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

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio 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   polypaudio 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 polypaudio; 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 <polypcore/xmalloc.h>
  26 #include <polypcore/props.h>
  27 #include <polypcore/log.h>
  28
  29 #include "authkey-prop.h"
  30
  31 struct authkey_data {
  32     int ref;
  33     size_t length;
  34 };
  35
  36 int pa_authkey_prop_get(pa_core *c, const char *name, void *data, size_t len) {
  37     struct authkey_data *a;
  38     assert(c && name && data && len > 0);
  39
  40     if (!(a = pa_property_get(c, name)))
  41         return -1;
  42
  43     assert(a->length == len);
  44     memcpy(data, a+1, len);
  45     return 0;
  46 }
  47
  48 int pa_authkey_prop_put(pa_core *c, const char *name, const void *data, size_t len) {
  49     struct authkey_data *a;
  50     assert(c && name);
  51
  52     if (pa_property_get(c, name))
  53         return -1;
  54
  55     a = pa_xmalloc(sizeof(struct authkey_data) + len);
  56     a->ref = 1;
  57     a->length = len;
  58     memcpy(a+1, data, len);
  59
  60     pa_property_set(c, name, a);
  61
  62     return 0;
  63 }
  64
  65 void pa_authkey_prop_ref(pa_core *c, const char *name) {
  66     struct authkey_data *a;
  67     assert(c && name);
  68
  69     a = pa_property_get(c, name);
  70     assert(a && a->ref >= 1);
  71
  72     a->ref++;
  73 }
  74
  75 void pa_authkey_prop_unref(pa_core *c, const char *name) {
  76     struct authkey_data *a;
  77     assert(c && name);
  78
  79     a = pa_property_get(c, name);
  80     assert(a && a->ref >= 1);
  81
  82     if (!(--a->ref)) {
  83         pa_property_remove(c, name);
  84         pa_xfree(a);
  85     }
  86 }
  87
  88