* lib/resolv.rb: use its own thread group for background threads.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2167 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Fri Mar  8 12:19:15 2002  Tanaka Akira  <akr@m17n.org>
+
+	* lib/resolv.rb: use its own thread group for background threads.
+
 Thu Mar  7 20:08:25 2002  Nobuyoshi Nakada  <nobu.nakada@nifty.ne.jp>
 
 	* gc.c (rb_source_filename): added. holds unique strings for file
@@ -66,7 +70,7 @@ Fri Mar  1 06:25:49 2002  Tanaka Akira  <akr@m17n.org>
 	  check msg_control and msg_accrights in struct msghdr.  check
 	  sys/uio.h.
 
-	* socket/socket.c: include sys/uio.h if available.
+	* ext/socket/socket.c: include sys/uio.h if available.
 	  (thread_read_select): new function.
 	  (unix_send_io): ditto.
 	  (unix_recv_io): ditto.

lib/resolv.rb

@@ -341,6 +341,8 @@ class Resolv
     Port = 53
     UDPSize = 512
 
+    DNSThreadGroup = ThreadGroup.new
+
     def initialize(config="/etc/resolv.conf")
       @mutex = Mutex.new
       @config = Config.new(config)
@@ -512,6 +514,7 @@ class Resolv
           @id = {}
           @id.default = -1
           @thread = Thread.new {
+	    DNSThreadGroup.add Thread.current
             loop {
               reply, from = @sock.recvfrom(UDPSize)
               msg = begin
@@ -565,6 +568,7 @@ class Resolv
           @sock.fcntl(Fcntl::F_SETFD, 1)
           @id = -1
           @thread = Thread.new {
+	    DNSThreadGroup.add Thread.current
             loop {
               reply = @sock.recv(UDPSize)
               msg = begin
@@ -616,6 +620,7 @@ class Resolv
           @id = -1
           @senders = {}
           @thread = Thread.new {
+	    DNSThreadGroup.add Thread.current
             loop {
               len = @sock.read(2).unpack('n')
               reply = @sock.read(len)