forked from TrueCloudLab/distribution
43 lines
906 B
Go
43 lines
906 B
Go
// Copyright 2014 The Go Authors.
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// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
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// Licensed under the same terms as Go itself:
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// https://code.google.com/p/go/source/browse/LICENSE
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package http2
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import (
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"sync"
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)
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type pipe struct {
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b buffer
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c sync.Cond
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m sync.Mutex
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}
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// Read waits until data is available and copies bytes
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// from the buffer into p.
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func (r *pipe) Read(p []byte) (n int, err error) {
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r.c.L.Lock()
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defer r.c.L.Unlock()
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for r.b.Len() == 0 && !r.b.closed {
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r.c.Wait()
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}
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return r.b.Read(p)
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}
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// Write copies bytes from p into the buffer and wakes a reader.
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// It is an error to write more data than the buffer can hold.
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func (w *pipe) Write(p []byte) (n int, err error) {
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w.c.L.Lock()
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defer w.c.L.Unlock()
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defer w.c.Signal()
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return w.b.Write(p)
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}
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func (c *pipe) Close(err error) {
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c.c.L.Lock()
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defer c.c.L.Unlock()
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defer c.c.Signal()
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c.b.Close(err)
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}
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