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Refresh master server address cache every 24 hours

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Resolve master server addresses every 24 hours instead of keeping
result forever. Don't clear sv_master[1-5] cvar if the address fails
to resolve; it might work later.
This commit is contained in:
Zack Middleton 2017-05-30 17:57:49 -05:00
parent 8a50e2aa09
commit 973e0a7e9c
2 changed files with 13 additions and 15 deletions
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6
code/server/server.h
View file

@ -241,8 +241,10 @@ typedef struct {
int nextHeartbeatTime;
challenge_t challenges[MAX_CHALLENGES]; // to prevent invalid IPs from connecting
netadr_t redirectAddress; // for rcon return messages
netadr_t authorizeAddress; // for rcon return messages
#ifndef STANDALONE
netadr_t authorizeAddress; // authorize server address
#endif
int masterResolveTime[MAX_MASTER_SERVERS]; // next svs.time that server should do dns lookup for master server
} serverStatic_t;
#define SERVER_MAXBANS 1024

22
code/server/sv_main.c
View file

@ -236,6 +236,7 @@ but not on every player enter or exit.
================
*/
#define HEARTBEAT_MSEC 300*1000
#define MASTERDNS_MSEC 24*60*60*1000
void SV_MasterHeartbeat(const char *message)
{
static netadr_t adr[MAX_MASTER_SERVERS][2]; // [2] for v4 and v6 address for the same address string.
@ -264,12 +265,12 @@ void SV_MasterHeartbeat(const char *message)
if(!sv_master[i]->string[0])
continue;
// see if we haven't already resolved the name
// resolving usually causes hitches on win95, so only
// do it when needed
if(sv_master[i]->modified || (adr[i][0].type == NA_BAD && adr[i][1].type == NA_BAD))
// see if we haven't already resolved the name or if it's been over 24 hours
// resolving usually causes hitches on win95, so only do it when needed
if (sv_master[i]->modified || svs.time > svs.masterResolveTime[i])
{
sv_master[i]->modified = qfalse;
svs.masterResolveTime[i] = svs.time + MASTERDNS_MSEC;
if(netenabled & NET_ENABLEV4)
{
@ -304,16 +305,11 @@ void SV_MasterHeartbeat(const char *message)
else
Com_Printf( "%s has no IPv6 address.\n", sv_master[i]->string);
}
}
if(adr[i][0].type == NA_BAD && adr[i][1].type == NA_BAD)
{
// if the address failed to resolve, clear it
// so we don't take repeated dns hits
Com_Printf("Couldn't resolve address: %s\n", sv_master[i]->string);
Cvar_Set(sv_master[i]->name, "");
sv_master[i]->modified = qfalse;
continue;
}
if(adr[i][0].type == NA_BAD && adr[i][1].type == NA_BAD)
{
continue;
}