Implement notifyd-based notification strategy for universal variables

(OS X specific)

1 files changed, 3 insertions, 0 deletions

diff --git a/env_universal_common.h b/env_universal_common.h
index ad5ed515..254a9f39 100644
--- a/env_universal_common.h
+++ b/env_universal_common.h
@@ -316,6 +316,9 @@ public:
     
     /* Recommended delay between polls. A value of 0 means no polling required (so no timeout) */
     virtual unsigned long usec_delay_between_polls() const;
+    
+    /* The notification_fd is readable; drain it */
+    virtual void drain_notification_fd(int fd);
 };
 
 std::string get_machine_identifier();