feat(net): add isSyncIdle method

Author: zeusoo001

framework/src/main/java/org/tron/core/net/peer/PeerConnection.java

@@ -167,6 +167,10 @@ public void setBlockBothHave(BlockId blockId) {
   }
 
   public boolean isIdle() {
+    return advInvRequest.isEmpty() && isSyncIdle();
+  }
+
+  public boolean isSyncIdle() {
     return syncBlockRequested.isEmpty() && syncChainRequested == null;
   }
 

framework/src/main/java/org/tron/core/net/service/sync/SyncService.java

@@ -134,7 +134,7 @@ public void processBlock(PeerConnection peer, BlockMessage blockMessage) {
       blockJustReceived.put(blockMessage, peer);
     }
     handleFlag = true;
-    if (peer.isIdle()) {
+    if (peer.isSyncIdle()) {
       if (peer.getRemainNum() > 0
           && peer.getSyncBlockToFetch().size() <= syncFetchBatchNum) {
         syncNext(peer);
@@ -226,7 +226,7 @@ private BlockId getBlockIdByNum(long num) throws P2pException {
   private void startFetchSyncBlock() {
     HashMap<PeerConnection, List<BlockId>> send = new HashMap<>();
     tronNetDelegate.getActivePeer().stream()
-        .filter(peer -> peer.isNeedSyncFromPeer() && peer.isIdle())
+        .filter(peer -> peer.isNeedSyncFromPeer() && peer.isSyncIdle())
         .filter(peer -> peer.isFetchAble())
         .forEach(peer -> {
           if (!send.containsKey(peer)) {

framework/src/test/java/org/tron/core/net/peer/PeerConnectionTest.java

@@ -78,7 +78,7 @@ public void testIsIdle() {
     Long time = System.currentTimeMillis();
     peerConnection.getAdvInvRequest().put(item, time);
     f = peerConnection.isIdle();
-    Assert.assertTrue(f);
+    Assert.assertTrue(!f);
 
     peerConnection.getAdvInvRequest().clear();
     f = peerConnection.isIdle();
@@ -98,6 +98,36 @@ public void testIsIdle() {
     Assert.assertTrue(!f);
   }
 
+  @Test
+  public void testIsSyncIdle() {
+    PeerConnection peerConnection = new PeerConnection();
+    boolean f = peerConnection.isSyncIdle();
+    Assert.assertTrue(f);
+
+    Item item = new Item(Sha256Hash.ZERO_HASH, Protocol.Inventory.InventoryType.TRX);
+    Long time = System.currentTimeMillis();
+    peerConnection.getAdvInvRequest().put(item, time);
+    f = peerConnection.isSyncIdle();
+    Assert.assertTrue(f);
+
+    peerConnection.getAdvInvRequest().clear();
+    f = peerConnection.isSyncIdle();
+    Assert.assertTrue(f);
+
+    BlockCapsule.BlockId blockId = new BlockCapsule.BlockId();
+    peerConnection.getSyncBlockRequested().put(blockId, time);
+    f = peerConnection.isSyncIdle();
+    Assert.assertTrue(!f);
+
+    peerConnection.getSyncBlockRequested().clear();
+    f = peerConnection.isSyncIdle();
+    Assert.assertTrue(f);
+
+    peerConnection.setSyncChainRequested(new Pair<>(new LinkedList<>(), time));
+    f = peerConnection.isSyncIdle();
+    Assert.assertTrue(!f);
+  }
+
   @Test
   public void testOnConnect() {
     PeerConnection peerConnection = new PeerConnection();