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Code Issues Releases Wiki Activity

tools/revent: timestamp adjustment fixes

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- Make sure start/end timestamps are properly adjusted when there are
  zero events.
- Rename adjust_event_times --> adjust_timestamps, as the latter better
  fits its current function.
- Add a couple of debug messages.
This commit is contained in:
Sergei Trofimov
2017-09-28 15:11:28 +01:00
parent 831515ae8d
commit 28e339d3b2
3 changed files with 13 additions and 8 deletions
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21
wa/tools/revent/revent.c
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@@ -265,14 +265,11 @@ inline void block_sigterm(sigset_t *oldset)
// Events are recorded with their original timestamps, but for playback, we
// want to treat timestamps as deltas from event zero.
void adjust_event_times(revent_recording_t *recording)
void adjust_timestamps(revent_recording_t *recording)
{
uint64_t i;
struct timeval time_zero, time_delta;
if (recording->num_events == 0)
return;
time_zero.tv_sec = recording->start_time.tv_sec;
time_zero.tv_usec = recording->start_time.tv_usec;
@@ -1302,8 +1299,8 @@ void replay(const char *filepath)
default:
die("Unexpected recording mod: %d", recording.desc.mode);
}
dprintf("Adjusting event timestamps\n");
adjust_event_times(&recording);
dprintf("Adjusting timestamps\n");
adjust_timestamps(&recording);
struct timeval start_time, now, desired_time, last_event_delta, delta;
bzero(&last_event_delta, sizeof(struct timeval));
@@ -1345,12 +1342,13 @@ void replay(const char *filepath)
}
last_event_delta = ev.time;
}
timeradd(&start_time, &recording.end_time, &desired_time);
gettimeofday(&now, NULL);
if (timercmp(&desired_time, &now, >)) {
timersub(&desired_time, &now, &delta);
useconds_t d = (useconds_t)delta.tv_sec * 1000000 + delta.tv_usec;
dprintf("now %u.%u recording end time %u.%u sleeping %u uS\n",
dprintf("now %u.%u recording end time %u.%u; sleeping %u uS\n",
(unsigned int)now.tv_sec,
(unsigned int)now.tv_usec,
(unsigned int)desired_time.tv_sec,
@@ -1358,7 +1356,14 @@ void replay(const char *filepath)
d);
usleep(d);
}
else {
dprintf("now %u.%u recording end time %u.%u; no need to sleep\n",
(unsigned int)now.tv_sec,
(unsigned int)now.tv_usec,
(unsigned int)desired_time.tv_sec,
(unsigned int)desired_time.tv_usec);
}
dprintf("Playback complete\n");
if (recording.desc.mode == GAMEPAD_MODE)
destroy_replay_device(recording.devices.fds[0]);