greg/pcompress
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Fix calculation of extra scratch space for Dedupe.

Browse source 
Add missing return value check in small buffer Delta2.
Update test failure detection in test driver.
This commit is contained in:
Moinak Ghosh 2013-01-03 22:25:14 +05:30
parent d9eb82e0e8
commit 47ebd5b752
3 changed files with 12 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
delta2/delta2.c
View file

@ -127,6 +127,8 @@ delta2_encode(uchar_t *src, uint64_t srclen, uchar_t *dst, uint64_t *dstlen, int
*((uint64_t *)dst) = LE64(srclen);
dst += MAIN_HDR;
rv = delta2_encode_real(src, srclen, dst, dstlen, rle_thresh, 1, &hdr_ovr);
if (rv == -1)
return (rv);
*dstlen += MAIN_HDR;
DEBUG_STAT_EN(fprintf(stderr, "DELTA2: srclen: %" PRIu64 ", dstlen: %" PRIu64 "\n", srclen, *dstlen));
DEBUG_STAT_EN(fprintf(stderr, "DELTA2: header overhead: %d\n", hdr_ovr));
@ -288,7 +290,7 @@ delta2_encode_real(uchar_t *src, uint64_t srclen, uchar_t *dst, uint64_t *dstlen
/*
* No need to check for destination buffer overflow since
* dstlen == srclen always.
* dstlen >= srclen always.
*/
if ( gtot1 > (srclen - (DELTA_HDR + LIT_HDR + MAIN_HDR)) ) {
if (srclen == DELTA2_CHUNK) {

9
main.c
View file

@ -264,7 +264,6 @@ preproc_compress(compress_func_ptr cmp_func, void *src, uint64_t srclen, void *d
if (type > 0)
result = 0;
}
return (result);
}
@ -1489,8 +1488,12 @@ start_compress(const char *filename, uint64_t chunksize, int level)
else
flags |= FLAG_DEDUP_FIXED;
/* Additional scratch space for dedup arrays. */
compressed_chunksize += (dedupe_buf_extra(chunksize, 0, algo,
enable_delta_encode) - (compressed_chunksize - chunksize));
if (chunksize + dedupe_buf_extra(chunksize, 0, algo, enable_delta_encode)
> compressed_chunksize) {
compressed_chunksize += (chunksize +
dedupe_buf_extra(chunksize, 0, algo, enable_delta_encode)) -
compressed_chunksize;
}
}
if (encrypt_type) {

9
test/run_test.sh
View file

@ -52,12 +52,9 @@ then
[ $? -ne 0 ] && continue
cd datafiles
(. ../${tf})
if [ $? -ne 0 ]
then
echo "FATAL: Test ${tf} failed"
failures=$((failures + 1))
fi
(. ../${tf}) 2>&1 | tee ${tf}.log
fails=`egrep "^FATAL:" ${tf}.log | wc -l`
failures=$((failures + fails))
cd $PDIR
done
else