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a9d1642615
* replace bencode calls in http response with static generated values * move bytepool to shared folder * change receivers for `Scrapes` and `RequestAddresses` (bored of compile warnings)
41 lines
922 B
Go
41 lines
922 B
Go
// Package bytepool defines pool for storing and reusing raw bytes
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package bytepool
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import "sync"
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// BytePool is a cached pool of reusable byte slices.
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type BytePool struct {
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sync.Pool
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}
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// NewBytePool allocates a new BytePool with slices of equal length and capacity.
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func NewBytePool(length int) *BytePool {
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var bp BytePool
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bp.Pool.New = func() any {
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// This avoids allocations for the slice metadata, see:
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// https://staticcheck.io/docs/checks#SA6002
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b := make([]byte, length)
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return &b
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}
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return &bp
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}
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// Get returns a byte slice from the pool.
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func (bp *BytePool) Get() *[]byte {
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return bp.Pool.Get().(*[]byte)
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}
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// Put returns a byte slice to the pool.
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func (bp *BytePool) Put(b *[]byte) {
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*b = (*b)[:cap(*b)]
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// Zero out the bytes.
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// This specific expression is optimized by the compiler:
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// https://github.com/golang/go/issues/5373.
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for i := range *b {
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(*b)[i] = 0
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}
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bp.Pool.Put(b)
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}
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