327 lines
8.3 KiB
C
327 lines
8.3 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifdef _MSC_VER
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#pragma warning(push,1) /* disable warnings within system headers */
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#endif
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#include <windows.h>
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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#include <tlhelp32.h>
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#include <systools/win32/uwinapi.h>
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#include <winsock.h>
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#include <osl/diagnose.h>
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#include <sal/types.h>
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#include <float.h>
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#include <osl/diagnose.h>
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#include <osl/mutex.h>
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#include <sal/types.h>
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#include "internal/rtllifecycle.h"
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//------------------------------------------------------------------------------
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// externals
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//------------------------------------------------------------------------------
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extern DWORD g_dwTLSTextEncodingIndex;
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extern void SAL_CALL _osl_callThreadKeyCallbackOnThreadDetach(void);
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extern CRITICAL_SECTION g_ThreadKeyListCS;
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extern oslMutex g_Mutex;
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extern oslMutex g_CurrentDirectoryMutex;
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#ifdef __MINGW32__
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typedef void (*func_ptr) (void);
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extern func_ptr __CTOR_LIST__[];
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extern func_ptr __DTOR_LIST__[];
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static void do_startup(void);
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static void do_cleanup(void);
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#else
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/*
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This is needed because DllMain is called after static constructors. A DLL's
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startup and shutdown sequence looks like this:
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_pRawDllMain()
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_CRT_INIT()
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DllMain()
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....
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DllMain()
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_CRT_INIT()
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_pRawDllMain()
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*/
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static BOOL WINAPI _RawDllMain( HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved );
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extern BOOL (WINAPI *_pRawDllMain)(HANDLE, DWORD, LPVOID) = _RawDllMain;
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#endif
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#ifdef __MINGW32__
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void
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__do_global_dtors (void)
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{
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static func_ptr *p = __DTOR_LIST__ + 1;
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/*
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* Call each destructor in the destructor list until a null pointer
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* is encountered.
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*/
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while (*p)
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{
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(*(p)) ();
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p++;
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}
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}
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void
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__do_global_ctors (void)
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{
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sal_uIntPtr nptrs = (sal_uIntPtr) __CTOR_LIST__[0];
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unsigned i;
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/*
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* If the first entry in the constructor list is -1 then the list
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* is terminated with a null entry. Otherwise the first entry was
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* the number of pointers in the list.
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*/
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if (nptrs == (sal_uIntPtr)-1)
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{
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for (nptrs = 0; __CTOR_LIST__[nptrs + 1] != 0; nptrs++)
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;
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}
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/*
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* Go through the list backwards calling constructors.
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*/
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for (i = nptrs; i >= 1; i--)
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{
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__CTOR_LIST__[i] ();
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}
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/*
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* Register the destructors for processing on exit.
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*/
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atexit (__do_global_dtors);
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}
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static int initialized = 0;
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void
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__main (void)
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{
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if (!initialized)
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{
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initialized = 1;
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do_startup();
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__do_global_ctors ();
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}
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}
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static void do_startup( void )
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{
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#else
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static BOOL WINAPI _RawDllMain( HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved )
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{
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(void)hinstDLL; /* avoid warnings */
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(void)lpvReserved; /* avoid warnings */
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switch (fdwReason)
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{
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case DLL_PROCESS_ATTACH:
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{
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#endif
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#if OSL_DEBUG_LEVEL < 2
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/* Suppress file error messages from system like "Floppy A: not inserted" */
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SetErrorMode( SEM_NOOPENFILEERRORBOX | SEM_FAILCRITICALERRORS );
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#endif
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/* initialize global mutex */
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g_Mutex = osl_createMutex();
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/* initialize "current directory" mutex */
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g_CurrentDirectoryMutex = osl_createMutex();
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g_dwTLSTextEncodingIndex = TlsAlloc();
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InitializeCriticalSection( &g_ThreadKeyListCS );
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//We disable floating point exceptions. This is the usual state at program startup
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//but on Windows 98 and ME this is not always the case.
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_control87(_MCW_EM, _MCW_EM);
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#ifdef __MINGW32__
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atexit(do_cleanup);
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}
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void do_cleanup( void )
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{
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#else
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break;
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}
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case DLL_PROCESS_DETACH:
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#endif
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WSACleanup( );
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TlsFree( g_dwTLSTextEncodingIndex );
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DeleteCriticalSection( &g_ThreadKeyListCS );
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osl_destroyMutex( g_Mutex );
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osl_destroyMutex( g_CurrentDirectoryMutex );
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#ifndef __MINGW32__
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/*
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On a product build memory management finalization might
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cause a crash without assertion (assertions off) if heap is
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corrupted. But a crash report won't help here because at
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this point all other threads have been terminated and only
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ntdll is on the stack. No chance to find the reason for the
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corrupted heap if so.
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So annoying the user with a crash report is completely useless.
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*/
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#ifndef DBG_UTIL
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__try
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#endif
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{
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/* cleanup locale hashtable */
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rtl_locale_fini();
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/* finalize memory management */
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rtl_memory_fini();
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rtl_cache_fini();
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rtl_arena_fini();
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}
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#ifndef DBG_UTIL
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__except( EXCEPTION_EXECUTE_HANDLER )
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{
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}
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#endif
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break;
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}
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return TRUE;
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#endif
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}
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static DWORD GetParentProcessId()
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{
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DWORD dwParentProcessId = 0;
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HANDLE hSnapshot = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
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if ( IsValidHandle( hSnapshot ) )
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{
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PROCESSENTRY32 pe;
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BOOL fSuccess;
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ZeroMemory( &pe, sizeof(pe) );
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pe.dwSize = sizeof(pe);
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fSuccess = Process32First( hSnapshot, &pe );
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while( fSuccess )
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{
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if ( GetCurrentProcessId() == pe.th32ProcessID )
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{
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dwParentProcessId = pe.th32ParentProcessID;
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break;
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}
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fSuccess = Process32Next( hSnapshot, &pe );
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}
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CloseHandle( hSnapshot );
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}
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return dwParentProcessId;
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}
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static DWORD WINAPI ParentMonitorThreadProc( LPVOID lpParam )
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{
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DWORD_PTR dwParentProcessId = (DWORD_PTR)lpParam;
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HANDLE hParentProcess = OpenProcess( SYNCHRONIZE, FALSE, dwParentProcessId );
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if ( IsValidHandle( hParentProcess ) )
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{
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if ( WAIT_OBJECT_0 == WaitForSingleObject( hParentProcess, INFINITE ) )
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{
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TerminateProcess( GetCurrentProcess(), 0 );
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}
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CloseHandle( hParentProcess );
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}
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return 0;
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}
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BOOL WINAPI DllMain( HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved )
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{
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(void)hinstDLL; /* avoid warning */
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(void)lpvReserved; /* avoid warning */
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switch (fdwReason)
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{
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case DLL_PROCESS_ATTACH:
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{
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TCHAR szBuffer[64];
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// This code will attach the process to it's parent process
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// if the parent process had set the environment variable.
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// The corresponding code (setting the environment variable)
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// is is desktop/win32/source/officeloader.cxx
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DWORD dwResult = GetEnvironmentVariable( "ATTACHED_PARENT_PROCESSID", szBuffer, sizeof(szBuffer) );
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if ( dwResult && dwResult < sizeof(szBuffer) )
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{
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DWORD dwThreadId = 0;
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DWORD_PTR dwParentProcessId = (DWORD_PTR)atol( szBuffer );
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if ( dwParentProcessId && GetParentProcessId() == dwParentProcessId )
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{
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// No error check, it works or it does not
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// Thread should only be started for headless mode, see desktop/win32/source/officeloader.cxx
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CreateThread( NULL, 0, ParentMonitorThreadProc, (LPVOID)dwParentProcessId, 0, &dwThreadId ); //
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}
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}
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return TRUE;
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}
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case DLL_THREAD_ATTACH:
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break;
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case DLL_THREAD_DETACH:
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_osl_callThreadKeyCallbackOnThreadDetach( );
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break;
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}
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return TRUE;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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