From 74100ad043723956126ecd14941a2ae0b3bfa124 Mon Sep 17 00:00:00 2001
From: ZappoMan <bradh@konamoxt.com>
Date: Thu, 15 Aug 2013 12:01:50 -0700
Subject: [PATCH] make threads sleep

---
 libraries/shared/src/PacketSender.cpp            | 4 ++++
 libraries/shared/src/ReceivedPacketProcessor.cpp | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/libraries/shared/src/PacketSender.cpp b/libraries/shared/src/PacketSender.cpp
index ec3a6cff7f..4c150454a3 100644
--- a/libraries/shared/src/PacketSender.cpp
+++ b/libraries/shared/src/PacketSender.cpp
@@ -29,6 +29,10 @@ void PacketSender::queuePacket(sockaddr& address, unsigned char* packetData, ssi
 }
 
 bool PacketSender::process() {
+    if (_packets.size() == 0) {
+        const uint64_t SEND_THREAD_SLEEP_INTERVAL = (1000 * 1000)/60; // check at 60fps
+        usleep(SEND_THREAD_SLEEP_INTERVAL);
+    }
     while (_packets.size() > 0) {
         NetworkPacket& packet = _packets.front();
         
diff --git a/libraries/shared/src/ReceivedPacketProcessor.cpp b/libraries/shared/src/ReceivedPacketProcessor.cpp
index 8ab76397a2..3b6ccf5a98 100644
--- a/libraries/shared/src/ReceivedPacketProcessor.cpp
+++ b/libraries/shared/src/ReceivedPacketProcessor.cpp
@@ -18,6 +18,10 @@ void ReceivedPacketProcessor::queuePacket(sockaddr& address, unsigned char* pack
 }
 
 bool ReceivedPacketProcessor::process() {
+    if (_packets.size() == 0) {
+        const uint64_t RECEIVED_THREAD_SLEEP_INTERVAL = (1000 * 1000)/60; // check at 60fps
+        usleep(RECEIVED_THREAD_SLEEP_INTERVAL);
+    }
     while (_packets.size() > 0) {
         NetworkPacket& packet = _packets.front();
         processPacket(packet.getAddress(), packet.getData(), packet.getLength());