1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2006 Lennart Poettering
5
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
10
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
18 ***/
19
20 #ifdef HAVE_CONFIG_H
21 #include <config.h>
22 #endif
23
24 #include <sys/types.h>
25 #include <sys/wait.h>
26
27 #include <pulsecore/core-error.h>
28 #include <pulsecore/core-util.h>
29 #include <pulsecore/start-child.h>
30
31 #include "../stdin-util.h"
32
33 PA_MODULE_AUTHOR("Lennart Poettering");
34 PA_MODULE_DESCRIPTION("GConf Adapter");
35 PA_MODULE_VERSION(PACKAGE_VERSION);
36 PA_MODULE_LOAD_ONCE(true);
37
pa__init(pa_module * m)38 int pa__init(pa_module*m) {
39 struct userdata *u;
40 int r;
41
42 u = pa_xnew(struct userdata, 1);
43 u->core = m->core;
44 u->module = m;
45 m->userdata = u;
46 u->module_infos = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) module_info_free);
47 u->pid = (pid_t) -1;
48 u->fd = -1;
49 u->fd_type = 0;
50 u->io_event = NULL;
51 u->buf_fill = 0;
52
53 if ((u->fd = pa_start_child_for_read(
54 #if defined(__linux__) && defined(HAVE_RUNNING_FROM_BUILD_TREE)
55 pa_run_from_build_tree() ? PA_BUILDDIR "/gconf-helper" :
56 #endif
57 PA_GCONF_HELPER, NULL, &u->pid)) < 0)
58 goto fail;
59
60 u->io_event = m->core->mainloop->io_new(
61 m->core->mainloop,
62 u->fd,
63 PA_IO_EVENT_INPUT,
64 io_event_cb,
65 u);
66
67 do {
68 if ((r = handle_event(u)) < 0)
69 goto fail;
70
71 /* Read until the client signalled us that it is ready with
72 * initialization */
73 } while (r != 1);
74
75 return 0;
76
77 fail:
78 pa__done(m);
79 return -1;
80 }
81
pa__done(pa_module * m)82 void pa__done(pa_module*m) {
83 struct userdata *u;
84
85 pa_assert(m);
86
87 if (!(u = m->userdata))
88 return;
89
90 if (u->pid != (pid_t) -1) {
91 kill(u->pid, SIGTERM);
92
93 for (;;) {
94 if (waitpid(u->pid, NULL, 0) >= 0)
95 break;
96
97 if (errno != EINTR) {
98 pa_log("waitpid() failed: %s", pa_cstrerror(errno));
99 break;
100 }
101 }
102 }
103
104 if (u->io_event)
105 m->core->mainloop->io_free(u->io_event);
106
107 if (u->fd >= 0)
108 pa_close(u->fd);
109
110 if (u->module_infos)
111 pa_hashmap_free(u->module_infos);
112
113 pa_xfree(u);
114 }
115