph, string_compose ("GraphNode: %1 refcount: %2\n", boost::dynamic_pointer_cast<Route>(*ni)->name().c_str(), (*ni)->_init_refcount[chain]));
}
- printf ("final activation refcount: %d\n", _init_finished_refcount[chain] );
+ DEBUG_TRACE (DEBUG::Graph, string_compose ("final activation refcount: %1\n", _init_finished_refcount[chain]));
#endif
}
projects / ardour.git / blobdiff