1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <pulsecore/module.h>
#include <pulsecore/iochannel.h>
#include <pulsecore/cli.h>
#include <pulsecore/sioman.h>
#include <pulsecore/log.h>
#include <pulsecore/modargs.h>
#include <pulsecore/macro.h>
#include <pulsecore/core-util.h>
#include <pulsecore/core-error.h>
#include "module-cli-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("Command line interface");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(TRUE);
PA_MODULE_USAGE("exit_on_eof=<exit daemon after EOF?>");
static const char* const valid_modargs[] = {
"exit_on_eof",
NULL
};
static void eof_and_unload_cb(pa_cli*c, void *userdata) {
pa_module *m = userdata;
pa_assert(c);
pa_assert(m);
pa_module_unload_request(m, TRUE);
}
static void eof_and_exit_cb(pa_cli*c, void *userdata) {
pa_module *m = userdata;
pa_assert(c);
pa_assert(m);
pa_core_exit(m->core, FALSE, 0);
}
int pa__init(pa_module*m) {
pa_iochannel *io;
pa_modargs *ma;
pa_bool_t exit_on_eof = FALSE;
int fd;
pa_assert(m);
if (m->core->running_as_daemon) {
pa_log_info("Running as daemon, refusing to load this module.");
return 0;
}
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("failed to parse module arguments.");
goto fail;
}
if (pa_modargs_get_value_boolean(ma, "exit_on_eof", &exit_on_eof) < 0) {
pa_log("exit_on_eof= expects boolean argument.");
goto fail;
}
if (pa_stdio_acquire() < 0) {
pa_log("STDIN/STDOUT already in use.");
goto fail;
}
/* We try to open the controlling tty anew here. This has the
* benefit of giving us a new fd that doesn't share the O_NDELAY
* flag with fds 0, 1, or 2. Since pa_iochannel_xxx needs O_NDELAY
* on its fd using those fds directly could set O_NDELAY which
* fprintf() doesn't really like, resulting in truncated output
* of log messages, particularly because if stdout and stderr are
* dup'ed they share the same O_NDELAY, too. */
#ifndef OS_IS_WIN32
if ((fd = pa_open_cloexec("/dev/tty", O_RDWR|O_NONBLOCK, 0)) >= 0) {
io = pa_iochannel_new(m->core->mainloop, fd, fd);
pa_log_debug("Managed to open /dev/tty.");
}
else
#endif
{
io = pa_iochannel_new(m->core->mainloop, STDIN_FILENO, STDOUT_FILENO);
pa_iochannel_set_noclose(io, TRUE);
pa_log_debug("Failed to open /dev/tty, using stdin/stdout fds instead.");
}
m->userdata = pa_cli_new(m->core, io, m);
pa_cli_set_eof_callback(m->userdata, exit_on_eof ? eof_and_exit_cb : eof_and_unload_cb, m);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
return -1;
}
void pa__done(pa_module*m) {
pa_assert(m);
if (m->userdata) {
pa_cli_free(m->userdata);
pa_stdio_release();
}
}
|
