code.delx.au - pulseaudio/blob - src/packet.c

   1 #include <assert.h>
   2 #include <stdlib.h>
   3
   4 #include "packet.h"
   5
   6 struct packet* packet_new(size_t length) {
   7     struct packet *p;
   8     assert(length);
   9     p = malloc(sizeof(struct packet)+length);
  10     assert(p);
  11
  12     p->ref = 1;
  13     p->length = length;
  14     p->data = (uint8_t*) (p+1);
  15     p->type = PACKET_APPENDED;
  16     return p;
  17 }
  18
  19 struct packet* packet_dynamic(uint8_t* data, size_t length) {
  20     struct packet *p;
  21     assert(data && length);
  22     p = malloc(sizeof(struct packet));
  23     assert(p);
  24
  25     p->ref = 1;
  26     p->length = length;
  27     p->data = data;
  28     p->type = PACKET_DYNAMIC;
  29 }
  30
  31 struct packet* packet_ref(struct packet *p) {
  32     assert(p && p->ref >= 1);
  33     p->ref++;
  34     return p;
  35 }
  36
  37 void packet_unref(struct packet *p) {
  38     assert(p && p->ref >= 1);
  39     p->ref--;
  40
  41     if (p->ref == 0) {
  42         if (p->type == PACKET_DYNAMIC)
  43             free(p->data);
  44         free(p);
  45     }
  46 }