uloop: add support for interval timers

[project/libubox.git] / examples / uloop-example.lua

diff --git a/examples/uloop-example.lua b/examples/uloop-example.lua
index 511b9ea0b3190560a6d181594d4ce10b12c6588d..f3aef60debad4a2a8f19611e001ef9dd9ce1fba8 100755 (executable)
--- a/examples/uloop-example.lua
+++ b/examples/uloop-example.lua
@@ -24,6 +24,23 @@ uloop.timer(function() print("2000 ms timer run"); end, 2000)
 -- timer example 3 (will never run)
 uloop.timer(function() print("3000 ms timer run"); end, 3000):cancel()
 
+-- periodic interval timer
+local intv
+intv = uloop.interval(function()
+       print(string.format("Interval expiration #%d - %dms until next expiration",
+               intv:expirations(), intv:remaining()))
+
+       -- after 5 expirations, lower interval to 500ms
+       if intv:expirations() >= 5 then
+               intv:set(500)
+       end
+
+       -- cancel after 10 expirations
+       if intv:expirations() >= 10 then
+               intv:cancel()
+       end
+end, 1000)
+
 -- process
 function p1(r)
        print("Process 1 completed")