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| author | Quincey Koziol <koziol@hdfgroup.org> | 1998-09-21 23:43:19 (GMT) |
|---|---|---|
| committer | Quincey Koziol <koziol@hdfgroup.org> | 1998-09-21 23:43:19 (GMT) |
| commit | 1fe48c7f19c2eed94a22179459efc1487ee65217 (patch) | |
| tree | 41249aed6d1d5f95f6db00fa33ee7d40f434ca2a /src/H5Sselect.c | |
| parent | 7b189913384c500b71cb82d1780d6d07b170583c (diff) | |
| download | hdf5-1fe48c7f19c2eed94a22179459efc1487ee65217.zip hdf5-1fe48c7f19c2eed94a22179459efc1487ee65217.tar.gz hdf5-1fe48c7f19c2eed94a22179459efc1487ee65217.tar.bz2 | |
[svn-r712] Added temporary buffer support to several places in the library which were
calling malloc too often. Also, added caching of hyperslab blocks, which
improves performance _significantly_ for hyperslab I/O.
Diffstat (limited to 'src/H5Sselect.c')
| -rw-r--r-- | src/H5Sselect.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/H5Sselect.c b/src/H5Sselect.c index 4d9a84d..0620570 100644 --- a/src/H5Sselect.c +++ b/src/H5Sselect.c @@ -14,6 +14,7 @@ #include <H5MMprivate.h> #include <H5Sprivate.h> #include <H5Vprivate.h> +#include <H5TBprivate.h> /* Interface initialization */ #define PABLO_MASK H5S_select_mask @@ -293,7 +294,7 @@ H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op, const hsize_t count[/*space_id*/], const hsize_t block[/*space_id*/]) { - + hid_t stride_id=FAIL,block_id=FAIL; /* Stride & block temp. buffer IDs */ hsize_t *_stride=NULL; /* Stride array */ hsize_t *_block=NULL; /* Block size array */ hssize_t slab[H5O_LAYOUT_NDIMS]; /* Location of the block to add for strided selections */ @@ -316,7 +317,8 @@ H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op, if(stride==NULL) { hssize_t fill=1; - if((_stride = H5MM_malloc(sizeof(hssize_t)*space->extent.u.simple.rank))==NULL) + /* Allocate temporary buffer */ + if((stride_id = H5TB_get_buf(sizeof(hssize_t)*space->extent.u.simple.rank,0,(void **)&_stride)) ==FAIL) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate stride vector"); H5V_array_fill(_stride,&fill,sizeof(hssize_t),space->extent.u.simple.rank); @@ -327,7 +329,7 @@ H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op, if(block==NULL) { hssize_t fill=1; - if((_block = H5MM_malloc(sizeof(hssize_t)*space->extent.u.simple.rank))==NULL) + if((block_id = H5TB_get_buf(sizeof(hssize_t)*space->extent.u.simple.rank,0,(void **)&_block))==FAIL) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "can't allocate block vector"); H5V_array_fill(_block,&fill,sizeof(hssize_t),space->extent.u.simple.rank); @@ -444,8 +446,8 @@ H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op, #endif /* QAK */ done: - H5MM_xfree(_stride); - H5MM_xfree(_block); + if(_stride!=NULL) H5TB_release_buf(stride_id); + if(_block!=NULL) H5TB_release_buf(block_id); FUNC_LEAVE (ret_value); } |