[svn-r324] Change H5A (atoms) to H5I (IDs)

1 files changed, 107 insertions, 0 deletions

diff --git a/src/H5Iprivate.h b/src/H5Iprivate.h
new file mode 100644
index 0000000..c339390
--- /dev/null
+++ b/src/H5Iprivate.h
@@ -0,0 +1,107 @@
+/****************************************************************************
+ * NCSA HDF                                                                 *
+ * Software Development Group                                               *
+ * National Center for Supercomputing Applications                          *
+ * University of Illinois at Urbana-Champaign                               *
+ * 605 E. Springfield, Champaign IL 61820                                   *
+ *                                                                          *
+ * For conditions of distribution and use, see the accompanying             *
+ * hdf/COPYING file.                                                        *
+ *                                                                          *
+ ****************************************************************************/
+
+/*-----------------------------------------------------------------------------
+ * File:    H5Iprivate.h
+ * Purpose: header file for ID API
+ *---------------------------------------------------------------------------*/
+
+/* avoid re-inclusion */
+#ifndef _H5Iprivate_H
+#define _H5Iprivate_H
+
+#include <H5Ipublic.h>          /*include Public Definitions                 */
+
+/* Private headers needed by this file */
+#include <H5private.h>
+
+/* ID Feature controls */
+
+/*
+ * Define the following macro for fast hash calculations (but limited
+ * hash sizes)
+ */
+#define HASH_SIZE_POWER_2
+
+/* Define the following macro for atom caching over all the atoms */
+#define IDS_ARE_CACHED
+
+#ifdef IDS_ARE_CACHED
+#  define ID_CACHE_SIZE 4             /*# of previous atoms cached         */
+#endif
+
+/* Map an atom to a Group number */
+#define ID_TO_GROUP(a)    ((H5I_group_t)((((hid_t)(a))>>			     \
+					((sizeof(hid_t)*8)-GROUP_BITS))&GROUP_MASK))
+
+#ifdef HASH_SIZE_POWER_2
+
+/*
+ * Map an ID to a hash location (assumes s is a power of 2 and smaller
+ * than the ID_MASK constant).
+ */
+#  define ID_TO_LOC(a,s)    ((hid_t)(a)&((s)-1))
+#else
+
+/*
+ * Map an ID to a hash location.
+ */
+#  define ID_TO_LOC(a,s)    (((hid_t)(a)&ID_MASK)%(s))
+#endif
+
+/* Default sizes of the hash-tables for various atom groups */
+#define H5I_ERRSTACK_HASHSIZE   	64
+#define H5I_FILEID_HASHSIZE     	64
+#define H5I_TEMPID_HASHSIZE     	64
+#define H5I_DATATYPEID_HASHSIZE 	64
+#define H5I_DATASPACEID_HASHSIZE 	64
+#define H5I_DATASETID_HASHSIZE  	64
+#define H5I_OID_HASHSIZE        	64
+#define H5I_GROUPID_HASHSIZE    	64
+
+/* Atom information structure used */
+typedef struct H5I_id_info_t {
+    hid_t              id;       /* ID for this info                   */
+    uintn              count;    /* ref. count for this atom                */
+    void               *obj_ptr; /* pointer associated with the atom 	   */
+    struct H5I_id_info_t *next;	 /* link to next atom (in case of hash-clash)*/
+} H5I_id_info_t;
+
+/* ID group structure used */
+typedef struct {
+    uintn       count;          /*# of times this group has been initialized */
+    uintn       reserved;       /*# of IDs to reserve for constant IDs   */
+    uintn       wrapped;	    /*whether the id count has wrapped around    */
+    intn        hash_size;      /*sizeof the hash table to store the IDs in*/
+    uintn       ids;            /*current number of IDs held               */
+    uintn       nextid;         /*ID to use for the next atom           */
+    herr_t      (*free_func)(void*);/*func to call to release object	     */
+    H5I_id_info_t **id_list;    /*pointer to an array of ptrs to IDs       */
+} H5I_id_group_t;
+
+/* Type of the function to compare objects & keys */
+typedef intn (*H5I_search_func_t) (const void * obj, const void * key);
+
+/* Private Functions in H5I.c */
+intn H5I_init_group (H5I_group_t grp, intn hash_size, uintn reserved,
+		     herr_t (*free_func)(void *));
+herr_t H5I_destroy_group (H5I_group_t grp);
+hid_t H5I_register (H5I_group_t grp, void *object);
+void *H5I_object (hid_t id);
+H5I_group_t H5I_group (hid_t id);
+void *H5I_remove (hid_t id);
+void *H5I_search (H5I_group_t grp, H5I_search_func_t func, const void *key);
+void H5I_term_interface (void);
+intn H5I_dec_ref (hid_t id);
+hid_t H5I_inc_ref (hid_t id);
+
+#endif