From bfe1bd0fc087be44c70904aee0fe4276643d206d Mon Sep 17 00:00:00 2001 From: George Hazan Date: Fri, 20 Jul 2012 15:56:25 +0000 Subject: - db3x_mmap is completely moved to a class; - the old nightmare in the core "How to detect a db plugin and load it" is eliminated forever; - databases are the usual plugins now (loadable via Load) - dynamic DATABASELINK registration git-svn-id: http://svn.miranda-ng.org/main/trunk@1082 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c --- plugins/Db3x_mmap/init.cpp | 166 ++++++++++++++++++++------------------------- 1 file changed, 73 insertions(+), 93 deletions(-) (limited to 'plugins/Db3x_mmap/init.cpp') diff --git a/plugins/Db3x_mmap/init.cpp b/plugins/Db3x_mmap/init.cpp index b655e61499..03f4f3c3bb 100644 --- a/plugins/Db3x_mmap/init.cpp +++ b/plugins/Db3x_mmap/init.cpp @@ -1,8 +1,8 @@ /* -Miranda IM: the free IM client for Microsoft* Windows* +Miranda NG: the free IM client for Microsoft* Windows* -Copyright 2000-2003 Miranda ICQ/IM project, +Copyright 2012 Miranda NG project, all portions of this codebase are copyrighted to the people listed in contributors.txt. @@ -25,19 +25,15 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. int hLangpack; -extern TCHAR szDbPath[MAX_PATH]; - -CDdxMmap* g_Db = NULL; - static PLUGININFOEX pluginInfo = { sizeof(PLUGININFOEX), - "Miranda mmap database driver", + "Miranda NG mmap database driver", __VERSION_DWORD, "Provides Miranda database support: global settings, contacts, history, settings per contact.", - "Miranda-IM project", + "Miranda-NG project", "bio@msx.ru; ghazan@miranda.im", - "Copyright 2000-2011 Miranda IM project", + "Copyright 2012 Miranda NG project", "", UNICODE_AWARE, {0xf7a6b27c, 0x9d9c, 0x4a42, { 0xbe, 0x86, 0xa4, 0x48, 0xae, 0x10, 0x91, 0x61 }} //{F7A6B27C-9D9C-4a42-BE86-A448AE109161} @@ -45,129 +41,105 @@ static PLUGININFOEX pluginInfo = HINSTANCE g_hInst = NULL; +LIST g_Dbs(1, (LIST::FTSortFunc)HandleKeySort); + +///////////////////////////////////////////////////////////////////////////////////////// + static int getCapability( int flag ) { return 0; } // returns 0 if the profile is created, EMKPRF* -static int makeDatabase(TCHAR *profile, int *error) +static int makeDatabase(const TCHAR *profile, int *error) { - HANDLE hFile = CreateFile(profile, GENERIC_READ|GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL); - if ( hFile != INVALID_HANDLE_VALUE ) { - CreateDbHeaders(hFile); - CloseHandle(hFile); + CDdxMmap *tmp = new CDdxMmap(profile); + if (tmp->Create() == ERROR_SUCCESS) { + tmp->CreateDbHeaders(); + delete tmp; return 0; } - if ( error != NULL ) *error = EMKPRF_CREATEFAILED; + delete tmp; + if (error != NULL) *error = EMKPRF_CREATEFAILED; return 1; } // returns 0 if the given profile has a valid header -static int grokHeader(TCHAR *profile, int *error) +static int grokHeader(const TCHAR *profile, int *error) { - int rc = 1; - int chk = 0; - struct DBHeader hdr; - HANDLE hFile = INVALID_HANDLE_VALUE; - DWORD dummy = 0; - - hFile = CreateFile(profile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); - if ( hFile == INVALID_HANDLE_VALUE ) { - if ( error != NULL ) *error = EGROKPRF_CANTREAD; + CDdxMmap *tmp = new CDdxMmap(profile); + if (tmp->Load(true) != ERROR_SUCCESS) { + delete tmp; + if (error != NULL) *error = EGROKPRF_CANTREAD; return 1; } - // read the header, which can fail (for various reasons) - if ( !ReadFile(hFile, &hdr, sizeof(struct DBHeader), &dummy, NULL)) { - if ( error != NULL) *error = EGROKPRF_CANTREAD; - CloseHandle(hFile); - return 1; - } - chk = CheckDbHeaders(&hdr); + + int chk = tmp->CheckDbHeaders(); + delete tmp; if ( chk == 0 ) { // all the internal tests passed, hurrah - rc = 0; - if ( error != NULL ) *error = 0; - } else { - // didn't pass at all, or some did. - switch ( chk ) { - case 1: - { - // "Miranda ICQ DB" wasn't present - if ( error != NULL ) *error = EGROKPRF_UNKHEADER; - break; - } - case 2: - { - // header was present, but version information newer - if ( error != NULL ) *error = EGROKPRF_VERNEWER; - break; - } - case 3: - { - // header/version OK, internal data missing - if ( error != NULL ) *error = EGROKPRF_DAMAGED; - break; - } - } // switch - } //if - CloseHandle(hFile); - return rc; + if (error != NULL) *error = 0; + return 0; + } + + // didn't pass at all, or some did. + switch ( chk ) { + case 1: + // "Miranda ICQ DB" wasn't present + if (error != NULL) *error = EGROKPRF_UNKHEADER; + break; + + case 2: + // header was present, but version information newer + if (error != NULL) *error = EGROKPRF_VERNEWER; + break; + + case 3: + // header/version OK, internal data missing + if (error != NULL) *error = EGROKPRF_DAMAGED; + break; + } + + return 1; } // returns 0 if all the APIs are injected otherwise, 1 -static MIDatabase* LoadDatabase(TCHAR *profile) +static MIDatabase* LoadDatabase(const TCHAR *profile) { - if (g_Db) delete g_Db; - g_Db = new CDdxMmap(profile); - - // don't need thread notifications - _tcsncpy(szDbPath, profile, SIZEOF(szDbPath)); - // set the memory, lists & UTF8 manager mir_getLP( &pluginInfo ); - // inject all APIs and hooks into the core - LoadDatabaseModule(); + CDdxMmap* db = new CDdxMmap(profile); + if (db->Load(false) != ERROR_SUCCESS) { + delete db; + return NULL; + } - return g_Db; + g_Dbs.insert(db); + return db; } -static int UnloadDatabase(int wasLoaded) +static int UnloadDatabase(MIDatabase* db) { - if ( !wasLoaded) return 0; - UnloadDatabaseModule(); + g_Dbs.remove((CDdxMmap*)db); + delete (CDdxMmap*)db; return 0; } -static int getFriendlyName( TCHAR *buf, size_t cch, int shortName ) +static DATABASELINK dblink = { - _tcsncpy(buf,shortName ? _T("db3x mmap driver") : _T("db3x mmap database support"), cch); - return 0; -} - -static DATABASELINK dblink = { sizeof(DATABASELINK), - getCapability, - getFriendlyName, + "db3x mmap driver", + _T("db3x mmap database support"), makeDatabase, grokHeader, LoadDatabase, - UnloadDatabase, + UnloadDatabase }; -BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID reserved) -{ - g_hInst = hInstDLL; - return TRUE; -} - -extern "C" __declspec(dllexport) DATABASELINK* DatabasePluginInfo(void * reserved) -{ - return &dblink; -} +///////////////////////////////////////////////////////////////////////////////////////// -extern "C" __declspec(dllexport) PLUGININFOEX * MirandaPluginInfoEx(DWORD mirandaVersion) +extern "C" __declspec(dllexport) PLUGININFOEX* MirandaPluginInfoEx(DWORD mirandaVersion) { return &pluginInfo; } @@ -176,10 +148,18 @@ extern "C" __declspec(dllexport) const MUUID MirandaInterfaces[] = {MIID_DATABAS extern "C" __declspec(dllexport) int Load(void) { - return 1; + RegisterDatabasePlugin(&dblink); + return 0; } extern "C" __declspec(dllexport) int Unload(void) { + g_Dbs.destroy(); return 0; } + +BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID reserved) +{ + g_hInst = hInstDLL; + return TRUE; +} -- cgit v1.2.3