Use rb_execution_context_t instead of rb_thread_t

to represent execution context [Feature #14038]

* vm_core.h (rb_thread_t): rb_thread_t::ec is now a pointer.
  There are many code using `th` to represent execution context
  (such as cfp, VM stack and so on). To access `ec`, they need to
  use `th->ec->...` (adding one indirection) so that we need to
  replace them by passing `ec` instead of `th`.

* vm_core.h (GET_EC()): introduced to access current ec. Also
  remove `ruby_current_thread` global variable.

* cont.c (rb_context_t): introduce rb_context_t::thread_ptr instead of
  rb_context_t::thread_value.

* cont.c (ec_set_vm_stack): added to update vm_stack explicitly.

* cont.c (ec_switch): added to switch ec explicitly.

* cont.c (rb_fiber_close): added to terminate fibers explicitly.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60440 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 5 deletions

diff --git a/proc.c b/proc.c
index e8f2d411cd..3d943ba6f5 100644
--- a/proc.c
+++ b/proc.c
@@ -333,7 +333,7 @@ VALUE
 rb_binding_new(void)
 {
     rb_thread_t *th = GET_THREAD();
-    return rb_vm_make_binding(th, th->ec.cfp);
+    return rb_vm_make_binding(th, th->ec->cfp);
 }
 
 /*
@@ -698,7 +698,7 @@ proc_new(VALUE klass, int8_t is_lambda)
 {
     VALUE procval;
     rb_thread_t *th = GET_THREAD();
-    rb_control_frame_t *cfp = th->ec.cfp;
+    rb_control_frame_t *cfp = th->ec->cfp;
     VALUE block_handler;
 
     if ((block_handler = rb_vm_frame_block_handler(cfp)) == VM_BLOCK_HANDLER_NONE) {
@@ -1049,7 +1049,7 @@ rb_block_arity(void)
 {
     int min, max;
     rb_thread_t *th = GET_THREAD();
-    rb_control_frame_t *cfp = th->ec.cfp;
+    rb_control_frame_t *cfp = th->ec->cfp;
     VALUE block_handler = rb_vm_frame_block_handler(cfp);
     struct rb_block block;
 
@@ -1082,7 +1082,7 @@ int
 rb_block_min_max_arity(int *max)
 {
     rb_thread_t *th = GET_THREAD();
-    rb_control_frame_t *cfp = th->ec.cfp;
+    rb_control_frame_t *cfp = th->ec->cfp;
     VALUE block_handler = rb_vm_frame_block_handler(cfp);
     struct rb_block block;
 
@@ -1911,7 +1911,7 @@ rb_mod_define_method(int argc, VALUE *argv, VALUE mod)
 	body = rb_block_lambda();
 #else
 	rb_thread_t *th = GET_THREAD();
-	VALUE block_handler = rb_vm_frame_block_handler(th->ec.cfp);
+	VALUE block_handler = rb_vm_frame_block_handler(th->ec->cfp);
 	if (block_handler == VM_BLOCK_HANDLER_NONE) rb_raise(rb_eArgError, proc_without_block);
 
 	switch (vm_block_handler_type(block_handler)) {