aa4bc1b6e8
* block partial persist * replaced refactored files with old one. * removed gokit/log from deps * Tweaks to not overburden remote nodes with getheaders/getblocks * Changed Transporter interface to not take the server as argument due to a cause of race warning from the compiler * started server test suite * more test + return errors from message handlers * removed --race from build * Little improvements.
73 lines
1.5 KiB
Go
73 lines
1.5 KiB
Go
package core
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import (
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"sync"
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"github.com/CityOfZion/neo-go/pkg/util"
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)
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// Cache is data structure with fixed type key of Uint256, but has a
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// generic value. Used for block, tx and header cache types.
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type Cache struct {
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lock sync.RWMutex
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m map[util.Uint256]interface{}
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}
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// NewCache returns a ready to use Cache object.
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func NewCache() *Cache {
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return &Cache{
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m: make(map[util.Uint256]interface{}),
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}
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}
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// GetBlock will return a Block type from the cache.
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func (c *Cache) GetBlock(h util.Uint256) (block *Block, ok bool) {
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c.lock.RLock()
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defer c.lock.RUnlock()
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return c.getBlock(h)
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}
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func (c *Cache) getBlock(h util.Uint256) (block *Block, ok bool) {
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if v, b := c.m[h]; b {
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block, ok = v.(*Block)
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return
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}
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return
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}
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// Add adds the given hash along with its value to the cache.
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func (c *Cache) Add(h util.Uint256, v interface{}) {
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c.lock.Lock()
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defer c.lock.Unlock()
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c.add(h, v)
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}
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func (c *Cache) add(h util.Uint256, v interface{}) {
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c.m[h] = v
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}
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func (c *Cache) has(h util.Uint256) bool {
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_, ok := c.m[h]
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return ok
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}
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// Hash returns whether the cach contains the given hash.
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func (c *Cache) Has(h util.Uint256) bool {
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c.lock.Lock()
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defer c.lock.Unlock()
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return c.has(h)
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}
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// Len return the number of items present in the cache.
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func (c *Cache) Len() int {
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c.lock.RLock()
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defer c.lock.RUnlock()
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return len(c.m)
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}
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// Delete removes the item out of the cache.
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func (c *Cache) Delete(h util.Uint256) {
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c.lock.Lock()
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defer c.lock.Unlock()
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delete(c.m, h)
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}
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