perf(simulator): Make convergence callback optional

This change adds two new properties for controlling whether the
convergence callbacks of the source and consumer respectively should be
invoked. This saves a lot of unnecessary calls for stages that do not
have any implementation of the `onConvergence` method.

1 files changed, 4 insertions, 0 deletions

diff --git a/opendc-simulator/opendc-simulator-flow/src/test/kotlin/org/opendc/simulator/flow/FlowForwarderTest.kt b/opendc-simulator/opendc-simulator-flow/src/test/kotlin/org/opendc/simulator/flow/FlowForwarderTest.kt
index 3690e681..d548451f 100644
--- a/opendc-simulator/opendc-simulator-flow/src/test/kotlin/org/opendc/simulator/flow/FlowForwarderTest.kt
+++ b/opendc-simulator/opendc-simulator-flow/src/test/kotlin/org/opendc/simulator/flow/FlowForwarderTest.kt
@@ -297,6 +297,10 @@ internal class FlowForwarderTest {
 
         try {
             forwarder.consume(object : FlowSource {
+                override fun onStart(conn: FlowConnection, now: Long) {
+                    conn.shouldSourceConverge = true
+                }
+
                 override fun onPull(conn: FlowConnection, now: Long, delta: Long): Long {
                     return Long.MAX_VALUE
                 }