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Extract disk opening functions to separate module

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This commit is contained in:
Vitaliy Filippov
2022-07-15 01:38:30 +03:00
parent 30907852c2
commit dfd80626bd
15 changed files with 561 additions and 517 deletions
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src/blockstore_impl.h
+7 -29
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@@ -4,6 +4,7 @@
#pragma once
#include "blockstore.h"
#include "blockstore_disk.h"
#include <sys/types.h>
#include <sys/ioctl.h>
@@ -218,23 +219,10 @@ struct pool_shard_settings_t
class blockstore_impl_t
{
blockstore_disk_t dsk;
/******* OPTIONS *******/
std::string data_device, meta_device, journal_device;
uint32_t data_block_size;
uint64_t meta_offset;
uint64_t data_offset;
uint64_t cfg_journal_size, cfg_data_size;
// Required write alignment and journal/metadata/data areas' location alignment
uint32_t disk_alignment = 4096;
// Journal block size - minimum_io_size of the journal device is the best choice
uint64_t journal_block_size = 4096;
// Metadata block size - minimum_io_size of the metadata device is the best choice
uint64_t meta_block_size = 4096;
// Sparse write tracking granularity. 4 KB is a good choice. Must be a multiple of disk_alignment
uint64_t bitmap_granularity = 4096;
bool readonly = false;
// By default, Blockstore locks all opened devices exclusively. This option can be used to disable locking
bool disable_flock = false;
// It is safe to disable fsync() if drive write cache is writethrough
bool disable_data_fsync = false, disable_meta_fsync = false, disable_journal_fsync = false;
// Enable if you want every operation to be executed with an "implicit fsync"
@@ -269,16 +257,6 @@ class blockstore_impl_t
allocator *data_alloc = NULL;
uint8_t *zero_object;
uint32_t block_order;
uint64_t block_count;
uint32_t clean_entry_bitmap_size = 0, clean_entry_size = 0;
int meta_fd;
int data_fd;
uint64_t meta_device_size, meta_len;
uint64_t data_device_size, data_len;
uint64_t data_device_sect, meta_device_sect, journal_device_sect;
void *metadata_buffer = NULL;
struct journal_t journal;
@@ -395,9 +373,9 @@ public:
// Print diagnostics to stdout
void dump_diagnostics();
inline uint32_t get_block_size() { return data_block_size; }
inline uint64_t get_block_count() { return block_count; }
inline uint32_t get_block_size() { return dsk.data_block_size; }
inline uint64_t get_block_count() { return dsk.block_count; }
inline uint64_t get_free_block_count() { return data_alloc->get_free_count(); }
inline uint32_t get_bitmap_granularity() { return disk_alignment; }
inline uint64_t get_journal_size() { return journal.len; }
inline uint32_t get_bitmap_granularity() { return dsk.disk_alignment; }
inline uint64_t get_journal_size() { return dsk.journal_len; }
};