Support timeout for Addrinfo

Addrinfo.getaddrinfo and .foreach now accepts :timeout in seconds as
a keyword argument. If getaddrinfo_a(3) is available, the timeout will be
applied for name resolution. Otherwise, it will be ignored.

Socket.tcp accepts :resolv_timeout to use this feature.

1 files changed, 6 insertions, 0 deletions

diff --git a/time.c b/time.c
index 1e760f6ca5..18bed6d68a 100644
--- a/time.c
+++ b/time.c
@@ -2698,6 +2698,12 @@ rb_time_timespec(VALUE time)
     return time_timespec(time, FALSE);
 }
 
+struct timespec
+rb_time_timespec_interval(VALUE num)
+{
+    return time_timespec(num, TRUE);
+}
+
 enum {
     TMOPT_IN,
     TMOPT_MAX_