/* Thread destructor used to free stuff stored in per-thread data slot. */
static void
thread_destructor(CYG_ADDRWORD data)
{
struct hostent *hent;
hent = (struct hostent *)cyg_thread_get_data(ptdindex);
if (hent)
free_hent(hent);
return;
data=data;
}
/* If there is an answer to an old query, free the memory it uses. */
static void
free_stored_hent(void)
{
struct hostent *hent;
hent = (struct hostent *)cyg_thread_get_data(ptdindex);
if (hent) {
free_hent(hent);
cyg_thread_set_data(ptdindex, (CYG_ADDRWORD)NULL);
cyg_thread_rem_destructor( &thread_destructor, 0 );
}
}
/* Allocate hent structure with room for one in_addr. Returns NULL on
failure. */
static struct hostent*
alloc_hent(void)
{
struct hostent *hent;
hent = malloc(sizeof(struct hostent));
if (hent) {
memset(hent, 0, sizeof(struct hostent));
hent->h_addr_list = malloc(sizeof(char *)*2);
if (!hent->h_addr_list) {
free_hent(hent);
return NULL;
}
hent->h_addr_list[0] = malloc(sizeof(struct in_addr));
if (!hent->h_addr_list[0]) {
free_hent(hent);
return NULL;
}
hent->h_addr_list[1] = NULL;
}
return hent;
}
static __inline__ void
free_stored_hent(void)
{
free_hent( &_hent );
}
