514 lines
14 KiB
C++
514 lines
14 KiB
C++
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/*++
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Copyright (c) 1998-2000 Microsoft Corporation
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Module Name :
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IniFile.cpp
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Abstract:
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Test harness for LKRhash
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Author:
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George V. Reilly (GeorgeRe) 06-Jan-1998
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Environment:
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Win32 - User Mode
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Project:
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Internet Information Server RunTime Library
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Revision History:
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--*/
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#include "precomp.hxx"
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#include "WordHash.h"
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#include "IniFile.h"
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enum INI_TYPE {
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INI_WORD = 1,
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INI_DWORD,
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INI_DOUBLE,
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INI_STRING,
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INI_BOOL,
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};
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typedef struct _ParseOptions {
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int m_nFieldOffset;
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const char* m_pszName;
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unsigned m_cchName;
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INI_TYPE m_type;
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DWORD_PTR m_default;
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} ParseOptions;
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#define INI_ENTRY(_member, _name, _type, _default) \
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{ \
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FIELD_OFFSET(CIniFileSettings, _member), \
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_name, \
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sizeof(_name)-1, \
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_type, \
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(DWORD_PTR) _default, \
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} \
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static const ParseOptions g_po[] = {
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INI_ENTRY(m_tszDataFile, "DataFile", INI_STRING, _TEXT("??")),
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INI_ENTRY(m_nMaxKeys, "MaxKeys", INI_DWORD, MAXKEYS),
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INI_ENTRY(m_dblHighLoad, "MaxLoadFactor", INI_DOUBLE, LK_DFLT_MAXLOAD),
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INI_ENTRY(m_nInitSize, "InitSize", INI_DWORD, LK_DFLT_INITSIZE),
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INI_ENTRY(m_nSubTables, "NumSubTables", INI_DWORD,LK_DFLT_NUM_SUBTBLS),
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INI_ENTRY(m_nLookupFreq, "LookupFrequency",INI_DWORD, 5),
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INI_ENTRY(m_nMinThreads, "MinThreads", INI_DWORD, 1),
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INI_ENTRY(m_nMaxThreads, "MaxThreads", INI_DWORD, 4),
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INI_ENTRY(m_nRounds, "NumRounds", INI_DWORD, 1),
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INI_ENTRY(m_nSeed, "RandomSeed", INI_DWORD, 1234),
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INI_ENTRY(m_fCaseInsensitive,"CaseInsensitive",INI_BOOL, FALSE),
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INI_ENTRY(m_fMemCmp, "MemCmp", INI_BOOL, FALSE),
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INI_ENTRY(m_nLastChars, "NumLastChars", INI_DWORD, 0),
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INI_ENTRY(m_wTableSpin, "TableLockSpinCount",INI_WORD, LOCK_DEFAULT_SPINS),
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INI_ENTRY(m_wBucketSpin, "BucketLockSpinCount",INI_WORD,LOCK_DEFAULT_SPINS),
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INI_ENTRY(m_dblSpinAdjFctr,"SpinAdjustmentFactor",INI_DOUBLE, 1),
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INI_ENTRY(m_fTestIterators,"TestIterators", INI_BOOL, FALSE),
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INI_ENTRY(m_nInsertIfNotFound, "InsertIfNotFound",INI_DWORD, 0),
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INI_ENTRY(m_nFindKeyCopy, "FindKeyCopy", INI_DWORD, 0),
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INI_ENTRY(m_fNonPagedAllocs,"NonPagedAllocs", INI_BOOL, TRUE),
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INI_ENTRY(m_fRefTrace, "RefTrace", INI_BOOL, FALSE),
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{-1} // last entry
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};
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void
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CIniFileSettings::Dump(
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LPCTSTR ptszProlog,
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LPCTSTR ptszEpilog) const
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{
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TCHAR tsz[50];
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_tprintf(_TEXT("%s\n"), ptszProlog);
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_tprintf(_TEXT("IniFile=\"%s\"\n"),
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m_tszIniFile);
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_tprintf(_TEXT("DataFile=\"%s\". %s keys.\n"),
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m_tszDataFile, CommaNumber(m_nMaxKeys, tsz));
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_tprintf(_TEXT("Max load = %.1f, initsize = %d, %d subtables.\n"),
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m_dblHighLoad, m_nInitSize, m_nSubTables);
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_tprintf(_TEXT("Lookup freq = %d, %d-%d threads, %d round%s.\n"),
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m_nLookupFreq, m_nMinThreads, m_nMaxThreads,
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m_nRounds, (m_nRounds==1 ? "" : "s"));
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_tprintf(_TEXT("Seed=%d, CaseInsensitive=%d, MemCmp=%d, LastChars=%d\n"),
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m_nSeed, m_fCaseInsensitive, m_fMemCmp, m_nLastChars);
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_tprintf(_TEXT("Spin Count: Table = %hd, Bucket = %hd, AdjFactor=%.1f\n"),
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m_wTableSpin, m_wBucketSpin, m_dblSpinAdjFctr);
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_tprintf(_TEXT("TestIterators=%d, InsertIfNotFound=%d, FindKeyCopy=%d\n"),
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m_fTestIterators, m_nInsertIfNotFound, m_nFindKeyCopy);
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_tprintf(_TEXT("NonPagedAllocs=%d, RefTrace=%d\n"),
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m_fNonPagedAllocs, m_fRefTrace);
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_tprintf(_TEXT("%s\n"), ptszEpilog);
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}
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#if defined(IRTLDEBUG)
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# define DUMP_INIFILE(pifs, Pro, Epi) pifs->Dump(Pro, Epi)
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#else
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# define DUMP_INIFILE(pifs, Pro, Epi) ((void) 0)
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#endif
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DWORD
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ReadFileIntoBuffer(
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LPCTSTR ptszFile,
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PBYTE pbBuffer,
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DWORD cbBuffer)
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{
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#ifndef LKRHASH_KERNEL_MODE
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HANDLE hFile =
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CreateFile(
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ptszFile,
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GENERIC_READ,
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0,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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if (hFile == INVALID_HANDLE_VALUE)
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return 0;
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DWORD cbRead = 0, cbFileSizeLow, cbFileSizeHigh;
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cbFileSizeLow = GetFileSize(hFile, &cbFileSizeHigh);
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bool fBadFile =
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(cbFileSizeHigh != 0
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|| cbFileSizeLow > cbBuffer
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|| !ReadFile(hFile, pbBuffer, cbFileSizeLow, &cbRead, NULL));
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CloseHandle(hFile);
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return fBadFile ? 0 : cbRead;
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#else
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return 0;
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#endif // !LKRHASH_KERNEL_MODE
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}
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// Do a case-insensitive match of first `cchStr' chars of ptszBuffer
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// against ptszStr. Strings assumed to be alphanumeric
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bool
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StrMatch(
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LPCSTR pszBuffer,
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LPCSTR pszStr,
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unsigned cchStr)
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{
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LPCSTR psz1 = pszBuffer;
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LPCSTR psz2 = pszStr;
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unsigned i, j;
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bool fMatch = true;
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for (i = 0; i < cchStr; ++i)
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{
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IRTLASSERT(isalnum(*psz1) && isalnum(*psz2));
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if (((*psz1++ ^ *psz2++) & 0xDF) != 0)
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{
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fMatch = false;
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break;
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}
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}
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IRTLTRACE0("\tStrMatch: \"");
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for (j = 0; j < i + !fMatch; ++j)
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IRTLTRACE1("%hc", pszBuffer[j]);
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IRTLTRACE0(fMatch ? "\" == \"" : "\" != \"");
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for (j = 0; j < i + !fMatch; ++j)
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IRTLTRACE1("%hc", pszStr[j]);
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IRTLTRACE0("\"\n");
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return fMatch;
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}
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bool
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GetNum(
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char*& rpch,
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int& rn)
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{
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int fNegative = ('-' == *rpch);
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rn = 0;
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if (fNegative)
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++rpch;
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else if (!('0' <= *rpch && *rpch <= '9'))
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return false;
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while ('0' <= *rpch && *rpch <= '9')
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rn = rn * 10 + (*rpch++ - '0');
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if (fNegative)
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rn = -rn;
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return true;
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}
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bool
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GetDouble(
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char*& rpch,
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double& rdbl)
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{
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rdbl = 0;
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int n;
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bool fValidInt = GetNum(rpch, n);
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if (fValidInt)
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{
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rdbl = n;
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// BUGBUG: ignore fractional part, if any
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if ('.' == *rpch)
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{
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++rpch;
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GetNum(rpch, n);
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}
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}
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return fValidInt;
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}
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bool
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GetString(
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char*& rpch,
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char* pszOutput,
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unsigned cchOutput)
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{
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// TODO: handle quoted strings and trailing blanks
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bool fGotChars = false;
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while ('\0' != *rpch && '\r' != *rpch && '\n' != *rpch )
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{
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fGotChars = true;
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if (cchOutput-- > 0)
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*pszOutput++ = *rpch++;
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else
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++rpch;
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}
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if (cchOutput > 0)
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*pszOutput = '\0';
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return fGotChars;
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}
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// TODO: break the dependency upon g_po.
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int
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CIniFileSettings::ParseIniFile(
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LPCSTR pszIniFile)
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{
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strncpy(m_tszIniFile, pszIniFile, _MAX_PATH);
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int i, iMaxIndex = -1;
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int cMembers = 0;
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for (i = 0; ; ++i)
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{
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if (g_po[i].m_nFieldOffset < 0)
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{
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iMaxIndex = i;
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break;
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}
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PBYTE pbMember = g_po[i].m_nFieldOffset + ((BYTE*) this);
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// Initialize the members of `this' with their default values
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switch (g_po[i].m_type)
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{
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case INI_WORD:
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* (WORD*) pbMember = (WORD) g_po[i].m_default;
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break;
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case INI_DWORD:
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* (DWORD*) pbMember = (DWORD) g_po[i].m_default;
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break;
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case INI_DOUBLE:
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* (double*) pbMember = (float) g_po[i].m_default;
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break;
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case INI_STRING:
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strcpy((char*) pbMember, (const char*) g_po[i].m_default);
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break;
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case INI_BOOL:
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* (bool*) pbMember = (bool) (g_po[i].m_default != 0);
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break;
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default:
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IRTLASSERT(! "invalid INI_TYPE");
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}
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}
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DUMP_INIFILE(this, "Before", "");
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BYTE abBuffer[2049];
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DWORD cbRead = ReadFileIntoBuffer(m_tszIniFile, abBuffer,
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sizeof(abBuffer)-1);
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if (cbRead == 0)
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{
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_tprintf(_TEXT("Can't open IniFile `%s'.\n"), m_tszIniFile) ;
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return 0;
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}
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abBuffer[cbRead] = '\0';
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bool fInSection = false, fSkipLine = false;
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bool fDone = false;
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const char szSectionName[] = "HashTest";
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unsigned cchSectionName = strlen(szSectionName);
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char* pch = (char*) abBuffer;
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char* pszEOB = (char*) (abBuffer + cbRead);
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// parse the in-memory buffer
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while ('\0' != *pch)
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{
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while (' ' == *pch || '\r' == *pch
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|| '\n' == *pch || '\t' == *pch)
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++pch;
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if ('\0' == *pch)
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break;
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IRTLTRACE(_TEXT("Line starts with '%hc%hc%hc%hc'\n"),
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pch[0], pch[1], pch[2], pch[3]);
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// Is this a section name?
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if ('[' == *pch)
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{
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fInSection = false;
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++pch;
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while (' ' == *pch || '\t' == *pch)
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++pch;
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if (pch + cchSectionName < pszEOB
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&& StrMatch(pch, szSectionName, cchSectionName))
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{
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pch += cchSectionName;
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while (' ' == *pch || '\t' == *pch)
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++pch;
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if (']' == *pch)
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{
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++pch;
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fInSection = true;
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}
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}
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else
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fSkipLine = true;
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continue;
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}
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// skip comments and entire lines if we're not in the right section
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if (fSkipLine || ';' == *pch || !fInSection)
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{
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// skip to end of line
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while ('\0' != *pch && '\r' != *pch && '\n' != *pch)
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{
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IRTLTRACE1("%hc", *pch);
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++pch;
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}
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IRTLTRACE0("\n");
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fSkipLine = false;
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continue;
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|
|
}
|
||
|
|
|
||
|
|
fSkipLine = true;
|
||
|
|
|
||
|
|
// try to match name=value
|
||
|
|
for (i = 0; i < iMaxIndex; ++i)
|
||
|
|
{
|
||
|
|
IRTLASSERT(isalnum(*pch));
|
||
|
|
if (pch + g_po[i].m_cchName >= pszEOB
|
||
|
|
|| !StrMatch(pch, g_po[i].m_pszName, g_po[i].m_cchName))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
pch += g_po[i].m_cchName;
|
||
|
|
while (' ' == *pch || '\t' == *pch)
|
||
|
|
++pch;
|
||
|
|
if ('=' != *pch)
|
||
|
|
{
|
||
|
|
IRTLTRACE1("'=' not seen after <%hs>\n", g_po[i].m_pszName);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
++pch;
|
||
|
|
while (' ' == *pch || '\t' == *pch)
|
||
|
|
++pch;
|
||
|
|
|
||
|
|
PBYTE pbMember = g_po[i].m_nFieldOffset + ((BYTE*) this);
|
||
|
|
int n;
|
||
|
|
char sz[_MAX_PATH];
|
||
|
|
double dbl;
|
||
|
|
|
||
|
|
IRTLTRACE1("<%hs>=", g_po[i].m_pszName);
|
||
|
|
|
||
|
|
switch (g_po[i].m_type)
|
||
|
|
{
|
||
|
|
case INI_WORD:
|
||
|
|
if (GetNum(pch, n))
|
||
|
|
{
|
||
|
|
IRTLTRACE1("%hu\n", (WORD) n);
|
||
|
|
* (WORD*) pbMember = (WORD) n;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
IRTLTRACE("bad word\n");
|
||
|
|
break;
|
||
|
|
case INI_DWORD:
|
||
|
|
if (GetNum(pch, n))
|
||
|
|
{
|
||
|
|
IRTLTRACE1("%u\n", (DWORD) n);
|
||
|
|
* (DWORD*) pbMember = (DWORD) n;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
IRTLTRACE("bad dword\n");
|
||
|
|
break;
|
||
|
|
case INI_DOUBLE:
|
||
|
|
if (GetDouble(pch, dbl))
|
||
|
|
{
|
||
|
|
IRTLTRACE1("%.1f\n", dbl);
|
||
|
|
* (double*) pbMember = dbl;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
IRTLTRACE("bad double\n");
|
||
|
|
break;
|
||
|
|
case INI_STRING:
|
||
|
|
if (GetString(pch, sz, sizeof(sz)/sizeof(sz[0])))
|
||
|
|
{
|
||
|
|
IRTLTRACE1("%hs\n", sz);
|
||
|
|
strcpy((char*) pbMember, sz);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
IRTLTRACE("bad string\n");
|
||
|
|
break;
|
||
|
|
case INI_BOOL:
|
||
|
|
if (GetNum(pch, n))
|
||
|
|
{
|
||
|
|
IRTLTRACE1("%d\n", n);
|
||
|
|
* (bool*) pbMember = (n != 0);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
IRTLTRACE("bad bool\n");
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
IRTLASSERT(! "invalid INI_TYPE");
|
||
|
|
}
|
||
|
|
|
||
|
|
++cMembers;
|
||
|
|
fSkipLine = false;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
DUMP_INIFILE(this, "Parsed", "---");
|
||
|
|
|
||
|
|
return cMembers;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void
|
||
|
|
CIniFileSettings::ReadIniFile(
|
||
|
|
LPCTSTR ptszIniFile)
|
||
|
|
{
|
||
|
|
ParseIniFile(ptszIniFile);
|
||
|
|
|
||
|
|
m_nMaxKeys = min(max(1, m_nMaxKeys), MAXKEYS);
|
||
|
|
m_dblHighLoad = max(1, m_dblHighLoad);
|
||
|
|
m_nMinThreads = max(1, m_nMinThreads);
|
||
|
|
m_nMaxThreads = min(MAX_THREADS, max(1, m_nMaxThreads));
|
||
|
|
|
||
|
|
// If we're not using a real lock, then we're not threadsafe
|
||
|
|
if (CWordHash::TableLock::LockType() == LOCK_FAKELOCK
|
||
|
|
|| CWordHash::BucketLock::LockType() == LOCK_FAKELOCK)
|
||
|
|
m_nMinThreads = m_nMaxThreads = 1;
|
||
|
|
|
||
|
|
m_nRounds = max(1, m_nRounds);
|
||
|
|
CWordHash::sm_fCaseInsensitive = m_fCaseInsensitive;
|
||
|
|
CWordHash::sm_fMemCmp = m_fMemCmp;
|
||
|
|
CWordHash::sm_nLastChars = m_nLastChars;
|
||
|
|
CWordHash::sm_fNonPagedAllocs = m_fNonPagedAllocs;
|
||
|
|
CWordHash::sm_fRefTrace = m_fRefTrace;
|
||
|
|
|
||
|
|
#ifdef LOCK_DEFAULT_SPIN_IMPLEMENTATION
|
||
|
|
# ifdef LKRHASH_GLOBAL_LOCK
|
||
|
|
CWordHash::GlobalLock::SetDefaultSpinAdjustmentFactor(m_dblSpinAdjFctr);
|
||
|
|
# endif
|
||
|
|
CWordHash::TableLock::SetDefaultSpinAdjustmentFactor(m_dblSpinAdjFctr);
|
||
|
|
CWordHash::BucketLock::SetDefaultSpinAdjustmentFactor(m_dblSpinAdjFctr);
|
||
|
|
#endif // LOCK_DEFAULT_SPIN_IMPLEMENTATION
|
||
|
|
|
||
|
|
if (CWordHash::TableLock::Recursion() != LOCK_RECURSIVE
|
||
|
|
|| CWordHash::BucketLock::LockType() != LOCK_RECURSIVE)
|
||
|
|
m_nInsertIfNotFound = 0;
|
||
|
|
}
|