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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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Fspace.c
* Dec 30 2013
* Quincey Koziol <koziol@hdfgroup.org>
*
* Purpose: Space allocation routines for the file.
*
*-------------------------------------------------------------------------
*/
/****************/
/* Module Setup */
/****************/
#include "H5Fmodule.h" /* This source code file is part of the H5F module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Fpkg.h" /* File access */
#include "H5FDprivate.h" /* File drivers */
/****************/
/* Local Macros */
/****************/
/* Define this to display debugging information for VFD SWMR */
/* #define H5F_VFD_SWMR_DEBUG */
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
static haddr_t H5F__extend_md(H5F_t *f, hsize_t size);
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5F__alloc
*
* Purpose: Wrapper for H5FD_alloc, to make certain EOA changes are
* reflected in superblock.
*
* Note: When the metadata cache routines are updated to allow
* marking an entry dirty without a H5F_t*, this routine should
* be changed to take a H5F_super_t* directly.
*
* Return: Success: The format address of the new file memory.
* Failure: The undefined address HADDR_UNDEF
*
* Programmer: Quincey Koziol
* Monday, December 30, 2013
*
*-------------------------------------------------------------------------
*/
haddr_t
H5F__alloc(H5F_t *f, H5F_mem_t type, hsize_t size, haddr_t *frag_addr, hsize_t *frag_size)
{
haddr_t ret_value = 0; /* Return value */
FUNC_ENTER_PACKAGE
/* check args */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->lf);
HDassert(type >= H5FD_MEM_DEFAULT && type < H5FD_MEM_NTYPES);
HDassert(size > 0);
/* Check whether the file can use temporary addresses */
if(f->shared->use_tmp_space) {
haddr_t eoa; /* Current EOA for the file */
/* Get the EOA for the file */
if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, type)))
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, HADDR_UNDEF, "Unable to get eoa")
/* Check for overlapping into file's temporary allocation space */
if(H5F_addr_gt((eoa + size), f->shared->tmp_addr))
HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, HADDR_UNDEF, "'normal' file space allocation request will overlap into 'temporary' file space")
} /* end if */
/* Call the file driver 'alloc' routine */
ret_value = H5FD_alloc(f->shared->lf, type, f, size, frag_addr, frag_size);
if(!H5F_addr_defined(ret_value))
HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, HADDR_UNDEF, "file driver 'alloc' request failed")
/* Mark EOA dirty */
if(H5F_eoa_dirty(f) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, HADDR_UNDEF, "unable to mark EOA as dirty")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F__alloc() */
/*-------------------------------------------------------------------------
* Function: H5F__free
*
* Purpose: Wrapper for H5FD_free, to make certain EOA changes are
* reflected in superblock.
*
* Note: When the metadata cache routines are updated to allow
* marking an entry dirty without a H5F_t*, this routine should
* be changed to take a H5F_super_t* directly.
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* Monday, December 30, 2013
*
*-------------------------------------------------------------------------
*/
herr_t
H5F__free(H5F_t *f, H5FD_mem_t type, haddr_t addr, hsize_t size)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Check args */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->lf);
HDassert(type >= H5FD_MEM_DEFAULT && type < H5FD_MEM_NTYPES);
HDassert(size > 0);
/* Call the file driver 'free' routine */
if(H5FD_free(f->shared->lf, type, f, addr, size) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "file driver 'free' request failed")
/* Mark EOA dirty */
if(H5F_eoa_dirty(f) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark EOA as dirty")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F__free() */
/*-------------------------------------------------------------------------
* Function: H5F__try_extend
*
* Purpose: Extend a block at the end of the file, if possible.
*
* Note: When the metadata cache routines are updated to allow
* marking an entry dirty without a H5F_t*, this routine should
* be changed to take a H5F_super_t* directly.
*
* Return: Success: TRUE(1) - Block was extended
* FALSE(0) - Block could not be extended
* Failure: FAIL
*
* Programmer: Quincey Koziol
* Monday, 30 December, 2013
*
*-------------------------------------------------------------------------
*/
htri_t
H5F__try_extend(H5F_t *f, H5FD_mem_t type, haddr_t blk_end, hsize_t extra_requested)
{
htri_t ret_value = FALSE; /* Return value */
FUNC_ENTER_PACKAGE
/* check args */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->lf);
HDassert(type >= H5FD_MEM_DEFAULT && type < H5FD_MEM_NTYPES);
HDassert(extra_requested > 0);
/* Extend the object by extending the underlying file */
if((ret_value = H5FD_try_extend(f->shared->lf, type, f, blk_end, extra_requested)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTEXTEND, FAIL, "driver try extend request failed")
/* H5FD_try_extend() updates driver message and marks the superblock
* dirty, so no need to do it again here.
*/
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F__try_extend() */
/*
* VFD SWMR
*/
/*-------------------------------------------------------------------------
* Function: H5F__free_md
*
* Purpose: Release space at the end of the metadata file's allocated space
*
* Return: Success: Non-negative
* Failure: Negative
*
*-------------------------------------------------------------------------
*/
herr_t
H5F__free_md(H5F_t *f, haddr_t addr, hsize_t size)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Check args */
HDassert(f);
HDassert(f->shared);
HDassert(size > 0);
/* Sanity checking */
if(!H5F_addr_defined(addr))
HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "invalid file offset")
if(addr > f->shared->maxaddr || H5F_addr_overflow(addr, size) || (addr + size) > f->shared->maxaddr)
HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "invalid file free space region to free")
/* Check if this free block is at the end of file allocated space.
* Truncate it if this is true.
*/
if(f->shared->vfd_swmr_md_eoa == (addr + size))
f->shared->vfd_swmr_md_eoa = addr;
else {
/* leak memory */
#ifdef H5F_VFD_SWMR_DEBUG
HDfprintf(stderr, "%s: LEAKED MEMORY!!! addr = %a, size = %Hu\n", FUNC, addr, size);
#endif
} /* end else */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F__free_md() */
/*-------------------------------------------------------------------------
* Function: H5F__alloc_md
*
* Purpose: Allocate space at the end of the metadata file
*
* Return: Success: Non-negative
* Failure: Negative
*
*-------------------------------------------------------------------------
*/
haddr_t
H5F__alloc_md(H5F_t *f, hsize_t size)
{
haddr_t ret_value = HADDR_UNDEF; /* Return value */
FUNC_ENTER_PACKAGE
/* check args */
HDassert(f);
HDassert(f->shared);
HDassert(size > 0);
/* Extend the EOA space of the metadata file */
ret_value = H5F__extend_md(f, size);
if(!H5F_addr_defined(ret_value))
HGOTO_ERROR(H5E_VFL, H5E_NOSPACE, HADDR_UNDEF, "driver eoa update request failed")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F__alloc_md() */
/*-------------------------------------------------------------------------
* Function: H5F__try_extend_md
*
* Purpose: Try to extend a block at the end of the metadata file, if possible.
*
* Return: Success: Non-negative
* Failure: Negative
*
*-------------------------------------------------------------------------
*/
htri_t
H5F__try_extend_md(H5F_t *f, haddr_t blk_end, hsize_t extra_requested)
{
htri_t ret_value = FALSE; /* Return value */
FUNC_ENTER_PACKAGE
/* check args */
HDassert(f);
HDassert(f->shared);
HDassert(extra_requested > 0);
/* Check if the block is exactly at the end of the file */
if(H5F_addr_eq(blk_end, f->shared->vfd_swmr_md_eoa)) {
/* Extend the EOA space of the metadata file */
if(HADDR_UNDEF == H5F__extend_md(f, extra_requested))
HGOTO_ERROR(H5E_FILE, H5E_CANTEXTEND, FAIL, "driver extend request failed")
/* Indicate success */
ret_value = TRUE;
}
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F__try_extend_md() */
/*-------------------------------------------------------------------------
* Function: H5F__extend_md
*
* Purpose: Extend the EOA space of the metadata file.
*
* Return: Success: Non-negative
* Failure: Negative
*
*-------------------------------------------------------------------------
*/
static haddr_t
H5F__extend_md(H5F_t *f, hsize_t size)
{
haddr_t eoa;
haddr_t ret_value = HADDR_UNDEF; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Get current end-of-allocated space address */
eoa = f->shared->vfd_swmr_md_eoa;
/* Check for overflow when extending */
if(H5F_addr_overflow(eoa, size) || (eoa + size) > f->shared->maxaddr)
HGOTO_ERROR(H5E_FILE, H5E_NOSPACE, HADDR_UNDEF, "file allocation request failed")
/* Set the address to return */
ret_value = eoa;
/* Extend the end-of-allocated space address */
f->shared->vfd_swmr_md_eoa += size;
done:
FUNC_LEAVE_NOAPI(ret_value)
}
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