code.delx.au - pulseaudio/blob - src/pulsecore/authkey-prop.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   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 published
   8   by the Free Software Foundation; either version 2 of the License,
   9   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   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   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 #include <assert.h>
  23 #include <string.h>
  24
  25 #include <pulse/xmalloc.h>
  26
  27 #include <pulsecore/props.h>
  28 #include <pulsecore/log.h>
  29
  30 #include "authkey-prop.h"
  31
  32 struct authkey_data {
  33     int ref;
  34     size_t length;
  35 };
  36
  37 int pa_authkey_prop_get(pa_core *c, const char *name, void *data, size_t len) {
  38     struct authkey_data *a;
  39     assert(c && name && data && len > 0);
  40
  41     if (!(a = pa_property_get(c, name)))
  42         return -1;
  43
  44     assert(a->length == len);
  45     memcpy(data, a+1, len);
  46     return 0;
  47 }
  48
  49 int pa_authkey_prop_put(pa_core *c, const char *name, const void *data, size_t len) {
  50     struct authkey_data *a;
  51     assert(c && name);
  52
  53     if (pa_property_get(c, name))
  54         return -1;
  55
  56     a = pa_xmalloc(sizeof(struct authkey_data) + len);
  57     a->ref = 1;
  58     a->length = len;
  59     memcpy(a+1, data, len);
  60
  61     pa_property_set(c, name, a);
  62
  63     return 0;
  64 }
  65
  66 void pa_authkey_prop_ref(pa_core *c, const char *name) {
  67     struct authkey_data *a;
  68     assert(c && name);
  69
  70     a = pa_property_get(c, name);
  71     assert(a && a->ref >= 1);
  72
  73     a->ref++;
  74 }
  75
  76 void pa_authkey_prop_unref(pa_core *c, const char *name) {
  77     struct authkey_data *a;
  78     assert(c && name);
  79
  80     a = pa_property_get(c, name);
  81     assert(a && a->ref >= 1);
  82
  83     if (!(--a->ref)) {
  84         pa_property_remove(c, name);
  85         pa_xfree(a);
  86     }
  87 }
  88
  89