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net-snmp 5.7
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00001 #ifndef SNMP_ASSERT_H 00002 #define SNMP_ASSERT_H 00003 00004 #ifdef NETSNMP_USE_ASSERT 00005 # include <assert.h> 00006 #else 00007 # include <net-snmp/library/snmp_logging.h> 00008 #endif 00009 00010 00011 /* 00012 * MACROs don't need extern "C" 00013 */ 00014 00015 /* 00016 * define __STRING for systems (*cough* sun *cough*) that don't have it 00017 */ 00018 #ifndef __STRING 00019 # if defined(__STDC__) || defined(_MSC_VER) 00020 # define __STRING(x) #x 00021 # else 00022 # define __STRING(x) "x" 00023 # endif /* __STDC__ */ 00024 #endif /* __STRING */ 00025 00026 /* 00027 * always use assert if requested 00028 */ 00029 #ifdef NETSNMP_USE_ASSERT 00030 /* void netsnmp_assert( int );*/ 00031 # define netsnmp_assert(x) assert( x ) 00032 # define netsnmp_assert_or_return(x, y) assert( x ) 00033 # define netsnmp_assert_or_msgreturn(x, y, z) assert( x ) 00034 #else 00035 /* 00036 * if asserts weren't requested, just log, unless NETSNMP_NO_DEBUGGING specified 00037 */ 00038 # ifndef NETSNMP_NO_DEBUGGING 00039 # ifdef NETSNMP_FUNCTION 00040 # define NETSNMP_FUNC_FMT " %s()\n" 00041 # define NETSNMP_FUNC_PARAM NETSNMP_FUNCTION 00042 # else 00043 # define NETSNMP_FUNC_FMT "%c" 00044 # define NETSNMP_FUNC_PARAM '\n' 00045 # endif 00046 # 00047 # define netsnmp_assert(x) do { \ 00048 if ( x ) \ 00049 ; \ 00050 else \ 00051 snmp_log(LOG_ERR, \ 00052 "netsnmp_assert %s failed %s:%d" NETSNMP_FUNC_FMT, \ 00053 __STRING(x),__FILE__,__LINE__, \ 00054 NETSNMP_FUNC_PARAM); \ 00055 }while(0) 00056 # define netsnmp_assert_or_return(x, y) do { \ 00057 if ( x ) \ 00058 ; \ 00059 else { \ 00060 snmp_log(LOG_ERR, \ 00061 "netsnmp_assert %s failed %s:%d" NETSNMP_FUNC_FMT, \ 00062 __STRING(x),__FILE__,__LINE__, \ 00063 NETSNMP_FUNC_PARAM); \ 00064 return y; \ 00065 } \ 00066 }while(0) 00067 # define netsnmp_assert_or_msgreturn(x, y, z) do { \ 00068 if ( x ) \ 00069 ; \ 00070 else { \ 00071 snmp_log(LOG_ERR, \ 00072 "netsnmp_assert %s failed %s:%d" NETSNMP_FUNC_FMT, \ 00073 __STRING(x),__FILE__,__LINE__, \ 00074 NETSNMP_FUNC_PARAM); \ 00075 snmp_log(LOG_ERR, y); \ 00076 return z; \ 00077 } \ 00078 }while(0) 00079 # else /* NO DEBUGGING */ 00080 # define netsnmp_assert(x) 00081 # define netsnmp_assert_or_return(x, y) do { \ 00082 if ( x ) \ 00083 ; \ 00084 else { \ 00085 return y; \ 00086 } \ 00087 }while(0) 00088 # define netsnmp_assert_or_msgreturn(x, y, z) do { \ 00089 if ( x ) \ 00090 ; \ 00091 else { \ 00092 return z; \ 00093 } \ 00094 }while(0) 00095 # endif /* NO DEBUGGING */ 00096 #endif /* not NETSNMP_USE_ASSERT */ 00097 00098 00099 #define netsnmp_static_assert(x) \ 00100 do { switch(0) { case (x): case 0: ; } } while(0) 00101 00102 00103 /* 00104 * EXPERIMENTAL macros. May be removed without warning in future 00105 * releases. Use at your own risk 00106 * 00107 * The series of uppercase letters at or near the end of these macros give 00108 * an indication of what they do. The letters used are: 00109 * 00110 * L : log a message 00111 * RN : return NULL 00112 * RE : return a specific hardcoded error appropriate for the condition 00113 * RV : return user specified value 00114 * 00115 */ 00116 #define netsnmp_malloc_check_LRN(ptr) \ 00117 netsnmp_assert_or_return( (ptr) != NULL, NULL) 00118 #define netsnmp_malloc_check_LRE(ptr) \ 00119 netsnmp_assert_or_return( (ptr) != NULL, SNMPERR_MALLOC) 00120 #define netsnmp_malloc_check_LRV(ptr, val) \ 00121 netsnmp_assert_or_return( (ptr) != NULL, val) 00122 00123 #define netsnmp_require_ptr_LRV( ptr, val ) \ 00124 netsnmp_assert_or_return( (ptr) != NULL, val) 00125 00126 00127 #endif /* SNMP_ASSERT_H */
1.7.4