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authorQuincey Koziol <koziol@hdfgroup.org>2006-08-21 14:51:16 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2006-08-21 14:51:16 (GMT)
commit143cfe24b447f7470c8e25852bfec5705f6b7f47 (patch)
treee6e5de769a7248cc13a655cd63e157e7c76c917c /src
parentfc409b2cd0ef53cb6dea21a2f3b8398e9f4f804e (diff)
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[svn-r12602] Description:
Correct bug in doubling table algorithm which was generating incorrect row & column for offset larger than could be represented in 32 bits. Also, beef up the error checking in direct block code a bit Tested On: FreeBSD/32 4.11 (sleipnir) Linux/32 2.4 (heping) Linux/64 2.4 (mir) Solaris/64 2.9 (shanti)
Diffstat (limited to 'src')
-rw-r--r--src/H5HFdblock.c4
-rw-r--r--src/H5HFdtable.c8
2 files changed, 10 insertions, 2 deletions
diff --git a/src/H5HFdblock.c b/src/H5HFdblock.c
index 548e32f..6082d38 100644
--- a/src/H5HFdblock.c
+++ b/src/H5HFdblock.c
@@ -352,7 +352,7 @@ HDfprintf(stderr, "%s: request = %Zu\n", FUNC, request);
if(request < hdr->man_dtable.cparam.start_block_size)
min_dblock_size = hdr->man_dtable.cparam.start_block_size;
else {
- min_dblock_size = 1 << (1 + H5V_log2_gen((hsize_t)request));
+ min_dblock_size = ((size_t)1) << (1 + H5V_log2_gen((hsize_t)request));
HDassert(min_dblock_size <= hdr->man_dtable.cparam.max_direct_size);
} /* end else */
@@ -554,6 +554,7 @@ HDfprintf(stderr, "%s: iblock_addr = %a\n", FUNC, iblock_addr);
/* Compute # of rows in child indirect block */
nrows = (H5V_log2_gen(hdr->man_dtable.row_block_size[row]) - hdr->man_dtable.first_row_bits) + 1;
+ HDassert(nrows < iblock->nrows); /* child must be smaller than parent */
/* Compute indirect block's entry */
entry = (row * hdr->man_dtable.cparam.width) + col;
@@ -592,6 +593,7 @@ HDfprintf(stderr, "%s: iblock->block_off = %Hu\n", FUNC, iblock->block_off);
/* Look up row & column in new indirect block for object */
if(H5HF_dtable_lookup(&hdr->man_dtable, (obj_off - iblock->block_off), &row, &col) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTCOMPUTE, FAIL, "can't compute row & column of object")
+ HDassert(row < iblock->nrows); /* child must be smaller than parent */
#ifdef QAK
HDfprintf(stderr, "%s: row = %u, col = %u\n", FUNC, row, col);
#endif /* QAK */
diff --git a/src/H5HFdtable.c b/src/H5HFdtable.c
index 700ae9e..80ec8b1 100644
--- a/src/H5HFdtable.c
+++ b/src/H5HFdtable.c
@@ -160,6 +160,9 @@ H5HF_dtable_lookup(const H5HF_dtable_t *dtable, hsize_t off, unsigned *row, unsi
HDassert(dtable);
HDassert(row);
HDassert(col);
+#ifdef QAK
+HDfprintf(stderr, "%s: off = %Hu\n", "H5HF_dtable_lookup", off);
+#endif /* QAK */
/* Check for offset in first row */
if(off < dtable->num_id_first_row) {
@@ -168,8 +171,11 @@ H5HF_dtable_lookup(const H5HF_dtable_t *dtable, hsize_t off, unsigned *row, unsi
} /* end if */
else {
unsigned high_bit = H5V_log2_gen(off); /* Determine the high bit in the offset */
- hsize_t off_mask = 1 << high_bit; /* Compute mask for determining column */
+ hsize_t off_mask = ((hsize_t)1) << high_bit; /* Compute mask for determining column */
+#ifdef QAK
+HDfprintf(stderr, "%s: high_bit = %u, off_mask = %Hu\n", "H5HF_dtable_lookup", high_bit, off_mask);
+#endif /* QAK */
*row = (high_bit - dtable->first_row_bits) + 1;
*col = (off - off_mask) / dtable->row_block_size[*row];
} /* end else */