summaryrefslogtreecommitdiffstats
path: root/src/H5Faccum.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/H5Faccum.c')
-rw-r--r--src/H5Faccum.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/src/H5Faccum.c b/src/H5Faccum.c
index 9e3dfda..5e39215 100644
--- a/src/H5Faccum.c
+++ b/src/H5Faccum.c
@@ -125,8 +125,9 @@ H5F__accum_read(H5F_shared_t *f_sh, H5FD_mem_t map_type, haddr_t addr, size_t si
HDassert(!accum->buf || (accum->alloc_size >= accum->size));
/* Current read adjoins or overlaps with metadata accumulator */
- if (H5F_addr_overlap(addr, size, accum->loc, accum->size) || ((addr + size) == accum->loc) ||
- (accum->loc + accum->size) == addr) {
+ if (H5F_addr_defined(accum->loc) &&
+ (H5F_addr_overlap(addr, size, accum->loc, accum->size) || ((addr + size) == accum->loc) ||
+ (accum->loc + accum->size) == addr)) {
size_t amount_before; /* Amount to read before current accumulator */
haddr_t new_addr; /* New address of the accumulator buffer */
size_t new_size; /* New size of the accumulator buffer */
@@ -438,7 +439,7 @@ H5F__accum_write(H5F_shared_t *f_sh, H5FD_mem_t map_type, haddr_t addr, size_t s
/* Check if there is already metadata in the accumulator */
if (accum->size > 0) {
/* Check if the new metadata adjoins the beginning of the current accumulator */
- if ((addr + size) == accum->loc) {
+ if (H5F_addr_defined(accum->loc) && (addr + size) == accum->loc) {
/* Check if we need to adjust accumulator size */
if (H5F__accum_adjust(accum, file, H5F_ACCUM_PREPEND, size) < 0)
HGOTO_ERROR(H5E_IO, H5E_CANTRESIZE, FAIL, "can't adjust metadata accumulator")
@@ -463,7 +464,7 @@ H5F__accum_write(H5F_shared_t *f_sh, H5FD_mem_t map_type, haddr_t addr, size_t s
accum->dirty_off = 0;
} /* end if */
/* Check if the new metadata adjoins the end of the current accumulator */
- else if (addr == (accum->loc + accum->size)) {
+ else if (H5F_addr_defined(accum->loc) && addr == (accum->loc + accum->size)) {
/* Check if we need to adjust accumulator size */
if (H5F__accum_adjust(accum, file, H5F_ACCUM_APPEND, size) < 0)
HGOTO_ERROR(H5E_IO, H5E_CANTRESIZE, FAIL, "can't adjust metadata accumulator")
@@ -484,7 +485,8 @@ H5F__accum_write(H5F_shared_t *f_sh, H5FD_mem_t map_type, haddr_t addr, size_t s
accum->size += size;
} /* end if */
/* Check if the piece of metadata being written overlaps the metadata accumulator */
- else if (H5F_addr_overlap(addr, size, accum->loc, accum->size)) {
+ else if (H5F_addr_defined(accum->loc) &&
+ H5F_addr_overlap(addr, size, accum->loc, accum->size)) {
size_t add_size; /* New size of the accumulator buffer */
/* Check if the new metadata is entirely within the current accumulator */
@@ -744,7 +746,7 @@ H5F__accum_write(H5F_shared_t *f_sh, H5FD_mem_t map_type, haddr_t addr, size_t s
/* (Note that this could be improved by updating the accumulator
* with [some of] the information just read in. -QAK)
*/
- if (H5F_addr_overlap(addr, size, accum->loc, accum->size)) {
+ if (H5F_addr_defined(accum->loc) && H5F_addr_overlap(addr, size, accum->loc, accum->size)) {
/* Check for write starting before beginning of accumulator */
if (H5F_addr_le(addr, accum->loc)) {
/* Check for write ending within accumulator */
@@ -866,7 +868,7 @@ H5F__accum_free(H5F_shared_t *f_sh, H5FD_mem_t H5_ATTR_UNUSED type, haddr_t addr
file = f_sh->lf;
/* Adjust the metadata accumulator to remove the freed block, if it overlaps */
- if ((f_sh->feature_flags & H5FD_FEAT_ACCUMULATE_METADATA) &&
+ if ((f_sh->feature_flags & H5FD_FEAT_ACCUMULATE_METADATA) && H5F_addr_defined(accum->loc) &&
H5F_addr_overlap(addr, size, accum->loc, accum->size)) {
size_t overlap_size; /* Size of overlap with accumulator */