rename thread internal naming

Now GVL is not process *Global* so this patch try to use
another words.

* `rb_global_vm_lock_t` -> `struct rb_thread_sched`
  * `gvl->owner` -> `sched->running`
  * `gvl->waitq` -> `sched->readyq`
* `rb_gvl_init` -> `rb_thread_sched_init`
* `gvl_destroy` -> `rb_thread_sched_destroy`
* `gvl_acquire` -> `thread_sched_to_running` # waiting -> ready -> running
* `gvl_release` -> `thread_sched_to_waiting` # running -> waiting
* `gvl_yield`   -> `thread_sched_yield`
* `GVL_UNLOCK_BEGIN` -> `THREAD_BLOCKING_BEGIN`
* `GVL_UNLOCK_END` -> `THREAD_BLOCKING_END`

* removed
  * `rb_ractor_gvl`
  * `rb_vm_gvl_destroy` (not used)

There are GVL functions such as `rb_thread_call_without_gvl()` yet
but I don't have good name to replace them. Maybe GVL stands for
"Greate Valuable Lock" or something like that.

1 files changed, 2 insertions, 8 deletions

diff --git a/ractor.c b/ractor.c
index 96c51eca70..ab993eb94e 100644
--- a/ractor.c
+++ b/ractor.c
@@ -1545,7 +1545,7 @@ rb_ractor_atfork(rb_vm_t *vm, rb_thread_t *th)
 }
 #endif
 
-void rb_gvl_init(rb_global_vm_lock_t *gvl);
+void rb_thread_sched_init(struct rb_thread_sched *);
 
 void
 rb_ractor_living_threads_init(rb_ractor_t *r)
@@ -1564,7 +1564,7 @@ ractor_init(rb_ractor_t *r, VALUE name, VALUE loc)
     rb_native_cond_initialize(&r->barrier_wait_cond);
 
     // thread management
-    rb_gvl_init(&r->threads.gvl);
+    rb_thread_sched_init(&r->threads.sched);
     rb_ractor_living_threads_init(r);
 
     // naming
@@ -1717,12 +1717,6 @@ rb_obj_is_main_ractor(VALUE gv)
     return r == GET_VM()->ractor.main_ractor;
 }
 
-rb_global_vm_lock_t *
-rb_ractor_gvl(rb_ractor_t *r)
-{
-    return &r->threads.gvl;
-}
-
 int
 rb_ractor_living_thread_num(const rb_ractor_t *r)
 {