Leaked source code of windows server 2003
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/*++ Copyright (c) 1996-1997 Microsoft Corporation --*/
/*++
MACROS.H
useful macros I didn't want to declare in every file.
first incarnation in EXTENDED: DAVIDCHR 11/4/1996
next incarnation in k5 compat: DAVIDCHR 1/8/1997
modified to be more portable: DAVIDCHR 4/8/1997
--*/
/* Note that all of these macros use "HopefullyUnusedVariableName"
for a local variable to prevent the unintentional "capture" of
a passed parameter by the same name. Hopefully, we'll never use
a variable by that name. If so, the variable can be made even
more longer and less convenient to use. :-) */
#define EQUALS TRUE
#define NOT_EQUALS FALSE
/* BREAK_AND_LOG_IF is for use with actual test results. When you
absolutely must have the results logged... */
#define BREAK_AND_LOG_IF( variable, loglevel, data, message, label ) { \
BOOL HopefullyUnusedVariableName; \
unsigned long HopefullyUnusedVariableName_SaveData; \
\
HopefullyUnusedVariableName = (variable); \
HopefullyUnusedVariableName_SaveData = data; \
\
if (HopefullyUnusedVariableName) { \
if ( HopefullyUnusedVariableName_SaveData == 0 ) { \
HopefullyUnusedVariableName_SaveData = \
HopefullyUnusedVariableName; \
} \
LOGMSG( loglevel, HopefullyUnusedVariableName_SaveData, message );\
goto label; \
}}
#define BREAK_EXPR( variable, operator, test, message, label ) BREAK_HOOK_EXPR( variable, operator, test, "%hs", message, label)
#ifdef USE_NTLOG /* the other macros MAY or MAY NOT use the logger */
#ifndef BREAK_LOG_LEVEL
#define BREAK_LOG_LEVEL LOGLEVEL_INFO
#endif
#define BREAK_HOOK_EXPR( variable, operator, test, formatmessage, hook, label ) {\
BOOL HopefullyUnusedVariableName;\
unsigned long HopefullyUnusedVariableName_Save;\
CHAR HopefullyUnusedVariableName_Buffer[1024];\
/* unsigned long HopefullyUnusedVariableName_szBuffer = 1024; */\
\
HopefullyUnusedVariableName_Save = (ULONG) (variable);\
HopefullyUnusedVariableName = (operator == EQUALS) ? \
(HopefullyUnusedVariableName_Save == (ULONG) test) :\
(HopefullyUnusedVariableName_Save != (ULONG) test);\
\
if (HopefullyUnusedVariableName) {\
sprintf( HopefullyUnusedVariableName_Buffer, formatmessage, hook );\
LOGMSG(BREAK_LOG_LEVEL, HopefullyUnusedVariableName_Save, HopefullyUnusedVariableName_Buffer );\
goto label;\
}}
#else
#define BREAK_HOOK_EXPR( variable, operator, test, formatmessage, hook, label ) {\
BOOL HopefullyUnusedVariableName;\
ULONG HopefullyUnusedVariableName_Save;\
\
HopefullyUnusedVariableName_Save = (ULONG) (variable);\
HopefullyUnusedVariableName = (operator == EQUALS) ? \
(HopefullyUnusedVariableName_Save == (ULONG) test) :\
(HopefullyUnusedVariableName_Save != (ULONG) test);\
\
if (HopefullyUnusedVariableName) {\
fprintf(stderr, "\n** 0x%x \t ", HopefullyUnusedVariableName_Save );\
fprintf(stderr, formatmessage, hook);\
fprintf(stderr, "\n");\
goto label;\
}}
#endif
#define BREAK_IF( variable, message, label ) BREAK_EXPR((variable), NOT_EQUALS, 0L, message, label)
#define BREAK_EQ( variable, equals, message, label ) \
BREAK_EXPR(variable, EQUALS, equals, message, label )
#define WSA_BREAK( variable, invalidator, message, label ) \
BREAK_HOOK_EXPR( variable, EQUALS, invalidator, \
message "\n\tWSAGetLastError() returns (dec) %d.",\
WSAGetLastError(), label )
#define NT_BREAK_ON BREAK_IF
/*++ MYALLOC
used
whom: variable to put the memory into.
what: what kind of memory it points to.. the integral denomination of
memory we are allocating (char for a string, int for an int *...)
howmany: integral size of "what"s we are allocating (see below)
withwhat: routine to use in allocation (eg malloc, LocalAlloc...).
this routine must return NULL on failure to allocate.
EXAMPLE: I want to allocate a string of 15 characters with malloc
{
PCHAR mystring;
if (! MYALLOC( mystring, CHAR, 15, malloc )) {
fprintf(stderr, "failed to allocate!");
exit(0);
}
}
--*/
#define MYALLOC( whom, what, howmany, withwhat ) \
( ( (whom) = (what *) (withwhat)( (howmany) * sizeof(what)) ) != NULL )
/* ONEALLOC is a special case of MYALLOC, where howmany is 1 */
#define ONEALLOC( whom, what, withwhat ) MYALLOC( whom, what, 1, withwhat)