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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: H5Fio.c
+ * Jan 10 2008
+ * Quincey Koziol <koziol@hdfgroup.org>
+ *
+ * Purpose: File I/O routines.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+/****************/
+/* Module Setup */
+/****************/
+
+#define H5F_PACKAGE /*suppress error about including H5Fpkg */
+
+
+/***********/
+/* 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_block_read
+ *
+ * Purpose: Reads some data from a file/server/etc into a buffer.
+ * The data is contiguous. The address is relative to the base
+ * address for the file.
+ *
+ * Return: Non-negative on success/Negative on failure
+ *
+ * Programmer: Robb Matzke
+ * matzke@llnl.gov
+ * Jul 10 1997
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5F_block_read(const H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size,
+ hid_t dxpl_id, void *buf/*out*/)
+{
+ htri_t accumulated; /* Whether the data was accepted by the metadata accumulator */
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_NOAPI(H5F_block_read, FAIL)
+
+ HDassert(f);
+ HDassert(f->shared);
+ HDassert(buf);
+
+ /* Check if this I/O can be satisfied by the metadata accumulator */
+ if((accumulated = H5F_accum_read(f, dxpl_id, type, addr, size, buf)) < 0)
+ HGOTO_ERROR(H5E_IO, H5E_READERROR, FAIL, "read from metadata accumulator failed")
+ else if(accumulated == FALSE) {
+ /* Read the data */
+ if(H5FD_read(f->shared->lf, dxpl_id, type, addr, size, buf) < 0)
+ HGOTO_ERROR(H5E_IO, H5E_READERROR, FAIL, "driver read request failed")
+ } /* end else */
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5F_block_read() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5F_block_write
+ *
+ * Purpose: Writes some data from memory to a file/server/etc. The
+ * data is contiguous. The address is relative to the base
+ * address.
+ *
+ * Return: Non-negative on success/Negative on failure
+ *
+ * Programmer: Robb Matzke
+ * matzke@llnl.gov
+ * Jul 10 1997
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5F_block_write(const H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size,
+ hid_t dxpl_id, const void *buf)
+{
+ htri_t accumulated; /* Whether the data was accepted by the metadata accumulator */
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_NOAPI(H5F_block_write, FAIL)
+#ifdef QAK
+HDfprintf(stderr, "%s: write to addr = %a, size = %Zu\n", FUNC, addr, size);
+#endif /* QAK */
+
+ HDassert(f);
+ HDassert(f->shared);
+ HDassert(f->intent & H5F_ACC_RDWR);
+ HDassert(buf);
+
+ /* Check for accumulating metadata */
+ if((accumulated = H5F_accum_write(f, dxpl_id, type, addr, size, buf)) < 0)
+ HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "write to metadata accumulator failed")
+ else if(accumulated == FALSE) {
+ /* Write the data */
+ if(H5FD_write(f->shared->lf, dxpl_id, type, addr, size, buf) < 0)
+ HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "file write failed")
+ } /* end else */
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5F_block_write() */
+