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author | Robb Matzke <matzke@llnl.gov> | 1998-03-13 17:50:38 (GMT) |
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committer | Robb Matzke <matzke@llnl.gov> | 1998-03-13 17:50:38 (GMT) |
commit | 48e075110624e0039b1918a7187316366a20462b (patch) | |
tree | 84c8e7b6e38ad7965efe868aab91aebe23047cd5 /src/H5Ssimp.c | |
parent | d5b60eef9dbeaa0f9df7a8f28b300fb94b7d15f1 (diff) | |
download | hdf5-48e075110624e0039b1918a7187316366a20462b.zip hdf5-48e075110624e0039b1918a7187316366a20462b.tar.gz hdf5-48e075110624e0039b1918a7187316366a20462b.tar.bz2 |
[svn-r321] Changes since 19980306
----------------------
./MANIFEST
./src/H5D.c
./src/H5S.c
./src/H5Sprivate.h
./src/H5Ssimp.c
./src/H5Tpkg.h
./src/H5Tprivate.h
./src/H5V.c
./test/Makefile.in
./test/iopipe.c [NEW]
Optimizations to the I/O pipeline.
./src/H5Fistore.c
./src/H5Oefl.c
Fixed a few compiler warnings.
./MANIFEST
Added entries for ./config/{intel-osf1,irix5.3}
Diffstat (limited to 'src/H5Ssimp.c')
-rw-r--r-- | src/H5Ssimp.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/H5Ssimp.c b/src/H5Ssimp.c index ee2d680..6f1f498 100644 --- a/src/H5Ssimp.c +++ b/src/H5Ssimp.c @@ -471,3 +471,218 @@ H5S_simp_fscat (H5F_t *f, const struct H5O_layout_t *layout, FUNC_LEAVE (SUCCEED); } + + +/*------------------------------------------------------------------------- + * Function: H5S_simp_read + * + * Purpose: Reads a dataset from file F directly into application memory + * BUF performing data space conversion in a single step from + * FILE_SPACE to MEM_SPACE. The dataset is stored in the file + * according to the LAYOUT and EFL (external file list) and data + * point in the file is ELMT_SIZE bytes. + * + * Return: Success: SUCCEED + * + * Failure: FAIL + * + * Programmer: Robb Matzke + * Thursday, March 12, 1998 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +herr_t +H5S_simp_read (H5F_t *f, const struct H5O_layout_t *layout, + const struct H5O_efl_t *efl, size_t elmt_size, + const H5S_t *file_space, const H5S_t *mem_space, + void *buf/*out*/) +{ + size_t hslab_size[H5O_LAYOUT_NDIMS]; + size_t file_offset[H5O_LAYOUT_NDIMS]; + size_t mem_size[H5O_LAYOUT_NDIMS]; + size_t mem_offset[H5O_LAYOUT_NDIMS]; + int i; + + FUNC_ENTER (H5S_simp_read, FAIL); + +#ifndef NDEBUG + assert (file_space->type==mem_space->type); + assert (file_space->u.simple.rank==mem_space->u.simple.rank); + for (i=0; i<file_space->u.simple.rank; i++) { + if (file_space->hslab_def && mem_space->hslab_def) { + assert (1==file_space->h.stride[i]); + assert (1==mem_space->h.stride[i]); + assert (file_space->h.count[i]==mem_space->h.count[i]); + } else if (file_space->hslab_def) { + assert (1==file_space->h.stride[i]); + assert (file_space->h.count[i]==mem_space->u.simple.size[i]); + } else if (mem_space->hslab_def) { + assert (1==mem_space->h.stride[i]); + assert (file_space->u.simple.size[i]==mem_space->h.count[i]); + } else { + assert (file_space->u.simple.size[i]== + mem_space->u.simple.size[i]); + } + } +#endif + + + /* + * Calculate size of hyperslab and offset of hyperslab into file and + * memory. + */ + if (file_space->hslab_def) { + for (i=0; i<file_space->u.simple.rank; i++) { + hslab_size[i] = file_space->h.count[i]; + } + } else { + for (i=0; i<file_space->u.simple.rank; i++) { + hslab_size[i] = file_space->u.simple.size[i]; + } + } + for (i=0; i<mem_space->u.simple.rank; i++) { + mem_size[i] = mem_space->u.simple.size[i]; + } + if (file_space->hslab_def) { + for (i=0; i<file_space->u.simple.rank; i++) { + file_offset[i] = file_space->h.start[i]; + } + } else { + for (i=0; i<file_space->u.simple.rank; i++) { + file_offset[i] = 0; + } + } + if (mem_space->hslab_def) { + for (i=0; i<mem_space->u.simple.rank; i++) { + mem_offset[i] = mem_space->h.start[i]; + } + } else { + for (i=0; i<mem_space->u.simple.rank; i++) { + mem_offset[i] = 0; + } + } + hslab_size[file_space->u.simple.rank] = elmt_size; + mem_size[file_space->u.simple.rank] = elmt_size; + file_offset[file_space->u.simple.rank] = 0; + mem_offset[file_space->u.simple.rank] = 0; + + /* Read the hyperslab */ + if (H5F_arr_read (f, layout, efl, hslab_size, + mem_size, mem_offset, file_offset, buf)<0) { + HRETURN_ERROR (H5E_IO, H5E_READERROR, FAIL, "unable to read dataset"); + } + + FUNC_LEAVE (SUCCEED); +} + + +/*------------------------------------------------------------------------- + * Function: H5S_simp_write + * + * Purpose: Write a dataset from application memory BUF directly into + * file F performing data space conversion in a single step from + * MEM_SPACE to FILE_SPACE. The dataset is stored in the file + * according to the LAYOUT and EFL (external file list) and data + * point in the file is ELMT_SIZE bytes. + * + * Return: Success: SUCCEED + * + * Failure: FAIL + * + * Programmer: Robb Matzke + * Thursday, March 12, 1998 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +herr_t +H5S_simp_write (H5F_t *f, const struct H5O_layout_t *layout, + const struct H5O_efl_t *efl, size_t elmt_size, + const H5S_t *file_space, const H5S_t *mem_space, + const void *buf) +{ + size_t hslab_size[H5O_LAYOUT_NDIMS]; + size_t file_offset[H5O_LAYOUT_NDIMS]; + size_t mem_size[H5O_LAYOUT_NDIMS]; + size_t mem_offset[H5O_LAYOUT_NDIMS]; + int i; + + FUNC_ENTER (H5S_simp_write, FAIL); + +#ifndef NDEBUG + assert (file_space->type==mem_space->type); + assert (file_space->u.simple.rank==mem_space->u.simple.rank); + for (i=0; i<file_space->u.simple.rank; i++) { + if (file_space->hslab_def && mem_space->hslab_def) { + assert (1==file_space->h.stride[i]); + assert (1==mem_space->h.stride[i]); + assert (file_space->h.count[i]==mem_space->h.count[i]); + } else if (file_space->hslab_def) { + assert (1==file_space->h.stride[i]); + assert (file_space->h.count[i]==mem_space->u.simple.size[i]); + } else if (mem_space->hslab_def) { + assert (1==mem_space->h.stride[i]); + assert (file_space->u.simple.size[i]==mem_space->h.count[i]); + } else { + assert (file_space->u.simple.size[i]== + mem_space->u.simple.size[i]); + } + } +#endif + + + /* + * Calculate size of hyperslab and offset of hyperslab into file and + * memory. + */ + if (file_space->hslab_def) { + for (i=0; i<file_space->u.simple.rank; i++) { + hslab_size[i] = file_space->h.count[i]; + } + } else { + for (i=0; i<file_space->u.simple.rank; i++) { + hslab_size[i] = file_space->u.simple.size[i]; + } + } + for (i=0; i<mem_space->u.simple.rank; i++) { + mem_size[i] = mem_space->u.simple.size[i]; + } + if (file_space->hslab_def) { + for (i=0; i<file_space->u.simple.rank; i++) { + file_offset[i] = file_space->h.start[i]; + } + } else { + for (i=0; i<file_space->u.simple.rank; i++) { + file_offset[i] = 0; + } + } + if (mem_space->hslab_def) { + for (i=0; i<mem_space->u.simple.rank; i++) { + mem_offset[i] = mem_space->h.start[i]; + } + } else { + for (i=0; i<mem_space->u.simple.rank; i++) { + mem_offset[i] = 0; + } + } + hslab_size[file_space->u.simple.rank] = elmt_size; + mem_size[file_space->u.simple.rank] = elmt_size; + file_offset[file_space->u.simple.rank] = 0; + mem_offset[file_space->u.simple.rank] = 0; + + /* Write the hyperslab */ + if (H5F_arr_write (f, layout, efl, hslab_size, + mem_size, mem_offset, file_offset, buf)<0) { + HRETURN_ERROR (H5E_IO, H5E_WRITEERROR, FAIL, + "unable to write dataset"); + } + + FUNC_LEAVE (SUCCEED); +} + + + + |