Commit | Line | Data |
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460b9539 | 1 | /* |
2 | * This file is part of DisOrder. | |
b50cfb8a | 3 | * Copyright (C) 2004, 2005, 2007-2009 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 | ||
80dc2c5f RK |
26 | /** @brief TCP listener definition */ |
27 | struct listener { | |
28 | struct listener *next; | |
29 | struct sockaddr *sa; | |
30 | int fd; | |
31 | }; | |
32 | ||
33 | /** @brief Current listeners */ | |
34 | static struct listener *listeners; | |
460b9539 | 35 | |
b50cfb8a RK |
36 | /** @brief Current audio API */ |
37 | const struct uaudio *api; | |
38 | ||
460b9539 | 39 | void quit(ev_source *ev) { |
4363757e | 40 | info("shutting down..."); |
460b9539 | 41 | quitting(ev); |
42 | trackdb_close(); | |
43 | trackdb_deinit(); | |
4363757e | 44 | info("exiting"); |
445a0f66 | 45 | exit(0); |
460b9539 | 46 | } |
47 | ||
80dc2c5f RK |
48 | static struct sockaddr *copy_sockaddr(const struct addrinfo *addr) { |
49 | struct sockaddr *sa = xmalloc_noptr(addr->ai_addrlen); | |
50 | memcpy(sa, addr->ai_addr, addr->ai_addrlen); | |
51 | return sa; | |
52 | } | |
53 | ||
460b9539 | 54 | static void reset_socket(ev_source *ev) { |
55 | const char *new_unix; | |
80dc2c5f RK |
56 | struct addrinfo *res, *r; |
57 | struct listener *l, **ll; | |
460b9539 | 58 | struct sockaddr_un sun; |
460b9539 | 59 | |
60 | /* unix first */ | |
61 | new_unix = config_get_file("socket"); | |
62 | if(!current_unix || strcmp(current_unix, new_unix)) { | |
63 | /* either there was no socket, or there was but a different path */ | |
64 | if(current_unix) { | |
65 | /* stop the old one and remove it from the filesystem */ | |
66 | server_stop(ev, current_unix_fd); | |
67 | if(unlink(current_unix) < 0) | |
68 | fatal(errno, "unlink %s", current_unix); | |
69 | } | |
70 | /* start the new one */ | |
71 | if(strlen(new_unix) >= sizeof sun.sun_path) | |
72 | fatal(0, "socket path %s is too long", new_unix); | |
73 | memset(&sun, 0, sizeof sun); | |
74 | sun.sun_family = AF_UNIX; | |
75 | strcpy(sun.sun_path, new_unix); | |
76 | if(unlink(new_unix) < 0 && errno != ENOENT) | |
77 | fatal(errno, "unlink %s", new_unix); | |
78 | if((current_unix_fd = server_start(ev, PF_UNIX, sizeof sun, | |
79 | (const struct sockaddr *)&sun, | |
80 | new_unix)) >= 0) { | |
81 | current_unix = new_unix; | |
82 | if(chmod(new_unix, 0777) < 0) | |
83 | fatal(errno, "error calling chmod %s", new_unix); | |
84 | } else | |
85 | current_unix = 0; | |
86 | } | |
87 | ||
88 | /* get the new listen config */ | |
80dc2c5f RK |
89 | if(config->listen.af != -1) |
90 | res = netaddress_resolve(&config->listen, 1, IPPROTO_TCP); | |
460b9539 | 91 | else |
92 | res = 0; | |
93 | ||
80dc2c5f RK |
94 | /* Close any current listeners that aren't required any more */ |
95 | ll = &listeners; | |
96 | while((l = *ll)) { | |
97 | for(r = res; r; r = r->ai_next) | |
98 | if(!sockaddrcmp(r->ai_addr, l->sa)) | |
99 | break; | |
100 | if(!r) { | |
101 | /* Didn't find a match, remove this one */ | |
102 | server_stop(ev, l->fd); | |
103 | *ll = l->next; | |
104 | } else { | |
105 | /* This address is still wanted */ | |
106 | ll = &l->next; | |
460b9539 | 107 | } |
80dc2c5f RK |
108 | } |
109 | ||
110 | /* Open any new listeners that are required */ | |
111 | for(r = res; r; r = r->ai_next) { | |
112 | for(l = listeners; l; l = l->next) | |
113 | if(!sockaddrcmp(r->ai_addr, l->sa)) | |
114 | break; | |
115 | if(!l) { | |
116 | /* Didn't find a match, need a new listener */ | |
117 | int fd = server_start(ev, r->ai_family, r->ai_addrlen, r->ai_addr, | |
118 | format_sockaddr(r->ai_addr)); | |
119 | if(fd >= 0) { | |
120 | l = xmalloc(sizeof *l); | |
121 | l->next = listeners; | |
122 | l->sa = copy_sockaddr(r); | |
123 | l->fd = fd; | |
124 | listeners = l; | |
460b9539 | 125 | } |
126 | } | |
127 | } | |
128 | /* if res is still set it needs freeing */ | |
129 | if(res) | |
130 | freeaddrinfo(res); | |
131 | } | |
132 | ||
133 | int reconfigure(ev_source *ev, int reload) { | |
134 | int need_another_rescan = 0; | |
135 | int ret = 0; | |
136 | ||
137 | D(("reconfigure(%d)", reload)); | |
b50cfb8a RK |
138 | if(api) { |
139 | if(api->close_mixer) | |
140 | api->close_mixer(); | |
141 | api = NULL; | |
142 | } | |
460b9539 | 143 | if(reload) { |
144 | need_another_rescan = trackdb_rescan_cancel(); | |
145 | trackdb_close(); | |
c00fce3a | 146 | if(config_read(1)) |
460b9539 | 147 | ret = -1; |
148 | else { | |
149 | /* Tell the speaker it needs to reload its config too. */ | |
150 | speaker_reload(); | |
151 | info("%s: installed new configuration", configfile); | |
152 | } | |
d25c4615 RK |
153 | trackdb_open(TRACKDB_NO_UPGRADE); |
154 | } else | |
155 | /* We only allow for upgrade at startup */ | |
156 | trackdb_open(TRACKDB_CAN_UPGRADE); | |
b50cfb8a | 157 | api = uaudio_find(config->api); |
ba70caca RK |
158 | if(api->configure) |
159 | api->configure(); | |
b50cfb8a RK |
160 | if(api->open_mixer) |
161 | api->open_mixer(); | |
460b9539 | 162 | if(need_another_rescan) |
dd9af5cb | 163 | trackdb_rescan(ev, 1/*check*/, 0, 0); |
fdca70ee RK |
164 | /* Arrange timeouts for schedule actions */ |
165 | schedule_init(ev); | |
460b9539 | 166 | if(!ret) { |
167 | queue_read(); | |
168 | recent_read(); | |
169 | reset_socket(ev); | |
170 | } | |
171 | return ret; | |
172 | } | |
173 | ||
174 | /* | |
175 | Local Variables: | |
176 | c-basic-offset:2 | |
177 | comment-column:40 | |
178 | End: | |
179 | */ |