347 lines
17 KiB
C++
347 lines
17 KiB
C++
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/*======================================================================================//
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| //
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|Copyright (c) 1998, 1999 Sequent Computer Systems, Incorporated. All rights reserved. //
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| //
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|Description: //
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| //
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|---------------------------------------------------------------------------------------//
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| This file implements the CProcCon class methods defined in ProcConSvc.h //
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|---------------------------------------------------------------------------------------//
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| //
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|Created: //
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| //
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| Jarl McDonald 07-98 //
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| //
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|Revision History: //
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| //
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|=======================================================================================*/
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#include "ProcConSvc.h"
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// CProcCon Constructor
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// Note: this function runs as part of service start so keep it quick!
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CProcCon::CProcCon( void ) : m_ready( FALSE ), m_shutEvent( NULL ), m_versionInfo( NULL ),
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m_endEvent ( NULL ),
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m_shutDown( FALSE )
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{
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memset( &m_context, 0, sizeof(m_context) );
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m_hThread[USER_SERVER] = m_hThread[PROC_SERVER] = NULL;
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SYSTEM_INFO si;
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GetSystemInfo( &si );
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m_NumberOfProcessors = si.dwNumberOfProcessors;
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m_PageSize = si.dwPageSize;
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m_versionInfo = new CVersion( GetModuleHandle( NULL ) );
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PCBuildAdminSecAttr( m_secAttr );
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m_context.cDB = new CProcConDB( m_PageSize );
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if ( !m_context.cDB || !m_context.cDB->ReadyToRun() ||
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!m_versionInfo || !m_secAttr.lpSecurityDescriptor ) {
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PCLogMessage( PC_STARTUP_FAILED, EVENTLOG_ERROR_TYPE, 1, PROCCON_SVC_DISP_NAME );
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return;
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}
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m_shutEvent = CreateEvent( NULL, TRUE, FALSE, NULL );
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m_endEvent = CreateEvent( NULL, TRUE, FALSE, NULL );
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m_context.mgrDoneEvent = CreateEvent( NULL, TRUE, FALSE, NULL );
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m_context.userDoneEvent = CreateEvent( NULL, TRUE, FALSE, NULL );
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m_context.mediatorEvent = CreateEvent( &m_secAttr, FALSE, FALSE, PC_MEDIATOR_EVENT );
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if ( !m_shutEvent || !m_endEvent || !m_context.mgrDoneEvent || !m_context.userDoneEvent || !m_context.mediatorEvent ) {
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PCLogUnExError( m_context.mediatorEvent? TEXT("PCEvent") : PC_MEDIATOR_EVENT, TEXT("CreateEvent") );
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return;
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}
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// Allocate shared memory for mediator view of jobs...
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m_context.mediatorTableHandle = CreateFileMapping( HANDLE_FF_64, &m_secAttr, PAGE_READWRITE,
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0, sizeof(PCMediateHdr), PC_MEDIATOR_FILEMAP );
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if ( !m_context.mediatorTableHandle ) {
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PCLogUnExError( PC_MEDIATOR_FILEMAP, TEXT("CreateMediatorMapping") );
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return;
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}
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m_context.mediatorTable = (PCMediateHdr *) MapViewOfFile( m_context.mediatorTableHandle,
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FILE_MAP_WRITE, 0, 0, 0 );
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if ( !m_context.mediatorTable ) {
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CloseHandle( m_context.mediatorTableHandle );
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m_context.mediatorTableHandle = NULL;
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PCLogUnExError( PC_MEDIATOR_FILEMAP, TEXT("MapMediatorJobData") );
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return;
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}
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m_context.mediatorTable->svcEventHandle = m_context.mediatorEvent;
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m_context.mediatorTable->svcPID = GetCurrentProcessId();
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// If mediator is not running, init shared memory, set up completion port, and start mediator...
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if ( !PCTestIsRunning( PC_MEDIATOR_EXCLUSION ) ) {
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memset( &m_context.mediatorTable->groupBlock, 0, sizeof(m_context.mediatorTable->groupBlock) );
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m_context.mediatorTable->lastCompKey = 0;
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m_context.completionPort = CreateIoCompletionPort( INVALID_HANDLE_VALUE, NULL, NULL, 0 );
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if ( !m_context.completionPort )
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PCLogUnExError( TEXT("PCInit"), TEXT("CreateIoCompletionPort") );
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m_context.mediatorTable->svcPortHandle = m_context.completionPort;
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StartMediator();
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}
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// If mediator is already running...
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// recover our completion port by duplicating the handle...
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else {
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// Open mediator process so we can duplicate handles...
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m_context.mediatorTable->medProcessInfo.hProcess =
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OpenProcess( PROCESS_DUP_HANDLE, FALSE, m_context.mediatorTable->medProcessInfo.dwProcessId );
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// Recover our completion port by duplicating the handle...
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if ( !DuplicateHandle( m_context.mediatorTable->medProcessInfo.hProcess,
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m_context.mediatorTable->medPortHandle,
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GetCurrentProcess(),
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&m_context.mediatorTable->svcPortHandle,
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NULL,
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FALSE,
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DUPLICATE_SAME_ACCESS ) )
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PCLogUnExError( TEXT("PCInit"), TEXT("DupMediatorPortHandle") );
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m_context.completionPort = m_context.mediatorTable->svcPortHandle;
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// Map all job table blocks by duplicating the handles...
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m_context.mediatorTable->SvcChainBlocks();
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}
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CloseHandle( m_context.mediatorTable->medProcessInfo.hProcess );
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m_context.cPC = this;
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LaunchProcServer();
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LaunchUserServer();
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if (!ReadyToRun() )
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HardStop();
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}
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// CProcCon Destructor
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CProcCon::~CProcCon( void )
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{
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if ( m_context.cUser ) {
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WaitForSingleObject( m_context.userDoneEvent, 5000 );
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delete m_context.cUser;
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m_context.cUser = NULL;
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}
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if ( m_context.cMgr ) {
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WaitForSingleObject( m_context.mgrDoneEvent, 5000 );
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delete m_context.cMgr;
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m_context.cMgr = NULL;
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}
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if ( m_context.cDB ) {
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delete m_context.cDB;
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m_context.cDB = NULL;
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}
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if ( m_shutEvent ) {
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CloseHandle( m_shutEvent );
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m_shutEvent = NULL;
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}
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if ( m_endEvent ) {
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CloseHandle( m_endEvent );
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m_endEvent = NULL;
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}
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if ( m_versionInfo ) {
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delete m_versionInfo;
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m_versionInfo = NULL;
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}
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CloseHandle( m_context.mgrDoneEvent );
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CloseHandle( m_context.userDoneEvent );
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CloseHandle( m_context.mediatorEvent );
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CloseHandle( m_context.mediatorTableHandle );
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PCFreeSecAttr( m_secAttr );
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}
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//--------------------------------------------------------------------------------------------//
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// Function to determine if all CProcCon initial conditions have been met //
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// Input: None //
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// Returns: TRUE if ready, FALSE if not //
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//--------------------------------------------------------------------------------------------//
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BOOL CProcCon::ReadyToRun( void )
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{
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return m_context.cDB &&
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m_hThread[PROC_SERVER] &&
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m_hThread[USER_SERVER] &&
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m_secAttr.lpSecurityDescriptor;
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}
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//--------------------------------------------------------------------------------------------//
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// Function to start the ProcCon Mediator Process //
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// Input: None //
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// Returns: NT or ProcCon Error code //
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//--------------------------------------------------------------------------------------------//
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PCULONG32 CProcCon::StartMediator( void )
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{
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// Don't start if already running...
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if ( PCTestIsRunning( PC_MEDIATOR_EXCLUSION ) )
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return PCERROR_MEDIATOR_ALREADY_RUNNING;
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// Get our module name then replace base name with mediator base name...
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// (Thus mediator exe must be in the same location as the service exe).
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TCHAR path[MAX_PATH];
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if ( !GetModuleFileName( NULL, path, MAX_PATH ) ) {
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PCLogUnExError( TEXT("PCMediator"), TEXT("GetMediatorPath") );
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path[0] = 0;
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}
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for ( int i = _tcslen( path ); i; --i ) {
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if ( path[i] == TEXT('\\') ) { path[i + 1] = 0; break; }
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}
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_tcscat( path, PC_MEDIATOR_BASE_NAME );
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// Start mediator process -- don't quit if this fails...
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STARTUPINFO strtInfo;
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memset( &strtInfo, 0, sizeof(strtInfo) );
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strtInfo.cb = sizeof(strtInfo);
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if ( !CreateProcess( path, NULL, &m_secAttr, &m_secAttr, FALSE,
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CREATE_NEW_PROCESS_GROUP + CREATE_NO_WINDOW,
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NULL, NULL, &strtInfo, &m_context.mediatorTable->medProcessInfo ) ) {
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DWORD rc = GetLastError();
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PCLogUnExError( TEXT("PCMediator"), TEXT("CreateMediator") );
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return rc;
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}
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return ERROR_SUCCESS;
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}
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//--------------------------------------------------------------------------------------------//
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// Function to stop (kill) the ProcCon Mediator Process //
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// Input: None //
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// Returns: NT or ProcCon Error code //
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//--------------------------------------------------------------------------------------------//
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PCULONG32 CProcCon::StopMediator ( void )
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{
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DWORD rc = ERROR_SUCCESS;
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HANDLE hProc = OpenProcess( PROCESS_TERMINATE, FALSE, m_context.mediatorTable->medProcessInfo.dwProcessId );
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m_context.mediatorTable->medProcessInfo.hProcess = hProc;
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if ( !hProc ) {
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rc = GetLastError();
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if (rc == ERROR_INVALID_PARAMETER) rc = PCERROR_MEDIATOR_NOT_RUNNING;
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}
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else if ( !TerminateProcess( m_context.mediatorTable->medProcessInfo.hProcess, PCERROR_KILLED_BY_REQUEST ) )
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rc = GetLastError();
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if ( hProc )
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CloseHandle( hProc );
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return rc;
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}
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//--------------------------------------------------------------------------------------------//
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// Function to return system information //
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// Input: Buffer for information, locations for size and count (always 1) //
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// Returns: TRUE if shutdown requested, FALSE if not //
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//--------------------------------------------------------------------------------------------//
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void CProcCon::GetPCSystemInfo( PCSystemInfo *data, PCINT16 *itemLen, PCINT16 *itemCount )
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{
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*itemLen = sizeof(PCSystemInfo);
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*itemCount = 1;
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memset( data, 0, *itemLen );
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_tcsncpy( data->fileVersion, m_versionInfo->GetFileVersion(), VERSION_STRING_LEN );
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_tcsncpy( data->productVersion, m_versionInfo->GetProductVersion(), VERSION_STRING_LEN );
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_tcsncpy( data->fileFlags, m_versionInfo->GetFileFlags(), VERSION_STRING_LEN );
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_tcsncpy( data->medFileVersion, m_context.mediatorTable->medFileVersion, VERSION_STRING_LEN );
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_tcsncpy( data->medProductVersion, m_context.mediatorTable->medProductVersion, VERSION_STRING_LEN );
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_tcsncpy( data->medFileFlags, m_context.mediatorTable->medFileFlags, VERSION_STRING_LEN );
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data->fixedSignature = m_versionInfo->GetFixedSignature();
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data->fixedFileVersionMS = m_versionInfo->GetFixedFileVersionMS();
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data->fixedFileVersionLS = m_versionInfo->GetFixedFileVersionLS();
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data->fixedProductVersionMS = m_versionInfo->GetFixedProductVersionMS();
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data->fixedProductVersionLS = m_versionInfo->GetFixedProductVersionLS();
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data->fixedFileFlags = m_versionInfo->GetFixedFileFlags();
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data->fixedFileOS = m_versionInfo->GetFixedFileOS();
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data->fixedFileType = m_versionInfo->GetFixedFileType();
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data->fixedFileSubtype = m_versionInfo->GetFixedFileSubtype();
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data->fixedFileDateMS = m_versionInfo->GetFixedFileDateMS();
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data->fixedFileDateLS = m_versionInfo->GetFixedFileDateLS();
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data->sysParms.manageIntervalSeconds = m_context.cDB->GetPollDelaySeconds();
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data->sysParms.timeoutValueMs = m_context.cUser->GetTimeout();
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data->sysParms.numberOfProcessors = m_NumberOfProcessors;
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data->sysParms.memoryPageSize = m_PageSize;
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data->sysParms.processorMask = m_context.cMgr->GetSystemMask();
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}
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//--------------------------------------------------------------------------------------------//
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// CProcCon thread function -- this function runs in its own thread //
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// Input: None //
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// Returns: Nothing //
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// Note: All ProcCon work is done in the user communication and process management //
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// threads so this fcn has only an oversight role. //
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//--------------------------------------------------------------------------------------------//
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void CProcCon::Run( void )
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{
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ResumeThread(m_hThread[USER_SERVER] );
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ResumeThread(m_hThread[PROC_SERVER] );
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WaitForSingleObject( m_endEvent, INFINITE );
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}
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//--------------------------------------------------------------------------------------------//
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// CProcCon function to handle 'hard' stop: failure before threads are released //
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// Input: Optional Thread Exit Code //
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// Returns: Nothing //
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// Note: This function forcefully close the user communication and process management //
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// threads. //
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//--------------------------------------------------------------------------------------------//
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void CProcCon::HardStop( PCULONG32 ExitCode )
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{
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if ( m_hThread[USER_SERVER] ) {
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TerminateThread(m_hThread[USER_SERVER], ExitCode );
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m_hThread[USER_SERVER] = NULL;
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}
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if ( m_hThread[PROC_SERVER] ) {
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TerminateThread(m_hThread[PROC_SERVER], ExitCode );
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m_hThread[PROC_SERVER] = NULL;
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}
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}
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//--------------------------------------------------------------------------------------------//
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// Function called by service stop when stop requested //
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// Input: None //
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// Returns: Nothing //
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// Note: this function runs as part of service stop //
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//--------------------------------------------------------------------------------------------//
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void CProcCon::Stop( void )
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{
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if ( m_shutEvent ) {
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m_shutDown = TRUE;
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SetEvent( m_shutEvent );
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WaitForMultipleObjects( ENTRY_COUNT(m_hThread), m_hThread, TRUE, 30000 );
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SetEvent( m_endEvent );
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}
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}
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//--------------------------------------------------------------------------------------------//
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// Function to start the Process Management thread //
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// Input: None //
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// Returns: Nothing //
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// Note: this function runs as part of service start so it must be quick. //
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//--------------------------------------------------------------------------------------------//
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void CProcCon::LaunchProcServer( void )
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{
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m_hThread[PROC_SERVER] = CreateThread( NULL, 0, &PCProcServer, &m_context, CREATE_SUSPENDED, NULL );
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if ( !m_hThread[PROC_SERVER] )
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PCLogUnExError( TEXT("PCProcServer"), TEXT("CreateThread") );
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}
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//--------------------------------------------------------------------------------------------//
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// Function to start the User Communication thread //
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// Input: None //
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// Returns: Nothing //
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// Note: this function runs as part of service start so it must be quick. //
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//--------------------------------------------------------------------------------------------//
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void CProcCon::LaunchUserServer( void )
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{
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m_hThread[USER_SERVER] = CreateThread( NULL, 0, &PCUserServer, &m_context, CREATE_SUSPENDED, NULL );
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if ( !m_hThread[USER_SERVER] )
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PCLogUnExError( TEXT("PCUserServer"), TEXT("CreateThread") );
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}
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// End of CProcCon.cpp
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//============================================================================J McDonald fecit====//
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