Overview
Comment: | Decompressor - try to fill as much as possible in the output buffer in a single pass. |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | decompressor2 |
Files: | files | file ages | folders |
SHA1: |
42ba1f458d7b62fd3cc81c27cf27ff41 |
User & Date: | spaskalev on 2014-12-22 16:35:06 |
Other Links: | branch diff | manifest | tags |
Context
2014-12-22
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16:41 | Integrate the decompressor2 branch into trunk now that it is faster. check-in: 6d10a1d28f user: spaskalev tags: trunk | |
16:35 | Decompressor - try to fill as much as possible in the output buffer in a single pass. Closed-Leaf check-in: 42ba1f458d user: spaskalev tags: decompressor2 | |
15:34 | Fixed a nasty variable shadowing bug :) check-in: e9b80a705b user: spaskalev tags: decompressor2 | |
Changes
Modified src/0dev.org/predictor/predictor.go from [219e9c8a2d] to [71e92568a2].
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121 122 123 124 125 126 127 | 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | - - - + + + + - + - + | // and decompresses data according to the predictor algorithm func Decompressor(reader io.Reader) io.Reader { var ctx context ctx.input = make([]byte, 0, 8) return decompressor(func(output []byte) (int, error) { var ( |
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189 190 191 192 193 194 195 196 197 198 199 200 201 202 | 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 | + + - - - + + + + + + + + | // Update the hash ctx.hash = (ctx.hash << 4) ^ uint16(ctx.input[i]) } // rc now contains the precise amount of populated data ctx.input = ctx.input[:rc] available = copy(output, ctx.input) total += available // Check for remaining bytes that dont fit in the output buffer if available < rc { ctx.input = ctx.input[:copy(ctx.input, ctx.input[available:])] } else { // Clear the buffer ctx.input = ctx.input[:0] |