cache

package

v0.3.0 Latest Latest Go to latest Published: Jul 11, 2022 License: BSD-2-Clause Imports: 9 Imported by: 1

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Repository

github.com/bookingcom/carbonapi

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Open Source Insights

Documentation ¶

Index ¶

Variables
type BytesCache
type Cache
type ExpireCache
type MemcachedCache
type NullCache
- func (NullCache) Get(string) ([]byte, error)
- func (NullCache) Set(string, []byte, int32)
type ReplicatedMemcached
- func (m *ReplicatedMemcached) Get(k string) ([]byte, error)
- func (rm *ReplicatedMemcached) Set(k string, val []byte, expire int32)

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	ErrTimeout  = errors.New("cache: timeout")
	ErrNotFound = errors.New("cache: not found")
)

Functions ¶

This section is empty.

Types ¶

type BytesCache ¶

type BytesCache interface {
	Get(k string) ([]byte, error)
	Set(k string, v []byte, expire int32)
}

func NewExpireCache ¶

func NewExpireCache(maxsize uint64) BytesCache

func NewMemcached ¶

func NewMemcached(prefix string, timeoutMs uint64, servers ...string) BytesCache

func NewReplicatedMemcached ¶ added in v0.2.0

func NewReplicatedMemcached(prefix string, timeout uint64, servers ...string) BytesCache

NewReplicatedMemcached creates a set of identical memcached instances.

type Cache ¶ added in v0.2.0

type Cache interface {
	Get(string) (*memcache.Item, error)
	Set(*memcache.Item) error
}

Cache is a cache interface. Mainly for testing abilities.

type ExpireCache ¶

type ExpireCache struct {
	// contains filtered or unexported fields
}

func (ExpireCache) Get ¶

func (ec ExpireCache) Get(k string) ([]byte, error)

func (ExpireCache) Items ¶

func (ec ExpireCache) Items() int

func (ExpireCache) Set ¶

func (ec ExpireCache) Set(k string, v []byte, expire int32)

func (ExpireCache) Size ¶

func (ec ExpireCache) Size() uint64

type MemcachedCache ¶

type MemcachedCache struct {
	// contains filtered or unexported fields
}

func (*MemcachedCache) Get ¶

func (m *MemcachedCache) Get(k string) ([]byte, error)

func (*MemcachedCache) Set ¶

func (m *MemcachedCache) Set(k string, v []byte, expire int32)

func (*MemcachedCache) Timeouts ¶

func (m *MemcachedCache) Timeouts() uint64

type NullCache ¶

type NullCache struct{}

func (NullCache) Get ¶

func (NullCache) Get(string) ([]byte, error)

func (NullCache) Set ¶

func (NullCache) Set(string, []byte, int32)

type ReplicatedMemcached ¶ added in v0.2.0

type ReplicatedMemcached struct {
	// contains filtered or unexported fields
}

ReplicatedMemcached represents the caching setup when all the memcached instances are identical. Each read and write refers to all of them.

func (*ReplicatedMemcached) Get ¶ added in v0.2.0

func (m *ReplicatedMemcached) Get(k string) ([]byte, error)

Get gets value for the key from the replicated memcached. It sends the request to all replicas and picks the first valid answer (event if it's a not-found) or times out.

func (*ReplicatedMemcached) Set ¶ added in v0.2.0

func (rm *ReplicatedMemcached) Set(k string, val []byte, expire int32)

Set sets the key-value pair for all cache instances.

Source Files ¶

View all Source files

cache.go

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