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add new functions mrb_gc_register/unregister; close #1411

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some routines need to refer mruby objects (e.g. callbacks), in that case
you have to protect your objects from garbage collection. the new functions
mrb_gc_register() keeps those objects from GC. you have to remove your
objects using mrb_gc_unregister() when your C routines use mruby objects
any longer, otherwise objects will leak.
This commit is contained in:
Yukihiro "Matz" Matsumoto
2015-09-22 00:15:29 +09:00
parent 386a2b8aa1
commit 73dc32c670
2 changed files with 54 additions and 0 deletions
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include/mruby.h
+6
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@@ -408,7 +408,13 @@ MRB_API mrb_value mrb_yield(mrb_state *mrb, mrb_value b, mrb_value arg);
MRB_API mrb_value mrb_yield_argv(mrb_state *mrb, mrb_value b, mrb_int argc, const mrb_value *argv);
MRB_API mrb_value mrb_yield_with_class(mrb_state *mrb, mrb_value b, mrb_int argc, const mrb_value *argv, mrb_value self, struct RClass *c);
/* mrb_gc_protect() leaves the object in the arena */
MRB_API void mrb_gc_protect(mrb_state *mrb, mrb_value obj);
/* mrb_gc_register() keeps the object from GC. */
MRB_API void mrb_gc_register(mrb_state *mrb, mrb_value obj);
/* mrb_gc_unregister() removes the object from GC root. */
MRB_API void mrb_gc_unregister(mrb_state *mrb, mrb_value obj);
MRB_API mrb_value mrb_to_int(mrb_state *mrb, mrb_value val);
#define mrb_int(mrb, val) mrb_fixnum(mrb_to_int(mrb, val))
MRB_API void mrb_check_type(mrb_state *mrb, mrb_value x, enum mrb_vtype t);