93 lines
2 KiB
Go
93 lines
2 KiB
Go
|
package channels
|
||
|
|
|
||
|
|
// NativeInChannel implements the InChannel interface by wrapping a native go write-only channel.
|
||
|
|
type NativeInChannel chan<- interface{}
|
||
|
|
|
||
|
|
func (ch NativeInChannel) In() chan<- interface{} {
|
||
|
|
return ch
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeInChannel) Len() int {
|
||
|
|
return len(ch)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeInChannel) Cap() BufferCap {
|
||
|
|
return BufferCap(cap(ch))
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeInChannel) Close() {
|
||
|
|
close(ch)
|
||
|
|
}
|
||
|
|
|
||
|
|
// NativeOutChannel implements the OutChannel interface by wrapping a native go read-only channel.
|
||
|
|
type NativeOutChannel <-chan interface{}
|
||
|
|
|
||
|
|
func (ch NativeOutChannel) Out() <-chan interface{} {
|
||
|
|
return ch
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeOutChannel) Len() int {
|
||
|
|
return len(ch)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeOutChannel) Cap() BufferCap {
|
||
|
|
return BufferCap(cap(ch))
|
||
|
|
}
|
||
|
|
|
||
|
|
// NativeChannel implements the Channel interface by wrapping a native go channel.
|
||
|
|
type NativeChannel chan interface{}
|
||
|
|
|
||
|
|
// NewNativeChannel makes a new NativeChannel with the given buffer size. Just a convenience wrapper
|
||
|
|
// to avoid having to cast the result of make().
|
||
|
|
func NewNativeChannel(size BufferCap) NativeChannel {
|
||
|
|
return make(chan interface{}, size)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeChannel) In() chan<- interface{} {
|
||
|
|
return ch
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeChannel) Out() <-chan interface{} {
|
||
|
|
return ch
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeChannel) Len() int {
|
||
|
|
return len(ch)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeChannel) Cap() BufferCap {
|
||
|
|
return BufferCap(cap(ch))
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch NativeChannel) Close() {
|
||
|
|
close(ch)
|
||
|
|
}
|
||
|
|
|
||
|
|
// DeadChannel is a placeholder implementation of the Channel interface with no buffer
|
||
|
|
// that is never ready for reading or writing. Closing a dead channel is a no-op.
|
||
|
|
// Behaves almost like NativeChannel(nil) except that closing a nil NativeChannel will panic.
|
||
|
|
type DeadChannel struct{}
|
||
|
|
|
||
|
|
func NewDeadChannel() DeadChannel {
|
||
|
|
return DeadChannel{}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch DeadChannel) In() chan<- interface{} {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch DeadChannel) Out() <-chan interface{} {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch DeadChannel) Len() int {
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch DeadChannel) Cap() BufferCap {
|
||
|
|
return BufferCap(0)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ch DeadChannel) Close() {
|
||
|
|
}
|