1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2012 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Eclipse Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.eclipse.org/org/documents/epl-v10.html * 11 * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * Glenn Fowler 25 * AT&T Research 26 * 27 * option, error and message formatter external definitions 28 */ 29 30 #ifndef _ERROR_H 31 #define _ERROR_H 32 33 #include <ast.h> 34 #include <option.h> 35 #include <errno.h> 36 37 #define ERROR_VERSION 20070319L 38 39 #if !defined(errno) && defined(__DYNAMIC__) 40 #define errno __DYNAMIC__(errno) 41 #endif 42 43 #define ERROR_debug(n) (-(n)) 44 #define ERROR_exit(n) ((n)+ERROR_ERROR) 45 #define ERROR_system(n) (((n)+ERROR_ERROR)|ERROR_SYSTEM) 46 #define ERROR_usage(n) ((((n)?2:0)+ERROR_ERROR)|ERROR_USAGE) 47 #define ERROR_warn(n) (ERROR_WARNING) 48 49 #ifndef ERROR_catalog 50 #define ERROR_catalog(t) t 51 #endif 52 #ifndef ERROR_dictionary 53 #define ERROR_dictionary(t) t 54 #endif 55 56 #ifndef ERROR_translate 57 #define ERROR_translating() (error_info.translate&&(ast.locale.set&(1<<AST_LC_MESSAGES))) 58 #define ERROR_translate(l,i,d,m) (ERROR_translating()?errorx((const char*)(l),(const char*)(i),(const char*)(d),(const char*)(m)):(char*)(m)) 59 #endif 60 61 #define ERROR_INFO 0 /* info message -- no err_id */ 62 #define ERROR_WARNING 1 /* warning message */ 63 #define ERROR_ERROR 2 /* error message -- no err_exit */ 64 #define ERROR_FATAL 3 /* error message with err_exit */ 65 #define ERROR_NOEXEC EXIT_NOEXEC /* shell convention */ 66 #define ERROR_NOENT EXIT_NOTFOUND /* shell convention */ 67 #define ERROR_PANIC ERROR_LEVEL /* panic message with err_exit */ 68 69 #define ERROR_LEVEL 0x00ff /* level portion of status */ 70 #define ERROR_SYSTEM 0x0100 /* report system errno message */ 71 #define ERROR_OUTPUT 0x0200 /* next arg is error fd */ 72 #define ERROR_SOURCE 0x0400 /* next 2 args are FILE,LINE */ 73 #define ERROR_USAGE 0x0800 /* usage message */ 74 #define ERROR_PROMPT 0x1000 /* omit trailing newline */ 75 #define ERROR_NOID 0x2000 /* omit err_id */ 76 #define ERROR_LIBRARY 0x4000 /* library routine error */ 77 78 #define ERROR_INTERACTIVE 0x0001 /* context is interactive */ 79 #define ERROR_SILENT 0x0002 /* context is silent */ 80 #define ERROR_NOTIFY 0x0004 /* main(-sig,0,ctx) on signal */ 81 82 #define ERROR_FREE 0x0010 /* free context on pop */ 83 #define ERROR_POP 0x0020 /* pop context */ 84 #define ERROR_PUSH 0x0040 /* push context */ 85 #define ERROR_SET 0x0080 /* set context */ 86 87 #ifdef ECONNRESET 88 #define ERROR_PIPE(e) ((e)==EPIPE||(e)==ECONNRESET||(e)==EIO) 89 #else 90 #define ERROR_PIPE(e) ((e)==EPIPE||(e)==EIO) 91 #endif 92 93 /* 94 * errorpush()/errorpop() are obsolete -- use errorctx() instead 95 */ 96 97 #ifndef ERROR_CONTEXT_T 98 #define ERROR_CONTEXT_T Error_info_t 99 #endif 100 101 #define ERROR_CONTEXT_BASE ((Error_context_t*)&error_info.context) 102 103 #define errorpush(p,f) (*(p)=*ERROR_CONTEXT_BASE,*ERROR_CONTEXT_BASE=error_info.empty,error_info.context=(Error_context_t*)(p),error_info.flags=(f)) 104 #define errorpop(p) (*ERROR_CONTEXT_BASE=*(p)) 105 106 typedef struct Error_info_s Error_info_t; 107 typedef struct Error_context_s Error_context_t; 108 109 #define ERROR_CONTEXT \ 110 ERROR_CONTEXT_T* context; /* prev context stack element */ \ 111 int errors; /* >= ERROR_ERROR count */ \ 112 int flags; /* context flags */ \ 113 int line; /* input|output line number */ \ 114 int warnings; /* ERROR_WARNING count */ \ 115 char* file; /* input|output file name */ \ 116 char* id; /* command id */ 117 118 struct Error_context_s /* context stack element */ 119 { 120 ERROR_CONTEXT 121 }; 122 123 struct Error_info_s /* error state */ 124 { 125 int fd; /* write(2) fd */ 126 127 void (*exit)(int); /* error exit */ 128 ssize_t (*write)(int, const void*, size_t); /* error output */ 129 130 /* the rest are implicitly initialized */ 131 132 int clear; /* default clear ERROR_* flags */ 133 int core; /* level>=core -> core dump */ 134 int indent; /* debug trace indent level */ 135 int init; /* initialized */ 136 int last_errno; /* last reported errno */ 137 int mask; /* multi level debug trace mask */ 138 int set; /* default set ERROR_* flags */ 139 int trace; /* debug trace level */ 140 141 char* version; /* ERROR_SOURCE command version */ 142 143 int (*auxilliary)(Sfio_t*, int, int); /* aux info to append */ 144 145 ERROR_CONTEXT /* top of context stack */ 146 147 Error_context_t empty; /* empty context stack element */ 148 149 unsigned long time; /* debug time trace */ 150 151 char* (*translate)(const char*, const char*, const char*, const char*); /* format translator */ 152 153 const char* catalog; /* message catalog */ 154 }; 155 156 #ifndef errno 157 extern int errno; /* system call error status */ 158 #endif 159 160 #if _BLD_ast && defined(__EXPORT__) 161 #define extern extern __EXPORT__ 162 #endif 163 #if !_BLD_ast && defined(__IMPORT__) 164 #define extern extern __IMPORT__ 165 #endif 166 167 extern Error_info_t* _error_infop_; 168 169 #define error_info (*_error_infop_) 170 171 #undef extern 172 173 #if _BLD_ast && defined(__EXPORT__) 174 #define extern __EXPORT__ 175 #endif 176 177 extern void error(int, ...); 178 extern int errormsg(const char*, int, ...); 179 extern int errorf(void*, void*, int, ...); 180 extern void errorv(const char*, int, va_list); 181 #ifndef errorx 182 extern char* errorx(const char*, const char*, const char*, const char*); 183 #endif 184 extern Error_info_t* errorctx(Error_info_t*, int, int); 185 186 #undef extern 187 188 #endif 189