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huf log speed optimization: unidirectional scan of logs + break when regressing

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This commit is contained in:
Danielle Rozenblit
2022-12-20 12:27:38 -08:00
parent c2638212af
commit 482689b995
21 changed files with 96 additions and 77 deletions
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programs/util.c
+6 -3
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@@ -569,7 +569,7 @@ UTIL_mergeFileNamesTable(FileNamesTable* table1, FileNamesTable* table2)
for( idx2=0 ; (idx2 < table2->tableSize) && table2->fileNames[idx2] && (pos < newTotalTableSize) ; ++idx2, ++newTableIdx) {
size_t const curLen = strlen(table2->fileNames[idx2]);
memcpy(buf+pos, table2->fileNames[idx2], curLen);
assert(newTableIdx <= newTable->tableSize);
assert(newTableIdx < newTable->tableSize);
newTable->fileNames[newTableIdx] = buf+pos;
pos += curLen+1;
} }
@@ -693,8 +693,11 @@ static int UTIL_prepareFileList(const char *dirName,
ptrdiff_t newListSize = (*bufEnd - *bufStart) + LIST_SIZE_INCREASE;
assert(newListSize >= 0);
*bufStart = (char*)UTIL_realloc(*bufStart, (size_t)newListSize);
*bufEnd = *bufStart + newListSize;
if (*bufStart == NULL) { free(path); closedir(dir); return 0; }
if (*bufStart != NULL) {
*bufEnd = *bufStart + newListSize;
} else {
free(path); closedir(dir); return 0;
}
}
if (*bufStart + *pos + pathLength < *bufEnd) {
memcpy(*bufStart + *pos, path, pathLength + 1); /* with final \0 */