include/stubs.h

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DEFINITIONS

This source file includes following functions.
  1. sql_tblnam_t
  2. sql_key_t

   1 /***************************************
   2   $Revision: 1.7 $
   3 
   4   stubs.h - header file with things defined just to provisionally fix the TBDs.
   5 
   6   Status: NOT REVUED, TESTED, INCOMPLETE
   7 
   8   Design and implementation by: Marek Bukowy
   9 
  10   ******************/ /******************
  11   Copyright (c) 1999                              RIPE NCC
  12  
  13   All Rights Reserved
  14   
  15   Permission to use, copy, modify, and distribute this software and its
  16   documentation for any purpose and without fee is hereby granted,
  17   provided that the above copyright notice appear in all copies and that
  18   both that copyright notice and this permission notice appear in
  19   supporting documentation, and that the name of the author not be
  20   used in advertising or publicity pertaining to distribution of the
  21   software without specific, written prior permission.
  22   
  23   THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  24   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
  25   AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
  26   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
  27   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  28   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  29   ***************************************/
  30 
  31 /* stubs: just defined to let the other thing compile. Use #define
  32 NOSTUBS to disable it. */
  33 
  34 #ifndef _STUBS_H
  35 #define _STUBS_H
  36 
  37 #include <stdlib.h>
  38 #include <stdio.h>
  39 #include <ctype.h>
  40 
  41 /* config.h - comes from configure. */
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #endif
  45 
  46 /* this is to allow user stubs in the code */
  47 /* it will trigger an error when NOSTUBS is set */
  48 
  49 #ifndef NOSTUBS
  50 #define STUB(a) do{a;}while(0)
  51 #else
  52 #define STUB(a) hey_here_is_a_stub_left=%^&*&@@@;
  53 #endif
  54 
  55 /* now these are predefined ones... */
  56 
  57 #ifndef NOSTUBS
  58 
  59 /* for memcmp and strcmp */
  60 #define CMP_EQUAL 0
  61 
  62 /* stub for those compilers (wrrrrrrr....) that can't do (struct != struct) */
  63 #define STRUCT_EQUAL(a,b) (memcmp(&a, &b, sizeof(a)) == CMP_EQUAL)
  64 
  65 /* this prints the filename and line number where it was placed,
  66    and then commits suicide (read: segfault) by writing to address NULL.
  67    This in normal conditions generates a coredump for later analysis.
  68    
  69    isdigit() is used to avoid warnings from lint. 
  70    do..while is to allow treating this macro as a single instruction 
  71    (eg in an if).
  72 */
  73 
  74 #define die   do{ \
  75         fprintf(stderr,"died: +%d %s\n",__LINE__, __FILE__);\
  76         *((int*)NULL)=0; \
  77         } while(isdigit('a'))           
  78 
  79 #define dieif(a) if(a) { \
  80         fprintf(stderr,"died on "#a" in: +%d %s\n",__LINE__, __FILE__);\
  81         *((int*)NULL)=0; \
  82         }
  83 
  84 
  85 #define SQL_TBLNAM_MAX 32 
  86 
  87 
  88 /* struct to hold the table name. 
  89    Wrapped in a struct to make it behave like a normal object (ref by
  90 value)
  91 
  92    in fact, this type should be made engine-dependent.
  93 */
  94 
  95 typedef struct {              
  96   char val[SQL_TBLNAM_MAX];
  97 } sql_tblnam_t;
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  98 
  99 /* who knows what key type we will really have in other engines */
 100 typedef long sql_key_t;
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 101 
 102 #define SQ_NOKEY 0L
 103 
 104 
 105 #ifdef HAVE_STRSEP
 106 /* good */
 107 #else 
 108 #  if defined(HAVE_STRTOK_R) && !defined(HAVE_STRSEP)
 109 /* emulate strsep with strtok_r 
 110    by making first arg to strtok_r point to the last 
 111 
 112 char *
 113 strsep(char **stringp, const char *delim)
 114 {
 115   return strtok_r( *stringp, delim, stringp);
 116 }
 117 */
 118 #define strsep(a,b) strtok_r( *(a), (b), (a) )
 119 
 120 #  else
 121 #  error "must have strsep or strtok_r"
 122 #  endif
 123 #endif
 124 
 125 
 126 #endif /* NOSTUBS */
 127 #endif /* _STUBS_H */

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