Modern Chan Count

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Count

Returns how much work is still outstanding, as a snapshot.

Syntax

Count( )

Examples

#import "std/tasks"
using tasks

dim wg as WaitGroup
print wg.Count( )            '' 0

wg.Add( 3 )
print wg.Count( )            '' 3

wg.Done( )
print wg.Count( )            '' 2

'' Read under the lock, so it is a consistent snapshot -- but it is only
'' a snapshot. Do not branch on it to decide whether to wait; call
'' Wait( ) or WaitFor( ), which cannot race.

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