diff options
Diffstat (limited to 'win/tclWinDde.c')
| -rw-r--r-- | win/tclWinDde.c | 1885 |
1 files changed, 844 insertions, 1041 deletions
diff --git a/win/tclWinDde.c b/win/tclWinDde.c index 4a47684..00e41a9 100644 --- a/win/tclWinDde.c +++ b/win/tclWinDde.c @@ -1,33 +1,33 @@ -/* +/* * tclWinDde.c -- * - * This file provides functions that implement the "send" command, - * allowing commands to be passed from interpreter to interpreter. + * This file provides procedures that implement the "send" + * command, allowing commands to be passed from interpreter + * to interpreter. * * Copyright (c) 1997 by Sun Microsystems, Inc. * - * See the file "license.terms" for information on usage and redistribution of - * this file, and for a DISCLAIMER OF ALL WARRANTIES. + * See the file "license.terms" for information on usage and redistribution + * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclWinDde.c,v 1.13.2.6 2006/04/05 16:50:04 dgp Exp $ + * RCS: @(#) $Id: tclWinDde.c,v 1.13.2.7 2006/04/05 20:50:46 dgp Exp $ */ -#include "tclInt.h" +#include "tclPort.h" #include <dde.h> #include <ddeml.h> #include <tchar.h> /* - * TCL_STORAGE_CLASS is set unconditionally to DLLEXPORT because the Dde_Init - * declaration is in the source file itself, which is only accessed when we - * are building a library. DO NOT MOVE BEFORE ANY #include LINES. ONLY USE - * EXTERN TO INDICATE EXPORTED FUNCTIONS FROM NOW ON. + * TCL_STORAGE_CLASS is set unconditionally to DLLEXPORT because the + * Registry_Init declaration is in the source file itself, which is only + * accessed when we are building a library. */ #undef TCL_STORAGE_CLASS #define TCL_STORAGE_CLASS DLLEXPORT -/* +/* * The following structure is used to keep track of the interpreters * registered by this process. */ @@ -37,7 +37,6 @@ typedef struct RegisteredInterp { /* The next interp this application knows * about. */ char *name; /* Interpreter's name (malloc-ed). */ - Tcl_Obj *handlerPtr; /* The server handler command */ Tcl_Interp *interp; /* The interpreter attached to this name. */ } RegisteredInterp; @@ -53,77 +52,64 @@ typedef struct Conversation { Tcl_Obj *returnPackagePtr; /* The result package for this conversation. */ } Conversation; -typedef struct DdeEnumServices { - Tcl_Interp *interp; - int result; - ATOM service; - ATOM topic; - HWND hwnd; -} DdeEnumServices; - typedef struct ThreadSpecificData { Conversation *currentConversations; - /* A list of conversations currently being - * processed. */ + /* A list of conversations currently + * being processed. */ RegisteredInterp *interpListPtr; - /* List of all interpreters registered in the - * current process. */ + /* List of all interpreters registered + * in the current process. */ } ThreadSpecificData; static Tcl_ThreadDataKey dataKey; /* - * The following variables cannot be placed in thread-local storage. The Mutex - * ddeMutex guards access to the ddeInstance. + * The following variables cannot be placed in thread-local storage. + * The Mutex ddeMutex guards access to the ddeInstance. */ - static HSZ ddeServiceGlobal = 0; -static DWORD ddeInstance; /* The application instance handle given to us - * by DdeInitialize. */ +static DWORD ddeInstance; /* The application instance handle given + * to us by DdeInitialize. */ static int ddeIsServer = 0; -#define TCL_DDE_VERSION "1.3.2" -#define TCL_DDE_PACKAGE_NAME "dde" -#define TCL_DDE_SERVICE_NAME "TclEval" -#define TCL_DDE_EXECUTE_RESULT "$TCLEVAL$EXECUTE$RESULT" +#define TCL_DDE_VERSION "1.2.4" +#define TCL_DDE_PACKAGE_NAME "dde" +#define TCL_DDE_SERVICE_NAME "TclEval" TCL_DECLARE_MUTEX(ddeMutex) /* - * Forward declarations for functions defined later in this file. + * Forward declarations for procedures defined later in this file. */ -static LRESULT CALLBACK DdeClientWindowProc(HWND hwnd, UINT uMsg, - WPARAM wParam, LPARAM lParam); -static int DdeCreateClient(struct DdeEnumServices *es); -static BOOL CALLBACK DdeEnumWindowsCallback(HWND hwndTarget, LPARAM lParam); -static void DdeExitProc(ClientData clientData); -static int DdeGetServicesList(Tcl_Interp *interp, - char *serviceName, char *topicName); -static HDDEDATA CALLBACK DdeServerProc(UINT uType, UINT uFmt, HCONV hConv, - HSZ ddeTopic, HSZ ddeItem, HDDEDATA hData, - DWORD dwData1, DWORD dwData2); -static LRESULT DdeServicesOnAck(HWND hwnd, WPARAM wParam, - LPARAM lParam); -static void DeleteProc(ClientData clientData); -static Tcl_Obj * ExecuteRemoteObject(RegisteredInterp *riPtr, - Tcl_Obj *ddeObjectPtr); -static int MakeDdeConnection(Tcl_Interp *interp, char *name, - HCONV *ddeConvPtr); -static void SetDdeError(Tcl_Interp *interp); - -int Tcl_DdeObjCmd(ClientData clientData, - Tcl_Interp *interp, int objc, - Tcl_Obj *CONST objv[]); - -EXTERN int Dde_Init(Tcl_Interp *interp); -EXTERN int Dde_SafeInit(Tcl_Interp *interp); +static void DdeExitProc _ANSI_ARGS_((ClientData clientData)); +static void DeleteProc _ANSI_ARGS_((ClientData clientData)); +static Tcl_Obj * ExecuteRemoteObject _ANSI_ARGS_(( + RegisteredInterp *riPtr, + Tcl_Obj *ddeObjectPtr)); +static int MakeDdeConnection _ANSI_ARGS_((Tcl_Interp *interp, + char *name, HCONV *ddeConvPtr)); +static HDDEDATA CALLBACK DdeServerProc _ANSI_ARGS_((UINT uType, + UINT uFmt, HCONV hConv, HSZ ddeTopic, + HSZ ddeItem, HDDEDATA hData, DWORD dwData1, + DWORD dwData2)); +static void SetDdeError _ANSI_ARGS_((Tcl_Interp *interp)); +static int DdeGetServicesList _ANSI_ARGS_(( + Tcl_Interp *interp, + char *serviceName, + char *topicName)); +int Tcl_DdeObjCmd(ClientData clientData, /* Used only for deletion */ + Tcl_Interp *interp, /* The interp we are sending from */ + int objc, /* Number of arguments */ + Tcl_Obj *CONST objv[]); /* The arguments */ + +EXTERN int Dde_Init(Tcl_Interp *interp); /* *---------------------------------------------------------------------- * * Dde_Init -- * - * This function initializes the dde command. + * This procedure initializes the dde command. * * Results: * A standard Tcl result. @@ -145,36 +131,12 @@ Dde_Init( } Tcl_CreateObjCommand(interp, "dde", Tcl_DdeObjCmd, NULL, NULL); + tsdPtr = TCL_TSD_INIT(&dataKey); + Tcl_CreateExitHandler(DdeExitProc, NULL); - return Tcl_PkgProvide(interp, TCL_DDE_PACKAGE_NAME, TCL_DDE_VERSION); -} - -/* - *---------------------------------------------------------------------- - * - * Dde_SafeInit -- - * - * This function initializes the dde command within a safe interp - * - * Results: - * A standard Tcl result. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ -int -Dde_SafeInit( - Tcl_Interp *interp) -{ - int result = Dde_Init(interp); - if (result == TCL_OK) { - Tcl_HideCommand(interp, "dde", "dde"); - } - return result; + return Tcl_PkgProvide(interp, TCL_DDE_PACKAGE_NAME, TCL_DDE_VERSION); } /* @@ -198,11 +160,11 @@ Initialize(void) { int nameFound = 0; ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); - + /* - * See if the application is already registered; if so, remove its current - * name from the registry. The deletion of the command will take care of - * disposing of this entry. + * See if the application is already registered; if so, remove its + * current name from the registry. The deletion of the command + * will take care of disposing of this entry. */ if (tsdPtr->interpListPtr != NULL) { @@ -210,16 +172,18 @@ Initialize(void) } /* - * Make sure that the DDE server is there. This is done only once, add an - * exit handler tear it down. + * Make sure that the DDE server is there. This is done only once, + * add an exit handler tear it down. */ if (ddeInstance == 0) { Tcl_MutexLock(&ddeMutex); if (ddeInstance == 0) { if (DdeInitialize(&ddeInstance, DdeServerProc, - CBF_SKIP_REGISTRATIONS | CBF_SKIP_UNREGISTRATIONS - | CBF_FAIL_POKES, 0) != DMLERR_NO_ERROR) { + CBF_SKIP_REGISTRATIONS + | CBF_SKIP_UNREGISTRATIONS + | CBF_FAIL_POKES, 0) + != DMLERR_NO_ERROR) { ddeInstance = 0; } } @@ -230,7 +194,7 @@ Initialize(void) if ((ddeServiceGlobal == 0) && (nameFound != 0)) { ddeIsServer = 1; Tcl_CreateExitHandler(DdeExitProc, NULL); - ddeServiceGlobal = DdeCreateStringHandle(ddeInstance, + ddeServiceGlobal = DdeCreateStringHandle(ddeInstance, \ TCL_DDE_SERVICE_NAME, 0); DdeNameService(ddeInstance, ddeServiceGlobal, 0L, DNS_REGISTER); } else { @@ -238,58 +202,54 @@ Initialize(void) } Tcl_MutexUnlock(&ddeMutex); } -} +} /* - *---------------------------------------------------------------------- + *-------------------------------------------------------------- * * DdeSetServerName -- * - * This function is called to associate an ASCII name with a Dde server. - * If the interpreter has already been named, the name replaces the old - * one. + * This procedure is called to associate an ASCII name with a Dde + * server. If the interpreter has already been named, the + * name replaces the old one. * * Results: - * The return value is the name actually given to the interp. This will - * normally be the same as name, but if name was already in use for a Dde - * Server then a name of the form "name #2" will be chosen, with a high - * enough number to make the name unique. + * The return value is the name actually given to the interp. + * This will normally be the same as name, but if name was already + * in use for a Dde Server then a name of the form "name #2" will + * be chosen, with a high enough number to make the name unique. * * Side effects: - * Registration info is saved, thereby allowing the "send" command to be - * used later to invoke commands in the application. In addition, the - * "send" command is created in the application's interpreter. The - * registration will be removed automatically if the interpreter is - * deleted or the "send" command is removed. + * Registration info is saved, thereby allowing the "send" command + * to be used later to invoke commands in the application. In + * addition, the "send" command is created in the application's + * interpreter. The registration will be removed automatically + * if the interpreter is deleted or the "send" command is removed. * - *---------------------------------------------------------------------- + *-------------------------------------------------------------- */ static char * DdeSetServerName( Tcl_Interp *interp, - char *name, /* The name that will be used to refer to the - * interpreter in later "send" commands. Must - * be globally unique. */ - int exactName, /* Should we make a unique name? 0 = unique */ - Tcl_Obj *handlerPtr) /* Name of the optional proc/command to handle - * incoming Dde eval's */ + char *name /* The name that will be used to + * refer to the interpreter in later + * "send" commands. Must be globally + * unique. */ + ) { int suffix, offset; RegisteredInterp *riPtr, *prevPtr; Tcl_DString dString; - char *actualName; - Tcl_Obj *srvListPtr = NULL, **srvPtrPtr = NULL; - int n, srvCount = 0, lastSuffix, r = TCL_OK; ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); /* - * See if the application is already registered; if so, remove its current - * name from the registry. The deletion of the command will take care of - * disposing of this entry. + * See if the application is already registered; if so, remove its + * current name from the registry. The deletion of the command + * will take care of disposing of this entry. */ - for (riPtr = tsdPtr->interpListPtr, prevPtr = NULL; riPtr != NULL; + for (riPtr = tsdPtr->interpListPtr, prevPtr = NULL; riPtr != NULL; prevPtr = riPtr, riPtr = riPtr->nextPtr) { if (riPtr->interp == interp) { if (name != NULL) { @@ -301,8 +261,8 @@ DdeSetServerName( break; } else { /* - * The name was NULL, so the caller is asking for the name of - * the current interp. + * the name was NULL, so the caller is asking for + * the name of the current interp. */ return riPtr->name; @@ -312,74 +272,24 @@ DdeSetServerName( if (name == NULL) { /* - * The name was NULL, so the caller is asking for the name of the - * current interp, but it doesn't have a name. + * the name was NULL, so the caller is asking for + * the name of the current interp, but it doesn't + * have a name. */ return ""; } - + /* - * Get the list of currently registered Tcl interpreters by calling the - * internal implementation of the 'dde services' command. + * Pick a name to use for the application. Use "name" if it's not + * already in use. Otherwise add a suffix such as " #2", trying + * larger and larger numbers until we eventually find one that is + * unique. */ + suffix = 1; + offset = 0; Tcl_DStringInit(&dString); - actualName = name; - - if (!exactName) { - r = DdeGetServicesList(interp, TCL_DDE_SERVICE_NAME, NULL); - if (r == TCL_OK) { - srvListPtr = Tcl_GetObjResult(interp); - } - if (r == TCL_OK) { - r = Tcl_ListObjGetElements(interp, srvListPtr, &srvCount, - &srvPtrPtr); - } - if (r != TCL_OK) { - OutputDebugString(Tcl_GetStringResult(interp)); - return NULL; - } - - /* - * Pick a name to use for the application. Use "name" if it's not - * already in use. Otherwise add a suffix such as " #2", trying larger - * and larger numbers until we eventually find one that is unique. - */ - - offset = lastSuffix = 0; - suffix = 1; - - while (suffix != lastSuffix) { - lastSuffix = suffix; - if (suffix > 1) { - if (suffix == 2) { - Tcl_DStringAppend(&dString, name, -1); - Tcl_DStringAppend(&dString, " #", 2); - offset = Tcl_DStringLength(&dString); - Tcl_DStringSetLength(&dString, offset + TCL_INTEGER_SPACE); - actualName = Tcl_DStringValue(&dString); - } - sprintf(Tcl_DStringValue(&dString) + offset, "%d", suffix); - } - - /* - * See if the name is already in use, if so increment suffix. - */ - - for (n = 0; n < srvCount; ++n) { - Tcl_Obj* namePtr; - - Tcl_ListObjIndex(interp, srvPtrPtr[n], 1, &namePtr); - if (strcmp(actualName, Tcl_GetString(namePtr)) == 0) { - suffix++; - break; - } - } - } - Tcl_DStringSetLength(&dString, - offset + strlen(Tcl_DStringValue(&dString)+offset)); - } /* * We have found a unique name. Now add it to the registry. @@ -387,18 +297,10 @@ DdeSetServerName( riPtr = (RegisteredInterp *) ckalloc(sizeof(RegisteredInterp)); riPtr->interp = interp; - riPtr->name = ckalloc((unsigned int) strlen(actualName) + 1); + riPtr->name = ckalloc((unsigned int) strlen(name) + 1); riPtr->nextPtr = tsdPtr->interpListPtr; - riPtr->handlerPtr = handlerPtr; - if (riPtr->handlerPtr != NULL) { - Tcl_IncrRefCount(riPtr->handlerPtr); - } tsdPtr->interpListPtr = riPtr; - strcpy(riPtr->name, actualName); - - if (Tcl_IsSafe(interp)) { - Tcl_ExposeCommand(interp, "dde", "dde"); - } + strcpy(riPtr->name, name); Tcl_CreateObjCommand(interp, "dde", Tcl_DdeObjCmd, (ClientData) riPtr, DeleteProc); @@ -408,52 +310,19 @@ DdeSetServerName( Tcl_DStringFree(&dString); /* - * Re-initialize with the new name. + * re-initialize with the new name */ - Initialize(); - + return riPtr->name; } /* - *---------------------------------------------------------------------- - * - * DdeGetRegistrationPtr - * - * Retrieve the registration info for an interpreter. - * - * Results: - * Returns a pointer to the registration structure or NULL - * - * Side effects: - * None - * - *---------------------------------------------------------------------- - */ - -static RegisteredInterp * -DdeGetRegistrationPtr( - Tcl_Interp *interp) -{ - RegisteredInterp *riPtr; - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); - - for (riPtr = tsdPtr->interpListPtr; riPtr != NULL; - riPtr = riPtr->nextPtr) { - if (riPtr->interp == interp) { - break; - } - } - return riPtr; -} - -/* - *---------------------------------------------------------------------- + *-------------------------------------------------------------- * * DeleteProc * - * This function is called when the command "dde" is destroyed. + * This procedure is called when the command "dde" is destroyed. * * Results: * none @@ -461,20 +330,20 @@ DdeGetRegistrationPtr( * Side effects: * The interpreter given by riPtr is unregistered. * - *---------------------------------------------------------------------- + *-------------------------------------------------------------- */ static void -DeleteProc( - ClientData clientData) /* The interp we are deleting passed as - * ClientData. */ +DeleteProc(clientData) + ClientData clientData; /* The interp we are deleting passed + * as ClientData. */ { RegisteredInterp *riPtr = (RegisteredInterp *) clientData; RegisteredInterp *searchPtr, *prevPtr; ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); for (searchPtr = tsdPtr->interpListPtr, prevPtr = NULL; - searchPtr != NULL && searchPtr != riPtr; + (searchPtr != NULL) && (searchPtr != riPtr); prevPtr = searchPtr, searchPtr = searchPtr->nextPtr) { /* * Empty loop body. @@ -489,33 +358,31 @@ DeleteProc( } } ckfree(riPtr->name); - if (riPtr->handlerPtr) { - Tcl_DecrRefCount(riPtr->handlerPtr); - } Tcl_EventuallyFree(clientData, TCL_DYNAMIC); } /* - *---------------------------------------------------------------------- + *-------------------------------------------------------------- * * ExecuteRemoteObject -- * - * Takes the package delivered by DDE and executes it in the server's - * interpreter. + * Takes the package delivered by DDE and executes it in + * the server's interpreter. * * Results: - * A list Tcl_Obj * that describes what happened. The first element is - * the numerical return code (TCL_ERROR, etc.). The second element is the - * result of the script. If the return result was TCL_ERROR, then the - * third element will be the value of the global "errorCode", and the - * fourth will be the value of the global "errorInfo". The return result - * will have a refCount of 0. + * A list Tcl_Obj * that describes what happened. The first + * element is the numerical return code (TCL_ERROR, etc.). + * The second element is the result of the script. If the + * return result was TCL_ERROR, then the third element + * will be the value of the global "errorCode", and the + * fourth will be the value of the global "errorInfo". + * The return result will have a refCount of 0. * * Side effects: - * A Tcl script is run, which can cause all kinds of other things to - * happen. + * A Tcl script is run, which can cause all kinds of other + * things to happen. * - *---------------------------------------------------------------------- + *-------------------------------------------------------------- */ static Tcl_Obj * @@ -523,86 +390,63 @@ ExecuteRemoteObject( RegisteredInterp *riPtr, /* Info about this server. */ Tcl_Obj *ddeObjectPtr) /* The object to execute. */ { + Tcl_Obj *errorObjPtr; Tcl_Obj *returnPackagePtr; - int result = TCL_OK; - - if (riPtr->handlerPtr == NULL && Tcl_IsSafe(riPtr->interp)) { - Tcl_SetObjResult(riPtr->interp, Tcl_NewStringObj("permission denied: " - "a handler procedure must be defined for use in a safe " - "interp", -1)); - result = TCL_ERROR; - } - - if (riPtr->handlerPtr != NULL) { - /* - * Add the dde request data to the handler proc list. - */ - - Tcl_Obj *cmdPtr = Tcl_DuplicateObj(riPtr->handlerPtr); - - result = Tcl_ListObjAppendElement(riPtr->interp, cmdPtr, ddeObjectPtr); - if (result == TCL_OK) { - ddeObjectPtr = cmdPtr; - } - } - - if (result == TCL_OK) { - result = Tcl_EvalObjEx(riPtr->interp, ddeObjectPtr, TCL_EVAL_GLOBAL); - } - - returnPackagePtr = Tcl_NewListObj(0, NULL); + int result; - Tcl_ListObjAppendElement(NULL, returnPackagePtr, Tcl_NewIntObj(result)); + result = Tcl_EvalObjEx(riPtr->interp, ddeObjectPtr, TCL_EVAL_GLOBAL); + returnPackagePtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); + Tcl_ListObjAppendElement(NULL, returnPackagePtr, + Tcl_NewIntObj(result)); Tcl_ListObjAppendElement(NULL, returnPackagePtr, Tcl_GetObjResult(riPtr->interp)); - if (result == TCL_ERROR) { - Tcl_Obj *errorObjPtr = Tcl_GetVar2Ex(riPtr->interp, "errorCode", NULL, + errorObjPtr = Tcl_GetVar2Ex(riPtr->interp, "errorCode", NULL, TCL_GLOBAL_ONLY); - if (errorObjPtr) { - Tcl_ListObjAppendElement(NULL, returnPackagePtr, errorObjPtr); - } + Tcl_ListObjAppendElement(NULL, returnPackagePtr, errorObjPtr); errorObjPtr = Tcl_GetVar2Ex(riPtr->interp, "errorInfo", NULL, TCL_GLOBAL_ONLY); - if (errorObjPtr) { - Tcl_ListObjAppendElement(NULL, returnPackagePtr, errorObjPtr); - } + Tcl_ListObjAppendElement(NULL, returnPackagePtr, errorObjPtr); } return returnPackagePtr; } /* - *---------------------------------------------------------------------- + *-------------------------------------------------------------- * * DdeServerProc -- * - * Handles all transactions for this server. Can handle execute, request, - * and connect protocols. Dde will call this routine when a client - * attempts to run a dde command using this server. + * Handles all transactions for this server. Can handle + * execute, request, and connect protocols. Dde will + * call this routine when a client attempts to run a dde + * command using this server. * * Results: * A DDE Handle with the result of the dde command. * * Side effects: - * Depending on which command is executed, arbitrary Tcl scripts can be - * run. + * Depending on which command is executed, arbitrary + * Tcl scripts can be run. * - *---------------------------------------------------------------------- + *-------------------------------------------------------------- */ static HDDEDATA CALLBACK -DdeServerProc( - UINT uType, /* The type of DDE transaction we are - * performing. */ - UINT uFmt, /* The format that data is sent or received. */ - HCONV hConv, /* The conversation associated with the +DdeServerProc ( + UINT uType, /* The type of DDE transaction we + * are performing. */ + UINT uFmt, /* The format that data is sent or + * received. */ + HCONV hConv, /* The conversation associated with the * current transaction. */ - HSZ ddeTopic, HSZ ddeItem, /* String handles. Transaction-type + HSZ ddeTopic, /* A string handle. Transaction-type + * dependent. */ + HSZ ddeItem, /* A string handle. Transaction-type * dependent. */ HDDEDATA hData, /* DDE data. Transaction-type dependent. */ - DWORD dwData1, DWORD dwData2) - /* Transaction-dependent data. */ + DWORD dwData1, /* Transaction-dependent data. */ + DWORD dwData2) /* Transaction-dependent data. */ { Tcl_DString dString; int len; @@ -615,121 +459,125 @@ DdeServerProc( ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); switch(uType) { - case XTYP_CONNECT: - /* - * Dde is trying to initialize a conversation with us. Check and make - * sure we have a valid topic. - */ + case XTYP_CONNECT: - len = DdeQueryString(ddeInstance, ddeTopic, NULL, 0, 0); - Tcl_DStringInit(&dString); - Tcl_DStringSetLength(&dString, len); - utilString = Tcl_DStringValue(&dString); - DdeQueryString(ddeInstance, ddeTopic, utilString, (DWORD) len + 1, - CP_WINANSI); + /* + * Dde is trying to initialize a conversation with us. Check + * and make sure we have a valid topic. + */ - for (riPtr = tsdPtr->interpListPtr; riPtr != NULL; - riPtr = riPtr->nextPtr) { - if (stricmp(utilString, riPtr->name) == 0) { - Tcl_DStringFree(&dString); - return (HDDEDATA) TRUE; + len = DdeQueryString(ddeInstance, ddeTopic, NULL, 0, 0); + Tcl_DStringInit(&dString); + Tcl_DStringSetLength(&dString, len); + utilString = Tcl_DStringValue(&dString); + DdeQueryString(ddeInstance, ddeTopic, utilString, (DWORD) len + 1, + CP_WINANSI); + + for (riPtr = tsdPtr->interpListPtr; riPtr != NULL; + riPtr = riPtr->nextPtr) { + if (stricmp(utilString, riPtr->name) == 0) { + Tcl_DStringFree(&dString); + return (HDDEDATA) TRUE; + } } - } - Tcl_DStringFree(&dString); - return (HDDEDATA) FALSE; + Tcl_DStringFree(&dString); + return (HDDEDATA) FALSE; - case XTYP_CONNECT_CONFIRM: - /* - * Dde has decided that we can connect, so it gives us a conversation - * handle. We need to keep track of it so we know which execution - * result to return in an XTYP_REQUEST. - */ + case XTYP_CONNECT_CONFIRM: - len = DdeQueryString(ddeInstance, ddeTopic, NULL, 0, 0); - Tcl_DStringInit(&dString); - Tcl_DStringSetLength(&dString, len); - utilString = Tcl_DStringValue(&dString); - DdeQueryString(ddeInstance, ddeTopic, utilString, (DWORD) len + 1, - CP_WINANSI); - for (riPtr = tsdPtr->interpListPtr; riPtr != NULL; - riPtr = riPtr->nextPtr) { - if (stricmp(riPtr->name, utilString) == 0) { - convPtr = (Conversation *) ckalloc(sizeof(Conversation)); - convPtr->nextPtr = tsdPtr->currentConversations; - convPtr->returnPackagePtr = NULL; - convPtr->hConv = hConv; - convPtr->riPtr = riPtr; - tsdPtr->currentConversations = convPtr; - break; + /* + * Dde has decided that we can connect, so it gives us a + * conversation handle. We need to keep track of it + * so we know which execution result to return in an + * XTYP_REQUEST. + */ + + len = DdeQueryString(ddeInstance, ddeTopic, NULL, 0, 0); + Tcl_DStringInit(&dString); + Tcl_DStringSetLength(&dString, len); + utilString = Tcl_DStringValue(&dString); + DdeQueryString(ddeInstance, ddeTopic, utilString, (DWORD) len + 1, + CP_WINANSI); + for (riPtr = tsdPtr->interpListPtr; riPtr != NULL; + riPtr = riPtr->nextPtr) { + if (stricmp(riPtr->name, utilString) == 0) { + convPtr = (Conversation *) ckalloc(sizeof(Conversation)); + convPtr->nextPtr = tsdPtr->currentConversations; + convPtr->returnPackagePtr = NULL; + convPtr->hConv = hConv; + convPtr->riPtr = riPtr; + tsdPtr->currentConversations = convPtr; + break; + } } - } - Tcl_DStringFree(&dString); - return (HDDEDATA) TRUE; + Tcl_DStringFree(&dString); + return (HDDEDATA) TRUE; - case XTYP_DISCONNECT: - /* - * The client has disconnected from our server. Forget this - * conversation. - */ + case XTYP_DISCONNECT: - for (convPtr = tsdPtr->currentConversations, prevConvPtr = NULL; - convPtr != NULL; - prevConvPtr = convPtr, convPtr = convPtr->nextPtr) { - if (hConv == convPtr->hConv) { - if (prevConvPtr == NULL) { - tsdPtr->currentConversations = convPtr->nextPtr; - } else { - prevConvPtr->nextPtr = convPtr->nextPtr; - } - if (convPtr->returnPackagePtr != NULL) { - Tcl_DecrRefCount(convPtr->returnPackagePtr); + /* + * The client has disconnected from our server. Forget this + * conversation. + */ + + for (convPtr = tsdPtr->currentConversations, prevConvPtr = NULL; + convPtr != NULL; + prevConvPtr = convPtr, convPtr = convPtr->nextPtr) { + if (hConv == convPtr->hConv) { + if (prevConvPtr == NULL) { + tsdPtr->currentConversations = convPtr->nextPtr; + } else { + prevConvPtr->nextPtr = convPtr->nextPtr; + } + if (convPtr->returnPackagePtr != NULL) { + Tcl_DecrRefCount(convPtr->returnPackagePtr); + } + ckfree((char *) convPtr); + break; } - ckfree((char *) convPtr); - break; } - } - return (HDDEDATA) TRUE; + return (HDDEDATA) TRUE; - case XTYP_REQUEST: - /* - * This could be either a request for a value of a Tcl variable, or it - * could be the send command requesting the results of the last - * execute. - */ - - if (uFmt != CF_TEXT) { - return (HDDEDATA) FALSE; - } + case XTYP_REQUEST: - ddeReturn = (HDDEDATA) FALSE; - for (convPtr = tsdPtr->currentConversations; (convPtr != NULL) - && (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) { /* - * Empty loop body. + * This could be either a request for a value of a Tcl variable, + * or it could be the send command requesting the results of the + * last execute. */ - } - if (convPtr != NULL) { - char *returnString; + if (uFmt != CF_TEXT) { + return (HDDEDATA) FALSE; + } - len = DdeQueryString(ddeInstance, ddeItem, NULL, 0, CP_WINANSI); - Tcl_DStringInit(&dString); - Tcl_DStringSetLength(&dString, len); - utilString = Tcl_DStringValue(&dString); - DdeQueryString(ddeInstance, ddeItem, utilString, (DWORD) len + 1, - CP_WINANSI); - if (stricmp(utilString, TCL_DDE_EXECUTE_RESULT) == 0) { - returnString = - Tcl_GetStringFromObj(convPtr->returnPackagePtr, &len); - ddeReturn = DdeCreateDataHandle(ddeInstance, returnString, - (DWORD) len+1, 0, ddeItem, CF_TEXT, 0); - } else { - if (Tcl_IsSafe(convPtr->riPtr->interp)) { - ddeReturn = NULL; + ddeReturn = (HDDEDATA) FALSE; + for (convPtr = tsdPtr->currentConversations; (convPtr != NULL) + && (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) { + /* + * Empty loop body. + */ + } + + if (convPtr != NULL) { + char *returnString; + + len = DdeQueryString(ddeInstance, ddeItem, NULL, 0, + CP_WINANSI); + Tcl_DStringInit(&dString); + Tcl_DStringSetLength(&dString, len); + utilString = Tcl_DStringValue(&dString); + DdeQueryString(ddeInstance, ddeItem, utilString, + (DWORD) len + 1, CP_WINANSI); + if (stricmp(utilString, "$TCLEVAL$EXECUTE$RESULT") == 0) { + returnString = + Tcl_GetStringFromObj(convPtr->returnPackagePtr, &len); + ddeReturn = DdeCreateDataHandle(ddeInstance, + returnString, (DWORD) len+1, 0, ddeItem, CF_TEXT, + 0); } else { Tcl_Obj *variableObjPtr = Tcl_GetVar2Ex( - convPtr->riPtr->interp, utilString, NULL, + convPtr->riPtr->interp, utilString, NULL, TCL_GLOBAL_ONLY); if (variableObjPtr != NULL) { returnString = Tcl_GetStringFromObj(variableObjPtr, @@ -741,101 +589,106 @@ DdeServerProc( ddeReturn = NULL; } } + Tcl_DStringFree(&dString); } - Tcl_DStringFree(&dString); - } - return ddeReturn; + return ddeReturn; - case XTYP_EXECUTE: { - /* - * Execute this script. The results will be saved into a list object - * which will be retreived later. See ExecuteRemoteObject. - */ + case XTYP_EXECUTE: { - Tcl_Obj *returnPackagePtr; - - for (convPtr = tsdPtr->currentConversations; (convPtr != NULL) - && (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) { /* - * Empty loop body. + * Execute this script. The results will be saved into + * a list object which will be retreived later. See + * ExecuteRemoteObject. */ - } - if (convPtr == NULL) { - return (HDDEDATA) DDE_FNOTPROCESSED; - } + Tcl_Obj *returnPackagePtr; + + for (convPtr = tsdPtr->currentConversations; (convPtr != NULL) + && (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) { + /* + * Empty loop body. + */ + + } + + if (convPtr == NULL) { + return (HDDEDATA) DDE_FNOTPROCESSED; + } + + utilString = (char *) DdeAccessData(hData, &dlen); + len = dlen; + ddeObjectPtr = Tcl_NewStringObj(utilString, -1); + Tcl_IncrRefCount(ddeObjectPtr); + DdeUnaccessData(hData); + if (convPtr->returnPackagePtr != NULL) { + Tcl_DecrRefCount(convPtr->returnPackagePtr); + } + convPtr->returnPackagePtr = NULL; + returnPackagePtr = + ExecuteRemoteObject(convPtr->riPtr, ddeObjectPtr); + Tcl_IncrRefCount(returnPackagePtr); + for (convPtr = tsdPtr->currentConversations; (convPtr != NULL) + && (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) { + /* + * Empty loop body. + */ - utilString = (char *) DdeAccessData(hData, &dlen); - len = dlen; - ddeObjectPtr = Tcl_NewStringObj(utilString, -1); - Tcl_IncrRefCount(ddeObjectPtr); - DdeUnaccessData(hData); - if (convPtr->returnPackagePtr != NULL) { - Tcl_DecrRefCount(convPtr->returnPackagePtr); + } + if (convPtr != NULL) { + convPtr->returnPackagePtr = returnPackagePtr; + } else { + Tcl_DecrRefCount(returnPackagePtr); + } + Tcl_DecrRefCount(ddeObjectPtr); + if (returnPackagePtr == NULL) { + return (HDDEDATA) DDE_FNOTPROCESSED; + } else { + return (HDDEDATA) DDE_FACK; + } } - convPtr->returnPackagePtr = NULL; - returnPackagePtr = ExecuteRemoteObject(convPtr->riPtr, ddeObjectPtr); - Tcl_IncrRefCount(returnPackagePtr); - for (convPtr = tsdPtr->currentConversations; (convPtr != NULL) - && (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) { + + case XTYP_WILDCONNECT: { + /* - * Empty loop body. + * Dde wants a list of services and topics that we support. */ - } - if (convPtr != NULL) { - convPtr->returnPackagePtr = returnPackagePtr; - } else { - Tcl_DecrRefCount(returnPackagePtr); - } - Tcl_DecrRefCount(ddeObjectPtr); - if (returnPackagePtr == NULL) { - return (HDDEDATA) DDE_FNOTPROCESSED; - } else { - return (HDDEDATA) DDE_FACK; - } - } - case XTYP_WILDCONNECT: { - /* - * Dde wants a list of services and topics that we support. - */ + HSZPAIR *returnPtr; + int i; + int numItems; - HSZPAIR *returnPtr; - int i; - int numItems; + for (i = 0, riPtr = tsdPtr->interpListPtr; riPtr != NULL; + i++, riPtr = riPtr->nextPtr) { + /* + * Empty loop body. + */ - for (i = 0, riPtr = tsdPtr->interpListPtr; riPtr != NULL; - i++, riPtr = riPtr->nextPtr) { - /* - * Empty loop body. - */ - } + } - numItems = i; - ddeReturn = DdeCreateDataHandle(ddeInstance, NULL, - (numItems + 1) * sizeof(HSZPAIR), 0, 0, 0, 0); - returnPtr = (HSZPAIR *) DdeAccessData(ddeReturn, &dlen); - len = dlen; - for (i = 0, riPtr = tsdPtr->interpListPtr; i < numItems; - i++, riPtr = riPtr->nextPtr) { - returnPtr[i].hszSvc = DdeCreateStringHandle(ddeInstance, - TCL_DDE_SERVICE_NAME, CP_WINANSI); - returnPtr[i].hszTopic = DdeCreateStringHandle(ddeInstance, - riPtr->name, CP_WINANSI); + numItems = i; + ddeReturn = DdeCreateDataHandle(ddeInstance, NULL, + (numItems + 1) * sizeof(HSZPAIR), 0, 0, 0, 0); + returnPtr = (HSZPAIR *) DdeAccessData(ddeReturn, &dlen); + len = dlen; + for (i = 0, riPtr = tsdPtr->interpListPtr; i < numItems; + i++, riPtr = riPtr->nextPtr) { + returnPtr[i].hszSvc = DdeCreateStringHandle( + ddeInstance, "TclEval", CP_WINANSI); + returnPtr[i].hszTopic = DdeCreateStringHandle( + ddeInstance, riPtr->name, CP_WINANSI); + } + returnPtr[i].hszSvc = NULL; + returnPtr[i].hszTopic = NULL; + DdeUnaccessData(ddeReturn); + return ddeReturn; } - returnPtr[i].hszSvc = NULL; - returnPtr[i].hszTopic = NULL; - DdeUnaccessData(ddeReturn); - return ddeReturn; - } - default: - return NULL; } + return NULL; } /* - *---------------------------------------------------------------------- + *-------------------------------------------------------------- * * DdeExitProc -- * @@ -847,7 +700,7 @@ DdeServerProc( * Side effects: * The DDE server is deleted. * - *---------------------------------------------------------------------- + *-------------------------------------------------------------- */ static void @@ -860,20 +713,21 @@ DdeExitProc( } /* - *---------------------------------------------------------------------- + *-------------------------------------------------------------- * * MakeDdeConnection -- * - * This function is a utility used to connect to a DDE server when given - * a server name and a topic name. + * This procedure is a utility used to connect to a DDE + * server when given a server name and a topic name. * * Results: * A standard Tcl result. + * * * Side effects: * Passes back a conversation through ddeConvPtr * - *---------------------------------------------------------------------- + *-------------------------------------------------------------- */ static int @@ -884,8 +738,8 @@ MakeDdeConnection( { HSZ ddeTopic, ddeService; HCONV ddeConv; - - ddeService = DdeCreateStringHandle(ddeInstance, TCL_DDE_SERVICE_NAME, 0); + + ddeService = DdeCreateStringHandle(ddeInstance, "TclEval", 0); ddeTopic = DdeCreateStringHandle(ddeInstance, name, 0); ddeConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL); @@ -895,7 +749,7 @@ MakeDdeConnection( if (ddeConv == (HCONV) NULL) { if (interp != NULL) { Tcl_AppendResult(interp, "no registered server named \"", - name, "\"", NULL); + name, "\"", (char *) NULL); } return TCL_ERROR; } @@ -905,15 +759,14 @@ MakeDdeConnection( } /* - *---------------------------------------------------------------------- + *-------------------------------------------------------------- * * DdeGetServicesList -- * - * This function obtains the list of DDE services. + * This procedure obtains the list of DDE services. * - * The functions between here and this function are all involved with - * handling the DDE callbacks for this. They are: DdeCreateClient, - * DdeClientWindowProc, DdeServicesOnAck, and DdeEnumWindowsCallback + * The functions between here and this procedure are all + * involved with handling the DDE callbacks for this. * * Results: * A standard Tcl result. @@ -921,12 +774,24 @@ MakeDdeConnection( * Side effects: * Sets the services list into the interp result. * - *---------------------------------------------------------------------- + *-------------------------------------------------------------- */ +typedef struct ddeEnumServices { + Tcl_Interp *interp; + int result; + ATOM service; + ATOM topic; + HWND hwnd; +} ddeEnumServices; + +LRESULT CALLBACK +DdeClientWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam); +static LRESULT +DdeServicesOnAck(HWND hwnd, WPARAM wParam, LPARAM lParam); + static int -DdeCreateClient( - struct DdeEnumServices *es) +DdeCreateClient(ddeEnumServices *es) { WNDCLASSEX wc; static const char *szDdeClientClassName = "TclEval client class"; @@ -936,196 +801,177 @@ DdeCreateClient( wc.cbSize = sizeof(wc); wc.lpfnWndProc = DdeClientWindowProc; wc.lpszClassName = szDdeClientClassName; - wc.cbWndExtra = sizeof(struct DdeEnumServices *); - - /* - * Register and create the callback window. - */ + wc.cbWndExtra = sizeof(ddeEnumServices*); + /* register and create the callback window */ RegisterClassEx(&wc); - es->hwnd = CreateWindowEx(0, szDdeClientClassName, szDdeClientWindowName, - WS_POPUP, 0, 0, 0, 0, NULL, NULL, NULL, (LPVOID)es); + es->hwnd = CreateWindowEx(0, szDdeClientClassName, + szDdeClientWindowName, + WS_POPUP, 0, 0, 0, 0, NULL, NULL, NULL, + (LPVOID)es); return TCL_OK; } -static LRESULT CALLBACK -DdeClientWindowProc( - HWND hwnd, /* What window is the message for */ - UINT uMsg, /* The type of message received */ - WPARAM wParam, - LPARAM lParam) /* (Potentially) our local handle */ +LRESULT CALLBACK +DdeClientWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { + LRESULT lr = 0L; switch (uMsg) { - case WM_CREATE: { - LPCREATESTRUCT lpcs = (LPCREATESTRUCT) lParam; - struct DdeEnumServices *es = - (struct DdeEnumServices *) lpcs->lpCreateParams; - + case WM_CREATE: { + LPCREATESTRUCT lpcs = (LPCREATESTRUCT)lParam; + ddeEnumServices *es; + es = (ddeEnumServices*)lpcs->lpCreateParams; #ifdef _WIN64 - SetWindowLongPtr(hwnd, GWLP_USERDATA, (long)es); + SetWindowLongPtr(hwnd, GWLP_USERDATA, (long)es); #else - SetWindowLong(hwnd, GWL_USERDATA, (long)es); + SetWindowLong(hwnd, GWL_USERDATA, (long)es); #endif - return (LRESULT) 0L; - } - case WM_DDE_ACK: - return DdeServicesOnAck(hwnd, wParam, lParam); - break; - default: - return DefWindowProc(hwnd, uMsg, wParam, lParam); + break; + } + case WM_DDE_ACK: + lr = DdeServicesOnAck(hwnd, wParam, lParam); + break; + default: + lr = DefWindowProc(hwnd, uMsg, wParam, lParam); } + return lr; } static LRESULT -DdeServicesOnAck( - HWND hwnd, - WPARAM wParam, - LPARAM lParam) +DdeServicesOnAck(HWND hwnd, WPARAM wParam, LPARAM lParam) { HWND hwndRemote = (HWND)wParam; ATOM service = (ATOM)LOWORD(lParam); ATOM topic = (ATOM)HIWORD(lParam); - struct DdeEnumServices *es; + ddeEnumServices *es; TCHAR sz[255]; #ifdef _WIN64 - es = (struct DdeEnumServices *) GetWindowLongPtr(hwnd, GWLP_USERDATA); + es = (ddeEnumServices *)GetWindowLongPtr(hwnd, GWLP_USERDATA); #else - es = (struct DdeEnumServices *) GetWindowLong(hwnd, GWL_USERDATA); + es = (ddeEnumServices *)GetWindowLong(hwnd, GWL_USERDATA); #endif if ((es->service == (ATOM)NULL || es->service == service) - && (es->topic == (ATOM)NULL || es->topic == topic)) { + && (es->topic == (ATOM)NULL || es->topic == topic)) { Tcl_Obj *matchPtr = Tcl_NewListObj(0, NULL); - Tcl_Obj *resultPtr = Tcl_GetObjResult(es->interp); GlobalGetAtomName(service, sz, 255); - Tcl_ListObjAppendElement(NULL, matchPtr, Tcl_NewStringObj(sz, -1)); + Tcl_ListObjAppendElement(es->interp, matchPtr, + Tcl_NewStringObj(sz, -1)); GlobalGetAtomName(topic, sz, 255); - Tcl_ListObjAppendElement(NULL, matchPtr, Tcl_NewStringObj(sz, -1)); - - /* - * Adding the hwnd as a third list element provides a unique + Tcl_ListObjAppendElement(es->interp, matchPtr, + Tcl_NewStringObj(sz, -1)); + /* Adding the hwnd as a third list element provides a unique * identifier in the case of multiple servers with the name * application and topic names. */ - /* - * Needs a TIP though: - * Tcl_ListObjAppendElement(NULL, matchPtr, + /* Needs a TIP though + * Tcl_ListObjAppendElement(es->interp, matchPtr, * Tcl_NewLongObj((long)hwndRemote)); */ - - if (Tcl_IsShared(resultPtr)) { - resultPtr = Tcl_DuplicateObj(resultPtr); - } - if (Tcl_ListObjAppendElement(es->interp, resultPtr, - matchPtr) == TCL_OK) { - Tcl_SetObjResult(es->interp, resultPtr); - } + Tcl_ListObjAppendElement(es->interp, + Tcl_GetObjResult(es->interp), matchPtr); } - /* - * Tell the server we are no longer interested. - */ - + /* tell the server we are no longer interested */ PostMessage(hwndRemote, WM_DDE_TERMINATE, (WPARAM)hwnd, 0L); return 0L; } - + static BOOL CALLBACK -DdeEnumWindowsCallback( - HWND hwndTarget, - LPARAM lParam) +DdeEnumWindowsCallback(HWND hwndTarget, LPARAM lParam) { LRESULT dwResult = 0; - struct DdeEnumServices *es = (struct DdeEnumServices *) lParam; - - SendMessageTimeout(hwndTarget, WM_DDE_INITIATE, (WPARAM)es->hwnd, - MAKELONG(es->service, es->topic), SMTO_ABORTIFHUNG, 1000, - &dwResult); + ddeEnumServices *es = (ddeEnumServices *)lParam; + SendMessageTimeout(hwndTarget, WM_DDE_INITIATE, + (WPARAM)es->hwnd, + MAKELONG(es->service, es->topic), + SMTO_ABORTIFHUNG, 1000, &dwResult); return TRUE; } - + static int -DdeGetServicesList( - Tcl_Interp *interp, - char *serviceName, - char *topicName) +DdeGetServicesList(Tcl_Interp *interp, char *serviceName, char *topicName) { - struct DdeEnumServices es; - + ddeEnumServices es; + int r = TCL_OK; es.interp = interp; es.result = TCL_OK; - es.service = (serviceName == NULL) - ? (ATOM)NULL : GlobalAddAtom(serviceName); - es.topic = (topicName == NULL) ? (ATOM)NULL : GlobalAddAtom(topicName); - + es.service = (serviceName == NULL) + ? (ATOM)NULL : GlobalAddAtom(serviceName); + es.topic = (topicName == NULL) + ? (ATOM)NULL : GlobalAddAtom(topicName); + Tcl_ResetResult(interp); /* our list is to be appended to result. */ DdeCreateClient(&es); EnumWindows(DdeEnumWindowsCallback, (LPARAM)&es); - - if (IsWindow(es.hwnd)) { - DestroyWindow(es.hwnd); - } - if (es.service != (ATOM)NULL) { + + if (IsWindow(es.hwnd)) + DestroyWindow(es.hwnd); + if (es.service != (ATOM)NULL) GlobalDeleteAtom(es.service); - } - if (es.topic != (ATOM)NULL) { + if (es.topic != (ATOM)NULL) GlobalDeleteAtom(es.topic); - } return es.result; } /* - *---------------------------------------------------------------------- + *-------------------------------------------------------------- * * SetDdeError -- * - * Sets the interp result to a cogent error message describing the last - * DDE error. + * Sets the interp result to a cogent error message + * describing the last DDE error. * * Results: * None. + * * * Side effects: * The interp's result object is changed. * - *---------------------------------------------------------------------- + *-------------------------------------------------------------- */ static void SetDdeError( - Tcl_Interp *interp) /* The interp to put the message in. */ + Tcl_Interp *interp) /* The interp to put the message in.*/ { - char *errorMessage; - - switch (DdeGetLastError(ddeInstance)) { - case DMLERR_DATAACKTIMEOUT: - case DMLERR_EXECACKTIMEOUT: - case DMLERR_POKEACKTIMEOUT: - errorMessage = "remote interpreter did not respond"; - break; - case DMLERR_BUSY: - errorMessage = "remote server is busy"; - break; - case DMLERR_NOTPROCESSED: - errorMessage = "remote server cannot handle this command"; - break; - default: - errorMessage = "dde command failed"; - } + Tcl_Obj *resultPtr = Tcl_GetObjResult(interp); + int err; + + err = DdeGetLastError(ddeInstance); + switch (err) { + case DMLERR_DATAACKTIMEOUT: + case DMLERR_EXECACKTIMEOUT: + case DMLERR_POKEACKTIMEOUT: + Tcl_SetStringObj(resultPtr, + "remote interpreter did not respond", -1); + break; + + case DMLERR_BUSY: + Tcl_SetStringObj(resultPtr, "remote server is busy", -1); + break; + + case DMLERR_NOTPROCESSED: + Tcl_SetStringObj(resultPtr, + "remote server cannot handle this command", -1); + break; - Tcl_SetObjResult(interp, Tcl_NewStringObj(errorMessage, -1)); + default: + Tcl_SetStringObj(resultPtr, "dde command failed", -1); + } } /* - *---------------------------------------------------------------------- + *-------------------------------------------------------------- * * Tcl_DdeObjCmd -- * - * This function is invoked to process the "dde" Tcl command. See the - * user documentation for details on what it does. + * This procedure is invoked to process the "dde" Tcl command. + * See the user documentation for details on what it does. * * Results: * A standard Tcl result. @@ -1133,7 +979,7 @@ SetDdeError( * Side effects: * See the user documentation. * - *---------------------------------------------------------------------- + *-------------------------------------------------------------- */ int @@ -1141,45 +987,49 @@ Tcl_DdeObjCmd( ClientData clientData, /* Used only for deletion */ Tcl_Interp *interp, /* The interp we are sending from */ int objc, /* Number of arguments */ - Tcl_Obj *CONST * objv) /* The arguments */ + Tcl_Obj *CONST objv[]) /* The arguments */ { - static CONST char *ddeCommands[] = { - "servername", "execute", "poke", "request", "services", "eval", - (char *) NULL - }; - enum DdeSubcommands { - DDE_SERVERNAME, DDE_EXECUTE, DDE_POKE, DDE_REQUEST, DDE_SERVICES, + enum { + DDE_SERVERNAME, + DDE_EXECUTE, + DDE_POKE, + DDE_REQUEST, + DDE_SERVICES, DDE_EVAL }; - static CONST char *ddeSrvOptions[] = { - "-force", "-handler", "--", NULL - }; - enum DdeSrvOptions { - DDE_SERVERNAME_EXACT, DDE_SERVERNAME_HANDLER, DDE_SERVERNAME_LAST, - }; - static CONST char *ddeExecOptions[] = { - "-async", NULL - }; - static CONST char *ddeReqOptions[] = { - "-binary", NULL - }; - int index, i, length; - int async = 0, binary = 0, exact = 0; - int result = TCL_OK, firstArg = 0; - HSZ ddeService = NULL, ddeTopic = NULL, ddeItem = NULL, ddeCookie = NULL; - HDDEDATA ddeData = NULL, ddeItemData = NULL, ddeReturn; + static CONST char *ddeCommands[] = {"servername", "execute", "poke", + "request", "services", "eval", + (char *) NULL}; + static CONST char *ddeOptions[] = {"-async", (char *) NULL}; + static CONST char *ddeReqOptions[] = {"-binary", (char *) NULL}; + int index, argIndex; + int async = 0, binary = 0; + int result = TCL_OK; + HSZ ddeService = NULL; + HSZ ddeTopic = NULL; + HSZ ddeItem = NULL; + HDDEDATA ddeData = NULL; + HDDEDATA ddeItemData = NULL; HCONV hConv = NULL; - char *serviceName = NULL, *topicName = NULL, *string; + HSZ ddeCookie = 0; + char *serviceName, *topicName, *itemString, *dataString; + char *string; + int firstArg, length, dataLength; DWORD ddeResult; - Tcl_Obj *objPtr, *handlerPtr = NULL; + HDDEDATA ddeReturn; + RegisteredInterp *riPtr; + Tcl_Interp *sendInterp; + Tcl_Obj *objPtr; + ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); /* * Initialize DDE server/client */ - + if (objc < 2) { - Tcl_WrongNumArgs(interp, 1, objv, "command ?arg ...?"); + Tcl_WrongNumArgs(interp, 1, objv, + "?-async? serviceName topicName value"); return TCL_ERROR; } @@ -1188,124 +1038,105 @@ Tcl_DdeObjCmd( return TCL_ERROR; } - switch ((enum DdeSubcommands) index) { - case DDE_SERVERNAME: - for (i = 2; i < objc; i++) { - int argIndex; - if (Tcl_GetIndexFromObj(interp, objv[i], ddeSrvOptions, - "option", 0, &argIndex) != TCL_OK) { - /* - * If it is the last argument, it might be a server name - * instead of a bad argument. - */ - - if (i != objc-1) { + switch (index) { + case DDE_SERVERNAME: + if ((objc != 3) && (objc != 2)) { + Tcl_WrongNumArgs(interp, 1, objv, "servername ?serverName?"); + return TCL_ERROR; + } + firstArg = (objc - 1); + break; + case DDE_EXECUTE: + if ((objc < 5) || (objc > 6)) { + Tcl_WrongNumArgs(interp, 1, objv, + "execute ?-async? serviceName topicName value"); + return TCL_ERROR; + } + if (Tcl_GetIndexFromObj(NULL, objv[2], ddeOptions, "option", 0, + &argIndex) != TCL_OK) { + if (objc != 5) { + Tcl_WrongNumArgs(interp, 1, objv, + "execute ?-async? serviceName topicName value"); return TCL_ERROR; } - Tcl_ResetResult(interp); - break; - } - if (argIndex == DDE_SERVERNAME_EXACT) { - exact = 1; - } else if (argIndex == DDE_SERVERNAME_HANDLER) { - if ((objc - i) == 1) { /* return current handler */ - RegisteredInterp *riPtr = DdeGetRegistrationPtr(interp); - - if (riPtr && riPtr->handlerPtr) { - Tcl_SetObjResult(interp, riPtr->handlerPtr); - } else { - Tcl_ResetResult(interp); - } - return TCL_OK; + async = 0; + firstArg = 2; + } else { + if (objc != 6) { + Tcl_WrongNumArgs(interp, 1, objv, + "execute ?-async? serviceName topicName value"); + return TCL_ERROR; } - handlerPtr = objv[++i]; - } else if (argIndex == DDE_SERVERNAME_LAST) { - i++; - break; - } - } - - if ((objc - i) > 1) { - Tcl_ResetResult(interp); - Tcl_WrongNumArgs(interp, 2, objv, - "?-force? ?-handler proc? ?--? ?serverName?"); - return TCL_ERROR; - } - - firstArg = (objc == i) ? 1 : i; - break; - case DDE_EXECUTE: - if (objc == 5) { - firstArg = 2; - break; - } else if (objc == 6) { - int dummy; - if (Tcl_GetIndexFromObj(NULL, objv[2], ddeExecOptions, "option", 0, - &dummy) == TCL_OK) { async = 1; firstArg = 3; - break; } - } - /* otherwise... */ - Tcl_WrongNumArgs(interp, 2, objv, - "?-async? serviceName topicName value"); - return TCL_ERROR; - case DDE_POKE: - if (objc != 6) { - Tcl_WrongNumArgs(interp, 2, objv, - "serviceName topicName item value"); - return TCL_ERROR; - } - firstArg = 2; - break; - case DDE_REQUEST: - if (objc == 5) { + break; + case DDE_POKE: + if (objc != 6) { + Tcl_WrongNumArgs(interp, 1, objv, + "poke serviceName topicName item value"); + return TCL_ERROR; + } firstArg = 2; break; - } else if (objc == 6) { - int dummy; + case DDE_REQUEST: + if ((objc < 5) || (objc > 6)) { + Tcl_WrongNumArgs(interp, 1, objv, + "request ?-binary? serviceName topicName value"); + return TCL_ERROR; + } if (Tcl_GetIndexFromObj(NULL, objv[2], ddeReqOptions, "option", 0, - &dummy) == TCL_OK) { + &argIndex) != TCL_OK) { + if (objc != 5) { + Tcl_WrongNumArgs(interp, 1, objv, + "request ?-binary? serviceName topicName value"); + return TCL_ERROR; + } + binary = 0; + firstArg = 2; + } else { + if (objc != 6) { + Tcl_WrongNumArgs(interp, 1, objv, + "request ?-binary? serviceName topicName value"); + return TCL_ERROR; + } binary = 1; firstArg = 3; - break; } - } - - /* - * Otherwise ... - */ - - Tcl_WrongNumArgs(interp, 2, objv, - "?-binary? serviceName topicName value"); - return TCL_ERROR; - case DDE_SERVICES: - if (objc != 4) { - Tcl_WrongNumArgs(interp, 2, objv, "serviceName topicName"); - return TCL_ERROR; - } - firstArg = 2; - break; - case DDE_EVAL: - if (objc < 4) { - wrongDdeEvalArgs: - Tcl_WrongNumArgs(interp, 2, objv, "?-async? serviceName args"); - return TCL_ERROR; - } else { - int dummy; - + break; + case DDE_SERVICES: + if (objc != 4) { + Tcl_WrongNumArgs(interp, 1, objv, + "services serviceName topicName"); + return TCL_ERROR; + } firstArg = 2; - if (Tcl_GetIndexFromObj(NULL, objv[2], ddeExecOptions, "option", 0, - &dummy) == TCL_OK) { + break; + case DDE_EVAL: + if (objc < 4) { + Tcl_WrongNumArgs(interp, 1, objv, + "eval ?-async? serviceName args"); + return TCL_ERROR; + } + if (Tcl_GetIndexFromObj(NULL, objv[2], ddeOptions, "option", 0, + &argIndex) != TCL_OK) { + if (objc < 4) { + Tcl_WrongNumArgs(interp, 1, objv, + "eval ?-async? serviceName args"); + return TCL_ERROR; + } + async = 0; + firstArg = 2; + } else { if (objc < 5) { - goto wrongDdeEvalArgs; + Tcl_WrongNumArgs(interp, 1, objv, + "eval ?-async? serviceName args"); + return TCL_ERROR; } async = 1; - firstArg++; + firstArg = 3; } break; - } } Initialize(); @@ -1323,363 +1154,345 @@ Tcl_DdeObjCmd( CP_WINANSI); } - if ((index != DDE_SERVERNAME) && (index != DDE_EVAL)) { + if ((index != DDE_SERVERNAME) &&(index != DDE_EVAL)) { topicName = Tcl_GetStringFromObj(objv[firstArg + 1], &length); if (length == 0) { topicName = NULL; } else { - ddeTopic = DdeCreateStringHandle(ddeInstance, topicName, - CP_WINANSI); + ddeTopic = DdeCreateStringHandle(ddeInstance, + topicName, CP_WINANSI); } } - switch ((enum DdeSubcommands) index) { - case DDE_SERVERNAME: - serviceName = DdeSetServerName(interp, serviceName, exact, handlerPtr); - if (serviceName != NULL) { - Tcl_SetObjResult(interp, Tcl_NewStringObj(serviceName, -1)); - } else { - Tcl_ResetResult(interp); - } - break; - - case DDE_EXECUTE: { - int dataLength; - char *dataString = Tcl_GetStringFromObj(objv[firstArg + 2], - &dataLength); - - if (dataLength == 0) { - Tcl_SetObjResult(interp, - Tcl_NewStringObj("cannot execute null data", -1)); - result = TCL_ERROR; - break; - } - hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL); - DdeFreeStringHandle(ddeInstance, ddeService); - DdeFreeStringHandle(ddeInstance, ddeTopic); - - if (hConv == NULL) { - SetDdeError(interp); - result = TCL_ERROR; - break; - } - - ddeData = DdeCreateDataHandle(ddeInstance, dataString, - (DWORD) dataLength+1, 0, 0, CF_TEXT, 0); - if (ddeData != NULL) { - if (async) { - DdeClientTransaction((LPBYTE) ddeData, 0xFFFFFFFF, hConv, 0, - CF_TEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult); - DdeAbandonTransaction(ddeInstance, hConv, ddeResult); + switch (index) { + case DDE_SERVERNAME: { + serviceName = DdeSetServerName(interp, serviceName); + if (serviceName != NULL) { + Tcl_SetStringObj(Tcl_GetObjResult(interp), + serviceName, -1); } else { - ddeReturn = DdeClientTransaction((LPBYTE) ddeData, 0xFFFFFFFF, - hConv, 0, CF_TEXT, XTYP_EXECUTE, 30000, NULL); - if (ddeReturn == 0) { - SetDdeError(interp); - result = TCL_ERROR; - } + Tcl_ResetResult(interp); } - DdeFreeDataHandle(ddeData); - } else { - SetDdeError(interp); - result = TCL_ERROR; + break; } - break; - } - case DDE_REQUEST: { - char *itemString = Tcl_GetStringFromObj(objv[firstArg + 2], &length); + case DDE_EXECUTE: { + dataString = Tcl_GetStringFromObj(objv[firstArg + 2], &dataLength); + if (dataLength == 0) { + Tcl_SetStringObj(Tcl_GetObjResult(interp), + "cannot execute null data", -1); + result = TCL_ERROR; + break; + } + hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL); + DdeFreeStringHandle(ddeInstance, ddeService); + DdeFreeStringHandle(ddeInstance, ddeTopic); - if (length == 0) { - Tcl_SetObjResult(interp, - Tcl_NewStringObj("cannot request value of null data", -1)); - result = TCL_ERROR; - goto cleanup; - } - hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL); - DdeFreeStringHandle(ddeInstance, ddeService); - DdeFreeStringHandle(ddeInstance, ddeTopic); + if (hConv == NULL) { + SetDdeError(interp); + result = TCL_ERROR; + break; + } - if (hConv == NULL) { - SetDdeError(interp); - result = TCL_ERROR; - } else { - Tcl_Obj *returnObjPtr; - ddeItem = DdeCreateStringHandle(ddeInstance, itemString, - CP_WINANSI); - if (ddeItem != NULL) { - ddeData = DdeClientTransaction(NULL, 0, hConv, ddeItem, - CF_TEXT, XTYP_REQUEST, 5000, NULL); - if (ddeData == NULL) { - SetDdeError(interp); - result = TCL_ERROR; + ddeData = DdeCreateDataHandle(ddeInstance, dataString, + (DWORD) dataLength+1, 0, 0, CF_TEXT, 0); + if (ddeData != NULL) { + if (async) { + DdeClientTransaction((LPBYTE) ddeData, 0xFFFFFFFF, hConv, 0, + CF_TEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult); + DdeAbandonTransaction(ddeInstance, hConv, + ddeResult); } else { - DWORD tmp; - char *dataString = DdeAccessData(ddeData, &tmp); - - if (binary) { - returnObjPtr = Tcl_NewByteArrayObj(dataString, - (int) tmp); - } else { - returnObjPtr = Tcl_NewStringObj(dataString, -1); + ddeReturn = DdeClientTransaction((LPBYTE) ddeData, 0xFFFFFFFF, + hConv, 0, CF_TEXT, XTYP_EXECUTE, 30000, NULL); + if (ddeReturn == 0) { + SetDdeError(interp); + result = TCL_ERROR; } - DdeUnaccessData(ddeData); - DdeFreeDataHandle(ddeData); - Tcl_SetObjResult(interp, returnObjPtr); } + DdeFreeDataHandle(ddeData); } else { SetDdeError(interp); result = TCL_ERROR; } + break; } + case DDE_REQUEST: { + itemString = Tcl_GetStringFromObj(objv[firstArg + 2], &length); + if (length == 0) { + Tcl_SetStringObj(Tcl_GetObjResult(interp), + "cannot request value of null data", -1); + goto errorNoResult; + } + hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL); + DdeFreeStringHandle(ddeInstance, ddeService); + DdeFreeStringHandle(ddeInstance, ddeTopic); + + if (hConv == NULL) { + SetDdeError(interp); + result = TCL_ERROR; + } else { + Tcl_Obj *returnObjPtr; + ddeItem = DdeCreateStringHandle(ddeInstance, + itemString, CP_WINANSI); + if (ddeItem != NULL) { + ddeData = DdeClientTransaction(NULL, 0, hConv, ddeItem, + CF_TEXT, XTYP_REQUEST, 5000, NULL); + if (ddeData == NULL) { + SetDdeError(interp); + result = TCL_ERROR; + } else { + DWORD tmp; + dataString = DdeAccessData(ddeData, &tmp); + dataLength = tmp; + if (binary) { + returnObjPtr = Tcl_NewByteArrayObj(dataString, + dataLength); + } else { + returnObjPtr = Tcl_NewStringObj(dataString, -1); + } + DdeUnaccessData(ddeData); + DdeFreeDataHandle(ddeData); + Tcl_SetObjResult(interp, returnObjPtr); + } + } else { + SetDdeError(interp); + result = TCL_ERROR; + } + } - break; - } - case DDE_POKE: { - char *itemString = Tcl_GetStringFromObj(objv[firstArg + 2], &length); - char *dataString; - - if (length == 0) { - Tcl_SetObjResult(interp, - Tcl_NewStringObj("cannot have a null item", -1)); - result = TCL_ERROR; - goto cleanup; + break; } - dataString = Tcl_GetStringFromObj(objv[firstArg + 3], &length); - - hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL); - DdeFreeStringHandle(ddeInstance, ddeService); - DdeFreeStringHandle(ddeInstance, ddeTopic); + case DDE_POKE: { + itemString = Tcl_GetStringFromObj(objv[firstArg + 2], &length); + if (length == 0) { + Tcl_SetStringObj(Tcl_GetObjResult(interp), + "cannot have a null item", -1); + goto errorNoResult; + } + dataString = Tcl_GetStringFromObj(objv[firstArg + 3], &length); + + hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL); + DdeFreeStringHandle(ddeInstance, ddeService); + DdeFreeStringHandle(ddeInstance, ddeTopic); - if (hConv == NULL) { - SetDdeError(interp); - result = TCL_ERROR; - } else { - ddeItem = DdeCreateStringHandle(ddeInstance, itemString, - CP_WINANSI); - if (ddeItem != NULL) { - ddeData = DdeClientTransaction(dataString, (DWORD) length+1, - hConv, ddeItem, CF_TEXT, XTYP_POKE, 5000, NULL); - if (ddeData == NULL) { + if (hConv == NULL) { + SetDdeError(interp); + result = TCL_ERROR; + } else { + ddeItem = DdeCreateStringHandle(ddeInstance, itemString, + CP_WINANSI); + if (ddeItem != NULL) { + ddeData = DdeClientTransaction(dataString, (DWORD) length+1, + hConv, ddeItem, CF_TEXT, XTYP_POKE, 5000, NULL); + if (ddeData == NULL) { + SetDdeError(interp); + result = TCL_ERROR; + } + } else { SetDdeError(interp); result = TCL_ERROR; } - } else { - SetDdeError(interp); - result = TCL_ERROR; } + break; } - break; - } - - case DDE_SERVICES: - result = DdeGetServicesList(interp, serviceName, topicName); - break; - - case DDE_EVAL: { - RegisteredInterp *riPtr; - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); - if (serviceName == NULL) { - Tcl_SetObjResult(interp, - Tcl_NewStringObj("invalid service name \"\"", -1)); - result = TCL_ERROR; - goto cleanup; + case DDE_SERVICES: { + result = DdeGetServicesList(interp, serviceName, topicName); + break; } - - objc -= (async + 3); - objv += (async + 3); - - /* - * See if the target interpreter is local. If so, execute the command - * directly without going through the DDE server. Don't exchange - * objects between interps. The target interp could compile an object, - * producing a bytecode structure that refers to other objects owned - * by the target interp. If the target interp is then deleted, the - * bytecode structure would be referring to deallocated objects. - */ - - for (riPtr = tsdPtr->interpListPtr; riPtr != NULL; - riPtr = riPtr->nextPtr) { - if (stricmp(serviceName, riPtr->name) == 0) { - break; + case DDE_EVAL: { + if (serviceName == NULL) { + Tcl_SetStringObj(Tcl_GetObjResult(interp), + "invalid service name \"\"", -1); + goto errorNoResult; } - } - - if (riPtr != NULL) { - Tcl_Interp *sendInterp; - - /* - * This command is to a local interp. No need to go through the - * server. - */ - - Tcl_Preserve((ClientData) riPtr); - sendInterp = riPtr->interp; - Tcl_Preserve((ClientData) sendInterp); - /* - * Don't exchange objects between interps. The target interp would - * compile an object, producing a bytecode structure that refers - * to other objects owned by the target interp. If the target - * interp is then deleted, the bytecode structure would be - * referring to deallocated objects. + objc -= (async + 3); + ((Tcl_Obj **) objv) += (async + 3); + + /* + * See if the target interpreter is local. If so, execute + * the command directly without going through the DDE server. + * Don't exchange objects between interps. The target interp could + * compile an object, producing a bytecode structure that refers to + * other objects owned by the target interp. If the target interp + * is then deleted, the bytecode structure would be referring to + * deallocated objects. */ - - if (Tcl_IsSafe(riPtr->interp) && riPtr->handlerPtr == NULL) { - Tcl_SetResult(riPtr->interp, "permission denied: " - "a handler procedure must be defined for use in " - "a safe interp", TCL_STATIC); - result = TCL_ERROR; + + for (riPtr = tsdPtr->interpListPtr; riPtr != NULL; + riPtr = riPtr->nextPtr) { + if (stricmp(serviceName, riPtr->name) == 0) { + break; + } } - if (result == TCL_OK) { - if (objc == 1) - objPtr = objv[0]; - else { + if (riPtr != NULL) { + /* + * This command is to a local interp. No need to go through + * the server. + */ + + Tcl_Preserve((ClientData) riPtr); + sendInterp = riPtr->interp; + Tcl_Preserve((ClientData) sendInterp); + + /* + * Don't exchange objects between interps. The target interp + * would compile an object, producing a bytecode structure that + * refers to other objects owned by the target interp. If the + * target interp is then deleted, the bytecode structure would + * be referring to deallocated objects. + */ + + if (objc == 1) { + result = Tcl_EvalObjEx(sendInterp, objv[0], + TCL_EVAL_GLOBAL); + } else { objPtr = Tcl_ConcatObj(objc, objv); + Tcl_IncrRefCount(objPtr); + result = Tcl_EvalObjEx(sendInterp, objPtr, + TCL_EVAL_GLOBAL); + Tcl_DecrRefCount(objPtr); } - if (riPtr->handlerPtr != NULL) { - /* add the dde request data to the handler proc list */ - /* - *result = Tcl_ListObjReplace(sendInterp, objPtr, 0, 0, 1, - * &(riPtr->handlerPtr)); - */ - Tcl_Obj *cmdPtr = Tcl_DuplicateObj(riPtr->handlerPtr); - result = Tcl_ListObjAppendElement(sendInterp, cmdPtr, - objPtr); - if (result == TCL_OK) { - objPtr = cmdPtr; - } - } - } - if (result == TCL_OK) { - Tcl_IncrRefCount(objPtr); - result = Tcl_EvalObjEx(sendInterp, objPtr, TCL_EVAL_GLOBAL); - Tcl_DecrRefCount(objPtr); - } - if (interp != sendInterp) { - if (result == TCL_ERROR) { - /* - * An error occurred, so transfer error information from - * the destination interpreter back to our interpreter. - */ - - Tcl_ResetResult(interp); - objPtr = Tcl_GetVar2Ex(sendInterp, "errorInfo", NULL, - TCL_GLOBAL_ONLY); - if (objPtr) { + if (interp != sendInterp) { + if (result == TCL_ERROR) { + /* + * An error occurred, so transfer error information + * from the destination interpreter back to our + * interpreter. + */ + + Tcl_ResetResult(interp); + objPtr = Tcl_GetVar2Ex(sendInterp, "errorInfo", NULL, + TCL_GLOBAL_ONLY); string = Tcl_GetStringFromObj(objPtr, &length); Tcl_AddObjErrorInfo(interp, string, length); - } - - objPtr = Tcl_GetVar2Ex(sendInterp, "errorCode", NULL, - TCL_GLOBAL_ONLY); - if (objPtr) { + + objPtr = Tcl_GetVar2Ex(sendInterp, "errorCode", NULL, + TCL_GLOBAL_ONLY); Tcl_SetObjErrorCode(interp, objPtr); } + Tcl_SetObjResult(interp, Tcl_GetObjResult(sendInterp)); } - Tcl_SetObjResult(interp, Tcl_GetObjResult(sendInterp)); - } - Tcl_Release((ClientData) riPtr); - Tcl_Release((ClientData) sendInterp); - } else { - /* - * This is a non-local request. Send the script to the server and - * poll it for a result. - */ - - if (MakeDdeConnection(interp, serviceName, &hConv) != TCL_OK) { - invalidServerResponse: - Tcl_SetObjResult(interp, - Tcl_NewStringObj("invalid data returned from server", - -1)); - result = TCL_ERROR; - goto cleanup; - } - - objPtr = Tcl_ConcatObj(objc, objv); - string = Tcl_GetStringFromObj(objPtr, &length); - ddeItemData = DdeCreateDataHandle(ddeInstance, string, - (DWORD) length+1, 0, 0, CF_TEXT, 0); - - if (async) { - ddeData = DdeClientTransaction((LPBYTE) ddeItemData, - 0xFFFFFFFF, hConv, 0, - CF_TEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult); - DdeAbandonTransaction(ddeInstance, hConv, ddeResult); + Tcl_Release((ClientData) riPtr); + Tcl_Release((ClientData) sendInterp); } else { - ddeData = DdeClientTransaction((LPBYTE) ddeItemData, - 0xFFFFFFFF, hConv, 0, - CF_TEXT, XTYP_EXECUTE, 30000, NULL); - if (ddeData != 0) { - ddeCookie = DdeCreateStringHandle(ddeInstance, - TCL_DDE_EXECUTE_RESULT, CP_WINANSI); - ddeData = DdeClientTransaction(NULL, 0, hConv, ddeCookie, - CF_TEXT, XTYP_REQUEST, 30000, NULL); - } - } - - Tcl_DecrRefCount(objPtr); - - if (ddeData == 0) { - SetDdeError(interp); - result = TCL_ERROR; - } - - if (async == 0) { - Tcl_Obj *resultPtr; - /* - * The return handle has a two or four element list in it. The - * first element is the return code (TCL_OK, TCL_ERROR, etc.). - * The second is the result of the script. If the return code - * is TCL_ERROR, then the third element is the value of the - * variable "errorCode", and the fourth is the value of the - * variable "errorInfo". + * This is a non-local request. Send the script to the server + * and poll it for a result. */ - - resultPtr = Tcl_NewObj(); - length = DdeGetData(ddeData, NULL, 0, 0); - Tcl_SetObjLength(resultPtr, length); - string = Tcl_GetString(resultPtr); - DdeGetData(ddeData, string, (DWORD) length, 0); - Tcl_SetObjLength(resultPtr, (int) strlen(string)); - - if (Tcl_ListObjIndex(NULL, resultPtr, 0, &objPtr) != TCL_OK) { - Tcl_DecrRefCount(resultPtr); - goto invalidServerResponse; + + if (MakeDdeConnection(interp, serviceName, &hConv) != TCL_OK) { + goto error; } - if (Tcl_GetIntFromObj(NULL, objPtr, &result) != TCL_OK) { - Tcl_DecrRefCount(resultPtr); - goto invalidServerResponse; + + objPtr = Tcl_ConcatObj(objc, objv); + string = Tcl_GetStringFromObj(objPtr, &length); + ddeItemData = DdeCreateDataHandle(ddeInstance, string, + (DWORD) length+1, 0, 0, CF_TEXT, 0); + + if (async) { + ddeData = DdeClientTransaction((LPBYTE) ddeItemData, + 0xFFFFFFFF, hConv, 0, + CF_TEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult); + DdeAbandonTransaction(ddeInstance, hConv, ddeResult); + } else { + ddeData = DdeClientTransaction((LPBYTE) ddeItemData, + 0xFFFFFFFF, hConv, 0, + CF_TEXT, XTYP_EXECUTE, 30000, NULL); + if (ddeData != 0) { + + ddeCookie = DdeCreateStringHandle(ddeInstance, + "$TCLEVAL$EXECUTE$RESULT", CP_WINANSI); + ddeData = DdeClientTransaction(NULL, 0, hConv, + ddeCookie, CF_TEXT, XTYP_REQUEST, 30000, NULL); + } } - if (result == TCL_ERROR) { - Tcl_ResetResult(interp); - if (Tcl_ListObjIndex(NULL, resultPtr, 3, - &objPtr) != TCL_OK) { + Tcl_DecrRefCount(objPtr); + + if (ddeData == 0) { + SetDdeError(interp); + goto errorNoResult; + } + + if (async == 0) { + Tcl_Obj *resultPtr; + + /* + * The return handle has a two or four element list in + * it. The first element is the return code (TCL_OK, + * TCL_ERROR, etc.). The second is the result of the + * script. If the return code is TCL_ERROR, then the third + * element is the value of the variable "errorCode", and + * the fourth is the value of the variable "errorInfo". + */ + + resultPtr = Tcl_NewObj(); + length = DdeGetData(ddeData, NULL, 0, 0); + Tcl_SetObjLength(resultPtr, length); + string = Tcl_GetString(resultPtr); + DdeGetData(ddeData, string, (DWORD) length, 0); + Tcl_SetObjLength(resultPtr, (int) strlen(string)); + + if (Tcl_ListObjIndex(NULL, resultPtr, 0, &objPtr) + != TCL_OK) { Tcl_DecrRefCount(resultPtr); - goto invalidServerResponse; + goto error; } - length = -1; - string = Tcl_GetStringFromObj(objPtr, &length); - Tcl_AddObjErrorInfo(interp, string, length); + if (Tcl_GetIntFromObj(NULL, objPtr, &result) != TCL_OK) { + Tcl_DecrRefCount(resultPtr); + goto error; + } + if (result == TCL_ERROR) { + Tcl_ResetResult(interp); - Tcl_ListObjIndex(NULL, resultPtr, 2, &objPtr); - Tcl_SetObjErrorCode(interp, objPtr); - } - if (Tcl_ListObjIndex(NULL, resultPtr, 1, &objPtr) != TCL_OK) { + if (Tcl_ListObjIndex(NULL, resultPtr, 3, &objPtr) + != TCL_OK) { + Tcl_DecrRefCount(resultPtr); + goto error; + } + length = -1; + string = Tcl_GetStringFromObj(objPtr, &length); + Tcl_AddObjErrorInfo(interp, string, length); + + Tcl_ListObjIndex(NULL, resultPtr, 2, &objPtr); + Tcl_SetObjErrorCode(interp, objPtr); + } + if (Tcl_ListObjIndex(NULL, resultPtr, 1, &objPtr) + != TCL_OK) { + Tcl_DecrRefCount(resultPtr); + goto error; + } + Tcl_SetObjResult(interp, objPtr); Tcl_DecrRefCount(resultPtr); - goto invalidServerResponse; } - Tcl_SetObjResult(interp, objPtr); - Tcl_DecrRefCount(resultPtr); } } } + if (ddeCookie != NULL) { + DdeFreeStringHandle(ddeInstance, ddeCookie); + } + if (ddeItem != NULL) { + DdeFreeStringHandle(ddeInstance, ddeItem); + } + if (ddeItemData != NULL) { + DdeFreeDataHandle(ddeItemData); + } + if (ddeData != NULL) { + DdeFreeDataHandle(ddeData); } + if (hConv != NULL) { + DdeDisconnect(hConv); + } + return result; - cleanup: + error: + Tcl_SetStringObj(Tcl_GetObjResult(interp), + "invalid data returned from server", -1); + + errorNoResult: if (ddeCookie != NULL) { DdeFreeStringHandle(ddeInstance, ddeCookie); } @@ -1695,15 +1508,5 @@ Tcl_DdeObjCmd( if (hConv != NULL) { DdeDisconnect(hConv); } - return result; + return TCL_ERROR; } - -/* - * Local variables: - * mode: c - * indent-tabs-mode: t - * tab-width: 8 - * c-basic-offset: 4 - * fill-column: 78 - * End: - */ |