diff options
| author | John Hawthorn <john@hawthorn.email> | 2025-11-05 12:27:26 -0800 |
|---|---|---|
| committer | John Hawthorn <john@hawthorn.email> | 2025-11-20 14:06:33 -0800 |
| commit | ff1d23eccba3ab37e77bf2d2222cad9d6f99a0ab (patch) | |
| tree | 46ca6947b1297af3264c831353fdd7e5d98d86e1 /internal | |
| parent | d1b11592af75a5eee9199951a0c330eb8caa2825 (diff) | |
Use a serial to keep track of Mutex-owning Fiber
Previously this held a pointer to the Fiber itself, which requires
marking it (which was only implemented recently, prior to that it was
buggy). Using a monotonically increasing integer instead allows us to
avoid having a free function and keeps everything simpler.
My main motivations in making this change are that the root fiber lazily
allocates self, which makes the writebarrier implementation challenging
to do correctly, and wanting to avoid sending Mutexes to the remembered
set when locked by a short-lived Fiber.
Diffstat (limited to 'internal')
| -rw-r--r-- | internal/cont.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/internal/cont.h b/internal/cont.h index 3c2528a02a..21a054f37c 100644 --- a/internal/cont.h +++ b/internal/cont.h @@ -31,5 +31,6 @@ VALUE rb_fiber_inherit_storage(struct rb_execution_context_struct *ec, struct rb VALUE rb_fiberptr_self(struct rb_fiber_struct *fiber); unsigned int rb_fiberptr_blocking(struct rb_fiber_struct *fiber); struct rb_execution_context_struct * rb_fiberptr_get_ec(struct rb_fiber_struct *fiber); +rb_serial_t rb_fiber_serial(const struct rb_fiber_struct *fiber); #endif /* INTERNAL_CONT_H */ |