mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
908 lines
24 KiB
908 lines
24 KiB
//+----------------------------------------------------------------------------
|
|
//
|
|
// File: Monitor.cpp
|
|
//
|
|
// Module: CMMON32.EXE
|
|
//
|
|
// Synopsis: Implement class CMonitor
|
|
//
|
|
// Copyright (c) 1998-1999 Microsoft Corporation
|
|
//
|
|
// Author: fengsun Created 01/22/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
|
|
#include "cmmaster.h"
|
|
#include "Monitor.h"
|
|
#include "Connection.h"
|
|
|
|
// The following blocks are copied from winuser.h and wtsapi32.h (we compile with
|
|
// _WIN32_WINNT set to less than 5.01, so we can't get these values via a #include)
|
|
//
|
|
#include "winuser.h"
|
|
#define WM_WTSSESSION_CHANGE 0x02B1
|
|
//
|
|
#include "WtsApi32.h"
|
|
#define WTS_CONSOLE_CONNECT 0x1
|
|
#define WTS_CONSOLE_DISCONNECT 0x2
|
|
#define WTS_REMOTE_CONNECT 0x3
|
|
#define WTS_REMOTE_DISCONNECT 0x4
|
|
#define WTS_SESSION_LOGON 0x5
|
|
#define WTS_SESSION_LOGOFF 0x6
|
|
#define WTS_SESSION_LOCK 0x7
|
|
#define WTS_SESSION_UNLOCK 0x8
|
|
|
|
#include "shelldll.cpp" // for common source
|
|
|
|
//
|
|
// The monitor invisible window class name
|
|
//
|
|
static const TCHAR* const c_pszCmMonWndClass = TEXT("CM Monitor Window");
|
|
|
|
//
|
|
// static class data members
|
|
//
|
|
HINSTANCE CMonitor::m_hInst = NULL;
|
|
CMonitor* CMonitor::m_pThis = NULL;
|
|
|
|
inline CMonitor::CMonitor()
|
|
{
|
|
MYDBGASSERT(m_pThis == NULL);
|
|
m_pThis = this;
|
|
m_hProcess = NULL;
|
|
}
|
|
|
|
inline CMonitor::~CMonitor()
|
|
{
|
|
MYDBGASSERT(m_InternalConnArray.GetSize() == 0);
|
|
MYDBGASSERT(m_ReconnectConnArray.GetSize() == 0);
|
|
MYDBGASSERT(m_hProcess == NULL);
|
|
};
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: WinMain
|
|
//
|
|
// Synopsis: WinMain of the exe
|
|
//
|
|
//
|
|
// History: Created Header 1/22/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
int WINAPI WinMain(HINSTANCE , HINSTANCE hPrevInst, LPSTR pszCmdLine, int iCmdShow)
|
|
{
|
|
|
|
//
|
|
// First Things First, lets initialize the U Api's
|
|
//
|
|
if (!InitUnicodeAPI())
|
|
{
|
|
//
|
|
// Without our U api's we are going no where. Bail. Don't show the message if
|
|
// we are running in the system account since we might be running without a user
|
|
// present.
|
|
//
|
|
|
|
if (!IsLogonAsSystem())
|
|
{
|
|
MessageBox(NULL, TEXT("Cmmon32.exe Initialization Error: Unable to initialize Unicode to ANSI conversion layer, exiting."),
|
|
TEXT("Connection Manager"), MB_OK | MB_ICONERROR);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
DWORD cb = 0;
|
|
HWINSTA hWSta = GetProcessWindowStation();
|
|
HDESK hDesk = GetThreadDesktop(GetCurrentThreadId());
|
|
TCHAR szWinStation[MAX_PATH] = {0};
|
|
TCHAR szDesktopName[MAX_PATH] = {0};
|
|
|
|
GetUserObjectInformation(hDesk, UOI_NAME, szDesktopName, sizeof(szDesktopName), &cb);
|
|
GetUserObjectInformation(hWSta, UOI_NAME, szWinStation, sizeof(szWinStation), &cb);
|
|
CMTRACE(TEXT("====================================================="));
|
|
CMTRACE1(TEXT(" CMMON32.EXE - LOADING - Process ID is 0x%x "), GetCurrentProcessId());
|
|
CMTRACE1(TEXT(" WindowStation Name = %s"), szWinStation);
|
|
CMTRACE1(TEXT(" Desktop Name = %s"), szDesktopName);
|
|
CMTRACE(TEXT("====================================================="));
|
|
|
|
int iRet = CMonitor::WinMain(GetModuleHandleA(NULL), hPrevInst, pszCmdLine, iCmdShow);
|
|
|
|
CMTRACE(TEXT("====================================================="));
|
|
CMTRACE1(TEXT(" CMMON32.EXE - UNLOADING - Process ID is 0x%x "), GetCurrentProcessId());
|
|
CMTRACE(TEXT("====================================================="));
|
|
|
|
if (!UnInitUnicodeAPI())
|
|
{
|
|
CMASSERTMSG(FALSE, TEXT("cmmon32.exe WinMain, UnInitUnicodeAPI failed - we are probably leaking a handle"));
|
|
}
|
|
|
|
//
|
|
// that's what C runtime does to exit.
|
|
//
|
|
ExitProcess(iRet);
|
|
return iRet;
|
|
}
|
|
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::WinMain
|
|
//
|
|
// Synopsis: Called by ::WinMain
|
|
//
|
|
// Arguments: Same as WinMain
|
|
//
|
|
//
|
|
// Returns: int - return value of the process
|
|
//
|
|
// History: Created Header 1/22/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
int CMonitor::WinMain(HINSTANCE hInst, HINSTANCE /*hPrevInst*/, LPSTR /*pszCmdLine*/, int /*iCmdShow*/)
|
|
{
|
|
m_hInst = hInst;
|
|
|
|
//
|
|
// The only Monitor object exist during the life time of WinMain
|
|
//
|
|
CMonitor theMonitor;
|
|
|
|
if (!theMonitor.Initialize())
|
|
{
|
|
CMTRACE(TEXT("theMonitor.Initialize failed"));
|
|
return 0;
|
|
}
|
|
|
|
|
|
MSG msg;
|
|
|
|
//
|
|
// Loop until PostQuitMessage is called,
|
|
// This happens when both connected and reconnecting array are down to 0
|
|
//
|
|
while(GetMessageU(&msg, NULL,0,0))
|
|
{
|
|
TranslateMessage(&msg);
|
|
DispatchMessageU(&msg);
|
|
}
|
|
|
|
theMonitor.Terminate();
|
|
|
|
CMTRACE(TEXT("The Monitor is terminated"));
|
|
|
|
return 0;
|
|
}
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::Initialize
|
|
//
|
|
// Synopsis: Initialize before the monitor start the message loop
|
|
//
|
|
// Arguments: None
|
|
//
|
|
// Returns: BOOL - Whether successfully initialized
|
|
//
|
|
// History: fengsun Created Header 2/17/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
BOOL CMonitor::Initialize()
|
|
{
|
|
DWORD dwProcessId = GetCurrentProcessId();
|
|
m_hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwProcessId);
|
|
MYDBGASSERT(m_hProcess);
|
|
|
|
#ifdef DEBUG
|
|
BOOL fStandAlone = FALSE; // whether cmmon is lauched directly instead of through cmdial
|
|
#endif
|
|
|
|
if (FAILED(m_SharedTable.Open()))
|
|
{
|
|
#ifdef DEBUG
|
|
if ( MessageBox(NULL, TEXT("CMMON32.exe has to be launched by CMDIAL. \nContinue testing?"),
|
|
TEXT("CmMon32 ERROR"), MB_YESNO|MB_ICONQUESTION|MB_SYSTEMMODAL)
|
|
== IDNO)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
fStandAlone = TRUE;
|
|
|
|
if (FAILED(m_SharedTable.Create()))
|
|
#endif
|
|
return FALSE;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
//
|
|
// No other CMMON running
|
|
//
|
|
HWND hwndMonitor;
|
|
m_SharedTable.GetMonitorWnd(&hwndMonitor);
|
|
|
|
MYDBGASSERT(hwndMonitor == NULL);
|
|
|
|
#endif
|
|
|
|
if ((m_hwndMonitor = CreateMonitorWindow()) == NULL)
|
|
{
|
|
CMTRACE(TEXT("CreateMonitorWindow failed"));
|
|
return FALSE;
|
|
}
|
|
|
|
MYVERIFY(SUCCEEDED(m_SharedTable.SetMonitorWnd(m_hwndMonitor)));
|
|
|
|
//
|
|
// Register for user changes (XP onwards only)
|
|
//
|
|
if (OS_NT51)
|
|
{
|
|
HINSTANCE hInstLib = LoadLibrary(TEXT("WTSAPI32.DLL"));
|
|
if (hInstLib)
|
|
{
|
|
BOOL (WINAPI *pfnWTSRegisterSessionNotification)(HWND, DWORD);
|
|
|
|
pfnWTSRegisterSessionNotification = (BOOL(WINAPI *)(HWND, DWORD)) GetProcAddress(hInstLib, "WTSRegisterSessionNotification") ;
|
|
if (pfnWTSRegisterSessionNotification)
|
|
{
|
|
pfnWTSRegisterSessionNotification(m_hwndMonitor, NOTIFY_FOR_THIS_SESSION);
|
|
}
|
|
FreeLibrary(hInstLib);
|
|
}
|
|
else
|
|
{
|
|
MYDBGASSERT(0);
|
|
}
|
|
}
|
|
|
|
//
|
|
// Tell CmDial32.dll, CmMon is ready to receive message
|
|
//
|
|
HANDLE hEvent = OpenEventU(EVENT_ALL_ACCESS, FALSE, c_pszCmMonReadyEvent);
|
|
|
|
#ifdef DEBUG
|
|
if (!fStandAlone && !hEvent)
|
|
{
|
|
DWORD dw = GetLastError();
|
|
CMTRACE1(TEXT("CreateMonitorWindow -- OpenEvent failed %d"), dw);
|
|
|
|
//
|
|
// CmDial have the event opened
|
|
//
|
|
MYDBGASSERT(hEvent);
|
|
|
|
}
|
|
#endif
|
|
|
|
SetEvent(hEvent);
|
|
CloseHandle(hEvent);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::Terminate
|
|
//
|
|
// Synopsis: Cleanup, before exit
|
|
//
|
|
// Arguments: None
|
|
//
|
|
// Returns: Nothing
|
|
//
|
|
// History: Created Header 2/17/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
void CMonitor::Terminate()
|
|
{
|
|
//
|
|
// All the thread should exited at this point
|
|
//
|
|
|
|
if (m_ReconnectConnArray.GetSize() != 0)
|
|
{
|
|
MYDBGASSERT(FALSE);
|
|
}
|
|
|
|
if (m_InternalConnArray.GetSize() != 0)
|
|
{
|
|
MYDBGASSERT(FALSE);
|
|
}
|
|
|
|
//
|
|
// Unregister for user changes (XP onwards only)
|
|
//
|
|
if (OS_NT51)
|
|
{
|
|
HINSTANCE hInstLib = LoadLibrary(TEXT("WTSAPI32.DLL"));
|
|
if (hInstLib)
|
|
{
|
|
BOOL (WINAPI *pfnWTSUnRegisterSessionNotification)(HWND);
|
|
|
|
pfnWTSUnRegisterSessionNotification = (BOOL(WINAPI *)(HWND)) GetProcAddress(hInstLib, "WTSUnRegisterSessionNotification") ;
|
|
if (pfnWTSUnRegisterSessionNotification)
|
|
{
|
|
pfnWTSUnRegisterSessionNotification(m_hwndMonitor);
|
|
}
|
|
FreeLibrary(hInstLib);
|
|
}
|
|
else
|
|
{
|
|
MYDBGASSERT(0);
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
HWND hwndMonitor;
|
|
m_SharedTable.GetMonitorWnd(&hwndMonitor);
|
|
MYDBGASSERT(hwndMonitor == m_hwndMonitor);
|
|
#endif
|
|
|
|
MYVERIFY(SUCCEEDED(m_SharedTable.SetMonitorWnd(NULL)));
|
|
m_SharedTable.Close();
|
|
|
|
CloseHandle(m_hProcess);
|
|
m_hProcess = NULL;
|
|
}
|
|
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::CreateMonitorWindow
|
|
//
|
|
// Synopsis: Register and create the invisible monitor window
|
|
//
|
|
// Arguments: None
|
|
//
|
|
// Returns: HWND - The monitor window handle
|
|
//
|
|
// History: Created Header 2/17/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
HWND CMonitor::CreateMonitorWindow()
|
|
{
|
|
//
|
|
// Register a window class and create the window
|
|
//
|
|
WNDCLASSEX wc;
|
|
ZeroMemory(&wc, sizeof(wc));
|
|
|
|
wc.lpszClassName = c_pszCmMonWndClass;
|
|
wc.lpfnWndProc = MonitorWindowProc;
|
|
wc.cbSize = sizeof(wc);
|
|
|
|
if (!RegisterClassExU( &wc ))
|
|
{
|
|
CMTRACE(TEXT("RegisterClassEx failed"));
|
|
return NULL;
|
|
}
|
|
|
|
return CreateWindowExU(0, c_pszCmMonWndClass, TEXT(""), 0, 0,
|
|
0, 0, 0, 0, 0, m_hInst, 0);
|
|
}
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::HandleFastUserSwitch
|
|
//
|
|
// Synopsis: Does any disconnects required when XP does a fast user switch
|
|
//
|
|
// Arguments: dwAction - a WTS_ value indicating how the user's state has changed
|
|
//
|
|
// Returns: BOOL - success or failure
|
|
//
|
|
// History: 10-Jul-2001 SumitC Created
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
BOOL
|
|
CMonitor::HandleFastUserSwitch(IN DWORD dwAction)
|
|
{
|
|
BOOL bRet = TRUE;
|
|
BOOL fDisconnecting = FALSE;
|
|
|
|
MYDBGASSERT(OS_NT51);
|
|
if (!OS_NT51)
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
if ((WTS_SESSION_LOCK == dwAction) || (WTS_SESSION_UNLOCK == dwAction))
|
|
{
|
|
// don't do anything for lock and unlock
|
|
goto Cleanup;
|
|
}
|
|
|
|
//
|
|
// See if we are disconnecting
|
|
//
|
|
|
|
if ((WTS_CONSOLE_DISCONNECT == dwAction) ||
|
|
(WTS_REMOTE_DISCONNECT == dwAction) ||
|
|
(WTS_SESSION_LOGOFF == dwAction))
|
|
{
|
|
fDisconnecting = TRUE;
|
|
}
|
|
|
|
//
|
|
// If a session is being disconnected, find out if any of the connected
|
|
// connectoids are single-user, and disconnect them if so.
|
|
//
|
|
if (fDisconnecting)
|
|
{
|
|
CMTRACE(TEXT("CMonitor::HandleFastUserSwitch -- see if theres anything to disconnect"));
|
|
|
|
for (INT i = 0; i < m_InternalConnArray.GetSize(); ++i)
|
|
{
|
|
CCmConnection* pConnection = (CCmConnection*)m_InternalConnArray[i];
|
|
ASSERT_VALID(pConnection);
|
|
|
|
if (pConnection && (FALSE == pConnection->m_fGlobalGlobal))
|
|
{
|
|
CMTRACE1(TEXT("CMonitor::HandleFastUserSwitch -- found one, disconnecting %s"), pConnection->GetServiceName());
|
|
MYVERIFY(TRUE == pConnection->OnEndSession(TRUE, FALSE));
|
|
}
|
|
}
|
|
}
|
|
|
|
Cleanup:
|
|
return bRet;
|
|
}
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::MonitorWindowProc
|
|
//
|
|
// Synopsis: The window procedure of the invisible monitor window
|
|
//
|
|
// Arguments: HWND hWnd - Window Proc parameters
|
|
// UINT uMsg -
|
|
// WPARAM wParam -
|
|
// LPARAM lParam -
|
|
//
|
|
// Returns: LRESULT -
|
|
//
|
|
// History: Created Header 2/3/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
LRESULT CALLBACK CMonitor::MonitorWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
|
|
switch (uMsg)
|
|
{
|
|
case WM_COPYDATA:
|
|
{
|
|
ASSERT_VALID(m_pThis);
|
|
COPYDATASTRUCT* pCopyData = (COPYDATASTRUCT*) lParam;
|
|
MYDBGASSERT(pCopyData);
|
|
|
|
switch(pCopyData->dwData)
|
|
{
|
|
case CMMON_CONNECTED_INFO:
|
|
MYDBGASSERT(pCopyData->cbData >= sizeof(CM_CONNECTED_INFO));
|
|
m_pThis->OnConnected((CM_CONNECTED_INFO*)pCopyData->lpData);
|
|
return TRUE;
|
|
|
|
case CMMON_HANGUP_INFO:
|
|
MYDBGASSERT(pCopyData->cbData == sizeof(CM_HANGUP_INFO));
|
|
m_pThis->OnHangup((CM_HANGUP_INFO*)pCopyData->lpData);
|
|
return TRUE;
|
|
|
|
default:
|
|
MYDBGASSERT(FALSE);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case WM_REMOVE_CONNECTION:
|
|
ASSERT_VALID(m_pThis);
|
|
m_pThis->OnRemoveConnection((DWORD)wParam, (CCmConnection*)lParam);
|
|
return TRUE;
|
|
break;
|
|
|
|
case WM_QUERYENDSESSION:
|
|
CMTRACE(TEXT("CMonitor::MonitorWindowProc -- Got WM_QUERYENDSESSION message"));
|
|
return m_pThis->OnQueryEndSession((BOOL)lParam);
|
|
break;
|
|
|
|
case WM_ENDSESSION:
|
|
CMTRACE(TEXT("CMonitor::MonitorWindowProc -- Got WM_ENDSESSION message"));
|
|
break;
|
|
|
|
case WM_WTSSESSION_CHANGE:
|
|
CMTRACE1(TEXT("CMonitor::MonitorWindowProc -- Got WM_WTSSESSION_CHANGE message with %d"), wParam);
|
|
if (OS_NT51)
|
|
{
|
|
MYVERIFY(m_pThis->HandleFastUserSwitch((DWORD)wParam));
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return DefWindowProcU(hWnd, uMsg, wParam, lParam);
|
|
}
|
|
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::OnConnected
|
|
//
|
|
// Synopsis: Called upon CMMON_CONNECTED_INFO received from cmdial
|
|
//
|
|
// Arguments: const CONNECTED_INFO* pConnectedInfo - Info from CmDial
|
|
//
|
|
// Returns: Nothing
|
|
//
|
|
// History: fengsun Created Header 2/3/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
void CMonitor::OnConnected(const CM_CONNECTED_INFO* pConnectedInfo)
|
|
{
|
|
ASSERT_VALID(this);
|
|
|
|
CMTRACE(TEXT("CMonitor::OnConnected"));
|
|
|
|
RestoreWorkingSet();
|
|
|
|
MYDBGASSERT(pConnectedInfo);
|
|
|
|
//
|
|
// Not in the connected table
|
|
//
|
|
MYDBGASSERT(!LookupConnection(m_InternalConnArray, pConnectedInfo->szEntryName));
|
|
|
|
// ASSERT in the shared table
|
|
CM_CONNECTION ConnectionEntry;
|
|
|
|
if (FAILED(m_SharedTable.GetEntry(pConnectedInfo->szEntryName, &ConnectionEntry)))
|
|
{
|
|
MYDBGASSERT(!"CMonitor::OnConnected: Can not find the connection");
|
|
return;
|
|
}
|
|
|
|
CCmConnection* pConnection = new CCmConnection(pConnectedInfo, &ConnectionEntry);
|
|
MYDBGASSERT(pConnection);
|
|
|
|
if (pConnection)
|
|
{
|
|
m_InternalConnArray.Add(pConnection);
|
|
|
|
pConnection->StartConnectionThread();
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::OnHangup
|
|
//
|
|
// Synopsis: Upon CMMON_HANGUP_INFO request from CMDIAL
|
|
// Post the request to the thread
|
|
//
|
|
// Arguments: const CM_HANGUP_INFO* pHangupInfo - Info from CmDial
|
|
//
|
|
// Returns: Nothing
|
|
//
|
|
// History: fengsun Created Header 2/12/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
void CMonitor::OnHangup(const CM_HANGUP_INFO* pHangupInfo)
|
|
{
|
|
ASSERT_VALID(this);
|
|
RestoreWorkingSet();
|
|
|
|
MYDBGASSERT(pHangupInfo);
|
|
MYDBGASSERT(pHangupInfo->szEntryName[0]);
|
|
|
|
//
|
|
// Upon hangup request from CMDIAL.DLL
|
|
// Look up the InternalConnArray for the connection
|
|
//
|
|
|
|
CCmConnection* pConnection = LookupConnection(m_InternalConnArray,pHangupInfo->szEntryName);
|
|
|
|
//
|
|
// CMDIAL post this message regardless whether there is a connection
|
|
//
|
|
|
|
if (!pConnection)
|
|
{
|
|
return;
|
|
}
|
|
|
|
pConnection->PostHangupMsg();
|
|
//
|
|
// The connection thread will post a REMOVE_CONNECTION message back when finished
|
|
//
|
|
}
|
|
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::LookupConnection
|
|
//
|
|
// Synopsis: Look up a connection from connection array by service name
|
|
//
|
|
// Arguments: const CPtrArray& ConnArray - The array to lookup
|
|
// const TCHAR* pServiceName - The servicename of the connection
|
|
//
|
|
// Returns: CCmConnection* - the connection found or NULL
|
|
//
|
|
// History: fengsun Created Header 2/17/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
CCmConnection* CMonitor::LookupConnection(const CPtrArray& ConnArray, const TCHAR* pServiceName) const
|
|
{
|
|
for (int i =0; i<ConnArray.GetSize(); i++)
|
|
{
|
|
CCmConnection* pConnection = (CCmConnection*)ConnArray[i];
|
|
|
|
ASSERT_VALID(pConnection);
|
|
|
|
if (lstrcmpiU(pServiceName, pConnection->GetServiceName()) == 0)
|
|
{
|
|
return pConnection;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::LookupConnection
|
|
//
|
|
// Synopsis: Look up a connection from connection array by connection pointer
|
|
//
|
|
// Arguments: const CPtrArray& ConnArray - The array to lookup
|
|
// const CCmConnection* pConnection - The connection pointer
|
|
//
|
|
// Returns: int - the index to the array, or -1 if not found
|
|
//
|
|
// History: Created Header 2/17/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
int CMonitor::LookupConnection(const CPtrArray& ConnArray, const CCmConnection* pConnection) const
|
|
{
|
|
ASSERT_VALID(pConnection);
|
|
|
|
for (int i =0; i<ConnArray.GetSize(); i++)
|
|
{
|
|
if ((CCmConnection*)ConnArray[i] == pConnection )
|
|
{
|
|
return i;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::RemoveConnection
|
|
//
|
|
// Synopsis: Called by connection thread to remove a connection from
|
|
// connected/reconnecting array
|
|
//
|
|
// Arguments: CCmConnection* pConnection - The connection to remove
|
|
// BOOL fClearTable - Whter to remove the connection from shared table
|
|
//
|
|
// Returns: Nothing
|
|
//
|
|
// History: fengsun Created Header 2/23/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
void CMonitor::RemoveConnection(CCmConnection* pConnection, BOOL fClearTable)
|
|
{
|
|
if (fClearTable)
|
|
{
|
|
//
|
|
// Called in Connection thread. Operation on m_SharedTable is multi-thread safe
|
|
//
|
|
m_pThis->m_SharedTable.ClearEntry(pConnection->GetServiceName());
|
|
}
|
|
|
|
//
|
|
// The internal connection list is not safe to be accessed by multiple thread
|
|
// Message will be processed in monitor thread OnRemoveConnection
|
|
//
|
|
PostMessageU(GetMonitorWindow(), WM_REMOVE_CONNECTION,
|
|
REMOVE_CONNECTION, (LPARAM)pConnection);
|
|
}
|
|
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::MoveToReconnectingConn
|
|
//
|
|
// Synopsis: Called by connection thread. Move a connection from connected
|
|
// array to reconnecting array
|
|
//
|
|
// Arguments: CCmConnection* pConnection - The connectio to move
|
|
//
|
|
// Returns: Nothing
|
|
//
|
|
// History: fengsun Created Header 2/23/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
void CMonitor::MoveToReconnectingConn(CCmConnection* pConnection)
|
|
{
|
|
//
|
|
// Message will be processed in OnRemoveConnection
|
|
// Note: SendMessage to another thread can cause deadlock, if the reveiving
|
|
// thread also SendMessage back to this thread.
|
|
// Use SendMessageTimeout if that is the case
|
|
//
|
|
PostMessageU(GetMonitorWindow(), WM_REMOVE_CONNECTION,
|
|
MOVE_TO_RECONNECTING, (LPARAM)pConnection);
|
|
}
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::OnRemoveConnection
|
|
//
|
|
// Synopsis: Called whether a remove connection request is received from
|
|
// connection thread.
|
|
// Remove the connection from connected array or reconnecting array
|
|
// Delete it from the shared connectio table
|
|
// If both array are down to 0, exit cmmon
|
|
//
|
|
// Arguments: DWORD dwRequestType -
|
|
// REMOVE_CONNECTION remove the connection from either array
|
|
// MOVE_TO_RECONNECTING move the connection from connected array
|
|
// to reconnecting array
|
|
//
|
|
// CCmConnection* pConnection - The connetion to remove or move
|
|
//
|
|
// Returns: Nothing
|
|
//
|
|
// History: fengsun Created Header 2/3/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
void CMonitor::OnRemoveConnection(DWORD dwRequestType, CCmConnection* pConnection)
|
|
{
|
|
ASSERT_VALID(this);
|
|
ASSERT_VALID(pConnection);
|
|
|
|
switch(dwRequestType)
|
|
{
|
|
case REMOVE_CONNECTION:
|
|
{
|
|
int nIndex = LookupConnection(m_InternalConnArray, pConnection);
|
|
|
|
if (nIndex != -1)
|
|
{
|
|
//
|
|
// Remove the entry from connected array
|
|
//
|
|
m_InternalConnArray.RemoveAt(nIndex);
|
|
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// Remove the entry from reconnecting array
|
|
//
|
|
nIndex = LookupConnection(m_ReconnectConnArray, pConnection);
|
|
MYDBGASSERT(nIndex != -1);
|
|
|
|
if (nIndex == -1)
|
|
{
|
|
break;
|
|
}
|
|
|
|
m_ReconnectConnArray.RemoveAt(nIndex);
|
|
}
|
|
|
|
delete pConnection;
|
|
}
|
|
|
|
break;
|
|
|
|
case MOVE_TO_RECONNECTING:
|
|
{
|
|
//
|
|
// Move from connected array to reconnecting array
|
|
//
|
|
int nIndex = LookupConnection(m_InternalConnArray, pConnection);
|
|
MYDBGASSERT(nIndex != -1);
|
|
|
|
if (nIndex == -1)
|
|
{
|
|
break;
|
|
}
|
|
|
|
m_InternalConnArray.RemoveAt(nIndex);
|
|
m_ReconnectConnArray.Add(pConnection);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
MYDBGASSERT(FALSE);
|
|
break;
|
|
}
|
|
|
|
//
|
|
// If there are no connections, quit CmMon
|
|
//
|
|
if (m_ReconnectConnArray.GetSize() == 0 && m_InternalConnArray.GetSize() == 0)
|
|
{
|
|
PostQuitMessage(0);
|
|
}
|
|
}
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::OnQueryEndSession
|
|
//
|
|
// Synopsis: This message processes the WM_QUERYENDSESSION message by passing
|
|
// it to all the connection threads.
|
|
//
|
|
// Arguments: Nothing
|
|
//
|
|
// Returns: TRUE if successful, FALSE otherwise
|
|
//
|
|
// History: quintinb Created 3/18/99
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
BOOL CMonitor::OnQueryEndSession(BOOL fLogOff) const
|
|
{
|
|
|
|
BOOL bOkayToEndSession = TRUE;
|
|
BOOL bReturn;
|
|
|
|
for (int i = 0; i < m_InternalConnArray.GetSize(); i++)
|
|
{
|
|
ASSERT_VALID((CCmConnection*)m_InternalConnArray[i]);
|
|
|
|
bReturn = ((CCmConnection*)m_InternalConnArray[i])->OnEndSession(TRUE, fLogOff); // fEndSession == TRUE
|
|
|
|
bOkayToEndSession = bOkayToEndSession && bReturn;
|
|
}
|
|
|
|
return bOkayToEndSession;
|
|
}
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CMonitor::AssertValid
|
|
//
|
|
// Synopsis: Helper function for debug. Assert the object is in a valid state
|
|
//
|
|
// Arguments: None
|
|
//
|
|
// Returns: Nothing
|
|
//
|
|
// History: Created Header 2/17/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
void CMonitor::AssertValid() const
|
|
{
|
|
MYDBGASSERT(IsWindow(m_hwndMonitor));
|
|
MYDBGASSERT(m_pThis == this);
|
|
|
|
ASSERT_VALID(&m_InternalConnArray);
|
|
ASSERT_VALID(&m_ReconnectConnArray);
|
|
}
|
|
#endif
|