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

   1
   2 /***
   3   This file is part of PulseAudio.
   4
   5   Copyright 2004-2006 Lennart Poettering
   6
   7   PulseAudio is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU Lesser General Public License as published
   9   by the Free Software Foundation; either version 2 of the License,
  10   or (at your option) any later version.
  11
  12   PulseAudio is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with PulseAudio; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20   USA.
  21 ***/
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <unistd.h>
  28 #include <string.h>
  29 #include <errno.h>
  30 #include <signal.h>
  31
  32 #include <pulsecore/core-error.h>
  33 #include <pulsecore/module.h>
  34 #include <pulsecore/core-util.h>
  35 #include <pulsecore/modargs.h>
  36 #include <pulsecore/log.h>
  37
  38 #include "module-esound-compat-spawnpid-symdef.h"
  39
  40 PA_MODULE_AUTHOR("Lennart Poettering");
  41 PA_MODULE_DESCRIPTION("ESOUND compatibility module: -spawnpid emulation");
  42 PA_MODULE_VERSION(PACKAGE_VERSION);
  43 PA_MODULE_LOAD_ONCE(TRUE);
  44 PA_MODULE_USAGE("pid=<process id>");
  45
  46 static const char* const valid_modargs[] = {
  47     "pid",
  48     NULL,
  49 };
  50
  51 int pa__init(pa_module*m) {
  52     pa_modargs *ma = NULL;
  53     int ret = -1;
  54     uint32_t pid = 0;
  55
  56     pa_assert(m);
  57
  58     if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
  59         pa_modargs_get_value_u32(ma, "pid", &pid) < 0 ||
  60         !pid) {
  61         pa_log("Failed to parse module arguments");
  62         goto finish;
  63     }
  64
  65     if (kill(pid, SIGUSR1) < 0)
  66         pa_log_warn("kill(%u) failed: %s", pid, pa_cstrerror(errno));
  67
  68     pa_module_unload_request(m);
  69
  70     ret = 0;
  71
  72 finish:
  73     if (ma)
  74         pa_modargs_free(ma);
  75
  76     return ret;
  77 }