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, 2 insertions, 2 deletions

diff --git a/iseq.c b/iseq.c
index ccea4f1549..6b3379430c 100644
--- a/iseq.c
+++ b/iseq.c
@@ -663,7 +663,7 @@ rb_iseq_compile_with_option(VALUE src, VALUE file, VALUE realpath, VALUE line, c
     }
 
     if (!node) {
-	rb_exc_raise(th->ec.errinfo);
+	rb_exc_raise(th->ec->errinfo);
     }
     else {
 	INITIALIZED VALUE label = parent ?
@@ -870,7 +870,7 @@ iseqw_s_compile_file(int argc, VALUE *argv, VALUE self)
     parser = rb_parser_new();
     rb_parser_set_context(parser, NULL, FALSE);
     node = rb_parser_compile_file_path(parser, file, f, NUM2INT(line));
-    if (!node) exc = GET_THREAD()->ec.errinfo;
+    if (!node) exc = GET_THREAD()->ec->errinfo;
 
     rb_io_close(f);
     if (!node) rb_exc_raise(exc);