xpcom/glue/standalone/nsXPCOMGlue.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* vim:set ts=4 sw=4 et cindent: */
   3 /* ***** BEGIN LICENSE BLOCK *****
   4  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5  *
   6  * The contents of this file are subject to the Mozilla Public License Version
   7  * 1.1 (the "License"); you may not use this file except in compliance with
   8  * the License. You may obtain a copy of the License at
   9  * http://www.mozilla.org/MPL/
  10  *
  11  * Software distributed under the License is distributed on an "AS IS" basis,
  12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13  * for the specific language governing rights and limitations under the
  14  * License.
  15  *
  16  * The Original Code is mozilla.org code.
  17  *
  18  * The Initial Developer of the Original Code is
  19  * Netscape Communications Corporation.
  20  * Portions created by the Initial Developer are Copyright (C) 1998
  21  * the Initial Developer. All Rights Reserved.
  22  *
  23  * Contributor(s):
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either of the GNU General Public License Version 2 or later (the "GPL"),
  27  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
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  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #include "nsXPCOMGlue.h"
  40 #include "nsGlueLinking.h"
  41
  42 #include "nspr.h"
  43 #include "nsDebug.h"
  44 #include "nsIServiceManager.h"
  45 #include "nsXPCOMPrivate.h"
  46 #include "nsCOMPtr.h"
  47 #include <stdlib.h>
  48 #include <stdio.h>
  49
  50 #ifdef XP_WIN
  51 #include <windows.h>
  52 #include <mbstring.h>
  53 #include <malloc.h>
  54 #define snprintf _snprintf
  55 #endif
  56
  57 static XPCOMFunctions xpcomFunctions;
  58
  59 extern "C"
  60 nsresult XPCOMGlueStartup(const char* xpcomFile)
  61 {
  62     xpcomFunctions.version = XPCOM_GLUE_VERSION;
  63     xpcomFunctions.size    = sizeof(XPCOMFunctions);
  64
  65     GetFrozenFunctionsFunc func = nsnull;
  66
  67     if (!xpcomFile)
  68         xpcomFile = XPCOM_DLL;
  69
  70
  71     func = XPCOMGlueLoad(xpcomFile);
  72
  73     if (!func)
  74         return NS_ERROR_FAILURE;
  75
  76     nsresult rv = (*func)(&xpcomFunctions, nsnull);
  77     if (NS_FAILED(rv)) {
  78         XPCOMGlueUnload();
  79         return rv;
  80     }
  81
  82     return NS_OK;
  83 }
  84
  85 #if defined(XP_WIN) || defined(XP_OS2)
  86 #define READ_TEXTMODE "t"
  87 #else
  88 #define READ_TEXTMODE
  89 #endif
  90
  91 void
  92 XPCOMGlueLoadDependentLibs(const char *xpcomDir, DependentLibsCallback cb)
  93 {
  94     char buffer[MAXPATHLEN];
  95     sprintf(buffer, "%s" XPCOM_FILE_PATH_SEPARATOR XPCOM_DEPENDENT_LIBS_LIST,
  96             xpcomDir);
  97
  98     FILE *flist = fopen(buffer, "r" READ_TEXTMODE);
  99     if (!flist)
 100         return;
 101
 102     while (fgets(buffer, sizeof(buffer), flist)) {
 103         int l = strlen(buffer);
 104
 105         // ignore empty lines and comments
 106         if (l == 0 || *buffer == '#')
 107             continue;
 108
 109         // cut the trailing newline, if present
 110         if (buffer[l - 1] == '\n')
 111             buffer[l - 1] = '\0';
 112
 113         char buffer2[MAXPATHLEN];
 114         snprintf(buffer2, sizeof(buffer2),
 115                  "%s" XPCOM_FILE_PATH_SEPARATOR "%s",
 116                  xpcomDir, buffer);
 117         cb(buffer2);
 118     }
 119
 120     fclose(flist);
 121 }
 122
 123 extern "C"
 124 nsresult XPCOMGlueShutdown()
 125 {
 126     XPCOMGlueUnload();
 127
 128     memset(&xpcomFunctions, 0, sizeof(xpcomFunctions));
 129     return NS_OK;
 130 }
 131
 132 XPCOM_API(nsresult)
 133 NS_InitXPCOM2(nsIServiceManager* *result,
 134               nsIFile* binDirectory,
 135               nsIDirectoryServiceProvider* appFileLocationProvider)
 136 {
 137     if (!xpcomFunctions.init)
 138         return NS_ERROR_NOT_INITIALIZED;
 139     return xpcomFunctions.init(result, binDirectory, appFileLocationProvider);
 140 }
 141
 142 XPCOM_API(nsresult)
 143 NS_InitXPCOM3(nsIServiceManager* *result,
 144               nsIFile* binDirectory,
 145               nsIDirectoryServiceProvider* appFileLocationProvider,
 146               nsStaticModuleInfo const *staticComponents,
 147               PRUint32 componentCount)
 148 {
 149     if (!xpcomFunctions.init3)
 150         return NS_ERROR_NOT_INITIALIZED;
 151     return xpcomFunctions.init3(result, binDirectory, appFileLocationProvider,
 152                                 staticComponents, componentCount);
 153 }
 154
 155 XPCOM_API(nsresult)
 156 NS_ShutdownXPCOM(nsIServiceManager* servMgr)
 157 {
 158     if (!xpcomFunctions.shutdown)
 159         return NS_ERROR_NOT_INITIALIZED;
 160     return xpcomFunctions.shutdown(servMgr);
 161 }
 162
 163 XPCOM_API(nsresult)
 164 NS_GetServiceManager(nsIServiceManager* *result)
 165 {
 166     if (!xpcomFunctions.getServiceManager)
 167         return NS_ERROR_NOT_INITIALIZED;
 168     return xpcomFunctions.getServiceManager(result);
 169 }
 170
 171 XPCOM_API(nsresult)
 172 NS_GetComponentManager(nsIComponentManager* *result)
 173 {
 174     if (!xpcomFunctions.getComponentManager)
 175         return NS_ERROR_NOT_INITIALIZED;
 176     return xpcomFunctions.getComponentManager(result);
 177 }
 178
 179 XPCOM_API(nsresult)
 180 NS_GetComponentRegistrar(nsIComponentRegistrar* *result)
 181 {
 182     if (!xpcomFunctions.getComponentRegistrar)
 183         return NS_ERROR_NOT_INITIALIZED;
 184     return xpcomFunctions.getComponentRegistrar(result);
 185 }
 186
 187 XPCOM_API(nsresult)
 188 NS_GetMemoryManager(nsIMemory* *result)
 189 {
 190     if (!xpcomFunctions.getMemoryManager)
 191         return NS_ERROR_NOT_INITIALIZED;
 192     return xpcomFunctions.getMemoryManager(result);
 193 }
 194
 195 XPCOM_API(nsresult)
 196 NS_NewLocalFile(const nsAString &path, PRBool followLinks, nsILocalFile* *result)
 197 {
 198     if (!xpcomFunctions.newLocalFile)
 199         return NS_ERROR_NOT_INITIALIZED;
 200     return xpcomFunctions.newLocalFile(path, followLinks, result);
 201 }
 202
 203 XPCOM_API(nsresult)
 204 NS_NewNativeLocalFile(const nsACString &path, PRBool followLinks, nsILocalFile* *result)
 205 {
 206     if (!xpcomFunctions.newNativeLocalFile)
 207         return NS_ERROR_NOT_INITIALIZED;
 208     return xpcomFunctions.newNativeLocalFile(path, followLinks, result);
 209 }
 210
 211 XPCOM_API(nsresult)
 212 NS_GetDebug(nsIDebug* *result)
 213 {
 214     if (!xpcomFunctions.getDebug)
 215         return NS_ERROR_NOT_INITIALIZED;
 216     return xpcomFunctions.getDebug(result);
 217 }
 218
 219
 220 XPCOM_API(nsresult)
 221 NS_GetTraceRefcnt(nsITraceRefcnt* *result)
 222 {
 223     if (!xpcomFunctions.getTraceRefcnt)
 224         return NS_ERROR_NOT_INITIALIZED;
 225     return xpcomFunctions.getTraceRefcnt(result);
 226 }
 227
 228
 229 XPCOM_API(nsresult)
 230 NS_StringContainerInit(nsStringContainer &aStr)
 231 {
 232     if (!xpcomFunctions.stringContainerInit)
 233         return NS_ERROR_NOT_INITIALIZED;
 234     return xpcomFunctions.stringContainerInit(aStr);
 235 }
 236
 237 XPCOM_API(nsresult)
 238 NS_StringContainerInit2(nsStringContainer &aStr,
 239                         const PRUnichar   *aData,
 240                         PRUint32           aDataLength,
 241                         PRUint32           aFlags)
 242 {
 243     if (!xpcomFunctions.stringContainerInit2)
 244         return NS_ERROR_NOT_INITIALIZED;
 245     return xpcomFunctions.stringContainerInit2(aStr, aData, aDataLength, aFlags);
 246 }
 247
 248 XPCOM_API(void)
 249 NS_StringContainerFinish(nsStringContainer &aStr)
 250 {
 251     if (xpcomFunctions.stringContainerFinish)
 252         xpcomFunctions.stringContainerFinish(aStr);
 253 }
 254
 255 XPCOM_API(PRUint32)
 256 NS_StringGetData(const nsAString &aStr, const PRUnichar **aBuf, PRBool *aTerm)
 257 {
 258     if (!xpcomFunctions.stringGetData) {
 259         *aBuf = nsnull;
 260         return 0;
 261     }
 262     return xpcomFunctions.stringGetData(aStr, aBuf, aTerm);
 263 }
 264
 265 XPCOM_API(PRUint32)
 266 NS_StringGetMutableData(nsAString &aStr, PRUint32 aLen, PRUnichar **aBuf)
 267 {
 268     if (!xpcomFunctions.stringGetMutableData) {
 269         *aBuf = nsnull;
 270         return 0;
 271     }
 272     return xpcomFunctions.stringGetMutableData(aStr, aLen, aBuf);
 273 }
 274
 275 XPCOM_API(PRUnichar*)
 276 NS_StringCloneData(const nsAString &aStr)
 277 {
 278     if (!xpcomFunctions.stringCloneData)
 279         return nsnull;
 280     return xpcomFunctions.stringCloneData(aStr);
 281 }
 282
 283 XPCOM_API(nsresult)
 284 NS_StringSetData(nsAString &aStr, const PRUnichar *aBuf, PRUint32 aCount)
 285 {
 286     if (!xpcomFunctions.stringSetData)
 287         return NS_ERROR_NOT_INITIALIZED;
 288
 289     return xpcomFunctions.stringSetData(aStr, aBuf, aCount);
 290 }
 291
 292 XPCOM_API(nsresult)
 293 NS_StringSetDataRange(nsAString &aStr, PRUint32 aCutStart, PRUint32 aCutLength,
 294                       const PRUnichar *aBuf, PRUint32 aCount)
 295 {
 296     if (!xpcomFunctions.stringSetDataRange)
 297         return NS_ERROR_NOT_INITIALIZED;
 298     return xpcomFunctions.stringSetDataRange(aStr, aCutStart, aCutLength, aBuf, aCount);
 299 }
 300
 301 XPCOM_API(nsresult)
 302 NS_StringCopy(nsAString &aDest, const nsAString &aSrc)
 303 {
 304     if (!xpcomFunctions.stringCopy)
 305         return NS_ERROR_NOT_INITIALIZED;
 306     return xpcomFunctions.stringCopy(aDest, aSrc);
 307 }
 308
 309 XPCOM_API(void)
 310 NS_StringSetIsVoid(nsAString &aStr, const PRBool aIsVoid)
 311 {
 312     if (xpcomFunctions.stringSetIsVoid)
 313         xpcomFunctions.stringSetIsVoid(aStr, aIsVoid);
 314 }
 315
 316 XPCOM_API(PRBool)
 317 NS_StringGetIsVoid(const nsAString &aStr)
 318 {
 319     if (!xpcomFunctions.stringGetIsVoid)
 320         return PR_FALSE;
 321     return xpcomFunctions.stringGetIsVoid(aStr);
 322 }
 323
 324 XPCOM_API(nsresult)
 325 NS_CStringContainerInit(nsCStringContainer &aStr)
 326 {
 327     if (!xpcomFunctions.cstringContainerInit)
 328         return NS_ERROR_NOT_INITIALIZED;
 329     return xpcomFunctions.cstringContainerInit(aStr);
 330 }
 331
 332 XPCOM_API(nsresult)
 333 NS_CStringContainerInit2(nsCStringContainer &aStr,
 334                          const char         *aData,
 335                          PRUint32           aDataLength,
 336                          PRUint32           aFlags)
 337 {
 338     if (!xpcomFunctions.cstringContainerInit2)
 339         return NS_ERROR_NOT_INITIALIZED;
 340     return xpcomFunctions.cstringContainerInit2(aStr, aData, aDataLength, aFlags);
 341 }
 342
 343 XPCOM_API(void)
 344 NS_CStringContainerFinish(nsCStringContainer &aStr)
 345 {
 346     if (xpcomFunctions.cstringContainerFinish)
 347         xpcomFunctions.cstringContainerFinish(aStr);
 348 }
 349
 350 XPCOM_API(PRUint32)
 351 NS_CStringGetData(const nsACString &aStr, const char **aBuf, PRBool *aTerm)
 352 {
 353     if (!xpcomFunctions.cstringGetData) {
 354         *aBuf = nsnull;
 355         return 0;
 356     }
 357     return xpcomFunctions.cstringGetData(aStr, aBuf, aTerm);
 358 }
 359
 360 XPCOM_API(PRUint32)
 361 NS_CStringGetMutableData(nsACString &aStr, PRUint32 aLen, char **aBuf)
 362 {
 363     if (!xpcomFunctions.cstringGetMutableData) {
 364         *aBuf = nsnull;
 365         return 0;
 366     }
 367     return xpcomFunctions.cstringGetMutableData(aStr, aLen, aBuf);
 368 }
 369
 370 XPCOM_API(char*)
 371 NS_CStringCloneData(const nsACString &aStr)
 372 {
 373     if (!xpcomFunctions.cstringCloneData)
 374         return nsnull;
 375     return xpcomFunctions.cstringCloneData(aStr);
 376 }
 377
 378 XPCOM_API(nsresult)
 379 NS_CStringSetData(nsACString &aStr, const char *aBuf, PRUint32 aCount)
 380 {
 381     if (!xpcomFunctions.cstringSetData)
 382         return NS_ERROR_NOT_INITIALIZED;
 383     return xpcomFunctions.cstringSetData(aStr, aBuf, aCount);
 384 }
 385
 386 XPCOM_API(nsresult)
 387 NS_CStringSetDataRange(nsACString &aStr, PRUint32 aCutStart, PRUint32 aCutLength,
 388                        const char *aBuf, PRUint32 aCount)
 389 {
 390     if (!xpcomFunctions.cstringSetDataRange)
 391         return NS_ERROR_NOT_INITIALIZED;
 392     return xpcomFunctions.cstringSetDataRange(aStr, aCutStart, aCutLength, aBuf, aCount);
 393 }
 394
 395 XPCOM_API(nsresult)
 396 NS_CStringCopy(nsACString &aDest, const nsACString &aSrc)
 397 {
 398     if (!xpcomFunctions.cstringCopy)
 399         return NS_ERROR_NOT_INITIALIZED;
 400     return xpcomFunctions.cstringCopy(aDest, aSrc);
 401 }
 402
 403 XPCOM_API(void)
 404 NS_CStringSetIsVoid(nsACString &aStr, const PRBool aIsVoid)
 405 {
 406     if (xpcomFunctions.cstringSetIsVoid)
 407         xpcomFunctions.cstringSetIsVoid(aStr, aIsVoid);
 408 }
 409
 410 XPCOM_API(PRBool)
 411 NS_CStringGetIsVoid(const nsACString &aStr)
 412 {
 413     if (!xpcomFunctions.cstringGetIsVoid)
 414         return PR_FALSE;
 415     return xpcomFunctions.cstringGetIsVoid(aStr);
 416 }
 417
 418 XPCOM_API(nsresult)
 419 NS_CStringToUTF16(const nsACString &aSrc, nsCStringEncoding aSrcEncoding, nsAString &aDest)
 420 {
 421     if (!xpcomFunctions.cstringToUTF16)
 422         return NS_ERROR_NOT_INITIALIZED;
 423     return xpcomFunctions.cstringToUTF16(aSrc, aSrcEncoding, aDest);
 424 }
 425
 426 XPCOM_API(nsresult)
 427 NS_UTF16ToCString(const nsAString &aSrc, nsCStringEncoding aDestEncoding, nsACString &aDest)
 428 {
 429     if (!xpcomFunctions.utf16ToCString)
 430         return NS_ERROR_NOT_INITIALIZED;
 431     return xpcomFunctions.utf16ToCString(aSrc, aDestEncoding, aDest);
 432 }
 433
 434 XPCOM_API(void*)
 435 NS_Alloc(PRSize size)
 436 {
 437     if (!xpcomFunctions.allocFunc)
 438         return nsnull;
 439     return xpcomFunctions.allocFunc(size);
 440 }
 441
 442 XPCOM_API(void*)
 443 NS_Realloc(void* ptr, PRSize size)
 444 {
 445     if (!xpcomFunctions.reallocFunc)
 446         return nsnull;
 447     return xpcomFunctions.reallocFunc(ptr, size);
 448 }
 449
 450 XPCOM_API(void)
 451 NS_Free(void* ptr)
 452 {
 453     if (xpcomFunctions.freeFunc)
 454         xpcomFunctions.freeFunc(ptr);
 455 }
 456
 457 XPCOM_API(void)
 458 NS_DebugBreak(PRUint32 aSeverity, const char *aStr, const char *aExpr,
 459               const char *aFile, PRInt32 aLine)
 460 {
 461     if (xpcomFunctions.debugBreakFunc)
 462         xpcomFunctions.debugBreakFunc(aSeverity, aStr, aExpr, aFile, aLine);
 463 }
 464
 465 XPCOM_API(void)
 466 NS_LogInit()
 467 {
 468     if (xpcomFunctions.logInitFunc)
 469         xpcomFunctions.logInitFunc();
 470 }
 471
 472 XPCOM_API(void)
 473 NS_LogTerm()
 474 {
 475     if (xpcomFunctions.logTermFunc)
 476         xpcomFunctions.logTermFunc();
 477 }
 478
 479 XPCOM_API(void)
 480 NS_LogAddRef(void *aPtr, nsrefcnt aNewRefCnt,
 481              const char *aTypeName, PRUint32 aInstanceSize)
 482 {
 483     if (xpcomFunctions.logAddRefFunc)
 484         xpcomFunctions.logAddRefFunc(aPtr, aNewRefCnt,
 485                                      aTypeName, aInstanceSize);
 486 }
 487
 488 XPCOM_API(void)
 489 NS_LogRelease(void *aPtr, nsrefcnt aNewRefCnt, const char *aTypeName)
 490 {
 491     if (xpcomFunctions.logReleaseFunc)
 492         xpcomFunctions.logReleaseFunc(aPtr, aNewRefCnt, aTypeName);
 493 }
 494
 495 XPCOM_API(void)
 496 NS_LogCtor(void *aPtr, const char *aTypeName, PRUint32 aInstanceSize)
 497 {
 498     if (xpcomFunctions.logCtorFunc)
 499         xpcomFunctions.logCtorFunc(aPtr, aTypeName, aInstanceSize);
 500 }
 501
 502 XPCOM_API(void)
 503 NS_LogDtor(void *aPtr, const char *aTypeName, PRUint32 aInstanceSize)
 504 {
 505     if (xpcomFunctions.logDtorFunc)
 506         xpcomFunctions.logDtorFunc(aPtr, aTypeName, aInstanceSize);
 507 }
 508
 509 XPCOM_API(void)
 510 NS_LogCOMPtrAddRef(void *aCOMPtr, nsISupports *aObject)
 511 {
 512     if (xpcomFunctions.logCOMPtrAddRefFunc)
 513         xpcomFunctions.logCOMPtrAddRefFunc(aCOMPtr, aObject);
 514 }
 515
 516 XPCOM_API(void)
 517 NS_LogCOMPtrRelease(void *aCOMPtr, nsISupports *aObject)
 518 {
 519     if (xpcomFunctions.logCOMPtrReleaseFunc)
 520         xpcomFunctions.logCOMPtrReleaseFunc(aCOMPtr, aObject);
 521 }
 522
 523 XPCOM_API(nsresult)
 524 NS_GetXPTCallStub(REFNSIID aIID, nsIXPTCProxy* aOuter,
 525                   nsISomeInterface* *aStub)
 526 {
 527     if (!xpcomFunctions.getXPTCallStubFunc)
 528         return NS_ERROR_NOT_INITIALIZED;
 529
 530     return xpcomFunctions.getXPTCallStubFunc(aIID, aOuter, aStub);
 531 }
 532
 533 XPCOM_API(void)
 534 NS_DestroyXPTCallStub(nsISomeInterface* aStub)
 535 {
 536     if (xpcomFunctions.destroyXPTCallStubFunc)
 537         xpcomFunctions.destroyXPTCallStubFunc(aStub);
 538 }
 539
 540 XPCOM_API(nsresult)
 541 NS_InvokeByIndex(nsISupports* that, PRUint32 methodIndex,
 542                  PRUint32 paramCount, nsXPTCVariant* params)
 543 {
 544     if (!xpcomFunctions.invokeByIndexFunc)
 545         return NS_ERROR_NOT_INITIALIZED;
 546
 547     return xpcomFunctions.invokeByIndexFunc(that, methodIndex,
 548                                             paramCount, params);
 549 }
 550
 551 XPCOM_API(PRBool)
 552 NS_CycleCollectorSuspect(nsISupports* obj)
 553 {
 554     if (!xpcomFunctions.cycleSuspectFunc)
 555         return PR_FALSE;
 556
 557     return xpcomFunctions.cycleSuspectFunc(obj);
 558 }
 559
 560 XPCOM_API(PRBool)
 561 NS_CycleCollectorForget(nsISupports* obj)
 562 {
 563     if (!xpcomFunctions.cycleForgetFunc)
 564         return PR_FALSE;
 565
 566     return xpcomFunctions.cycleForgetFunc(obj);
 567 }