Add support for recvmsg_into. Add changelog. Fixes #773.

changelog.rst

@@ -26,6 +26,9 @@
   ``start_response`` do not contain a carriage return or newline in
   order to prevent HTTP response splitting (header injection), raising
   a :exc:`ValueError` if they do. See :issue:`775`.
+- Python 3: Add support for :meth:`socket.socket.sendmsg`,
+  :meth:`socket.socket.recvmsg` and :meth:`socket.socket.recvmsg_into`
+  on platforms where they are defined. Initial :pr:`773` by Jakub Klama.
 
 1.1.0 (Mar 5, 2016)
 ===================

gevent/_socket3.py

@@ -334,6 +334,15 @@ class socket(object):
                         raise
                 self._wait(self._read_event)
 
+        def recvmsg_into(self, *args):
+            while True:
+                try:
+                    return _socket.socket.recvmsg_into(self._sock, *args)
+                except error as ex:
+                    if ex.args[0] != EWOULDBLOCK or self.timeout == 0.0:
+                        raise
+                self._wait(self._read_event)
+
     def recvfrom(self, *args):
         while True:
             try:

greentest/patched_tests_setup.py

@@ -421,6 +421,7 @@ if sys.version_info[:2] >= (3, 4):
             'test_socket.InterruptedRecvTimeoutTest.testInterruptedSendTimeout',
             'test_socket.InterruptedRecvTimeoutTest.testInterruptedSendtoTimeout',
             'test_socket.InterruptedRecvTimeoutTest.testInterruptedRecvmsgTimeout',
+            'test_socket.InterruptedRecvTimeoutTest.testInterruptedRecvmsgIntoTimeout',
             'test_socket.InterruptedSendTimeoutTest.testInterruptedSendmsgTimeout',
         ]