476 lines
12 KiB
C++
476 lines
12 KiB
C++
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//+-------------------------------------------------------------------
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//
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// File: perfsrv.cxx
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//
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// Contents: This file contins the DLL entry points
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// LibMain
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// DllGetClassObject (Bindings key func)
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// CPerfCF (class factory)
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// CPerf (actual class implementation)
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//
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// Classes: CPerfCF, CPerf
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//
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//
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// History: 30-Nov-92 SarahJ Created
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//
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//---------------------------------------------------------------------
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// Turn off ole Cairol IUnknown
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#define __IUNKNOWN_TMP__
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#include <windows.h>
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#include <ole2.h>
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#include "perfsrv.hxx"
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extern "C" {
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#include <stdio.h>
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#include <stdarg.h>
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#include "wterm.h"
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}
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// These are Cairo symbols. Just define them here so I don't have to rip
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// out or conditionally compile all references to them.
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#define COINIT_MULTITHREADED 0
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#define COINIT_SINGLETHREADED 1
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#define IDM_DEBUG 0x100
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// Count of objects we have instantiated. When we detect 0, we quit.
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ULONG g_cUsage = 0;
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const TCHAR *szAppName = L"Performance Server";
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HWND g_hMain;
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DWORD thread_mode = COINIT_SINGLETHREADED;
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DWORD MainThread;
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DWORD junk;
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void Display(TCHAR *pszFmt, ...)
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{
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va_list marker;
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TCHAR szBuffer[256];
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va_start(marker, pszFmt);
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int iLen = vswprintf(szBuffer, pszFmt, marker);
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va_end(marker);
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// Display the message on terminal window
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SendMessage(g_hMain, WM_PRINT_LINE, iLen, (LONG) szBuffer);
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}
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//+-------------------------------------------------------------------------
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//
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// Function: ProcessMenu
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//
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// Synopsis: Gets called when a WM_COMMAND message received.
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//
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// Arguments: [hWindow] - handle for the window
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// [uiMessage] - message id
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// [wParam] - word parameter
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// [lParam] - long parameter
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//
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// Returns: DefWindowProc result
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//
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// History: 06-Aug-92 Ricksa Created
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//
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//--------------------------------------------------------------------------
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long ProcessMenu(HWND hWindow, UINT uiMessage, WPARAM wParam, LPARAM lParam,
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void *)
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{
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if ((uiMessage == WM_SYSCOMMAND) && (wParam == IDM_DEBUG))
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{
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// Request for a debug breakpoint!
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DebugBreak();
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}
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return (DefWindowProc(hWindow, uiMessage, wParam, lParam));
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}
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//+-------------------------------------------------------------------------
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//
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// Function: ProcessChar
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//
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// Synopsis: Gets called when a WM_CHAR message received.
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//
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// Arguments: [hWindow] - handle for the window
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// [uiMessage] - message id
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// [wParam] - word parameter
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// [lParam] - long parameter
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//
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// Returns: DefWindowProc result
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//
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// History: 06-Aug-92 Ricksa Created
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//
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//--------------------------------------------------------------------------
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long ProcessChar(HWND hWindow, UINT uiMessage, WPARAM wParam, LPARAM lParam,
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void *)
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{
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return (DefWindowProc(hWindow, uiMessage, wParam, lParam));
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}
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//+-------------------------------------------------------------------------
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//
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// Function: ProcessClose
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//
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// Synopsis: Gets called when a NC_DESTROY message received.
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//
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// Arguments: [hWindow] - handle for the window
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// [uiMessage] - message id
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// [wParam] - word parameter
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// [lParam] - long parameter
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//
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// Returns: DefWindowProc result
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//
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// History: 06-Aug-92 Ricksa Created
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//
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//--------------------------------------------------------------------------
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long ProcessClose(
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HWND hWindow,
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UINT uiMessage,
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WPARAM wParam,
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LPARAM lParam,
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void *pvCallBackData)
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{
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// Take default action with message
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return (DefWindowProc(hWindow, uiMessage, wParam, lParam));
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}
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//+-------------------------------------------------------------------
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//
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// Function: WinMain
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//
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// Synopsis: Entry point to DLL - does little else
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//
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// Arguments:
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//
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// Returns: TRUE
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//
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// History: 21-Nov-92 SarahJ Created
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//
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//--------------------------------------------------------------------
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int WINAPI WinMain(
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HINSTANCE hInstance,
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HINSTANCE hPrevInstance,
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char *lpCmdLine,
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int nCmdShow)
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{
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// For windows message
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MSG msg;
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DWORD dwRegistration;
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int len;
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TCHAR buffer[80];
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MainThread = GetCurrentThreadId();
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// Look up the thread mode from the win.ini file.
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#if 0
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len = GetProfileString( L"My Section", L"ThreadMode", L"MultiThreaded", buffer,
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sizeof(buffer) );
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if (lstrcmp(buffer, L"SingleThreaded") == 0)
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thread_mode = COINIT_SINGLETHREADED;
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else if (lstrcmp(buffer, L"MultiThreaded") == 0)
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thread_mode = COINIT_MULTITHREADED;
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#endif
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// Initialize the OLE libraries
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OleInitialize(NULL);
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// Create our class factory
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CPerfCF *perf_cf = new CPerfCF();
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// Register our class with OLE
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CoRegisterClassObject(CLSID_IPerf, perf_cf, CLSCTX_LOCAL_SERVER,
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REGCLS_MULTIPLEUSE, &dwRegistration);
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// CoRegister bumps reference count so we don't have to!
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perf_cf->Release();
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// Register the window class
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TermRegisterClass(hInstance, (LPTSTR) szAppName,
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(LPTSTR) szAppName, (LPTSTR) (1));
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// Create the server window
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TermCreateWindow(
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(LPTSTR) szAppName,
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(LPTSTR) szAppName,
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NULL,
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ProcessMenu,
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ProcessChar,
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ProcessClose,
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SW_SHOWNORMAL,
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&g_hMain,
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NULL);
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// Add debug option to system menu
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HMENU hmenu = GetSystemMenu(g_hMain, FALSE);
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AppendMenu(hmenu, MF_SEPARATOR, 0, NULL);
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AppendMenu(hmenu, MF_STRING | MF_ENABLED, IDM_DEBUG, L"Debug");
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// Print the process id.
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Display( L"Hi, I am %x.\n", GetCurrentProcessId() );
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// Echo the mode.
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if (thread_mode == COINIT_SINGLETHREADED)
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Display(L"Server running in single threaded mode.\n");
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else
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Display(L"Server running in multithreaded mode.\n");
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// Message processing loop
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while (GetMessage (&msg, NULL, 0, 0))
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{
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TranslateMessage (&msg);
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DispatchMessage (&msg);
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}
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// Deregister out class - should release object as well
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CoRevokeClassObject(dwRegistration);
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// Tell OLE we are going away.
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OleUninitialize();
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return (msg.wParam); /* Returns the value from PostQuitMessage */
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}
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/***************************************************************************/
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void CheckThread( TCHAR *name )
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{
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if (thread_mode == COINIT_SINGLETHREADED)
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{
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if (GetCurrentThreadId() != MainThread)
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goto complain;
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}
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else
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{
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if (GetCurrentThreadId() == MainThread)
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goto complain;
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}
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return;
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complain:
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Display( L"*********************************************************\n" );
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Display( L"* *\n" );
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Display( L"* Error *\n" );
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Display( L"* *\n" );
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Display( L"* Method called on wrong thread. *\n" );
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Display( name );
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Display( L"* *\n" );
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Display( L"*********************************************************\n" );
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}
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/***************************************************************************/
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STDMETHODIMP_(ULONG) CPerf::AddRef( THIS )
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{
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CheckThread(L"STDMETHODIMP_(ULONG) CPerf::AddRef( THIS )");
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InterlockedIncrement( (long *) &ref_count );
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return ref_count;
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}
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/***************************************************************************/
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CPerf::CPerf()
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{
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ref_count = 1;
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g_cUsage++;
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}
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/***************************************************************************/
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CPerf::~CPerf()
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{
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if (--g_cUsage == 0)
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{
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SendMessage(g_hMain, WM_TERM_WND, 0, 0);
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}
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}
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/***************************************************************************/
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STDMETHODIMP CPerf::GetAnotherObject( IPerf **another )
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{
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CheckThread(L"STDMETHODIMP CPerf::GetAnotherObject( IPerf **another )");
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*another = NULL;
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CPerf *perf = new FAR CPerf();
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if (perf == NULL)
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{
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return E_OUTOFMEMORY;
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}
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*another = perf;
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return S_OK;
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}
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/***************************************************************************/
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STDMETHODIMP CPerf::HResultCall()
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{
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CheckThread(L"STDMETHODIMP CPerf::HResultCall()");
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return S_OK;
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}
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/***************************************************************************/
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STDMETHODIMP CPerf::NullCall()
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{
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return S_OK;
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}
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/***************************************************************************/
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STDMETHODIMP CPerf::PassMoniker( IMoniker *moniker )
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{
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HRESULT result;
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IBindCtx *bindctx;
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WCHAR *wide_name;
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// Get a bind context.
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result = CreateBindCtx( NULL, &bindctx );
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if (FAILED(result))
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{
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Display( L"Could not create bind context: 0x%x\n", result );
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return E_FAIL;
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}
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// Display name.
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result = moniker->GetDisplayName( bindctx, NULL, &wide_name );
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if (FAILED(result))
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{
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Display( L"Could not get display name: 0x%x\n", result );
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return E_FAIL;
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}
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// Display the name.
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Display( L"The moniker is called <%s>\n", wide_name );
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// Free string.
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CoTaskMemFree( wide_name );
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// Release everything.
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moniker->Release();
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bindctx->Release();
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return S_OK;
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}
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/***************************************************************************/
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STDMETHODIMP CPerf::QueryInterface( THIS_ REFIID riid, LPVOID FAR* ppvObj)
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{
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CheckThread(L"STDMETHODIMP CPerf::QueryInterface( THIS_ REFIID riid, LPVOID FAR* ppvObj)" );
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if (IsEqualIID(riid, IID_IUnknown) ||
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IsEqualIID(riid, IID_IPerf))
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{
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*ppvObj = (IUnknown *) this;
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AddRef();
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return S_OK;
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}
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else
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{
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*ppvObj = NULL;
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return E_NOINTERFACE;
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}
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}
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/***************************************************************************/
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STDMETHODIMP_(ULONG) CPerf::Release( THIS )
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{
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CheckThread(L"STDMETHODIMP_(ULONG) CPerf::Release( THIS )");
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if (InterlockedDecrement( (long*) &ref_count ) == 0)
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{
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delete this;
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return 0;
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}
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else
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return ref_count;
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}
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/***************************************************************************/
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STDMETHODIMP_(ULONG) CPerfCF::AddRef( THIS )
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{
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CheckThread(L"STDMETHODIMP_(ULONG) CPerfCF::AddRef( THIS )");
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InterlockedIncrement( (long *) &ref_count );
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|
|
return ref_count;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/***************************************************************************/
|
|||
|
|
CPerfCF::CPerfCF()
|
|||
|
|
{
|
|||
|
|
ref_count = 1;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/***************************************************************************/
|
|||
|
|
CPerfCF::~CPerfCF()
|
|||
|
|
{
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/***************************************************************************/
|
|||
|
|
STDMETHODIMP CPerfCF::CreateInstance(
|
|||
|
|
IUnknown FAR* pUnkOuter,
|
|||
|
|
REFIID iidInterface,
|
|||
|
|
void FAR* FAR* ppv)
|
|||
|
|
{
|
|||
|
|
CheckThread(L"STDMETHODIMP CPerfCF::CreateInstance(" );
|
|||
|
|
Display(L"CPerfCF::CreateInstance called\n");
|
|||
|
|
|
|||
|
|
*ppv = NULL;
|
|||
|
|
if (pUnkOuter != NULL)
|
|||
|
|
{
|
|||
|
|
return E_FAIL;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!IsEqualIID( iidInterface, IID_IPerf ))
|
|||
|
|
return E_NOINTERFACE;
|
|||
|
|
|
|||
|
|
CPerf *perf = new FAR CPerf();
|
|||
|
|
|
|||
|
|
if (perf == NULL)
|
|||
|
|
{
|
|||
|
|
return E_OUTOFMEMORY;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
*ppv = perf;
|
|||
|
|
return S_OK;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/***************************************************************************/
|
|||
|
|
STDMETHODIMP CPerfCF::LockServer(BOOL fLock)
|
|||
|
|
{
|
|||
|
|
CheckThread( L"STDMETHODIMP CPerfCF::LockServer(BOOL fLock)" );
|
|||
|
|
return E_FAIL;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
/***************************************************************************/
|
|||
|
|
STDMETHODIMP CPerfCF::QueryInterface( THIS_ REFIID riid, LPVOID FAR* ppvObj)
|
|||
|
|
{
|
|||
|
|
CheckThread(L"STDMETHODIMP CPerfCF::QueryInterface( THIS_ REFIID riid, LPVOID FAR* ppvObj)");
|
|||
|
|
if (IsEqualIID(riid, IID_IUnknown) ||
|
|||
|
|
IsEqualIID(riid, IID_IClassFactory))
|
|||
|
|
{
|
|||
|
|
*ppvObj = (IUnknown *) this;
|
|||
|
|
AddRef();
|
|||
|
|
return S_OK;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
*ppvObj = NULL;
|
|||
|
|
return E_NOINTERFACE;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/***************************************************************************/
|
|||
|
|
STDMETHODIMP_(ULONG) CPerfCF::Release( THIS )
|
|||
|
|
{
|
|||
|
|
CheckThread(L"STDMETHODIMP_(ULONG) CPerfCF::Release( THIS )");
|
|||
|
|
if (InterlockedDecrement( (long*) &ref_count ) == 0)
|
|||
|
|
{
|
|||
|
|
delete this;
|
|||
|
|
return 0;
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
return ref_count;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|