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8117a2bcee
Turns out that `pool.Put(buf)` had to *allocate* because we needed to turn
`[]byte` into `interface{}`. Apparently, we've never done this correctly we just
never noticed because we never really used buffer pools extensively.
However, since migrating yamux to a buffer-pool backed buffer, this started
showing up in allocation profiles.
License: MIT
Signed-off-by: Steven Allen <steven@stebalien.com>
48 lines
802 B
Go
48 lines
802 B
Go
package namesys
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import (
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"time"
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path "gx/ipfs/QmTy6VoHV2E5baEFDXbp1xmHhxSVff5qTSrTsoXxD1eB2P/go-path"
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)
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func (ns *mpns) cacheGet(name string) (path.Path, bool) {
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if ns.cache == nil {
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return "", false
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}
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ientry, ok := ns.cache.Get(name)
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if !ok {
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return "", false
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}
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entry, ok := ientry.(cacheEntry)
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if !ok {
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// should never happen, purely for sanity
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log.Panicf("unexpected type %T in cache for %q.", ientry, name)
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}
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if time.Now().Before(entry.eol) {
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return entry.val, true
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}
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ns.cache.Remove(name)
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return "", false
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}
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func (ns *mpns) cacheSet(name string, val path.Path, ttl time.Duration) {
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if ns.cache == nil || ttl <= 0 {
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return
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}
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ns.cache.Add(name, cacheEntry{
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val: val,
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eol: time.Now().Add(ttl),
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})
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}
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type cacheEntry struct {
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val path.Path
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eol time.Time
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}
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