mirror of
https://github.com/luxfi/node.git
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zeekay
7cf87b230b
The module already called itself github.com/luxfi/node while containing no node in Go: cmd/luxd was twenty-one lines that printed the size of a few types, and the Go column of the matrix measured a VM plugin. A repo that fetches the thing it claims to be has not replaced it, so the Go sources move in — 1515 files, the daemon and everything under it — and the build reaches outside this module for nothing. Rust and C++ sit beside it unchanged and are still measured against it by the differential. That is the point of one repo: the reference implementation and the two ports are the same checkout, so parity is a thing you can run rather than a thing you assert. Verified: builds, and the closure carries no lux-private — checked at build time rather than believed. The daemon starts twelve chains on a local network (P X C Q Z A B G K M F, plus D through its plugin) and reports healthy.
61 lines
1.1 KiB
Go
61 lines
1.1 KiB
Go
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package merkledb
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import "sync"
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type bytesPool struct {
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slots chan struct{}
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bytesLock sync.Mutex
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bytes [][]byte
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}
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func newBytesPool(numSlots int) *bytesPool {
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return &bytesPool{
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slots: make(chan struct{}, numSlots),
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bytes: make([][]byte, 0, numSlots),
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}
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}
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func (p *bytesPool) Acquire() []byte {
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p.slots <- struct{}{}
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return p.pop()
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}
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func (p *bytesPool) TryAcquire() ([]byte, bool) {
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select {
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case p.slots <- struct{}{}:
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return p.pop(), true
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default:
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return nil, false
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}
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}
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func (p *bytesPool) pop() []byte {
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p.bytesLock.Lock()
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defer p.bytesLock.Unlock()
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numBytes := len(p.bytes)
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if numBytes == 0 {
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return nil
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}
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b := p.bytes[numBytes-1]
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p.bytes = p.bytes[:numBytes-1]
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return b
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}
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func (p *bytesPool) Release(b []byte) {
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// Before waking anyone waiting on a slot, return the bytes.
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p.bytesLock.Lock()
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p.bytes = append(p.bytes, b)
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p.bytesLock.Unlock()
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select {
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case <-p.slots:
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default:
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panic("release of unacquired semaphore")
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}
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}
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