int
main(int argc, char *argv[])
{
int i, oldumask;
argcGlobal = argc;
argvGlobal = argv;
configfilename = NULL;
/* init stuff */
ProcessCmdLine(argc, argv);
/*
* Do this first thing, to get any options that only take effect at
* startup time. It is read again each time the server resets.
*/
if (ReadConfigFile(configfilename) != FSSuccess) {
FatalError("couldn't read config file\n");
}
InitErrors();
/* make sure at least world write access is disabled */
if (((oldumask = umask(022)) & 002) == 002)
(void)umask(oldumask);
SetDaemonState();
SetUserId();
while (1) {
serverGeneration++;
OsInit();
if (serverGeneration == 1) {
/* do first time init */
CreateSockets(OldListenCount, OldListen);
InitProcVectors();
clients = (ClientPtr *) fsalloc(MAXCLIENTS * sizeof(ClientPtr));
if (!clients)
FatalError("couldn't create client array\n");
for (i = MINCLIENT; i < MAXCLIENTS; i++)
clients[i] = NullClient;
/* make serverClient */
serverClient = (ClientPtr) fsalloc(sizeof(ClientRec));
if (!serverClient)
FatalError("couldn't create server client\n");
}
ResetSockets();
/* init per-cycle stuff */
InitClient(serverClient, SERVER_CLIENT, (pointer) 0);
clients[SERVER_CLIENT] = serverClient;
currentMaxClients = MINCLIENT;
currentClient = serverClient;
if (!InitClientResources(serverClient))
FatalError("couldn't init server resources\n");
InitAtoms();
InitFonts();
SetConfigValues();
if (!create_connection_block())
FatalError("couldn't create connection block\n");
#ifdef DEBUG
fprintf(stderr, "Entering Dispatch loop\n");
#endif
Dispatch();
#ifdef DEBUG
fprintf(stderr, "Leaving Dispatch loop\n");
#endif
/* clean up per-cycle stuff */
if ((dispatchException & DE_TERMINATE) || drone_server)
break;
fsfree(ConnectionInfo);
/* note that we're parsing it again, for each time the server resets */
if (ReadConfigFile(configfilename) != FSSuccess)
FatalError("couldn't read config file\n");
}
CloseSockets();
CloseErrors();
exit(0);
}
Dispatch()
{
int nready,
result;
int *clientReady;
ClientPtr client;
int op;
nextFreeClientID = MINCLIENT;
nClients = 0;
clientReady = (int *) ALLOCATE_LOCAL(sizeof(int) * MaxClients);
if (!clientReady)
return;
while (1) {
/* wait for something */
nready = WaitForSomething(clientReady);
while (!dispatchException && (--nready >= 0)) {
client = currentClient = clients[clientReady[nready]];
/* Client can be NULL if CloseDownClient() is called during
this dispatchException loop. */
if (client == (ClientPtr)NULL) continue;
isItTimeToYield = FALSE;
while (!isItTimeToYield) {
result = ReadRequest(client);
if (result <= 0) {
if (result < 0)
CloseDownClient(client);
break;
}
client->sequence++;
if (result > (MAX_REQUEST_SIZE << 2))
result = FSBadLength;
else
{
op = MAJOROP;
if (op >= NUM_PROC_VECTORS)
result = ProcBadRequest (client);
else
result = (*client->requestVector[op]) (client);
}
if (result != FSSuccess) {
if (client->noClientException != FSSuccess)
CloseDownClient(client);
break;
}
}
FlushAllOutput ();
}
/* reset if server is a drone and has run out of clients */
if (drone_server && nClients == 0) {
dispatchException |= DE_RESET;
}
if (dispatchException) {
/* re-read the config file */
if (dispatchException & DE_RECONFIG) {
NoticeF("Re-reading config file\n");
if (ReadConfigFile(configfilename) != FSSuccess)
ErrorF("couldn't parse config file\n");
SetConfigValues();
dispatchException &= ~DE_RECONFIG;
}
/* flush all the caches */
if (dispatchException & DE_FLUSH) {
NoticeF("flushing all caches\n");
CacheReset();
dispatchException &= ~DE_FLUSH;
}
/* reset */
if (dispatchException & DE_RESET) {
NoticeF("resetting\n");
break;
}
/* die *now* */
if (dispatchException & DE_TERMINATE) {
NoticeF("terminating\n");
kill_all_clients();
exit(0);
break;
}
}
}
kill_all_clients();
dispatchException = 0;
}