X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/ffac51d73ab97c4c9c1e6c43b18d54d716000bf6..64c12487df48a8b90f663fefda6b82980fd3a059:/server/state.c

diff --git a/server/state.c b/server/state.c
index 16fc1a3..9a93dc9 100644
--- a/server/state.c
+++ b/server/state.c
@@ -1,82 +1,61 @@
 /*
  * This file is part of DisOrder.
- * Copyright (C) 2004, 2005 Richard Kettlewell
+ * Copyright (C) 2004, 2005, 2007-2009 Richard Kettlewell
  *
- * This program is free software; you can redistribute it and/or modify
+ * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
-#include <config.h>
-
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <locale.h>
-#include <stdio.h>
-#include <pcre.h>
-#include <netdb.h>
-#include <sys/un.h>
-#include <netinet/in.h>
-
-#include "event.h"
-#include "play.h"
-#include "rights.h"
-#include "trackdb.h"
-#include "state.h"
-#include "configuration.h"
-#include "log.h"
-#include "queue.h"
-#include "server-queue.h"
-#include "server.h"
-#include "printf.h"
-#include "addr.h"
+/** @file server/state.c
+ * @brief Global server state
+ */
+#include "disorder-server.h"
 
 static const char *current_unix;
 static int current_unix_fd;
 
-static struct addrinfo *current_listen_addrinfo;
-static int current_listen_fd;
+/** @brief TCP listener definition */
+struct listener {
+  struct listener *next;
+  struct sockaddr *sa;
+  int fd;
+};
+
+/** @brief Current listeners */
+static struct listener *listeners;
+
+/** @brief Current audio API */
+const struct uaudio *api;
 
 void quit(ev_source *ev) {
+  info("shutting down...");
   quitting(ev);
   trackdb_close();
   trackdb_deinit();
-  info("terminating");
+  info("exiting");
   exit(0);
 }
 
+static struct sockaddr *copy_sockaddr(const struct addrinfo *addr) {
+  struct sockaddr *sa = xmalloc_noptr(addr->ai_addrlen);
+  memcpy(sa, addr->ai_addr, addr->ai_addrlen);
+  return sa;
+}
+
 static void reset_socket(ev_source *ev) {
   const char *new_unix;
-  struct addrinfo *res;
+  struct addrinfo *res, *r;
+  struct listener *l, **ll;
   struct sockaddr_un sun;
-  char *name;
-  
-  static const struct addrinfo pref = {
-    AI_PASSIVE,
-    PF_INET,
-    SOCK_STREAM,
-    IPPROTO_TCP,
-    0,
-    0,
-    0,
-    0
-  };
 
   /* unix first */
   new_unix = config_get_file("socket");
@@ -107,28 +86,42 @@ static void reset_socket(ev_source *ev) {
   }
 
   /* get the new listen config */
-  if(config->listen.n)
-    res = get_address(&config->listen, &pref, &name);
+  if(config->listen.af != -1)
+    res = netaddress_resolve(&config->listen, 1, IPPROTO_TCP);
   else
     res = 0;
 
-  if((res && !current_listen_addrinfo)
-     || (current_listen_addrinfo
-	 && (!res
-	     || addrinfocmp(res, current_listen_addrinfo)))) {
-    /* something has to change */
-    if(current_listen_addrinfo) {
-      /* delete the old listener */
-      server_stop(ev, current_listen_fd);
-      freeaddrinfo(current_listen_addrinfo);
-      current_listen_addrinfo = 0;
+  /* Close any current listeners that aren't required any more */
+  ll = &listeners;
+  while((l = *ll)) {
+    for(r = res; r; r = r->ai_next)
+      if(!sockaddrcmp(r->ai_addr, l->sa))
+	break;
+    if(!r) {
+      /* Didn't find a match, remove this one */
+      server_stop(ev, l->fd);
+      *ll = l->next;
+    } else {
+      /* This address is still wanted */
+      ll = &l->next;
     }
-    if(res) {
-      /* start the new listener */
-      if((current_listen_fd = server_start(ev, res->ai_family, res->ai_addrlen,
-					   res->ai_addr, name)) >= 0) {
-	current_listen_addrinfo = res;
-	res = 0;
+  }
+
+  /* Open any new listeners that are required */
+  for(r = res; r; r = r->ai_next) {
+    for(l = listeners; l; l = l->next)
+      if(!sockaddrcmp(r->ai_addr, l->sa))
+	break;
+    if(!l) {
+      /* Didn't find a match, need a new listener */
+      int fd = server_start(ev, r->ai_family, r->ai_addrlen, r->ai_addr,
+			    format_sockaddr(r->ai_addr));
+      if(fd >= 0) {
+	l = xmalloc(sizeof *l);
+	l->next = listeners;
+	l->sa = copy_sockaddr(r);
+	l->fd = fd;
+	listeners = l;
       }
     }
   }
@@ -142,6 +135,11 @@ int reconfigure(ev_source *ev, int reload) {
   int ret = 0;
 
   D(("reconfigure(%d)", reload));
+  if(api) {
+    if(api->close_mixer)
+      api->close_mixer();
+    api = NULL;
+  }
   if(reload) {
     need_another_rescan = trackdb_rescan_cancel();
     trackdb_close();
@@ -156,8 +154,15 @@ int reconfigure(ev_source *ev, int reload) {
   } else
     /* We only allow for upgrade at startup */
     trackdb_open(TRACKDB_CAN_UPGRADE);
+  api = uaudio_find(config->api);
+  if(api->configure)
+    api->configure();
+  if(api->open_mixer)
+    api->open_mixer();
   if(need_another_rescan)
-    trackdb_rescan(ev, 1/*check*/);
+    trackdb_rescan(ev, 1/*check*/, 0, 0);
+  /* Arrange timeouts for schedule actions */
+  schedule_init(ev);
   if(!ret) {
     queue_read();
     recent_read();