#include <ardour/audioengine.h>
#include <ardour/session.h>
#include <ardour/audio_diskstream.h>
+#include <ardour/midi_diskstream.h>
#include <ardour/crossfade.h>
#include <ardour/timestamps.h>
* (i.e. how many MIDI bytes we might see in a cycle)
*/
midi_dstream_buffer_size = (uint32_t) floor (Config->get_midi_track_buffer_seconds() * (float)frame_rate());
+ MidiDiskstream::set_readahed_frames ((nframes_t) (Config->get_midi_readahead() * (float) frame_rate()));
Crossfade::set_buffer_size (audio_dstream_buffer_size);
uint32_t err = 0;
int32_t bytes;
bool compute_io;
- struct timeval begin, end;
+ microseconds_t begin, end;
+
struct pollfd pfd[1];
bool disk_work_outstanding = false;
DiskstreamList::iterator i;
bytes = 0;
compute_io = true;
- gettimeofday (&begin, 0);
+ begin = get_microseconds();
boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader ();
}
if (compute_io) {
- gettimeofday (&end, 0);
-
- double b = begin.tv_sec + (begin.tv_usec/1000000.0);
- double e = end.tv_sec + (end.tv_usec / 1000000.0);
-
- _read_data_rate = bytes / (e - b);
+ end = get_microseconds();
+ if(end-begin > 0) {
+ _read_data_rate = (float) bytes / (float) (end - begin);
+ } else { _read_data_rate = 0; // infinity better
+ }
}
bytes = 0;
compute_io = true;
- gettimeofday (&begin, 0);
+ begin = get_microseconds();
for (i = dsl->begin(); !transport_work_requested() && butler_should_run && i != dsl->end(); ++i) {
// cerr << "write behind for " << (*i)->name () << endl;
}
if (compute_io) {
- gettimeofday (&end, 0);
-
- double b = begin.tv_sec + (begin.tv_usec/1000000.0);
- double e = end.tv_sec + (end.tv_usec / 1000000.0);
-
- _write_data_rate = bytes / (e - b);
+ // there are no apparent users for this calculation?
+ end = get_microseconds();
+ if(end-begin > 0) {
+ _write_data_rate = (float) bytes / (float) (end - begin);
+ } else {
+ _write_data_rate = 0; // Well, infinity would be better
+ }
}
if (!disk_work_outstanding) {
/* disk i/o in excess of 10000MB/sec indicate the buffer cache
in action. ignore it.
*/
- return _read_data_rate > 10485760000.0f ? 0.0f : _read_data_rate;
+ return _read_data_rate > 10485.7600000f ? 0.0f : _read_data_rate;
}
float
/* disk i/o in excess of 10000MB/sec indicate the buffer cache
in action. ignore it.
*/
- return _write_data_rate > 10485760000.0f ? 0.0f : _write_data_rate;
+ return _write_data_rate > 10485.7600000f ? 0.0f : _write_data_rate;
}
uint32_t