| | 1 | /* |
| | 2 | * This file is part of DisOrder. |
| | 3 | * Copyright (C) 2004, 2005, 2007, 2008 Richard Kettlewell |
| | 4 | * |
| | 5 | * This program is free software; you can redistribute it and/or modify |
| | 6 | * it under the terms of the GNU General Public License as published by |
| | 7 | * the Free Software Foundation; either version 2 of the License, or |
| | 8 | * (at your option) any later version. |
| | 9 | * |
| | 10 | * This program is distributed in the hope that it will be useful, but |
| | 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| | 13 | * General Public License for more details. |
| | 14 | * |
| | 15 | * You should have received a copy of the GNU General Public License |
| | 16 | * along with this program; if not, write to the Free Software |
| | 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| | 18 | * USA |
| | 19 | */ |
| | 20 | |
| | 21 | #include "disorder-server.h" |
| | 22 | |
| | 23 | static const char *current_unix; |
| | 24 | static int current_unix_fd; |
| | 25 | |
| | 26 | static struct addrinfo *current_listen_addrinfo; |
| | 27 | static int current_listen_fd; |
| | 28 | |
| | 29 | void quit(ev_source *ev) { |
| | 30 | info("shutting down..."); |
| | 31 | quitting(ev); |
| | 32 | trackdb_close(); |
| | 33 | trackdb_deinit(); |
| | 34 | info("exiting"); |
| | 35 | exit(0); |
| | 36 | } |
| | 37 | |
| | 38 | static void reset_socket(ev_source *ev) { |
| | 39 | const char *new_unix; |
| | 40 | struct addrinfo *res; |
| | 41 | struct sockaddr_un sun; |
| | 42 | char *name; |
| | 43 | |
| | 44 | static const struct addrinfo pref = { |
| | 45 | .ai_flags = AI_PASSIVE, |
| | 46 | .ai_family = PF_INET, |
| | 47 | .ai_socktype = SOCK_STREAM, |
| | 48 | .ai_protocol = IPPROTO_TCP, |
| | 49 | }; |
| | 50 | |
| | 51 | /* unix first */ |
| | 52 | new_unix = config_get_file("socket"); |
| | 53 | if(!current_unix || strcmp(current_unix, new_unix)) { |
| | 54 | /* either there was no socket, or there was but a different path */ |
| | 55 | if(current_unix) { |
| | 56 | /* stop the old one and remove it from the filesystem */ |
| | 57 | server_stop(ev, current_unix_fd); |
| | 58 | if(unlink(current_unix) < 0) |
| | 59 | fatal(errno, "unlink %s", current_unix); |
| | 60 | } |
| | 61 | /* start the new one */ |
| | 62 | if(strlen(new_unix) >= sizeof sun.sun_path) |
| | 63 | fatal(0, "socket path %s is too long", new_unix); |
| | 64 | memset(&sun, 0, sizeof sun); |
| | 65 | sun.sun_family = AF_UNIX; |
| | 66 | strcpy(sun.sun_path, new_unix); |
| | 67 | if(unlink(new_unix) < 0 && errno != ENOENT) |
| | 68 | fatal(errno, "unlink %s", new_unix); |
| | 69 | if((current_unix_fd = server_start(ev, PF_UNIX, sizeof sun, |
| | 70 | (const struct sockaddr *)&sun, |
| | 71 | new_unix)) >= 0) { |
| | 72 | current_unix = new_unix; |
| | 73 | if(chmod(new_unix, 0777) < 0) |
| | 74 | fatal(errno, "error calling chmod %s", new_unix); |
| | 75 | } else |
| | 76 | current_unix = 0; |
| | 77 | } |
| | 78 | |
| | 79 | /* get the new listen config */ |
| | 80 | if(config->listen.n) |
| | 81 | res = get_address(&config->listen, &pref, &name); |
| | 82 | else |
| | 83 | res = 0; |
| | 84 | |
| | 85 | if((res && !current_listen_addrinfo) |
| | 86 | || (current_listen_addrinfo |
| | 87 | && (!res |
| | 88 | || addrinfocmp(res, current_listen_addrinfo)))) { |
| | 89 | /* something has to change */ |
| | 90 | if(current_listen_addrinfo) { |
| | 91 | /* delete the old listener */ |
| | 92 | server_stop(ev, current_listen_fd); |
| | 93 | freeaddrinfo(current_listen_addrinfo); |
| | 94 | current_listen_addrinfo = 0; |
| | 95 | } |
| | 96 | if(res) { |
| | 97 | /* start the new listener */ |
| | 98 | if((current_listen_fd = server_start(ev, res->ai_family, res->ai_addrlen, |
| | 99 | res->ai_addr, name)) >= 0) { |
| | 100 | current_listen_addrinfo = res; |
| | 101 | res = 0; |
| | 102 | } |
| | 103 | } |
| | 104 | } |
| | 105 | /* if res is still set it needs freeing */ |
| | 106 | if(res) |
| | 107 | freeaddrinfo(res); |
| | 108 | } |
| | 109 | |
| | 110 | int reconfigure(ev_source *ev, int reload) { |
| | 111 | int need_another_rescan = 0; |
| | 112 | int ret = 0; |
| | 113 | |
| | 114 | D(("reconfigure(%d)", reload)); |
| | 115 | if(reload) { |
| | 116 | need_another_rescan = trackdb_rescan_cancel(); |
| | 117 | trackdb_close(); |
| | 118 | if(config_read(1)) |
| | 119 | ret = -1; |
| | 120 | else { |
| | 121 | /* Tell the speaker it needs to reload its config too. */ |
| | 122 | speaker_reload(); |
| | 123 | info("%s: installed new configuration", configfile); |
| | 124 | } |
| | 125 | trackdb_open(TRACKDB_NO_UPGRADE); |
| | 126 | } else |
| | 127 | /* We only allow for upgrade at startup */ |
| | 128 | trackdb_open(TRACKDB_CAN_UPGRADE); |
| | 129 | if(need_another_rescan) |
| | 130 | trackdb_rescan(ev, 1/*check*/, 0, 0); |
| | 131 | /* Arrange timeouts for schedule actions */ |
| | 132 | schedule_init(ev); |
| | 133 | if(!ret) { |
| | 134 | queue_read(); |
| | 135 | recent_read(); |
| | 136 | reset_socket(ev); |
| | 137 | } |
| | 138 | return ret; |
| | 139 | } |
| | 140 | |
| | 141 | /* |
| | 142 | Local Variables: |
| | 143 | c-basic-offset:2 |
| | 144 | comment-column:40 |
| | 145 | End: |
| | 146 | */ |
~mdw / disorder / blame_incremental