110 lines
2.1 KiB
C++
110 lines
2.1 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 2000
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//
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// File: print.cpp
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//
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//--------------------------------------------------------------------------
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#include "pch.h"
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#pragma hdrstop
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#include <stdio.h>
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#include "print.h"
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CPrint::CPrint(
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BOOL bVerbose,
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LPCWSTR pszLogFile // optional. Default is NULL.
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) : m_bVerbose(bVerbose),
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m_pfLog(NULL)
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{
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if (NULL != pszLogFile)
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{
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//
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// Open the log file.
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//
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m_pfLog = _wfopen(pszLogFile, L"w");
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if (NULL == m_pfLog)
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{
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fwprintf(stderr, L"Unable to open log file \"%s\"\n", pszLogFile);
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fprintf(stderr, _strerror("Reason: "));
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fwprintf(stderr, L"Output will go to stderr\n");
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}
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}
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if (NULL == m_pfLog)
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{
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//
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// If no log file is specified or if we failed to open the specified
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// log file, default to stderr.
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//
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m_pfLog = stderr;
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}
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}
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CPrint::~CPrint(
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void
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)
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{
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if (NULL != m_pfLog && stderr != m_pfLog)
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{
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fclose(m_pfLog);
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}
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}
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//
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// Some simple printing functions that handle verbose vs. non-verbose mode.
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// The output is directed at whatever stream m_pfLog refers to.
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// If the user specified a log file on the command line, and that file
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// could be opened, all output goes to that file. Otherwise, it
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// defaults to stderr.
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//
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void
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CPrint::_Print(
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LPCWSTR pszFmt,
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va_list args
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) const
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{
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TraceAssert(NULL != m_pfLog);
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TraceAssert(NULL != pszFmt);
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vfwprintf(m_pfLog, pszFmt, args);
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}
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//
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// Output regardless of "verbose" mode.
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//
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void
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CPrint::PrintAlways(
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LPCWSTR pszFmt,
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...
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) const
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{
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va_list args;
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va_start(args, pszFmt);
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_Print(pszFmt, args);
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va_end(args);
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}
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//
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// Output only in "verbose" mode.
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// Verbose is turned on with the -v cmd line switch.
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//
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void
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CPrint::PrintVerbose(
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LPCWSTR pszFmt,
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...
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) const
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{
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if (m_bVerbose)
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{
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va_list args;
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va_start(args, pszFmt);
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_Print(pszFmt, args);
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va_end(args);
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}
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}
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