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-rw-r--r--win/tclWinConsole.c80
1 files changed, 69 insertions, 11 deletions
diff --git a/win/tclWinConsole.c b/win/tclWinConsole.c
index 6d3709c..2370a22 100644
--- a/win/tclWinConsole.c
+++ b/win/tclWinConsole.c
@@ -9,7 +9,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclWinConsole.c,v 1.11 2002/11/26 22:41:58 davygrvy Exp $
+ * RCS: @(#) $Id: tclWinConsole.c,v 1.11.2.1 2005/01/27 22:53:37 andreas_kupries Exp $
*/
#include "tclWinInt.h"
@@ -148,7 +148,7 @@ static int ConsoleEventProc(Tcl_Event *evPtr, int flags);
static void ConsoleExitHandler(ClientData clientData);
static int ConsoleGetHandleProc(ClientData instanceData,
int direction, ClientData *handlePtr);
-static ThreadSpecificData *ConsoleInit(void);
+static void ConsoleInit(void);
static int ConsoleInputProc(ClientData instanceData, char *buf,
int toRead, int *errorCode);
static int ConsoleOutputProc(ClientData instanceData,
@@ -160,6 +160,9 @@ static DWORD WINAPI ConsoleWriterThread(LPVOID arg);
static void ProcExitHandler(ClientData clientData);
static int WaitForRead(ConsoleInfo *infoPtr, int blocking);
+static void ConsoleThreadActionProc _ANSI_ARGS_ ((
+ ClientData instanceData, int action));
+
/*
* This structure describes the channel type structure for command console
* based IO.
@@ -167,7 +170,7 @@ static int WaitForRead(ConsoleInfo *infoPtr, int blocking);
static Tcl_ChannelType consoleChannelType = {
"console", /* Type name. */
- TCL_CHANNEL_VERSION_2, /* v2 channel */
+ TCL_CHANNEL_VERSION_4, /* v4 channel */
ConsoleCloseProc, /* Close proc. */
ConsoleInputProc, /* Input proc. */
ConsoleOutputProc, /* Output proc. */
@@ -180,6 +183,8 @@ static Tcl_ChannelType consoleChannelType = {
ConsoleBlockModeProc, /* Set blocking or non-blocking mode.*/
NULL, /* flush proc. */
NULL, /* handler proc. */
+ NULL, /* wide seek proc */
+ ConsoleThreadActionProc, /* thread action proc */
};
/*
@@ -198,7 +203,7 @@ static Tcl_ChannelType consoleChannelType = {
*----------------------------------------------------------------------
*/
-static ThreadSpecificData *
+static void
ConsoleInit()
{
ThreadSpecificData *tsdPtr;
@@ -224,7 +229,6 @@ ConsoleInit()
Tcl_CreateEventSource(ConsoleSetupProc, ConsoleCheckProc, NULL);
Tcl_CreateThreadExitHandler(ConsoleExitHandler, NULL);
}
- return tsdPtr;
}
/*
@@ -1170,7 +1174,10 @@ ConsoleReaderThread(LPVOID arg)
*/
Tcl_MutexLock(&consoleMutex);
- Tcl_ThreadAlert(infoPtr->threadId);
+ if (infoPtr->threadId != NULL) {
+ /* TIP #218. When in flight ignore the event, no one will receive it anyway */
+ Tcl_ThreadAlert(infoPtr->threadId);
+ }
Tcl_MutexUnlock(&consoleMutex);
}
@@ -1256,7 +1263,10 @@ ConsoleWriterThread(LPVOID arg)
*/
Tcl_MutexLock(&consoleMutex);
- Tcl_ThreadAlert(infoPtr->threadId);
+ if (infoPtr->threadId != NULL) {
+ /* TIP #218. When in flight ignore the event, no one will receive it anyway */
+ Tcl_ThreadAlert(infoPtr->threadId);
+ }
Tcl_MutexUnlock(&consoleMutex);
}
@@ -1291,10 +1301,9 @@ TclWinOpenConsoleChannel(handle, channelName, permissions)
{
char encoding[4 + TCL_INTEGER_SPACE];
ConsoleInfo *infoPtr;
- ThreadSpecificData *tsdPtr;
DWORD id, modes;
- tsdPtr = ConsoleInit();
+ ConsoleInit();
/*
* See if a channel with this handle already exists.
@@ -1305,9 +1314,12 @@ TclWinOpenConsoleChannel(handle, channelName, permissions)
infoPtr->validMask = permissions;
infoPtr->handle = handle;
+ infoPtr->channel = (Tcl_Channel) NULL;
wsprintfA(encoding, "cp%d", GetConsoleCP());
+ infoPtr->threadId = Tcl_GetCurrentThread();
+
/*
* Use the pointer for the name of the result channel.
* This keeps the channel names unique, since some may share
@@ -1319,8 +1331,6 @@ TclWinOpenConsoleChannel(handle, channelName, permissions)
infoPtr->channel = Tcl_CreateChannel(&consoleChannelType, channelName,
(ClientData) infoPtr, permissions);
- infoPtr->threadId = Tcl_GetCurrentThread();
-
if (permissions & TCL_READABLE) {
/*
* Make sure the console input buffer is ready for only character
@@ -1361,3 +1371,51 @@ TclWinOpenConsoleChannel(handle, channelName, permissions)
return infoPtr->channel;
}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ConsoleThreadActionProc --
+ *
+ * Insert or remove any thread local refs to this channel.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Changes thread local list of valid channels.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+ConsoleThreadActionProc (instanceData, action)
+ ClientData instanceData;
+ int action;
+{
+ ConsoleInfo *infoPtr = (ConsoleInfo *) instanceData;
+
+ /* We do not access firstConsolePtr in the thread structures. This is
+ * not for all serials managed by the thread, but only those we are
+ * watching. Removal of the filevent handlers before transfer thus
+ * takes care of this structure.
+ */
+
+ Tcl_MutexLock(&consoleMutex);
+ if (action == TCL_CHANNEL_THREAD_INSERT) {
+ /* We can't copy the thread information from the channel when
+ * the channel is created. At this time the channel back
+ * pointer has not been set yet. However in that case the
+ * threadId has already been set by TclpCreateCommandChannel
+ * itself, so the structure is still good.
+ */
+
+ ConsoleInit ();
+ if (infoPtr->channel != NULL) {
+ infoPtr->threadId = Tcl_GetChannelThread (infoPtr->channel);
+ }
+ } else {
+ infoPtr->threadId = NULL;
+ }
+ Tcl_MutexUnlock(&consoleMutex);
+}