44 lines
599 B
Go
44 lines
599 B
Go
package common
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import (
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"sync"
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)
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type SafeChannel struct {
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ch chan interface{}
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closed bool
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mux sync.Mutex
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}
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func NewSafeChannel(size int) *SafeChannel {
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return &SafeChannel{
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ch: make(chan interface{}, size),
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}
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}
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func (s *SafeChannel) Send(value interface{}) bool {
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s.mux.Lock()
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defer s.mux.Unlock()
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if s.closed {
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return false
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}
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s.ch <- value
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return true
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}
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func (s *SafeChannel) Receive() (interface{}, bool) {
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val, ok := <-s.ch
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return val, ok
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}
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func (s *SafeChannel) Close() {
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s.mux.Lock()
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defer s.mux.Unlock()
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if !s.closed {
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close(s.ch)
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s.closed = true
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}
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}
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