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authorQuincey Koziol <koziol@hdfgroup.org>2017-03-14 04:30:37 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2017-03-14 04:30:37 (GMT)
commit0313cbb91d974b153dbe8747d193ac3c619eea3b (patch)
treeaf6c4a631d5753685ee0033a6a8415a25fc97672 /src/H5Fspace.c
parent847d675f2743ec420ef6c9efdd6e52ae93b4fe44 (diff)
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Final merge of page buffering branch to develop
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diff --git a/src/H5Fspace.c b/src/H5Fspace.c
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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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: H5Fspace.c
+ * Dec 30 2013
+ * Quincey Koziol <koziol@hdfgroup.org>
+ *
+ * Purpose: Space allocation routines for the file.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+/****************/
+/* Module Setup */
+/****************/
+
+#include "H5Fmodule.h" /* This source code file is part of the H5F module */
+
+
+/***********/
+/* Headers */
+/***********/
+#include "H5private.h" /* Generic Functions */
+#include "H5Eprivate.h" /* Error handling */
+#include "H5Fpkg.h" /* File access */
+#include "H5FDprivate.h" /* File drivers */
+
+
+/****************/
+/* Local Macros */
+/****************/
+
+
+/******************/
+/* Local Typedefs */
+/******************/
+
+
+/********************/
+/* Package Typedefs */
+/********************/
+
+
+/********************/
+/* Local Prototypes */
+/********************/
+
+
+/*********************/
+/* Package Variables */
+/*********************/
+
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+
+/*******************/
+/* Local Variables */
+/*******************/
+
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5F_alloc
+ *
+ * Purpose: Wrapper for H5FD_alloc, to make certain EOA changes are
+ * reflected in superblock.
+ *
+ * Note: When the metadata cache routines are updated to allow
+ * marking an entry dirty without a H5F_t*, this routine should
+ * be changed to take a H5F_super_t* directly.
+ *
+ * Return: Success: The format address of the new file memory.
+ * Failure: The undefined address HADDR_UNDEF
+ *
+ * Programmer: Quincey Koziol
+ * Monday, December 30, 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+haddr_t
+H5F_alloc(H5F_t *f, hid_t dxpl_id, H5F_mem_t type, hsize_t size, haddr_t *frag_addr, hsize_t *frag_size)
+{
+ haddr_t ret_value = 0; /* Return value */
+
+ FUNC_ENTER_NOAPI(HADDR_UNDEF)
+
+ /* check args */
+ HDassert(f);
+ HDassert(f->shared);
+ HDassert(f->shared->lf);
+ HDassert(type >= H5FD_MEM_DEFAULT && type < H5FD_MEM_NTYPES);
+ HDassert(size > 0);
+
+ /* Check whether the file can use temporary addresses */
+ if(f->shared->use_tmp_space) {
+ haddr_t eoa; /* Current EOA for the file */
+
+ /* Get the EOA for the file */
+ if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, type)))
+ HGOTO_ERROR(H5E_FILE, H5E_CANTGET, HADDR_UNDEF, "Unable to get eoa")
+
+ /* Check for overlapping into file's temporary allocation space */
+ if(H5F_addr_gt((eoa + size), f->shared->tmp_addr))
+ HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, HADDR_UNDEF, "'normal' file space allocation request will overlap into 'temporary' file space")
+ } /* end if */
+
+ /* Call the file driver 'alloc' routine */
+ ret_value = H5FD_alloc(f->shared->lf, dxpl_id, type, f, size, frag_addr, frag_size);
+ if(!H5F_addr_defined(ret_value))
+ HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, HADDR_UNDEF, "file driver 'alloc' request failed")
+
+ /* Mark EOA dirty */
+ if(H5F_eoa_dirty(f, dxpl_id) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, HADDR_UNDEF, "unable to mark EOA as dirty")
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5F_alloc() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5F_free
+ *
+ * Purpose: Wrapper for H5FD_free, to make certain EOA changes are
+ * reflected in superblock.
+ *
+ * Note: When the metadata cache routines are updated to allow
+ * marking an entry dirty without a H5F_t*, this routine should
+ * be changed to take a H5F_super_t* directly.
+ *
+ * Return: Success: Non-negative
+ * Failure: Negative
+ *
+ * Programmer: Quincey Koziol
+ * Monday, December 30, 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5F_free(H5F_t *f, hid_t dxpl_id, H5FD_mem_t type, haddr_t addr, hsize_t size)
+{
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_NOAPI(FAIL)
+
+ /* Check args */
+ HDassert(f);
+ HDassert(f->shared);
+ HDassert(f->shared->lf);
+ HDassert(type >= H5FD_MEM_DEFAULT && type < H5FD_MEM_NTYPES);
+ HDassert(size > 0);
+
+ /* Call the file driver 'free' routine */
+ if(H5FD_free(f->shared->lf, dxpl_id, type, f, addr, size) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "file driver 'free' request failed")
+
+ /* Mark EOA dirty */
+ if(H5F_eoa_dirty(f, dxpl_id) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark EOA as dirty")
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5F_free() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5F_try_extend
+ *
+ * Purpose: Extend a block at the end of the file, if possible.
+ *
+ * Note: When the metadata cache routines are updated to allow
+ * marking an entry dirty without a H5F_t*, this routine should
+ * be changed to take a H5F_super_t* directly.
+ *
+ * Return: Success: TRUE(1) - Block was extended
+ * FALSE(0) - Block could not be extended
+ * Failure: FAIL
+ *
+ * Programmer: Quincey Koziol
+ * Monday, 30 December, 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+htri_t
+H5F_try_extend(H5F_t *f, hid_t dxpl_id, H5FD_mem_t type, haddr_t blk_end, hsize_t extra_requested)
+{
+ htri_t ret_value = FALSE; /* Return value */
+
+ FUNC_ENTER_NOAPI(FAIL)
+
+ /* check args */
+ HDassert(f);
+ HDassert(f->shared);
+ HDassert(f->shared->lf);
+ HDassert(type >= H5FD_MEM_DEFAULT && type < H5FD_MEM_NTYPES);
+ HDassert(extra_requested > 0);
+
+ /* Extend the object by extending the underlying file */
+ if((ret_value = H5FD_try_extend(f->shared->lf, type, f, dxpl_id, blk_end, extra_requested)) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTEXTEND, FAIL, "driver try extend request failed")
+
+ /* H5FD_try_extend() updates driver message and marks the superblock
+ * dirty, so no need to do it again here.
+ */
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5F_try_extend() */
+