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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: H5FDint.c
+ * Jan 17 2008
+ * Quincey Koziol <koziol@hdfgroup.org>
+ *
+ * Purpose: Internal routine for VFD operations
+ *
+ *-------------------------------------------------------------------------
+ */
+
+/****************/
+/* Module Setup */
+/****************/
+
+#define H5FD_PACKAGE /*suppress error about including H5FDpkg */
+
+/* Interface initialization */
+#define H5_INTERFACE_INIT_FUNC H5FD_int_init_interface
+
+
+/***********/
+/* Headers */
+/***********/
+#include "H5private.h" /* Generic Functions */
+#include "H5Eprivate.h" /* Error handling */
+#include "H5Fprivate.h" /* File access */
+#include "H5FDpkg.h" /* File Drivers */
+#include "H5Iprivate.h" /* IDs */
+#include "H5Pprivate.h" /* Property lists */
+
+
+/****************/
+/* Local Macros */
+/****************/
+
+
+/******************/
+/* Local Typedefs */
+/******************/
+
+
+/********************/
+/* Package Typedefs */
+/********************/
+
+
+/********************/
+/* Local Prototypes */
+/********************/
+
+
+/*********************/
+/* Package Variables */
+/*********************/
+
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+
+/*******************/
+/* Local Variables */
+/*******************/
+
+
+
+/*--------------------------------------------------------------------------
+NAME
+ H5FD_int_init_interface -- Initialize interface-specific information
+USAGE
+ herr_t H5FD_int_init_interface()
+
+RETURNS
+ Non-negative on success/Negative on failure
+DESCRIPTION
+ Initializes any interface-specific data or routines. (Just calls
+ H5FD_init_iterface currently).
+
+--------------------------------------------------------------------------*/
+static herr_t
+H5FD_int_init_interface(void)
+{
+ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5FD_int_init_interface)
+
+ FUNC_LEAVE_NOAPI(H5FD_init())
+} /* H5FD_int_init_interface() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5FD_read
+ *
+ * Purpose: Private version of H5FDread()
+ *
+ * Return: Success: Non-negative
+ * Failure: Negative
+ *
+ * Programmer: Robb Matzke
+ * Wednesday, August 4, 1999
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5FD_read(H5FD_t *file, hid_t dxpl_id, H5FD_mem_t type, haddr_t addr,
+ size_t size, void *buf/*out*/)
+{
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_NOAPI(H5FD_read, FAIL)
+
+ HDassert(file && file->cls);
+ HDassert(H5I_GENPROP_LST == H5I_get_type(dxpl_id));
+ HDassert(TRUE == H5P_isa_class(dxpl_id, H5P_DATASET_XFER));
+ HDassert(buf);
+
+#ifndef H5_HAVE_PARALLEL
+ /* Do not return early for Parallel mode since the I/O could be a */
+ /* collective transfer. */
+ /* The no-op case */
+ if(0 == size)
+ HGOTO_DONE(SUCCEED)
+#endif /* H5_HAVE_PARALLEL */
+
+ /* Dispatch to driver */
+ if((file->cls->read)(file, type, dxpl_id, addr + file->base_addr, size, buf) < 0)
+ HGOTO_ERROR(H5E_VFL, H5E_READERROR, FAIL, "driver read request failed")
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5FD_read() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5FD_write
+ *
+ * Purpose: Private version of H5FDwrite()
+ *
+ * Return: Success: Non-negative
+ * Failure: Negative
+ *
+ * Programmer: Robb Matzke
+ * Wednesday, August 4, 1999
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5FD_write(H5FD_t *file, hid_t dxpl_id, H5FD_mem_t type, haddr_t addr,
+ size_t size, const void *buf)
+{
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_NOAPI(H5FD_write, FAIL)
+
+ HDassert(file && file->cls);
+ HDassert(H5I_GENPROP_LST == H5I_get_type(dxpl_id));
+ HDassert(TRUE == H5P_isa_class(dxpl_id, H5P_DATASET_XFER));
+ HDassert(buf);
+
+#ifndef H5_HAVE_PARALLEL
+ /* Do not return early for Parallel mode since the I/O could be a */
+ /* collective transfer. */
+ /* The no-op case */
+ if(0 == size)
+ HGOTO_DONE(SUCCEED)
+#endif /* H5_HAVE_PARALLEL */
+
+ /* Dispatch to driver */
+ if((file->cls->write)(file, type, dxpl_id, addr + file->base_addr, size, buf) < 0)
+ HGOTO_ERROR(H5E_VFL, H5E_WRITEERROR, FAIL, "driver write request failed")
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5FD_write() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5FD_set_eoa
+ *
+ * Purpose: Private version of H5FDset_eoa()
+ *
+ * Return: Success: Non-negative
+ * Failure: Negative, no side effect
+ *
+ * Programmer: Robb Matzke
+ * Wednesday, August 4, 1999
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5FD_set_eoa(H5FD_t *file, H5FD_mem_t type, haddr_t addr)
+{
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_NOAPI(H5FD_set_eoa, FAIL)
+
+ HDassert(file && file->cls);
+ HDassert(H5F_addr_defined(addr) && addr <= file->maxaddr);
+
+ /* Dispatch to driver */
+ if((file->cls->set_eoa)(file, type, addr + file->base_addr) < 0)
+ HGOTO_ERROR(H5E_VFL, H5E_CANTINIT, FAIL, "driver set_eoa request failed")
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5FD_set_eoa() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5FD_get_eoa
+ *
+ * Purpose: Private version of H5FDget_eoa()
+ *
+ * Return: Success: First byte after allocated memory.
+ * Failure: HADDR_UNDEF
+ *
+ * Programmer: Robb Matzke
+ * Wednesday, August 4, 1999
+ *
+ *-------------------------------------------------------------------------
+ */
+haddr_t
+H5FD_get_eoa(const H5FD_t *file, H5FD_mem_t type)
+{
+ haddr_t ret_value;
+
+ FUNC_ENTER_NOAPI(H5FD_get_eoa, HADDR_UNDEF)
+
+ HDassert(file && file->cls);
+
+ /* Dispatch to driver */
+ if(HADDR_UNDEF == (ret_value = (file->cls->get_eoa)(file, type)))
+ HGOTO_ERROR(H5E_VFL, H5E_CANTINIT, HADDR_UNDEF, "driver get_eoa request failed")
+
+ /* Adjust for base address in file */
+ ret_value -= file->base_addr;
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5FD_get_eoa() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5FD_get_eof
+ *
+ * Purpose: Private version of H5FDget_eof()
+ *
+ * Return: Success: The EOF address.
+ *
+ * Failure: HADDR_UNDEF
+ *
+ * Programmer: Robb Matzke
+ * Wednesday, August 4, 1999
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+haddr_t
+H5FD_get_eof(const H5FD_t *file)
+{
+ haddr_t ret_value;
+
+ FUNC_ENTER_NOAPI(H5FD_get_eof, HADDR_UNDEF)
+
+ HDassert(file && file->cls);
+
+ /* Dispatch to driver */
+ if(file->cls->get_eof) {
+ if(HADDR_UNDEF == (ret_value = (file->cls->get_eof)(file)))
+ HGOTO_ERROR(H5E_VFL, H5E_CANTINIT, HADDR_UNDEF, "driver get_eof request failed")
+ } /* end if */
+ else
+ ret_value = file->maxaddr;
+
+ /* Adjust for base address in file */
+ ret_value -= file->base_addr;
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5FD_get_eof() */
+
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