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Fix regression in handling of incompressible chunks.

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Attempt to properly signal exit on decompression error (not working yet).
This commit is contained in:
Moinak Ghosh 2015-02-09 23:00:06 -08:00
parent 7ef20ec5be
commit 4360c5581f
1 changed files with 17 additions and 4 deletions
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21
pcompress.c
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@ -355,8 +355,6 @@ preproc_compress(pc_ctx_t *pctx, compress_func_ptr cmp_func, void *src, uint64_t
get_mb_s(srclen, strt, en)));
} else {
DEBUG_STAT_EN(fprintf(stderr, "Chunk did not compress.\n"));
memcpy(dest+1, src, srclen);
*dstlen = srclen + 1;
/*
* If compression failed but one of the pre-processing succeeded then
* type flags will be non-zero. In that case we still indicate a success
@ -364,8 +362,17 @@ preproc_compress(pc_ctx_t *pctx, compress_func_ptr cmp_func, void *src, uint64_t
* type flags will indicate that compression was not done and the
* decompress routine will not be called.
*/
if (type > 0)
if (type > 0) {
memcpy(dest+1, src, srclen);
*dstlen = srclen + 1;
result = 0;
} else {
/*
* Not Compressed and not preprocessed. Ensure that we signal
* error upstream, so this is handled correctly.
*/
result = -1;
}
}
return (result);
}
@ -500,6 +507,9 @@ perform_decompress(void *dat)
pctx = tdat->pctx;
redo:
Sem_Wait(&tdat->start_sem);
if (pctx->main_cancel)
return (NULL);
if (unlikely(tdat->cancel)) {
tdat->len_cmp = 0;
Sem_Post(&tdat->cmp_done_sem);
@ -752,12 +762,15 @@ redo:
tdat->len_cmp = 0;
log_msg(LOG_ERR, 0, "ERROR: Chunk %d, checksums do not match.", tdat->id);
pctx->t_errored = 1;
pctx->main_cancel = 1;
}
}
cont:
Sem_Post(&tdat->cmp_done_sem);
goto redo;
if (!pctx->t_errored)
goto redo;
return (NULL);
}
/*