code.delx.au - pulseaudio/blob - src/modules/module-cli.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio 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 of the License,
   9   or (at your option) any later version.
  10
  11   polypaudio 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 polypaudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <assert.h>
  28 #include <unistd.h>
  29
  30 #include <polypcore/module.h>
  31 #include <polypcore/iochannel.h>
  32 #include <polypcore/cli.h>
  33 #include <polypcore/sioman.h>
  34 #include <polypcore/log.h>
  35
  36 #include "module-cli-symdef.h"
  37
  38 PA_MODULE_AUTHOR("Lennart Poettering")
  39 PA_MODULE_DESCRIPTION("Command line interface")
  40 PA_MODULE_VERSION(PACKAGE_VERSION)
  41 PA_MODULE_USAGE("No arguments")
  42
  43 static void eof_cb(pa_cli*c, void *userdata) {
  44     pa_module *m = userdata;
  45     assert(c && m);
  46
  47     pa_module_unload_request(m);
  48 }
  49
  50 int pa__init(pa_core *c, pa_module*m) {
  51     pa_iochannel *io;
  52     assert(c && m);
  53
  54     if (c->running_as_daemon) {
  55         pa_log_info(__FILE__": Running as daemon so won't load this module.");
  56         return 0;
  57     }
  58
  59     if (m->argument) {
  60         pa_log(__FILE__": module doesn't accept arguments.");
  61         return -1;
  62     }
  63
  64     if (pa_stdio_acquire() < 0) {
  65         pa_log(__FILE__": STDIN/STDUSE already in use.");
  66         return -1;
  67     }
  68
  69     io = pa_iochannel_new(c->mainloop, STDIN_FILENO, STDOUT_FILENO);
  70     assert(io);
  71     pa_iochannel_set_noclose(io, 1);
  72
  73     m->userdata = pa_cli_new(c, io, m);
  74     assert(m->userdata);
  75
  76     pa_cli_set_eof_callback(m->userdata, eof_cb, m);
  77
  78     return 0;
  79 }
  80
  81 void pa__done(pa_core *c, pa_module*m) {
  82     assert(c && m);
  83
  84     if (c->running_as_daemon == 0) {
  85         pa_cli_free(m->userdata);
  86         pa_stdio_release();
  87     }
  88 }