diff options
| -rw-r--r-- | sal/osl/w32/dllentry.c | 81 |
1 files changed, 79 insertions, 2 deletions
diff --git a/sal/osl/w32/dllentry.c b/sal/osl/w32/dllentry.c index 57b9142647ce..ce421e4bf28f 100644 --- a/sal/osl/w32/dllentry.c +++ b/sal/osl/w32/dllentry.c @@ -4,9 +4,9 @@ * * $RCSfile: dllentry.c,v $ * - * $Revision: 1.23 $ + * $Revision: 1.24 $ * - * last change: $Author: rt $ $Date: 2005-09-08 15:05:54 $ + * last change: $Author: kz $ $Date: 2006-02-28 12:53:18 $ * * The Contents of this file are made available subject to * the terms of GNU Lesser General Public License Version 2.1. @@ -34,6 +34,8 @@ ************************************************************************/ #include <windows.h> +#include <tlhelp32.h> +#include <systools/win32/uwinapi.h> #include <winsock.h> #include <osl/diagnose.h> #include <sal/types.h> @@ -252,10 +254,85 @@ static BOOL WINAPI _RawDllMain( HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvR return TRUE; } +static DWORD GetParentProcessId() +{ + DWORD dwParentProcessId = 0; + HANDLE hSnapshot = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 ); + + if ( IsValidHandle( hSnapshot ) ) + { + PROCESSENTRY32 pe; + BOOL fSuccess; + + ZeroMemory( &pe, sizeof(pe) ); + pe.dwSize = sizeof(pe); + fSuccess = Process32First( hSnapshot, &pe ); + + while( fSuccess ) + { + if ( GetCurrentProcessId() == pe.th32ProcessID ) + { + dwParentProcessId = pe.th32ParentProcessID; + break; + } + + fSuccess = Process32Next( hSnapshot, &pe ); + } + + CloseHandle( hSnapshot ); + } + + return dwParentProcessId; +} + +static DWORD WINAPI ParentMonitorThreadProc( LPVOID lpParam ) +{ + DWORD dwParentProcessId = (DWORD)lpParam; + + HANDLE hParentProcess = OpenProcess( SYNCHRONIZE, FALSE, dwParentProcessId ); + if ( IsValidHandle( hParentProcess ) ) + { + if ( WAIT_OBJECT_0 == WaitForSingleObject( hParentProcess, INFINITE ) ) + { + TerminateProcess( GetCurrentProcess(), 0 ); + } + CloseHandle( hParentProcess ); + } + return 0; +} + BOOL WINAPI DllMain( HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved ) { switch (fdwReason) { + case DLL_PROCESS_ATTACH: + { + TCHAR szBuffer[64]; + + // This code will attach the process to it's parent process + // if the parent process had set the environment variable. + // The corresponding code (setting the environment variable) + // is is desktop/win32/source/officeloader.cxx + + + DWORD dwResult = GetEnvironmentVariable( "ATTACHED_PARENT_PROCESSID", szBuffer, sizeof(szBuffer) ); + + if ( dwResult && dwResult < sizeof(szBuffer) ) + { + DWORD dwThreadId = 0; + + DWORD dwParentProcessId = (DWORD)atol( szBuffer ); + + if ( dwParentProcessId && GetParentProcessId() == dwParentProcessId ) + { + // No error check, it works or it does not + CreateThread( NULL, 0, ParentMonitorThreadProc, (LPVOID)dwParentProcessId, 0, &dwThreadId ); + } + } + + return TRUE; + } + case DLL_THREAD_ATTACH: break; |