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Data Structures
struct	VolHeaderFooter
struct	EvacuationKey
struct	EvacuationBlock
struct	Vol
struct	AIO_Callback_handler
struct	CacheVol
struct	Doc
Defines
#define	CACHE_BLOCK_SHIFT 9
#define	CACHE_BLOCK_SIZE (1<<CACHE_BLOCK_SHIFT)
#define	ROUND_TO_STORE_BLOCK(_x) INK_ALIGN((_x), STORE_BLOCK_SIZE)
#define	ROUND_TO_CACHE_BLOCK(_x) INK_ALIGN((_x), CACHE_BLOCK_SIZE)
#define	ROUND_TO_SECTOR(_p, _x) INK_ALIGN((_x), _p->sector_size)
#define	ROUND_TO(_x, _y) INK_ALIGN((_x), (_y))
#define	VOL_MAGIC 0xF1D0F00D
#define	START_BLOCKS 16
#define	START_POS ((off_t)START_BLOCKS * CACHE_BLOCK_SIZE)
#define	AGG_SIZE (4 * 1024 * 1024)
#define	AGG_HIGH_WATER (AGG_SIZE / 2)
#define	EVACUATION_SIZE (2 * AGG_SIZE)
#define	MAX_VOL_SIZE ((off_t)512 * 1024 * 1024 * 1024 * 1024)
#define	STORE_BLOCKS_PER_CACHE_BLOCK (STORE_BLOCK_SIZE / CACHE_BLOCK_SIZE)
#define	MAX_VOL_BLOCKS (MAX_VOL_SIZE / CACHE_BLOCK_SIZE)
#define	MAX_FRAG_SIZE (AGG_SIZE - sizeofDoc)
#define	LEAVE_FREE DEFAULT_MAX_BUFFER_SIZE
#define	PIN_SCAN_EVERY 16
#define	VOL_HASH_TABLE_SIZE 32707
#define	VOL_HASH_EMPTY 0xFFFF
#define	VOL_HASH_ALLOC_SIZE (8 * 1024 * 1024)
#define	LOOKASIDE_SIZE 256
#define	EVACUATION_BUCKET_SIZE (2 * EVACUATION_SIZE)
#define	RECOVERY_SIZE EVACUATION_SIZE
#define	AIO_NOT_IN_PROGRESS 0
#define	AIO_AGG_WRITE_IN_PROGRESS -1
#define	AUTO_SIZE_RAM_CACHE -1
#define	DEFAULT_TARGET_FRAGMENT_SIZE (1048576 - sizeofDoc)
#define	dir_offset_evac_bucket(_o) (_o / (EVACUATION_BUCKET_SIZE / CACHE_BLOCK_SIZE))
#define	dir_evac_bucket(_e) dir_offset_evac_bucket(dir_offset(_e))
#define	offset_evac_bucket(_d, _o) dir_offset_evac_bucket((offset_to_vol_offset(_d, _o)
#define	DOC_MAGIC ((uint32_t)0x5F129B13)
#define	DOC_CORRUPT ((uint32_t)0xDEADBABE)
#define	DOC_NO_CHECKSUM ((uint32_t)0xA0B0C0D0)
#define	sizeofDoc (((uint32_t)(uintptr_t)&((Doc*)0)->checksum)+(uint32_t)sizeof(uint32_t))
Functions
TS_INLINE int	vol_headerlen (Vol *d)
TS_INLINE size_t	vol_dirlen (Vol *d)
TS_INLINE int	vol_direntries (Vol *d)
TS_INLINE int	vol_out_of_phase_valid (Vol d, Dir e)
TS_INLINE int	vol_out_of_phase_agg_valid (Vol d, Dir e)
TS_INLINE int	vol_out_of_phase_write_valid (Vol d, Dir e)
TS_INLINE int	vol_in_phase_valid (Vol d, Dir e)
TS_INLINE off_t	vol_offset (Vol d, Dir e)
TS_INLINE off_t	offset_to_vol_offset (Vol *d, off_t pos)
TS_INLINE off_t	vol_offset_to_offset (Vol *d, off_t pos)
TS_INLINE Dir *	vol_dir_segment (Vol *d, int s)
TS_INLINE int	vol_in_phase_agg_buf_valid (Vol d, Dir e)
TS_INLINE off_t	vol_relative_length (Vol *v, off_t start_offset)
int	vol_dir_clear (Vol *d)
int	vol_init (Vol d, char s, off_t blocks, off_t skip, bool clear)
TS_INLINE EvacuationBlock *	evacuation_block_exists (Dir dir, Vol p)
TS_INLINE EvacuationBlock *	new_EvacuationBlock (EThread *t)
TS_INLINE void	free_EvacuationBlock (EvacuationBlock b, EThread t)
Variables
Vol **	gvol
volatile int	gnvol
ClassAllocator< OpenDirEntry >	openDirEntryAllocator
ClassAllocator< EvacuationBlock >	evacuationBlockAllocator
ClassAllocator< EvacuationKey >	evacuationKeyAllocator
unsigned short *	vol_hash_table

Detailed Description

A brief file description.

License

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Definition in file P_CacheVol.h.