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SRT: Refine the schedule resolution to 10ms if idle.

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This commit is contained in:
winlin 2022-05-28 10:46:05 +08:00
parent b507a080b2
commit 4899be9c34
3 changed files with 17 additions and 7 deletions
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16
trunk/src/app/srs_app_srt_server.cpp
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@ -374,15 +374,21 @@ srs_error_t SrsSrtEventLoop::cycle()
return srs_error_wrap(err, "srt listener");
}
// Check events fired, return directly.
if ((err = srt_poller_->wait(0)) != srs_success) {
srs_error("srt poll wait failed, err=%s", srs_error_desc(err).c_str());
// Check and notify fired SRT events by epoll.
//
// Note that the SRT poller use a dedicated and isolated epoll, which is not the same as the one of SRS, in
// short, the wait won't switch to other coroutines when no fd is active, so we must use timeout(0) to make sure
// to return directly, then use srs_usleep to do the coroutine switch.
int n_fds = 0;
if ((err = srt_poller_->wait(0, &n_fds)) != srs_success) {
srs_warn("srt poll wait failed, n_fds=%d, err=%s", n_fds, srs_error_desc(err).c_str());
srs_error_reset(err);
}
// Schedule srt event by state-thread.
srs_usleep(1 * SRS_UTIME_MILLISECONDS);
// We use sleep to switch to other coroutines, because the SRT poller is not possible to do this.
srs_usleep((n_fds ? 1 : 10) * SRS_UTIME_MILLISECONDS);
}
return err;
}