From 39b166fc43a37d1731a194c06deacba571894847 Mon Sep 17 00:00:00 2001 From: Eli Zaretskii Date: Sat, 30 Jan 2016 20:05:20 +0200 Subject: [PATCH] Disable DebPrint in sys_read on MS-Windows * src/w32.c (sys_read): Disable a debugging print that is normal when non-blocking reads are retried. --- src/w32.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/src/w32.c b/src/w32.c index 067bb3d7cad..fbcfb970337 100644 --- a/src/w32.c +++ b/src/w32.c @@ -8369,7 +8369,17 @@ sys_read (int fd, char * buffer, unsigned int count) case STATUS_READ_READY: case STATUS_READ_IN_PROGRESS: - DebPrint (("sys_read called when read is in progress\n")); +#if 0 + /* This happens all the time during GnuTLS handshake + with the remote, evidently because GnuTLS waits for + the read to complete by retrying the read operation + upon EAGAIN. So I'm disabling the DebPrint to avoid + wasting cycles on something that is not a real + problem. Enable if you need to debug something that + bumps into this. */ + DebPrint (("sys_read called when read is in progress %d\n", + current_status)); +#endif errno = EWOULDBLOCK; return -1;