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_USAGE("pid=<process id>")
  43 PA_MODULE_VERSION(PACKAGE_VERSION)
  44
  45 static const char* const valid_modargs[] = {
  46     "pid",
  47     NULL,
  48 };
  49
  50 int pa__init(pa_module*m) {
  51     pa_modargs *ma = NULL;
  52     int ret = -1;
  53     uint32_t pid = 0;
  54
  55     pa_assert(m);
  56
  57     if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
  58         pa_modargs_get_value_u32(ma, "pid", &pid) < 0 ||
  59         !pid) {
  60         pa_log("Failed to parse module arguments");
  61         goto finish;
  62     }
  63
  64     if (kill(pid, SIGUSR1) < 0)
  65         pa_log_warn("kill(%u) failed: %s", pid, pa_cstrerror(errno));
  66
  67     pa_module_unload_request(m);
  68
  69     ret = 0;
  70
  71 finish:
  72     if (ma)
  73         pa_modargs_free(ma);
  74
  75     return ret;
  76 }