[svn-r8845] This commit was manufactured by cvs2svn to create branch 'hdf5_1_6'.

3 files changed, 231 insertions, 0 deletions

diff --git a/src/H5Cpublic.h b/src/H5Cpublic.h
new file mode 100644
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+++ b/src/H5Cpublic.h
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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
+ * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*-------------------------------------------------------------------------
+ *
+ * Created:	H5Cproto.h
+ *              June 4, 2005
+ *              John Mainzer
+ *
+ * Purpose:     Public include file for cache functions.
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef _H5Cpublic_H
+#define _H5Cpublic_H
+
+/* Public headers needed by this file */
+#include "H5public.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/src/H5RC.c b/src/H5RC.c
new file mode 100644
index 0000000..8ab1818
--- /dev/null
+++ b/src/H5RC.c
@@ -0,0 +1,129 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
+ * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * Reference counting buffer algorithms.
+ *
+ * These are used for various internal buffers which are shared.
+ *
+ */
+
+/* Pablo information */
+/* (Put before include files to avoid problems with inline functions) */
+#define PABLO_MASK	H5RC_mask
+
+#include "H5Eprivate.h"		/* Error handling		  	*/
+#include "H5FLprivate.h"	/* Free lists                           */
+#include "H5RCprivate.h"        /* Reference-counted buffers            */
+
+/* Private typedefs & structs */
+
+/* Declare a free list to manage the H5RC_t struct */
+H5FL_DEFINE_STATIC(H5RC_t);
+
+
+/*--------------------------------------------------------------------------
+ NAME
+    H5RC_create
+ PURPOSE
+    Create a reference counted object
+ USAGE
+    H5RC_t *H5RC_create(o,free)
+        const void *o;          IN: Object to initialize ref-counted object with
+        H5RC_free_func_t free;  IN: Function to call when ref-count drop to zero
+
+ RETURNS
+    Returns a pointer to a new ref-counted object on success, NULL on failure.
+ DESCRIPTION
+    Create a reference counted object.  The object is not duplicated, it is
+    assumed to be owned by the reference counted object now and will be freed
+    with the 'free' function when the reference count drops to zero.
+ GLOBAL VARIABLES
+ COMMENTS, BUGS, ASSUMPTIONS
+ EXAMPLES
+ REVISION LOG
+--------------------------------------------------------------------------*/
+H5RC_t *
+H5RC_create(void *o, H5RC_free_func_t free_func)
+{
+    H5RC_t *ret_value=NULL;   /* Return value */
+
+    FUNC_ENTER_NOAPI(H5RC_create,NULL);
+
+    /* Sanity check */
+    HDassert(o);
+    HDassert(free_func);
+
+    /* Allocate ref-counted string structure */
+    if((ret_value=H5FL_MALLOC(H5RC_t))==NULL)
+        HGOTO_ERROR(H5E_RS,H5E_NOSPACE,NULL,"memory allocation failed");
+
+    /* Set the internal fields */
+    ret_value->o=o;
+    ret_value->n=1;
+    ret_value->free_func=free_func;
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value);
+} /* end H5RC_create() */
+
+
+/*--------------------------------------------------------------------------
+ NAME
+    H5RC_decr
+ PURPOSE
+    Decrement the reference count for a ref-counted object
+ USAGE
+    herr_t H5RC_decr(rc)
+        H5RC_t *rc;             IN: Ref-counted object to decrement count for
+
+ RETURNS
+    SUCCEED/FAIL
+ DESCRIPTION
+    Decrements the reference count for a ref-counted object, calling the
+    object's free function if ref-count drops to zero.
+ GLOBAL VARIABLES
+ COMMENTS, BUGS, ASSUMPTIONS
+ EXAMPLES
+ REVISION LOG
+--------------------------------------------------------------------------*/
+herr_t
+H5RC_decr(H5RC_t *rc)
+{
+    herr_t ret_value=SUCCEED;   /* Return value */
+
+    FUNC_ENTER_NOAPI(H5RC_decr,FAIL);
+
+    /* Sanity check */
+    HDassert(rc);
+    HDassert(rc->o);
+    HDassert(rc->n>0);
+    HDassert(rc->free_func);
+
+    /* Decrement reference count */
+    rc->n--;
+
+    /* Check if we should delete this object now */
+    if(rc->n==0) {
+        if((rc->free_func)(rc->o)<0) {
+            H5FL_FREE(H5RC_t,rc);
+            HGOTO_ERROR(H5E_RS,H5E_CANTFREE,FAIL,"memory release failed");
+        } /* end if */
+        H5FL_FREE(H5RC_t,rc);
+    } /* end if */
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value);
+} /* end H5RC_decr() */
+
diff --git a/src/H5RCprivate.h b/src/H5RCprivate.h
new file mode 100644
index 0000000..7f1dc3a
--- /dev/null
+++ b/src/H5RCprivate.h
@@ -0,0 +1,62 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
+ * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * This file contains private information about the H5RC module
+ */
+#ifndef _H5RCprivate_H
+#define _H5RCprivate_H
+
+/**************************************/
+/* Public headers needed by this file */
+/**************************************/
+#ifdef LATER
+#include "H5RCpublic.h"
+#endif /* LATER */
+
+/***************************************/
+/* Private headers needed by this file */
+/***************************************/
+#include "H5private.h"
+
+/************/
+/* Typedefs */
+/************/
+
+/* Typedef for function to release object when reference count drops to zero */
+typedef herr_t (*H5RC_free_func_t)(void *o);
+
+/* Typedef for reference counted objects */
+typedef struct H5RC_t {
+    void *o;            /* Object to be reference counted */
+    size_t n;           /* Reference count of number of pointers sharing object */
+    H5RC_free_func_t free_func; /* Function to free object */
+} H5RC_t;
+
+/**********/
+/* Macros */
+/**********/
+#define H5RC_INC(rc)            ((rc)->n++)
+#define H5RC_DEC(rc)            (H5RC_decr(rc))
+#define H5RC_GET_OBJ(rc)        ((rc)->o)
+
+/********************/
+/* Private routines */
+/********************/
+H5_DLL H5RC_t *H5RC_create(void *s, H5RC_free_func_t free_func);
+H5_DLL herr_t H5RC_decr(H5RC_t *rc);
+
+#endif /* _H5RSprivate_H */
+
+