1 |
/* $Header$ */
|
2 |
/*
|
3 |
* tclWinDde.c --
|
4 |
*
|
5 |
* This file provides procedures that implement the "send"
|
6 |
* command, allowing commands to be passed from interpreter
|
7 |
* to interpreter.
|
8 |
*
|
9 |
* Copyright (c) 1997 by Sun Microsystems, Inc.
|
10 |
*
|
11 |
* See the file "license.terms" for information on usage and redistribution
|
12 |
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
13 |
*
|
14 |
* RCS: @(#) $Id: tclwindde.c,v 1.1.1.1 2001/06/13 04:48:43 dtashley Exp $
|
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*/
|
16 |
|
17 |
#include "tclPort.h"
|
18 |
#include <ddeml.h>
|
19 |
|
20 |
/*
|
21 |
* TCL_STORAGE_CLASS is set unconditionally to DLLEXPORT because the
|
22 |
* Registry_Init declaration is in the source file itself, which is only
|
23 |
* accessed when we are building a library.
|
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*/
|
25 |
|
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#undef TCL_STORAGE_CLASS
|
27 |
#define TCL_STORAGE_CLASS DLLEXPORT
|
28 |
|
29 |
/*
|
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* The following structure is used to keep track of the interpreters
|
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* registered by this process.
|
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*/
|
33 |
|
34 |
typedef struct RegisteredInterp {
|
35 |
struct RegisteredInterp *nextPtr;
|
36 |
/* The next interp this application knows
|
37 |
* about. */
|
38 |
char *name; /* Interpreter's name (malloc-ed). */
|
39 |
Tcl_Interp *interp; /* The interpreter attached to this name. */
|
40 |
} RegisteredInterp;
|
41 |
|
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/*
|
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* Used to keep track of conversations.
|
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*/
|
45 |
|
46 |
typedef struct Conversation {
|
47 |
struct Conversation *nextPtr;
|
48 |
/* The next conversation in the list. */
|
49 |
RegisteredInterp *riPtr; /* The info we know about the conversation. */
|
50 |
HCONV hConv; /* The DDE handle for this conversation. */
|
51 |
Tcl_Obj *returnPackagePtr; /* The result package for this conversation. */
|
52 |
} Conversation;
|
53 |
|
54 |
typedef struct ThreadSpecificData {
|
55 |
Conversation *currentConversations;
|
56 |
/* A list of conversations currently
|
57 |
* being processed. */
|
58 |
RegisteredInterp *interpListPtr;
|
59 |
/* List of all interpreters registered
|
60 |
* in the current process. */
|
61 |
} ThreadSpecificData;
|
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static Tcl_ThreadDataKey dataKey;
|
63 |
|
64 |
/*
|
65 |
* The following variables cannot be placed in thread-local storage.
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* The Mutex ddeMutex guards access to the ddeInstance.
|
67 |
*/
|
68 |
static HSZ ddeServiceGlobal = 0;
|
69 |
static DWORD ddeInstance; /* The application instance handle given
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70 |
* to us by DdeInitialize. */
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71 |
static int ddeIsServer = 0;
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#define TCL_DDE_VERSION "1.1"
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#define TCL_DDE_PACKAGE_NAME "dde"
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#define TCL_DDE_SERVICE_NAME "TclEval"
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77 |
TCL_DECLARE_MUTEX(ddeMutex)
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|
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/*
|
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* Forward declarations for procedures defined later in this file.
|
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*/
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static void DdeExitProc _ANSI_ARGS_((ClientData clientData));
|
84 |
static void DeleteProc _ANSI_ARGS_((ClientData clientData));
|
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static Tcl_Obj * ExecuteRemoteObject _ANSI_ARGS_((
|
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RegisteredInterp *riPtr,
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Tcl_Obj *ddeObjectPtr));
|
88 |
static int MakeDdeConnection _ANSI_ARGS_((Tcl_Interp *interp,
|
89 |
char *name, HCONV *ddeConvPtr));
|
90 |
static HDDEDATA CALLBACK DdeServerProc _ANSI_ARGS_((UINT uType,
|
91 |
UINT uFmt, HCONV hConv, HSZ ddeTopic,
|
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HSZ ddeItem, HDDEDATA hData, DWORD dwData1,
|
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DWORD dwData2));
|
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static void SetDdeError _ANSI_ARGS_((Tcl_Interp *interp));
|
95 |
int Tcl_DdeObjCmd(ClientData clientData, /* Used only for deletion */
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Tcl_Interp *interp, /* The interp we are sending from */
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int objc, /* Number of arguments */
|
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Tcl_Obj *CONST objv[]); /* The arguments */
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EXTERN int Dde_Init(Tcl_Interp *interp);
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|
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/*
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*----------------------------------------------------------------------
|
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*
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* Dde_Init --
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*
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* This procedure initializes the dde command.
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*
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* Results:
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* A standard Tcl result.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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int
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Dde_Init(
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Tcl_Interp *interp)
|
121 |
{
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ThreadSpecificData *tsdPtr;
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if (!Tcl_InitStubs(interp, "8.0", 0)) {
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return TCL_ERROR;
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}
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Tcl_CreateObjCommand(interp, "dde", Tcl_DdeObjCmd, NULL, NULL);
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tsdPtr = (ThreadSpecificData *)
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Tcl_GetThreadData((Tcl_ThreadDataKey *) &dataKey, sizeof(ThreadSpecificData));
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133 |
if (tsdPtr == NULL) {
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tsdPtr = TCL_TSD_INIT(&dataKey);
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tsdPtr->currentConversations = NULL;
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tsdPtr->interpListPtr = NULL;
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}
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Tcl_CreateExitHandler(DdeExitProc, NULL);
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139 |
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return Tcl_PkgProvide(interp, TCL_DDE_PACKAGE_NAME, TCL_DDE_VERSION);
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}
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142 |
|
143 |
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144 |
/*
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*----------------------------------------------------------------------
|
146 |
*
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* Initialize --
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148 |
*
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* Initialize the global DDE instance.
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150 |
*
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* Results:
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* None.
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*
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* Side effects:
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* Registers the DDE server proc.
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*
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*----------------------------------------------------------------------
|
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*/
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159 |
|
160 |
static void
|
161 |
Initialize(void)
|
162 |
{
|
163 |
int nameFound = 0;
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164 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
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165 |
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166 |
/*
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* See if the application is already registered; if so, remove its
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* current name from the registry. The deletion of the command
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* will take care of disposing of this entry.
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*/
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171 |
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if (tsdPtr->interpListPtr != NULL) {
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nameFound = 1;
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}
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175 |
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/*
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* Make sure that the DDE server is there. This is done only once,
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* add an exit handler tear it down.
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*/
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if (ddeInstance == 0) {
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Tcl_MutexLock(&ddeMutex);
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if (ddeInstance == 0) {
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if (DdeInitialize(&ddeInstance, DdeServerProc,
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CBF_SKIP_REGISTRATIONS
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| CBF_SKIP_UNREGISTRATIONS
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| CBF_FAIL_POKES, 0)
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!= DMLERR_NO_ERROR) {
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ddeInstance = 0;
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190 |
}
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191 |
}
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192 |
Tcl_MutexUnlock(&ddeMutex);
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193 |
}
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194 |
if ((ddeServiceGlobal == 0) && (nameFound != 0)) {
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195 |
Tcl_MutexLock(&ddeMutex);
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196 |
if ((ddeServiceGlobal == 0) && (nameFound != 0)) {
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197 |
ddeIsServer = 1;
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198 |
Tcl_CreateExitHandler(DdeExitProc, NULL);
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199 |
ddeServiceGlobal = DdeCreateStringHandle(ddeInstance, \
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200 |
TCL_DDE_SERVICE_NAME, 0);
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201 |
DdeNameService(ddeInstance, ddeServiceGlobal, 0L, DNS_REGISTER);
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202 |
} else {
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203 |
ddeIsServer = 0;
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204 |
}
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205 |
Tcl_MutexUnlock(&ddeMutex);
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206 |
}
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207 |
}
|
208 |
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209 |
/*
|
210 |
*--------------------------------------------------------------
|
211 |
*
|
212 |
* DdeSetServerName --
|
213 |
*
|
214 |
* This procedure is called to associate an ASCII name with a Dde
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215 |
* server. If the interpreter has already been named, the
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216 |
* name replaces the old one.
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217 |
*
|
218 |
* Results:
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219 |
* The return value is the name actually given to the interp.
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220 |
* This will normally be the same as name, but if name was already
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221 |
* in use for a Dde Server then a name of the form "name #2" will
|
222 |
* be chosen, with a high enough number to make the name unique.
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223 |
*
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224 |
* Side effects:
|
225 |
* Registration info is saved, thereby allowing the "send" command
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226 |
* to be used later to invoke commands in the application. In
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227 |
* addition, the "send" command is created in the application's
|
228 |
* interpreter. The registration will be removed automatically
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229 |
* if the interpreter is deleted or the "send" command is removed.
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230 |
*
|
231 |
*--------------------------------------------------------------
|
232 |
*/
|
233 |
|
234 |
static char *
|
235 |
DdeSetServerName(
|
236 |
Tcl_Interp *interp,
|
237 |
char *name /* The name that will be used to
|
238 |
* refer to the interpreter in later
|
239 |
* "send" commands. Must be globally
|
240 |
* unique. */
|
241 |
)
|
242 |
{
|
243 |
int suffix, offset;
|
244 |
RegisteredInterp *riPtr, *prevPtr;
|
245 |
Tcl_DString dString;
|
246 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
247 |
|
248 |
/*
|
249 |
* See if the application is already registered; if so, remove its
|
250 |
* current name from the registry. The deletion of the command
|
251 |
* will take care of disposing of this entry.
|
252 |
*/
|
253 |
|
254 |
for (riPtr = tsdPtr->interpListPtr, prevPtr = NULL; riPtr != NULL;
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255 |
prevPtr = riPtr, riPtr = riPtr->nextPtr) {
|
256 |
if (riPtr->interp == interp) {
|
257 |
if (name != NULL) {
|
258 |
if (prevPtr == NULL) {
|
259 |
tsdPtr->interpListPtr = tsdPtr->interpListPtr->nextPtr;
|
260 |
} else {
|
261 |
prevPtr->nextPtr = riPtr->nextPtr;
|
262 |
}
|
263 |
break;
|
264 |
} else {
|
265 |
/*
|
266 |
* the name was NULL, so the caller is asking for
|
267 |
* the name of the current interp.
|
268 |
*/
|
269 |
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270 |
return riPtr->name;
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271 |
}
|
272 |
}
|
273 |
}
|
274 |
|
275 |
if (name == NULL) {
|
276 |
/*
|
277 |
* the name was NULL, so the caller is asking for
|
278 |
* the name of the current interp, but it doesn't
|
279 |
* have a name.
|
280 |
*/
|
281 |
|
282 |
return "";
|
283 |
}
|
284 |
|
285 |
/*
|
286 |
* Pick a name to use for the application. Use "name" if it's not
|
287 |
* already in use. Otherwise add a suffix such as " #2", trying
|
288 |
* larger and larger numbers until we eventually find one that is
|
289 |
* unique.
|
290 |
*/
|
291 |
|
292 |
suffix = 1;
|
293 |
offset = 0;
|
294 |
Tcl_DStringInit(&dString);
|
295 |
|
296 |
/*
|
297 |
* We have found a unique name. Now add it to the registry.
|
298 |
*/
|
299 |
|
300 |
riPtr = (RegisteredInterp *) ckalloc(sizeof(RegisteredInterp));
|
301 |
riPtr->interp = interp;
|
302 |
riPtr->name = ckalloc(strlen(name) + 1);
|
303 |
riPtr->nextPtr = tsdPtr->interpListPtr;
|
304 |
tsdPtr->interpListPtr = riPtr;
|
305 |
strcpy(riPtr->name, name);
|
306 |
|
307 |
Tcl_CreateObjCommand(interp, "dde", Tcl_DdeObjCmd,
|
308 |
(ClientData) riPtr, DeleteProc);
|
309 |
if (Tcl_IsSafe(interp)) {
|
310 |
Tcl_HideCommand(interp, "dde", "dde");
|
311 |
}
|
312 |
Tcl_DStringFree(&dString);
|
313 |
|
314 |
/*
|
315 |
* re-initialize with the new name
|
316 |
*/
|
317 |
Initialize();
|
318 |
|
319 |
return riPtr->name;
|
320 |
}
|
321 |
|
322 |
/*
|
323 |
*--------------------------------------------------------------
|
324 |
*
|
325 |
* DeleteProc
|
326 |
*
|
327 |
* This procedure is called when the command "dde" is destroyed.
|
328 |
*
|
329 |
* Results:
|
330 |
* none
|
331 |
*
|
332 |
* Side effects:
|
333 |
* The interpreter given by riPtr is unregistered.
|
334 |
*
|
335 |
*--------------------------------------------------------------
|
336 |
*/
|
337 |
|
338 |
static void
|
339 |
DeleteProc(clientData)
|
340 |
ClientData clientData; /* The interp we are deleting passed
|
341 |
* as ClientData. */
|
342 |
{
|
343 |
RegisteredInterp *riPtr = (RegisteredInterp *) clientData;
|
344 |
RegisteredInterp *searchPtr, *prevPtr;
|
345 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
346 |
|
347 |
for (searchPtr = tsdPtr->interpListPtr, prevPtr = NULL;
|
348 |
(searchPtr != NULL) && (searchPtr != riPtr);
|
349 |
prevPtr = searchPtr, searchPtr = searchPtr->nextPtr) {
|
350 |
/*
|
351 |
* Empty loop body.
|
352 |
*/
|
353 |
}
|
354 |
|
355 |
if (searchPtr != NULL) {
|
356 |
if (prevPtr == NULL) {
|
357 |
tsdPtr->interpListPtr = tsdPtr->interpListPtr->nextPtr;
|
358 |
} else {
|
359 |
prevPtr->nextPtr = searchPtr->nextPtr;
|
360 |
}
|
361 |
}
|
362 |
ckfree(riPtr->name);
|
363 |
Tcl_EventuallyFree(clientData, TCL_DYNAMIC);
|
364 |
}
|
365 |
|
366 |
/*
|
367 |
*--------------------------------------------------------------
|
368 |
*
|
369 |
* ExecuteRemoteObject --
|
370 |
*
|
371 |
* Takes the package delivered by DDE and executes it in
|
372 |
* the server's interpreter.
|
373 |
*
|
374 |
* Results:
|
375 |
* A list Tcl_Obj * that describes what happened. The first
|
376 |
* element is the numerical return code (TCL_ERROR, etc.).
|
377 |
* The second element is the result of the script. If the
|
378 |
* return result was TCL_ERROR, then the third element
|
379 |
* will be the value of the global "errorCode", and the
|
380 |
* fourth will be the value of the global "errorInfo".
|
381 |
* The return result will have a refCount of 0.
|
382 |
*
|
383 |
* Side effects:
|
384 |
* A Tcl script is run, which can cause all kinds of other
|
385 |
* things to happen.
|
386 |
*
|
387 |
*--------------------------------------------------------------
|
388 |
*/
|
389 |
|
390 |
static Tcl_Obj *
|
391 |
ExecuteRemoteObject(
|
392 |
RegisteredInterp *riPtr, /* Info about this server. */
|
393 |
Tcl_Obj *ddeObjectPtr) /* The object to execute. */
|
394 |
{
|
395 |
Tcl_Obj *errorObjPtr;
|
396 |
Tcl_Obj *returnPackagePtr;
|
397 |
int result;
|
398 |
|
399 |
result = Tcl_EvalObjEx(riPtr->interp, ddeObjectPtr, TCL_EVAL_GLOBAL);
|
400 |
returnPackagePtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
|
401 |
Tcl_ListObjAppendElement(NULL, returnPackagePtr,
|
402 |
Tcl_NewIntObj(result));
|
403 |
Tcl_ListObjAppendElement(NULL, returnPackagePtr,
|
404 |
Tcl_GetObjResult(riPtr->interp));
|
405 |
if (result == TCL_ERROR) {
|
406 |
errorObjPtr = Tcl_GetVar2Ex(riPtr->interp, "errorCode", NULL,
|
407 |
TCL_GLOBAL_ONLY);
|
408 |
Tcl_ListObjAppendElement(NULL, returnPackagePtr, errorObjPtr);
|
409 |
errorObjPtr = Tcl_GetVar2Ex(riPtr->interp, "errorInfo", NULL,
|
410 |
TCL_GLOBAL_ONLY);
|
411 |
Tcl_ListObjAppendElement(NULL, returnPackagePtr, errorObjPtr);
|
412 |
}
|
413 |
|
414 |
return returnPackagePtr;
|
415 |
}
|
416 |
|
417 |
/*
|
418 |
*--------------------------------------------------------------
|
419 |
*
|
420 |
* DdeServerProc --
|
421 |
*
|
422 |
* Handles all transactions for this server. Can handle
|
423 |
* execute, request, and connect protocols. Dde will
|
424 |
* call this routine when a client attempts to run a dde
|
425 |
* command using this server.
|
426 |
*
|
427 |
* Results:
|
428 |
* A DDE Handle with the result of the dde command.
|
429 |
*
|
430 |
* Side effects:
|
431 |
* Depending on which command is executed, arbitrary
|
432 |
* Tcl scripts can be run.
|
433 |
*
|
434 |
*--------------------------------------------------------------
|
435 |
*/
|
436 |
|
437 |
static HDDEDATA CALLBACK
|
438 |
DdeServerProc (
|
439 |
UINT uType, /* The type of DDE transaction we
|
440 |
* are performing. */
|
441 |
UINT uFmt, /* The format that data is sent or
|
442 |
* received. */
|
443 |
HCONV hConv, /* The conversation associated with the
|
444 |
* current transaction. */
|
445 |
HSZ ddeTopic, /* A string handle. Transaction-type
|
446 |
* dependent. */
|
447 |
HSZ ddeItem, /* A string handle. Transaction-type
|
448 |
* dependent. */
|
449 |
HDDEDATA hData, /* DDE data. Transaction-type dependent. */
|
450 |
DWORD dwData1, /* Transaction-dependent data. */
|
451 |
DWORD dwData2) /* Transaction-dependent data. */
|
452 |
{
|
453 |
Tcl_DString dString;
|
454 |
int len;
|
455 |
char *utilString;
|
456 |
Tcl_Obj *ddeObjectPtr;
|
457 |
HDDEDATA ddeReturn = NULL;
|
458 |
RegisteredInterp *riPtr;
|
459 |
Conversation *convPtr, *prevConvPtr;
|
460 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
461 |
|
462 |
switch(uType) {
|
463 |
case XTYP_CONNECT:
|
464 |
|
465 |
/*
|
466 |
* Dde is trying to initialize a conversation with us. Check
|
467 |
* and make sure we have a valid topic.
|
468 |
*/
|
469 |
|
470 |
len = DdeQueryString(ddeInstance, ddeTopic, NULL, 0, 0);
|
471 |
Tcl_DStringInit(&dString);
|
472 |
Tcl_DStringSetLength(&dString, len);
|
473 |
utilString = Tcl_DStringValue(&dString);
|
474 |
DdeQueryString(ddeInstance, ddeTopic, utilString, len + 1,
|
475 |
CP_WINANSI);
|
476 |
|
477 |
for (riPtr = tsdPtr->interpListPtr; riPtr != NULL;
|
478 |
riPtr = riPtr->nextPtr) {
|
479 |
if (stricmp(utilString, riPtr->name) == 0) {
|
480 |
Tcl_DStringFree(&dString);
|
481 |
return (HDDEDATA) TRUE;
|
482 |
}
|
483 |
}
|
484 |
|
485 |
Tcl_DStringFree(&dString);
|
486 |
return (HDDEDATA) FALSE;
|
487 |
|
488 |
case XTYP_CONNECT_CONFIRM:
|
489 |
|
490 |
/*
|
491 |
* Dde has decided that we can connect, so it gives us a
|
492 |
* conversation handle. We need to keep track of it
|
493 |
* so we know which execution result to return in an
|
494 |
* XTYP_REQUEST.
|
495 |
*/
|
496 |
|
497 |
len = DdeQueryString(ddeInstance, ddeTopic, NULL, 0, 0);
|
498 |
Tcl_DStringInit(&dString);
|
499 |
Tcl_DStringSetLength(&dString, len);
|
500 |
utilString = Tcl_DStringValue(&dString);
|
501 |
DdeQueryString(ddeInstance, ddeTopic, utilString, len + 1,
|
502 |
CP_WINANSI);
|
503 |
for (riPtr = tsdPtr->interpListPtr; riPtr != NULL;
|
504 |
riPtr = riPtr->nextPtr) {
|
505 |
if (stricmp(riPtr->name, utilString) == 0) {
|
506 |
convPtr = (Conversation *) ckalloc(sizeof(Conversation));
|
507 |
convPtr->nextPtr = tsdPtr->currentConversations;
|
508 |
convPtr->returnPackagePtr = NULL;
|
509 |
convPtr->hConv = hConv;
|
510 |
convPtr->riPtr = riPtr;
|
511 |
tsdPtr->currentConversations = convPtr;
|
512 |
break;
|
513 |
}
|
514 |
}
|
515 |
Tcl_DStringFree(&dString);
|
516 |
return (HDDEDATA) TRUE;
|
517 |
|
518 |
case XTYP_DISCONNECT:
|
519 |
|
520 |
/*
|
521 |
* The client has disconnected from our server. Forget this
|
522 |
* conversation.
|
523 |
*/
|
524 |
|
525 |
for (convPtr = tsdPtr->currentConversations, prevConvPtr = NULL;
|
526 |
convPtr != NULL;
|
527 |
prevConvPtr = convPtr, convPtr = convPtr->nextPtr) {
|
528 |
if (hConv == convPtr->hConv) {
|
529 |
if (prevConvPtr == NULL) {
|
530 |
tsdPtr->currentConversations = convPtr->nextPtr;
|
531 |
} else {
|
532 |
prevConvPtr->nextPtr = convPtr->nextPtr;
|
533 |
}
|
534 |
if (convPtr->returnPackagePtr != NULL) {
|
535 |
Tcl_DecrRefCount(convPtr->returnPackagePtr);
|
536 |
}
|
537 |
ckfree((char *) convPtr);
|
538 |
break;
|
539 |
}
|
540 |
}
|
541 |
return (HDDEDATA) TRUE;
|
542 |
|
543 |
case XTYP_REQUEST:
|
544 |
|
545 |
/*
|
546 |
* This could be either a request for a value of a Tcl variable,
|
547 |
* or it could be the send command requesting the results of the
|
548 |
* last execute.
|
549 |
*/
|
550 |
|
551 |
if (uFmt != CF_TEXT) {
|
552 |
return (HDDEDATA) FALSE;
|
553 |
}
|
554 |
|
555 |
ddeReturn = (HDDEDATA) FALSE;
|
556 |
for (convPtr = tsdPtr->currentConversations; (convPtr != NULL)
|
557 |
&& (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) {
|
558 |
/*
|
559 |
* Empty loop body.
|
560 |
*/
|
561 |
}
|
562 |
|
563 |
if (convPtr != NULL) {
|
564 |
char *returnString;
|
565 |
|
566 |
len = DdeQueryString(ddeInstance, ddeItem, NULL, 0,
|
567 |
CP_WINANSI);
|
568 |
Tcl_DStringInit(&dString);
|
569 |
Tcl_DStringSetLength(&dString, len);
|
570 |
utilString = Tcl_DStringValue(&dString);
|
571 |
DdeQueryString(ddeInstance, ddeItem, utilString,
|
572 |
len + 1, CP_WINANSI);
|
573 |
if (stricmp(utilString, "$TCLEVAL$EXECUTE$RESULT") == 0) {
|
574 |
returnString =
|
575 |
Tcl_GetStringFromObj(convPtr->returnPackagePtr, &len);
|
576 |
ddeReturn = DdeCreateDataHandle(ddeInstance,
|
577 |
returnString, len+1, 0, ddeItem, CF_TEXT,
|
578 |
0);
|
579 |
} else {
|
580 |
Tcl_Obj *variableObjPtr = Tcl_GetVar2Ex(
|
581 |
convPtr->riPtr->interp, utilString, NULL,
|
582 |
TCL_GLOBAL_ONLY);
|
583 |
if (variableObjPtr != NULL) {
|
584 |
returnString = Tcl_GetStringFromObj(variableObjPtr,
|
585 |
&len);
|
586 |
ddeReturn = DdeCreateDataHandle(ddeInstance,
|
587 |
returnString, len+1, 0, ddeItem, CF_TEXT, 0);
|
588 |
} else {
|
589 |
ddeReturn = NULL;
|
590 |
}
|
591 |
}
|
592 |
Tcl_DStringFree(&dString);
|
593 |
}
|
594 |
return ddeReturn;
|
595 |
|
596 |
case XTYP_EXECUTE: {
|
597 |
|
598 |
/*
|
599 |
* Execute this script. The results will be saved into
|
600 |
* a list object which will be retreived later. See
|
601 |
* ExecuteRemoteObject.
|
602 |
*/
|
603 |
|
604 |
Tcl_Obj *returnPackagePtr;
|
605 |
|
606 |
for (convPtr = tsdPtr->currentConversations; (convPtr != NULL)
|
607 |
&& (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) {
|
608 |
/*
|
609 |
* Empty loop body.
|
610 |
*/
|
611 |
|
612 |
}
|
613 |
|
614 |
if (convPtr == NULL) {
|
615 |
return (HDDEDATA) DDE_FNOTPROCESSED;
|
616 |
}
|
617 |
|
618 |
utilString = (char *) DdeAccessData(hData, &len);
|
619 |
ddeObjectPtr = Tcl_NewStringObj(utilString, -1);
|
620 |
Tcl_IncrRefCount(ddeObjectPtr);
|
621 |
DdeUnaccessData(hData);
|
622 |
if (convPtr->returnPackagePtr != NULL) {
|
623 |
Tcl_DecrRefCount(convPtr->returnPackagePtr);
|
624 |
}
|
625 |
convPtr->returnPackagePtr = NULL;
|
626 |
returnPackagePtr =
|
627 |
ExecuteRemoteObject(convPtr->riPtr, ddeObjectPtr);
|
628 |
for (convPtr = tsdPtr->currentConversations; (convPtr != NULL)
|
629 |
&& (convPtr->hConv != hConv); convPtr = convPtr->nextPtr) {
|
630 |
/*
|
631 |
* Empty loop body.
|
632 |
*/
|
633 |
|
634 |
}
|
635 |
if (convPtr != NULL) {
|
636 |
Tcl_IncrRefCount(returnPackagePtr);
|
637 |
convPtr->returnPackagePtr = returnPackagePtr;
|
638 |
}
|
639 |
Tcl_DecrRefCount(ddeObjectPtr);
|
640 |
if (returnPackagePtr == NULL) {
|
641 |
return (HDDEDATA) DDE_FNOTPROCESSED;
|
642 |
} else {
|
643 |
return (HDDEDATA) DDE_FACK;
|
644 |
}
|
645 |
}
|
646 |
|
647 |
case XTYP_WILDCONNECT: {
|
648 |
|
649 |
/*
|
650 |
* Dde wants a list of services and topics that we support.
|
651 |
*/
|
652 |
|
653 |
HSZPAIR *returnPtr;
|
654 |
int i;
|
655 |
int numItems;
|
656 |
|
657 |
for (i = 0, riPtr = tsdPtr->interpListPtr; riPtr != NULL;
|
658 |
i++, riPtr = riPtr->nextPtr) {
|
659 |
/*
|
660 |
* Empty loop body.
|
661 |
*/
|
662 |
|
663 |
}
|
664 |
|
665 |
numItems = i;
|
666 |
ddeReturn = DdeCreateDataHandle(ddeInstance, NULL,
|
667 |
(numItems + 1) * sizeof(HSZPAIR), 0, 0, 0, 0);
|
668 |
returnPtr = (HSZPAIR *) DdeAccessData(ddeReturn, &len);
|
669 |
for (i = 0, riPtr = tsdPtr->interpListPtr; i < numItems;
|
670 |
i++, riPtr = riPtr->nextPtr) {
|
671 |
returnPtr[i].hszSvc = DdeCreateStringHandle(
|
672 |
ddeInstance, "TclEval", CP_WINANSI);
|
673 |
returnPtr[i].hszTopic = DdeCreateStringHandle(
|
674 |
ddeInstance, riPtr->name, CP_WINANSI);
|
675 |
}
|
676 |
returnPtr[i].hszSvc = NULL;
|
677 |
returnPtr[i].hszTopic = NULL;
|
678 |
DdeUnaccessData(ddeReturn);
|
679 |
return ddeReturn;
|
680 |
}
|
681 |
|
682 |
}
|
683 |
return NULL;
|
684 |
}
|
685 |
|
686 |
/*
|
687 |
*--------------------------------------------------------------
|
688 |
*
|
689 |
* DdeExitProc --
|
690 |
*
|
691 |
* Gets rid of our DDE server when we go away.
|
692 |
*
|
693 |
* Results:
|
694 |
* None.
|
695 |
*
|
696 |
* Side effects:
|
697 |
* The DDE server is deleted.
|
698 |
*
|
699 |
*--------------------------------------------------------------
|
700 |
*/
|
701 |
|
702 |
static void
|
703 |
DdeExitProc(
|
704 |
ClientData clientData) /* Not used in this handler. */
|
705 |
{
|
706 |
DdeNameService(ddeInstance, NULL, 0, DNS_UNREGISTER);
|
707 |
DdeUninitialize(ddeInstance);
|
708 |
ddeInstance = 0;
|
709 |
}
|
710 |
|
711 |
/*
|
712 |
*--------------------------------------------------------------
|
713 |
*
|
714 |
* MakeDdeConnection --
|
715 |
*
|
716 |
* This procedure is a utility used to connect to a DDE
|
717 |
* server when given a server name and a topic name.
|
718 |
*
|
719 |
* Results:
|
720 |
* A standard Tcl result.
|
721 |
*
|
722 |
*
|
723 |
* Side effects:
|
724 |
* Passes back a conversation through ddeConvPtr
|
725 |
*
|
726 |
*--------------------------------------------------------------
|
727 |
*/
|
728 |
|
729 |
static int
|
730 |
MakeDdeConnection(
|
731 |
Tcl_Interp *interp, /* Used to report errors. */
|
732 |
char *name, /* The connection to use. */
|
733 |
HCONV *ddeConvPtr)
|
734 |
{
|
735 |
HSZ ddeTopic, ddeService;
|
736 |
HCONV ddeConv;
|
737 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
738 |
|
739 |
ddeService = DdeCreateStringHandle(ddeInstance, "TclEval", 0);
|
740 |
ddeTopic = DdeCreateStringHandle(ddeInstance, name, 0);
|
741 |
|
742 |
ddeConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL);
|
743 |
DdeFreeStringHandle(ddeInstance, ddeService);
|
744 |
DdeFreeStringHandle(ddeInstance, ddeTopic);
|
745 |
|
746 |
if (ddeConv == (HCONV) NULL) {
|
747 |
if (interp != NULL) {
|
748 |
Tcl_AppendResult(interp, "no registered server named \"",
|
749 |
name, "\"", (char *) NULL);
|
750 |
}
|
751 |
return TCL_ERROR;
|
752 |
}
|
753 |
|
754 |
*ddeConvPtr = ddeConv;
|
755 |
return TCL_OK;
|
756 |
}
|
757 |
|
758 |
/*
|
759 |
*--------------------------------------------------------------
|
760 |
*
|
761 |
* SetDdeError --
|
762 |
*
|
763 |
* Sets the interp result to a cogent error message
|
764 |
* describing the last DDE error.
|
765 |
*
|
766 |
* Results:
|
767 |
* None.
|
768 |
*
|
769 |
*
|
770 |
* Side effects:
|
771 |
* The interp's result object is changed.
|
772 |
*
|
773 |
*--------------------------------------------------------------
|
774 |
*/
|
775 |
|
776 |
static void
|
777 |
SetDdeError(
|
778 |
Tcl_Interp *interp) /* The interp to put the message in.*/
|
779 |
{
|
780 |
Tcl_Obj *resultPtr = Tcl_GetObjResult(interp);
|
781 |
int err;
|
782 |
|
783 |
err = DdeGetLastError(ddeInstance);
|
784 |
switch (err) {
|
785 |
case DMLERR_DATAACKTIMEOUT:
|
786 |
case DMLERR_EXECACKTIMEOUT:
|
787 |
case DMLERR_POKEACKTIMEOUT:
|
788 |
Tcl_SetStringObj(resultPtr,
|
789 |
"remote interpreter did not respond", -1);
|
790 |
break;
|
791 |
|
792 |
case DMLERR_BUSY:
|
793 |
Tcl_SetStringObj(resultPtr, "remote server is busy", -1);
|
794 |
break;
|
795 |
|
796 |
case DMLERR_NOTPROCESSED:
|
797 |
Tcl_SetStringObj(resultPtr,
|
798 |
"remote server cannot handle this command", -1);
|
799 |
break;
|
800 |
|
801 |
default:
|
802 |
Tcl_SetStringObj(resultPtr, "dde command failed", -1);
|
803 |
}
|
804 |
}
|
805 |
|
806 |
/*
|
807 |
*--------------------------------------------------------------
|
808 |
*
|
809 |
* Tcl_DdeObjCmd --
|
810 |
*
|
811 |
* This procedure is invoked to process the "dde" Tcl command.
|
812 |
* See the user documentation for details on what it does.
|
813 |
*
|
814 |
* Results:
|
815 |
* A standard Tcl result.
|
816 |
*
|
817 |
* Side effects:
|
818 |
* See the user documentation.
|
819 |
*
|
820 |
*--------------------------------------------------------------
|
821 |
*/
|
822 |
|
823 |
int
|
824 |
Tcl_DdeObjCmd(
|
825 |
ClientData clientData, /* Used only for deletion */
|
826 |
Tcl_Interp *interp, /* The interp we are sending from */
|
827 |
int objc, /* Number of arguments */
|
828 |
Tcl_Obj *CONST objv[]) /* The arguments */
|
829 |
{
|
830 |
enum {
|
831 |
DDE_SERVERNAME,
|
832 |
DDE_EXECUTE,
|
833 |
DDE_POKE,
|
834 |
DDE_REQUEST,
|
835 |
DDE_SERVICES,
|
836 |
DDE_EVAL
|
837 |
};
|
838 |
|
839 |
static char *ddeCommands[] = {"servername", "execute", "poke",
|
840 |
"request", "services", "eval",
|
841 |
(char *) NULL};
|
842 |
static char *ddeOptions[] = {"-async", (char *) NULL};
|
843 |
int index, argIndex;
|
844 |
int async = 0;
|
845 |
int result = TCL_OK;
|
846 |
HSZ ddeService = NULL;
|
847 |
HSZ ddeTopic = NULL;
|
848 |
HSZ ddeItem = NULL;
|
849 |
HDDEDATA ddeData = NULL;
|
850 |
HDDEDATA ddeItemData = NULL;
|
851 |
HCONV hConv = NULL;
|
852 |
HSZ ddeCookie = 0;
|
853 |
char *serviceName, *topicName, *itemString, *dataString;
|
854 |
char *string;
|
855 |
int firstArg, length, dataLength;
|
856 |
DWORD ddeResult;
|
857 |
HDDEDATA ddeReturn;
|
858 |
RegisteredInterp *riPtr;
|
859 |
Tcl_Interp *sendInterp;
|
860 |
Tcl_Obj *objPtr;
|
861 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
862 |
|
863 |
/*
|
864 |
* Initialize DDE server/client
|
865 |
*/
|
866 |
|
867 |
if (objc < 2) {
|
868 |
Tcl_WrongNumArgs(interp, 1, objv,
|
869 |
"?-async? serviceName topicName value");
|
870 |
return TCL_ERROR;
|
871 |
}
|
872 |
|
873 |
if (Tcl_GetIndexFromObj(interp, objv[1], ddeCommands, "command", 0,
|
874 |
&index) != TCL_OK) {
|
875 |
return TCL_ERROR;
|
876 |
}
|
877 |
|
878 |
switch (index) {
|
879 |
case DDE_SERVERNAME:
|
880 |
if ((objc != 3) && (objc != 2)) {
|
881 |
Tcl_WrongNumArgs(interp, 1, objv,
|
882 |
"servername ?serverName?");
|
883 |
return TCL_ERROR;
|
884 |
}
|
885 |
firstArg = (objc - 1);
|
886 |
break;
|
887 |
case DDE_EXECUTE:
|
888 |
if ((objc < 5) || (objc > 6)) {
|
889 |
Tcl_WrongNumArgs(interp, 1, objv,
|
890 |
"execute ?-async? serviceName topicName value");
|
891 |
return TCL_ERROR;
|
892 |
}
|
893 |
if (Tcl_GetIndexFromObj(NULL, objv[2], ddeOptions, "option", 0,
|
894 |
&argIndex) != TCL_OK) {
|
895 |
if (objc != 5) {
|
896 |
Tcl_WrongNumArgs(interp, 1, objv,
|
897 |
"execute ?-async? serviceName topicName value");
|
898 |
return TCL_ERROR;
|
899 |
}
|
900 |
async = 0;
|
901 |
firstArg = 2;
|
902 |
} else {
|
903 |
if (objc != 6) {
|
904 |
Tcl_WrongNumArgs(interp, 1, objv,
|
905 |
"execute ?-async? serviceName topicName value");
|
906 |
return TCL_ERROR;
|
907 |
}
|
908 |
async = 1;
|
909 |
firstArg = 3;
|
910 |
}
|
911 |
break;
|
912 |
case DDE_POKE:
|
913 |
if (objc != 6) {
|
914 |
Tcl_WrongNumArgs(interp, 1, objv,
|
915 |
"poke serviceName topicName item value");
|
916 |
return TCL_ERROR;
|
917 |
}
|
918 |
firstArg = 2;
|
919 |
break;
|
920 |
case DDE_REQUEST:
|
921 |
if (objc != 5) {
|
922 |
Tcl_WrongNumArgs(interp, 1, objv,
|
923 |
"request serviceName topicName value");
|
924 |
return TCL_ERROR;
|
925 |
}
|
926 |
firstArg = 2;
|
927 |
break;
|
928 |
case DDE_SERVICES:
|
929 |
if (objc != 4) {
|
930 |
Tcl_WrongNumArgs(interp, 1, objv,
|
931 |
"services serviceName topicName");
|
932 |
return TCL_ERROR;
|
933 |
}
|
934 |
firstArg = 2;
|
935 |
break;
|
936 |
case DDE_EVAL:
|
937 |
if (objc < 4) {
|
938 |
Tcl_WrongNumArgs(interp, 1, objv,
|
939 |
"eval ?-async? serviceName args");
|
940 |
return TCL_ERROR;
|
941 |
}
|
942 |
if (Tcl_GetIndexFromObj(NULL, objv[2], ddeOptions, "option", 0,
|
943 |
&argIndex) != TCL_OK) {
|
944 |
if (objc < 4) {
|
945 |
Tcl_WrongNumArgs(interp, 1, objv,
|
946 |
"eval ?-async? serviceName args");
|
947 |
return TCL_ERROR;
|
948 |
}
|
949 |
async = 0;
|
950 |
firstArg = 2;
|
951 |
} else {
|
952 |
if (objc < 5) {
|
953 |
Tcl_WrongNumArgs(interp, 1, objv,
|
954 |
"eval ?-async? serviceName args");
|
955 |
return TCL_ERROR;
|
956 |
}
|
957 |
async = 1;
|
958 |
firstArg = 3;
|
959 |
}
|
960 |
break;
|
961 |
}
|
962 |
|
963 |
Initialize();
|
964 |
|
965 |
if (firstArg != 1) {
|
966 |
serviceName = Tcl_GetStringFromObj(objv[firstArg], &length);
|
967 |
} else {
|
968 |
length = 0;
|
969 |
}
|
970 |
|
971 |
if (length == 0) {
|
972 |
serviceName = NULL;
|
973 |
} else if ((index != DDE_SERVERNAME) && (index != DDE_EVAL)) {
|
974 |
ddeService = DdeCreateStringHandle(ddeInstance, serviceName,
|
975 |
CP_WINANSI);
|
976 |
}
|
977 |
|
978 |
if ((index != DDE_SERVERNAME) &&(index != DDE_EVAL)) {
|
979 |
topicName = Tcl_GetStringFromObj(objv[firstArg + 1], &length);
|
980 |
if (length == 0) {
|
981 |
topicName = NULL;
|
982 |
} else {
|
983 |
ddeTopic = DdeCreateStringHandle(ddeInstance,
|
984 |
topicName, CP_WINANSI);
|
985 |
}
|
986 |
}
|
987 |
|
988 |
switch (index) {
|
989 |
case DDE_SERVERNAME: {
|
990 |
serviceName = DdeSetServerName(interp, serviceName);
|
991 |
if (serviceName != NULL) {
|
992 |
Tcl_SetStringObj(Tcl_GetObjResult(interp),
|
993 |
serviceName, -1);
|
994 |
} else {
|
995 |
Tcl_ResetResult(interp);
|
996 |
}
|
997 |
break;
|
998 |
}
|
999 |
case DDE_EXECUTE: {
|
1000 |
dataString = Tcl_GetStringFromObj(objv[firstArg + 2], &dataLength);
|
1001 |
if (dataLength == 0) {
|
1002 |
Tcl_SetStringObj(Tcl_GetObjResult(interp),
|
1003 |
"cannot execute null data", -1);
|
1004 |
result = TCL_ERROR;
|
1005 |
break;
|
1006 |
}
|
1007 |
hConv = DdeConnect(ddeInstance, ddeService, ddeTopic,
|
1008 |
NULL);
|
1009 |
DdeFreeStringHandle (ddeInstance, ddeService) ;
|
1010 |
DdeFreeStringHandle (ddeInstance, ddeTopic) ;
|
1011 |
|
1012 |
if (hConv == NULL) {
|
1013 |
SetDdeError(interp);
|
1014 |
result = TCL_ERROR;
|
1015 |
break;
|
1016 |
}
|
1017 |
|
1018 |
ddeData = DdeCreateDataHandle(ddeInstance, dataString,
|
1019 |
dataLength+1, 0, 0, CF_TEXT, 0);
|
1020 |
if (ddeData != NULL) {
|
1021 |
if (async) {
|
1022 |
DdeClientTransaction((LPBYTE) ddeData, 0xFFFFFFFF, hConv, 0,
|
1023 |
CF_TEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult);
|
1024 |
DdeAbandonTransaction(ddeInstance, hConv,
|
1025 |
ddeResult);
|
1026 |
} else {
|
1027 |
ddeReturn = DdeClientTransaction((LPBYTE) ddeData, 0xFFFFFFFF,
|
1028 |
hConv, 0, CF_TEXT, XTYP_EXECUTE, 30000, NULL);
|
1029 |
if (ddeReturn == 0) {
|
1030 |
SetDdeError(interp);
|
1031 |
result = TCL_ERROR;
|
1032 |
}
|
1033 |
}
|
1034 |
DdeFreeDataHandle(ddeData);
|
1035 |
} else {
|
1036 |
SetDdeError(interp);
|
1037 |
result = TCL_ERROR;
|
1038 |
}
|
1039 |
break;
|
1040 |
}
|
1041 |
case DDE_REQUEST: {
|
1042 |
itemString = Tcl_GetStringFromObj(objv[firstArg + 2], &length);
|
1043 |
if (length == 0) {
|
1044 |
Tcl_SetStringObj(Tcl_GetObjResult(interp),
|
1045 |
"cannot request value of null data", -1);
|
1046 |
return TCL_ERROR;
|
1047 |
}
|
1048 |
hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL);
|
1049 |
DdeFreeStringHandle (ddeInstance, ddeService) ;
|
1050 |
DdeFreeStringHandle (ddeInstance, ddeTopic) ;
|
1051 |
|
1052 |
if (hConv == NULL) {
|
1053 |
SetDdeError(interp);
|
1054 |
result = TCL_ERROR;
|
1055 |
} else {
|
1056 |
Tcl_Obj *returnObjPtr;
|
1057 |
ddeItem = DdeCreateStringHandle(ddeInstance,
|
1058 |
itemString, CP_WINANSI);
|
1059 |
if (ddeItem != NULL) {
|
1060 |
ddeData = DdeClientTransaction(NULL, 0, hConv, ddeItem,
|
1061 |
CF_TEXT, XTYP_REQUEST, 5000, NULL);
|
1062 |
if (ddeData == NULL) {
|
1063 |
SetDdeError(interp);
|
1064 |
result = TCL_ERROR;
|
1065 |
} else {
|
1066 |
dataString = DdeAccessData(ddeData, &dataLength);
|
1067 |
returnObjPtr = Tcl_NewStringObj(dataString, -1);
|
1068 |
DdeUnaccessData(ddeData);
|
1069 |
DdeFreeDataHandle(ddeData);
|
1070 |
Tcl_SetObjResult(interp, returnObjPtr);
|
1071 |
}
|
1072 |
} else {
|
1073 |
SetDdeError(interp);
|
1074 |
result = TCL_ERROR;
|
1075 |
}
|
1076 |
}
|
1077 |
|
1078 |
break;
|
1079 |
}
|
1080 |
case DDE_POKE: {
|
1081 |
itemString = Tcl_GetStringFromObj(objv[firstArg + 2], &length);
|
1082 |
if (length == 0) {
|
1083 |
Tcl_SetStringObj(Tcl_GetObjResult(interp),
|
1084 |
"cannot have a null item", -1);
|
1085 |
return TCL_ERROR;
|
1086 |
}
|
1087 |
dataString = Tcl_GetStringFromObj(objv[firstArg + 3], &length);
|
1088 |
|
1089 |
hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL);
|
1090 |
DdeFreeStringHandle (ddeInstance,ddeService) ;
|
1091 |
DdeFreeStringHandle (ddeInstance, ddeTopic) ;
|
1092 |
|
1093 |
if (hConv == NULL) {
|
1094 |
SetDdeError(interp);
|
1095 |
result = TCL_ERROR;
|
1096 |
} else {
|
1097 |
ddeItem = DdeCreateStringHandle(ddeInstance, itemString, \
|
1098 |
CP_WINANSI);
|
1099 |
if (ddeItem != NULL) {
|
1100 |
ddeData = DdeClientTransaction(dataString,length+1, \
|
1101 |
hConv, ddeItem,
|
1102 |
CF_TEXT, XTYP_POKE, 5000, NULL);
|
1103 |
if (ddeData == NULL) {
|
1104 |
SetDdeError(interp);
|
1105 |
result = TCL_ERROR;
|
1106 |
}
|
1107 |
} else {
|
1108 |
SetDdeError(interp);
|
1109 |
result = TCL_ERROR;
|
1110 |
}
|
1111 |
}
|
1112 |
break;
|
1113 |
}
|
1114 |
|
1115 |
case DDE_SERVICES: {
|
1116 |
HCONVLIST hConvList;
|
1117 |
CONVINFO convInfo;
|
1118 |
Tcl_Obj *convListObjPtr, *elementObjPtr;
|
1119 |
Tcl_DString dString;
|
1120 |
char *name;
|
1121 |
|
1122 |
convInfo.cb = sizeof(CONVINFO);
|
1123 |
hConvList = DdeConnectList(ddeInstance, ddeService,
|
1124 |
ddeTopic, 0, NULL);
|
1125 |
DdeFreeStringHandle (ddeInstance,ddeService) ;
|
1126 |
DdeFreeStringHandle (ddeInstance, ddeTopic) ;
|
1127 |
hConv = 0;
|
1128 |
convListObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
|
1129 |
Tcl_DStringInit(&dString);
|
1130 |
|
1131 |
while (hConv = DdeQueryNextServer(hConvList, hConv), hConv != 0) {
|
1132 |
elementObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
|
1133 |
DdeQueryConvInfo(hConv, QID_SYNC, &convInfo);
|
1134 |
length = DdeQueryString(ddeInstance,
|
1135 |
convInfo.hszSvcPartner, NULL, 0, CP_WINANSI);
|
1136 |
Tcl_DStringSetLength(&dString, length);
|
1137 |
name = Tcl_DStringValue(&dString);
|
1138 |
DdeQueryString(ddeInstance, convInfo.hszSvcPartner,
|
1139 |
name, length + 1, CP_WINANSI);
|
1140 |
Tcl_ListObjAppendElement(interp, elementObjPtr,
|
1141 |
Tcl_NewStringObj(name, length));
|
1142 |
length = DdeQueryString(ddeInstance, convInfo.hszTopic,
|
1143 |
NULL, 0, CP_WINANSI);
|
1144 |
Tcl_DStringSetLength(&dString, length);
|
1145 |
name = Tcl_DStringValue(&dString);
|
1146 |
DdeQueryString(ddeInstance, convInfo.hszTopic, name,
|
1147 |
length + 1, CP_WINANSI);
|
1148 |
Tcl_ListObjAppendElement(interp, elementObjPtr,
|
1149 |
Tcl_NewStringObj(name, length));
|
1150 |
Tcl_ListObjAppendElement(interp, convListObjPtr, elementObjPtr);
|
1151 |
}
|
1152 |
DdeDisconnectList(hConvList);
|
1153 |
Tcl_SetObjResult(interp, convListObjPtr);
|
1154 |
Tcl_DStringFree(&dString);
|
1155 |
break;
|
1156 |
}
|
1157 |
case DDE_EVAL: {
|
1158 |
objc -= (async + 3);
|
1159 |
((Tcl_Obj **) objv) += (async + 3);
|
1160 |
|
1161 |
/*
|
1162 |
* See if the target interpreter is local. If so, execute
|
1163 |
* the command directly without going through the DDE server.
|
1164 |
* Don't exchange objects between interps. The target interp could
|
1165 |
* compile an object, producing a bytecode structure that refers to
|
1166 |
* other objects owned by the target interp. If the target interp
|
1167 |
* is then deleted, the bytecode structure would be referring to
|
1168 |
* deallocated objects.
|
1169 |
*/
|
1170 |
|
1171 |
for (riPtr = tsdPtr->interpListPtr; riPtr != NULL; riPtr
|
1172 |
= riPtr->nextPtr) {
|
1173 |
if (stricmp(serviceName, riPtr->name) == 0) {
|
1174 |
break;
|
1175 |
}
|
1176 |
}
|
1177 |
|
1178 |
if (riPtr != NULL) {
|
1179 |
/*
|
1180 |
* This command is to a local interp. No need to go through
|
1181 |
* the server.
|
1182 |
*/
|
1183 |
|
1184 |
Tcl_Preserve((ClientData) riPtr);
|
1185 |
sendInterp = riPtr->interp;
|
1186 |
Tcl_Preserve((ClientData) sendInterp);
|
1187 |
|
1188 |
/*
|
1189 |
* Don't exchange objects between interps. The target interp would
|
1190 |
* compile an object, producing a bytecode structure that refers to
|
1191 |
* other objects owned by the target interp. If the target interp
|
1192 |
* is then deleted, the bytecode structure would be referring to
|
1193 |
* deallocated objects.
|
1194 |
*/
|
1195 |
|
1196 |
if (objc == 1) {
|
1197 |
result = Tcl_EvalObjEx(sendInterp, objv[0], TCL_EVAL_GLOBAL);
|
1198 |
} else {
|
1199 |
objPtr = Tcl_ConcatObj(objc, objv);
|
1200 |
Tcl_IncrRefCount(objPtr);
|
1201 |
result = Tcl_EvalObjEx(sendInterp, objPtr, TCL_EVAL_GLOBAL);
|
1202 |
Tcl_DecrRefCount(objPtr);
|
1203 |
}
|
1204 |
if (interp != sendInterp) {
|
1205 |
if (result == TCL_ERROR) {
|
1206 |
/*
|
1207 |
* An error occurred, so transfer error information from the
|
1208 |
* destination interpreter back to our interpreter.
|
1209 |
*/
|
1210 |
|
1211 |
Tcl_ResetResult(interp);
|
1212 |
objPtr = Tcl_GetVar2Ex(sendInterp, "errorInfo", NULL,
|
1213 |
TCL_GLOBAL_ONLY);
|
1214 |
string = Tcl_GetStringFromObj(objPtr, &length);
|
1215 |
Tcl_AddObjErrorInfo(interp, string, length);
|
1216 |
|
1217 |
objPtr = Tcl_GetVar2Ex(sendInterp, "errorCode", NULL,
|
1218 |
TCL_GLOBAL_ONLY);
|
1219 |
Tcl_SetObjErrorCode(interp, objPtr);
|
1220 |
}
|
1221 |
Tcl_SetObjResult(interp, Tcl_GetObjResult(sendInterp));
|
1222 |
}
|
1223 |
Tcl_Release((ClientData) riPtr);
|
1224 |
Tcl_Release((ClientData) sendInterp);
|
1225 |
} else {
|
1226 |
/*
|
1227 |
* This is a non-local request. Send the script to the server and poll
|
1228 |
* it for a result.
|
1229 |
*/
|
1230 |
|
1231 |
if (MakeDdeConnection(interp, serviceName, &hConv) != TCL_OK) {
|
1232 |
goto error;
|
1233 |
}
|
1234 |
|
1235 |
objPtr = Tcl_ConcatObj(objc, objv);
|
1236 |
string = Tcl_GetStringFromObj(objPtr, &length);
|
1237 |
ddeItemData = DdeCreateDataHandle(ddeInstance, string, length+1, 0, 0,
|
1238 |
CF_TEXT, 0);
|
1239 |
|
1240 |
if (async) {
|
1241 |
ddeData = DdeClientTransaction((LPBYTE) ddeItemData, 0xFFFFFFFF, hConv, 0,
|
1242 |
CF_TEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult);
|
1243 |
DdeAbandonTransaction(ddeInstance, hConv, ddeResult);
|
1244 |
} else {
|
1245 |
ddeData = DdeClientTransaction((LPBYTE) ddeItemData, 0xFFFFFFFF, hConv, 0,
|
1246 |
CF_TEXT, XTYP_EXECUTE, 30000, NULL);
|
1247 |
if (ddeData != 0) {
|
1248 |
|
1249 |
ddeCookie = DdeCreateStringHandle(ddeInstance,
|
1250 |
"$TCLEVAL$EXECUTE$RESULT", CP_WINANSI);
|
1251 |
ddeData = DdeClientTransaction(NULL, 0, hConv, ddeCookie,
|
1252 |
CF_TEXT, XTYP_REQUEST, 30000, NULL);
|
1253 |
}
|
1254 |
}
|
1255 |
|
1256 |
|
1257 |
Tcl_DecrRefCount(objPtr);
|
1258 |
|
1259 |
if (ddeData == 0) {
|
1260 |
SetDdeError(interp);
|
1261 |
goto errorNoResult;
|
1262 |
}
|
1263 |
|
1264 |
if (async == 0) {
|
1265 |
Tcl_Obj *resultPtr;
|
1266 |
|
1267 |
/*
|
1268 |
* The return handle has a two or four element list in it. The first
|
1269 |
* element is the return code (TCL_OK, TCL_ERROR, etc.). The
|
1270 |
* second is the result of the script. If the return code is TCL_ERROR,
|
1271 |
* then the third element is the value of the variable "errorCode",
|
1272 |
* and the fourth is the value of the variable "errorInfo".
|
1273 |
*/
|
1274 |
|
1275 |
resultPtr = Tcl_NewObj();
|
1276 |
length = DdeGetData(ddeData, NULL, 0, 0);
|
1277 |
Tcl_SetObjLength(resultPtr, length);
|
1278 |
string = Tcl_GetString(resultPtr);
|
1279 |
DdeGetData(ddeData, string, length, 0);
|
1280 |
Tcl_SetObjLength(resultPtr, strlen(string));
|
1281 |
|
1282 |
if (Tcl_ListObjIndex(NULL, resultPtr, 0, &objPtr) != TCL_OK) {
|
1283 |
Tcl_DecrRefCount(resultPtr);
|
1284 |
goto error;
|
1285 |
}
|
1286 |
if (Tcl_GetIntFromObj(NULL, objPtr, &result) != TCL_OK) {
|
1287 |
Tcl_DecrRefCount(resultPtr);
|
1288 |
goto error;
|
1289 |
}
|
1290 |
if (result == TCL_ERROR) {
|
1291 |
Tcl_ResetResult(interp);
|
1292 |
|
1293 |
if (Tcl_ListObjIndex(NULL, resultPtr, 3, &objPtr) != TCL_OK) {
|
1294 |
Tcl_DecrRefCount(resultPtr);
|
1295 |
goto error;
|
1296 |
}
|
1297 |
length = -1;
|
1298 |
string = Tcl_GetStringFromObj(objPtr, &length);
|
1299 |
Tcl_AddObjErrorInfo(interp, string, length);
|
1300 |
|
1301 |
Tcl_ListObjIndex(NULL, resultPtr, 2, &objPtr);
|
1302 |
Tcl_SetObjErrorCode(interp, objPtr);
|
1303 |
}
|
1304 |
if (Tcl_ListObjIndex(NULL, resultPtr, 1, &objPtr) != TCL_OK) {
|
1305 |
Tcl_DecrRefCount(resultPtr);
|
1306 |
goto error;
|
1307 |
}
|
1308 |
Tcl_SetObjResult(interp, objPtr);
|
1309 |
Tcl_DecrRefCount(resultPtr);
|
1310 |
}
|
1311 |
}
|
1312 |
}
|
1313 |
}
|
1314 |
if (ddeCookie != NULL) {
|
1315 |
DdeFreeStringHandle(ddeInstance, ddeCookie);
|
1316 |
}
|
1317 |
if (ddeItem != NULL) {
|
1318 |
DdeFreeStringHandle(ddeInstance, ddeItem);
|
1319 |
}
|
1320 |
if (ddeItemData != NULL) {
|
1321 |
DdeFreeDataHandle(ddeItemData);
|
1322 |
}
|
1323 |
if (ddeData != NULL) {
|
1324 |
DdeFreeDataHandle(ddeData);
|
1325 |
}
|
1326 |
if (hConv != NULL) {
|
1327 |
DdeDisconnect(hConv);
|
1328 |
}
|
1329 |
return result;
|
1330 |
|
1331 |
error:
|
1332 |
Tcl_SetStringObj(Tcl_GetObjResult(interp),
|
1333 |
"invalid data returned from server", -1);
|
1334 |
|
1335 |
errorNoResult:
|
1336 |
if (ddeCookie != NULL) {
|
1337 |
DdeFreeStringHandle(ddeInstance, ddeCookie);
|
1338 |
}
|
1339 |
if (ddeItem != NULL) {
|
1340 |
DdeFreeStringHandle(ddeInstance, ddeItem);
|
1341 |
}
|
1342 |
if (ddeItemData != NULL) {
|
1343 |
DdeFreeDataHandle(ddeItemData);
|
1344 |
}
|
1345 |
if (ddeData != NULL) {
|
1346 |
DdeFreeDataHandle(ddeData);
|
1347 |
}
|
1348 |
if (hConv != NULL) {
|
1349 |
DdeDisconnect(hConv);
|
1350 |
}
|
1351 |
return TCL_ERROR;
|
1352 |
}
|
1353 |
|
1354 |
/* End of tclwindde.c */
|