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| author | davygrvy <davygrvy@pobox.com> | 2002-12-04 03:59:16 (GMT) |
|---|---|---|
| committer | davygrvy <davygrvy@pobox.com> | 2002-12-04 03:59:16 (GMT) |
| commit | 08fd8ff5e9e7758d796135d08f7b801817ada3f1 (patch) | |
| tree | 421ad51a976aae5d589bdba7e8fb98974b4cc60f /win/tclAppInit.c | |
| parent | a3ffa1319a78d7f38aacc6fc7d885a2f7d23e0df (diff) | |
| download | tcl-08fd8ff5e9e7758d796135d08f7b801817ada3f1.zip tcl-08fd8ff5e9e7758d796135d08f7b801817ada3f1.tar.gz tcl-08fd8ff5e9e7758d796135d08f7b801817ada3f1.tar.bz2 | |
* win/tclAppInit.c (sigHandler): Protect from trying to close a
NULL handle.
* win/tclWinPipe.c (PipeClose2Proc, TclpCreateProcess): Send a
real Win32 signal (CTRL_C_EVENT) when the read channel is brought
down to alert the child to close on its side. Start the process
with CREATE_NEW_PROCESS_GROUP to allow the ability to send these
signals. The following test case now brings down the child
without the use of an external [kill] command.
% set p [open "|[info name]" w+]
file8d5380
% pid $p
2876
% close $p <- now doesn't block in Tcl_WaitPid()
%
Diffstat (limited to 'win/tclAppInit.c')
| -rw-r--r-- | win/tclAppInit.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/win/tclAppInit.c b/win/tclAppInit.c index b589027..864f59a 100644 --- a/win/tclAppInit.c +++ b/win/tclAppInit.c @@ -11,7 +11,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclAppInit.c,v 1.10 2002/11/04 05:50:19 davygrvy Exp $ + * RCS: @(#) $Id: tclAppInit.c,v 1.11 2002/12/04 03:59:17 davygrvy Exp $ */ #include "tcl.h" @@ -376,6 +376,7 @@ asyncExit (ClientData clientData, Tcl_Interp *interp, int code) BOOL __stdcall sigHandler(DWORD fdwCtrlType) { + HANDLE hStdIn; /* * If Tcl is currently executing some bytecode or in the eventloop, * this will cause Tcl to enter asyncExit at the next command @@ -388,8 +389,11 @@ sigHandler(DWORD fdwCtrlType) * This will cause Tcl_Gets in Tcl_Main() to drop-out with an <EOF> * should it be blocked on input and our Tcl_AsyncMark didn't grab * the attention of the interpreter. - */ - CloseHandle(GetStdHandle(STD_INPUT_HANDLE)); + */ + hStdIn = GetStdHandle(STD_INPUT_HANDLE); + if (hStdIn) { + CloseHandle(hStdIn); + } /* indicate to the OS not to call the default terminator */ return TRUE; |