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Use rb_execution_context_t instead of rb_thread_t

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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
This commit is contained in:
ko1 2017-10-26 08:32:49 +00:00
parent 07f04f468d
commit 837fd5e494
32 changed files with 743 additions and 576 deletions
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4
vm_exec.h
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@ -157,11 +157,11 @@ default: \
#endif
#define VM_SP_CNT(th, sp) ((sp) - (th)->ec.vm_stack)
#define VM_SP_CNT(th, sp) ((sp) - (th)->ec->vm_stack)
#if OPT_CALL_THREADED_CODE
#define THROW_EXCEPTION(exc) do { \
th->ec.errinfo = (VALUE)(exc); \
th->ec->errinfo = (VALUE)(exc); \
return 0; \
} while (0)
#else