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       1                 :            : /***
       2                 :            :   This file is part of PulseAudio.
       3                 :            : 
       4                 :            :   Copyright 2004-2006 Lennart Poettering
       5                 :            : 
       6                 :            :   PulseAudio is free software; you can redistribute it and/or modify
       7                 :            :   it under the terms of the GNU Lesser General Public License as
       8                 :            :   published by the Free Software Foundation; either version 2.1 of the
       9                 :            :   License, or (at your option) any later version.
      10                 :            : 
      11                 :            :   PulseAudio is distributed in the hope that it will be useful, but
      12                 :            :   WITHOUT ANY WARRANTY; without even the implied warranty of
      13                 :            :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
      14                 :            :   Lesser General Public License for more details.
      15                 :            : 
      16                 :            :   You should have received a copy of the GNU Lesser General Public
      17                 :            :   License along with PulseAudio; if not, write to the Free Software
      18                 :            :   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
      19                 :            :   USA.
      20                 :            : ***/
      21                 :            : 
      22                 :            : #ifdef HAVE_CONFIG_H
      23                 :            : #include <config.h>
      24                 :            : #endif
      25                 :            : 
      26                 :            : #include <stdlib.h>
      27                 :            : 
      28                 :            : #include <pulse/xmalloc.h>
      29                 :            : 
      30                 :            : #include <pulsecore/i18n.h>
      31                 :            : #include <pulsecore/macro.h>
      32                 :            : 
      33                 :            : #include "mainloop-api.h"
      34                 :            : 
      35                 :            : struct once_info {
      36                 :            :     void (*callback)(pa_mainloop_api*m, void *userdata);
      37                 :            :     void *userdata;
      38                 :            : };
      39                 :            : 
      40                 :          0 : static void once_callback(pa_mainloop_api *m, pa_defer_event *e, void *userdata) {
      41                 :          0 :     struct once_info *i = userdata;
      42                 :            : 
      43         [ #  # ]:          0 :     pa_assert(m);
      44         [ #  # ]:          0 :     pa_assert(i);
      45                 :            : 
      46         [ #  # ]:          0 :     pa_assert(i->callback);
      47                 :          0 :     i->callback(m, i->userdata);
      48                 :            : 
      49         [ #  # ]:          0 :     pa_assert(m->defer_free);
      50                 :          0 :     m->defer_free(e);
      51                 :          0 : }
      52                 :            : 
      53                 :          0 : static void free_callback(pa_mainloop_api *m, pa_defer_event *e, void *userdata) {
      54                 :          0 :     struct once_info *i = userdata;
      55                 :            : 
      56         [ #  # ]:          0 :     pa_assert(m);
      57         [ #  # ]:          0 :     pa_assert(i);
      58                 :          0 :     pa_xfree(i);
      59                 :          0 : }
      60                 :            : 
      61                 :          0 : void pa_mainloop_api_once(pa_mainloop_api* m, void (*callback)(pa_mainloop_api *m, void *userdata), void *userdata) {
      62                 :            :     struct once_info *i;
      63                 :            :     pa_defer_event *e;
      64                 :            : 
      65         [ #  # ]:          0 :     pa_assert(m);
      66         [ #  # ]:          0 :     pa_assert(callback);
      67                 :            : 
      68                 :          0 :     pa_init_i18n();
      69                 :            : 
      70                 :          0 :     i = pa_xnew(struct once_info, 1);
      71                 :          0 :     i->callback = callback;
      72                 :          0 :     i->userdata = userdata;
      73                 :            : 
      74         [ #  # ]:          0 :     pa_assert(m->defer_new);
      75         [ #  # ]:          0 :     pa_assert_se(e = m->defer_new(m, once_callback, i));
      76                 :          0 :     m->defer_set_destroy(e, free_callback);
      77                 :          0 : }