116 lines
2.5 KiB
C++
116 lines
2.5 KiB
C++
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//
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// Debug.CPP
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//
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// Copyright (c) 1997-1998 Microsoft Corporation
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//
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// @doc INTERNAL
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//
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// @module Debug | Debug services for DMusic.DLL
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//
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#include <windows.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include "debug.h"
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#ifdef DBG
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#define MODULE "DMLOADER"
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// @globalv Section in WIN.INI for all debug settings
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const char szDebugSection[] = "debug";
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// @globalv Key in WIN.INI for our debug level. All messages with
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// a level of this number or lower will be displayed.
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const char szDebugKey[] = MODULE;
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// @globalv Key in WIN.INI [debug] section which determines if assert calls
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// DebugBreak or not
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//
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const char szAssertBreak[] = "AssertBreak";
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// @globalv Prefix for all debug outputs
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//
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const char szDebugPrefix[] = MODULE ": ";
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// @globalv The current debug level.
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static int giDebugLevel;
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// @globalv Do asserts break?
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static BOOL gfAssertBreak;
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// @func Sets the debug level from WIN.INI
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//
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void DebugInit(
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void)
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{
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giDebugLevel = GetProfileInt(szDebugSection, szDebugKey, 0);
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gfAssertBreak = GetProfileInt(szDebugSection, szAssertBreak, 0);
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// Nepotism at its finest
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DebugTrace(-1, "Debug level is %d\n", giDebugLevel);
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}
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// @func Send a debug trace out.
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//
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// @comm Any message with a level less than or equal to the current debug
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// level will be displayed using the OutputDebugString API. This means either
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// the IDE Debug window if the app is running in that context or WDEB if
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// it's running.
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//
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static BOOL fNeedPrefix = TRUE;
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void DebugTrace(
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int iDebugLevel, // @parm The debug level of this message
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LPSTR pstrFormat, // @parm A printf style format string
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...) // @parm | ... | Variable paramters based on <p pstrFormat>
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{
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char sz[512];
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if (iDebugLevel != -1 && iDebugLevel > giDebugLevel)
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{
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return;
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}
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va_list va;
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va_start(va, pstrFormat);
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vsprintf(sz, pstrFormat, va);
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va_end(va);
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if (fNeedPrefix)
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{
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OutputDebugString(szDebugPrefix);
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}
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OutputDebugString(sz);
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// Let them construct multiple piece trace outs w/o
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// prefixing each one
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//
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fNeedPrefix = FALSE;
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for (;*pstrFormat && !fNeedPrefix; ++pstrFormat)
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{
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if (*pstrFormat == '\n')
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{
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fNeedPrefix = TRUE;
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}
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}
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}
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void DebugAssert(
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LPSTR szExp,
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LPSTR szFile,
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ULONG ulLine)
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{
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DebugTrace(0, "ASSERT: \"%s\" %s@%lu\n", szExp, szFile, ulLine);
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if (gfAssertBreak)
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{
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DebugBreak();
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}
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}
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#endif
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