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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Module Info: This module contains the functionality for committing datatypes
* to a file for the H5T interface.
*/
#define H5T_PACKAGE /*suppress error about including H5Tpkg */
/* Interface initialization */
#define H5_INTERFACE_INIT_FUNC H5T_init_commit_interface
/* Pablo information */
/* (Put before include files to avoid problems with inline functions) */
#define PABLO_MASK H5T_commit_mask
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5FOprivate.h" /* File objects */
#include "H5Iprivate.h" /* IDs */
#include "H5Oprivate.h" /* Object headers */
#include "H5Tpkg.h" /* Datatypes */
/* Static local functions */
static herr_t H5T_commit(H5G_entry_t *loc, const char *name, H5T_t *type, hid_t dxpl_id);
/*--------------------------------------------------------------------------
NAME
H5T_init_commit_interface -- Initialize interface-specific information
USAGE
herr_t H5T_init_commit_interface()
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Initializes any interface-specific data or routines. (Just calls
H5T_init_iterface currently).
--------------------------------------------------------------------------*/
static herr_t
H5T_init_commit_interface(void)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5T_init_commit_interface);
FUNC_LEAVE_NOAPI(H5T_init());
} /* H5T_init_commit_interface() */
/*-------------------------------------------------------------------------
* Function: H5Tcommit
*
* Purpose: Save a transient data type to a file and turn the type handle
* into a named, immutable type.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Monday, June 1, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
herr_t
H5Tcommit(hid_t loc_id, const char *name, hid_t type_id)
{
H5G_entry_t *loc = NULL;
H5T_t *type = NULL;
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_API(H5Tcommit, FAIL);
H5TRACE3("e","isi",loc_id,name,type_id);
/* Check arguments */
if (NULL==(loc=H5G_loc (loc_id)))
HGOTO_ERROR (H5E_ARGS, H5E_BADTYPE, FAIL, "not a location");
if (!name || !*name)
HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "no name");
if (NULL==(type=H5I_object_verify(type_id, H5I_DATATYPE)))
HGOTO_ERROR (H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type");
/* Commit the type */
if (H5T_commit (loc, name, type, H5AC_dxpl_id)<0)
HGOTO_ERROR (H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to commit data type");
done:
FUNC_LEAVE_API(ret_value);
}
/*-------------------------------------------------------------------------
* Function: H5T_commit
*
* Purpose: Commit a type, giving it a name and causing it to become
* immutable.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Monday, June 1, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static herr_t
H5T_commit (H5G_entry_t *loc, const char *name, H5T_t *type, hid_t dxpl_id)
{
H5F_t *file = NULL;
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5T_commit);
assert (loc);
assert (name && *name);
assert (type);
/*
* Check arguments. We cannot commit an immutable type because H5Tclose()
* normally fails on such types (try H5Tclose(H5T_NATIVE_INT)) but closing
* a named type should always succeed.
*/
if (H5T_STATE_NAMED==type->shared->state || H5T_STATE_OPEN==type->shared->state)
HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "data type is already committed");
if (H5T_STATE_IMMUTABLE==type->shared->state)
HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "data type is immutable");
/* Find the insertion file */
if (NULL==(file=H5G_insertion_file(loc, name, dxpl_id)))
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to find insertion point");
/* Check for a "sensible" datatype to store on disk */
if(H5T_is_sensible(type)!=TRUE)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "datatype is not sensible");
/* Mark datatype as being on disk now. This step changes the size of datatype as
* stored on disk. */
if(H5T_set_loc(type, file, H5T_LOC_DISK)<0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "cannot mark datatype on disk")
/*
* Create the object header and open it for write access. Insert the data
* type message and then give the object header a name.
*/
if (H5O_create (file, dxpl_id, 64, &(type->ent))<0)
HGOTO_ERROR (H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to create data type object header");
if (H5O_modify (&(type->ent), H5O_DTYPE_ID, 0, H5O_FLAG_CONSTANT, 1, type, dxpl_id)<0)
HGOTO_ERROR (H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to update type header message");
if (H5G_insert (loc, name, &(type->ent), dxpl_id)<0)
HGOTO_ERROR (H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to name data type");
type->shared->state = H5T_STATE_OPEN;
type->shared->fo_count=1;
/* Add datatype to the list of open objects in the file */
if(H5FO_insert(type->ent.file, type->ent.header, type->shared)<0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINSERT, FAIL, "can't insert datatype into list of open objects")
/* Mark datatype as being on memory now. Since this datatype may still be used in memory
* after committed to disk, change its size back as in memory. */
if(H5T_set_loc(type, NULL, H5T_LOC_MEMORY)<0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "cannot mark datatype in memory")
done:
if (ret_value<0) {
if ((type->shared->state==H5T_STATE_TRANSIENT || type->shared->state==H5T_STATE_RDONLY) && H5F_addr_defined(type->ent.header)) {
if(H5O_close(&(type->ent))<0)
HDONE_ERROR(H5E_DATATYPE, H5E_CLOSEERROR, FAIL, "unable to release object header");
if(H5O_delete(file, dxpl_id,type->ent.header)<0)
HDONE_ERROR(H5E_DATATYPE, H5E_CANTDELETE, FAIL, "unable to delete object header");
type->ent.header = HADDR_UNDEF;
}
}
FUNC_LEAVE_NOAPI(ret_value);
}
/*-------------------------------------------------------------------------
* Function: H5Tcommitted
*
* Purpose: Determines if a data type is committed or not.
*
* Return: Success: TRUE if committed, FALSE otherwise.
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Thursday, June 4, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
htri_t
H5Tcommitted(hid_t type_id)
{
H5T_t *type = NULL;
htri_t ret_value; /* Return value */
FUNC_ENTER_API(H5Tcommitted, FAIL);
H5TRACE1("t","i",type_id);
/* Check arguments */
if (NULL==(type=H5I_object_verify(type_id,H5I_DATATYPE)))
HGOTO_ERROR (H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type");
/* Set return value */
ret_value= H5T_committed(type);
done:
FUNC_LEAVE_API(ret_value);
}
/*-------------------------------------------------------------------------
* Function: H5T_committed
*
* Purpose: Determines if a data type is committed or not.
*
* Return: Success: TRUE if committed, FALSE otherwise.
*
* Programmer: Quincey Koziol
* Wednesday, September 24, 2003
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
htri_t
H5T_committed(H5T_t *type)
{
/* Use no-init for efficiency */
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5T_committed);
assert (type);
FUNC_LEAVE_NOAPI(H5T_STATE_OPEN==type->shared->state || H5T_STATE_NAMED==type->shared->state);
} /* end H5T_committed() */
/*-------------------------------------------------------------------------
* Function: H5T_link
*
* Purpose: Adjust the link count for an object header by adding
* ADJUST to the link count.
*
* Return: Success: New link count
*
* Failure: Negative
*
* Programmer: Quincey Koziol
* Friday, September 26, 2003
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
int
H5T_link(const H5T_t *type, int adjust, hid_t dxpl_id)
{
int ret_value; /* Return value */
/* Use no-init for efficiency */
FUNC_ENTER_NOAPI(H5T_link,FAIL);
assert (type);
/* Adjust the link count on the named datatype */
if((ret_value=H5O_link(&(type->ent),adjust,dxpl_id))<0)
HGOTO_ERROR (H5E_DATATYPE, H5E_LINK, FAIL, "unable to adjust named datatype link count");
done:
FUNC_LEAVE_NOAPI(ret_value);
} /* end H5T_link() */
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