Crate foyer_storage

A disk cache engine that serves as the disk cache backend of foyer.

Modules

• test_utils
  Test utils for the foyer-storage crate.

Structs

• AdmitAllPicker
  A picker that always returns true.
• DeviceStats
  The statistics information of the device.
• DirectFileDevice
  A device that uses a single direct i/o file.
• DirectFileDeviceOptions
  Options for the direct file device.
• DirectFileDeviceOptionsBuilder
  [DirectFiDeviceOptionsBuilder] is used to build the options for the direct fs device.
• DirectFsDevice
  A device that uses direct i/o files in a directory of a file system.
• DirectFsDeviceOptions
  Options for the direct fs device.
• DirectFsDeviceOptionsBuilder
  DirectFsDeviceOptionsBuilder is used to build the options for the direct fs device.
• EnqueueHandle
  The handle created by Storage::enqueue.
• FifoPicker
  A picker that pick region to eviciton with a FIFO behaviour.
• InvalidRatioPicker
  Evict the region with the largest invalid data ratio.
• RateLimitPicker
  A picker that picks based on the disk statistics and the given rate limit.
• RejectAllPicker
  A picker that always returns false.
• RuntimeConfig
  The dedicated runtime config.
• RuntimeConfigBuilder
  The builder of the disk cache with a dedicated runtime.
• Statistics
  The statistics of the disk cache, which is used by the pickers.
• StoreBuilder
  The builder of the disk cache.
• TombstoneLogConfig
  The configurations for the tombstone log.
• TombstoneLogConfigBuilder
  The builder for the tombstone log config.

Enums

• Compression
  The compression algorithm of the disk cache.
• DeviceConfig
  The configurations for the device.
• Error
  Disk cache error type.
• RecoverMode
  The recover mode of the disk cache.
• Store
  The disk cache engine that serves as the storage backend of foyer.
• StoreConfig
  The configurations for the disk cache.

Traits

• AdmissionPicker
  The admission picker for the disk cache.
• Device
  Device represents 4K aligned block device.
• DeviceExt
  Device extend interfaces.
• DeviceOptions
  Options for the device.
• EvictionPicker
  The eviction picker for the disk cache.
• ReinsertionPicker
  The reinsertion picker for the disk cache.
• Storage
  The storage trait for the disk cache storage engine.

Type Aliases

• Result
  Disk cache result type.