Viewing file:  snmp_assert.h (3.74 KB) -rw-r--r--
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#ifndef SNMP_ASSERT_H
#define SNMP_ASSERT_H
#ifdef NETSNMP_USE_ASSERT
# include <assert.h>
#else
# include <net-snmp/library/snmp_logging.h>
#endif
/*
* MACROs don't need extern "C"
*/
/*
* define __STRING for systems (*cough* sun *cough*) that don't have it
*/
#ifndef __STRING
# if defined(__STDC__) || defined(_MSC_VER)
# define __STRING(x) #x
# else
# define __STRING(x) "x"
# endif /* __STDC__ */
#endif /* __STRING */
/*
* always use assert if requested
*/
#ifdef NETSNMP_USE_ASSERT
/* void netsnmp_assert( int );*/
# define netsnmp_assert(x) assert( x )
# define netsnmp_assert_or_return(x, y) assert( x )
# define netsnmp_assert_or_msgreturn(x, y, z) assert( x )
#else
/*
* if asserts weren't requested, just log, unless NETSNMP_NO_DEBUGGING specified
*/
# ifndef NETSNMP_NO_DEBUGGING
# ifdef NETSNMP_FUNCTION
# define NETSNMP_FUNC_FMT " %s()\n"
# define NETSNMP_FUNC_PARAM NETSNMP_FUNCTION
# else
# define NETSNMP_FUNC_FMT "%c"
# define NETSNMP_FUNC_PARAM '\n'
# endif
#
# define netsnmp_assert(x) do { \
if ( x ) \
; \
else \
snmp_log(LOG_ERR, \
"netsnmp_assert %s failed %s:%d" NETSNMP_FUNC_FMT, \
__STRING(x),__FILE__,__LINE__, \
NETSNMP_FUNC_PARAM); \
}while(0)
# define netsnmp_assert_or_return(x, y) do { \
if ( x ) \
; \
else { \
snmp_log(LOG_ERR, \
"netsnmp_assert %s failed %s:%d" NETSNMP_FUNC_FMT, \
__STRING(x),__FILE__,__LINE__, \
NETSNMP_FUNC_PARAM); \
return y; \
} \
}while(0)
# define netsnmp_assert_or_msgreturn(x, y, z) do { \
if ( x ) \
; \
else { \
snmp_log(LOG_ERR, \
"netsnmp_assert %s failed %s:%d" NETSNMP_FUNC_FMT, \
__STRING(x),__FILE__,__LINE__, \
NETSNMP_FUNC_PARAM); \
snmp_log(LOG_ERR, y); \
return z; \
} \
}while(0)
# else /* NO DEBUGGING */
# define netsnmp_assert(x)
# define netsnmp_assert_or_return(x, y) do { \
if ( x ) \
; \
else { \
return y; \
} \
}while(0)
# define netsnmp_assert_or_msgreturn(x, y, z) do { \
if ( x ) \
; \
else { \
return z; \
} \
}while(0)
# endif /* NO DEBUGGING */
#endif /* not NETSNMP_USE_ASSERT */
#define netsnmp_static_assert(x) \
do { switch(0) { case (x): case 0: ; } } while(0)
/*
* EXPERIMENTAL macros. May be removed without warning in future
* releases. Use at your own risk
*
* The series of uppercase letters at or near the end of these macros give
* an indication of what they do. The letters used are:
*
* L : log a message
* RN : return NULL
* RE : return a specific hardcoded error appropriate for the condition
* RV : return user specified value
*
*/
#define netsnmp_malloc_check_LRN(ptr) \
netsnmp_assert_or_return( (ptr) != NULL, NULL)
#define netsnmp_malloc_check_LRE(ptr) \
netsnmp_assert_or_return( (ptr) != NULL, SNMPERR_MALLOC)
#define netsnmp_malloc_check_LRV(ptr, val) \
netsnmp_assert_or_return( (ptr) != NULL, val)
#define netsnmp_require_ptr_LRV( ptr, val ) \
netsnmp_assert_or_return( (ptr) != NULL, val)
#endif /* SNMP_ASSERT_H */
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