Mercurial > noffle

annotate src/dynamicstring.c @ 58:b4e6f7f96135 noffle

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[svn] Add some intermediate variables for easier debugging in needsMark(). It seems that thread mode is sometimes not working. Changed some variable types and used some casts to avoid compiler warnings about signedness. In general, int should be used for parameters for allowing a signedness assertion in the function.
author enz
date Fri, 12 May 2000 17:52:07 +0100
parents 125d79c9e586
children e612b263934f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
43
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1 /*
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2 dynamicstring.c
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3
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125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
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4 $Id: dynamicstring.c 60 2000-05-09 22:28:38Z uh1763 $
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5 */
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6
45
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7 #if HAVE_CONFIG_H
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8 #include <config.h>
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9 #endif
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10
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11 #include "dynamicstring.h"
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12
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13 #include <sys/types.h>
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14 #include "log.h"
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125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
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15 #include "portable.h"
43
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16
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17 struct DynStr
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18 {
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19 size_t len; /* Current length (without trailing '\0') */
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20 size_t max; /* Max length that fits into buffer (incl. trailing '\0') */
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21 char *str;
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22 };
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23
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24 static void
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25 reallocStr( DynStr *self, size_t max )
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26 {
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27 if ( max <= self->max )
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28 return;
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29 if ( ! ( self->str = (char *)realloc( self->str, max ) ) )
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30 {
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31 Log_err( "Realloc of DynStr failed" );
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32 exit( EXIT_FAILURE );
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33 }
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34 if ( self->max == 0 ) /* First allocation? */
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35 *(self->str) = '\0';
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36 self->max = max;
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37 }
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38
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39 DynStr *
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40 new_DynStr( size_t reserve )
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41 {
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42 DynStr *s;
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43
45
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44 if ( ! ( s = malloc( sizeof( DynStr ) ) ) )
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45 {
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46 Log_err( "Allocation of DynStr failed" );
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47 exit( EXIT_FAILURE );
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48 }
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49 s->len = 0;
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50 s->max = 0;
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51 s->str = NULL;
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52 if ( reserve > 0 )
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53 reallocStr( s, reserve + 1 );
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54 return s;
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55 }
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56
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57 void
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58 del_DynStr( DynStr *self )
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59 {
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60 if ( ! self )
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61 return;
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62 free( self->str );
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63 self->str = NULL;
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64 free( self );
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65 }
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66
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67 size_t
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68 DynStr_len( const DynStr *self )
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69 {
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70 return self->len;
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71 }
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72
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73 const char *
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74 DynStr_str( const DynStr *self )
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75 {
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76 return self->str;
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77 }
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78
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79 void
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80 DynStr_app( DynStr *self, const char *s )
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81 {
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82 size_t len;
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83
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84 len = strlen( s );
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85 if ( self->len + len + 1 > self->max )
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86 reallocStr( self, self->len * 2 + len + 1 );
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87 strcpy( self->str + self->len, s );
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88 self->len += len;
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89 }
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90
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91 void
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92 DynStr_appDynStr( DynStr *self, const DynStr *s )
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93 {
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94 if ( self->len + s->len + 1 > self->max )
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95 reallocStr( self, self->len * 2 + s->len + 1 );
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96 memcpy( self->str + self->len, s->str, s->len + 1 );
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97 self->len += s->len;
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98 }
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99
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100 void
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101 DynStr_appLn( DynStr *self, const char *s )
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102 {
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103 DynStr_app( self, s );
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104 DynStr_app( self, "\n" );
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105 }
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106
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107 void
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108 DynStr_appN( DynStr *self, const char *s, size_t n )
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109 {
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110 size_t len = self->len;
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111
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112 if ( len + n + 1 > self->max )
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113 reallocStr( self, len * 2 + n + 1 );
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114 strncat( self->str + len, s, n );
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115 self->len = len + strlen( self->str + len );
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116 }
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117
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118 void
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119 DynStr_clear( DynStr *self )
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120 {
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121 self->len = 0;
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122 if ( self->max > 0 )
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123 *(self->str) = '\0';
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124 }
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125