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Avoid rehashing directory name when it doesn't change in rpmal population 

- Another modest improvement in redundant rehashing elimination, but in the
  big picture, this is really just another fart in the Sahara desert...
This commit is contained in:
Panu Matilainen 2012-09-05 16:36:16 +03:00
parent 712101ba98
commit ea3a8f1e42
1 changed files with 10 additions and 1 deletions
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11
lib/rpmal.c
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@ -167,6 +167,8 @@ static void rpmalAddFiles(rpmal al, rpmalNum pkgNum, rpmfi fi)
rpm_color_t ficolor;
int skipdoc = (al->tsflags & RPMTRANS_FLAG_NODOCS);
int skipconf = (al->tsflags & RPMTRANS_FLAG_NOCONFIGS);
const char *prevDir = NULL;
unsigned int dirHash, fnHash;
fileEntry.pkgNum = pkgNum;
@ -186,9 +188,16 @@ static void rpmalAddFiles(rpmal al, rpmalNum pkgNum, rpmfi fi)
fileName.dirName = rpmfiDN(fi);
fileName.baseName = rpmfiBN(fi);
/* Avoid rehash on dirname when directory remains the same */
if (fileName.dirName != prevDir) {
dirHash = rstrhash(fileName.dirName);
prevDir = fileName.dirName;
}
fnHash = dirHash ^ rstrhash(fileName.baseName);
fileEntry.entryIx = i;
rpmalFileHashAddEntry(al->fileHash, fileName, fileEntry);
rpmalFileHashAddHEntry(al->fileHash, fileName, fnHash, fileEntry);
}
}