[e70e45] | 1 | /******************************************************************* |
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| 2 | * File: omError.c |
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[13fe1b] | 3 | * Purpose: implementation of Error handling routines |
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[e70e45] | 4 | * Author: obachman (Olaf Bachmann) |
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| 5 | * Created: 11/99 |
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| 6 | *******************************************************************/ |
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| 7 | |
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| 8 | #include <stdarg.h> |
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[be127e] | 9 | #include "omalloc.h" |
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[e70e45] | 10 | |
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| 11 | omError_t om_ErrorStatus = omError_NoError; |
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| 12 | omError_t om_InternalErrorStatus = omError_NoError; |
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| 13 | |
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| 14 | struct omErrorString_s |
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| 15 | { |
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| 16 | omError_t error; |
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| 17 | char* s_error; |
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| 18 | char* string; |
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| 19 | }; |
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| 20 | |
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| 21 | /* strings describing omErrors */ |
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[ca97aa] | 22 | static const struct omErrorString_s om_ErrorStrings[] = |
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[e70e45] | 23 | { |
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| 24 | {omError_NoError, "omError_NoError", "no error"}, |
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| 25 | {omError_Unknown, "omError_Unknown", "unknown error" }, |
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| 26 | {omError_MemoryCorrupted, "omError_MemoryCorrupted", "memory corrupted"}, |
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| 27 | {omError_InternalBug, "omError_InternalBug", "internal omalloc bug"}, |
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| 28 | {omError_NullAddr, "omError_NullAddr", "addr is NULL"}, |
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| 29 | {omError_InvalidRangeAddr, "omError_InvalidRangeAddr", "addr not in valid range"}, |
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| 30 | {omError_FalseAddr, "omError_FalseAddr", "addr not as returned by omalloc"}, |
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| 31 | {omError_FalseAddrOrMemoryCorrupted, "omError_FalseAddrOrMemoryCorrupted", "addr not as returned by omalloc or memory corrupted", }, |
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| 32 | {omError_WrongSize, "omError_WrongSize", "wrong size specification of addr"}, |
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| 33 | {omError_FreedAddr, "omError_FreedAddr", "addr had previosuly been freed"}, |
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| 34 | {omError_FreedAddrOrMemoryCorrupted, "omError_FreedAddrOrMemoryCorrupted", "addr had previosuly been freed or memory corrupted"}, |
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[91c4012] | 35 | {omError_WrongBin, "omError_WrongBin", "addr is not from given Bin"}, |
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[e70e45] | 36 | {omError_UnknownBin, "omError_UnknownBin", "given Bin is unknown"}, |
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[91c4012] | 37 | {omError_NotBinAddr, "omError_NotBinAddr", "addr is not a BinAddr"}, |
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[e70e45] | 38 | {omError_UnalignedAddr, "omError_UnalignedAddr", "addr is unaligned"}, |
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| 39 | {omError_NullSizeAlloc, "omError_NullSizeAlloc", "alloc of size 0"}, |
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| 40 | {omError_ListCycleError, "omError_ListCycleError", "list has cycles"}, |
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| 41 | {omError_SortedListError, "omError_SortedListError", "sorted list is unsorted"}, |
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| 42 | {omError_KeptAddrListCorrupted, "omError_KeptAddrListCorrupted", "list of kept addresses are corrupted"}, |
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| 43 | {omError_FrontPattern, "omError_FrontPattern", "written to front of addr"}, |
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| 44 | {omError_BackPattern, "omError_BackPattern", "written after end of addr"}, |
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| 45 | {omError_FreePattern, "omError_FreePattern", "written into freed memory"}, |
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| 46 | {omError_NotString, "omError_NotString", "string not null terminated"}, |
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[f103fb] | 47 | {omError_StickyBin, "omError_StickyBin", "wrong handling of sticky bins"}, |
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[13fe1b] | 48 | |
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[e70e45] | 49 | {omError_MaxError, NULL} /* this needs to be the last entry */ |
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| 50 | }; |
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| 51 | |
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| 52 | const char* omError2String(omError_t error) |
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| 53 | { |
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| 54 | int i = 0; |
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| 55 | while (! (om_ErrorStrings[i].string == NULL && om_ErrorStrings[i].error == omError_MaxError)) |
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| 56 | { |
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| 57 | if (om_ErrorStrings[i].error == error) return om_ErrorStrings[i].string; |
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| 58 | i++; |
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| 59 | } |
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| 60 | return "undocumented error"; |
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| 61 | } |
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| 62 | |
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| 63 | const char* omError2Serror(omError_t error) |
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| 64 | { |
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| 65 | int i = 0; |
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| 66 | while (! (om_ErrorStrings[i].string == NULL && om_ErrorStrings[i].error == omError_MaxError)) |
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| 67 | { |
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| 68 | if (om_ErrorStrings[i].error == error) return om_ErrorStrings[i].s_error; |
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| 69 | i++; |
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| 70 | } |
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| 71 | return "omError_UnKnown"; |
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| 72 | } |
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| 73 | |
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[36ee6f] | 74 | #ifndef OM_NDEBUG |
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| 75 | int om_CallErrorHook = 1; |
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| 76 | #endif |
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| 77 | |
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[13fe1b] | 78 | omError_t omReportError(omError_t error, omError_t report_error, OM_FLR_DECL, |
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[e70e45] | 79 | const char* fmt, ...) |
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| 80 | { |
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[fe1e67] | 81 | int max_check, max_track; |
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[13fe1b] | 82 | |
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[e70e45] | 83 | if (report_error == omError_MaxError) return error; |
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[fe1e67] | 84 | /* reset MaxTrack and MaxCheck to prevent infinite loop, in case |
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| 85 | printf allocates memory */ |
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| 86 | max_check = om_Opts.MaxCheck; |
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| 87 | max_track = om_Opts.MaxTrack; |
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| 88 | om_Opts.MaxCheck = 0; |
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| 89 | om_Opts.MaxTrack = 0; |
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[13fe1b] | 90 | |
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[e70e45] | 91 | om_InternalErrorStatus = error; |
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| 92 | om_ErrorStatus = (report_error == omError_NoError ? error : report_error); |
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| 93 | |
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| 94 | if (om_Opts.HowToReportErrors && om_ErrorStatus != omError_NoError) |
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| 95 | { |
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[4e35c76] | 96 | /* to avoid spurious error msg in 64 bit mode*/ |
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[177059] | 97 | if (om_ErrorStatus == omError_StickyBin) return error; |
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[e70e45] | 98 | fprintf(stderr, "***%s: %s", omError2Serror(om_ErrorStatus), omError2String(om_ErrorStatus)); |
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[13fe1b] | 99 | |
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[e70e45] | 100 | #ifdef OM_INTERNAL_DEBUG |
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| 101 | if (om_ErrorStatus != error) |
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| 102 | fprintf(stderr, "\n___%s: %s", omError2Serror(error), omError2String(error)); |
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| 103 | #endif |
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| 104 | |
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| 105 | if (om_Opts.HowToReportErrors > 2 && fmt != NULL && *fmt != '\0') |
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| 106 | { |
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| 107 | va_list ap; |
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| 108 | va_start(ap, fmt); |
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| 109 | fprintf(stderr, ": "); |
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| 110 | vfprintf(stderr, fmt, ap); |
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| 111 | va_end(ap); |
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| 112 | } |
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| 113 | |
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| 114 | if (om_Opts.HowToReportErrors > 1) |
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| 115 | { |
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| 116 | #ifndef OM_NDEBUG |
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[80f8f6c] | 117 | fprintf(stderr, "\n occurred at: "); |
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[13fe1b] | 118 | if (! _omPrintCurrentBackTrace(stderr, OM_FLR_VAL)) |
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[e70e45] | 119 | fprintf(stderr, " ??"); |
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| 120 | #endif |
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| 121 | } |
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| 122 | fprintf(stderr, "\n"); |
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| 123 | fflush(stderr); |
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| 124 | } |
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[36ee6f] | 125 | if (om_CallErrorHook) |
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| 126 | om_Opts.ErrorHook(); |
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[13fe1b] | 127 | |
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[fe1e67] | 128 | om_Opts.MaxCheck = max_check; |
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| 129 | om_Opts.MaxTrack = max_track; |
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[e70e45] | 130 | return error; |
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| 131 | } |
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| 132 | |
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| 133 | |
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[36ee6f] | 134 | /* this is a dummy function and used as default for om_Opts.ErrorHook */ |
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| 135 | extern void omErrorBreak() |
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| 136 | {} |
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