* [PATCH v2] tools/xc: update tty detection in stdiostream_progress
@ 2013-02-27 14:16 Olaf Hering
2013-02-28 16:14 ` Ian Jackson
0 siblings, 1 reply; 2+ messages in thread
From: Olaf Hering @ 2013-02-27 14:16 UTC (permalink / raw)
To: xen-devel; +Cc: Ian Jackson
# HG changeset patch
# User Olaf Hering <olaf@aepfle.de>
# Date 1361974429 -3600
# Node ID c438c98e13163cdb3106917469e3b86226f96168
# Parent dc086ced6b0c7ecf21e56155f42fb16dabe39097
tools/xc: update tty detection in stdiostream_progress
As suggested by IanJ:
Check isatty only once to preserve the errno of ->progress users, and to
reduce the noice in strace output.
v2:
- fix compile error
- rename ->isatty to ->tty
Signed-off-by: Olaf Hering <olaf@aepfle.de>
diff -r dc086ced6b0c -r c438c98e1316 tools/libxc/xtl_logger_stdio.c
--- a/tools/libxc/xtl_logger_stdio.c
+++ b/tools/libxc/xtl_logger_stdio.c
@@ -35,6 +35,7 @@ struct xentoollog_logger_stdiostream {
xentoollog_level min_level;
unsigned flags;
int progress_erase_len, progress_last_percent;
+ int tty;
};
static void progress_erase(xentoollog_logger_stdiostream *lg) {
@@ -118,7 +119,7 @@ static void stdiostream_progress(struct
lg->progress_last_percent = percent;
- if (isatty(fileno(lg->f)) <= 0) {
+ if (!lg->tty) {
stdiostream_message(logger_in, this_level, context,
"%s: %lu/%lu %3d%%",
doing_what, done, total, percent);
@@ -166,6 +167,7 @@ xentoollog_logger_stdiostream *xtl_creat
newlogger.f = f;
newlogger.min_level = min_level;
newlogger.flags = flags;
+ newlogger.tty = isatty(fileno(newlogger.f)) > 0;
if (newlogger.flags & XTL_STDIOSTREAM_SHOW_DATE) tzset();
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH v2] tools/xc: update tty detection in stdiostream_progress
2013-02-27 14:16 [PATCH v2] tools/xc: update tty detection in stdiostream_progress Olaf Hering
@ 2013-02-28 16:14 ` Ian Jackson
0 siblings, 0 replies; 2+ messages in thread
From: Ian Jackson @ 2013-02-28 16:14 UTC (permalink / raw)
To: Olaf Hering; +Cc: xen-devel
Olaf Hering writes ("[PATCH v2] tools/xc: update tty detection in stdiostream_progress"):
> tools/xc: update tty detection in stdiostream_progress
>
> As suggested by IanJ:
> Check isatty only once to preserve the errno of ->progress users, and to
> reduce the noice in strace output.
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Thanks,
Ian.
^ permalink raw reply [flat|nested] 2+ messages in thread
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