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author | Joe Mistachkin <joe@mistachkin.com> | 2003-05-10 04:25:49 (GMT) |
---|---|---|
committer | Joe Mistachkin <joe@mistachkin.com> | 2003-05-10 04:25:49 (GMT) |
commit | 25f83ef2a02cc439021fe8298a5539e90374b3bd (patch) | |
tree | f52520cde8670d9a04f5e98303bb5ba77085997f /win/tclAppInit.c | |
parent | ec1796ef6f61486913d955f2f6a78c340c549d7d (diff) | |
download | tcl-25f83ef2a02cc439021fe8298a5539e90374b3bd.zip tcl-25f83ef2a02cc439021fe8298a5539e90374b3bd.tar.gz tcl-25f83ef2a02cc439021fe8298a5539e90374b3bd.tar.bz2 |
fix bad cvs lf conversion
Diffstat (limited to 'win/tclAppInit.c')
-rw-r--r-- | win/tclAppInit.c | 898 |
1 files changed, 449 insertions, 449 deletions
diff --git a/win/tclAppInit.c b/win/tclAppInit.c index 38fd50d..19acfe0 100644 --- a/win/tclAppInit.c +++ b/win/tclAppInit.c @@ -1,449 +1,449 @@ -/*
- * tclAppInit.c --
- *
- * Provides a default version of the main program and Tcl_AppInit
- * procedure for Tcl applications (without Tk). Note that this
- * program must be built in Win32 console mode to work properly.
- *
- * Copyright (c) 1996-1997 by Sun Microsystems, Inc.
- * Copyright (c) 1998-1999 by Scriptics Corporation.
- *
- * 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 1.12 2003/05/10 02:52:54 mistachkin Exp $
- */
-
-#include "tcl.h"
-#include <windows.h>
-#include <locale.h>
-
-#ifdef TCL_TEST
-extern int Procbodytest_Init _ANSI_ARGS_((Tcl_Interp *interp));
-extern int Procbodytest_SafeInit _ANSI_ARGS_((Tcl_Interp *interp));
-extern int Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp));
-extern int TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp));
-#ifdef TCL_THREADS
-extern int TclThread_Init _ANSI_ARGS_((Tcl_Interp *interp));
-#endif
-#endif /* TCL_TEST */
-
-static void setargv _ANSI_ARGS_((int *argcPtr, char ***argvPtr));
-static BOOL __stdcall sigHandler (DWORD fdwCtrlType);
-static Tcl_AsyncProc asyncExit;
-static void AppInitExitHandler(ClientData clientData);
-
-static char ** argvSave = NULL;
-static Tcl_AsyncHandler exitToken = NULL;
-static DWORD exitErrorCode = 0;
-
-
-/*
- *----------------------------------------------------------------------
- *
- * main --
- *
- * This is the main program for the application.
- *
- * Results:
- * None: Tcl_Main never returns here, so this procedure never
- * returns either.
- *
- * Side effects:
- * Whatever the application does.
- *
- *----------------------------------------------------------------------
- */
-
-int
-main(argc, argv)
- int argc; /* Number of command-line arguments. */
- char **argv; /* Values of command-line arguments. */
-{
- /*
- * The following #if block allows you to change the AppInit
- * function by using a #define of TCL_LOCAL_APPINIT instead
- * of rewriting this entire file. The #if checks for that
- * #define and uses Tcl_AppInit if it doesn't exist.
- */
-
-#ifndef TCL_LOCAL_APPINIT
-#define TCL_LOCAL_APPINIT Tcl_AppInit
-#endif
- extern int TCL_LOCAL_APPINIT _ANSI_ARGS_((Tcl_Interp *interp));
-
- /*
- * The following #if block allows you to change how Tcl finds the startup
- * script, prime the library or encoding paths, fiddle with the argv,
- * etc., without needing to rewrite Tcl_Main()
- */
-
-#ifdef TCL_LOCAL_MAIN_HOOK
- extern int TCL_LOCAL_MAIN_HOOK _ANSI_ARGS_((int *argc, char ***argv));
-#endif
-
- char buffer[MAX_PATH +1];
- char *p;
- /*
- * Set up the default locale to be standard "C" locale so parsing
- * is performed correctly.
- */
-
- setlocale(LC_ALL, "C");
- setargv(&argc, &argv);
-
- /*
- * Save this for later, so we can free it.
- */
- argvSave = argv;
-
- /*
- * Replace argv[0] with full pathname of executable, and forward
- * slashes substituted for backslashes.
- */
-
- GetModuleFileName(NULL, buffer, sizeof(buffer));
- argv[0] = buffer;
- for (p = buffer; *p != '\0'; p++) {
- if (*p == '\\') {
- *p = '/';
- }
- }
-
-#ifdef TCL_LOCAL_MAIN_HOOK
- TCL_LOCAL_MAIN_HOOK(&argc, &argv);
-#endif
-
- Tcl_Main(argc, argv, TCL_LOCAL_APPINIT);
-
- return 0; /* Needed only to prevent compiler warning. */
-}
-
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_AppInit --
- *
- * This procedure performs application-specific initialization.
- * Most applications, especially those that incorporate additional
- * packages, will have their own version of this procedure.
- *
- * Results:
- * Returns a standard Tcl completion code, and leaves an error
- * message in the interp's result if an error occurs.
- *
- * Side effects:
- * Depends on the startup script.
- *
- *----------------------------------------------------------------------
- */
-
-int
-Tcl_AppInit(interp)
- Tcl_Interp *interp; /* Interpreter for application. */
-{
- if (Tcl_Init(interp) == TCL_ERROR) {
- return TCL_ERROR;
- }
-
- /*
- * Install a signal handler to the win32 console tclsh is running in.
- */
- SetConsoleCtrlHandler(sigHandler, TRUE);
- exitToken = Tcl_AsyncCreate(asyncExit, NULL);
-
- /*
- * This exit handler will be used to free the
- * resources allocated in this file.
- */
- Tcl_CreateExitHandler(AppInitExitHandler, NULL);
-
-#ifdef TCL_TEST
- if (Tcltest_Init(interp) == TCL_ERROR) {
- return TCL_ERROR;
- }
- Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init,
- (Tcl_PackageInitProc *) NULL);
- if (TclObjTest_Init(interp) == TCL_ERROR) {
- return TCL_ERROR;
- }
-#ifdef TCL_THREADS
- if (TclThread_Init(interp) == TCL_ERROR) {
- return TCL_ERROR;
- }
-#endif
- if (Procbodytest_Init(interp) == TCL_ERROR) {
- return TCL_ERROR;
- }
- Tcl_StaticPackage(interp, "procbodytest", Procbodytest_Init,
- Procbodytest_SafeInit);
-#endif /* TCL_TEST */
-
-#if defined(STATIC_BUILD) && defined(TCL_USE_STATIC_PACKAGES)
- {
- extern Tcl_PackageInitProc Registry_Init;
- extern Tcl_PackageInitProc Dde_Init;
-
- if (Registry_Init(interp) == TCL_ERROR) {
- return TCL_ERROR;
- }
- Tcl_StaticPackage(interp, "registry", Registry_Init, NULL);
-
- if (Dde_Init(interp) == TCL_ERROR) {
- return TCL_ERROR;
- }
- Tcl_StaticPackage(interp, "dde", Dde_Init, NULL);
- }
-#endif
-
- /*
- * Call the init procedures for included packages. Each call should
- * look like this:
- *
- * if (Mod_Init(interp) == TCL_ERROR) {
- * return TCL_ERROR;
- * }
- *
- * where "Mod" is the name of the module.
- */
-
- /*
- * Call Tcl_CreateCommand for application-specific commands, if
- * they weren't already created by the init procedures called above.
- */
-
- /*
- * Specify a user-specific startup file to invoke if the application
- * is run interactively. Typically the startup file is "~/.apprc"
- * where "app" is the name of the application. If this line is deleted
- * then no user-specific startup file will be run under any conditions.
- */
-
- Tcl_SetVar(interp, "tcl_rcFileName", "~/tclshrc.tcl", TCL_GLOBAL_ONLY);
- return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * AppInitExitHandler --
- *
- * This function is called to cleanup the app init resources before
- * Tcl is unloaded.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Frees the saved argv and deletes the async exit handler.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-AppInitExitHandler(
- ClientData clientData)
-{
- if (argvSave != NULL) {
- ckfree((char *)argvSave);
- argvSave = NULL;
- }
-
- if (exitToken != NULL) {
- /*
- * This should be safe to do even if we
- * are in an async exit right now.
- */
- Tcl_AsyncDelete(exitToken);
- exitToken = NULL;
- }
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * setargv --
- *
- * Parse the Windows command line string into argc/argv. Done here
- * because we don't trust the builtin argument parser in crt0.
- * Windows applications are responsible for breaking their command
- * line into arguments.
- *
- * 2N backslashes + quote -> N backslashes + begin quoted string
- * 2N + 1 backslashes + quote -> literal
- * N backslashes + non-quote -> literal
- * quote + quote in a quoted string -> single quote
- * quote + quote not in quoted string -> empty string
- * quote -> begin quoted string
- *
- * Results:
- * Fills argcPtr with the number of arguments and argvPtr with the
- * array of arguments.
- *
- * Side effects:
- * Memory allocated.
- *
- *--------------------------------------------------------------------------
- */
-
-static void
-setargv(argcPtr, argvPtr)
- int *argcPtr; /* Filled with number of argument strings. */
- char ***argvPtr; /* Filled with argument strings (malloc'd). */
-{
- char *cmdLine, *p, *arg, *argSpace;
- char **argv;
- int argc, size, inquote, copy, slashes;
-
- cmdLine = GetCommandLine(); /* INTL: BUG */
-
- /*
- * Precompute an overly pessimistic guess at the number of arguments
- * in the command line by counting non-space spans.
- */
-
- size = 2;
- for (p = cmdLine; *p != '\0'; p++) {
- if ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
- size++;
- while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
- p++;
- }
- if (*p == '\0') {
- break;
- }
- }
- }
- argSpace = (char *) Tcl_Alloc(
- (unsigned) (size * sizeof(char *) + strlen(cmdLine) + 1));
- argv = (char **) argSpace;
- argSpace += size * sizeof(char *);
- size--;
-
- p = cmdLine;
- for (argc = 0; argc < size; argc++) {
- argv[argc] = arg = argSpace;
- while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
- p++;
- }
- if (*p == '\0') {
- break;
- }
-
- inquote = 0;
- slashes = 0;
- while (1) {
- copy = 1;
- while (*p == '\\') {
- slashes++;
- p++;
- }
- if (*p == '"') {
- if ((slashes & 1) == 0) {
- copy = 0;
- if ((inquote) && (p[1] == '"')) {
- p++;
- copy = 1;
- } else {
- inquote = !inquote;
- }
- }
- slashes >>= 1;
- }
-
- while (slashes) {
- *arg = '\\';
- arg++;
- slashes--;
- }
-
- if ((*p == '\0')
- || (!inquote && ((*p == ' ') || (*p == '\t')))) { /* INTL: ISO space. */
- break;
- }
- if (copy != 0) {
- *arg = *p;
- arg++;
- }
- p++;
- }
- *arg = '\0';
- argSpace = arg + 1;
- }
- argv[argc] = NULL;
-
- *argcPtr = argc;
- *argvPtr = argv;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * asyncExit --
- *
- * The AsyncProc for the exitToken.
- *
- * Results:
- * doesn't actually return.
- *
- * Side effects:
- * tclsh cleanly exits.
- *
- *----------------------------------------------------------------------
- */
-
-int
-asyncExit (ClientData clientData, Tcl_Interp *interp, int code)
-{
- Tcl_Exit((int)exitErrorCode);
-
- /* NOTREACHED */
- return code;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * sigHandler --
- *
- * Signal handler for the Win32 OS. Catches Ctrl+C, Ctrl+Break and
- * other exits. This is needed so tclsh can do it's real clean-up
- * and not an unclean crash terminate.
- *
- * Results:
- * TRUE.
- *
- * Side effects:
- * Effects the way the app exits from a signal. This is an
- * operating system supplied thread and unsafe to call ANY
- * Tcl commands except for Tcl_AsyncMark.
- *
- *----------------------------------------------------------------------
- */
-
-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
- * boundry.
- */
- exitErrorCode = fdwCtrlType;
- Tcl_AsyncMark(exitToken);
-
- /*
- * 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.
- */
- hStdIn = GetStdHandle(STD_INPUT_HANDLE);
- if (hStdIn) {
- CloseHandle(hStdIn);
- }
-
- /* indicate to the OS not to call the default terminator */
- return TRUE;
-}
+/* + * tclAppInit.c -- + * + * Provides a default version of the main program and Tcl_AppInit + * procedure for Tcl applications (without Tk). Note that this + * program must be built in Win32 console mode to work properly. + * + * Copyright (c) 1996-1997 by Sun Microsystems, Inc. + * Copyright (c) 1998-1999 by Scriptics Corporation. + * + * 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 1.13 2003/05/10 04:25:49 mistachkin Exp $ + */ + +#include "tcl.h" +#include <windows.h> +#include <locale.h> + +#ifdef TCL_TEST +extern int Procbodytest_Init _ANSI_ARGS_((Tcl_Interp *interp)); +extern int Procbodytest_SafeInit _ANSI_ARGS_((Tcl_Interp *interp)); +extern int Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp)); +extern int TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp)); +#ifdef TCL_THREADS +extern int TclThread_Init _ANSI_ARGS_((Tcl_Interp *interp)); +#endif +#endif /* TCL_TEST */ + +static void setargv _ANSI_ARGS_((int *argcPtr, char ***argvPtr)); +static BOOL __stdcall sigHandler (DWORD fdwCtrlType); +static Tcl_AsyncProc asyncExit; +static void AppInitExitHandler(ClientData clientData); + +static char ** argvSave = NULL; +static Tcl_AsyncHandler exitToken = NULL; +static DWORD exitErrorCode = 0; + + +/* + *---------------------------------------------------------------------- + * + * main -- + * + * This is the main program for the application. + * + * Results: + * None: Tcl_Main never returns here, so this procedure never + * returns either. + * + * Side effects: + * Whatever the application does. + * + *---------------------------------------------------------------------- + */ + +int +main(argc, argv) + int argc; /* Number of command-line arguments. */ + char **argv; /* Values of command-line arguments. */ +{ + /* + * The following #if block allows you to change the AppInit + * function by using a #define of TCL_LOCAL_APPINIT instead + * of rewriting this entire file. The #if checks for that + * #define and uses Tcl_AppInit if it doesn't exist. + */ + +#ifndef TCL_LOCAL_APPINIT +#define TCL_LOCAL_APPINIT Tcl_AppInit +#endif + extern int TCL_LOCAL_APPINIT _ANSI_ARGS_((Tcl_Interp *interp)); + + /* + * The following #if block allows you to change how Tcl finds the startup + * script, prime the library or encoding paths, fiddle with the argv, + * etc., without needing to rewrite Tcl_Main() + */ + +#ifdef TCL_LOCAL_MAIN_HOOK + extern int TCL_LOCAL_MAIN_HOOK _ANSI_ARGS_((int *argc, char ***argv)); +#endif + + char buffer[MAX_PATH +1]; + char *p; + /* + * Set up the default locale to be standard "C" locale so parsing + * is performed correctly. + */ + + setlocale(LC_ALL, "C"); + setargv(&argc, &argv); + + /* + * Save this for later, so we can free it. + */ + argvSave = argv; + + /* + * Replace argv[0] with full pathname of executable, and forward + * slashes substituted for backslashes. + */ + + GetModuleFileName(NULL, buffer, sizeof(buffer)); + argv[0] = buffer; + for (p = buffer; *p != '\0'; p++) { + if (*p == '\\') { + *p = '/'; + } + } + +#ifdef TCL_LOCAL_MAIN_HOOK + TCL_LOCAL_MAIN_HOOK(&argc, &argv); +#endif + + Tcl_Main(argc, argv, TCL_LOCAL_APPINIT); + + return 0; /* Needed only to prevent compiler warning. */ +} + + +/* + *---------------------------------------------------------------------- + * + * Tcl_AppInit -- + * + * This procedure performs application-specific initialization. + * Most applications, especially those that incorporate additional + * packages, will have their own version of this procedure. + * + * Results: + * Returns a standard Tcl completion code, and leaves an error + * message in the interp's result if an error occurs. + * + * Side effects: + * Depends on the startup script. + * + *---------------------------------------------------------------------- + */ + +int +Tcl_AppInit(interp) + Tcl_Interp *interp; /* Interpreter for application. */ +{ + if (Tcl_Init(interp) == TCL_ERROR) { + return TCL_ERROR; + } + + /* + * Install a signal handler to the win32 console tclsh is running in. + */ + SetConsoleCtrlHandler(sigHandler, TRUE); + exitToken = Tcl_AsyncCreate(asyncExit, NULL); + + /* + * This exit handler will be used to free the + * resources allocated in this file. + */ + Tcl_CreateExitHandler(AppInitExitHandler, NULL); + +#ifdef TCL_TEST + if (Tcltest_Init(interp) == TCL_ERROR) { + return TCL_ERROR; + } + Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init, + (Tcl_PackageInitProc *) NULL); + if (TclObjTest_Init(interp) == TCL_ERROR) { + return TCL_ERROR; + } +#ifdef TCL_THREADS + if (TclThread_Init(interp) == TCL_ERROR) { + return TCL_ERROR; + } +#endif + if (Procbodytest_Init(interp) == TCL_ERROR) { + return TCL_ERROR; + } + Tcl_StaticPackage(interp, "procbodytest", Procbodytest_Init, + Procbodytest_SafeInit); +#endif /* TCL_TEST */ + +#if defined(STATIC_BUILD) && defined(TCL_USE_STATIC_PACKAGES) + { + extern Tcl_PackageInitProc Registry_Init; + extern Tcl_PackageInitProc Dde_Init; + + if (Registry_Init(interp) == TCL_ERROR) { + return TCL_ERROR; + } + Tcl_StaticPackage(interp, "registry", Registry_Init, NULL); + + if (Dde_Init(interp) == TCL_ERROR) { + return TCL_ERROR; + } + Tcl_StaticPackage(interp, "dde", Dde_Init, NULL); + } +#endif + + /* + * Call the init procedures for included packages. Each call should + * look like this: + * + * if (Mod_Init(interp) == TCL_ERROR) { + * return TCL_ERROR; + * } + * + * where "Mod" is the name of the module. + */ + + /* + * Call Tcl_CreateCommand for application-specific commands, if + * they weren't already created by the init procedures called above. + */ + + /* + * Specify a user-specific startup file to invoke if the application + * is run interactively. Typically the startup file is "~/.apprc" + * where "app" is the name of the application. If this line is deleted + * then no user-specific startup file will be run under any conditions. + */ + + Tcl_SetVar(interp, "tcl_rcFileName", "~/tclshrc.tcl", TCL_GLOBAL_ONLY); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * AppInitExitHandler -- + * + * This function is called to cleanup the app init resources before + * Tcl is unloaded. + * + * Results: + * None. + * + * Side effects: + * Frees the saved argv and deletes the async exit handler. + * + *---------------------------------------------------------------------- + */ + +static void +AppInitExitHandler( + ClientData clientData) +{ + if (argvSave != NULL) { + ckfree((char *)argvSave); + argvSave = NULL; + } + + if (exitToken != NULL) { + /* + * This should be safe to do even if we + * are in an async exit right now. + */ + Tcl_AsyncDelete(exitToken); + exitToken = NULL; + } +} + +/* + *------------------------------------------------------------------------- + * + * setargv -- + * + * Parse the Windows command line string into argc/argv. Done here + * because we don't trust the builtin argument parser in crt0. + * Windows applications are responsible for breaking their command + * line into arguments. + * + * 2N backslashes + quote -> N backslashes + begin quoted string + * 2N + 1 backslashes + quote -> literal + * N backslashes + non-quote -> literal + * quote + quote in a quoted string -> single quote + * quote + quote not in quoted string -> empty string + * quote -> begin quoted string + * + * Results: + * Fills argcPtr with the number of arguments and argvPtr with the + * array of arguments. + * + * Side effects: + * Memory allocated. + * + *-------------------------------------------------------------------------- + */ + +static void +setargv(argcPtr, argvPtr) + int *argcPtr; /* Filled with number of argument strings. */ + char ***argvPtr; /* Filled with argument strings (malloc'd). */ +{ + char *cmdLine, *p, *arg, *argSpace; + char **argv; + int argc, size, inquote, copy, slashes; + + cmdLine = GetCommandLine(); /* INTL: BUG */ + + /* + * Precompute an overly pessimistic guess at the number of arguments + * in the command line by counting non-space spans. + */ + + size = 2; + for (p = cmdLine; *p != '\0'; p++) { + if ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */ + size++; + while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */ + p++; + } + if (*p == '\0') { + break; + } + } + } + argSpace = (char *) Tcl_Alloc( + (unsigned) (size * sizeof(char *) + strlen(cmdLine) + 1)); + argv = (char **) argSpace; + argSpace += size * sizeof(char *); + size--; + + p = cmdLine; + for (argc = 0; argc < size; argc++) { + argv[argc] = arg = argSpace; + while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */ + p++; + } + if (*p == '\0') { + break; + } + + inquote = 0; + slashes = 0; + while (1) { + copy = 1; + while (*p == '\\') { + slashes++; + p++; + } + if (*p == '"') { + if ((slashes & 1) == 0) { + copy = 0; + if ((inquote) && (p[1] == '"')) { + p++; + copy = 1; + } else { + inquote = !inquote; + } + } + slashes >>= 1; + } + + while (slashes) { + *arg = '\\'; + arg++; + slashes--; + } + + if ((*p == '\0') + || (!inquote && ((*p == ' ') || (*p == '\t')))) { /* INTL: ISO space. */ + break; + } + if (copy != 0) { + *arg = *p; + arg++; + } + p++; + } + *arg = '\0'; + argSpace = arg + 1; + } + argv[argc] = NULL; + + *argcPtr = argc; + *argvPtr = argv; +} + +/* + *---------------------------------------------------------------------- + * + * asyncExit -- + * + * The AsyncProc for the exitToken. + * + * Results: + * doesn't actually return. + * + * Side effects: + * tclsh cleanly exits. + * + *---------------------------------------------------------------------- + */ + +int +asyncExit (ClientData clientData, Tcl_Interp *interp, int code) +{ + Tcl_Exit((int)exitErrorCode); + + /* NOTREACHED */ + return code; +} + +/* + *---------------------------------------------------------------------- + * + * sigHandler -- + * + * Signal handler for the Win32 OS. Catches Ctrl+C, Ctrl+Break and + * other exits. This is needed so tclsh can do it's real clean-up + * and not an unclean crash terminate. + * + * Results: + * TRUE. + * + * Side effects: + * Effects the way the app exits from a signal. This is an + * operating system supplied thread and unsafe to call ANY + * Tcl commands except for Tcl_AsyncMark. + * + *---------------------------------------------------------------------- + */ + +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 + * boundry. + */ + exitErrorCode = fdwCtrlType; + Tcl_AsyncMark(exitToken); + + /* + * 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. + */ + hStdIn = GetStdHandle(STD_INPUT_HANDLE); + if (hStdIn) { + CloseHandle(hStdIn); + } + + /* indicate to the OS not to call the default terminator */ + return TRUE; +} |