/* NOTE: assumes that the pipe has been locked */
static int rl_get_counter(str *name, rl_pipe_t * pipe)
{
int new_counter;
if (rl_set_name(name) < 0)
return -1;
if (cdbf.get_counter(cdbc, &rl_name_buffer, &new_counter) < 0) {
LM_ERR("cannot retrieve key\n");
return -1;
}
pipe->counter = new_counter;
return 0;
}
/* NOTE: assumes that the pipe has been locked. If fails, releases the lock */
static int rl_change_counter(str *name, rl_pipe_t *pipe, int c)
{
int new_counter;
int ret;
if (rl_set_name(name) < 0)
return -1;
if (pipe->my_counter + c < 0) {
LM_DBG("Counter going negative\n");
return 1;
}
if (c) {
if (c < 0)
ret = cdbf.sub(cdbc, &rl_name_buffer, -c, rl_expire_time, &new_counter);
else
ret = cdbf.add(cdbc, &rl_name_buffer, c, rl_expire_time, &new_counter);
} else {
if (pipe->my_counter) {
ret = cdbf.sub(cdbc, &rl_name_buffer, pipe->my_counter, rl_expire_time,
&new_counter);
} else {
ret = cdbf.get_counter(cdbc, &rl_name_buffer, &new_counter);
}
}
if (ret < 0) {
LM_ERR("cannot change counter for pipe %.*s with %d\n",
name->len, name->s, c);
return -1;
}
pipe->my_counter = c ? pipe->my_counter + c : 0;
pipe->counter = new_counter;
LM_DBG("changed with %d; my_counter: %d; counter: %d\n",
c, pipe->my_counter, new_counter);
return 0;
}
