Yukihiro "Matz" Matsumoto 47dfb771cf mruby-task: fix cooperative task yielding with Task.pass ...

this patch fixes several critical issues in the task scheduler:

1. vm integration for computed goto dispatch mode:
   - added task switching check in NEXT macro for computed goto
   - previous implementation only worked with switch dispatch mode
   - now Task.pass properly yields control to other tasks

2. task lifecycle tracking:
   - added 'started' flag to mrb_task structure
   - fixed first-run detection to avoid popping callinfo multiple times
   - vm overwrites context status during execution, making it unreliable

3. removed mrblib/task.rb:
   - empty Ruby method stubs were overriding C implementations
   - all task methods now properly implemented in C

4. cleaned up task scheduler loop:
   - proper task completion detection using switching flag
   - round-robin scheduling for tasks at same priority
   - clean scheduler exit when all tasks complete

tasks now cooperatively yield with Task.pass and complete cleanly.

Co-authored-by: Claude <noreply@anthropic.com>

2025-10-08 23:55:21 +09:00

..

task.h

mruby-task: fix cooperative task yielding with Task.pass

2025-10-08 23:55:21 +09:00