reducing thread consumption. One thread is still updated as often as possible, but i don't know which.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/branches/hilnius@13195 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/network/protocol_manager.cpp

@@ -21,6 +21,7 @@
 #include "network/protocol.hpp"
 #include "network/network_manager.hpp"
 #include "utils/log.hpp"
+#include "graphics/irr_driver.hpp"
 
 #include <assert.h>
 #include <cstdlib>
@@ -33,6 +34,7 @@ void* protocolManagerUpdate(void* data)
     while(!manager->exit())
     {
         manager->update();
+        irr_driver->getDevice()->sleep(20);
     }
     return NULL;
 }

src/network/stk_host.cpp

@@ -40,7 +40,7 @@ void* STKHost::receive_data(void* self)
     ENetHost* host = (((STKHost*)(self))->m_host);
     while (1)
     {
-        while (enet_host_service(host, &event, 0) != 0) {
+        while (enet_host_service(host, &event, 20) != 0) {
             Event* evt = new Event(&event);
             if (event.type != ENET_EVENT_TYPE_NONE)
                 NetworkManager::getInstance()->notifyEvent(evt);