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/***
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. */
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 {
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();
}
}
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