runtime/objc-errors.m

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  *      objc-errors.m
  26  *      Copyright 1988-1996, NeXT Software, Inc.
  27  */
  28
  29 /*
  30         NXLogObjcError was snarfed from "logErrorInc.c" in the kit.
  31
  32         Contains code for writing error messages to stderr or syslog.
  33
  34         This code is included in errors.m in the kit, and in pbs.c
  35         so pbs can use it also.
  36 */
  37
  38 #if defined(WIN32)
  39     #import <winnt-pdo.h>
  40     #import <windows.h>
  41     #import <sys/types.h>
  42     #import <sys/stat.h>
  43     #import <io.h>
  44     #define syslog(a, b, c)     fprintf(stderr, b, c)
  45 #else
  46     #import <syslog.h>
  47 #endif
  48
  49     #if defined(NeXT_PDO)
  50         #if !defined(WIN32)
  51             #include    <syslog.h>      // major head banging in attempt to find syslog
  52             #import     <stdarg.h>
  53             #include    <unistd.h>      // close
  54         #endif
  55         #import         <fcntl.h>       // file open flags
  56     #endif
  57
  58 #import "objc-private.h"
  59
  60 /*
  61  *      this routine handles errors that involve an object (or class).
  62  */
  63 volatile void __objc_error(id rcv, const char *fmt, ...)
  64 {
  65         va_list vp;
  66
  67         va_start(vp,fmt);
  68         (*_error)(rcv, fmt, vp);
  69         va_end(vp);
  70         _objc_error (rcv, fmt, vp);     /* In case (*_error)() returns. */
  71 }
  72
  73 /*
  74  *      this routine is never called directly...it is only called indirectly
  75  *      through "_error", which can be overriden by an application. It is
  76  *      not declared static because it needs to be referenced in
  77  *      "objc-globaldata.m" (this file organization simplifies the shlib
  78  *      maintenance problem...oh well). It is, however, a "private extern".
  79  */
  80 volatile void _objc_error(id self, const char *fmt, va_list ap)
  81 {
  82     char bigBuffer[4*1024];
  83
  84     vsprintf (bigBuffer, fmt, ap);
  85     _NXLogError ("objc: %s: %s", object_getClassName (self), bigBuffer);
  86
  87 #if defined(WIN32)
  88     RaiseException(0xdead, EXCEPTION_NONCONTINUABLE, 0, NULL);
  89 #else
  90     abort();            /* generates a core file */
  91 #endif
  92 }
  93
  94 /*
  95  *      this routine handles severe runtime errors...like not being able
  96  *      to read the mach headers, allocate space, etc...very uncommon.
  97  */
  98 volatile void _objc_fatal(const char *msg)
  99 {
 100     _NXLogError("objc: %s\n", msg);
 101 #if defined(WIN32)
 102     RaiseException(0xdead, EXCEPTION_NONCONTINUABLE, 0, NULL);
 103 #else
 104     exit(1);
 105 #endif
 106 }
 107
 108 /*
 109  *      this routine handles soft runtime errors...like not being able
 110  *      add a category to a class (because it wasn't linked in).
 111  */
 112 void _objc_inform(const char *fmt, ...)
 113 {
 114     va_list ap;
 115     char bigBuffer[4*1024];
 116
 117     va_start (ap,fmt);
 118     vsprintf (bigBuffer, fmt, ap);
 119     _NXLogError ("objc: %s", bigBuffer);
 120     va_end (ap);
 121 }
 122