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[SR-11621] main never called in synchronous Foundation Operations on Linux #3283

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Frizlab opened this issue Oct 16, 2019 · 2 comments
Closed

[SR-11621] main never called in synchronous Foundation Operations on Linux #3283

Frizlab opened this issue Oct 16, 2019 · 2 comments
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bug Foundation

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@Frizlab
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Frizlab commented Oct 16, 2019

Previous ID SR-11621
Radar None
Original Reporter @Frizlab
Type Bug
Status Resolved
Resolution Done
Environment

Docker image swift:5.1.1

Additional Detail from JIRA
Votes 0
Component/s Foundation
Labels Bug
Assignee None
Priority Medium

md5: 56f44681053e83413db38876260f25fd

Issue Description:

Given this very simple program:

import Foundation
class MyOp : Operation {
    override func main() { 
        print("hello")
    }
}
 
let op = MyOp()
op.start()

On macOS this works with all versions of Swift.
On Linux, starting with Swift 5.1, the operation is started and finished immediately, without going in the main function.
@Frizlab
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Frizlab commented Oct 16, 2019

As a corollary, BlockOperations have the same behaviour: they are finished as soon as they are started when using start() on Swift 5.1 on Linux (they are implemented internally by overriding main).

@spevans
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spevans commented Feb 7, 2020

This is fixed in swift-5.2-DEVELOPMENT-SNAPSHOT-2020-02-06-a-ubuntu18.04 and master

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@shahmishal shahmishal transferred this issue from apple/swift May 5, 2022
This issue was closed.
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@Frizlab @spevans