CFS Apps under Linux: Process or Thread?

[dtran11]

I have about 10 custom apps under Linux. Does the CFE spawn my apps into individual processes (with separate memory region) or are they threads of a single process? Thanks

[irowebbn]

If you are using the provided OSAL layer, apps are spawned using POSIX threads. See https://github.com/nasa/osal/blob/1a8823f2dc93da2bcb3696c92c7aee4f512ed4f7/src/os/posix/src/os-impl-tasks.c#L450

[dtran11]

Thanks for the info. Has there been effort to use processes instead of threads on Linux so that one bad thread cannot bring all other apps down?

[irowebbn]

I don't know. Judging by a quick search through the public issues and pull requests, it doesn't seem like it.

[skliper]

Mixed trust/confidence and or memory/process partitioning is more often handled by running separate executables (and SBN or similar if needed).