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55 lines
669 B
Go
55 lines
669 B
Go
package stream
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import (
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"bytes"
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"io"
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"sync/atomic"
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)
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type reader struct {
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w *writer
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off int
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closed uint32
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}
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// Read reads from the Buffer
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func (r *reader) Read(p []byte) (n int, err error) {
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r.w.RLock()
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defer r.w.RUnlock()
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var m int
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for len(p) > 0 {
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m, _ = bytes.NewReader(r.w.buffer.Bytes()[r.off:]).Read(p)
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n += m
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r.off += n
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if n > 0 {
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break
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}
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if r.w.Closed() {
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err = io.EOF
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break
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}
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if r.Closed() {
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err = io.EOF
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break
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}
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r.w.Wait()
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}
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return
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}
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func (r *reader) Close() error {
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atomic.StoreUint32(&r.closed, 1)
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return nil
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}
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func (r *reader) Closed() bool {
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return atomic.LoadUint32(&r.closed) != 0
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}
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