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+Mon May 27 06:22:41 2013 Koichi Sasada <ko1@atdot.net>
+
+ * include/ruby/debug.h, vm_trace.c: add rb_postponed_job API.
+ Postponed jobs are registered with this API. Registered jobs
+ are invoked at `ruby-running-safe-point' as soon as possible.
+ This timing is completely same as finalizer timing.
+
+ There are two APIs:
+ * rb_postponed_job_register(flags, func, data): register a
+ postponed job with data. flags are reserved.
+ * rb_postponed_job_register_one(flags, func, data): same as
+ `rb_postponed_job_register', but only one `func' job is
+ registered (skip if `func' is already registered).
+
+ This change is mostly written by Aman Gupta (tmm1).
+ https://bugs.ruby-lang.org/issues/8107#note-15
+ [Feature #8107]
+
+ * gc.c: use postponed job API for finalizer.
+
+ * common.mk: add dependency from vm_trace.c to debug.h.
+
+ * ext/-test-/postponed_job/extconf.rb, postponed_job.c,
+ test/-ext-/postponed_job/test_postponed_job.rb: add a test.
+
+ * thread.c: implement postponed API.
+
+ * vm_core.h: ditto.
+
Mon May 27 02:26:02 2013 Koichi Sasada <ko1@atdot.net>
* gc.c (gc_stat): collect promote_operation_count and