bcache
packagestandard library
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Documentation¶
Overview¶
Package bcache implements a GC-friendly cache (seeCache) for BoringCrypto.
Index¶
Constants¶
This section is empty.
Variables¶
This section is empty.
Functions¶
This section is empty.
Types¶
typeCache¶
type Cache[K, Vany] struct {// contains filtered or unexported fields}
A Cache is a GC-friendly concurrent map from unsafe.Pointer tounsafe.Pointer. It is meant to be used for maintaining shadowBoringCrypto state associated with certain allocated structs, inparticular public and private RSA and ECDSA keys.
The cache is GC-friendly in the sense that the keys do notindefinitely prevent the garbage collector from collecting them.Instead, at the start of each GC, the cache is cleared entirely. Thatis, the cache is lossy, and the loss happens at the start of each GC.This means that clients need to be able to cope with cache entriesdisappearing, but it also means that clients don't need to worry aboutcache entries keeping the keys from being collected.
func (*Cache[K, V])Clear¶
func (c *Cache[K, V]) Clear()
Clear clears the cache.The runtime does this automatically at each garbage collection;this method is exposed only for testing.
func (*Cache[K, V])Get¶
func (c *Cache[K, V]) Get(k *K) *V
Get returns the cached value associated with v,which is either the value v corresponding to the most recent call to Put(k, v)or nil if that cache entry has been dropped.
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