core.ppyx: enable check watchers

gevent/callbacks.h

@@ -8,6 +8,7 @@
     DEFINE_CALLBACK(signal, Signal);   \
     DEFINE_CALLBACK(idle, Idle);       \
     DEFINE_CALLBACK(prepare, Prepare); \
+    DEFINE_CALLBACK(check, Check);     \
     DEFINE_CALLBACK(fork, Fork);       \
     DEFINE_CALLBACK(async, Async);     \
     DEFINE_CALLBACK(stat, Stat);

gevent/core.ppyx

@@ -31,6 +31,7 @@ cdef extern from "callbacks.h":
     void gevent_callback_signal(libev.ev_loop, void*, int)
     void gevent_callback_idle(libev.ev_loop, void*, int)
     void gevent_callback_prepare(libev.ev_loop, void*, int)
+    void gevent_callback_check(libev.ev_loop, void*, int)
     void gevent_callback_fork(libev.ev_loop, void*, int)
     void gevent_callback_async(libev.ev_loop, void*, int)
     void gevent_callback_child(libev.ev_loop, void*, int)
@@ -473,6 +474,9 @@ cdef public class loop [object PyGeventLoopObject, type PyGeventLoop_Type]:
     def prepare(self, ref=True, priority=None):
         return prepare(self, ref, priority)
 
+    def check(self, ref=True, priority=None):
+        return check(self, ref, priority)
+
     def fork(self, ref=True, priority=None):
         return fork(self, ref, priority)
 
@@ -949,6 +953,13 @@ cdef public class prepare(watcher) [object PyGeventPrepareObject, type PyGeventP
     INIT(prepare,,)
 
 
+cdef public class check(watcher) [object PyGeventCheckObject, type PyGeventCheck_Type]:
+
+    WATCHER(check)
+
+    INIT(check,,)
+
+
 cdef public class fork(watcher) [object PyGeventForkObject, type PyGeventFork_Type]:
 
     WATCHER(fork)

gevent/libev.pxd

@@ -103,6 +103,9 @@ cdef extern from "libev.h":
     struct ev_prepare:
         pass
 
+    struct ev_check:
+        pass
+
     struct ev_fork:
         pass
 
@@ -159,6 +162,10 @@ cdef extern from "libev.h":
     void ev_prepare_start(ev_loop*, ev_prepare*)
     void ev_prepare_stop(ev_loop*, ev_prepare*)
 
+    void ev_check_init(ev_check*, void* callback)
+    void ev_check_start(ev_loop*, ev_check*)
+    void ev_check_stop(ev_loop*, ev_check*)
+
     void ev_fork_init(ev_fork*, void* callback)
     void ev_fork_start(ev_loop*, ev_fork*)
     void ev_fork_stop(ev_loop*, ev_fork*)