Commit | Line | Data |
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460b9539 | 1 | /* |
2 | * This file is part of DisOrder. | |
5aff007d | 3 | * Copyright (C) 2004, 2005, 2007, 2008 Richard Kettlewell |
460b9539 | 4 | * |
e7eb3a27 | 5 | * This program is free software: you can redistribute it and/or modify |
460b9539 | 6 | * it under the terms of the GNU General Public License as published by |
e7eb3a27 | 7 | * the Free Software Foundation, either version 3 of the License, or |
460b9539 | 8 | * (at your option) any later version. |
9 | * | |
e7eb3a27 RK |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
460b9539 | 15 | * You should have received a copy of the GNU General Public License |
e7eb3a27 | 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
460b9539 | 17 | */ |
132a5a4a RK |
18 | /** @file server/state.c |
19 | * @brief Global server state | |
20 | */ | |
05b75f8d | 21 | #include "disorder-server.h" |
460b9539 | 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) { | |
4363757e | 30 | info("shutting down..."); |
460b9539 | 31 | quitting(ev); |
32 | trackdb_close(); | |
33 | trackdb_deinit(); | |
4363757e | 34 | info("exiting"); |
445a0f66 | 35 | exit(0); |
460b9539 | 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 = { | |
66613034 RK |
45 | .ai_flags = AI_PASSIVE, |
46 | .ai_family = PF_INET, | |
47 | .ai_socktype = SOCK_STREAM, | |
48 | .ai_protocol = IPPROTO_TCP, | |
460b9539 | 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(); | |
c00fce3a | 118 | if(config_read(1)) |
460b9539 | 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 | } | |
d25c4615 RK |
125 | trackdb_open(TRACKDB_NO_UPGRADE); |
126 | } else | |
127 | /* We only allow for upgrade at startup */ | |
128 | trackdb_open(TRACKDB_CAN_UPGRADE); | |
460b9539 | 129 | if(need_another_rescan) |
dd9af5cb | 130 | trackdb_rescan(ev, 1/*check*/, 0, 0); |
fdca70ee RK |
131 | /* Arrange timeouts for schedule actions */ |
132 | schedule_init(ev); | |
460b9539 | 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 | */ |