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authorNobuyoshi Nakada <[email protected]>2022-01-19 16:01:45 +0900
committerNobuyoshi Nakada <[email protected]>2022-01-19 19:57:16 +0900
commitd650b17686d49c2ce8e6a87039861154e93d4621 ()
treed118492480903dfa666ca3c407cc0e6c9698c8aa
parent5c7af72304d0ad33cd3f21b24a4bc44e8acd5b2c (diff)
`rb_fiber_terminate` must not return [Bug #18497]
In a forked process from a fiber, the fiber becomes the only fiber, `fiber_switch` does nothing as there is no other fibers, `rb_fiber_terminate` does not terminate the fiber. In that case, reaches the end of `fiber_entry` finaly, which is declared as "COROUTINE" and should never return.
Notes: Merged: https://.com/ruby/ruby/pull/5468
-rw-r--r--cont.c3
-rw-r--r--eval_intern.h2
-rw-r--r--test/fiber/test_process.rb15
-rw-r--r--test/ruby/test_fiber.rb5
4 files changed, 23 insertions, 2 deletions
@@ -2039,7 +2039,7 @@ rb_fiber_set_scheduler(VALUE klass, VALUE scheduler)
return rb_fiber_scheduler_set(scheduler);
}
-static void rb_fiber_terminate(rb_fiber_t *fiber, int need_interrupt, VALUE err);
void
rb_fiber_start(rb_fiber_t *fiber)
@@ -2408,6 +2408,7 @@ rb_fiber_terminate(rb_fiber_t *fiber, int need_interrupt, VALUE error)
fiber_switch(next_fiber, -1, &error, RB_NO_KEYWORDS, NULL, false);
else
fiber_switch(next_fiber, 1, &value, RB_NO_KEYWORDS, NULL, false);
}
static VALUE
@@ -287,7 +287,7 @@ VALUE rb_make_exception(int argc, const VALUE *argv);
NORETURN(void rb_method_name_error(VALUE, VALUE));
-void rb_fiber_start(rb_fiber_t*);
NORETURN(void rb_print_undef(VALUE, ID, rb_method_visibility_t));
NORETURN(void rb_print_undef_str(VALUE, VALUE));
@@ -33,4 +33,19 @@ class TestFiberProcess < Test::Unit::TestCase
end
end.join
end
end
@@ -407,6 +407,11 @@ class TestFiber < Test::Unit::TestCase
pid, status = Process.waitpid2(pid)
assert_not_predicate(status, :signaled?, bug5700)
assert_predicate(status, :success?, bug5700)
end
def test_exit_in_fiber