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Use 256 elements table in nghttp2_downcast

This commit is contained in:
Tatsuhiro Tsujikawa 2014-10-04 00:40:51 +09:00
parent df875db989
commit 32ddca532a
1 changed files with 68 additions and 3 deletions
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71
lib/nghttp2_helper.c
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@ -88,13 +88,78 @@ void* nghttp2_memdup(const void* src, size_t n)
return dest;
}
static const int DOWNCASE_TBL[] = {
0 /* NUL */, 1 /* SOH */, 2 /* STX */, 3 /* ETX */,
4 /* EOT */, 5 /* ENQ */, 6 /* ACK */, 7 /* BEL */,
8 /* BS */, 9 /* HT */, 10 /* LF */, 11 /* VT */,
12 /* FF */, 13 /* CR */, 14 /* SO */, 15 /* SI */,
16 /* DLE */, 17 /* DC1 */, 18 /* DC2 */, 19 /* DC3 */,
20 /* DC4 */, 21 /* NAK */, 22 /* SYN */, 23 /* ETB */,
24 /* CAN */, 25 /* EM */, 26 /* SUB */, 27 /* ESC */,
28 /* FS */, 29 /* GS */, 30 /* RS */, 31 /* US */,
32 /* SPC */, 33 /* ! */, 34 /* " */, 35 /* # */,
36 /* $ */, 37 /* % */, 38 /* & */, 39 /* ' */,
40 /* ( */, 41 /* ) */, 42 /* * */, 43 /* + */,
44 /* , */, 45 /* - */, 46 /* . */, 47 /* / */,
48 /* 0 */, 49 /* 1 */, 50 /* 2 */, 51 /* 3 */,
52 /* 4 */, 53 /* 5 */, 54 /* 6 */, 55 /* 7 */,
56 /* 8 */, 57 /* 9 */, 58 /* : */, 59 /* ; */,
60 /* < */, 61 /* = */, 62 /* > */, 63 /* ? */,
64 /* @ */, 97 /* A */, 98 /* B */, 99 /* C */,
100 /* D */, 101 /* E */, 102 /* F */, 103 /* G */,
104 /* H */, 105 /* I */, 106 /* J */, 107 /* K */,
108 /* L */, 109 /* M */, 110 /* N */, 111 /* O */,
112 /* P */, 113 /* Q */, 114 /* R */, 115 /* S */,
116 /* T */, 117 /* U */, 118 /* V */, 119 /* W */,
120 /* X */, 121 /* Y */, 122 /* Z */, 91 /* [ */,
92 /* \ */, 93 /* ] */, 94 /* ^ */, 95 /* _ */,
96 /* ` */, 97 /* a */, 98 /* b */, 99 /* c */,
100 /* d */, 101 /* e */, 102 /* f */, 103 /* g */,
104 /* h */, 105 /* i */, 106 /* j */, 107 /* k */,
108 /* l */, 109 /* m */, 110 /* n */, 111 /* o */,
112 /* p */, 113 /* q */, 114 /* r */, 115 /* s */,
116 /* t */, 117 /* u */, 118 /* v */, 119 /* w */,
120 /* x */, 121 /* y */, 122 /* z */, 123 /* { */,
124 /* | */, 125 /* } */, 126 /* ~ */, 127 /* DEL */,
128 /* 0x80 */, 129 /* 0x81 */, 130 /* 0x82 */, 131 /* 0x83 */,
132 /* 0x84 */, 133 /* 0x85 */, 134 /* 0x86 */, 135 /* 0x87 */,
136 /* 0x88 */, 137 /* 0x89 */, 138 /* 0x8a */, 139 /* 0x8b */,
140 /* 0x8c */, 141 /* 0x8d */, 142 /* 0x8e */, 143 /* 0x8f */,
144 /* 0x90 */, 145 /* 0x91 */, 146 /* 0x92 */, 147 /* 0x93 */,
148 /* 0x94 */, 149 /* 0x95 */, 150 /* 0x96 */, 151 /* 0x97 */,
152 /* 0x98 */, 153 /* 0x99 */, 154 /* 0x9a */, 155 /* 0x9b */,
156 /* 0x9c */, 157 /* 0x9d */, 158 /* 0x9e */, 159 /* 0x9f */,
160 /* 0xa0 */, 161 /* 0xa1 */, 162 /* 0xa2 */, 163 /* 0xa3 */,
164 /* 0xa4 */, 165 /* 0xa5 */, 166 /* 0xa6 */, 167 /* 0xa7 */,
168 /* 0xa8 */, 169 /* 0xa9 */, 170 /* 0xaa */, 171 /* 0xab */,
172 /* 0xac */, 173 /* 0xad */, 174 /* 0xae */, 175 /* 0xaf */,
176 /* 0xb0 */, 177 /* 0xb1 */, 178 /* 0xb2 */, 179 /* 0xb3 */,
180 /* 0xb4 */, 181 /* 0xb5 */, 182 /* 0xb6 */, 183 /* 0xb7 */,
184 /* 0xb8 */, 185 /* 0xb9 */, 186 /* 0xba */, 187 /* 0xbb */,
188 /* 0xbc */, 189 /* 0xbd */, 190 /* 0xbe */, 191 /* 0xbf */,
192 /* 0xc0 */, 193 /* 0xc1 */, 194 /* 0xc2 */, 195 /* 0xc3 */,
196 /* 0xc4 */, 197 /* 0xc5 */, 198 /* 0xc6 */, 199 /* 0xc7 */,
200 /* 0xc8 */, 201 /* 0xc9 */, 202 /* 0xca */, 203 /* 0xcb */,
204 /* 0xcc */, 205 /* 0xcd */, 206 /* 0xce */, 207 /* 0xcf */,
208 /* 0xd0 */, 209 /* 0xd1 */, 210 /* 0xd2 */, 211 /* 0xd3 */,
212 /* 0xd4 */, 213 /* 0xd5 */, 214 /* 0xd6 */, 215 /* 0xd7 */,
216 /* 0xd8 */, 217 /* 0xd9 */, 218 /* 0xda */, 219 /* 0xdb */,
220 /* 0xdc */, 221 /* 0xdd */, 222 /* 0xde */, 223 /* 0xdf */,
224 /* 0xe0 */, 225 /* 0xe1 */, 226 /* 0xe2 */, 227 /* 0xe3 */,
228 /* 0xe4 */, 229 /* 0xe5 */, 230 /* 0xe6 */, 231 /* 0xe7 */,
232 /* 0xe8 */, 233 /* 0xe9 */, 234 /* 0xea */, 235 /* 0xeb */,
236 /* 0xec */, 237 /* 0xed */, 238 /* 0xee */, 239 /* 0xef */,
240 /* 0xf0 */, 241 /* 0xf1 */, 242 /* 0xf2 */, 243 /* 0xf3 */,
244 /* 0xf4 */, 245 /* 0xf5 */, 246 /* 0xf6 */, 247 /* 0xf7 */,
248 /* 0xf8 */, 249 /* 0xf9 */, 250 /* 0xfa */, 251 /* 0xfb */,
252 /* 0xfc */, 253 /* 0xfd */, 254 /* 0xfe */, 255 /* 0xff */,
};
void nghttp2_downcase(uint8_t *s, size_t len)
{
size_t i;
for(i = 0; i < len; ++i) {
if('A' <= s[i] && s[i] <= 'Z') {
s[i] += 'a'-'A';
}
s[i] = DOWNCASE_TBL[s[i]];
}
}