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/core-error.h>
  32 #include <polypcore/module.h>
  33 #include <polypcore/core-util.h>
  34 #include <polypcore/modargs.h>
  35 #include <polypcore/log.h>
  36
  37 #include "module-esound-compat-spawnpid-symdef.h"
  38
  39 PA_MODULE_AUTHOR("Lennart Poettering")
  40 PA_MODULE_DESCRIPTION("ESOUND compatibility module: -spawnpid emulation")
  41 PA_MODULE_USAGE("pid=<process id>")
  42 PA_MODULE_VERSION(PACKAGE_VERSION)
  43
  44 static const char* const valid_modargs[] = {
  45     "pid",
  46     NULL,
  47 };
  48
  49 int pa__init(pa_core *c, pa_module*m) {
  50     pa_modargs *ma = NULL;
  51     int ret = -1;
  52     uint32_t pid = 0;
  53     assert(c && m);
  54
  55     if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
  56         pa_modargs_get_value_u32(ma, "pid", &pid) < 0 ||
  57         !pid) {
  58         pa_log(__FILE__": Failed to parse module arguments");
  59         goto finish;
  60     }
  61
  62     if (kill(pid, SIGUSR1) < 0)
  63         pa_log(__FILE__": WARNING: kill(%u) failed: %s", pid, pa_cstrerror(errno));
  64
  65     pa_module_unload_request(m);
  66
  67     ret = 0;
  68
  69 finish:
  70     if (ma)
  71         pa_modargs_free(ma);
  72
  73     return ret;
  74 }
  75
  76 void pa__done(pa_core *c, pa_module*m) {
  77     assert(c && m);
  78 }
  79
  80