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FOSDEM / video-hardware

FOSDEM video hardware
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Multi-process instead of multi-threaded #13

Open libv opened 4 years ago

libv commented 4 years ago

Use SHM for shared kms fd and shared data.

The current design is threaded, so we cannot easily restart things. By making it multi-process, we can send signals to individual processes.

Depends on issue #10

libv commented 3 years ago

SHM is not a solution. While mutex can be made robust (so they can catch process dying), this is no true for pthread_cond, even though the latter can be set to "shared", which makes one assume that sharing these sensibly across processes is a good thing to do.

Giving up on SHM, moving to sockets. 2.5manweeks burned.