[newlib-cygwin] Cygwin: dsp: Reduce wait time for blocking read().

Takashi Yano tyan0@sourceware.org
Tue Sep 5 09:30:38 GMT 2023


https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=8b2b54b41da605e69a4f30919f24f7a7254d9314

commit 8b2b54b41da605e69a4f30919f24f7a7254d9314
Author: Takashi Yano <takashi.yano@nifty.ne.jp>
Date:   Tue Sep 5 17:11:13 2023 +0900

    Cygwin: dsp: Reduce wait time for blocking read().
    
    Previous wait time of 100msec is too long if application specifies
    smaller buffer. With this patch, the wait time is reduced to 1msec.

Diff:
---
 winsup/cygwin/fhandler/dsp.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/winsup/cygwin/fhandler/dsp.cc b/winsup/cygwin/fhandler/dsp.cc
index e872aa08c..00f2bab69 100644
--- a/winsup/cygwin/fhandler/dsp.cc
+++ b/winsup/cygwin/fhandler/dsp.cc
@@ -931,8 +931,8 @@ fhandler_dev_dsp::Audio_in::waitfordata ()
 	  set_errno (EAGAIN);
 	  return false;
 	}
-      debug_printf ("100ms");
-      switch (cygwait (100))
+      debug_printf ("1ms");
+      switch (cygwait (1))
 	{
 	case WAIT_SIGNALED:
 	  if (!_my_tls.call_signal_handler ())


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