mirror of
https://github.com/nillerusr/source-engine.git
synced 2024-12-23 06:36:54 +00:00
447 lines
11 KiB
C++
447 lines
11 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//=============================================================================
|
|
|
|
#include "IServerRefreshResponse.h"
|
|
#include "ServerList.h"
|
|
//#include "ServerMsgHandlerDetails.h"
|
|
#include "Socket.h"
|
|
#include "proto_oob.h"
|
|
|
|
// for debugging
|
|
#include <VGUI_Controls.h>
|
|
#include <VGUI_ISystem.h>
|
|
#include <VGUI_IVGui.h>
|
|
|
|
typedef enum
|
|
{
|
|
NONE = 0,
|
|
INFO_REQUESTED,
|
|
INFO_RECEIVED
|
|
} QUERYSTATUS;
|
|
|
|
extern void v_strncpy(char *dest, const char *src, int bufsize);
|
|
#define min(a,b) (((a) < (b)) ? (a) : (b))
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Comparison function used in query redblack tree
|
|
//-----------------------------------------------------------------------------
|
|
bool QueryLessFunc( const query_t &item1, const query_t &item2 )
|
|
{
|
|
// compare port then ip
|
|
if (item1.addr.port < item2.addr.port)
|
|
return true;
|
|
else if (item1.addr.port > item2.addr.port)
|
|
return false;
|
|
|
|
int ip1 = *(int *)&item1.addr.ip;
|
|
int ip2 = *(int *)&item2.addr.ip;
|
|
|
|
return ip1 < ip2;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Constructor
|
|
//-----------------------------------------------------------------------------
|
|
CServerList::CServerList(IServerRefreshResponse *target) : m_Queries(0, MAX_QUERY_SOCKETS, QueryLessFunc)
|
|
{
|
|
m_pResponseTarget = target;
|
|
m_iUpdateSerialNumber = 1;
|
|
|
|
// calculate max sockets based on users' rate
|
|
char speedBuf[32];
|
|
int internetSpeed;
|
|
if (!vgui::system()->GetRegistryString("HKEY_CURRENT_USER\\Software\\Valve\\Tracker\\Rate", speedBuf, sizeof(speedBuf)-1))
|
|
{
|
|
// default to DSL speed if no reg key found (an unlikely occurance)
|
|
strcpy(speedBuf, "7500");
|
|
}
|
|
internetSpeed = atoi(speedBuf);
|
|
int maxSockets = (MAX_QUERY_SOCKETS * internetSpeed) / 10000;
|
|
if (internetSpeed < 6000)
|
|
{
|
|
// reduce the number of active queries again for slow internet speeds
|
|
maxSockets /= 2;
|
|
}
|
|
m_nMaxActive = maxSockets;
|
|
|
|
m_nRampUpSpeed = 1;
|
|
m_bQuerying = false;
|
|
m_nMaxRampUp = 1;
|
|
|
|
m_nInvalidServers = 0;
|
|
m_nRefreshedServers = 0;
|
|
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Destructor
|
|
//-----------------------------------------------------------------------------
|
|
CServerList::~CServerList()
|
|
{
|
|
// delete m_pQuery;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CServerList::RunFrame()
|
|
{
|
|
|
|
for(int i=0;i<m_Servers.Count();i++) {
|
|
m_Servers[i]->RunFrame();
|
|
}
|
|
|
|
QueryFrame();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: gets a server from the list by id, range [0, ServerCount)
|
|
//-----------------------------------------------------------------------------
|
|
serveritem_t &CServerList::GetServer(unsigned int serverID)
|
|
{
|
|
if (m_Servers.IsValidIndex(serverID))
|
|
{
|
|
return m_Servers[serverID]->GetServer();
|
|
}
|
|
|
|
// return a dummy
|
|
static serveritem_t dummyServer;
|
|
memset(&dummyServer, 0, sizeof(dummyServer));
|
|
return dummyServer;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: returns the number of servers
|
|
//-----------------------------------------------------------------------------
|
|
int CServerList::ServerCount()
|
|
{
|
|
return m_Servers.Count();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Returns the number of servers not yet pinged
|
|
//-----------------------------------------------------------------------------
|
|
int CServerList::RefreshListRemaining()
|
|
{
|
|
return m_RefreshList.Count();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: returns true if the server list is still in the process of talking to servers
|
|
//-----------------------------------------------------------------------------
|
|
bool CServerList::IsRefreshing()
|
|
{
|
|
return m_bQuerying;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: adds a new server to the list
|
|
//-----------------------------------------------------------------------------
|
|
unsigned int CServerList::AddNewServer(serveritem_t &server)
|
|
{
|
|
|
|
unsigned int serverID = m_Servers.AddToTail(new CServerInfo(this ,server));
|
|
m_Servers[serverID]->serverID = serverID;
|
|
return serverID;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Clears all servers from the list
|
|
//-----------------------------------------------------------------------------
|
|
void CServerList::Clear()
|
|
{
|
|
StopRefresh();
|
|
|
|
m_Servers.RemoveAll();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: stops all refreshing
|
|
//-----------------------------------------------------------------------------
|
|
void CServerList::StopRefresh()
|
|
{
|
|
// Reset query context
|
|
m_Queries.RemoveAll();
|
|
|
|
// reset server received states
|
|
int count = ServerCount();
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
m_Servers[i]->received = 0;
|
|
}
|
|
|
|
m_RefreshList.RemoveAll();
|
|
|
|
// up the serial number so previous results don't interfere
|
|
m_iUpdateSerialNumber++;
|
|
|
|
m_nInvalidServers = 0;
|
|
m_nRefreshedServers = 0;
|
|
m_bQuerying = false;
|
|
m_nMaxRampUp = m_nRampUpSpeed;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: marks a server to be refreshed
|
|
//-----------------------------------------------------------------------------
|
|
void CServerList::AddServerToRefreshList(unsigned int serverID)
|
|
{
|
|
if (!m_Servers.IsValidIndex(serverID))
|
|
return;
|
|
|
|
serveritem_t &server = m_Servers[serverID]->GetServer();
|
|
server.received = NONE;
|
|
|
|
m_RefreshList.AddToTail(serverID);
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CServerList::StartRefresh()
|
|
{
|
|
if (m_RefreshList.Count() > 0)
|
|
{
|
|
m_bQuerying = true;
|
|
}
|
|
}
|
|
|
|
|
|
void CServerList::ServerResponded()
|
|
{
|
|
for(int i=0;i<m_Servers.Count();i++) {
|
|
if ( m_Servers[i]->Refreshed() ) {
|
|
|
|
serveritem_t &server = m_Servers[i]->GetServer();
|
|
// copy in data necessary for filters
|
|
|
|
// add to ping times list
|
|
server.pings[0] = server.pings[1];
|
|
server.pings[1] = server.pings[2];
|
|
server.pings[2] = server.ping;
|
|
|
|
// calculate ping
|
|
int ping = CalculateAveragePing(server);
|
|
|
|
// make sure the ping changes each time so the user can see the server has updated
|
|
if (server.ping == ping && ping>0)
|
|
{
|
|
ping--;
|
|
}
|
|
server.ping = ping;
|
|
server.received = INFO_RECEIVED;
|
|
|
|
netadr_t adr;
|
|
adr.ip[0] = server.ip[0];
|
|
adr.ip[1] = server.ip[1];
|
|
adr.ip[2] = server.ip[2];
|
|
adr.ip[3] = server.ip[3];
|
|
adr.port = (server.port & 0xff) << 8 | (server.port & 0xff00) >> 8;
|
|
adr.type = NA_IP;
|
|
|
|
query_t finder;
|
|
finder.addr = adr;
|
|
|
|
m_Queries.Remove(finder);
|
|
// notify the UI of the new server info
|
|
m_pResponseTarget->ServerResponded(server);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: called when a server response has timed out
|
|
//-----------------------------------------------------------------------------
|
|
void CServerList::ServerFailedToRespond()
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: recalculates a servers ping, from the last few ping times
|
|
//-----------------------------------------------------------------------------
|
|
int CServerList::CalculateAveragePing(serveritem_t &server)
|
|
{
|
|
if (server.pings[0])
|
|
{
|
|
// three pings, throw away any the most extreme and average the other two
|
|
int middlePing = 0, lowPing = 1, highPing = 2;
|
|
if (server.pings[0] < server.pings[1])
|
|
{
|
|
if (server.pings[0] > server.pings[2])
|
|
{
|
|
lowPing = 2;
|
|
middlePing = 0;
|
|
highPing = 1;
|
|
}
|
|
else if (server.pings[1] < server.pings[2])
|
|
{
|
|
lowPing = 0;
|
|
middlePing = 1;
|
|
highPing = 2;
|
|
}
|
|
else
|
|
{
|
|
lowPing = 0;
|
|
middlePing = 2;
|
|
highPing = 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (server.pings[1] > server.pings[2])
|
|
{
|
|
lowPing = 2;
|
|
middlePing = 1;
|
|
highPing = 0;
|
|
}
|
|
else if (server.pings[0] < server.pings[2])
|
|
{
|
|
lowPing = 1;
|
|
middlePing = 0;
|
|
highPing = 2;
|
|
}
|
|
else
|
|
{
|
|
lowPing = 1;
|
|
middlePing = 2;
|
|
highPing = 0;
|
|
}
|
|
}
|
|
|
|
// we have the middle ping, see which it's closest to
|
|
if ((server.pings[middlePing] - server.pings[lowPing]) < (server.pings[highPing] - server.pings[middlePing]))
|
|
{
|
|
return (server.pings[middlePing] + server.pings[lowPing]) / 2;
|
|
}
|
|
else
|
|
{
|
|
return (server.pings[middlePing] + server.pings[highPing]) / 2;
|
|
}
|
|
}
|
|
else if (server.pings[1])
|
|
{
|
|
// two pings received, average them
|
|
return (server.pings[1] + server.pings[2]) / 2;
|
|
}
|
|
else
|
|
{
|
|
// only one ping received so far, use that
|
|
return server.pings[2];
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Called every frame to check queries
|
|
//-----------------------------------------------------------------------------
|
|
void CServerList::QueryFrame()
|
|
{
|
|
if (!m_bQuerying)
|
|
return;
|
|
|
|
float curtime = CSocket::GetClock();
|
|
|
|
// walk the query list, looking for any server timeouts
|
|
unsigned short idx = m_Queries.FirstInorder();
|
|
while (m_Queries.IsValidIndex(idx))
|
|
{
|
|
query_t &query = m_Queries[idx];
|
|
if ((curtime - query.sendTime) > 1.2f)
|
|
{
|
|
// server has timed out
|
|
serveritem_t &item = m_Servers[query.serverID]->GetServer();
|
|
|
|
// mark the server
|
|
item.pings[0] = item.pings[1];
|
|
item.pings[1] = item.pings[2];
|
|
item.pings[2] = 1200;
|
|
item.ping = CalculateAveragePing(item);
|
|
if (!item.hadSuccessfulResponse)
|
|
{
|
|
// remove the server if it has never responded before
|
|
item.doNotRefresh = true;
|
|
m_nInvalidServers++;
|
|
}
|
|
// respond to the game list notifying of the lack of response
|
|
m_pResponseTarget->ServerFailedToRespond(item);
|
|
item.received = false;
|
|
|
|
// get the next server now, since we're about to delete it from query list
|
|
unsigned short nextidx = m_Queries.NextInorder(idx);
|
|
|
|
// delete the query
|
|
m_Queries.RemoveAt(idx);
|
|
|
|
// move to next item
|
|
idx = nextidx;
|
|
}
|
|
else
|
|
{
|
|
// still waiting for server result
|
|
idx = m_Queries.NextInorder(idx);
|
|
}
|
|
}
|
|
|
|
|
|
// increment the number of sockets to use
|
|
m_nMaxRampUp = min(m_nMaxActive, m_nMaxRampUp + m_nRampUpSpeed);
|
|
|
|
// see if we should send more queries
|
|
while (m_RefreshList.Count() > 0 && (int)m_Queries.Count() < m_nMaxRampUp)
|
|
{
|
|
// get the first item from the list to refresh
|
|
int currentServer = m_RefreshList[0];
|
|
if (!m_Servers.IsValidIndex(currentServer))
|
|
break;
|
|
serveritem_t &item = m_Servers[currentServer]->GetServer();
|
|
|
|
item.time = curtime;
|
|
|
|
//QueryServer(m_pQuery, currentServer);
|
|
m_Servers[currentServer]->Query();
|
|
|
|
query_t query;
|
|
|
|
netadr_t adr;
|
|
adr.ip[0] = item.ip[0];
|
|
adr.ip[1] = item.ip[1];
|
|
adr.ip[2] = item.ip[2];
|
|
adr.ip[3] = item.ip[3];
|
|
adr.port = (item.port & 0xff) << 8 | (item.port & 0xff00) >> 8;
|
|
adr.type = NA_IP;
|
|
|
|
query.addr =adr;
|
|
query.sendTime=curtime;
|
|
query.serverID=item.serverID;
|
|
|
|
m_Queries.Insert(query);
|
|
|
|
// remove the server from the refresh list
|
|
m_RefreshList.Remove((int)0);
|
|
}
|
|
|
|
// Done querying?
|
|
if (m_Queries.Count() < 1)
|
|
{
|
|
m_bQuerying = false;
|
|
m_pResponseTarget->RefreshComplete();
|
|
|
|
// up the serial number, so that we ignore any late results
|
|
m_iUpdateSerialNumber++;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|