diff options
Diffstat (limited to 'win/tclWinDde.c')
| -rw-r--r-- | win/tclWinDde.c | 1287 |
1 files changed, 0 insertions, 1287 deletions
diff --git a/win/tclWinDde.c b/win/tclWinDde.c deleted file mode 100644 index 9b0ec82..0000000 --- a/win/tclWinDde.c +++ /dev/null @@ -1,1287 +0,0 @@ -/* - * tclWinDde.c -- - * - * 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. - * - * RCS: @(#) $Id: tclWinDde.c,v 1.2 1999/04/16 00:48:08 stanton Exp $ - */ - -#include "tclPort.h" -#include <ddeml.h> - -/* - * 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. - */ - -typedef struct RegisteredInterp { - struct RegisteredInterp *nextPtr; - /* The next interp this application knows - * about. */ - char *name; /* Interpreter's name (malloc-ed). */ - Tcl_Interp *interp; /* The interpreter attached to this name. */ -} RegisteredInterp; - -/* - * Used to keep track of conversations. - */ - -typedef struct Conversation { - struct Conversation *nextPtr; - /* The next conversation in the list. */ - RegisteredInterp *riPtr; /* The info we know about the conversation. */ - HCONV hConv; /* The DDE handle for this conversation. */ - Tcl_Obj *returnPackagePtr; /* The result package for this conversation. */ -} Conversation; - -typedef struct ThreadSpecificData { - Conversation *currentConversations; - /* A list of conversations currently - * being processed. */ - RegisteredInterp *interpListPtr; - /* 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. - */ -static HSZ ddeService = 0; -static DWORD ddeInstance; /* The application instance handle given - * to us by DdeInitialize. */ -static int ddeIsServer = 0; - -TCL_DECLARE_MUTEX(ddeMutex) - -/* - * Forward declarations for procedures defined later in this file. - */ - -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)); -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 procedure initializes the dde command. - * - * Results: - * A standard Tcl result. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - -int -Dde_Init( - Tcl_Interp *interp) -{ - ThreadSpecificData *tsdPtr; - - if (!Tcl_InitStubs(interp, "8.0", 0)) { - return TCL_ERROR; - } - - Tcl_CreateObjCommand(interp, "dde", Tcl_DdeObjCmd, NULL, NULL); - - tsdPtr = (ThreadSpecificData *) - Tcl_GetThreadData((Tcl_ThreadDataKey *) &dataKey, sizeof(ThreadSpecificData)); - - if (tsdPtr == NULL) { - tsdPtr = TCL_TSD_INIT(&dataKey); - tsdPtr->currentConversations = NULL; - tsdPtr->interpListPtr = NULL; - } - Tcl_CreateExitHandler(DdeExitProc, NULL); - - return Tcl_PkgProvide(interp, "dde", "1.0"); -} - - - -static void -Initialize() -{ - 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. - */ - - if (tsdPtr->interpListPtr != NULL) { - nameFound = 1; - } - - /* - * 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) { - DdeUninitialize(ddeInstance); - ddeInstance = 0; - } - } - Tcl_MutexUnlock(&ddeMutex); - } - if ((ddeService == 0) && (nameFound != 0)) { - Tcl_MutexLock(&ddeMutex); - if ((ddeService == 0) && (nameFound != 0)) { - ddeIsServer = 1; - Tcl_CreateExitHandler(DdeExitProc, NULL); - ddeService = DdeCreateStringHandle(ddeInstance, "TclEval", 0); - DdeNameService(ddeInstance, ddeService, 0L, DNS_REGISTER); - } else { - ddeIsServer = 0; - } - Tcl_MutexUnlock(&ddeMutex); - } -} - - -/* - *-------------------------------------------------------------- - * - * DdeSetServerName -- - * - * 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. - * - * 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. - * - *-------------------------------------------------------------- - */ - -static char * -DdeSetServerName(interp, name) - 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 suffix, offset; - RegisteredInterp *riPtr, *prevPtr; - Tcl_DString dString; - 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. - */ - - for (riPtr = tsdPtr->interpListPtr, prevPtr = NULL; riPtr != NULL; - prevPtr = riPtr, riPtr = riPtr->nextPtr) { - if (riPtr->interp == interp) { - if (name != NULL) { - if (prevPtr == NULL) { - tsdPtr->interpListPtr = tsdPtr->interpListPtr->nextPtr; - } else { - prevPtr->nextPtr = riPtr->nextPtr; - } - break; - } else { - /* - * the name was NULL, so the caller is asking for - * the name of the current interp. - */ - - return riPtr->name; - } - } - } - - 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. - */ - - return ""; - } - - /* - * 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); - - /* - * We have found a unique name. Now add it to the registry. - */ - - riPtr = (RegisteredInterp *) ckalloc(sizeof(RegisteredInterp)); - riPtr->interp = interp; - riPtr->name = ckalloc(strlen(name) + 1); - riPtr->nextPtr = tsdPtr->interpListPtr; - tsdPtr->interpListPtr = riPtr; - strcpy(riPtr->name, name); - - Tcl_CreateObjCommand(interp, "dde", Tcl_DdeObjCmd, - (ClientData) riPtr, DeleteProc); - if (Tcl_IsSafe(interp)) { - Tcl_HideCommand(interp, "dde", "dde"); - } - Tcl_DStringFree(&dString); - - return riPtr->name; -} - -/* - *-------------------------------------------------------------- - * - * DeleteProc - * - * This procedure is called when the command "dde" is destroyed. - * - * Results: - * none - * - * Side effects: - * The interpreter given by riPtr is unregistered. - * - *-------------------------------------------------------------- - */ - -static void -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); - prevPtr = searchPtr, searchPtr = searchPtr->nextPtr) { - /* - * Empty loop body. - */ - } - - if (searchPtr != NULL) { - if (prevPtr == NULL) { - tsdPtr->interpListPtr = tsdPtr->interpListPtr->nextPtr; - } else { - prevPtr->nextPtr = searchPtr->nextPtr; - } - } - ckfree(riPtr->name); - Tcl_EventuallyFree(clientData, TCL_DYNAMIC); -} - -/* - *-------------------------------------------------------------- - * - * ExecuteRemoteObject -- - * - * 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. - * - * Side effects: - * A Tcl script is run, which can cause all kinds of other - * things to happen. - * - *-------------------------------------------------------------- - */ - -static Tcl_Obj * -ExecuteRemoteObject( - RegisteredInterp *riPtr, /* Info about this server. */ - Tcl_Obj *ddeObjectPtr) /* The object to execute. */ -{ - Tcl_Obj *errorObjPtr; - Tcl_Obj *returnPackagePtr; - int 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) { - errorObjPtr = Tcl_GetVar2Ex(riPtr->interp, "errorCode", NULL, - TCL_GLOBAL_ONLY); - Tcl_ListObjAppendElement(NULL, returnPackagePtr, errorObjPtr); - errorObjPtr = Tcl_GetVar2Ex(riPtr->interp, "errorInfo", NULL, - TCL_GLOBAL_ONLY); - 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. - * - * 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. - * - *-------------------------------------------------------------- - */ - -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 - * current transaction. */ - 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, /* Transaction-dependent data. */ - DWORD dwData2) /* Transaction-dependent data. */ -{ - Tcl_DString dString; - int len; - char *utilString; - Tcl_Obj *ddeObjectPtr; - HDDEDATA ddeReturn = NULL; - RegisteredInterp *riPtr; - Conversation *convPtr, *prevConvPtr; - 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. - */ - - len = DdeQueryString(ddeInstance, ddeTopic, NULL, 0, 0); - Tcl_DStringInit(&dString); - Tcl_DStringSetLength(&dString, len); - utilString = Tcl_DStringValue(&dString); - DdeQueryString(ddeInstance, ddeTopic, utilString, 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; - - 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. - */ - - len = DdeQueryString(ddeInstance, ddeTopic, NULL, 0, 0); - Tcl_DStringInit(&dString); - Tcl_DStringSetLength(&dString, len); - utilString = Tcl_DStringValue(&dString); - DdeQueryString(ddeInstance, ddeTopic, utilString, 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; - - case XTYP_DISCONNECT: - - /* - * 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; - } - } - 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; - } - - 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, - len + 1, CP_WINANSI); - if (stricmp(utilString, "$TCLEVAL$EXECUTE$RESULT") == 0) { - returnString = - Tcl_GetStringFromObj(convPtr->returnPackagePtr, &len); - ddeReturn = DdeCreateDataHandle(ddeInstance, - returnString, len+1, 0, ddeItem, CF_TEXT, - 0); - } else { - Tcl_Obj *variableObjPtr = Tcl_GetVar2Ex( - convPtr->riPtr->interp, utilString, NULL, - TCL_GLOBAL_ONLY); - if (variableObjPtr != NULL) { - returnString = Tcl_GetStringFromObj(variableObjPtr, - &len); - ddeReturn = DdeCreateDataHandle(ddeInstance, - returnString, len+1, 0, ddeItem, CF_TEXT, 0); - } else { - ddeReturn = NULL; - } - } - Tcl_DStringFree(&dString); - } - return ddeReturn; - - case XTYP_EXECUTE: { - - /* - * Execute this script. The results will be saved into - * a list object which will be retreived later. See - * ExecuteRemoteObject. - */ - - 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, &len); - 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); - for (convPtr = tsdPtr->currentConversations; (convPtr != NULL) - && (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) { - /* - * Empty loop body. - */ - - } - if (convPtr != NULL) { - Tcl_IncrRefCount(returnPackagePtr); - convPtr->returnPackagePtr = 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; - - 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, &len); - 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; - } - - } - return NULL; -} - - -/* - *-------------------------------------------------------------- - * - * DdeExitProc -- - * - * Gets rid of our DDE server when we go away. - * - * Results: - * None. - * - * Side effects: - * The DDE server is deleted. - * - *-------------------------------------------------------------- - */ - -static void -DdeExitProc( - ClientData clientData) /* Not used in this handler. */ -{ - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); - - DdeNameService(ddeInstance, NULL, 0, DNS_UNREGISTER); - DdeUninitialize(ddeInstance); - ddeInstance = 0; -} - -/* - *-------------------------------------------------------------- - * - * MakeDdeConnection -- - * - * 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 -MakeDdeConnection( - Tcl_Interp *interp, /* Used to report errors. */ - char *name, /* The connection to use. */ - HCONV *ddeConvPtr) -{ - HSZ ddeTopic, ddeService; - HCONV ddeConv; - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); - - ddeService = DdeCreateStringHandle(ddeInstance, "TclEval", 0); - ddeTopic = DdeCreateStringHandle(ddeInstance, name, 0); - - ddeConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL); - DdeFreeStringHandle(ddeInstance, ddeService); - DdeFreeStringHandle(ddeInstance, ddeTopic); - - if (ddeConv == (HCONV) NULL) { - if (interp != NULL) { - Tcl_AppendResult(interp, "no registered server named \"", - name, "\"", (char *) NULL); - } - return TCL_ERROR; - } - - *ddeConvPtr = ddeConv; - return TCL_OK; -} - -/* - *-------------------------------------------------------------- - * - * SetDdeError -- - * - * 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_Obj *resultPtr = Tcl_GetObjResult(interp); - int err; - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); - - 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; - - default: - Tcl_SetStringObj(resultPtr, "dde command failed", -1); - } -} - -/* - *-------------------------------------------------------------- - * - * Tcl_DdeObjCmd -- - * - * 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. - * - * Side effects: - * See the user documentation. - * - *-------------------------------------------------------------- - */ - -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 */ -{ - enum { - DDE_SERVERNAME, - DDE_EXECUTE, - DDE_REQUEST, - DDE_SERVICES, - DDE_EVAL - }; - - static char *ddeCommands[] = {"servername", "execute", - "request", "services", "eval", - (char *) NULL}; - static char *ddeOptions[] = {"-async", (char *) NULL}; - int index, argIndex; - int async = 0; - int result = TCL_OK; - HSZ ddeService = NULL; - HSZ ddeTopic = NULL; - HSZ ddeItem = NULL; - HDDEDATA ddeData = NULL; - HDDEDATA ddeItemData = NULL; - HCONV hConv; - HSZ ddeCookie = 0; - char *serviceName, *topicName, *itemString, *dataString; - char *string; - int firstArg, length, dataLength; - DWORD ddeResult; - 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, - "?-async? serviceName topicName value"); - return TCL_ERROR; - } - - if (Tcl_GetIndexFromObj(interp, objv[1], ddeCommands, "command", 0, - &index) != TCL_OK) { - return TCL_ERROR; - } - - 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; - } - async = 0; - firstArg = 2; - } else { - if (objc != 6) { - Tcl_WrongNumArgs(interp, 1, objv, - "execute ?-async? serviceName topicName value"); - return TCL_ERROR; - } - async = 1; - firstArg = 3; - } - break; - case DDE_REQUEST: - if (objc != 5) { - Tcl_WrongNumArgs(interp, 1, objv, - "request serviceName topicName value"); - return TCL_ERROR; - } - firstArg = 2; - break; - case DDE_SERVICES: - if (objc != 4) { - Tcl_WrongNumArgs(interp, 1, objv, - "services serviceName topicName"); - return TCL_ERROR; - } - firstArg = 2; - 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) { - Tcl_WrongNumArgs(interp, 1, objv, - "eval ?-async? serviceName args"); - return TCL_ERROR; - } - async = 1; - firstArg = 3; - } - break; - } - - if (firstArg != 1) { - serviceName = Tcl_GetStringFromObj(objv[firstArg], &length); - } else { - serviceName = NULL; - } - - if (length == 0) { - serviceName = NULL; - } else if (index != DDE_SERVERNAME) { - ddeService = DdeCreateStringHandle(ddeInstance, serviceName, - CP_WINANSI); - } - - 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); - } - } - - switch (index) { - case DDE_SERVERNAME: { - serviceName = DdeSetServerName(interp, serviceName); - if (serviceName != NULL) { - Tcl_SetStringObj(Tcl_GetObjResult(interp), - serviceName, -1); - Initialize(); - } else { - Tcl_ResetResult(interp); - } - break; - } - case DDE_EXECUTE: { - Initialize(); - 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); - - if (hConv == NULL) { - SetDdeError(interp); - result = TCL_ERROR; - break; - } - - ddeData = DdeCreateDataHandle(ddeInstance, dataString, - 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 { - ddeReturn = DdeClientTransaction((LPBYTE) ddeData, 0xFFFFFFFF, - hConv, 0, CF_TEXT, XTYP_EXECUTE, 30000, NULL); - if (ddeReturn == 0) { - SetDdeError(interp); - result = TCL_ERROR; - } - } - DdeFreeDataHandle(ddeData); - } else { - SetDdeError(interp); - result = TCL_ERROR; - } - DdeDisconnect(hConv); - break; - } - case DDE_REQUEST: { - Initialize(); - itemString = Tcl_GetStringFromObj(objv[firstArg + 2], &length); - if (length == 0) { - Tcl_SetStringObj(Tcl_GetObjResult(interp), - "cannot request value of null data", -1); - return TCL_ERROR; - } - hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, - NULL); - - 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 { - dataString = DdeAccessData(ddeData, &dataLength); - returnObjPtr = Tcl_NewStringObj(dataString, -1); - DdeUnaccessData(ddeData); - DdeFreeDataHandle(ddeData); - Tcl_SetObjResult(interp, returnObjPtr); - } - } else { - SetDdeError(interp); - result = TCL_ERROR; - } - DdeDisconnect(hConv); - } - - break; - } - case DDE_SERVICES: { - HCONVLIST hConvList; - CONVINFO convInfo; - Tcl_Obj *convListObjPtr, *elementObjPtr; - Tcl_DString dString; - char *name; - - Initialize(); - convInfo.cb = sizeof(CONVINFO); - hConvList = DdeConnectList(ddeInstance, ddeService, - ddeTopic, 0, NULL); - hConv = 0; - convListObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); - Tcl_DStringInit(&dString); - - while (hConv = DdeQueryNextServer(hConvList, hConv), hConv != 0) { - elementObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); - DdeQueryConvInfo(hConv, QID_SYNC, &convInfo); - length = DdeQueryString(ddeInstance, - convInfo.hszSvcPartner, NULL, 0, CP_WINANSI); - Tcl_DStringSetLength(&dString, length); - name = Tcl_DStringValue(&dString); - DdeQueryString(ddeInstance, convInfo.hszSvcPartner, - name, length + 1, CP_WINANSI); - Tcl_ListObjAppendElement(interp, elementObjPtr, - Tcl_NewStringObj(name, length)); - length = DdeQueryString(ddeInstance, convInfo.hszTopic, - NULL, 0, CP_WINANSI); - Tcl_DStringSetLength(&dString, length); - name = Tcl_DStringValue(&dString); - DdeQueryString(ddeInstance, convInfo.hszTopic, name, - length + 1, CP_WINANSI); - Tcl_ListObjAppendElement(interp, elementObjPtr, - Tcl_NewStringObj(name, length)); - Tcl_ListObjAppendElement(interp, convListObjPtr, elementObjPtr); - } - DdeDisconnectList(hConvList); - Tcl_SetObjResult(interp, convListObjPtr); - Tcl_DStringFree(&dString); - break; - } - case DDE_EVAL: { - Initialize(); - 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. - */ - - for (riPtr = tsdPtr->interpListPtr; riPtr != NULL; riPtr - = riPtr->nextPtr) { - if (stricmp(serviceName, riPtr->name) == 0) { - break; - } - } - - 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 (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); - Tcl_SetObjErrorCode(interp, objPtr); - } - 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) { - goto error; - } - - objPtr = Tcl_ConcatObj(objc, objv); - string = Tcl_GetStringFromObj(objPtr, &length); - ddeItemData = DdeCreateDataHandle(ddeInstance, string, 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); - } - } - - - Tcl_DecrRefCount(objPtr); - - if (ddeData == 0) { - SetDdeError(interp); - DdeFreeDataHandle(ddeItemData); - DdeDisconnect(hConv); - goto 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". - */ - - resultPtr = Tcl_NewObj(); - length = DdeGetData(ddeData, NULL, 0, 0); - Tcl_SetObjLength(resultPtr, length); - string = Tcl_GetString(resultPtr); - DdeGetData(ddeData, string, length, 0); - Tcl_SetObjLength(resultPtr, strlen(string)); - - if (Tcl_ListObjIndex(NULL, resultPtr, 0, &objPtr) != TCL_OK) { - Tcl_DecrRefCount(resultPtr); - goto error; - } - if (Tcl_GetIntFromObj(NULL, objPtr, &result) != TCL_OK) { - Tcl_DecrRefCount(resultPtr); - goto error; - } - if (result == TCL_ERROR) { - Tcl_ResetResult(interp); - - 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); - } - } - } - } - 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; - - error: - Tcl_SetStringObj(Tcl_GetObjResult(interp), - "invalid data returned from server", -1); - 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 TCL_ERROR; -} |