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authorandreas_kupries <akupries@shaw.ca>2009-10-23 19:09:17 (GMT)
committerandreas_kupries <akupries@shaw.ca>2009-10-23 19:09:17 (GMT)
commit4c918aeb8891267ba470fbb2734bc5f0f711df00 (patch)
tree468029f1bc0a420285d97f260766460c10a27ed0 /generic/tclIO.c
parenta14cd9979de8b9856c979aae40f3c8889b2d8d9b (diff)
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* generic/tclIO.c (FlushChannel): Skip OutputProc for low-level
0-length writes. When closing pipes which have already been closed not skipping leads to spurious SIG_PIPE signals. Reported by Mikhail Teterin <mi+thun@aldan.algebra.com>.
Diffstat (limited to 'generic/tclIO.c')
-rw-r--r--generic/tclIO.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/generic/tclIO.c b/generic/tclIO.c
index 28e9fbc..57960f5 100644
--- a/generic/tclIO.c
+++ b/generic/tclIO.c
@@ -10,7 +10,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclIO.c,v 1.163 2009/10/19 22:00:19 dgp Exp $
+ * RCS: @(#) $Id: tclIO.c,v 1.164 2009/10/23 19:09:17 andreas_kupries Exp $
*/
#include "tclInt.h"
@@ -2393,7 +2393,11 @@ FlushChannel(
*/
toWrite = BytesLeft(bufPtr);
- written = ChanWrite(chanPtr, RemovePoint(bufPtr),toWrite, &errorCode);
+ if (toWrite == 0) {
+ written = 0;
+ } else {
+ written = ChanWrite(chanPtr, RemovePoint(bufPtr),toWrite, &errorCode);
+ }
/*
* If the write failed completely attempt to start the asynchronous