Hello, I am trying to implement a `Lock` class to ...

# kotlin-native

[Marcin Wisniowski]

Hello, I am trying to implement a Lock class to act as a mutex, for my pthread using code. Is there any example of that? I tried to do it like ktor: https://github.com/ktorio/ktor/blob/master/ktor-utils/posix/src/io/ktor/util/LockNative.kt but it calls functions like ktor_mutex_create whose implementation I cannot find. This is my current implementation: https://pastebin.com/THbMhiqD but I'm not sure it's correct. It clearly does something right because my threads don't immediately fail now when I lock with it, but I still get Segmentation Faults sometimes and I think it may be due to my Lock implementation.

[Arkadii Ivanov]

https://github.com/badoo/Reaktive/tree/master/utils/src/commonMain/kotlin/com/badoo/reaktive/utils/lock

[Arkadii Ivanov]

You can also use the separate package 'utils' which is published on Bintray. It provides Lock, Condition, AtomicReference and some other stuff.

[Marcin Wisniowski]

@Arkadii Ivanov the code you linked just has the expect classes with no actual implementation, where can I find the implementation?

[Arkadii Ivanov]

They are in sibling source sets, separate for jvm, iOS and Linux

[Arkadii Ivanov]

This is for iOS https://github.com/badoo/Reaktive/blob/master/utils/src/iosCommonMain/kotlin/src/com/badoo/reaktive/utils/lock/Lock.kt

[Arkadii Ivanov]

This is for Linux https://github.com/badoo/Reaktive/blob/master/utils/src/linuxCommonMain/kotlin/com/badoo/reaktive/utils/lock/Lock.kt

[Marcin Wisniowski]

Ah thank you, I was looking for the Linux one.

[Arkadii Ivanov]

Don't forget that native locks have to be destroyed to avoid memory leaks