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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/****************/
/* Module Setup */
/****************/
#define H5F_PACKAGE /*suppress error about including H5Fpkg */
/* Interface initialization */
#define H5_INTERFACE_INIT_FUNC H5F_init_super_interface
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5ACprivate.h" /* Metadata cache */
#include "H5Eprivate.h" /* Error handling */
#include "H5Fpkg.h" /* File access */
#include "H5FDprivate.h" /* File drivers */
#include "H5Iprivate.h" /* IDs */
#include "H5MMprivate.h" /* Memory management */
#include "H5Pprivate.h" /* Property lists */
#include "H5SMprivate.h" /* Shared Object Header Messages */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
static herr_t H5F_super_ext_create(H5F_t *f, hid_t dxpl_id, H5O_loc_t *ext_ptr);
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/* Declare a free list to manage the H5F_super_t struct */
H5FL_DEFINE(H5F_super_t);
/*******************/
/* Local Variables */
/*******************/
/*--------------------------------------------------------------------------
NAME
H5F_init_super_interface -- Initialize interface-specific information
USAGE
herr_t H5F_init_super_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_super_interface(void)
{
FUNC_ENTER_NOAPI_NOINIT_NOERR
FUNC_LEAVE_NOAPI(H5F_init())
} /* H5F_init_super_interface() */
/*-------------------------------------------------------------------------
* Function: H5F_super_ext_create
*
* Purpose: Create the superblock extension
*
* Return: Success: non-negative on success
* Failure: Negative
*
* Programmer: Vailin Choi; Feb 2009
*
*-------------------------------------------------------------------------
*/
static herr_t
H5F_super_ext_create(H5F_t *f, hid_t dxpl_id, H5O_loc_t *ext_ptr)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Sanity check */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->sblock);
HDassert(!H5F_addr_defined(f->shared->sblock->ext_addr));
HDassert(ext_ptr);
/* Check for older version of superblock format that can't support superblock extensions */
if(f->shared->sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2)
HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "superblock extension not permitted with version %u of superblock", f->shared->sblock->super_vers)
else if(H5F_addr_defined(f->shared->sblock->ext_addr))
HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "superblock extension already exists?!?!")
else {
/* The superblock extension isn't actually a group, but the
* default group creation list should work fine.
* If we don't supply a size for the object header, HDF5 will
* allocate H5O_MIN_SIZE by default. This is currently
* big enough to hold the biggest possible extension, but should
* be tuned if more information is added to the superblock
* extension.
*/
H5O_loc_reset(ext_ptr);
if(H5O_create(f, dxpl_id, (size_t)0, (size_t)1, H5P_GROUP_CREATE_DEFAULT, ext_ptr) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTCREATE, FAIL, "unable to create superblock extension")
/* Record the address of the superblock extension */
f->shared->sblock->ext_addr = ext_ptr->addr;
} /* end else */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5F_super_ext_create() */
/*-------------------------------------------------------------------------
* Function: H5F_super_ext_open
*
* Purpose: Open an existing superblock extension
*
* Return: Success: non-negative on success
* Failure: Negative
*
* Programmer: Vailin Choi; Feb 2009
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_super_ext_open(H5F_t *f, haddr_t ext_addr, H5O_loc_t *ext_ptr)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Sanity check */
HDassert(f);
HDassert(H5F_addr_defined(ext_addr));
HDassert(ext_ptr);
/* Set up "fake" object location for superblock extension */
H5O_loc_reset(ext_ptr);
ext_ptr->file = f;
ext_ptr->addr = ext_addr;
/* Open the superblock extension object header */
if(H5O_open(ext_ptr) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTOPENOBJ, FAIL, "unable to open superblock extension")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5F_super_ext_open() */
/*-------------------------------------------------------------------------
* Function: H5F_super_ext_close
*
* Purpose: Close superblock extension
*
* Return: Success: non-negative on success
* Failure: Negative
*
* Programmer: Vailin Choi; Feb 2009
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_super_ext_close(H5F_t *f, H5O_loc_t *ext_ptr, hid_t dxpl_id,
hbool_t was_created)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Sanity check */
HDassert(f);
HDassert(ext_ptr);
/* Check if extension was created */
if(was_created) {
/* Increment link count on superblock extension's object header */
if(H5O_link(ext_ptr, 1, dxpl_id) < 0)
HGOTO_ERROR(H5E_FILE, H5E_LINKCOUNT, FAIL, "unable to increment hard link count")
/* Decrement refcount on superblock extension's object header in memory */
if(H5O_dec_rc_by_loc(ext_ptr, dxpl_id) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTDEC, FAIL, "unable to decrement refcount on superblock extension")
} /* end if */
/* Twiddle the number of open objects to avoid closing the file. */
f->nopen_objs++;
if(H5O_close(ext_ptr) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEOBJ, FAIL, "unable to close superblock extension")
f->nopen_objs--;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5F_super_ext_close() */
/*-------------------------------------------------------------------------
* Function: H5F__super_read
*
* Purpose: Reads the superblock from the file or from the BUF. If
* ADDR is a valid address, then it reads it from the file.
* If not, then BUF must be non-NULL for it to read from the
* BUF.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Bill Wendling
* wendling@ncsa.uiuc.edu
* Sept 12, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5F__super_read(H5F_t *f, hid_t dxpl_id, hbool_t initial_read)
{
H5P_genplist_t *dxpl; /* DXPL object */
H5F_super_t * sblock = NULL; /* Superblock structure */
H5F_superblock_cache_ud_t udata; /* User data for cache callbacks */
H5P_genplist_t *c_plist; /* File creation property list */
unsigned sblock_flags = H5AC__NO_FLAGS_SET; /* flags used in superblock unprotect call */
haddr_t super_addr; /* Absolute address of superblock */
haddr_t eof; /* End of file address */
unsigned rw_flags; /* Read/write permissions for file */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE_TAG(dxpl_id, H5AC__SUPERBLOCK_TAG, FAIL)
/* initialize the drvinfo to NULL -- we will overwrite this if there
* is a driver information block
*/
f->shared->drvinfo = NULL;
/* Get the DXPL plist object for DXPL ID */
if(NULL == (dxpl = (H5P_genplist_t *)H5I_object(dxpl_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list")
/* Find the superblock */
if(H5FD_locate_signature(f->shared->lf, dxpl, &super_addr) < 0)
HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "unable to locate file signature")
if(HADDR_UNDEF == super_addr)
HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "file signature not found")
/* Check for userblock present */
if(H5F_addr_gt(super_addr, 0)) {
/* Set the base address for the file in the VFD now */
if(H5F__set_base_addr(f, super_addr) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "failed to set base address for file driver")
} /* end if */
/* Determine file intent for superblock protect */
/* Must tell cache at protect time that the super block is to be
* flushed last (and collectively in the parallel case).
*/
rw_flags = H5AC__FLUSH_LAST_FLAG;
#ifdef H5_HAVE_PARALLEL
rw_flags |= H5C__FLUSH_COLLECTIVELY_FLAG;
#endif /* H5_HAVE_PARALLEL */
if(!(H5F_INTENT(f) & H5F_ACC_RDWR))
rw_flags |= H5AC__READ_ONLY_FLAG;
/* Get the shared file creation property list */
if(NULL == (c_plist = (H5P_genplist_t *)H5I_object(f->shared->fcpl_id)))
HGOTO_ERROR(H5E_FILE, H5E_BADTYPE, FAIL, "can't get property list")
/* Make certain we can read the fixed-size portion of the superblock */
if(H5F__set_eoa(f, H5FD_MEM_SUPER,
(haddr_t)(H5F_SUPERBLOCK_FIXED_SIZE + H5F_SUPERBLOCK_MINIMAL_VARLEN_SIZE)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "set end of space allocation request failed")
/* Set up the user data for cache callbacks */
udata.f = f;
udata.ignore_drvrinfo = H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO);
udata.sym_leaf_k = 0;
if(H5P_get(c_plist, H5F_CRT_BTREE_RANK_NAME, udata.btree_k) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get rank for btree internal nodes")
udata.stored_eof = HADDR_UNDEF;
udata.drvrinfo_removed = FALSE;
/* Look up the superblock */
if(NULL == (sblock = (H5F_super_t *)H5AC_protect(f, dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, &udata, rw_flags)))
HGOTO_ERROR(H5E_FILE, H5E_CANTPROTECT, FAIL, "unable to load superblock")
/* Pin the superblock in the cache */
if(H5AC_pin_protected_entry(sblock) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTPIN, FAIL, "unable to pin superblock")
/* Mark the superblock dirty if it was modified during loading */
if(((rw_flags & H5AC__READ_ONLY_FLAG) == 0) && udata.ignore_drvrinfo && udata.drvrinfo_removed) {
HDassert(sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2);
sblock_flags |= H5AC__DIRTIED_FLAG;
} /* end if */
/* The superblock must be flushed last (and collectively in parallel) */
sblock_flags |= H5AC__FLUSH_LAST_FLAG;
#ifdef H5_HAVE_PARALLEL
sblock_flags |= H5AC__FLUSH_COLLECTIVELY_FLAG;
#endif /* H5_HAVE_PARALLEL */
/* Check if superblock address is different from base address and adjust
* base address and "end of address" address if so.
*/
if(!H5F_addr_eq(super_addr, sblock->base_addr)) {
/* Check if the superblock moved earlier in the file */
if(H5F_addr_lt(super_addr, sblock->base_addr))
udata.stored_eof -= (sblock->base_addr - super_addr);
else
/* The superblock moved later in the file */
udata.stored_eof += (super_addr - sblock->base_addr);
/* Adjust base address for offsets of the HDF5 data in the file */
sblock->base_addr = super_addr;
/* Set the base address for the file in the VFD now */
if(H5F__set_base_addr(f, sblock->base_addr) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "failed to set base address for file driver")
/* Indicate that the superblock should be marked dirty */
if((rw_flags & H5AC__READ_ONLY_FLAG) == 0)
sblock_flags |= H5AC__DIRTIED_FLAG;
} /* end if */
/* Set information in the file's creation property list */
if(H5P_set(c_plist, H5F_CRT_SUPER_VERS_NAME, &sblock->super_vers) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set superblock version")
if(H5P_set(c_plist, H5F_CRT_ADDR_BYTE_NUM_NAME, &sblock->sizeof_addr) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set byte number in an address")
if(H5P_set(c_plist, H5F_CRT_OBJ_BYTE_NUM_NAME, &sblock->sizeof_size) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set byte number for object size")
/* Handle the B-tree 'K' values */
if(sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2) {
/* Sanity check */
HDassert(udata.sym_leaf_k != 0);
/* Set the symbol table internal node 'K' value */
if(H5P_set(c_plist, H5F_CRT_SYM_LEAF_NAME, &udata.sym_leaf_k) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set rank for symbol table leaf nodes")
sblock->sym_leaf_k = udata.sym_leaf_k;
/* Set the B-tree internal node values, etc */
if(H5P_set(c_plist, H5F_CRT_BTREE_RANK_NAME, udata.btree_k) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set rank for btree internal nodes")
HDmemcpy(sblock->btree_k, udata.btree_k, sizeof(unsigned) * (size_t)H5B_NUM_BTREE_ID);
} /* end if */
else {
/* Get the (default) B-tree internal node values, etc */
/* (Note: these may be reset in a superblock extension) */
if(H5P_get(c_plist, H5F_CRT_BTREE_RANK_NAME, sblock->btree_k) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get rank for btree internal nodes")
if(H5P_get(c_plist, H5F_CRT_SYM_LEAF_NAME, &sblock->sym_leaf_k) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get rank for btree internal nodes")
} /* end else */
/*
* The user-defined data is the area of the file before the base
* address.
*/
if(H5P_set(c_plist, H5F_CRT_USER_BLOCK_NAME, &sblock->base_addr) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set userblock size")
/*
* Make sure that the data is not truncated. One case where this is
* possible is if the first file of a family of files was opened
* individually.
*/
/* (This check can be skipped when the file is opened for SWMR read,
* as the file can appear truncated if only part of it has been
* been flushed to disk by the single writer process.)
*/
/* Can skip this test when it is not the initial file open--
* H5F_super_read() call from H5F_evict_tagged_metadata() for
* refreshing object.
* When flushing file buffers and fractal heap is involved,
* the library will allocate actual space for tmp addresses
* via the file layer. The aggregator allocates a block,
* thus the eoa might be greater than eof.
* Note: the aggregator is changed again after being reset
* earlier before H5AC_flush due to allocation of tmp addresses.
*/
if (!(H5F_INTENT(f) & H5F_ACC_SWMR_READ) && initial_read) {
if(HADDR_UNDEF == (eof = H5FD_get_eof(f->shared->lf, H5FD_MEM_DEFAULT)))
HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to determine file size")
/* (Account for the stored EOA being absolute offset -QAK) */
if((eof + sblock->base_addr) < udata.stored_eof)
HGOTO_ERROR(H5E_FILE, H5E_TRUNCATED, FAIL, "truncated file: eof = %llu, sblock->base_addr = %llu, stored_eof = %llu", (unsigned long long)eof, (unsigned long long)sblock->base_addr, (unsigned long long)udata.stored_eof)
} /* end if */
/*
* Tell the file driver how much address space has already been
* allocated so that it knows how to allocate additional memory.
*/
/* Decode the optional driver information block */
if(H5F_addr_defined(sblock->driver_addr)) {
H5O_drvinfo_t *drvinfo; /* Driver info */
H5F_drvrinfo_cache_ud_t drvrinfo_udata; /* User data for metadata callbacks */
unsigned drvinfo_flags = H5AC__NO_FLAGS_SET; /* Flags used in driver info block unprotect call */
/* Sanity check - driver info block should only be defined for
* superblock version < 2.
*/
HDassert(sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2);
/* Set up user data */
drvrinfo_udata.f = f;
drvrinfo_udata.driver_addr = sblock->driver_addr;
/* extend EOA so we can read at least the fixed sized
* portion of the driver info block
*/
if(H5FD_set_eoa(f->shared->lf, H5FD_MEM_SUPER, sblock->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE) < 0) /* will extend eoa later if required */
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, \
"set end of space allocation request failed")
/* Look up the driver info block */
if(NULL == (drvinfo = (H5O_drvinfo_t *)H5AC_protect(f, dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, &drvrinfo_udata, rw_flags)))
HGOTO_ERROR(H5E_FILE, H5E_CANTPROTECT, FAIL, "unable to load driver info block")
/* Loading the driver info block is enough to set up the right info */
/* Check if we need to rewrite the driver info block info */
if ( ( (rw_flags & H5AC__READ_ONLY_FLAG) == 0 ) &&
( H5F_HAS_FEATURE(f, H5FD_FEAT_DIRTY_DRVRINFO_LOAD) ) ) {
drvinfo_flags |= H5AC__DIRTIED_FLAG;
} /* end if */
/* set the pin entry flag so that the driver information block
* cache entry will be pinned in the cache.
*/
drvinfo_flags |= H5AC__PIN_ENTRY_FLAG;
/* Release the driver info block */
if(H5AC_unprotect(f, dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, drvinfo, drvinfo_flags) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTUNPROTECT, FAIL, "unable to release driver info block")
/* save a pointer to the driver information cache entry */
f->shared->drvinfo = drvinfo;
} /* end if */
/* (Account for the stored EOA being absolute offset -NAF) */
if(H5F__set_eoa(f, H5FD_MEM_SUPER, udata.stored_eof - sblock->base_addr) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set end-of-address marker for file")
/* Decode the optional superblock extension info */
if(H5F_addr_defined(sblock->ext_addr)) {
H5O_loc_t ext_loc; /* "Object location" for superblock extension */
H5O_btreek_t btreek; /* v1 B-tree 'K' value message from superblock extension */
H5O_drvinfo_t drvinfo; /* Driver info message from superblock extension */
size_t u; /* Local index variable */
htri_t status; /* Status for message existing */
/* Sanity check - superblock extension should only be defined for
* superblock version >= 2.
*/
HDassert(sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2);
/* Check for superblock extension being located "outside" the stored
* 'eoa' value, which can occur with the split/multi VFD.
*/
if(H5F_addr_gt(sblock->ext_addr, udata.stored_eof)) {
/* Set the 'eoa' for the object header memory type large enough
* to give some room for a reasonably sized superblock extension.
* (This is _rather_ a kludge -QAK)
*/
if(H5F__set_eoa(f, H5FD_MEM_OHDR, (haddr_t)(sblock->ext_addr + 1024)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set end-of-address marker for file")
} /* end if */
/* Open the superblock extension */
if(H5F_super_ext_open(f, sblock->ext_addr, &ext_loc) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTOPENOBJ, FAIL, "unable to open file's superblock extension")
/* Check for the extension having a 'driver info' message */
if((status = H5O_msg_exists(&ext_loc, H5O_DRVINFO_ID, dxpl_id)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_EXISTS, FAIL, "unable to read object header")
if(status) {
/* Check for ignoring the driver info for this file */
if(!udata.ignore_drvrinfo) {
/* Retrieve the 'driver info' structure */
if(NULL == H5O_msg_read(&ext_loc, H5O_DRVINFO_ID, &drvinfo, dxpl_id))
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "driver info message not present")
/* Validate and decode driver information */
if(H5FD_sb_load(f->shared->lf, drvinfo.name, drvinfo.buf) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, FAIL, "unable to decode driver information")
/* Reset driver info message */
H5O_msg_reset(H5O_DRVINFO_ID, &drvinfo);
} /* end else */
} /* end if */
/* Read in the shared OH message information if there is any */
if(H5SM_get_info(&ext_loc, c_plist, dxpl_id) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to read SOHM table information")
/* Check for the extension having a 'v1 B-tree "K"' message */
if((status = H5O_msg_exists(&ext_loc, H5O_BTREEK_ID, dxpl_id)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_EXISTS, FAIL, "unable to read object header")
if(status) {
/* Retrieve the 'v1 B-tree "K"' structure */
if(NULL == H5O_msg_read(&ext_loc, H5O_BTREEK_ID, &btreek, dxpl_id))
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "v1 B-tree 'K' info message not present")
/* Set non-default v1 B-tree 'K' value info from file */
sblock->btree_k[H5B_CHUNK_ID] = btreek.btree_k[H5B_CHUNK_ID];
sblock->btree_k[H5B_SNODE_ID] = btreek.btree_k[H5B_SNODE_ID];
sblock->sym_leaf_k = btreek.sym_leaf_k;
/* Set non-default v1 B-tree 'K' values in the property list */
if(H5P_set(c_plist, H5F_CRT_BTREE_RANK_NAME, btreek.btree_k) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set rank for btree internal nodes")
if(H5P_set(c_plist, H5F_CRT_SYM_LEAF_NAME, &btreek.sym_leaf_k) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set rank for symbol table leaf nodes")
} /* end if */
/* Check for the extension having a 'free-space manager info' message */
if((status = H5O_msg_exists(&ext_loc, H5O_FSINFO_ID, dxpl_id)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_EXISTS, FAIL, "unable to read object header")
if(status) {
H5O_fsinfo_t fsinfo; /* Free-space manager info message from superblock extension */
/* Retrieve the 'free-space manager info' structure */
if(NULL == H5O_msg_read(&ext_loc, H5O_FSINFO_ID, &fsinfo, dxpl_id))
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get free-space manager info message")
/* Check for non-default info */
if(f->shared->fs_strategy != fsinfo.strategy) {
f->shared->fs_strategy = fsinfo.strategy;
/* Set non-default strategy in the property list */
if(H5P_set(c_plist, H5F_CRT_FILE_SPACE_STRATEGY_NAME, &fsinfo.strategy) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set file space strategy")
} /* end if */
if(f->shared->fs_threshold != fsinfo.threshold) {
f->shared->fs_threshold = fsinfo.threshold;
/* Set non-default threshold in the property list */
if(H5P_set(c_plist, H5F_CRT_FREE_SPACE_THRESHOLD_NAME, &fsinfo.threshold) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set file space strategy")
} /* end if */
/* Set free-space manager addresses */
f->shared->fs_addr[0] = HADDR_UNDEF;
for(u = 1; u < NELMTS(f->shared->fs_addr); u++)
f->shared->fs_addr[u] = fsinfo.fs_addr[u-1];
} /* end if */
/* Close superblock extension */
if(H5F_super_ext_close(f, &ext_loc, dxpl_id, FALSE) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEOBJ, FAIL, "unable to close file's superblock extension")
} /* end if */
/* Update the driver info if VFD indicated to do so */
/* (NOTE: only for later versions of superblock, earlier versions are handled
* earlier in this routine.
*/
if(((rw_flags & H5AC__READ_ONLY_FLAG) == 0) &&
sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2 &&
H5F_addr_defined(sblock->ext_addr)) {
/* Check for modifying the driver info when opening the file */
if(H5F_HAS_FEATURE(f, H5FD_FEAT_DIRTY_DRVRINFO_LOAD)) {
size_t driver_size; /* Size of driver info block (bytes) */
/* Check for driver info message */
H5_CHECKED_ASSIGN(driver_size, size_t, H5FD_sb_size(f->shared->lf), hsize_t);
if(driver_size > 0) {
H5O_drvinfo_t drvinfo; /* Driver info */
uint8_t dbuf[H5F_MAX_DRVINFOBLOCK_SIZE]; /* Driver info block encoding buffer */
/* Sanity check */
HDassert(driver_size <= H5F_MAX_DRVINFOBLOCK_SIZE);
/* Encode driver-specific data */
if(H5FD_sb_encode(f->shared->lf, drvinfo.name, dbuf) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to encode driver information")
/* Set the driver info information for the superblock extension */
drvinfo.len = driver_size;
drvinfo.buf = dbuf;
/* Write driver info information to the superblock extension */
#if 1 /* bug fix test code -- tidy this up if all goes well */ /* JRM */
/* KLUGE ALERT!!
*
* H5F_super_ext_write_msg() expects f->shared->sblock to
* be set -- verify that it is NULL, and then set it.
* Set it back to NULL when we are done.
*/
HDassert(f->shared->sblock == NULL);
f->shared->sblock = sblock;
#endif /* JRM */
if(H5F_super_ext_write_msg(f, dxpl_id, &drvinfo, H5O_DRVINFO_ID, FALSE) < 0)
HGOTO_ERROR(H5E_FILE, H5E_WRITEERROR, FAIL, "error in writing message to superblock extension")
#if 1 /* bug fix test code -- tidy this up if all goes well */ /* JRM */
f->shared->sblock = NULL;
#endif /* JRM */
} /* end if */
} /* end if */
/* Check for eliminating the driver info block */
else if(H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO)) {
/* Remove the driver info message from the superblock extension */
if(H5F_super_ext_remove_msg(f, dxpl_id, H5O_DRVINFO_ID) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "error in removing message from superblock extension")
/* Check if the superblock extension was removed */
if(!H5F_addr_defined(sblock->ext_addr))
sblock_flags |= H5AC__DIRTIED_FLAG;
} /* end if */
} /* end if */
/* Set the pointer to the pinned superblock */
f->shared->sblock = sblock;
done:
/* Release the superblock */
if(sblock && H5AC_unprotect(f, dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, sblock, sblock_flags) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTUNPROTECT, FAIL, "unable to close superblock")
/* If we have failed, make sure no entries are left in the
* metadata cache, so that it can be shut down and discarded.
*/
if(ret_value < 0) {
/* Unpin and discard drvinfo cache entry */
if(f->shared->drvinfo) {
if(H5AC_unpin_entry(f->shared->drvinfo) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTUNPIN, FAIL, "unable to unpin driver info")
/* Evict the driver info block from the cache */
if(H5AC_expunge_entry(f, dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, H5AC__NO_FLAGS_SET) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTEXPUNGE, FAIL, "unable to expunge driver info block")
} /* end if */
/* Unpin & discard superblock */
if(sblock) {
/* Unpin superblock in cache */
if(H5AC_unpin_entry(sblock) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTUNPIN, FAIL, "unable to unpin superblock")
/* Evict the superblock from the cache */
if(H5AC_expunge_entry(f, dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, H5AC__NO_FLAGS_SET) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTEXPUNGE, FAIL, "unable to expunge superblock")
} /* end if */
} /* end if */
FUNC_LEAVE_NOAPI_TAG(ret_value, FAIL)
} /* end H5F__super_read() */
/*-------------------------------------------------------------------------
* Function: H5F__super_init
*
* Purpose: Allocates the superblock for the file and initializes
* information about the superblock in memory. Writes extension
* messages if any are needed.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Sept 15, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5F__super_init(H5F_t *f, hid_t dxpl_id)
{
H5F_super_t *sblock = NULL; /* Superblock cache structure */
hbool_t sblock_in_cache = FALSE; /* Whether the superblock has been inserted into the metadata cache */
H5O_drvinfo_t *drvinfo = NULL; /* Driver info */
hbool_t drvinfo_in_cache = FALSE; /* Whether the driver info block has been inserted into the metadata cache */
H5P_genplist_t *plist; /* File creation property list */
hsize_t userblock_size; /* Size of userblock, in bytes */
hsize_t superblock_size; /* Size of superblock, in bytes */
size_t driver_size; /* Size of driver info block (bytes) */
unsigned super_vers = HDF5_SUPERBLOCK_VERSION_DEF; /* Superblock version for file */
H5O_loc_t ext_loc; /* Superblock extension object location */
hbool_t need_ext; /* Whether the superblock extension is needed */
hbool_t ext_created = FALSE; /* Whether the extension has been created */
herr_t ret_value = SUCCEED; /* Return Value */
FUNC_ENTER_PACKAGE_TAG(dxpl_id, H5AC__SUPERBLOCK_TAG, FAIL)
/* Allocate space for the superblock */
if(NULL == (sblock = H5FL_CALLOC(H5F_super_t)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
/* Initialize various address information */
sblock->base_addr = HADDR_UNDEF;
sblock->ext_addr = HADDR_UNDEF;
sblock->driver_addr = HADDR_UNDEF;
sblock->root_addr = HADDR_UNDEF;
/* Get the shared file creation property list */
if(NULL == (plist = (H5P_genplist_t *)H5I_object(f->shared->fcpl_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list")
/* Initialize sym_leaf_k */
if(H5P_get(plist, H5F_CRT_SYM_LEAF_NAME, &sblock->sym_leaf_k) < 0)
HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get byte number for object size")
/* Initialize btree_k */
if(H5P_get(plist, H5F_CRT_BTREE_RANK_NAME, &sblock->btree_k[0]) < 0)
HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "unable to get rank for btree internal nodes")
/* Bump superblock version if we are to use the latest version of the format */
if(f->shared->latest_format)
super_vers = HDF5_SUPERBLOCK_VERSION_LATEST;
/* Bump superblock version to create superblock extension for SOHM info */
else if(f->shared->sohm_nindexes > 0)
super_vers = HDF5_SUPERBLOCK_VERSION_2;
/* Bump superblock version to create superblock extension for
* non-default file space strategy or non-default free-space threshold
*/
else if(f->shared->fs_strategy != H5F_FILE_SPACE_STRATEGY_DEF ||
f->shared->fs_threshold != H5F_FREE_SPACE_THRESHOLD_DEF)
super_vers = HDF5_SUPERBLOCK_VERSION_2;
/* Check for non-default indexed storage B-tree internal 'K' value
* and set the version # of the superblock to 1 if it is a non-default
* value.
*/
else if(sblock->btree_k[H5B_CHUNK_ID] != HDF5_BTREE_CHUNK_IK_DEF)
super_vers = HDF5_SUPERBLOCK_VERSION_1;
/* If a newer superblock version is required, set it here */
if(super_vers != HDF5_SUPERBLOCK_VERSION_DEF) {
H5P_genplist_t *c_plist; /* Property list */
if(NULL == (c_plist = (H5P_genplist_t *)H5I_object(f->shared->fcpl_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not property list")
if(H5P_set(c_plist, H5F_CRT_SUPER_VERS_NAME, &super_vers) < 0)
HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "unable to set superblock version")
} /* end if */
/*
* The superblock starts immediately after the user-defined
* header, which we have already insured is a proper size. The
* base address is set to the same thing as the superblock for
* now.
*/
if(H5P_get(plist, H5F_CRT_USER_BLOCK_NAME, &userblock_size) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get userblock size")
/* Sanity check the userblock size vs. the file's allocation alignment */
if(userblock_size > 0) {
if(userblock_size < f->shared->alignment)
HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "userblock size must be > file object alignment")
if(0 != (userblock_size % f->shared->alignment))
HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "userblock size must be an integral multiple of file object alignment")
} /* end if */
sblock->base_addr = userblock_size;
sblock->status_flags = 0;
/* Reserve space for the userblock */
if(H5F__set_eoa(f, H5FD_MEM_SUPER, userblock_size) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to set EOA value for userblock")
/* Set the base address for the file in the VFD now, after allocating
* space for userblock.
*/
if(H5F__set_base_addr(f, sblock->base_addr) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to set base address for file driver")
/* Save a local copy of the superblock version number, size of addresses & offsets */
sblock->super_vers = super_vers;
sblock->sizeof_addr = f->shared->sizeof_addr;
sblock->sizeof_size = f->shared->sizeof_size;
/* Compute the size of the superblock */
superblock_size = (hsize_t)H5F_SUPERBLOCK_SIZE(sblock);
/* Compute the size of the driver information block */
H5_CHECKED_ASSIGN(driver_size, size_t, H5FD_sb_size(f->shared->lf), hsize_t);
if(driver_size > 0) {
driver_size += H5F_DRVINFOBLOCK_HDR_SIZE;
/*
* The file driver information block begins immediately after the
* superblock. (relative to base address in file)
*/
sblock->driver_addr = superblock_size;
} /* end if */
/*
* Allocate space for the superblock & driver info block.
* We do it with one allocation request because the superblock needs to be
* at the beginning of the file and only the first allocation request is
* required to return memory at format address zero.
*/
if(super_vers < HDF5_SUPERBLOCK_VERSION_2)
superblock_size += driver_size;
/* Reserve space in the file for the superblock, instead of allocating it */
if(H5F__set_eoa(f, H5FD_MEM_SUPER, superblock_size) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to set EOA value for superblock")
/* Insert superblock into cache, pinned */
if(H5AC_insert_entry(f, dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, sblock, H5AC__PIN_ENTRY_FLAG | H5AC__FLUSH_LAST_FLAG | H5AC__FLUSH_COLLECTIVELY_FLAG) < 0)
HGOTO_ERROR(H5E_CACHE, H5E_CANTINS, FAIL, "can't add superblock to cache")
sblock_in_cache = TRUE;
/* Keep a copy of the superblock info */
f->shared->sblock = sblock;
/* set the drvinfo filed to NULL -- will overwrite this later if needed */
f->shared->drvinfo = NULL;
/*
* Determine if we will need a superblock extension
*/
/* Files with SOHM indices always need the superblock extension */
if(f->shared->sohm_nindexes > 0) {
HDassert(super_vers >= HDF5_SUPERBLOCK_VERSION_2);
need_ext = TRUE;
} /* end if */
/* Files with non-default free space settings always need the superblock extension */
else if(f->shared->fs_strategy != H5F_FILE_SPACE_STRATEGY_DEF ||
f->shared->fs_threshold != H5F_FREE_SPACE_THRESHOLD_DEF) {
HDassert(super_vers >= HDF5_SUPERBLOCK_VERSION_2);
need_ext = TRUE;
} /* end if */
/* If we're going to use a version of the superblock format which allows
* for the superblock extension, check for non-default values to store
* in it.
*/
else if(super_vers >= HDF5_SUPERBLOCK_VERSION_2) {
/* Check for non-default v1 B-tree 'K' values to store */
if(sblock->btree_k[H5B_SNODE_ID] != HDF5_BTREE_SNODE_IK_DEF ||
sblock->btree_k[H5B_CHUNK_ID] != HDF5_BTREE_CHUNK_IK_DEF ||
sblock->sym_leaf_k != H5F_CRT_SYM_LEAF_DEF)
need_ext = TRUE;
/* Check for driver info to store */
else if(driver_size > 0)
need_ext = TRUE;
else
need_ext = FALSE;
} /* end if */
else
need_ext = FALSE;
/* Create the superblock extension for "extra" superblock data, if necessary. */
if(need_ext) {
/* The superblock extension isn't actually a group, but the
* default group creation list should work fine.
* If we don't supply a size for the object header, HDF5 will
* allocate H5O_MIN_SIZE by default. This is currently
* big enough to hold the biggest possible extension, but should
* be tuned if more information is added to the superblock
* extension.
*/
if(H5F_super_ext_create(f, dxpl_id, &ext_loc) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "unable to create superblock extension")
ext_created = TRUE;
/* Create the Shared Object Header Message table and register it with
* the metadata cache, if this file supports shared messages.
*/
if(f->shared->sohm_nindexes > 0) {
/* Initialize the shared message code & write the SOHM message to the extension */
if(H5SM_init(f, plist, &ext_loc, dxpl_id) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to create SOHM table")
} /* end if */
/* Check for non-default v1 B-tree 'K' values to store */
if(sblock->btree_k[H5B_SNODE_ID] != HDF5_BTREE_SNODE_IK_DEF ||
sblock->btree_k[H5B_CHUNK_ID] != HDF5_BTREE_CHUNK_IK_DEF ||
sblock->sym_leaf_k != H5F_CRT_SYM_LEAF_DEF) {
H5O_btreek_t btreek; /* v1 B-tree 'K' value message for superblock extension */
/* Write v1 B-tree 'K' value information to the superblock extension */
btreek.btree_k[H5B_CHUNK_ID] = sblock->btree_k[H5B_CHUNK_ID];
btreek.btree_k[H5B_SNODE_ID] = sblock->btree_k[H5B_SNODE_ID];
btreek.sym_leaf_k = sblock->sym_leaf_k;
if(H5O_msg_create(&ext_loc, H5O_BTREEK_ID, H5O_MSG_FLAG_CONSTANT | H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, &btreek, dxpl_id) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to update v1 B-tree 'K' value header message")
} /* end if */
/* Check for driver info to store */
if(driver_size > 0) {
H5O_drvinfo_t t_drvinfo; /* Driver info */
uint8_t dbuf[H5F_MAX_DRVINFOBLOCK_SIZE]; /* Driver info block encoding buffer */
/* Sanity check */
HDassert(driver_size <= H5F_MAX_DRVINFOBLOCK_SIZE);
/* Encode driver-specific data */
if(H5FD_sb_encode(f->shared->lf, t_drvinfo.name, dbuf) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to encode driver information")
/* Write driver info information to the superblock extension */
t_drvinfo.len = driver_size;
t_drvinfo.buf = dbuf;
if(H5O_msg_create(&ext_loc, H5O_DRVINFO_ID, H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, &t_drvinfo, dxpl_id) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to update driver info header message")
} /* end if */
/* Check for non-default free space settings */
if(f->shared->fs_strategy != H5F_FILE_SPACE_STRATEGY_DEF ||
f->shared->fs_threshold != H5F_FREE_SPACE_THRESHOLD_DEF) {
H5FD_mem_t type; /* Memory type for iteration */
H5O_fsinfo_t fsinfo; /* Free space manager info message */
/* Write free-space manager info message to superblock extension object header if needed */
fsinfo.strategy = f->shared->fs_strategy;
fsinfo.threshold = f->shared->fs_threshold;
for(type = H5FD_MEM_SUPER; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type))
fsinfo.fs_addr[type-1] = HADDR_UNDEF;
if(H5O_msg_create(&ext_loc, H5O_FSINFO_ID, H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, &fsinfo, dxpl_id) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to update free-space info header message")
} /* end if */
} /* end if */
else {
/* Check for creating an "old-style" driver info block */
if(driver_size > 0) {
/* Sanity check */
HDassert(H5F_addr_defined(sblock->driver_addr));
/* Allocate space for the driver info */
if(NULL == (drvinfo = (H5O_drvinfo_t *)H5MM_calloc(sizeof(H5O_drvinfo_t))))
HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, FAIL, "memory allocation failed for driver info message")
/* Set up driver info message */
/* (NOTE: All the actual information (name & driver information) is
* actually based on the VFD info in the file handle and
* will be encoded by the VFD's 'encode' callback, so it
* doesn't need to be set here. -QAK, 7/20/2013
*/
H5_CHECKED_ASSIGN(drvinfo->len, size_t, H5FD_sb_size(f->shared->lf), hsize_t);
/* Insert driver info block into cache */
if(H5AC_insert_entry(f, dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, drvinfo, H5AC__PIN_ENTRY_FLAG | H5AC__FLUSH_LAST_FLAG | H5AC__FLUSH_COLLECTIVELY_FLAG) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTINS, FAIL, "can't add driver info block to cache")
drvinfo_in_cache = TRUE;
f->shared->drvinfo = drvinfo;
} /* end if */
else
HDassert(!H5F_addr_defined(sblock->driver_addr));
} /* end if */
done:
/* Close superblock extension, if it was created */
if(ext_created && H5F_super_ext_close(f, &ext_loc, dxpl_id, ext_created) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "unable to close file's superblock extension")
/* Cleanup on failure */
if(ret_value < 0) {
/* Check if the driver info block has been allocated yet */
if(drvinfo) {
/* Check if we've cached it already */
if(drvinfo_in_cache) {
/* Unpin drvinfo in cache */
if(H5AC_unpin_entry(drvinfo) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTUNPIN, FAIL, "unable to unpin driver info")
/* Evict the driver info block from the cache */
if(H5AC_expunge_entry(f, dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, H5AC__NO_FLAGS_SET) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTEXPUNGE, FAIL, "unable to expunge driver info block")
} /* end if */
else
/* Free driver info block */
H5MM_xfree(drvinfo);
} /* end if */
/* Check if the superblock has been allocated yet */
if(sblock) {
/* Check if we've cached it already */
if(sblock_in_cache) {
/* Unpin superblock in cache */
if(H5AC_unpin_entry(sblock) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTUNPIN, FAIL, "unable to unpin superblock")
/* Evict the superblock from the cache */
if(H5AC_expunge_entry(f, dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, H5AC__NO_FLAGS_SET) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTEXPUNGE, FAIL, "unable to expunge superblock")
} /* end if */
else
/* Free superblock */
if(H5F__super_free(sblock) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "unable to destroy superblock")
/* Reset variables in file structure */
f->shared->sblock = NULL;
} /* end if */
} /* end if */
FUNC_LEAVE_NOAPI_TAG(ret_value, FAIL)
} /* end H5F__super_init() */
/*-------------------------------------------------------------------------
* Function: H5F_super_dirty
*
* Purpose: Mark the file's superblock dirty
*
* Return: Success: non-negative on success
* Failure: Negative
*
* Programmer: Quincey Koziol
* August 14, 2009
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_super_dirty(H5F_t *f)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* Sanity check */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->sblock);
/* Mark superblock dirty in cache, so change to EOA will get encoded */
if(H5AC_mark_entry_dirty(f->shared->sblock) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty")
/* if the driver information block exists, mark it dirty as well
* so that the change in eoa will be reflected there as well if
* appropriate.
*/
if ( f->shared->drvinfo )
if(H5AC_mark_entry_dirty(f->shared->drvinfo) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark drvinfo as dirty")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5F_super_dirty() */
/*-------------------------------------------------------------------------
* Function: H5F__super_free
*
* Purpose: Destroyer the file's superblock
*
* Return: Success: non-negative on success
* Failure: Negative
*
* Programmer: Quincey Koziol
* April 1, 2010
*
*-------------------------------------------------------------------------
*/
herr_t
H5F__super_free(H5F_super_t *sblock)
{
FUNC_ENTER_PACKAGE_NOERR
/* Sanity check */
HDassert(sblock);
/* Free root group symbol table entry, if any */
sblock->root_ent = (H5G_entry_t *)H5MM_xfree(sblock->root_ent);
/* Free superblock */
sblock = (H5F_super_t *)H5FL_FREE(H5F_super_t, sblock);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5F__super_free() */
/*-------------------------------------------------------------------------
* Function: H5F__super_size
*
* Purpose: Get storage size of the superblock and superblock extension
*
* Return: Success: non-negative on success
* Failure: Negative
*
* Programmer: Vailin Choi
* July 11, 2007
*
*-------------------------------------------------------------------------
*/
herr_t
H5F__super_size(H5F_t *f, hid_t dxpl_id, hsize_t *super_size, hsize_t *super_ext_size)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity check */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->sblock);
/* Set the superblock size */
if(super_size)
*super_size = (hsize_t)H5F_SUPERBLOCK_SIZE(f->shared->sblock);
/* Set the superblock extension size */
if(super_ext_size) {
if(H5F_addr_defined(f->shared->sblock->ext_addr)) {
H5O_loc_t ext_loc; /* "Object location" for superblock extension */
H5O_hdr_info_t hdr_info; /* Object info for superblock extension */
/* Set up "fake" object location for superblock extension */
H5O_loc_reset(&ext_loc);
ext_loc.file = f;
ext_loc.addr = f->shared->sblock->ext_addr;
/* Get object header info for superblock extension */
if(H5O_get_hdr_info(&ext_loc, dxpl_id, &hdr_info) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to retrieve superblock extension info")
/* Set the superblock extension size */
*super_ext_size = hdr_info.space.total;
} /* end if */
else
/* Set the superblock extension size to zero */
*super_ext_size = (hsize_t)0;
} /* end if */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5F__super_size() */
/*-------------------------------------------------------------------------
* Function: H5F_super_ext_write_msg()
*
* Purpose: Write the message with ID to the superblock extension
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Vailin Choi; Feb 2009
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_super_ext_write_msg(H5F_t *f, hid_t dxpl_id, void *mesg, unsigned id, hbool_t may_create)
{
hbool_t ext_created = FALSE; /* Whether superblock extension was created */
hbool_t ext_opened = FALSE; /* Whether superblock extension was opened */
H5O_loc_t ext_loc; /* "Object location" for superblock extension */
htri_t status; /* Indicate whether the message exists or not */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* Sanity checks */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->sblock);
/* Open/create the superblock extension object header */
if(H5F_addr_defined(f->shared->sblock->ext_addr)) {
if(H5F_super_ext_open(f, f->shared->sblock->ext_addr, &ext_loc) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTOPENOBJ, FAIL, "unable to open file's superblock extension")
} /* end if */
else {
HDassert(may_create);
if(H5F_super_ext_create(f, dxpl_id, &ext_loc) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "unable to create file's superblock extension")
ext_created = TRUE;
} /* end else */
HDassert(H5F_addr_defined(ext_loc.addr));
ext_opened = TRUE;
/* Check if message with ID does not exist in the object header */
if((status = H5O_msg_exists(&ext_loc, id, dxpl_id)) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to check object header for message or message exists")
/* Check for creating vs. writing */
if(may_create) {
if(status)
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "Message should not exist")
/* Create the message with ID in the superblock extension */
if(H5O_msg_create(&ext_loc, id, H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, mesg, dxpl_id) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to create the message in object header")
} /* end if */
else {
if(!status)
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "Message should exist")
/* Update the message with ID in the superblock extension */
if(H5O_msg_write(&ext_loc, id, H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, mesg, dxpl_id) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to write the message in object header")
} /* end else */
done:
/* Close the superblock extension, if it was opened */
if(ext_opened && H5F_super_ext_close(f, &ext_loc, dxpl_id, ext_created) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "unable to close file's superblock extension")
/* Mark superblock dirty in cache, if superblock extension was created */
if(ext_created && H5AC_mark_entry_dirty(f->shared->sblock) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty")
FUNC_LEAVE_NOAPI(ret_value)
} /* H5F_super_ext_write_msg() */
/*-------------------------------------------------------------------------
* Function: H5F_super_ext_remove_msg
*
* Purpose: Remove the message with ID from the superblock extension
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Vailin Choi; Feb 2009
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_super_ext_remove_msg(H5F_t *f, hid_t dxpl_id, unsigned id)
{
H5O_loc_t ext_loc; /* "Object location" for superblock extension */
hbool_t ext_opened = FALSE; /* Whether the superblock extension was opened */
int null_count = 0; /* # of null messages */
htri_t status; /* Indicate whether the message exists or not */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* Make sure that the superblock extension object header exists */
HDassert(H5F_addr_defined(f->shared->sblock->ext_addr));
/* Open superblock extension object header */
if(H5F_super_ext_open(f, f->shared->sblock->ext_addr, &ext_loc) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "error in starting file's superblock extension")
ext_opened = TRUE;
/* Check if message with ID exists in the object header */
if((status = H5O_msg_exists(&ext_loc, id, dxpl_id)) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to check object header for message")
else if(status) { /* message exists */
H5O_hdr_info_t hdr_info; /* Object header info for superblock extension */
/* Remove the message */
if(H5O_msg_remove(&ext_loc, id, H5O_ALL, TRUE, dxpl_id) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTDELETE, FAIL, "unable to delete free-space manager info message")
/* Get info for the superblock extension's object header */
if(H5O_get_hdr_info(&ext_loc, dxpl_id, &hdr_info) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to retrieve superblock extension info")
/* If the object header is an empty base chunk, remove superblock extension */
if(hdr_info.nchunks == 1) {
if((null_count = H5O_msg_count(&ext_loc, H5O_NULL_ID, dxpl_id)) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTCOUNT, FAIL, "unable to count messages")
else if((unsigned)null_count == hdr_info.nmesgs) {
HDassert(H5F_addr_defined(ext_loc.addr));
if(H5O_delete(f, dxpl_id, ext_loc.addr) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTCOUNT, FAIL, "unable to count messages")
f->shared->sblock->ext_addr = HADDR_UNDEF;
} /* end if */
} /* end if */
} /* end if */
done:
/* Close superblock extension object header, if opened */
if(ext_opened && H5F_super_ext_close(f, &ext_loc, dxpl_id, FALSE) < 0)
HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "unable to close file's superblock extension")
FUNC_LEAVE_NOAPI(ret_value)
} /* H5F_super_ext_remove_msg() */
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