Catalli's threaded switch

[sliver-openvswitch.git] / vswitchd / ovs-vswitchd.c

diff --git a/vswitchd/ovs-vswitchd.c b/vswitchd/ovs-vswitchd.c
index 1d1fa29..9ed2404 100644 (file)
--- a/vswitchd/ovs-vswitchd.c
+++ b/vswitchd/ovs-vswitchd.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2008, 2009 Nicira Networks
+/* Copyright (c) 2008, 2009, 2010 Nicira Networks
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,13 +22,15 @@
 #include <signal.h>
 #include <stdlib.h>
 #include <string.h>
+#ifdef HAVE_MLOCKALL
+#include <sys/mman.h>
+#endif
 
 #include "bridge.h"
 #include "command-line.h"
 #include "compiler.h"
 #include "daemon.h"
 #include "dpif.h"
-#include "fault.h"
 #include "leak-checker.h"
 #include "netdev.h"
 #include "ovsdb-idl.h"
@@ -43,10 +45,12 @@
 #include "unixctl.h"
 #include "util.h"
 #include "vconn.h"
+#include "vlog.h"
 #include "vswitchd/vswitch-idl.h"
 
-#include "vlog.h"
-#define THIS_MODULE VLM_vswitchd
+VLOG_DEFINE_THIS_MODULE(vswitchd)
+
+static unixctl_cb_func ovs_vswitchd_exit;
 
 static const char *parse_options(int argc, char *argv[]);
 static void usage(void) NO_RETURN;
@@ -56,74 +60,48 @@ main(int argc, char *argv[])
 {
     struct unixctl_server *unixctl;
     struct signal *sighup;
-    struct ovsdb_idl *idl;
     const char *remote;
-    bool need_reconfigure;
-    bool inited;
-    unsigned int idl_seqno;
+    bool exiting;
     int retval;
 
+    proctitle_init(argc, argv);
     set_program_name(argv[0]);
-    register_fault_handlers();
-    time_init();
-    vlog_init();
     remote = parse_options(argc, argv);
     signal(SIGPIPE, SIG_IGN);
     sighup = signal_register(SIGHUP);
     process_init();
+    ovsrec_init();
 
     die_if_already_running();
     daemonize_start();
 
     retval = unixctl_server_create(NULL, &unixctl);
     if (retval) {
-        ovs_fatal(retval, "could not listen for control connections");
+        exit(EXIT_FAILURE);
     }
+    unixctl_command_register("exit", ovs_vswitchd_exit, &exiting);
 
     daemonize_complete();
 
-    idl = ovsdb_idl_create(remote, &ovsrec_idl_class);
-    idl_seqno = ovsdb_idl_get_seqno(idl);
-
-    need_reconfigure = false;
-    inited = false;
-    for (;;) {
+    bridge_init(remote);
+    exiting = false;
+    while (!exiting) {
         if (signal_poll(sighup)) {
             vlog_reopen_log_file();
         }
-        if (inited && bridge_run()) {
-            need_reconfigure = true;
-        }
-        ovsdb_idl_run(idl);
-        if (idl_seqno != ovsdb_idl_get_seqno(idl)) {
-            idl_seqno = ovsdb_idl_get_seqno(idl);
-            need_reconfigure = true;
-        }
-        if (need_reconfigure) {
-            const struct ovsrec_open_vswitch *cfg;
-
-            need_reconfigure = false;
-            cfg = ovsrec_open_vswitch_first(idl);
-            if (cfg) {
-                if (inited) {
-                    bridge_reconfigure(cfg);
-                } else {
-                    bridge_init(cfg);
-                    inited = true;
-                }
-            }
-        }
+        bridge_run();
         unixctl_server_run(unixctl);
+#ifndef THREADED
         dp_run();
+#endif
         netdev_run();
 
         signal_wait(sighup);
-        if (inited) {
-            bridge_wait();
-        }
-        ovsdb_idl_wait(idl);
+        bridge_wait();
         unixctl_server_wait(unixctl);
+#ifndef THREADED
         dp_wait();
+#endif
         netdev_wait();
         poll_block();
     }
@@ -136,13 +114,16 @@ parse_options(int argc, char *argv[])
 {
     enum {
         OPT_PEER_CA_CERT = UCHAR_MAX + 1,
+        OPT_MLOCKALL,
         OPT_FAKE_PROC_NET,
         VLOG_OPTION_ENUMS,
-        LEAK_CHECKER_OPTION_ENUMS
+        LEAK_CHECKER_OPTION_ENUMS,
+        OPT_BOOTSTRAP_CA_CERT
     };
     static struct option long_options[] = {
         {"help",        no_argument, 0, 'h'},
         {"version",     no_argument, 0, 'V'},
+        {"mlockall",    no_argument, 0, OPT_MLOCKALL},
         {"fake-proc-net", no_argument, 0, OPT_FAKE_PROC_NET},
         DAEMON_LONG_OPTIONS,
         VLOG_LONG_OPTIONS,
@@ -150,6 +131,7 @@ parse_options(int argc, char *argv[])
 #ifdef HAVE_OPENSSL
         STREAM_SSL_LONG_OPTIONS
         {"peer-ca-cert", required_argument, 0, OPT_PEER_CA_CERT},
+        {"bootstrap-ca-cert", required_argument, 0, OPT_BOOTSTRAP_CA_CERT},
 #endif
         {0, 0, 0, 0},
     };
@@ -173,6 +155,16 @@ parse_options(int argc, char *argv[])
             OVS_PRINT_VERSION(OFP_VERSION, OFP_VERSION);
             exit(EXIT_SUCCESS);
 
+        case OPT_MLOCKALL:
+#ifdef HAVE_MLOCKALL
+            if (mlockall(MCL_CURRENT | MCL_FUTURE)) {
+                VLOG_ERR("mlockall failed: %s", strerror(errno));
+            }
+#else
+            VLOG_ERR("mlockall not supported on this system");
+#endif
+            break;
+
         case OPT_FAKE_PROC_NET:
             error = proc_net_compat_init();
             if (error) {
@@ -191,6 +183,10 @@ parse_options(int argc, char *argv[])
         case OPT_PEER_CA_CERT:
             stream_ssl_set_peer_ca_cert_file(optarg);
             break;
+
+        case OPT_BOOTSTRAP_CA_CERT:
+            stream_ssl_set_ca_cert_file(optarg, true);
+            break;
 #endif
 
         case '?':
@@ -231,3 +227,12 @@ usage(void)
     leak_checker_usage();
     exit(EXIT_SUCCESS);
 }
+
+static void
+ovs_vswitchd_exit(struct unixctl_conn *conn, const char *args OVS_UNUSED,
+                  void *exiting_)
+{
+    bool *exiting = exiting_;
+    *exiting = true;
+    unixctl_command_reply(conn, 200, NULL);
+}