code.delx.au - pulseaudio/blob - src/pulsecore/shm.h

   1 #ifndef foopulseshmhfoo
   2 #define foopulseshmhfoo
   3
   4 /***
   5   This file is part of PulseAudio.
   6
   7   Copyright 2006 Lennart Poettering
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as
  11   published by the Free Software Foundation; either version 2.1 of the
  12   License, or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public
  20   License along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #include <sys/types.h>
  26
  27 #include <pulsecore/macro.h>
  28
  29 typedef struct pa_shm {
  30     unsigned id;
  31     void *ptr;
  32     size_t size;
  33     bool do_unlink:1;
  34     bool shared:1;
  35 } pa_shm;
  36
  37 int pa_shm_create_rw(pa_shm *m, size_t size, bool shared, mode_t mode);
  38 int pa_shm_attach_ro(pa_shm *m, unsigned id);
  39
  40 void pa_shm_punch(pa_shm *m, size_t offset, size_t size);
  41
  42 void pa_shm_free(pa_shm *m);
  43
  44 int pa_shm_cleanup(void);
  45
  46 #endif