diff options
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/glue/standalone/nsXPCOMGlue.cpp')
| -rw-r--r-- | src/libs/xpcom18a4/xpcom/glue/standalone/nsXPCOMGlue.cpp | 524 |
1 files changed, 524 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/glue/standalone/nsXPCOMGlue.cpp b/src/libs/xpcom18a4/xpcom/glue/standalone/nsXPCOMGlue.cpp new file mode 100644 index 00000000..091538fa --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/glue/standalone/nsXPCOMGlue.cpp @@ -0,0 +1,524 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* vim:set ts=4 sw=4 et cindent: */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is mozilla.org code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "nsXPCOMGlue.h" + +#include "nspr.h" +#include "nsMemory.h" +#include "nsGREDirServiceProvider.h" +#include "nsXPCOMPrivate.h" +#include <stdlib.h> +#ifdef VBOX +# include <limits.h> +#endif + +#if XP_WIN32 +#include <windows.h> +#endif + +void GRE_AddGREToEnvironment(); + +// functions provided by nsMemory.cpp and nsDebug.cpp +nsresult GlueStartupMemory(); +void GlueShutdownMemory(); +nsresult GlueStartupDebug(); +void GlueShutdownDebug(); + +static PRLibrary *xpcomLib; +static XPCOMFunctions xpcomFunctions; + +extern "C" +nsresult XPCOMGlueStartup(const char* xpcomFile) +{ +#ifdef XPCOM_GLUE_NO_DYNAMIC_LOADING + return NS_OK; +#else + nsresult rv = NS_OK; + GetFrozenFunctionsFunc function = nsnull; + + xpcomFunctions.version = XPCOM_GLUE_VERSION; + xpcomFunctions.size = sizeof(XPCOMFunctions); + + // + // if xpcomFile == ".", then we assume xpcom is already loaded, and we'll + // use NSPR to find NS_GetFrozenFunctions from the list of already loaded + // libraries. + // + // otherwise, we try to load xpcom and then look for NS_GetFrozenFunctions. + // if xpcomFile == NULL, then we try to load xpcom by name w/o a fully + // qualified path. + // + + if (xpcomFile && (xpcomFile[0] == '.' && xpcomFile[1] == '\0')) { + function = (GetFrozenFunctionsFunc) + PR_FindSymbolAndLibrary("NS_GetFrozenFunctions", &xpcomLib); + if (!function) { + // The symbol was not found, so failover to loading XPCOM_DLL, + // and look for the symbol there. See bug 240986 for details. + xpcomFile = nsnull; + } + else { + char *libPath = PR_GetLibraryFilePathname(XPCOM_DLL, (PRFuncPtr) function); + if (!libPath) + rv = NS_ERROR_FAILURE; + else { + rv = (*function)(&xpcomFunctions, libPath); + PR_Free(libPath); + } + } + } + + if (!function) { + PRLibSpec libSpec; + + libSpec.type = PR_LibSpec_Pathname; + if (!xpcomFile) + libSpec.value.pathname = XPCOM_DLL; + else + libSpec.value.pathname = xpcomFile; + + xpcomLib = PR_LoadLibraryWithFlags(libSpec, PR_LD_LAZY|PR_LD_GLOBAL); +#ifdef RT_OS_DARWIN /* vbox */ + /* works around bundle problem. */ + if (!xpcomLib) { + const char *home = PR_GetEnv("VBOX_XPCOM_HOME"); + if (home) { + char path[PATH_MAX]; + snprintf(path, sizeof(path), "%s/%s", home, libSpec.value.pathname); + libSpec.value.pathname = path; + xpcomLib = PR_LoadLibraryWithFlags(libSpec, PR_LD_LAZY|PR_LD_GLOBAL); + } + } +#endif + if (!xpcomLib) + return NS_ERROR_FAILURE; + + function = (GetFrozenFunctionsFunc) PR_FindSymbol(xpcomLib, "NS_GetFrozenFunctions"); + + if (!function) + rv = NS_ERROR_FAILURE; + else + rv = (*function)(&xpcomFunctions, libSpec.value.pathname); + } + + if (NS_FAILED(rv)) + goto bail; + + rv = GlueStartupDebug(); + if (NS_FAILED(rv)) + goto bail; + + // startup the nsMemory + rv = GlueStartupMemory(); + if (NS_FAILED(rv)) { + GlueShutdownDebug(); + goto bail; + } + + GRE_AddGREToEnvironment(); + return NS_OK; + +bail: + PR_UnloadLibrary(xpcomLib); + xpcomLib = nsnull; + memset(&xpcomFunctions, 0, sizeof(xpcomFunctions)); + return NS_ERROR_FAILURE; +#endif +} + +extern "C" +nsresult XPCOMGlueShutdown() +{ +#ifdef XPCOM_GLUE_NO_DYNAMIC_LOADING + return NS_OK; +#else + + GlueShutdownMemory(); + + GlueShutdownDebug(); + + if (xpcomLib) { + PR_UnloadLibrary(xpcomLib); + xpcomLib = nsnull; + } + + memset(&xpcomFunctions, 0, sizeof(xpcomFunctions)); + return NS_OK; +#endif +} + +#ifndef XPCOM_GLUE_NO_DYNAMIC_LOADING +extern "C" NS_COM nsresult +NS_InitXPCOM2(nsIServiceManager* *result, + nsIFile* binDirectory, + nsIDirectoryServiceProvider* appFileLocationProvider) +{ + if (!xpcomFunctions.init) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.init(result, binDirectory, appFileLocationProvider); +} + +extern "C" NS_COM nsresult +NS_ShutdownXPCOM(nsIServiceManager* servMgr) +{ + if (!xpcomFunctions.shutdown) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.shutdown(servMgr); +} + +extern "C" NS_COM nsresult +NS_GetServiceManager(nsIServiceManager* *result) +{ + if (!xpcomFunctions.getServiceManager) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.getServiceManager(result); +} + +extern "C" NS_COM nsresult +NS_GetComponentManager(nsIComponentManager* *result) +{ + if (!xpcomFunctions.getComponentManager) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.getComponentManager(result); +} + +extern "C" NS_COM nsresult +NS_GetComponentRegistrar(nsIComponentRegistrar* *result) +{ + if (!xpcomFunctions.getComponentRegistrar) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.getComponentRegistrar(result); +} + +extern "C" NS_COM nsresult +NS_GetMemoryManager(nsIMemory* *result) +{ + if (!xpcomFunctions.getMemoryManager) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.getMemoryManager(result); +} + +extern "C" NS_COM nsresult +NS_NewLocalFile(const nsAString &path, PRBool followLinks, nsILocalFile* *result) +{ + if (!xpcomFunctions.newLocalFile) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.newLocalFile(path, followLinks, result); +} + +extern "C" NS_COM nsresult +NS_NewNativeLocalFile(const nsACString &path, PRBool followLinks, nsILocalFile* *result) +{ + if (!xpcomFunctions.newNativeLocalFile) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.newNativeLocalFile(path, followLinks, result); +} + +extern "C" NS_COM nsresult +NS_RegisterXPCOMExitRoutine(XPCOMExitRoutine exitRoutine, PRUint32 priority) +{ + if (!xpcomFunctions.registerExitRoutine) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.registerExitRoutine(exitRoutine, priority); +} + +extern "C" NS_COM nsresult +NS_UnregisterXPCOMExitRoutine(XPCOMExitRoutine exitRoutine) +{ + if (!xpcomFunctions.unregisterExitRoutine) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.unregisterExitRoutine(exitRoutine); +} + +extern "C" NS_COM nsresult +NS_GetDebug(nsIDebug* *result) +{ + if (!xpcomFunctions.getDebug) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.getDebug(result); +} + + +extern "C" NS_COM nsresult +NS_GetTraceRefcnt(nsITraceRefcnt* *result) +{ + if (!xpcomFunctions.getTraceRefcnt) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.getTraceRefcnt(result); +} + + +extern "C" NS_COM nsresult +NS_StringContainerInit(nsStringContainer &aStr) +{ + if (!xpcomFunctions.stringContainerInit) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.stringContainerInit(aStr); +} + +extern "C" NS_COM void +NS_StringContainerFinish(nsStringContainer &aStr) +{ + if (xpcomFunctions.stringContainerFinish) + xpcomFunctions.stringContainerFinish(aStr); +} + +extern "C" NS_COM PRUint32 +NS_StringGetData(const nsAString &aStr, const PRUnichar **aBuf, PRBool *aTerm) +{ + if (!xpcomFunctions.stringGetData) { + *aBuf = nsnull; + return 0; + } + return xpcomFunctions.stringGetData(aStr, aBuf, aTerm); +} + +extern "C" NS_COM PRUnichar * +NS_StringCloneData(const nsAString &aStr) +{ + if (!xpcomFunctions.stringCloneData) + return nsnull; + return xpcomFunctions.stringCloneData(aStr); +} + +extern "C" NS_COM nsresult +NS_StringSetData(nsAString &aStr, const PRUnichar *aBuf, PRUint32 aCount) +{ + if (!xpcomFunctions.stringSetData) + return NS_ERROR_NOT_INITIALIZED; + + return xpcomFunctions.stringSetData(aStr, aBuf, aCount); +} + +extern "C" NS_COM nsresult +NS_StringSetDataRange(nsAString &aStr, PRUint32 aCutStart, PRUint32 aCutLength, + const PRUnichar *aBuf, PRUint32 aCount) +{ + if (!xpcomFunctions.stringSetDataRange) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.stringSetDataRange(aStr, aCutStart, aCutLength, aBuf, aCount); +} + +extern "C" NS_COM nsresult +NS_StringCopy(nsAString &aDest, const nsAString &aSrc) +{ + if (!xpcomFunctions.stringCopy) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.stringCopy(aDest, aSrc); +} + + +extern "C" NS_COM nsresult +NS_CStringContainerInit(nsCStringContainer &aStr) +{ + if (!xpcomFunctions.cstringContainerInit) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.cstringContainerInit(aStr); +} + +extern "C" NS_COM void +NS_CStringContainerFinish(nsCStringContainer &aStr) +{ + if (xpcomFunctions.cstringContainerFinish) + xpcomFunctions.cstringContainerFinish(aStr); +} + +extern "C" NS_COM PRUint32 +NS_CStringGetData(const nsACString &aStr, const char **aBuf, PRBool *aTerm) +{ + if (!xpcomFunctions.cstringGetData) { + *aBuf = nsnull; + return 0; + } + return xpcomFunctions.cstringGetData(aStr, aBuf, aTerm); +} + +extern "C" NS_COM char * +NS_CStringCloneData(const nsACString &aStr) +{ + if (!xpcomFunctions.cstringCloneData) + return nsnull; + return xpcomFunctions.cstringCloneData(aStr); +} + +extern "C" NS_COM nsresult +NS_CStringSetData(nsACString &aStr, const char *aBuf, PRUint32 aCount) +{ + if (!xpcomFunctions.cstringSetData) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.cstringSetData(aStr, aBuf, aCount); +} + +extern "C" NS_COM nsresult +NS_CStringSetDataRange(nsACString &aStr, PRUint32 aCutStart, PRUint32 aCutLength, + const char *aBuf, PRUint32 aCount) +{ + if (!xpcomFunctions.cstringSetDataRange) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.cstringSetDataRange(aStr, aCutStart, aCutLength, aBuf, aCount); +} + +extern "C" NS_COM nsresult +NS_CStringCopy(nsACString &aDest, const nsACString &aSrc) +{ + if (!xpcomFunctions.cstringCopy) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.cstringCopy(aDest, aSrc); +} + +extern "C" NS_COM nsresult +NS_CStringToUTF16(const nsACString &aSrc, PRUint32 aSrcEncoding, nsAString &aDest) +{ + if (!xpcomFunctions.cstringToUTF16) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.cstringToUTF16(aSrc, aSrcEncoding, aDest); +} + +extern "C" NS_COM nsresult +NS_UTF16ToCString(const nsAString &aSrc, PRUint32 aDestEncoding, nsACString &aDest) +{ + if (!xpcomFunctions.utf16ToCString) + return NS_ERROR_NOT_INITIALIZED; + return xpcomFunctions.utf16ToCString(aSrc, aDestEncoding, aDest); +} + +#endif // #ifndef XPCOM_GLUE_NO_DYNAMIC_LOADING + + +static char sEnvString[MAXPATHLEN*10]; +static char* spEnvString = 0; + +void +GRE_AddGREToEnvironment() +{ + const char* grePath = GRE_GetGREPath(); + char szPath[MAXPATHLEN]; + if (!grePath) + return; + + const char* path = PR_GetEnv(XPCOM_SEARCH_KEY); + if (!path) + path = ""; +#ifdef VBOX + else + { + /* sEnvString is part of the environment because of putenv(). + * path is only temporarily used and not argument of putenv() itself */ + snprintf(szPath, sizeof(szPath), "%s", path); + path = szPath; + } +#endif + + if (spEnvString) PR_smprintf_free(spEnvString); + + /** + * if the PATH string is longer than our static buffer, allocate a + * buffer for the environment string. This buffer will be leaked at shutdown! + */ + if (strlen(grePath) + strlen(path) + + sizeof(XPCOM_SEARCH_KEY) + sizeof(XPCOM_ENV_PATH_SEPARATOR) > MAXPATHLEN*10) { + if (PR_smprintf(XPCOM_SEARCH_KEY "=%s" XPCOM_ENV_PATH_SEPARATOR "%s", + grePath, + path)) { + PR_SetEnv(spEnvString); + } + } else { + if (sprintf(sEnvString, + XPCOM_SEARCH_KEY "=%s" XPCOM_ENV_PATH_SEPARATOR "%s", + grePath, + path) > 0) { + PR_SetEnv(sEnvString); + } + } + +#if XP_WIN32 + // On windows, the current directory is searched before the + // PATH environment variable. This is a very bad thing + // since libraries in the cwd will be picked up before + // any that are in either the application or GRE directory. + + if (grePath) { + SetCurrentDirectory(grePath); + } +#endif +} + + +// Default GRE startup/shutdown code + +extern "C" +nsresult GRE_Startup() +{ + const char* xpcomLocation = GRE_GetXPCOMPath(); + + // Startup the XPCOM Glue that links us up with XPCOM. + nsresult rv = XPCOMGlueStartup(xpcomLocation); + + if (NS_FAILED(rv)) { + NS_WARNING("gre: XPCOMGlueStartup failed"); + return rv; + } + + nsGREDirServiceProvider *provider = new nsGREDirServiceProvider(); + if ( !provider ) { + NS_WARNING("GRE_Startup failed"); + XPCOMGlueShutdown(); + return NS_ERROR_OUT_OF_MEMORY; + } + + nsCOMPtr<nsIServiceManager> servMan; + NS_ADDREF( provider ); + rv = NS_InitXPCOM2(getter_AddRefs(servMan), nsnull, provider); + NS_RELEASE(provider); + + if ( NS_FAILED(rv) || !servMan) { + NS_WARNING("gre: NS_InitXPCOM failed"); + XPCOMGlueShutdown(); + return rv; + } + + return NS_OK; +} + +extern "C" +nsresult GRE_Shutdown() +{ + NS_ShutdownXPCOM(nsnull); + XPCOMGlueShutdown(); + return NS_OK; +} |