5387747e92
Bumps [github.com/containerd/cgroups/v3](https://github.com/containerd/cgroups) from 3.0.2 to 3.0.3. - [Release notes](https://github.com/containerd/cgroups/releases) - [Commits](https://github.com/containerd/cgroups/compare/v3.0.2...v3.0.3) --- updated-dependencies: - dependency-name: github.com/containerd/cgroups/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>
32 lines
812 B
Go
32 lines
812 B
Go
package internal
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import (
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"bytes"
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"sync"
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)
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var bytesBufferPool = sync.Pool{
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New: func() interface{} {
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return new(bytes.Buffer)
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},
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}
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// NewBuffer retrieves a [bytes.Buffer] from a pool an re-initialises it.
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//
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// The returned buffer should be passed to [PutBuffer].
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func NewBuffer(buf []byte) *bytes.Buffer {
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wr := bytesBufferPool.Get().(*bytes.Buffer)
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// Reinitialize the Buffer with a new backing slice since it is returned to
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// the caller by wr.Bytes() below. Pooling is faster despite calling
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// NewBuffer. The pooled alloc is still reused, it only needs to be zeroed.
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*wr = *bytes.NewBuffer(buf)
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return wr
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}
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// PutBuffer releases a buffer to the pool.
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func PutBuffer(buf *bytes.Buffer) {
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// Release reference to the backing buffer.
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*buf = *bytes.NewBuffer(nil)
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bytesBufferPool.Put(buf)
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}
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