ReGameDLL_CS/regamedll/public/tier0/dbg.h

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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//
//===========================================================================//
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#pragma once
#include "basetypes.h"
#include <math.h>
#include <stdio.h>
#include <stdarg.h>
#define DBG_DEFAULT_LEVEL 0
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// Usage model for the Dbg library
//
// 1. Spew.
//
// Spew can be used in a static and a dynamic mode. The static
// mode allows us to display assertions and other messages either only
// in debug builds, or in non-release builds. The dynamic mode allows us to
// turn on and off certain spew messages while the application is running.
//
// Static Spew messages:
//
// Assertions are used to detect and warn about invalid states
// Spews are used to display a particular status/warning message.
//
// To use an assertion, use
//
// Assert((f == 5));
// AssertMsg((f == 5), ("F needs to be %d here!\n", 5));
// AssertFunc((f == 5), BadFunc());
// AssertEquals(f, 5);
// AssertFloatEquals(f, 5.0f, 1e-3);
//
// The first will simply report that an assertion failed on a particular
// code file and line. The second version will display a print-f formatted message
// along with the file and line, the third will display a generic message and
// will also cause the function BadFunc to be executed, and the last two
// will report an error if f is not equal to 5 (the last one asserts within
// a particular tolerance).
//
// To use a warning, use
//
// Warning("Oh I feel so %s all over\n", "yummy");
//
// Warning will do its magic in only Debug builds. To perform spew in *all*
// builds, use RelWarning.
//
// Three other spew types, Msg, Log, and Error, are compiled into all builds.
// These error types do *not* need two sets of parenthesis.
//
// Msg("Isn't this exciting %d?", 5);
// Error("I'm just thrilled");
//
// Spew output
//
// The output of the spew system can be redirected to an externally-supplied
// function which is responsible for outputting the spew. By default, the
// spew is simply printed using printf.
//
// To redirect spew output, call SpewOutput.
//
// SpewOutputFunc(OutputFunc);
//
// This will cause OutputFunc to be called every time a spew message is
// generated. OutputFunc will be passed a spew type and a message to print.
// It must return a value indicating whether the debugger should be invoked,
// whether the program should continue running, or whether the program
// should abort.
//
// 2. Code activation
//
// To cause code to be run only in debug builds, use DBG_CODE:
// An example is below.
//
// DBG_CODE(
// {
// int x = 5;
// ++x;
// }
// );
//
// 3. Breaking into the debugger.
//
// To cause an unconditional break into the debugger in debug builds only, use DBG_BREAK
//
// DBG_BREAK();
//
// You can force a break in any build (release or debug) using
//
// DebuggerBreak();
// Various types of spew messages
// I'm sure you're asking yourself why SPEW_ instead of DBG_ ?
// It's because DBG_ is used all over the place in windows.h
// For example, DBG_CONTINUE is defined. Feh.
enum SpewType_t
{
SPEW_MESSAGE = 0,
SPEW_WARNING,
SPEW_ASSERT,
SPEW_ERROR,
SPEW_LOG,
SPEW_TYPE_COUNT
};
enum SpewRetval_t
{
SPEW_DEBUGGER = 0,
SPEW_CONTINUE,
SPEW_ABORT
};
// Type of externally defined function used to display debug spew
typedef SpewRetval_t (*SpewOutputFunc_t)(SpewType_t spewType, int level, const char *pMsg);
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// Used to redirect spew output
void SpewOutputFunc(SpewOutputFunc_t func);
// Used ot get the current spew output function
SpewOutputFunc_t GetSpewOutputFunc();
// Used to display messages, should never be called directly.
SpewRetval_t _SpewAssert(const char *pFile, int line, int level, const char *pMsg, ...);
void _ExitOnFatalAssert();
bool _SpewAssertDialog();
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inline bool ShouldUseNewAssertDialog()
{
#if defined(DBGFLAG_ASSERTDLG)
return true; // always show an assert dialog
#else
return Plat_IsInDebugSession(); // only show an assert dialog if the process is being debugged
#endif // DBGFLAG_ASSERTDLG
}
#define _AssertMsg(_exp, _msg, _executeExp, _bFatal) \
do { \
if (!(_exp)) \
{ \
SpewRetval_t ret = _SpewAssert(__FILE__, __LINE__, DBG_DEFAULT_LEVEL, _msg); \
if (ret == SPEW_DEBUGGER) \
{ \
if (!ShouldUseNewAssertDialog() || _SpewAssertDialog()) \
DebuggerBreakIfDebugging(); \
} \
_executeExp; \
if (_bFatal) \
_ExitOnFatalAssert(); \
} \
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} while (0)
#define _AssertMsgWarn(_exp, _msg) \
if (!(_exp)) \
{ \
Warning("%s (%d) : " _msg, __FILE__, __LINE__); \
} \
#define _AssertMsgOnce(_exp, _msg, _bFatal) \
do { \
static bool fAsserted = false; \
if (!fAsserted && !(_exp)) \
{ \
fAsserted = true; \
_AssertMsg(_exp, _msg, (fAsserted = true), _bFatal); \
} \
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} while (0)
// Spew macros...
// AssertFatal macros
// AssertFatal is used to detect an unrecoverable error condition.
// If enabled, it may display an assert dialog (if DBGFLAG_ASSERTDLG is turned on or running under the debugger),
// and always terminates the application
#if defined(DBGFLAG_ASSERTFATAL)
#define AssertWarn(_exp) _AssertMsgWarn(_exp, "Assertion Failed: " #_exp)
#define AssertFatal(_exp) _AssertMsg(_exp, "Assertion Failed: " #_exp, ((void)0), true)
#define AssertFatalOnce(_exp) _AssertMsgOnce(_exp, "Assertion Failed: " #_exp, true)
#define AssertFatalMsg(_exp, _msg) _AssertMsg(_exp, _msg, ((void)0), true)
#define AssertFatalMsgOnce(_exp, _msg) _AssertMsgOnce(_exp, _msg, true)
#define AssertFatalFunc(_exp, _f) _AssertMsg(_exp, "Assertion Failed: " #_exp, _f, true)
#define AssertFatalEquals(_exp, _expectedValue) AssertFatalMsg2((_exp) == (_expectedValue), "Expected %d but got %d!", (_expectedValue), (_exp))
#define AssertFatalFloatEquals(_exp, _expectedValue, _tol) AssertFatalMsg2(fabs((_exp) - (_expectedValue)) <= (_tol), "Expected %f but got %f!", (_expectedValue), (_exp))
#define VerifyFatal(_exp) AssertFatal(_exp)
#define VerifyEqualsFatal(_exp, _expectedValue) AssertFatalEquals(_exp, _expectedValue)
#if defined(_DEBUG)
#define DbgVerifyFatal(_exp) AssertFatal(_exp)
#else
#define DbgVerifyFatal(_exp) ((void)0)
#endif
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#define AssertFatalMsg1(_exp, _msg, a1) AssertFatalMsg(_exp, CDbgFmtMsg(_msg, a1).ToString())
#define AssertFatalMsg2(_exp, _msg, a1, a2) AssertFatalMsg(_exp, CDbgFmtMsg(_msg, a1, a2).ToString())
#define AssertFatalMsg3(_exp, _msg, a1, a2, a3) AssertFatalMsg(_exp, CDbgFmtMsg(_msg, a1, a2, a3).ToString())
#define AssertFatalMsg4(_exp, _msg, a1, a2, a3, a4) AssertFatalMsg(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4).ToString())
#define AssertFatalMsg5(_exp, _msg, a1, a2, a3, a4, a5) AssertFatalMsg(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5).ToString())
#define AssertFatalMsg6(_exp, _msg, a1, a2, a3, a4, a5, a6) AssertFatalMsg(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5, a6).ToString())
#define AssertFatalMsg7(_exp, _msg, a1, a2, a3, a4, a5, a6, a7) AssertFatalMsg(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5, a6, a7).ToString())
#define AssertFatalMsg8(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8) AssertFatalMsg(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5, a6, a7, a8).ToString())
#define AssertFatalMsg9(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8, a9) AssertFatalMsg(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5, a6, a7, a8, a9).ToString())
#else // DBGFLAG_ASSERTFATAL
#define AssertWarn(_exp) ((void)0)
#define AssertFatal(_exp) ((void)0)
#define AssertFatalOnce(_exp) ((void)0)
#define AssertFatalMsg(_exp, _msg) ((void)0)
#define AssertFatalMsgOnce(_exp, _msg) ((void)0)
#define AssertFatalFunc(_exp, _f) ((void)0)
#define AssertFatalEquals(_exp, _expectedValue) ((void)0)
#define AssertFatalFloatEquals(_exp, _expectedValue, _tol) ((void)0)
#define VerifyFatal(_exp) (_exp)
#define VerifyEqualsFatal(_exp, _expectedValue) (_exp)
#define DbgVerifyFatal(_exp) (_exp)
#define AssertFatalMsg1(_exp, _msg, a1) ((void)0)
#define AssertFatalMsg2(_exp, _msg, a1, a2) ((void)0)
#define AssertFatalMsg3(_exp, _msg, a1, a2, a3) ((void)0)
#define AssertFatalMsg4(_exp, _msg, a1, a2, a3, a4) ((void)0)
#define AssertFatalMsg5(_exp, _msg, a1, a2, a3, a4, a5) ((void)0)
#define AssertFatalMsg6(_exp, _msg, a1, a2, a3, a4, a5, a6) ((void)0)
#define AssertFatalMsg7(_exp, _msg, a1, a2, a3, a4, a5, a6, a7) ((void)0)
#define AssertFatalMsg8(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8) ((void)0)
#define AssertFatalMsg9(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8, a9) ((void)0)
#endif // DBGFLAG_ASSERTFATAL
#if defined(DBGFLAG_ASSERT)
#define Assert(_exp) _AssertMsg(_exp, "Assertion Failed: " #_exp, ((void)0), false)
#define AssertMsg_(_exp, _msg) _AssertMsg(_exp, _msg, ((void)0), false)
#define AssertOnce(_exp) _AssertMsgOnce(_exp, "Assertion Failed: " #_exp, false)
#define AssertMsgOnce(_exp, _msg) _AssertMsgOnce(_exp, _msg, false)
#define AssertFunc(_exp, _f) _AssertMsg(_exp, "Assertion Failed: " #_exp, _f, false)
#define AssertEquals(_exp, _expectedValue) AssertMsg2((_exp) == (_expectedValue), "Expected %d but got %d!", (_expectedValue), (_exp))
#define AssertFloatEquals(_exp, _expectedValue, _tol) AssertMsg2(fabs((_exp) - (_expectedValue)) <= (_tol), "Expected %f but got %f!", (_expectedValue), (_exp))
#define Verify(_exp) (_exp)
#define VerifyEquals(_exp, _expectedValue) AssertEquals(_exp, _expectedValue)
#if defined(_DEBUG)
#define DbgVerify(_exp) (_exp)
#define DbgAssert(_exp) Assert(_exp)
#define DbgAssertMsg(_exp, _msg) AssertMsg(_exp, _msg)
#define DbgAssertMsg1(_exp, _msg, a1) AssertMsg1(_exp, _msg, a1)
#define DbgAssertMsg2(_exp, _msg, a1, a2) AssertMsg2(_exp, _msg, a1, a2)
#define DbgAssertMsg3(_exp, _msg, a1, a2, a3) AssertMsg3(_exp, _msg, a1, a2, a3)
#define DbgAssertMsg4(_exp, _msg, a1, a2, a3) AssertMsg4(_exp, _msg, a1, a2, a3, a4)
#define DbgAssertMsg5(_exp, _msg, a1, a2, a3) AssertMsg5(_exp, _msg, a1, a2, a3, a4, a5)
#define DbgAssertMsg6(_exp, _msg, a1, a2, a3) AssertMsg6(_exp, _msg, a1, a2, a3, a4, a5, a6)
#define DbgAssertMsg7(_exp, _msg, a1, a2, a3) AssertMsg7(_exp, _msg, a1, a2, a3, a4, a5, a6, a7)
#define DbgAssertMsg8(_exp, _msg, a1, a2, a3) AssertMsg8(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8)
#define DbgAssertMsg9(_exp, _msg, a1, a2, a3) AssertMsg9(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8, a9)
#else
#define DbgVerify(_exp) ((void)0)
#define DbgAssert(_exp) ((void)0)
#define DbgAssertMsg(_exp, _msg) ((void)0)
#define DbgAssertMsg1(_exp, _msg, a1) ((void)0)
#define DbgAssertMsg2(_exp, _msg, a1, a2) ((void)0)
#define DbgAssertMsg3(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg4(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg5(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg6(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg7(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg8(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg9(_exp, _msg, a1, a2, a3) ((void)0)
#endif
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#define AssertMsg(_exp, _msg) AssertMsg_(_exp, _msg)
#define AssertMsg1(_exp, _msg, a1) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1).ToString())
#define AssertMsg2(_exp, _msg, a1, a2) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1, a2).ToString())
#define AssertMsg3(_exp, _msg, a1, a2, a3) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1, a2, a3).ToString())
#define AssertMsg4(_exp, _msg, a1, a2, a3, a4) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4).ToString())
#define AssertMsg5(_exp, _msg, a1, a2, a3, a4, a5) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5).ToString())
#define AssertMsg6(_exp, _msg, a1, a2, a3, a4, a5, a6) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5, a6).ToString())
#define AssertMsg6(_exp, _msg, a1, a2, a3, a4, a5, a6) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5, a6).ToString())
#define AssertMsg7(_exp, _msg, a1, a2, a3, a4, a5, a6, a7) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5, a6, a7).ToString())
#define AssertMsg8(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5, a6, a7, a8).ToString())
#define AssertMsg9(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8, a9) AssertMsg_(_exp, CDbgFmtMsg(_msg, a1, a2, a3, a4, a5, a6, a7, a8, a9).ToString())
#else // DBGFLAG_ASSERT
#define Assert(_exp) ((void)0)
#define AssertMsg(_exp, _msg) ((void)0)
#define AssertOnce(_exp) ((void)0)
#define AssertMsgOnce(_exp, _msg) ((void)0)
#define AssertFunc(_exp, _f) ((void)0)
#define AssertEquals(_exp, _expectedValue) ((void)0)
#define AssertFloatEquals(_exp, _expectedValue, _tol) ((void)0)
#define Verify(_exp) ((void)0)
#define VerifyEquals(_exp, _expectedValue) ((void)0)
#define DbgVerify(_exp) ((void)0)
#define DbgAssert(_exp) ((void)0)
#define DbgAssertMsg(_exp, _msg) ((void)0)
#define DbgAssertMsg1(_exp, _msg, a1) ((void)0)
#define DbgAssertMsg2(_exp, _msg, a1, a2) ((void)0)
#define DbgAssertMsg3(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg4(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg5(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg6(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg7(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg8(_exp, _msg, a1, a2, a3) ((void)0)
#define DbgAssertMsg9(_exp, _msg, a1, a2, a3) ((void)0)
#define AssertMsg1(_exp, _msg, a1) ((void)0)
#define AssertMsg2(_exp, _msg, a1, a2) ((void)0)
#define AssertMsg3(_exp, _msg, a1, a2, a3) ((void)0)
#define AssertMsg4(_exp, _msg, a1, a2, a3, a4) ((void)0)
#define AssertMsg5(_exp, _msg, a1, a2, a3, a4, a5) ((void)0)
#define AssertMsg6(_exp, _msg, a1, a2, a3, a4, a5, a6) ((void)0)
#define AssertMsg6(_exp, _msg, a1, a2, a3, a4, a5, a6) ((void)0)
#define AssertMsg7(_exp, _msg, a1, a2, a3, a4, a5, a6, a7) ((void)0)
#define AssertMsg8(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8) ((void)0)
#define AssertMsg9(_exp, _msg, a1, a2, a3, a4, a5, a6, a7, a8, a9) ((void)0)
#endif // DBGFLAG_ASSERT
// default level versions (level 0)
#define Msg(...) _Msg (0, __VA_ARGS__)
#define Warning(...) _Warning(0, __VA_ARGS__)
#define Log(...) _Log (0, __VA_ARGS__)
// These looked at the "developer" functions
#define DevMsg(...) _Msg (1, __VA_ARGS__)
#define DevWarning(...) _Warning(1, __VA_ARGS__)
#define DevLog(...) _Log (1, __VA_ARGS__)
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// These are always compiled in
void _Msg (int level, const char *pMsg, ...);
void _Warning(int level, const char *pMsg, ...);
void _Log (int level, const char *pMsg, ...);
void Error (const char *pMsg, ...);
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// You can use this macro like a runtime assert macro.
// If the condition fails, then Error is called with the message. This macro is called
// like AssertMsg, where msg must be enclosed in parenthesis:
//
// ErrorIfNot(bCondition, ("a b c %d %d %d", 1, 2, 3));
#define ErrorIfNot(condition, msg) \
if ((condition)) \
; \
else \
{ \
Error msg; \
}
// Code macros, debugger interface
#if defined(_DEBUG)
#define DBG_CODE(_code) if (0) ; else { _code }
#define DBG_DCODE(_g, _l, _code) if (IsSpewActive(_g, _l)) { _code } else {}
#define DBG_BREAK() DebuggerBreakIfDebugging()
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#else // _DEBUG
#define DBG_CODE(_code) ((void)0)
#define DBG_DCODE(_g, _l, _code) ((void)0)
#define DBG_BREAK() ((void)0)
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#endif // _DEBUG
// Templates to assist in validating pointers:
// Have to use these stubs so we don't have to include windows.h here.
void _AssertValidReadPtr(void *ptr, int count = 1);
void _AssertValidWritePtr(void *ptr, int count = 1);
void _AssertValidReadWritePtr(void *ptr, int count = 1);
#if defined(DBGFLAG_ASSERT)
void AssertValidStringPtr(const char *ptr, int maxchar = 0xFFFFFF);
template <class T> inline void AssertValidReadPtr(T *ptr, int count = 1) { _AssertValidReadPtr((void *)ptr, count); }
template <class T> inline void AssertValidWritePtr(T *ptr, int count = 1) { _AssertValidWritePtr((void *)ptr, count); }
template <class T> inline void AssertValidReadWritePtr(T *ptr, int count = 1) { _AssertValidReadWritePtr((void *)ptr, count); }
#define AssertValidThis() AssertValidReadWritePtr(this, sizeof(*this))
#else
#define AssertValidStringPtr(...) ((void)0)
#define AssertValidReadPtr(...) ((void)0)
#define AssertValidWritePtr(...) ((void)0)
#define AssertValidReadWritePtr(...) ((void)0)
#define AssertValidThis() ((void)0)
#endif // #if defined(DBGFLAG_ASSERT)
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// Macro to protect functions that are not reentrant
#if defined(_DEBUG)
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class CReentryGuard
{
public:
CReentryGuard(int *pSemaphore)
: m_pSemaphore(pSemaphore)
{
++(*m_pSemaphore);
}
~CReentryGuard()
{
--(*m_pSemaphore);
}
private:
int *m_pSemaphore;
};
#define ASSERT_NO_REENTRY() \
static int fSemaphore##__LINE__; \
Assert(!fSemaphore##__LINE__); \
CReentryGuard ReentryGuard##__LINE__(&fSemaphore##__LINE__)
#else // _DEBUG
#define ASSERT_NO_REENTRY()
#endif // _DEBUG
// Inline string formatter
class CDbgFmtMsg
{
public:
CDbgFmtMsg(const char *pszFormat, ...)
{
va_list arg_ptr;
va_start(arg_ptr, pszFormat);
_vsnprintf(m_szBuf, sizeof(m_szBuf) - 1, pszFormat, arg_ptr);
va_end(arg_ptr);
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m_szBuf[sizeof(m_szBuf) - 1] = '\0';
}
operator const char *() const
{
return m_szBuf;
}
const char *ToString() const
{
return m_szBuf;
}
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private:
char m_szBuf[256];
};