code.delx.au - pulseaudio/blob - src/modules/module-esound-compat-spawnpid.c

   1
   2 /***
   3   This file is part of polypaudio.
   4
   5   polypaudio is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU Lesser General Public License as published
   7   by the Free Software Foundation; either version 2 of the License,
   8   or (at your option) any later version.
   9
  10   polypaudio is distributed in the hope that it will be useful, but
  11   WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13   General Public License for more details.
  14
  15   You should have received a copy of the GNU Lesser General Public License
  16   along with polypaudio; if not, write to the Free Software
  17   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18   USA.
  19 ***/
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include <config.h>
  23 #endif
  24
  25 #include <unistd.h>
  26 #include <assert.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <signal.h>
  30
  31 #include <polypcore/module.h>
  32 #include <polypcore/util.h>
  33 #include <polypcore/modargs.h>
  34 #include <polypcore/log.h>
  35
  36 #include "module-esound-compat-spawnpid-symdef.h"
  37
  38 PA_MODULE_AUTHOR("Lennart Poettering")
  39 PA_MODULE_DESCRIPTION("ESOUND compatibility module: -spawnpid emulation")
  40 PA_MODULE_USAGE("pid=<process id>")
  41 PA_MODULE_VERSION(PACKAGE_VERSION)
  42
  43 static const char* const valid_modargs[] = {
  44     "pid",
  45     NULL,
  46 };
  47
  48 int pa__init(pa_core *c, pa_module*m) {
  49     pa_modargs *ma = NULL;
  50     int ret = -1;
  51     uint32_t pid = 0;
  52     assert(c && m);
  53
  54     if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
  55         pa_modargs_get_value_u32(ma, "pid", &pid) < 0 ||
  56         !pid) {
  57         pa_log(__FILE__": Failed to parse module arguments");
  58         goto finish;
  59     }
  60
  61     if (kill(pid, SIGUSR1) < 0)
  62         pa_log(__FILE__": WARNING: kill(%u) failed: %s", pid, strerror(errno));
  63
  64     pa_module_unload_request(m);
  65
  66     ret = 0;
  67
  68 finish:
  69     if (ma)
  70         pa_modargs_free(ma);
  71
  72     return ret;
  73 }
  74
  75 void pa__done(pa_core *c, pa_module*m) {
  76     assert(c && m);
  77 }
  78
  79