Bug 17127 – bad example code for std.concurrency.Generator
Status
RESOLVED
Resolution
FIXED
Severity
minor
Priority
P1
Component
phobos
Product
D
Version
D2
Platform
All
OS
All
Creation time
2017-01-30T11:17:07Z
Last change time
2018-04-19T12:20:32Z
Keywords
pull
Assigned to
No Owner
Creator
ag0aep6g
Comments
Comment #0 by ag0aep6g — 2017-01-30T11:17:07Z
Found by Profile Anaysis who posted to D.learn:
http://forum.dlang.org/post/[email protected]
The example code for std.concurrency.Generator [1] throws an OwnerTerminated exception. The code:
----
import std.concurrency;
import std.stdio;
void main()
{
auto tid = spawn(
{
while (true)
{
writeln(receiveOnly!int());
}
});
auto r = new Generator!int(
{
foreach (i; 1 .. 10)
yield(i);
});
foreach (e; r)
{
tid.send(e);
}
}
----
The exception gets thrown because the spawned thread still tries to receive ints after the main thread has finished. The example code should be fixed.
[1] https://dlang.org/library/std/concurrency/generator.html