reflectronic

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CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

a Volatile write has “release semantics,” it means that any operations which were written before the write in the code must stay before the write. it is a useful property for… releasing a lock

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

this code is implementing a lock. the write releases the lock. if the CPU or compiler chooses to take some of the code that yeon wrote “inside” of the lock and execute it after that release, you have a broken lock. someone could see the lock is released, and enter the lock, but the other thread is still editing the protected data structures

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

the CPU and the compiler are allowed to execute memory reads and writes in a different order than the one which you wrote in the program

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

it is about the ordering of memory operations

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

the volatile is not about the atomicity

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

all of the interlocked methods are a full barier

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

it is described in the memory model https://github.com/dotnet/runtime/blob/main/docs/design/specs/Memory-model.md

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

yes, your lock looks fine

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

the volatile is a release, the interlocked is a full barrier. so nothing can move outside

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

all of the memory operations will complete before the flag is cleared

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

the compare exchange and volatile write ensures the memory operations do not fall outside of the lock

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

you mean, if you call RefreshLobbies twice in a row?

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

i am not sure what you mean by "if Interlocked.CompareExchange returns zero, the memory operations should be visible." if it returns zero, the memory operations haven't happened yet

23 replies

CC#

•Created by yeon on 4/16/2025 in #help

Mixing `Volatile` with `Interlocked`

yes, it is fine to mix them like that

23 replies

CC#

•Created by Oleander on 4/14/2025 in #help

Native AOT Shared Library - Correct Typing for Struct Pointer Parameter

why can't you do retro_system_info* info?

5 replies

CC#

•Created by SpaceCat on 4/13/2025 in #help

.NET generate assets for build and debug not apperaring

you go into the "Problems" window and it tells you what the problems are

46 replies

CC#

•Created by SpaceCat on 4/13/2025 in #help

.NET generate assets for build and debug not apperaring

for the second one, it generally means there is a problem with your code that you need to fix

46 replies

CC#

•Created by SpaceCat on 4/13/2025 in #help

.NET generate assets for build and debug not apperaring

46 replies

CC#

•Created by SpaceCat on 4/13/2025 in #help

.NET generate assets for build and debug not apperaring

well. i don't see how the two pictures are related to each other

46 replies

CC#

•Created by SpaceCat on 4/13/2025 in #help

.NET generate assets for build and debug not apperaring

can you show your vs code window

46 replies