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116 lines
3.1 KiB
116 lines
3.1 KiB
//+----------------------------------------------------------------------------
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//
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// File: cmtiming.h
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//
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// Module: CMDIAL32.DLL and CMMGR32.EXE
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//
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// Synopsis: Header file for timing functions.
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//
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// Copyright (c) 1998 Microsoft Corporation
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//
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// Author: nickball Created 04/28/98
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//
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//+----------------------------------------------------------------------------
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#ifndef _CM_TIMING_INC
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#define _CM_TIMING_INC
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//
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// Add the following to the sources file of the target module to activate timing macros.
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//
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// C_DEFINES = -DCM_TIMING_ON
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//
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// NOTE: Never check in a sources file with this flag defined
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//
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#ifdef CM_TIMING_ON // For timing test only
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#define CM_SET_TIMING_INTERVAL(x) SetTimingInterval(x)
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//
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// Defintions
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//
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#define MAX_TIMING_INTERVALS 50
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#define CM_TIMING_TABLE_NAME "CM TIMING TABLE"
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//
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// Custom types for table
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//
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typedef struct Cm_Timing_Interval
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{
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TCHAR szName[MAX_PATH]; // Name of timing interval
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DWORD dwTicks; // TickCount
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} CM_TIMING_INTERVAL, *LPCM_TIMING_INTERVAL;
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typedef struct Cm_Timing_Table
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{
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int iNext; // Next available entry
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CM_TIMING_INTERVAL Intervals[MAX_TIMING_INTERVALS]; // a list of intervals
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} CM_TIMING_TABLE, * LPCM_TIMING_TABLE;
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//+----------------------------------------------------------------------------
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//
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// Function: SetTimingInterval
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//
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// Synopsis: A simple wrapper to encapsulate the process of updating the
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// timing table with an interval entry.
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//
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// Arguments: char *szIntervalName - The optional name of the entry, the entry number is used if NULL
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//
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// Returns: void - Nothing
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//
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// History: nickball 4/7/98 Created
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//
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//+----------------------------------------------------------------------------
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inline void SetTimingInterval(char *szIntervalName)
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{
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HANDLE hMap = OpenFileMapping(FILE_MAP_READ | FILE_MAP_WRITE, FALSE, CM_TIMING_TABLE_NAME);
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if (hMap)
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{
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//
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// File mapping opened successfully, map a view of it.
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//
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LPCM_TIMING_TABLE pTable = (LPCM_TIMING_TABLE) MapViewOfFile(hMap,
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FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, 0);
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if (pTable)
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{
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if (pTable->iNext < MAX_TIMING_INTERVALS)
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{
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//
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// Update the next available entry
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//
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if (szIntervalName)
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{
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lstrcpy(pTable->Intervals[pTable->iNext].szName, szIntervalName);
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}
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else
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{
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wsprintf(pTable->Intervals[pTable->iNext].szName, "(%d)", pTable->iNext);
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}
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pTable->Intervals[pTable->iNext].dwTicks = GetTickCount();
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pTable->iNext++;
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}
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UnmapViewOfFile(pTable);
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}
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CloseHandle(hMap);
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}
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}
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#else // CM_TIMING_ON
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#define CM_SET_TIMING_INTERVAL(x)
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#endif
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#endif // _CM_TIMING_INC
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