home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
PC Press 1997 July
/
Sezamfile97_2.iso
/
windows
/
program
/
activex
/
axtsamp.exe
/
TSBRANCH.EXE
/
LOCSERVE
/
SERVER.CPP
< prev
next >
Wrap
C/C++ Source or Header
|
1996-12-29
|
11KB
|
381 lines
/*+==========================================================================
File: SERVER.CPP
Summary: Implementation file for the CServer server-related utility
C++ object. This object encapsulates the server's internal
control of global server object and lock counts.
For a comprehensive tutorial code tour of this module's
contents and offerings see the tutorial LOCSERVE.HTM file.
For more specific technical details on the internal workings
see the comments dispersed throughout the module's source code.
Classes: CServer.
Functions:
Origin: 11-14-95: atrent - Editor-inheritance from DLLSERVE.CPP in
the DLLSERVE Tutorial Code Sample.
----------------------------------------------------------------------------
This file is part of the Microsoft ActiveX Tutorial Code Samples.
Copyright (C) Microsoft Corporation, 1997. All rights reserved.
This source code is intended only as a supplement to Microsoft
Development Tools and/or on-line documentation. See these other
materials for detailed information regarding Microsoft code samples.
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
==========================================================================+*/
/*---------------------------------------------------------------------------
We include WINDOWS.H for all Win32 applications.
We include OLE2.H because we will be calling the COM/OLE Libraries.
We include APPUTIL.H because we will be building this DLL using
the convenient Virtual Window and Dialog classes and other
utility functions in the APPUTIL Library (ie, APPUTIL.LIB).
We include MICARS.H and CARGUIDS.H for the common car-related Interface
class, GUID, and CLSID specifications.
We include SERVER.H for the object class declarations for the
C++ CServer server control object.
We include FACTORY.H because it has the necessary internal class factory
declarations for this component server.
---------------------------------------------------------------------------*/
#include <windows.h>
#include <ole2.h>
#include <apputil.h>
#include <micars.h>
#include <carguids.h>
#include "server.h"
#include "factory.h"
/*---------------------------------------------------------------------------
Implementation the internal CServer C++ object. Used to encapsulate
some server data and the methods for Lock and Object count incrementing
and decrementing.
---------------------------------------------------------------------------*/
/*M+M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M
Method: CServer::CServer
Summary: CServer Constructor.
Args: void
Modifies: .
Returns: void
M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M-M*/
CServer::CServer(void)
{
// Zero the Object and Lock counts for this attached process.
m_cObjects = 0;
m_cLocks = 0;
// Zero the cached handles.
m_hInstServer = NULL;
m_hWndServer = NULL;
// Zero the Factory references.
m_pCFCar = NULL;
m_pCFUtilityCar = NULL;
m_pCFCruiseCar = NULL;
m_dwCFCar = 0;
m_dwCFUtilityCar = 0;
m_dwCFCruiseCar = 0;
return;
}
/*M+M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M
Method: CServer::~CServer
Summary: CServer Destructor.
Args: void
Modifies: .
Returns: void
M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M-M*/
CServer::~CServer(void)
{
return;
}
/*M+M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M
Method: CServer::ObjectsUp
Summary: Increment the Server's living Object count.
Args: void
Modifies: .
Returns: void
M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M-M*/
void CServer::ObjectsUp(void)
{
InterlockedIncrement((PLONG) &m_cObjects);
LOGF1("L: CServer::ObjectsUp. New cObjects=%i.", m_cObjects);
return;
}
/*M+M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M
Method: CServer::ObjectsDown
Summary: Decrement the Server's living object count.
Args: void
Modifies: .
Returns: void
M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M-M*/
void CServer::ObjectsDown(void)
{
InterlockedDecrement((PLONG) &m_cObjects);
LOGF1("L: CServer::ObjectsDown. New cObjects=%i.", m_cObjects);
// If no more living objects and no locks then shut the server down.
if (0L == m_cObjects && 0L == m_cLocks && IsWindow(m_hWndServer))
{
LOG("L: CServer::ObjectsDown. Closing down LOCSERVE server.");
// Post a message to this local server's message queue requesting
// a close of the application.
PostMessage(m_hWndServer, WM_CLOSE, 0, 0L);
}
return;
}
/*M+M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M
Method: CServer::Lock
Summary: Increment the Server's Lock count.
Args: void
Modifies: .
Returns: void
M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M-M*/
void CServer::Lock(void)
{
InterlockedIncrement((PLONG) &m_cLocks);
LOGF1("L: CServer::Lock. New cLocks=%i.", m_cLocks);
return;
}
/*M+M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M
Method: CServer::Unlock
Summary: Decrement the Server's Lock count.
Args: void
Modifies: .
Returns: void
M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M-M*/
void CServer::Unlock(void)
{
InterlockedDecrement((PLONG) &m_cLocks);
LOGF1("L: CServer::Unlock. New cLocks=%i.", m_cLocks);
// Use ObjectsDown to force a server shutdown if this unlock warrants it.
InterlockedIncrement((PLONG) &m_cObjects);
ObjectsDown();
return;
}
/*M+M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M
Method: CServer::OpenFactories
Summary: Create and register all of this server's class factories.
Args: void
Modifies: .
Returns: BOOL
TRUE if success; FALSE if not
M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M-M*/
BOOL CServer::OpenFactories(void)
{
BOOL bOk = FALSE;
HRESULT hr;
LOG("L: CServer::OpenFactories. Begin.");
// Build and register the LocCar factory.
m_pCFCar = new CFCar(NULL, this);
if (NULL != m_pCFCar)
{
// AddRef this cached pointer to the Class Factory.
m_pCFCar->AddRef();
// Now register this class factory with COM.
hr = CoRegisterClassObject(
CLSID_LocCar,
m_pCFCar,
CLSCTX_LOCAL_SERVER,
REGCLS_MULTIPLEUSE,
&m_dwCFCar);
bOk = SUCCEEDED(hr);
if (!bOk)
{
LOGF1("L: CServer::OpenFactories. CFCar failed. hr=0x%X.", hr);
// If can't register factory then clean up for server exit.
m_pCFCar->Release();
DELETE_POINTER(m_pCFCar);
}
}
else
bOk = FALSE;
// Build and register the LocUtilityCar factory.
if (bOk)
{
m_pCFUtilityCar = new CFUtilityCar(NULL, this);
if (NULL != m_pCFUtilityCar)
{
// AddRef this cached pointer to the Class Factory.
m_pCFUtilityCar->AddRef();
// Now register this class factory with COM.
hr = CoRegisterClassObject(
CLSID_LocUtilityCar,
m_pCFUtilityCar,
CLSCTX_LOCAL_SERVER,
REGCLS_MULTIPLEUSE,
&m_dwCFUtilityCar);
bOk = SUCCEEDED(hr);
if (!bOk)
{
LOGF1("L: CServer::OpenFactories. CFUtilityCar failed. hr=0x%X.", hr);
// If can't register factory then clean up for server exit.
m_pCFUtilityCar->Release();
DELETE_POINTER(m_pCFUtilityCar);
}
}
else
bOk = FALSE;
}
// Build and register the LocCruiseCar factory.
if (bOk)
{
m_pCFCruiseCar = new CFCruiseCar(NULL, this);
if (NULL != m_pCFCruiseCar)
{
// AddRef this cached pointer to the Class Factory.
m_pCFCruiseCar->AddRef();
// Now register this class factory with COM.
hr = CoRegisterClassObject(
CLSID_LocCruiseCar,
m_pCFCruiseCar,
CLSCTX_LOCAL_SERVER,
REGCLS_MULTIPLEUSE,
&m_dwCFCruiseCar);
bOk = SUCCEEDED(hr);
if (!bOk)
{
LOGF1("L: CServer::OpenFactories. CFCruiseCar failed. hr=0x%X.", hr);
// If can't register factory then clean up for server exit.
m_pCFCruiseCar->Release();
DELETE_POINTER(m_pCFCruiseCar);
}
}
else
bOk = FALSE;
}
LOG("L: CServer::OpenFactories. End.");
return bOk;
}
/*M+M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M+++M
Method: CServer::CloseFactories
Summary: Revoke (ie, unregister) and delete all the server's class
factories.
Args: void
Modifies: .
Returns: BOOL
TRUE if success; FALSE if not
M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M---M-M*/
BOOL CServer::CloseFactories(void)
{
BOOL bOk = TRUE;
HRESULT hr;
LOG("L: CServer::CloseFactories. Begin.");
// Unregister the LocCar class factory with COM.
if (0 != m_dwCFCar)
{
LOG("L: CServer::CloseFactories. Revoke CFCar.");
hr = CoRevokeClassObject(m_dwCFCar);
if (FAILED(hr))
bOk = FALSE;
}
// Unregister the LocUtilityCar class factory with COM.
if (0 != m_dwCFCar)
{
LOG("L: CServer::CloseFactories. Revoke CFUtilityCar.");
hr = CoRevokeClassObject(m_dwCFUtilityCar);
if (FAILED(hr))
bOk = FALSE;
}
// Unregister the LocCruiseCar class factory with COM.
if (0 != m_dwCFCar)
{
LOG("L: CServer::CloseFactories. Revoke CFCruiseCar.");
hr = CoRevokeClassObject(m_dwCFCruiseCar);
if (FAILED(hr))
bOk = FALSE;
}
// Release any and all of the Class Factory interface pointers.
LOG("L: CServer::CloseFactories. Release all factory interfaces.");
RELEASE_INTERFACE(m_pCFCar);
RELEASE_INTERFACE(m_pCFUtilityCar);
RELEASE_INTERFACE(m_pCFCruiseCar);
LOG("L: CServer::CloseFactories. End.");
return bOk;
}
// =============================== END ======================================