/****************************************************************************** * Print Spooler Functions * * * Copyright 1999 Thuy Nguyen * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include <stdarg.h> #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winspool.h" #include "winreg.h" #include "ddk/winsplp.h" #include "wine/debug.h" #include "wspool.h" WINE_DEFAULT_DEBUG_CHANNEL(winspool); /* ############################### */ static CRITICAL_SECTION backend_cs; static CRITICAL_SECTION_DEBUG backend_cs_debug = { 0, 0, &backend_cs, { &backend_cs_debug.ProcessLocksList, &backend_cs_debug.ProcessLocksList }, 0, 0, { (DWORD_PTR)(__FILE__ ": backend_cs") } }; static CRITICAL_SECTION backend_cs = { &backend_cs_debug, -1, 0, 0, 0, 0 }; /* ############################### */ HINSTANCE WINSPOOL_hInstance = NULL; static HMODULE hlocalspl = NULL; static BOOL (WINAPI *pInitializePrintProvidor)(LPPRINTPROVIDOR, DWORD, LPWSTR); PRINTPROVIDOR * backend = NULL; /****************************************************************************** * load_backend [internal] * * load and init our backend (the local printprovider: "localspl.dll") * * PARAMS * * RETURNS * Success: TRUE * Failure: FALSE and RPC_S_SERVER_UNAVAILABLE * * NOTES * In windows, winspool.drv use RPC to interact with the spooler service * (spoolsv.exe with spoolss.dll) and the spooler router (spoolss.dll) interact * with the correct printprovider (localspl.dll for the local system) * */ BOOL load_backend(void) { static PRINTPROVIDOR mybackend; DWORD res; EnterCriticalSection(&backend_cs); hlocalspl = LoadLibraryA("localspl.dll"); if (hlocalspl) { pInitializePrintProvidor = (void *) GetProcAddress(hlocalspl, "InitializePrintProvidor"); if (pInitializePrintProvidor) { /* native localspl does not clear unused entries */ memset(&mybackend, 0, sizeof(mybackend)); res = pInitializePrintProvidor(&mybackend, sizeof(mybackend), NULL); if (res) { backend = &mybackend; LeaveCriticalSection(&backend_cs); TRACE("backend: %p (%p)\n", backend, hlocalspl); return TRUE; } } FreeLibrary(hlocalspl); } LeaveCriticalSection(&backend_cs); WARN("failed to load the backend: %u\n", GetLastError()); SetLastError(RPC_S_SERVER_UNAVAILABLE); return FALSE; } /****************************************************************************** * DllMain * * Winspool entry point. * */ BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD reason, LPVOID lpReserved) { switch (reason) { case DLL_PROCESS_ATTACH: { WINSPOOL_hInstance = hInstance; DisableThreadLibraryCalls(hInstance); WINSPOOL_LoadSystemPrinters(); break; } case DLL_PROCESS_DETACH: if (lpReserved) break; DeleteCriticalSection(&backend_cs); FreeLibrary(hlocalspl); break; } return TRUE; }