[svn-r15746] Description:

	Add support for extensible array "super block".

Tested on:
        Mac OS X/32 10.5.5 (amazon) in debug mode
        Mac OS X/32 10.5.5 (amazon) w/C++ & FORTRAN, w/threadsafe,
                                in production mode
        FreeBSD/32 6.3 (duty) in debug mode
        FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
        Linux/32 2.6 (kagiso) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe,
                                in debug mode
        Linux/64-amd64 2.6 (smirom) w/Intel compilers w/default API=1.6.x,
                                w/C++ & FORTRAN, in production mode
        Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                                w/szip filter, in production mode
        Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                                in production mode
        Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in production mode
        Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode

1 files changed, 397 insertions, 0 deletions

diff --git a/src/H5EAsblock.c b/src/H5EAsblock.c
new file mode 100644
index 0000000..89f4d4a
--- /dev/null
+++ b/src/H5EAsblock.c
@@ -0,0 +1,397 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * 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://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*-------------------------------------------------------------------------
+ *
+ * Created:		H5EAsblock.c
+ *			Sep 30 2008
+ *			Quincey Koziol <koziol@hdfgroup.org>
+ *
+ * Purpose:		Super block routines for extensible arrays.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+/**********************/
+/* Module Declaration */
+/**********************/
+
+#define H5EA_MODULE
+
+
+/***********************/
+/* Other Packages Used */
+/***********************/
+
+
+/***********/
+/* Headers */
+/***********/
+#include "H5private.h"		/* Generic Functions			*/
+#include "H5Eprivate.h"		/* Error handling		  	*/
+#include "H5EApkg.h"		/* Extensible Arrays			*/
+#include "H5FLprivate.h"	/* Free Lists                           */
+#include "H5MFprivate.h"	/* File memory management		*/
+#include "H5Vprivate.h"		/* Vectors and arrays 			*/
+
+
+/****************/
+/* Local Macros */
+/****************/
+
+
+/******************/
+/* Local Typedefs */
+/******************/
+
+
+/********************/
+/* Package Typedefs */
+/********************/
+
+
+/********************/
+/* Local Prototypes */
+/********************/
+
+
+/*********************/
+/* Package Variables */
+/*********************/
+
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+
+/*******************/
+/* Local Variables */
+/*******************/
+
+/* Declare a free list to manage the H5EA_iblock_t struct */
+H5FL_DEFINE_STATIC(H5EA_sblock_t);
+
+/* Declare a free list to manage the haddr_t sequence information */
+H5FL_SEQ_DEFINE_STATIC(haddr_t);
+
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5EA__sblock_alloc
+ *
+ * Purpose:	Allocate extensible array super block
+ *
+ * Return:	Non-NULL pointer to super block on success/NULL on failure
+ *
+ * Programmer:	Quincey Koziol
+ *		koziol@hdfgroup.org
+ *		Sep 30 2008
+ *
+ *-------------------------------------------------------------------------
+ */
+BEGIN_FUNC(PKG, ERR,
+H5EA_sblock_t *, NULL, NULL,
+H5EA__sblock_alloc(H5EA_hdr_t *hdr, unsigned sblk_idx))
+
+    /* Local variables */
+    H5EA_sblock_t *sblock = NULL;          /* Extensible array super block */
+
+    /* Check arguments */
+    HDassert(hdr);
+
+    /* Allocate memory for the index block */
+    if(NULL == (sblock = H5FL_CALLOC(H5EA_sblock_t)))
+	H5E_THROW(H5E_CANTALLOC, "memory allocation failed for extensible array super block")
+
+    /* Set non-zero internal fields */
+    sblock->addr = HADDR_UNDEF;
+
+    /* Compute/cache information */
+    sblock->idx = sblk_idx;
+    sblock->ndblks = hdr->sblk_info[sblk_idx].ndblks;
+    sblock->dblk_nelmts = hdr->sblk_info[sblk_idx].dblk_nelmts;
+#ifdef QAK
+HDfprintf(stderr, "%s: sblock->ndblks = %Zu\n", FUNC, sblock->ndblks);
+#endif /* QAK */
+
+    /* Allocate buffer for data block addresses in super block */
+    if(sblock->ndblks > 0)
+        if(NULL == (sblock->dblk_addrs = H5FL_SEQ_MALLOC(haddr_t, sblock->ndblks)))
+            H5E_THROW(H5E_CANTALLOC, "memory allocation failed for super block data block addresses")
+
+    /* Share common array information */
+    sblock->hdr = hdr;
+    if(H5EA__hdr_incr(hdr) < 0)
+	H5E_THROW(H5E_CANTINC, "can't increment reference count on shared array header")
+
+    /* Set the return value */
+    ret_value = sblock;
+
+CATCH
+    if(!ret_value)
+        if(sblock && H5EA__sblock_dest(hdr->f, sblock) < 0)
+            H5E_THROW(H5E_CANTFREE, "unable to destroy extensible array super block")
+
+END_FUNC(PKG)   /* end H5EA__sblock_alloc() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5EA__sblock_create
+ *
+ * Purpose:	Creates a new extensible array super block in the file
+ *
+ * Return:	Valid file address on success/HADDR_UNDEF on failure
+ *
+ * Programmer:	Quincey Koziol
+ *		koziol@hdfgroup.org
+ *		Sep 30 2008
+ *
+ *-------------------------------------------------------------------------
+ */
+BEGIN_FUNC(PKG, ERR,
+haddr_t, HADDR_UNDEF, HADDR_UNDEF,
+H5EA__sblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id, unsigned sblk_idx))
+
+    /* Local variables */
+    H5EA_sblock_t *sblock = NULL;      /* Extensible array super block */
+
+#ifdef QAK
+HDfprintf(stderr, "%s: Called\n", FUNC);
+#endif /* QAK */
+
+    /* Sanity check */
+    HDassert(hdr);
+
+    /* Allocate the super block */
+    if(NULL == (sblock = H5EA__sblock_alloc(hdr, sblk_idx)))
+	H5E_THROW(H5E_CANTALLOC, "memory allocation failed for extensible array super block")
+
+    /* Set size of super block on disk */
+    sblock->size = H5EA_SBLOCK_SIZE(sblock);
+#ifdef QAK
+HDfprintf(stderr, "%s: sblock->size = %Zu\n", FUNC, sblock->size);
+#endif /* QAK */
+
+    /* Allocate space for the super block on disk */
+    if(HADDR_UNDEF == (sblock->addr = H5MF_alloc(hdr->f, H5FD_MEM_EARRAY_SBLOCK, dxpl_id, (hsize_t)sblock->size)))
+	H5E_THROW(H5E_CANTALLOC, "file allocation failed for extensible array super block")
+
+    /* Reset data block addresses */
+    if(sblock->ndblks > 0) {
+        haddr_t tmp_addr = HADDR_UNDEF;         /* Address value to fill data block addresses with */
+
+        /* Set all the data block addresses to "undefined" address value */
+        H5V_array_fill(sblock->dblk_addrs, &tmp_addr, sizeof(haddr_t), sblock->ndblks);
+    } /* end if */
+
+    /* Cache the new extensible array super block */
+    if(H5AC_set(hdr->f, dxpl_id, H5AC_EARRAY_SBLOCK, sblock->addr, sblock, H5AC__NO_FLAGS_SET) < 0)
+	H5E_THROW(H5E_CANTINSERT, "can't add extensible array super block to cache")
+
+    /* Set address of super block to return */
+    ret_value = sblock->addr;
+
+CATCH
+    if(!H5F_addr_defined(ret_value))
+        if(sblock) {
+            /* Release super block's disk space */
+            if(H5F_addr_defined(sblock->addr) && H5MF_xfree(hdr->f, H5FD_MEM_EARRAY_SBLOCK, dxpl_id, sblock->addr, (hsize_t)sblock->size) < 0)
+                H5E_THROW(H5E_CANTFREE, "unable to release extensible array super block")
+
+            /* Destroy super block */
+            if(H5EA__sblock_dest(hdr->f, sblock) < 0)
+                H5E_THROW(H5E_CANTFREE, "unable to destroy extensible array super block")
+        } /* end if */
+
+END_FUNC(PKG)   /* end H5EA__sblock_create() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5EA__sblock_protect
+ *
+ * Purpose:	Convenience wrapper around protecting extensible array super block
+ *
+ * Return:	Non-NULL pointer to data block on success/NULL on failure
+ *
+ * Programmer:	Quincey Koziol
+ *		koziol@hdfgroup.org
+ *		Sep 30 2008
+ *
+ *-------------------------------------------------------------------------
+ */
+BEGIN_FUNC(PKG, ERR,
+H5EA_sblock_t *, NULL, NULL,
+H5EA__sblock_protect(H5EA_hdr_t *hdr, hid_t dxpl_id, haddr_t sblk_addr,
+    unsigned sblk_idx, H5AC_protect_t rw))
+
+    /* Local variables */
+
+#ifdef QAK
+HDfprintf(stderr, "%s: Called\n", FUNC);
+#endif /* QAK */
+
+    /* Sanity check */
+    HDassert(hdr);
+    HDassert(H5F_addr_defined(sblk_addr));
+
+    /* Protect the super block */
+    if(NULL == (ret_value = (H5EA_sblock_t *)H5AC_protect(hdr->f, dxpl_id, H5AC_EARRAY_SBLOCK, sblk_addr, &sblk_idx, hdr, rw)))
+        H5E_THROW(H5E_CANTPROTECT, "unable to protect extensible array super block, address = %llu", (unsigned long_long)sblk_addr)
+
+CATCH
+
+END_FUNC(PKG)   /* end H5EA__sblock_protect() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5EA__sblock_unprotect
+ *
+ * Purpose:	Convenience wrapper around unprotecting extensible array super block
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Quincey Koziol
+ *		koziol@hdfgroup.org
+ *		Sep 30 2008
+ *
+ *-------------------------------------------------------------------------
+ */
+BEGIN_FUNC(PKG, ERR,
+herr_t, SUCCEED, FAIL,
+H5EA__sblock_unprotect(H5EA_sblock_t *sblock, hid_t dxpl_id, unsigned cache_flags))
+
+    /* Local variables */
+
+#ifdef QAK
+HDfprintf(stderr, "%s: Called\n", FUNC);
+#endif /* QAK */
+
+    /* Sanity check */
+    HDassert(sblock);
+
+    /* Unprotect the super block */
+    if(H5AC_unprotect(sblock->hdr->f, dxpl_id, H5AC_EARRAY_SBLOCK, sblock->addr, sblock, cache_flags) < 0)
+        H5E_THROW(H5E_CANTUNPROTECT, "unable to unprotect extensible array super block, address = %llu", (unsigned long_long)sblock->addr)
+
+CATCH
+
+END_FUNC(PKG)   /* end H5EA__sblock_unprotect() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5EA__sblock_delete
+ *
+ * Purpose:	Delete a super block
+ *
+ * Return:	SUCCEED/FAIL
+ *
+ * Programmer:	Quincey Koziol
+ *		koziol@hdfgroup.org
+ *		Sep 30 2008
+ *
+ *-------------------------------------------------------------------------
+ */
+BEGIN_FUNC(PKG, ERR,
+herr_t, SUCCEED, FAIL,
+H5EA__sblock_delete(H5EA_hdr_t *hdr, hid_t dxpl_id, haddr_t sblk_addr,
+    unsigned sblk_idx))
+
+    /* Local variables */
+    H5EA_sblock_t *sblock = NULL;       /* Pointer to super block */
+
+#ifdef QAK
+HDfprintf(stderr, "%s: Called\n", FUNC);
+#endif /* QAK */
+
+    /* Sanity check */
+    HDassert(hdr);
+    HDassert(H5F_addr_defined(sblk_addr));
+
+    /* Protect super block */
+    if(NULL == (sblock = H5EA__sblock_protect(hdr, dxpl_id, sblk_addr, sblk_idx, H5AC_WRITE)))
+        H5E_THROW(H5E_CANTPROTECT, "unable to protect extensible array super block, address = %llu", (unsigned long_long)sblk_addr)
+
+    /* Check for super block having data block pointers */
+    if(sblock->ndblks > 0) {
+        size_t u;               /* Local index variable */
+
+        /* Iterate over data blocks */
+        for(u = 0; u < sblock->ndblks; u++) {
+            /* Check for data block existing */
+            if(H5F_addr_defined(sblock->dblk_addrs[u])) {
+                /* Delete data block */
+                if(H5EA__dblock_delete(hdr, dxpl_id, sblock->dblk_addrs[u], sblock->dblk_nelmts) < 0)
+                    H5E_THROW(H5E_CANTDELETE, "unable to delete extensible array data block")
+                sblock->dblk_addrs[u] = HADDR_UNDEF;
+            } /* end if */
+        } /* end for */
+    } /* end if */
+
+    /* Release super block's disk space */
+    if(H5MF_xfree(hdr->f, H5FD_MEM_EARRAY_SBLOCK, dxpl_id, sblk_addr, (hsize_t)sblock->size) < 0)
+        H5E_THROW(H5E_CANTFREE, "unable to free extensible array super block")
+
+CATCH
+    /* Finished deleting super block in metadata cache */
+    if(sblock && H5EA__sblock_unprotect(sblock, dxpl_id, H5AC__DIRTIED_FLAG | H5AC__DELETED_FLAG) < 0)
+        H5E_THROW(H5E_CANTUNPROTECT, "unable to release extensible array super block")
+
+END_FUNC(PKG)   /* end H5EA__sblock_delete() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5EA__sblock_dest
+ *
+ * Purpose:	Destroys an extensible array super block in memory.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Quincey Koziol
+ *		koziol@hdfgroup.org
+ *		Sep 30 2008
+ *
+ *-------------------------------------------------------------------------
+ */
+/* ARGSUSED */
+BEGIN_FUNC(PKG, ERR,
+herr_t, SUCCEED, FAIL,
+H5EA__sblock_dest(H5F_t *f, H5EA_sblock_t *sblock))
+
+    /* Sanity check */
+    HDassert(sblock);
+    HDassert(sblock->rc == 0);
+
+    /* Set the shared array header's file context for this operation */
+    sblock->hdr->f = f;
+
+    /* Check if we've got data block addresses in the super block */
+    if(sblock->ndblks > 0) {
+        /* Free buffer for super block data block addresses */
+        HDassert(sblock->dblk_addrs);
+        (void)H5FL_SEQ_FREE(haddr_t, sblock->dblk_addrs);
+    } /* end if */
+
+    /* Decrement reference count on shared info */
+    if(H5EA__hdr_decr(sblock->hdr) < 0)
+        H5E_THROW(H5E_CANTDEC, "can't decrement reference count on shared array header")
+
+    /* Free the super block itself */
+    (void)H5FL_FREE(H5EA_sblock_t, sblock);
+
+CATCH
+
+END_FUNC(PKG)   /* end H5EA__sblock_dest() */
+