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Use less CPU while waiting for human player to move

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After the engine plays a move in a game, a thread could get into a
state where it would poll for engine output every millisecond while
waiting for the human player to make the next move.

Even though this was not a busy wait, it would still use more CPU
resources than necessary, so the logic has been changed to prevent
this situation.
This commit is contained in:
Peter Osterlund 2020-01-18 13:30:08 +01:00
parent 48dda9d634
commit c39c260239
1 changed files with 2 additions and 1 deletions
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3
DroidFishApp/src/main/java/org/petero/droidfish/engine/DroidComputerPlayer.java
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@ -925,7 +925,8 @@ public class DroidComputerPlayer {
} }
private synchronized int getReadTimeout() { private synchronized int getReadTimeout() {
boolean needGuiUpdate = depthModified || currMoveModified || pvModified || statsModified; boolean needGuiUpdate = (searchRequest != null && searchRequest.currPos != null) &&
(depthModified || currMoveModified || pvModified || statsModified);
int timeout = 2000000000; int timeout = 2000000000;
if (needGuiUpdate) { if (needGuiUpdate) {
long now = System.currentTimeMillis(); long now = System.currentTimeMillis();