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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#define H5F_PACKAGE /*suppress error about including H5Fpkg */
/* Interface initialization */
#define H5_INTERFACE_INIT_FUNC H5F__init_pub_interface
/* Packages needed by this file... */
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Fpkg.h" /* File access */
#include "H5Iprivate.h" /* IDs */
#include "H5MMprivate.h" /* Memory management */
#include "H5Pprivate.h" /* Property lists */
#include "H5VLnative.h" /* Native Plugin */
#include "H5VLprivate.h" /* VOL plugins */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*--------------------------------------------------------------------------
NAME
H5F__init_pub_interface -- Initialize interface-specific information
USAGE
herr_t H5F__init_pub_interface()
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Initializes any interface-specific data or routines. (Just calls
H5F_init() currently).
--------------------------------------------------------------------------*/
static herr_t
H5F__init_pub_interface(void)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_STATIC
/*
* Initialize the atom group for the file IDs.
*/
if(H5I_register_type(H5I_FILE, (size_t)H5I_FILEID_HASHSIZE, 0,
NULL, (H5I_free2_t)H5F_close_file)<H5I_FILE)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to initialize interface")
ret_value = H5F_init();
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5F__init_pub_interface() */
/*-------------------------------------------------------------------------
* Function: H5F_init
*
* Purpose: Initialize the interface from some other layer.
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Robb Matzke
* Wednesday, December 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_init(void)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* FUNC_ENTER() does all the work */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_init() */
/*-------------------------------------------------------------------------
* Function: H5F_term_interface
*
* Purpose: Terminate this interface: free all memory and reset global
* variables to their initial values. Release all ID groups
* associated with this interface.
*
* Return: Success: Positive if anything was done that might
* have affected other interfaces; zero
* otherwise.
*
* Failure: Never fails.
*
* Programmer: Robb Matzke
* Friday, February 19, 1999
*
*-------------------------------------------------------------------------
*/
int
H5F_term_interface(void)
{
int n = 0;
FUNC_ENTER_NOAPI_NOINIT_NOERR
if(H5_interface_initialize_g) {
if((n = H5I_nmembers(H5I_FILE)) != 0) {
H5I_clear_type(H5I_FILE, FALSE, FALSE);
} else {
/* Make certain we've cleaned up all the shared file objects */
H5F_sfile_assert_num(0);
H5I_dec_type_ref(H5I_FILE);
H5_interface_initialize_g = 0;
n = 1; /*H5I*/
} /* end else */
} /* end if */
FUNC_LEAVE_NOAPI(n)
} /* H5F_term_interface() */
/*-------------------------------------------------------------------------
* Function: H5Fget_create_plist
*
* Purpose: Get an atom for a copy of the file-creation property list for
* this file. This function returns an atom with a copy of the
* properties used to create a file.
*
* Return: Success: template ID
*
* Failure: FAIL
*
* Programmer: Unknown
*
*-------------------------------------------------------------------------
*/
hid_t
H5Fget_create_plist(hid_t file_id)
{
H5VL_t *vol_plugin = NULL;
void *obj = NULL;
hid_t ret_value; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("i", "i", file_id);
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
if(H5VL_file_get(obj, vol_plugin, H5VL_FILE_GET_FCPL, H5_REQUEST_NULL, &ret_value) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file creation properties")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_create_plist() */
/*-------------------------------------------------------------------------
* Function: H5Fget_access_plist
*
* Purpose: Returns a copy of the file access property list of the
* specified file.
*
* NOTE: Make sure that, if you are going to overwrite
* information in the copied property list that was
* previously opened and assigned to the property list, then
* you must close it before overwriting the values.
*
* Return: Success: Object ID for a copy of the file access
* property list.
*
* Failure: FAIL
*
* Programmer: Robb Matzke
* Wednesday, February 18, 1998
*
*-------------------------------------------------------------------------
*/
hid_t
H5Fget_access_plist(hid_t file_id)
{
H5VL_t *vol_plugin;
void *obj;
hid_t ret_value; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("i", "i", file_id);
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
if(H5VL_file_get(obj, vol_plugin, H5VL_FILE_GET_FAPL, H5_REQUEST_NULL, &ret_value) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file creation properties")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_access_plist() */
/*-------------------------------------------------------------------------
* Function: H5Fget_obj_count
*
* Purpose: Public function returning the number of opened object IDs
* (files, datasets, groups and datatypes) in the same file.
*
* Return: Non-negative on success; negative on failure.
*
* Programmer: Raymond Lu
* Wednesday, Dec 5, 2001
*
*-------------------------------------------------------------------------
*/
ssize_t
H5Fget_obj_count(hid_t file_id, unsigned types)
{
ssize_t ret_value = 0; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("Zs", "iIu", file_id, types);
if(0 == (types & H5F_OBJ_ALL))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not an object type")
if(file_id != (hid_t)H5F_OBJ_ALL) {
H5VL_t *vol_plugin;
void *obj;
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
if(H5VL_file_get(obj, vol_plugin, H5VL_FILE_GET_OBJ_COUNT, H5_REQUEST_NULL, &ret_value, types) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get object count in file(s)")
}
/* iterate over all open files and get the obj count for each */
else {
H5F_trav_obj_cnt_t udata;
udata.obj_count = &ret_value;
udata.types = types | H5F_OBJ_LOCAL;
if(H5I_iterate(H5I_FILE, H5F_get_obj_count_cb, &udata, TRUE) < 0)
HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(1)")
}
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_obj_count() */
/*-------------------------------------------------------------------------
* Function: H5Fget_object_ids
*
* Purpose: Public function to return a list of opened object IDs.
*
* Return: Non-negative on success; negative on failure.
*
* Programmer: Raymond Lu
* Wednesday, Dec 5, 2001
*
* Modification:
* Raymond Lu
* 24 September 2008
* Changed the return value to ssize_t and MAX_OBJTS to size_t to
* accommadate potential large number of objects.
*
*-------------------------------------------------------------------------
*/
ssize_t
H5Fget_obj_ids(hid_t file_id, unsigned types, size_t max_objs, hid_t *oid_list)
{
ssize_t ret_value = 0; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE4("Zs", "iIuz*i", file_id, types, max_objs, oid_list);
if(0 == (types & H5F_OBJ_ALL))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not an object type")
HDassert(oid_list);
/* Check arguments */
if(file_id != (hid_t)H5F_OBJ_ALL) {
H5VL_t *vol_plugin;
void *obj;
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if(H5VL_file_get(obj, vol_plugin, H5VL_FILE_GET_OBJ_IDS, H5_REQUEST_NULL,
types, max_objs, oid_list, &ret_value) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get object count in file(s)")
}
/* iterate over all open files and get the obj count for each */
else {
H5F_trav_obj_ids_t udata;
udata.types = types | H5F_OBJ_LOCAL;
udata.max_objs = max_objs;
udata.oid_list = oid_list;
udata.obj_count = &ret_value;
if(H5I_iterate(H5I_FILE, H5F_get_obj_ids_cb, &udata, TRUE) < 0)
HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(1)")
}
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_obj_ids() */
/*-------------------------------------------------------------------------
* Function: H5Fget_vfd_handle
*
* Purpose: Returns a pointer to the file handle of the low-level file
* driver.
*
* Return: Success: non-negative value.
* Failure: negative.
*
* Programmer: Raymond Lu
* Sep. 16, 2002
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fget_vfd_handle(hid_t file_id, hid_t fapl, void **file_handle)
{
H5VL_t *vol_plugin;
void *obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE3("e", "ii**x", file_id, fapl, file_handle);
/* Check args */
if(!file_handle)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid file handle pointer")
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if((ret_value = H5VL_file_optional(obj, vol_plugin, H5VL_FILE_GET_VFD_HANDLE,
H5_REQUEST_NULL, file_handle, fapl)) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file handle")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_vfd_handle() */
/*-------------------------------------------------------------------------
* Function: H5Fis_accessible
*
* Purpose: Check if the file can be opened with the given fapl.
*
* Return: Success: TRUE/FALSE
* Failure: Negative
*
* Programmer: Mohamad Chaarawi
* June 2012
*
*-------------------------------------------------------------------------
*/
htri_t
H5Fis_accessible(const char *name, hid_t fapl_id)
{
htri_t ret_value = TRUE; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("t", "*si", name, fapl_id);
/* Check args and all the boring stuff. */
if(!name || !*name)
HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, FAIL, "no file name specified")
if(H5VL_file_misc(NULL, NULL, H5VL_FILE_IS_ACCESSIBLE, H5_REQUEST_NULL,
fapl_id, name, &ret_value) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file handle")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fis_accessible() */
/*-------------------------------------------------------------------------
* Function: H5Fcreate
*
* Purpose: This is the primary function for creating HDF5 files . The
* flags parameter determines whether an existing file will be
* overwritten or not. All newly created files are opened for
* both reading and writing. All flags may be combined with the
* bit-wise OR operator (`|') to change the behavior of the file
* create call.
*
* The more complex behaviors of a file's creation and access
* are controlled through the file-creation and file-access
* property lists. The value of H5P_DEFAULT for a template
* value indicates that the library should use the default
* values for the appropriate template.
*
* See also: H5Fpublic.h for the list of supported flags. H5Ppublic.h for
* the list of file creation and file access properties.
*
* Return: Success: A file ID
*
* Failure: FAIL
*
* Programmer: Unknown
*
*-------------------------------------------------------------------------
*/
hid_t
H5Fcreate(const char *filename, unsigned flags, hid_t fcpl_id, hid_t fapl_id)
{
void *file = NULL; /*file token from VOL plugin */
H5VL_t *vol_plugin; /* VOL plugin information */
hid_t ret_value; /*return value */
FUNC_ENTER_API(FAIL)
H5TRACE4("i", "*sIuii", filename, flags, fcpl_id, fapl_id);
/* Check/fix arguments */
if(!filename || !*filename)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid file name")
/* In this routine, we only accept the following flags:
* H5F_ACC_EXCL, H5F_ACC_TRUNC and H5F_ACC_DEBUG
*/
if(flags & ~(H5F_ACC_EXCL | H5F_ACC_TRUNC | H5F_ACC_DEBUG))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid flags")
/* The H5F_ACC_EXCL and H5F_ACC_TRUNC flags are mutually exclusive */
if((flags & H5F_ACC_EXCL) && (flags & H5F_ACC_TRUNC))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "mutually exclusive flags for file creation")
/* Check file creation property list */
if(H5P_DEFAULT == fcpl_id)
fcpl_id = H5P_FILE_CREATE_DEFAULT;
else
if(TRUE != H5P_isa_class(fcpl_id, H5P_FILE_CREATE))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not file create property list")
/* Check the file access property list */
if(H5P_DEFAULT == fapl_id)
fapl_id = H5P_FILE_ACCESS_DEFAULT;
else
if(TRUE != H5P_isa_class(fapl_id, H5P_FILE_ACCESS))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not file access property list")
/* create a new file or truncate an existing file through the VOL */
if(NULL == (file = H5VL_file_create(&vol_plugin, filename, flags, fcpl_id, fapl_id, H5_REQUEST_NULL)))
HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to create file")
/* Get an atom for the file with the VOL information as the auxilary struct*/
if((ret_value = H5I_register2(H5I_FILE, file, vol_plugin, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize file handle")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fcreate() */
/*-------------------------------------------------------------------------
* Function: H5Fopen
*
* Purpose: This is the primary function for accessing existing HDF5
* files. The FLAGS argument determines whether writing to an
* existing file will be allowed or not. All flags may be
* combined with the bit-wise OR operator (`|') to change the
* behavior of the file open call. The more complex behaviors
* of a file's access are controlled through the file-access
* property list.
*
* See Also: H5Fpublic.h for a list of possible values for FLAGS.
*
* Return: Success: A file ID
*
* Failure: FAIL
*
* Programmer: Unknown
*
* Modifications:
* Robb Matzke, 1997-07-18
* File struct creation and destruction is through H5F_new() and
* H5F_dest(). Reading the root symbol table entry is done with
* H5G_decode().
*
* Robb Matzke, 1997-09-23
* Most of the work is now done by H5F_open() since H5Fcreate()
* and H5Fopen() originally contained almost identical code.
*
* Robb Matzke, 1998-02-18
* Added better error checking for the flags and the file access
* property list. It used to be possible to make the library
* dump core by passing an object ID that was not a file access
* property list.
*
* Robb Matzke, 1999-08-02
* The file access property list is passed to the H5F_open() as
* object IDs.
*-------------------------------------------------------------------------
*/
hid_t
H5Fopen(const char *filename, unsigned flags, hid_t fapl_id)
{
void *file = NULL; /*file token from VOL plugin */
H5VL_t *vol_plugin; /* VOL plugin information */
hid_t ret_value; /*return value */
FUNC_ENTER_API(FAIL)
H5TRACE3("i", "*sIui", filename, flags, fapl_id);
/* Check/fix arguments. */
if(!filename || !*filename)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid file name")
/* Reject undefined flags (~H5F_ACC_PUBLIC_FLAGS) and the H5F_ACC_TRUNC & H5F_ACC_EXCL flags */
if((flags & ~H5F_ACC_PUBLIC_FLAGS) ||
(flags & H5F_ACC_TRUNC) || (flags & H5F_ACC_EXCL))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid file open flags")
if(H5P_DEFAULT == fapl_id)
fapl_id = H5P_FILE_ACCESS_DEFAULT;
else
if(TRUE != H5P_isa_class(fapl_id, H5P_FILE_ACCESS))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not file access property list")
/* Open the file through the VOL layer */
if(NULL == (file = H5VL_file_open(&vol_plugin, filename, flags, fapl_id, H5_REQUEST_NULL)))
HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to create file")
/* Get an atom for the file with the VOL information as the auxilary struct*/
if((ret_value = H5I_register2(H5I_FILE, file, vol_plugin, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize file handle")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fopen() */
/*-------------------------------------------------------------------------
* Function: H5Fflush
*
* Purpose: Flushes all outstanding buffers of a file to disk but does
* not remove them from the cache. The OBJECT_ID can be a file,
* dataset, group, attribute, or named data type.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Thursday, August 6, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fflush(hid_t object_id, H5F_scope_t scope)
{
H5VL_t *vol_plugin;
void *obj;
H5I_type_t obj_type;
H5VL_loc_params_t loc_params;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "iFs", object_id, scope);
obj_type = H5I_get_type(object_id);
if(H5I_FILE != obj_type && H5I_GROUP != obj_type && H5I_DATATYPE != obj_type &&
H5I_DATASET != obj_type && H5I_ATTR != obj_type) {
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
}
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(object_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5VL_get_object(object_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
loc_params.type = H5VL_OBJECT_BY_SELF;
loc_params.obj_type = obj_type;
if((ret_value = H5VL_file_flush(obj, loc_params, vol_plugin, scope, H5_REQUEST_NULL)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush file")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fflush() */
/*-------------------------------------------------------------------------
* Function: H5Fclose
*
* Purpose: This function closes the file specified by FILE_ID by
* flushing all data to storage, and terminating access to the
* file through FILE_ID. If objects (e.g., datasets, groups,
* etc.) are open in the file then the underlying storage is not
* closed until those objects are closed; however, all data for
* the file and the open objects is flushed.
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Saturday, February 20, 1999
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fclose(hid_t file_id)
{
herr_t ret_value = SUCCEED;
FUNC_ENTER_API(FAIL)
H5TRACE1("e", "i", file_id);
/* Check/fix arguments. */
if(H5I_FILE != H5I_get_type(file_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file ID")
/* Decrement reference count on atom. When it reaches zero the file will be closed. */
if(H5I_dec_app_ref(file_id) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTCLOSEFILE, FAIL, "decrementing file ID failed")
#if 0
void *file; /*file token from VOL plugin */
H5VL_t *vol_plugin; /* VOL plugin information */
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (file = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
/* Close the file through the VOL*/
if((ret_value = H5VL_file_close(file, vol_plugin, H5_REQUEST_NULL)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "unable to close file")
H5MM_free(vol_plugin);
#endif
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fclose() */
/*-------------------------------------------------------------------------
* Function: H5F_close_file
*
* Purpose: Called when the ref count reaches zero on the file_id
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Mohamad Chaarawi
* June 2012
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_close_file(void *file, H5VL_t *vol_plugin)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Close the file through the VOL*/
if((ret_value = H5VL_file_close(file, vol_plugin, H5_REQUEST_NULL)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "unable to close file")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_close_file() */
/*-------------------------------------------------------------------------
* Function: H5Freopen
*
* Purpose: Reopen a file. The new file handle which is returned points
* to the same file as the specified file handle. Both handles
* share caches and other information. The only difference
* between the handles is that the new handle is not mounted
* anywhere and no files are mounted on it.
*
* Return: Success: New file ID
*
* Failure: FAIL
*
* Programmer: Robb Matzke
* Friday, October 16, 1998
*
* Modifications:
* Quincey Koziol, May 14, 2002
* Keep old file's read/write intent in reopened file.
*
*-------------------------------------------------------------------------
*/
hid_t
H5Freopen(hid_t file_id)
{
H5VL_t *vol_plugin;
void *obj;
void *file; /*file token from VOL plugin */
hid_t ret_value;
FUNC_ENTER_API(FAIL)
H5TRACE1("i", "i", file_id);
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if(H5VL_file_optional(obj, vol_plugin, H5VL_FILE_REOPEN, H5_REQUEST_NULL, &file) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to reopen file")
if (NULL == file)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to reopen file")
/* Get an atom for the file with the VOL information as the auxilary struct*/
if((ret_value = H5I_register2(H5I_FILE, file, vol_plugin, TRUE)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize file handle")
vol_plugin->nrefs ++;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Freopen() */
/*-------------------------------------------------------------------------
* Function: H5Fget_intent
*
* Purpose: Public API to retrieve the file's 'intent' flags passed
* during H5Fopen()
*
* Return: Non-negative on success/negative on failure
*
* Programmer: James Laird
* August 23, 2006
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fget_intent(hid_t file_id, unsigned *intent_flags)
{
herr_t ret_value = SUCCEED;
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "i*Iu", file_id, intent_flags);
/* If no intent flags were passed in, exit quietly */
if(intent_flags) {
H5VL_t *vol_plugin;
void *obj;
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if((ret_value = H5VL_file_get(obj, vol_plugin, H5VL_FILE_GET_INTENT, H5_REQUEST_NULL, intent_flags)) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file intent")
}
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_intent() */
/*-------------------------------------------------------------------------
* Function: H5Fget_freespace
*
* Purpose: Retrieves the amount of free space in the file.
*
* Return: Success: Amount of free space for type
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Oct 6, 2003
*
*-------------------------------------------------------------------------
*/
hssize_t
H5Fget_freespace(hid_t file_id)
{
H5VL_t *vol_plugin;
void *obj;
hssize_t ret_value; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("Hs", "i", file_id);
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if(H5VL_file_optional(obj, vol_plugin, H5VL_FILE_GET_FREE_SPACE, H5_REQUEST_NULL, &ret_value) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file free space")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_freespace() */
/*-------------------------------------------------------------------------
* Function: H5Fget_filesize
*
* Purpose: Retrieves the file size of the HDF5 file. This function
* is called after an existing file is opened in order
* to learn the true size of the underlying file.
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: David Pitt
* david.pitt@bigpond.com
* Apr 27, 2004
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fget_filesize(hid_t file_id, hsize_t *size)
{
H5VL_t *vol_plugin;
void *obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "i*h", file_id, size);
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if((ret_value = H5VL_file_optional(obj, vol_plugin, H5VL_FILE_GET_SIZE, H5_REQUEST_NULL, size)) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file size")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_filesize() */
/*-------------------------------------------------------------------------
* Function: H5Fget_file_image
*
* Purpose: If a buffer is provided (via the buf_ptr argument) and is
* big enough (size in buf_len argument), load *buf_ptr with
* an image of the open file whose ID is provided in the
* file_id parameter, and return the number of bytes copied
* to the buffer.
*
* If the buffer exists, but is too small to contain an image
* of the indicated file, return a negative number.
*
* Finally, if no buffer is provided, return the size of the
* buffer needed. This value is simply the eoa of the target
* file.
*
* Note that any user block is skipped.
*
* Also note that the function may not be used on files
* opened with either the split/multi file driver or the
* family file driver.
*
* In the former case, the sparse address space makes the
* get file image operation impractical, due to the size of
* the image typically required.
*
* In the case of the family file driver, the problem is
* the driver message in the super block, which will prevent
* the image being opened with any driver other than the
* family file driver -- which negates the purpose of the
* operation. This can be fixed, but no resources for
* this now.
*
* Return: Success: Bytes copied / number of bytes needed.
* Failure: negative value
*
* Programmer: John Mainzer
* 11/15/11
*
*-------------------------------------------------------------------------
*/
ssize_t
H5Fget_file_image(hid_t file_id, void *buf_ptr, size_t buf_len)
{
H5VL_t *vol_plugin;
void *obj;
ssize_t ret_value; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE3("Zs", "i*xz", file_id, buf_ptr, buf_len);
/* check id */
if(H5I_FILE != H5I_get_type(file_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file")
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
/* get image through the VOL */
if(H5VL_file_optional(obj, vol_plugin, H5VL_FILE_GET_FILE_IMAGE, H5_REQUEST_NULL,
buf_ptr, &ret_value, buf_len) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file image")
done:
FUNC_LEAVE_API(ret_value)
} /* H5Fget_file_image() */
/*-------------------------------------------------------------------------
* Function: H5Fget_mdc_config
*
* Purpose: Retrieves the current automatic cache resize configuration
* from the metadata cache, and return it in *config_ptr.
*
* Note that the version field of *config_Ptr must be correctly
* filled in by the caller. This allows us to adapt for
* obsolete versions of the structure.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: John Mainzer
* 3/24/05
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fget_mdc_config(hid_t file_id, H5AC_cache_config_t *config_ptr)
{
H5VL_t *vol_plugin;
void *obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "i*x", file_id, config_ptr);
/* check args */
if((NULL == config_ptr) || (config_ptr->version != H5AC__CURR_CACHE_CONFIG_VERSION))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "Bad config_ptr")
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if((ret_value = H5VL_file_optional(obj, vol_plugin, H5VL_FILE_GET_MDC_CONF, H5_REQUEST_NULL,
config_ptr)) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get mdc configuration")
done:
FUNC_LEAVE_API(ret_value)
} /* H5Fget_mdc_config() */
/*-------------------------------------------------------------------------
* Function: H5Fset_mdc_config
*
* Purpose: Sets the current metadata cache automatic resize
* configuration, using the contents of the instance of
* H5AC_cache_config_t pointed to by config_ptr.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: John Mainzer
* 3/24/05
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fset_mdc_config(hid_t file_id, H5AC_cache_config_t *config_ptr)
{
H5VL_t *vol_plugin;
void *obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "i*x", file_id, config_ptr);
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if(H5VL_file_optional(obj, vol_plugin, H5VL_FILE_SET_MDC_CONFIG, H5_REQUEST_NULL, config_ptr) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "uanvle to set MDC configuration")
done:
FUNC_LEAVE_API(ret_value)
} /* H5Fset_mdc_config() */
/*-------------------------------------------------------------------------
* Function: H5Fget_mdc_hit_rate
*
* Purpose: Retrieves the current hit rate from the metadata cache.
* This rate is the overall hit rate since the last time
* the hit rate statistics were reset either manually or
* automatically.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: John Mainzer
* 3/24/05
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fget_mdc_hit_rate(hid_t file_id, double *hit_rate_ptr)
{
H5VL_t *vol_plugin;
void *obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "i*d", file_id, hit_rate_ptr);
if(NULL == hit_rate_ptr)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "NULL hit rate pointer")
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if((ret_value = H5VL_file_optional(obj, vol_plugin, H5VL_FILE_GET_MDC_HR, H5_REQUEST_NULL,
hit_rate_ptr)) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get MDC hit rate")
done:
FUNC_LEAVE_API(ret_value)
} /* H5Fget_mdc_hit_rate() */
/*-------------------------------------------------------------------------
* Function: H5Fget_mdc_size
*
* Purpose: Retrieves the maximum size, minimum clean size, current
* size, and current number of entries from the metadata
* cache associated with the specified file. If any of
* the ptr parameters are NULL, the associated datum is
* not returned.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: John Mainzer
* 3/24/05
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fget_mdc_size(hid_t file_id, size_t *max_size_ptr, size_t *min_clean_size_ptr,
size_t *cur_size_ptr, int *cur_num_entries_ptr)
{
H5VL_t *vol_plugin;
void *obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE5("e", "i*z*z*z*Is", file_id, max_size_ptr, min_clean_size_ptr,
cur_size_ptr, cur_num_entries_ptr);
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if((ret_value = H5VL_file_optional(obj, vol_plugin, H5VL_FILE_GET_MDC_SIZE, H5_REQUEST_NULL, max_size_ptr,
min_clean_size_ptr, cur_size_ptr, cur_num_entries_ptr)) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get MDC size")
done:
FUNC_LEAVE_API(ret_value)
} /* H5Fget_mdc_size() */
/*-------------------------------------------------------------------------
* Function: H5Freset_mdc_hit_rate_stats
*
* Purpose: Reset the hit rate statistic whose current value can
* be obtained via the H5Fget_mdc_hit_rate() call. Note
* that this statistic will also be reset once per epoch
* by the automatic cache resize code if it is enabled.
*
* It is probably a bad idea to call this function unless
* you are controlling cache size from your program instead
* of using our cache size control code.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: John Mainzer
* 3/24/05
*
*-------------------------------------------------------------------------
*/
herr_t
H5Freset_mdc_hit_rate_stats(hid_t file_id)
{
H5VL_t *vol_plugin;
void *obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("e", "i", file_id);
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if(H5VL_file_optional(obj, vol_plugin, H5VL_FILE_RESET_MDC_HIT_RATE, H5_REQUEST_NULL) < 0)
HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "can't reset cache hit rate")
done:
FUNC_LEAVE_API(ret_value)
} /* H5Freset_mdc_hit_rate_stats() */
/*-------------------------------------------------------------------------
* Function: H5Fget_name
*
* Purpose: Gets the name of the file to which object OBJ_ID belongs.
* If `name' is non-NULL then write up to `size' bytes into that
* buffer and always return the length of the entry name.
* Otherwise `size' is ignored and the function does not store the name,
* just returning the number of characters required to store the name.
* If an error occurs then the buffer pointed to by `name' (NULL or non-NULL)
* is unchanged and the function returns a negative value.
*
* Note: This routine returns the name that was used to open the file,
* not the actual name after resolving symlinks, etc.
*
* Return: Success: The length of the file name
* Failure: Negative
*
* Programmer: Raymond Lu
* June 29, 2004
*
*-------------------------------------------------------------------------
*/
ssize_t
H5Fget_name(hid_t obj_id, char *name/*out*/, size_t size)
{
H5VL_t *vol_plugin = NULL;
void *obj = NULL;
ssize_t ret_value;
H5I_type_t type;
FUNC_ENTER_API(FAIL)
H5TRACE3("Zs", "ixz", obj_id, name, size);
type = H5I_get_type(obj_id);
if(H5I_FILE != type && H5I_GROUP != type && H5I_DATATYPE != type &&
H5I_DATASET != type && H5I_ATTR != type) {
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
}
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(obj_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5VL_get_object(obj_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if(H5VL_file_get(obj, vol_plugin, H5VL_FILE_GET_NAME, H5_REQUEST_NULL,
type, size, name, &ret_value) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file name")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_name() */
/*-------------------------------------------------------------------------
* Function: H5Fget_info2
*
* Purpose: Gets general information about the file, including:
* 1. Get storage size for superblock extension if there is one.
* 2. Get the amount of btree and heap storage for entries
* in the SOHM table if there is one.
* 3. The amount of free space tracked in the file.
*
* Return: Success: non-negative on success
* Failure: Negative
*
* Programmer: Vailin Choi
* July 11, 2007
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fget_info2(hid_t obj_id, H5F_info2_t *finfo)
{
H5VL_t *vol_plugin;
void *obj;
H5I_type_t type;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "i*x", obj_id, finfo);
/* Check args */
if(!finfo)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no info struct")
type = H5I_get_type(obj_id);
if(H5I_FILE != type && H5I_GROUP != type && H5I_DATATYPE != type &&
H5I_DATASET != type && H5I_ATTR != type) {
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
}
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(obj_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5VL_get_object(obj_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if((ret_value = H5VL_file_optional(obj, vol_plugin, H5VL_FILE_GET_INFO, H5_REQUEST_NULL,
type, finfo)) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file info")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_info2() */
/*-------------------------------------------------------------------------
* Function: H5Fget_free_sections
*
* Purpose: To get free-space section information for free-space manager with
* TYPE that is associated with file FILE_ID.
* If SECT_INFO is null, this routine returns the total # of free-space
* sections.
*
* Return: Success: non-negative, the total # of free space sections
* Failure: negative
*
* Programmer: Vailin Choi; July 1st, 2009
*
*-------------------------------------------------------------------------
*/
ssize_t
H5Fget_free_sections(hid_t file_id, H5F_mem_t type, size_t nsects,
H5F_sect_info_t *sect_info/*out*/)
{
H5VL_t *vol_plugin;
void *obj;
ssize_t ret_value; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE4("Zs", "iFmzx", file_id, type, nsects, sect_info);
/* Check args */
if(sect_info && nsects == 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "nsects must be > 0")
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if(H5VL_file_optional(obj, vol_plugin, H5VL_FILE_GET_FREE_SECTIONS, H5_REQUEST_NULL, sect_info,
&ret_value, type, nsects) < 0)
HGOTO_ERROR(H5E_INTERNAL, H5E_CANTGET, FAIL, "unable to get file free sections")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fget_free_sections() */
/*-------------------------------------------------------------------------
* Function: H5Fclear_elink_file_cache
*
* Purpose: Releases the external file cache associated with the
* provided file, potentially closing any cached files
* unless they are held open from somewhere\ else.
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Neil Fortner; December 30, 2010
*
*-------------------------------------------------------------------------
*/
herr_t
H5Fclear_elink_file_cache(hid_t file_id)
{
H5VL_t *vol_plugin;
void *obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("e", "i", file_id);
/* get the plugin pointer */
if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
/* get the file object */
if(NULL == (obj = (void *)H5I_object(file_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
if(H5VL_file_optional(obj, vol_plugin, H5VL_FILE_CLEAR_ELINK_CACHE, H5_REQUEST_NULL) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't release external file cache")
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Fclear_elink_file_cache() */
/*-------------------------------------------------------------------------
* Function: H5F_get_id
*
* Purpose: Get the file ID, incrementing it, or "resurrecting" it as
* appropriate.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Oct 29, 2003
*
*-------------------------------------------------------------------------
*/
hid_t
H5F_get_id(H5F_t *file, hbool_t app_ref)
{
hid_t ret_value;
FUNC_ENTER_NOAPI_NOINIT
HDassert(file);
if (FAIL == (ret_value = H5I_get_id(file, H5I_FILE))) {
/* resurrect the ID - Register an ID with the native plugin */
if((ret_value = H5VL_native_register(H5I_FILE, file, app_ref)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register group")
file->id_exists = TRUE;
}
else {
/* Increment ref count on existing ID */
if(H5I_inc_ref(ret_value, app_ref) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTSET, FAIL, "incrementing file ID failed")
}
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_get_id() */
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