Periodically print notifications logs if debug adapter is idle waiting

Author: fwcd

adapter/src/main/kotlin/org/javacs/ktda/adapter/KotlinDebugAdapter.kt

@@ -17,7 +17,7 @@ import org.javacs.kt.LogMessage
 import org.javacs.kt.util.AsyncExecutor
 import org.javacs.ktda.util.JSON_LOG
 import org.javacs.ktda.util.KotlinDAException
-import org.javacs.ktda.util.waitUntil
+import org.javacs.ktda.util.waitFor
 import org.javacs.ktda.core.Debuggee
 import org.javacs.ktda.core.DebugContext
 import org.javacs.ktda.core.event.DebuggeeEventBus
@@ -114,7 +114,7 @@ class KotlinDebugAdapter(
 		// (LSP4J does currently not provide a mechanism to hook into the request/response machinery)
 
 		LOG.trace("Waiting for configurationDoneResponse")
-		waitUntil { (configurationDoneResponse?.numberOfDependents ?: 0) != 0 }
+		waitFor("configuration done response") { (configurationDoneResponse?.numberOfDependents ?: 0) != 0 }
 		LOG.trace("Done waiting for configurationDoneResponse")
 	}
 
@@ -373,7 +373,7 @@ class KotlinDebugAdapter(
 	}
 
 	private inline fun <T> onceDebuggeeIsPresent(body: (Debuggee) -> T): T {
-		waitUntil { debuggee != null }
+		waitFor("debuggee") { debuggee != null }
 		return body(debuggee!!)
 	}
 

adapter/src/main/kotlin/org/javacs/ktda/util/Utils.kt

@@ -50,9 +50,19 @@ fun <T> nonNull(item: T?, errorMsgIfNull: String): T =
  * Blocks the current thread until the condition becomes true.
  * Checks are performed in 80 ms intervals.
  */
-inline fun waitUntil(condition: () -> Boolean) {
+inline fun waitFor(what: String, condition: () -> Boolean) {
+    val delayUntilNotificationMs = 10_000
+    val startTime = System.currentTimeMillis()
+    var lastTime = startTime
+    
     while (!condition()) {
         Thread.sleep(80)
+        
+        val now = System.currentTimeMillis()
+        if ((now - lastTime) > delayUntilNotificationMs) {
+            LOG.info("Waiting for {} for {} seconds...", what, (now - startTime) / 1000)
+            lastTime = now
+        }
     }
 }