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authortruelight <truelight@openttd.org>2005-03-29 19:10:13 +0000
committertruelight <truelight@openttd.org>2005-03-29 19:10:13 +0000
commit40a9b91b37ecac9aad66d1deeca4c6ad2cff1f7f (patch)
tree71c58f5741951475a3a1776a1833c7a13b621ba7
parent58a72bf48371143268c8b1ae07d1bce6d0d76daf (diff)
downloadopenttd-40a9b91b37ecac9aad66d1deeca4c6ad2cff1f7f.tar.xz
(svn r2106) -Fix: improved the network-join algoritm, it is now a bit more stable
-Add: added 'pause_on_join' and 'max_join_time' for MP games, where you can auto-pause the game when a client wants to join the game. This to avoid connection losses because of big maps (200+ trains). (with tnx to #openttdcoop for the ideas and testing)
-rw-r--r--console_cmds.c38
-rw-r--r--network.c10
-rw-r--r--network.h3
-rw-r--r--network_server.c41
-rw-r--r--settings.c2
5 files changed, 88 insertions, 6 deletions
diff --git a/console_cmds.c b/console_cmds.c
index 809808c3a..88b7bb3c2 100644
--- a/console_cmds.c
+++ b/console_cmds.c
@@ -436,6 +436,9 @@ DEF_CONSOLE_CMD(ConStatus)
case STATUS_AUTH:
status = "authorized";
break;
+ case STATUS_MAP_WAIT:
+ status = "waiting";
+ break;
case STATUS_MAP:
status = "loading map";
break;
@@ -1061,6 +1064,20 @@ DEF_CONSOLE_CMD(ConSet) {
return NULL;
}
+ // setting max-join-time
+ if (strcmp(argv[1],"max_join_time") == 0) {
+ if (argc == 3 && atoi(argv[2]) != 0) {
+ _network_max_join_time = atoi(argv[2]);
+ IConsolePrintF(_iconsole_color_warning, "Max-join-time changed to '%d'", _network_max_join_time);
+ IConsolePrintF(_iconsole_color_warning, "Changes will take effect immediatly.");
+ } else {
+ IConsolePrintF(_iconsole_color_default, "Current max-join-time is '%d'", _network_max_join_time);
+ IConsolePrint(_iconsole_color_warning, "Usage: set max_join_time <ticks> (default = 500).");
+ }
+ return NULL;
+ }
+
+
// setting the server advertising on/off
if (strcmp(argv[1],"server_advertise") == 0) {
if (!_network_server) {
@@ -1082,6 +1099,25 @@ DEF_CONSOLE_CMD(ConSet) {
return NULL;
}
+ // setting the server 'pause on client join' on/off
+ if (strcmp(argv[1],"pause_on_join") == 0) {
+ if (!_network_server) {
+ IConsolePrintF(_iconsole_color_error, "You are not the server");
+ return NULL;
+ }
+ if (argc == 3) {
+ if (strcmp(argv[2], "on") == 0 || atoi(argv[2]) == 1)
+ _network_pause_on_join = true;
+ else
+ _network_pause_on_join = false;
+ IConsolePrintF(_iconsole_color_warning, "Pause-on-join changed to '%s'", (_network_pause_on_join)?"on":"off");
+ } else {
+ IConsolePrintF(_iconsole_color_default, "Current pause-on-join is '%s'", (_network_pause_on_join)?"on":"off");
+ IConsolePrint(_iconsole_color_warning, "Usage: set pause_on_join on/off.");
+ }
+ return NULL;
+ }
+
// setting the server autoclean on/off
if (strcmp(argv[1],"autoclean_companies") == 0) {
if (!_network_server) {
@@ -1175,7 +1211,9 @@ DEF_CONSOLE_CMD(ConSet) {
IConsolePrint(_iconsole_color_error, " - autoclean_protected <months>");
IConsolePrint(_iconsole_color_error, " - autoclean_unprotected <months>");
IConsolePrint(_iconsole_color_error, " - company_pw \"<password>\"");
+ IConsolePrint(_iconsole_color_error, " - max_join_time <frames>");
IConsolePrint(_iconsole_color_error, " - name \"<playername>\"");
+ IConsolePrint(_iconsole_color_error, " - pause_on_join on/off");
IConsolePrint(_iconsole_color_error, " - rcon_pw \"<password>\"");
IConsolePrint(_iconsole_color_error, " - server_name \"<name>\"");
IConsolePrint(_iconsole_color_error, " - server_advertise on/off");
diff --git a/network.c b/network.c
index 69633b693..9e9b92fa6 100644
--- a/network.c
+++ b/network.c
@@ -4,6 +4,7 @@
#include "strings.h"
#include "map.h"
#include "network_data.h"
+#include "command.h"
#if defined(WITH_REV)
extern const char _openttd_revision[];
@@ -466,6 +467,9 @@ static NetworkClientState *NetworkAllocClient(SOCKET s)
cs->last_frame = 0;
cs->quited = false;
+ cs->last_frame = _frame_counter;
+ cs->last_frame_server = _frame_counter;
+
if (_network_server) {
ci = DEREF_CLIENT_INFO(cs);
memset(ci, 0, sizeof(*ci));
@@ -511,6 +515,12 @@ void NetworkCloseClient(NetworkClientState *cs)
SEND_COMMAND(PACKET_SERVER_ERROR_QUIT)(new_cs, cs->index, errorno);
}
}
+
+ /* When the client was PRE_ACTIVE, the server was in pause mode, so unpause */
+ if (cs->status == STATUS_PRE_ACTIVE && _network_pause_on_join) {
+ DoCommandP(0, 0, 0, NULL, CMD_PAUSE);
+ NetworkServer_HandleChat(NETWORK_ACTION_CHAT, DESTTYPE_BROADCAST, 0, "Game unpaused", NETWORK_SERVER_INDEX);
+ }
}
closesocket(cs->socket);
diff --git a/network.h b/network.h
index 322bec066..6da06d798 100644
--- a/network.h
+++ b/network.h
@@ -161,6 +161,9 @@ VARDEF char _network_server_name[NETWORK_NAME_LENGTH];
VARDEF char _network_server_password[NETWORK_PASSWORD_LENGTH];
VARDEF char _network_rcon_password[NETWORK_PASSWORD_LENGTH];
+VARDEF uint16 _network_max_join_time; //! Time a client can max take to join
+VARDEF bool _network_pause_on_join; //! Pause the game when a client tries to join (more chance of succeeding join)
+
VARDEF uint16 _redirect_console_to_client;
VARDEF uint16 _network_sync_freq;
diff --git a/network_server.c b/network_server.c
index 1d5393d41..cc01c7dc5 100644
--- a/network_server.c
+++ b/network_server.c
@@ -304,6 +304,9 @@ DEF_SERVER_SEND_COMMAND(PACKET_SERVER_MAP)
sent_packets = 4; // We start with trying 4 packets
cs->status = STATUS_MAP;
+ /* Mark the start of download */
+ cs->last_frame = _frame_counter;
+ cs->last_frame_server = _frame_counter;
}
if (cs->status == STATUS_MAP) {
@@ -759,6 +762,13 @@ DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_MAP_OK)
SEND_COMMAND(PACKET_SERVER_JOIN)(new_cs, cs->index);
}
}
+
+ if (_network_pause_on_join) {
+ /* Now pause the game till the client is in sync */
+ DoCommandP(0, 1, 0, NULL, CMD_PAUSE);
+
+ NetworkServer_HandleChat(NETWORK_ACTION_CHAT, DESTTYPE_BROADCAST, 0, "Game paused (incoming client)", NETWORK_SERVER_INDEX);
+ }
} else {
// Wrong status for this packet, give a warning to client, and close connection
SEND_COMMAND(PACKET_SERVER_ERROR)(cs, NETWORK_ERROR_NOT_EXPECTED);
@@ -937,14 +947,27 @@ DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_QUIT)
DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_ACK)
{
+ uint32 frame = NetworkRecv_uint32(cs, p);
+
+ /* The client is trying to catch up with the server */
+ if (cs->status == STATUS_PRE_ACTIVE) {
+ /* The client is not yet catched up? */
+ if (frame + DAY_TICKS < _frame_counter)
+ return;
+
+ /* Now he is! Unpause the game */
+ cs->status = STATUS_ACTIVE;
+
+ if (_network_pause_on_join) {
+ DoCommandP(0, 0, 0, NULL, CMD_PAUSE);
+ NetworkServer_HandleChat(NETWORK_ACTION_CHAT, DESTTYPE_BROADCAST, 0, "Game unpaused", NETWORK_SERVER_INDEX);
+ }
+ }
+
// The client received the frame, make note of it
- cs->last_frame = NetworkRecv_uint32(cs, p);
+ cs->last_frame = frame;
// With those 2 values we can calculate the lag realtime
cs->last_frame_server = _frame_counter;
-
- // The client is now really active
- if (cs->status == STATUS_PRE_ACTIVE)
- cs->status = STATUS_ACTIVE;
}
@@ -1527,6 +1550,12 @@ void NetworkServer_Tick(void)
} else {
cs->lag_test = 0;
}
+ } else if (cs->status == STATUS_PRE_ACTIVE) {
+ int lag = NetworkCalculateLag(cs);
+ if (lag > _network_max_join_time) {
+ IConsolePrintF(_iconsole_color_error,"Client #%d is dropped because it took longer than %d ticks for him to join", cs->index, _network_max_join_time);
+ NetworkCloseClient(cs);
+ }
}
@@ -1536,7 +1565,7 @@ void NetworkServer_Tick(void)
}
// Do we need to send the new frame-packet?
- if (send_frame && cs->status == STATUS_ACTIVE) {
+ if (send_frame && (cs->status == STATUS_ACTIVE || cs->status == STATUS_PRE_ACTIVE)) {
SEND_COMMAND(PACKET_SERVER_FRAME)(cs);
}
#ifndef ENABLE_NETWORK_SYNC_EVERY_FRAME
diff --git a/settings.c b/settings.c
index fbc37713d..11b7b2f21 100644
--- a/settings.c
+++ b/settings.c
@@ -760,6 +760,8 @@ static const SettingDesc misc_settings[] = {
static const SettingDesc network_settings[] = {
{"sync_freq", SDT_UINT16 | SDT_NOSAVE, (void*)100, &_network_sync_freq, NULL},
{"frame_freq", SDT_UINT8 | SDT_NOSAVE, (void*)0, &_network_frame_freq, NULL},
+ {"max_join_time", SDT_UINT, (void*)500, &_network_max_join_time, NULL},
+ {"pause_on_join", SDT_BOOL, (void*)false, &_network_pause_on_join, NULL},
{"server_bind_ip", SDT_STRINGBUF | (lengthof(_network_server_bind_ip_host) << 16), "0.0.0.0", &_network_server_bind_ip_host, NULL},
{"server_port", SDT_UINT, (void*)NETWORK_DEFAULT_PORT, &_network_server_port, NULL},
{"server_advertise",SDT_BOOL, (void*)false, &_network_advertise, NULL},