Modern Chan Channel SendChan

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SendChan

Holds a send-only view of a channel, for a procedure that only produces.

Syntax

SendChan( of T )

Notes

• A direction, enforced at compile time: a producer given one of these cannot accidentally receive from the channel it is meant to fill.
• It shares the same underlying channel -- it is a view, not a copy, and closing through it closes the channel.
• RecvChan is the other half. Handing each side the view it needs is how a pipeline documents its own direction.
• Requires -mt.

Examples

#import "std/tasks"
using tasks

dim ch as Channel( of int32 ) = Channel( of int32 )( 4 )

'' The producer's half: it can send and close, and cannot receive
dim s as SendChan( of int32 ) = ch
dim as int32 v = 42
print s.Send( v )            '' true

'' The same channel underneath
dim as int32 got
print ch.TryReceive( got )   '' true
print got                    '' 42

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Library: Goroutines and Channels
Category: Goroutines and Channels
Documented under: Members