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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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10
vm_exec.c
View file

@ -84,7 +84,7 @@ vm_exec_core(rb_thread_t *th, VALUE initial)
#undef RESTORE_REGS
#define RESTORE_REGS() \
{ \
VM_REG_CFP = th->ec.cfp; \
VM_REG_CFP = th->ec->cfp; \
reg_pc = reg_cfp->pc; \
}
@ -102,7 +102,7 @@ vm_exec_core(rb_thread_t *th, VALUE initial)
return (VALUE)insns_address_table;
}
#endif
reg_cfp = th->ec.cfp;
reg_cfp = th->ec->cfp;
reg_pc = reg_cfp->pc;
#if OPT_STACK_CACHING
@ -142,7 +142,7 @@ rb_vm_get_insns_address_table(void)
static VALUE
vm_exec_core(rb_thread_t *th, VALUE initial)
{
register rb_control_frame_t *reg_cfp = th->ec.cfp;
register rb_control_frame_t *reg_cfp = th->ec->cfp;
while (1) {
reg_cfp = ((rb_insn_func_t) (*GET_PC()))(th, reg_cfp);
@ -158,8 +158,8 @@ vm_exec_core(rb_thread_t *th, VALUE initial)
return ret;
}
else {
VALUE err = th->ec.errinfo;
th->ec.errinfo = Qnil;
VALUE err = th->ec->errinfo;
th->ec->errinfo = Qnil;
return err;
}
}