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-rw-r--r--src/H5Fcontig.c106
1 files changed, 62 insertions, 44 deletions
diff --git a/src/H5Fcontig.c b/src/H5Fcontig.c
index fce1ba9..a63a9ce 100644
--- a/src/H5Fcontig.c
+++ b/src/H5Fcontig.c
@@ -36,8 +36,11 @@ static int interface_initialize_g = 0;
/* Declare a PQ free list to manage the sieve buffer information */
H5FL_BLK_DEFINE(sieve_buf);
-/* Extern the free list to manage blocks of type conversion data */
-H5FL_BLK_EXTERN(type_conv);
+/* Declare the free list to manage blocks of non-zero fill-value data */
+H5FL_BLK_DEFINE_STATIC(non_zero_fill);
+
+/* Declare the free list to manage blocks of zero fill-value data */
+H5FL_BLK_DEFINE_STATIC(zero_fill);
/*-------------------------------------------------------------------------
@@ -56,11 +59,10 @@ H5FL_BLK_EXTERN(type_conv);
*/
herr_t
H5F_contig_fill(H5F_t *f, hid_t dxpl_id, struct H5O_layout_t *layout,
- struct H5P_genplist_t *dc_plist, const struct H5S_t *space,
- size_t elmt_size)
+ struct H5P_genplist_t *dc_plist, const struct H5O_efl_t *efl,
+ const struct H5S_t *space,
+ const struct H5O_fill_t *fill, size_t elmt_size)
{
- H5O_fill_t fill; /* Fill value information */
- H5O_efl_t efl; /* External File List info */
hssize_t snpoints; /* Number of points in space (for error checking) */
size_t npoints; /* Number of points in space */
size_t ptsperbuf; /* Maximum # of points which fit in the buffer */
@@ -77,6 +79,7 @@ H5F_contig_fill(H5F_t *f, hid_t dxpl_id, struct H5O_layout_t *layout,
unsigned blocks_written=0; /* Flag to indicate that chunk was actually written */
unsigned using_mpi=0; /* Flag to indicate that the file is being accessed with an MPI-capable file driver */
#endif /* H5_HAVE_PARALLEL */
+ int non_zero_fill_f=(-1); /* Indicate that a non-zero fill-value was used */
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(H5F_contig_fill, FAIL);
@@ -91,12 +94,6 @@ H5F_contig_fill(H5F_t *f, hid_t dxpl_id, struct H5O_layout_t *layout,
assert(space);
assert(elmt_size>0);
- /* Get necessary properties from dataset creation property list */
- if(H5P_get(dc_plist, H5D_CRT_FILL_VALUE_NAME, &fill) < 0)
- HGOTO_ERROR(H5E_STORAGE, H5E_CANTGET, FAIL, "can't get fill value");
- if(H5P_get(dc_plist, H5D_CRT_EXT_FILE_LIST_NAME, &efl) < 0)
- HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't retrieve external file list");
-
#ifdef H5_HAVE_PARALLEL
/* Retrieve up MPI parameters */
if(IS_H5FD_MPIO(f)) {
@@ -136,46 +133,62 @@ H5F_contig_fill(H5F_t *f, hid_t dxpl_id, struct H5O_layout_t *layout,
assert(snpoints>=0);
H5_ASSIGN_OVERFLOW(npoints,snpoints,hssize_t,size_t);
- /* Don't write default fill-values to external files */
- if(efl.nused>0 && !fill.buf)
- HGOTO_DONE(SUCCEED);
-
- /* If fill value is library default, use the element size */
- if(!fill.buf)
- fill.size=elmt_size;
+ /* If fill value is not library default, use it to set the element size */
+ if(fill->buf)
+ elmt_size=fill->size;
/*
* Fill the entire current extent with the fill value. We can do
* this quite efficiently by making sure we copy the fill value
* in relatively large pieces.
*/
- ptsperbuf = MAX(1, bufsize/fill.size);
- bufsize = ptsperbuf*fill.size;
-
- /* Allocate temporary buffer */
- if ((buf=H5FL_BLK_ALLOC(type_conv,bufsize,0))==NULL)
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for fill buffer");
-
- /* Fill the buffer with the user's fill value */
- if(fill.buf)
- H5V_array_fill(buf, fill.buf, fill.size, ptsperbuf);
- else /* Fill the buffer with the default fill value */
- HDmemset(buf,0,bufsize);
+ ptsperbuf = MAX(1, bufsize/elmt_size);
+ bufsize = ptsperbuf*elmt_size;
+
+ /* Fill the buffer with the user's fill value */
+ if(fill->buf) {
+ /* Allocate temporary buffer */
+ if ((buf=H5FL_BLK_MALLOC(non_zero_fill,bufsize))==NULL)
+ HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for fill buffer");
+
+ H5V_array_fill(buf, fill->buf, elmt_size, ptsperbuf);
+
+ /* Indicate that a non-zero fill buffer was used */
+ non_zero_fill_f=1;
+ } /* end if */
+ else { /* Fill the buffer with the default fill value */
+ htri_t buf_avail;
+
+ /* Check if there is an already zeroed out buffer available */
+ buf_avail=H5FL_BLK_AVAIL(zero_fill,bufsize);
+ assert(buf_avail!=FAIL);
+
+ /* Allocate temporary buffer (zeroing it if no buffer is available) */
+ if(!buf_avail)
+ buf=H5FL_BLK_CALLOC(zero_fill,bufsize);
+ else
+ buf=H5FL_BLK_MALLOC(zero_fill,bufsize);
+ if(buf==NULL)
+ HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for fill buffer");
+
+ /* Indicate that a zero fill buffer was used */
+ non_zero_fill_f=0;
+ } /* end else */
- /* Start at the beginning of the dataset */
- addr = 0;
+ /* Start at the beginning of the dataset */
+ addr = 0;
- /* Loop through writing the fill value to the dataset */
- while (npoints>0) {
- size = MIN(ptsperbuf, npoints) * fill.size;
+ /* Loop through writing the fill value to the dataset */
+ while (npoints>0) {
+ size = MIN(ptsperbuf, npoints) * elmt_size;
#ifdef H5_HAVE_PARALLEL
/* Check if this file is accessed with an MPI-capable file driver */
if(using_mpi) {
/* Round-robin write the chunks out from only one process */
if(mpi_round==mpi_rank) {
- if (H5F_seq_write(f, dxpl_id, layout, dc_plist, space,
- fill.size, size, addr, buf)<0)
+ if (H5F_seq_write(f, dxpl_id, layout, dc_plist, efl, space,
+ elmt_size, size, addr, buf)<0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to write fill value to dataset");
} /* end if */
mpi_round=(++mpi_round)%mpi_size;
@@ -185,8 +198,8 @@ H5F_contig_fill(H5F_t *f, hid_t dxpl_id, struct H5O_layout_t *layout,
} /* end if */
else {
#endif /* H5_HAVE_PARALLEL */
- if (H5F_seq_write(f, dxpl_id, layout, dc_plist, space,
- fill.size, size, addr, buf)<0)
+ if (H5F_seq_write(f, dxpl_id, layout, dc_plist, efl, space,
+ elmt_size, size, addr, buf)<0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to write fill value to dataset");
#ifdef H5_HAVE_PARALLEL
} /* end else */
@@ -211,8 +224,13 @@ H5F_contig_fill(H5F_t *f, hid_t dxpl_id, struct H5O_layout_t *layout,
done:
/* Free the buffer for fill values */
- if (buf)
- H5FL_BLK_FREE(type_conv,buf);
+ if (buf) {
+ assert(non_zero_fill_f>=0);
+ if(non_zero_fill_f)
+ H5FL_BLK_FREE(non_zero_fill,buf);
+ else
+ H5FL_BLK_FREE(zero_fill,buf);
+ } /* end if */
FUNC_LEAVE(ret_value);
}
@@ -661,7 +679,7 @@ H5F_contig_readv(H5F_t *f, hsize_t _max_data, H5FD_mem_t type, haddr_t _addr,
} /* end if */
else {
/* Allocate room for the data sieve buffer */
- if (NULL==(f->shared->sieve_buf=H5FL_BLK_ALLOC(sieve_buf,f->shared->sieve_buf_size,0)))
+ if (NULL==(f->shared->sieve_buf=H5FL_BLK_MALLOC(sieve_buf,f->shared->sieve_buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
/* Determine the new sieve buffer size & location */
@@ -1128,7 +1146,7 @@ H5F_contig_writev(H5F_t *f, hsize_t _max_data, H5FD_mem_t type, haddr_t _addr,
} /* end if */
else {
/* Allocate room for the data sieve buffer */
- if (NULL==(f->shared->sieve_buf=H5FL_BLK_ALLOC(sieve_buf,f->shared->sieve_buf_size,0)))
+ if (NULL==(f->shared->sieve_buf=H5FL_BLK_MALLOC(sieve_buf,f->shared->sieve_buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
/* Determine the new sieve buffer size & location */
generated by cgit v0.12 at 2024-11-06 16:01:29 (GMT)