Utility thread and further threading support #29
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yuri91
requested changes
Jan 20, 2025
The main browser thread cannot use the atomic wait operation to sleep, so we have to emulate it using busy waiting.
The message queue will be used by the utility thread to listen for incoming messages from other threads. Message passing via memory was chosen because sending messages through JavaScript is unreliable in some situations.
This commit introduces the utility thread. It is spawned by the main thread, and utilizes a messaging system to receive messages from other threads and do work requested by those threads. For now, this is limited to spawning other workers.
Instead of testing if tid is 1, we now actually test for each Worker whether it is able to use Atomics.wait for a futex wait operation.
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