void *_ast_register_timing_interface(struct ast_timing_interface *funcs,
struct ast_module *mod)
{
struct timing_holder *h;
if (!funcs->timer_open ||
!funcs->timer_close ||
!funcs->timer_set_rate ||
!funcs->timer_ack ||
!funcs->timer_get_event ||
!funcs->timer_get_max_rate ||
!funcs->timer_enable_continuous ||
!funcs->timer_disable_continuous) {
return NULL;
}
if (!(h = ast_calloc(1, sizeof(*h)))) {
return NULL;
}
h->iface = funcs;
h->mod = mod;
ast_heap_wrlock(timing_interfaces);
ast_heap_push(timing_interfaces, h);
ast_heap_unlock(timing_interfaces);
return h;
}
struct ast_timer *ast_timer_open(void)
{
int fd = -1;
struct timing_holder *h;
struct ast_timer *t = NULL;
ast_heap_rdlock(timing_interfaces);
if ((h = ast_heap_peek(timing_interfaces, 1))) {
fd = h->iface->timer_open();
ast_module_ref(h->mod);
}
if (fd != -1) {
if (!(t = ast_calloc(1, sizeof(*t)))) {
h->iface->timer_close(fd);
} else {
t->fd = fd;
t->holder = h;
}
}
ast_heap_unlock(timing_interfaces);
return t;
}
struct ast_timer *ast_timer_open(void)
{
void *data = NULL;
struct timing_holder *h;
struct ast_timer *t = NULL;
ast_heap_rdlock(timing_interfaces);
if ((h = ast_heap_peek(timing_interfaces, 1))) {
data = h->iface->timer_open();
ast_module_ref(h->mod);
}
if (data) {
if (!(t = ast_calloc(1, sizeof(*t)))) {
h->iface->timer_close(data);
} else {
t->data = data;
t->holder = h;
}
}
ast_heap_unlock(timing_interfaces);
return t;
}
int ast_unregister_timing_interface(void *handle)
{
struct timing_holder *h = handle;
int res = -1;
ast_heap_wrlock(timing_interfaces);
h = ast_heap_remove(timing_interfaces, h);
ast_heap_unlock(timing_interfaces);
if (h) {
ast_free(h);
h = NULL;
res = 0;
}
return res;
}
