| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: err.h,v 1.1 2002/01/25 19:34:45 mdw Exp $ |
| 4 | * |
| 5 | * Error reporting |
| 6 | * |
| 7 | * (c) 2001 Mark Wooding |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of Jog: Programming for a jogging machine. |
| 13 | * |
| 14 | * Jog is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * Jog is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with Jog; if not, write to the Free Software Foundation, |
| 26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | */ |
| 28 | |
| 29 | /*----- Revision history --------------------------------------------------* |
| 30 | * |
| 31 | * $Log: err.h,v $ |
| 32 | * Revision 1.1 2002/01/25 19:34:45 mdw |
| 33 | * Initial revision |
| 34 | * |
| 35 | */ |
| 36 | |
| 37 | #ifndef ERR_H |
| 38 | #define ERR_H |
| 39 | |
| 40 | #ifdef __cplusplus |
| 41 | extern "C" { |
| 42 | #endif |
| 43 | |
| 44 | /*----- Header files ------------------------------------------------------*/ |
| 45 | |
| 46 | #ifdef HAVE_CONFIG_H |
| 47 | # include "config.h" |
| 48 | #endif |
| 49 | |
| 50 | #include <stdarg.h> |
| 51 | |
| 52 | /*----- Error codes -------------------------------------------------------*/ |
| 53 | |
| 54 | /* --- Abort codes --- * |
| 55 | * |
| 56 | * Only for the most serious errors, pertaining to the log file. |
| 57 | */ |
| 58 | |
| 59 | #define ERRABORT_LOGOPEN 1u /* Log file wouldn't open */ |
| 60 | #define ERRABORT_LOGWRITE 2u /* Couldn't write to log file */ |
| 61 | |
| 62 | /* --- Error contexts and reason codes --- * |
| 63 | * |
| 64 | * Most errors are reported as a group of three numeric codes. These are, in |
| 65 | * order: |
| 66 | * |
| 67 | * * the `context' code, which describes where whatever it was went wrong |
| 68 | * went wrong; |
| 69 | * |
| 70 | * * the `reason' code (specific to a particular context), which describes |
| 71 | * what the program was trying to do at the time; and |
| 72 | * |
| 73 | * * the `error' code (again specific to a particular context, but usually |
| 74 | * an @errno@ error code), which explains what the problem actually was. |
| 75 | */ |
| 76 | |
| 77 | #define ERR_EXC 1u /* mLib exception error code */ |
| 78 | /* Reason code is zero; error code is exception number */ |
| 79 | |
| 80 | #define ERR_RXGLUE 2u /* REXX interface stuff */ |
| 81 | # define ERRRX_SCRIPTREAD 1u /* Problem reading script file */ |
| 82 | # define ERRRX_INTERP 2u /* Error code from interpreter */ |
| 83 | # define ERRRX_INIT 3u /* Initialization error */ |
| 84 | |
| 85 | #define ERR_RXERR 3u /* REXX error */ |
| 86 | /* Reason code is line number; error code is REXX error number */ |
| 87 | |
| 88 | #define ERR_TXPORT 4u /* Transport switch stuff */ |
| 89 | # define ERRTX_BADTX 1u /* Unknown transport name */ |
| 90 | # define ERRTX_CREATE 2u /* Error creating transport */ |
| 91 | # define ERRTX_WRITE 3u /* Error writing to transport */ |
| 92 | # define ERRTX_READ 4u /* Read error from transport */ |
| 93 | # define ERRTX_CONFIG 5u /* Error in configuration */ |
| 94 | |
| 95 | /*----- Functions provided ------------------------------------------------*/ |
| 96 | |
| 97 | /* --- @err_abort@ --- * |
| 98 | * |
| 99 | * Arguments: @int reason@ = abort reason code |
| 100 | * @unsigned long err@ = abort error code |
| 101 | * @const char *msg@ = error message |
| 102 | * |
| 103 | * Returns: Doesn't. |
| 104 | * |
| 105 | * Use: Reports a fatal error. |
| 106 | */ |
| 107 | |
| 108 | extern void err_abortv(int /*reason*/, unsigned long /*err*/, |
| 109 | const char */*msg*/, va_list */*ap*/); |
| 110 | |
| 111 | extern void err_abort(int /*reason*/, unsigned long /*err*/, |
| 112 | const char */*msg*/, ...); |
| 113 | |
| 114 | /* --- @err_init@ --- * |
| 115 | * |
| 116 | * Arguments: --- |
| 117 | * |
| 118 | * Returns: --- |
| 119 | * |
| 120 | * Use: Attempts to initialize the logging system. It is a |
| 121 | * catastrophic failure if logging can't start up. |
| 122 | */ |
| 123 | |
| 124 | extern void err_init(void); |
| 125 | |
| 126 | /* --- @err_report@ --- * |
| 127 | * |
| 128 | * Arguments: @int ctx@ = context code |
| 129 | * @int reason@ = reason code |
| 130 | * @unsigned long err@ = system error code |
| 131 | * @const char *msg@ = textual message to log |
| 132 | * |
| 133 | * Returns: --- |
| 134 | * |
| 135 | * Use: Reports an error. Doesn't abort anything unless something |
| 136 | * really serious happens. |
| 137 | */ |
| 138 | |
| 139 | extern void err_reportv(int /*ctx*/, int /*reason*/, unsigned long /*err*/, |
| 140 | const char */*msg*/, va_list */*ap*/); |
| 141 | |
| 142 | extern void err_report(int /*ctx*/, int /*reason*/, unsigned long /*err*/, |
| 143 | const char */*msg*/, ...); |
| 144 | |
| 145 | /* --- @err_log@ --- * |
| 146 | * |
| 147 | * Arguments: @const char *msg@ = textual message to log |
| 148 | * |
| 149 | * Returns: --- |
| 150 | * |
| 151 | * Use: Logs a message. |
| 152 | */ |
| 153 | |
| 154 | extern void err_logv(const char */*msg*/, va_list */*ap*/); |
| 155 | |
| 156 | extern void err_log(const char */*msg*/, ...); |
| 157 | |
| 158 | /*----- That's all, folks -------------------------------------------------*/ |
| 159 | |
| 160 | #ifdef __cplusplus |
| 161 | } |
| 162 | #endif |
| 163 | |
| 164 | #endif |