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

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2004-2006 Lennart Poettering
   7
   8   PulseAudio is free software; you can redistribute it and/or modify
   9   it under the terms of the GNU Lesser General Public License as published
  10   by the Free Software Foundation; either version 2 of the License,
  11   or (at your option) any later version.
  12
  13   PulseAudio is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with PulseAudio; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21   USA.
  22 ***/
  23
  24 #include <assert.h>
  25 #include <string.h>
  26
  27 #include <pulse/xmalloc.h>
  28
  29 #include <pulsecore/props.h>
  30 #include <pulsecore/log.h>
  31
  32 #include "authkey-prop.h"
  33
  34 struct authkey_data {
  35     int ref;
  36     size_t length;
  37 };
  38
  39 int pa_authkey_prop_get(pa_core *c, const char *name, void *data, size_t len) {
  40     struct authkey_data *a;
  41     assert(c && name && data && len > 0);
  42
  43     if (!(a = pa_property_get(c, name)))
  44         return -1;
  45
  46     assert(a->length == len);
  47     memcpy(data, a+1, len);
  48     return 0;
  49 }
  50
  51 int pa_authkey_prop_put(pa_core *c, const char *name, const void *data, size_t len) {
  52     struct authkey_data *a;
  53     assert(c && name);
  54
  55     if (pa_property_get(c, name))
  56         return -1;
  57
  58     a = pa_xmalloc(sizeof(struct authkey_data) + len);
  59     a->ref = 1;
  60     a->length = len;
  61     memcpy(a+1, data, len);
  62
  63     pa_property_set(c, name, a);
  64
  65     return 0;
  66 }
  67
  68 void pa_authkey_prop_ref(pa_core *c, const char *name) {
  69     struct authkey_data *a;
  70     assert(c && name);
  71
  72     a = pa_property_get(c, name);
  73     assert(a && a->ref >= 1);
  74
  75     a->ref++;
  76 }
  77
  78 void pa_authkey_prop_unref(pa_core *c, const char *name) {
  79     struct authkey_data *a;
  80     assert(c && name);
  81
  82     a = pa_property_get(c, name);
  83     assert(a && a->ref >= 1);
  84
  85     if (!(--a->ref)) {
  86         pa_property_remove(c, name);
  87         pa_xfree(a);
  88     }
  89 }
  90
  91