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