SMALL_EXPORT void list_resize(list *l, int new_size)
{
assert(new_size > l->size);
pool_resize(l->pool, sizeof(list_item) * new_size);
l->size = new_size;
}
static void test_resize(void)
{
void *a, *b, *c;
pool *p = pool_new(20, 10);
a = pool_get(p);
assert(a);
b = pool_get(p);
assert(b);
assert(pool_get(p) == NULL);
pool_resize(p, 30);
c = pool_get(p);
assert(c);
assert(pool_get(p) == NULL);
/* put them back */
pool_put(p, a);
pool_put(p, b);
pool_put(p, c);
/* get them again */
a = pool_get(p);
assert(a);
b = pool_get(p);
assert(b);
c = pool_get(p);
assert(c);
assert(pool_get(p) == NULL);
/* put them back, again */
pool_put(p, a);
pool_put(p, b);
pool_put(p, c);
pool_destroy(p);
}
void mqueue_start()
{
char message_buffer[MQUEUE_BUFFER_SIZE];
from_client = mq_open(MQUEUE_SERVER, O_RDONLY | O_EXCL | O_CREAT, S_IRUSR | S_IWUSR, NULL);
to_client = mq_open(MQUEUE_CLIENT, O_WRONLY | O_EXCL | O_CREAT, S_IWUSR | S_IRUSR, NULL);
if(from_client == -1 || to_client == -1)
{
log_error("Failed to open administration interface, mq_open failed");
master_stop();
}
log_info("Apricot admin interface opened");
for(;;)
{
/* receive a message from the client administration interface */
if(mq_receive(from_client, message_buffer, MQUEUE_BUFFER_SIZE, NULL) == -1)
{
log_error("mq_receive failed : %s", strerror(errno));
continue;
}
/* process interface request */
if(!strcasecmp(message_buffer, MQUEUE_SEND_LOG))
{
FILE * log_file = log_file = fopen(conf.log_file, "r");
if(!log_file)
{
strcpy(message_buffer, MQUEUE_FAIL);
send(to_client, message_buffer);
}
else
{
while(fgets(message_buffer, MQUEUE_BUFFER_SIZE-1, log_file))
{
send(to_client, message_buffer);
}
fclose(log_file);
strcpy(message_buffer, MQUEUE_OK);
send(to_client, message_buffer);
}
}
else if(!strcasecmp(message_buffer, MQUEUE_TRUNCATE_LOG))
{
/* to preserve log consistency */
log_lock();
truncate(conf.log_file, 0);
log_unlock();
strcpy(message_buffer, MQUEUE_OK);
send(to_client, message_buffer);
}
else if(!strcasecmp(message_buffer, MQUEUE_STOP_SERVER))
{
log_info("Apricot stop asked by admin interface");
master_stop();
exit(EXIT_SUCCESS);
}
else if(!strcasecmp(message_buffer, MQUEUE_RESIZE_POOL))
{
log_info("Pool resize asked by admin interface");
/* receive a message from the client administration interface */
if(mq_receive(from_client, message_buffer, MQUEUE_BUFFER_SIZE, NULL) == -1)
{
log_error("mq_receive failed to receive new pool size : %s", strerror(errno));
continue;
}
int new_size;
if(sscanf(message_buffer, "%i", &new_size) != 1 || new_size <= 0)
{
log_error("invalid pool size %i received from admin interface", new_size);
strcpy(message_buffer, MQUEUE_FAIL);
send(to_client, message_buffer);
continue;
}
pool_resize(new_size);
strcpy(message_buffer, MQUEUE_OK);
send(to_client, message_buffer);
}
else
{
strcpy(message_buffer, MQUEUE_FAIL);
send(to_client, message_buffer);
}
}
}