src/modules/module-native-protocol-fd.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   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 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, 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 <pulsecore/module.h>
  31 #include <pulsecore/iochannel.h>
  32 #include <pulsecore/modargs.h>
  33 #include <pulsecore/protocol-native.h>
  34 #include <pulsecore/log.h>
  35
  36 #include "module-native-protocol-fd-symdef.h"
  37
  38 PA_MODULE_AUTHOR("Lennart Poettering")
  39 PA_MODULE_DESCRIPTION("Native protocol autospawn helper")
  40 PA_MODULE_VERSION(PACKAGE_VERSION)
  41
  42 static const char* const valid_modargs[] = {
  43     "fd",
  44     "public",
  45     "cookie",
  46     NULL,
  47 };
  48
  49 int pa__init(pa_core *c, pa_module*m) {
  50     pa_iochannel *io;
  51     pa_modargs *ma;
  52     int fd, r = -1;
  53     assert(c && m);
  54
  55     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
  56         pa_log(__FILE__": failed to parse module arguments.");
  57         goto finish;
  58     }
  59
  60     if (pa_modargs_get_value_s32(ma, "fd", &fd) < 0) {
  61         pa_log(__FILE__": invalid file descriptor.");
  62         goto finish;
  63     }
  64
  65     io = pa_iochannel_new(c->mainloop, fd, fd);
  66
  67     if (!(m->userdata = pa_protocol_native_new_iochannel(c, io, m, ma))) {
  68         pa_iochannel_free(io);
  69         goto finish;
  70     }
  71
  72     r = 0;
  73
  74 finish:
  75     if (ma)
  76         pa_modargs_free(ma);
  77
  78     return r;
  79 }
  80
  81 void pa__done(pa_core *c, pa_module*m) {
  82     assert(c && m);
  83
  84     pa_protocol_native_free(m->userdata);
  85 }