Data Structures | Defines | Variables

P_CacheDisk.h File Reference

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#include "I_Cache.h"
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Data Structures

struct  DiskVolBlock
struct  DiskVolBlockQueue
struct  DiskVol
struct  DiskHeader
struct  CacheDisk

Defines

#define DISK_BAD(_x)   ((_x)->num_errors >= cache_config_max_disk_errors)
#define DISK_BAD_SIGNALLED(_x)   (_x->num_errors > cache_config_max_disk_errors)
#define SET_DISK_BAD(_x)   (_x->num_errors = cache_config_max_disk_errors)
#define SET_DISK_OKAY(_x)   (_x->num_errors = 0)
#define VOL_BLOCK_SIZE   (1024 * 1024 * 128)
#define MIN_VOL_SIZE   VOL_BLOCK_SIZE
#define ROUND_DOWN_TO_VOL_BLOCK(_x)   (((_x) &~ (VOL_BLOCK_SIZE - 1)))
#define VOL_BLOCK_SHIFT   27
#define ROUND_DOWN_TO_STORE_BLOCK(_x)   (((_x) >> STORE_BLOCK_SHIFT) << STORE_BLOCK_SHIFT)
#define STORE_BLOCKS_PER_VOL   (VOL_BLOCK_SIZE / STORE_BLOCK_SIZE)
#define DISK_HEADER_MAGIC   0xABCD1237

Variables

int cache_config_max_disk_errors

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_CacheDisk.h.


Define Documentation

#define DISK_BAD (   _x  )     ((_x)->num_errors >= cache_config_max_disk_errors)
#define DISK_BAD_SIGNALLED (   _x  )     (_x->num_errors > cache_config_max_disk_errors)

Definition at line 32 of file P_CacheDisk.h.

Referenced by AIO_Callback_handler::handle_disk_failure().

#define DISK_HEADER_MAGIC   0xABCD1237

Definition at line 43 of file P_CacheDisk.h.

Referenced by CacheDisk::openStart().

#define MIN_VOL_SIZE   VOL_BLOCK_SIZE

Definition at line 37 of file P_CacheDisk.h.

Referenced by CacheDisk::open().

#define ROUND_DOWN_TO_STORE_BLOCK (   _x  )     (((_x) >> STORE_BLOCK_SHIFT) << STORE_BLOCK_SHIFT)

Definition at line 40 of file P_CacheDisk.h.

#define ROUND_DOWN_TO_VOL_BLOCK (   _x  )     (((_x) &~ (VOL_BLOCK_SIZE - 1)))

Definition at line 38 of file P_CacheDisk.h.

#define SET_DISK_BAD (   _x  )     (_x->num_errors = cache_config_max_disk_errors)
#define SET_DISK_OKAY (   _x  )     (_x->num_errors = 0)

Definition at line 34 of file P_CacheDisk.h.

#define STORE_BLOCKS_PER_VOL   (VOL_BLOCK_SIZE / STORE_BLOCK_SIZE)

Definition at line 42 of file P_CacheDisk.h.

Referenced by create_config().

#define VOL_BLOCK_SHIFT   27

Definition at line 39 of file P_CacheDisk.h.

#define VOL_BLOCK_SIZE   (1024 * 1024 * 128)

Definition at line 36 of file P_CacheDisk.h.

Referenced by cplist_reconfigure(), CacheDisk::create_volume(), and create_volume().


Variable Documentation

Definition at line 72 of file Cache.cc.

Referenced by AIO_Callback_handler::handle_disk_failure(), and ink_cache_init().