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authorQuincey Koziol <koziol@hdfgroup.org>2004-06-05 19:06:24 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2004-06-05 19:06:24 (GMT)
commit60c6500fad6e102ed3535f12d3f3edf55ff6fed6 (patch)
treea2bbe48ab81cd52ad8a6de3f668f4bf2e3448bb7 /src/H5Dpkg.h
parent085f120d19bd0c465b9f3d518637612febc3ae01 (diff)
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[svn-r8614] Purpose:
Refactor code Description: Move chunk and contiguous cached raw data from file information to dataset information. This simplifies a number of internal interfaces, aligns the code with it's purpose better and should allow more optimizations to the chunked data I/O performance. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) h5committest
Diffstat (limited to 'src/H5Dpkg.h')
-rw-r--r--src/H5Dpkg.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/src/H5Dpkg.h b/src/H5Dpkg.h
index 8a4abae..b72a13d 100644
--- a/src/H5Dpkg.h
+++ b/src/H5Dpkg.h
@@ -50,6 +50,29 @@
/* Package Private Typedefs */
/****************************/
+/* The raw data chunk cache */
+typedef struct H5D_rdcc_t {
+ unsigned ninits; /* Number of chunk creations */
+ unsigned nhits; /* Number of cache hits */
+ unsigned nmisses;/* Number of cache misses */
+ unsigned nflushes;/* Number of cache flushes */
+ size_t nbytes; /* Current cached raw data in bytes */
+ size_t nslots; /* Number of chunk slots allocated */
+ struct H5D_rdcc_ent_t *head; /* Head of doubly linked list */
+ struct H5D_rdcc_ent_t *tail; /* Tail of doubly linked list */
+ int nused; /* Number of chunk slots in use */
+ struct H5D_rdcc_ent_t **slot; /* Chunk slots, each points to a chunk*/
+} H5D_rdcc_t;
+
+/* The raw data contiguous data cache */
+typedef struct H5D_rdcdc_t {
+ unsigned char *sieve_buf; /* Buffer to hold data sieve buffer */
+ haddr_t sieve_loc; /* File location (offset) of the data sieve buffer */
+ size_t sieve_size; /* Size of the data sieve buffer used (in bytes) */
+ size_t sieve_buf_size; /* Size of the data sieve buffer allocated (in bytes) */
+ unsigned sieve_dirty; /* Flag to indicate that the data sieve buffer is dirty */
+} H5D_rdcdc_t;
+
/*
* A dataset is the following struct.
*/
@@ -60,11 +83,18 @@ struct H5D_t {
hid_t dcpl_id; /* dataset creation property id */
H5D_dcpl_cache_t dcpl_cache; /* Cached DCPL values */
H5O_layout_t layout; /* data layout */
+
/* Cache some frequently accessed values from the DCPL */
H5O_efl_t efl; /* External file list information */
H5D_alloc_time_t alloc_time; /* Dataset allocation time */
H5D_fill_time_t fill_time; /* Dataset fill value writing time */
H5O_fill_t fill; /* Dataset fill value information */
+
+ /* Buffered/cached information for types of raw data storage*/
+ union {
+ H5D_rdcdc_t contig; /* Information about contiguous data */
+ H5D_rdcc_t chunk; /* Information about chunked data */
+ }cache;
};
/* Enumerated type for allocating dataset's storage */
@@ -87,6 +117,30 @@ extern H5D_dxpl_cache_t H5D_def_dxpl_cache;
H5_DLL herr_t H5D_alloc_storage (H5F_t *f, hid_t dxpl_id, H5D_t *dset, H5D_time_alloc_t time_alloc,
hbool_t update_time, hbool_t full_overwrite);
+/* Functions that operate on contiguous storage */
+H5_DLL herr_t H5D_contig_create(H5F_t *f, hid_t dxpl_id, H5D_t *dset);
+H5_DLL herr_t H5D_contig_fill(H5F_t *f, hid_t dxpl_id, H5D_t *dset);
+
+/* Functions that operate on indexed storage */
+H5_DLL herr_t H5D_istore_init (H5F_t *f, H5D_t *dset);
+H5_DLL herr_t H5D_istore_flush (H5F_t *f, hid_t dxpl_id, H5D_t *dset, unsigned flags);
+H5_DLL herr_t H5D_istore_create(H5F_t *f, hid_t dxpl_id,
+ H5O_layout_t *layout/*in,out*/);
+H5_DLL herr_t H5D_istore_dest (H5F_t *f, hid_t dxpl_id, H5D_t *dset);
+H5_DLL herr_t H5D_istore_allocate (H5F_t *f, hid_t dxpl_id,
+ const H5D_t *dset, hbool_t full_overwrite);
+H5_DLL hsize_t H5D_istore_allocated(H5F_t *f, hid_t dxpl_id, H5D_t *dset);
+H5_DLL herr_t H5D_istore_prune_by_extent( H5F_t *f,
+ const H5D_dxpl_cache_t *dxpl_cache, hid_t dxpl_id, H5D_t *dset);
+H5_DLL herr_t H5D_istore_initialize_by_extent( H5F_t *f,
+ const H5D_dxpl_cache_t *dxpl_cache, hid_t dxpl_id, H5D_t *dset);
+H5_DLL herr_t H5D_istore_update_cache(H5F_t *f, hid_t dxpl_id, H5D_t *dset);
+H5_DLL herr_t H5D_istore_dump_btree(H5F_t *f, hid_t dxpl_id, FILE *stream, unsigned ndims,
+ haddr_t addr);
+#ifdef H5D_ISTORE_DEBUG
+H5_DLL herr_t H5D_istore_stats (H5D_t *dset, hbool_t headers);
+#endif /* H5D_ISTORE_DEBUG */
+
/* Testing functions */
#ifdef H5D_TESTING
H5_DLL herr_t H5D_layout_version_test(hid_t did, unsigned *version);