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