/**
* Invoked by the networking layer when there is new
* data to be handled. The connection handler should
* consume all the input possible, and generate responses
* to all requests.
* @arg handle The connection related information
* @return 0 on success.
*/
int handle_client_connect(bloom_conn_handler *handle) {
// Look for the next command line
char *buf, *arg_buf;
int buf_len, arg_buf_len, should_free;
int status;
while (1) {
status = extract_to_terminator(handle->conn, '\n', &buf, &buf_len, &should_free);
if (status == -1) break; // Return if no command is available
// Determine the command type
conn_cmd_type type = determine_client_command(buf, buf_len, &arg_buf, &arg_buf_len);
// Handle an error or unknown response
switch(type) {
case CHECK: handle_check_cmd (handle, arg_buf, arg_buf_len); break;
case CHECK_MULTI: handle_check_multi_cmd (handle, arg_buf, arg_buf_len); break;
case GET: handle_get_cmd (handle, arg_buf, arg_buf_len); break;
case SET: handle_set_cmd (handle, arg_buf, arg_buf_len); break;
case SET_MULTI: handle_set_multi_cmd (handle, arg_buf, arg_buf_len); break;
case CREATE: handle_create_cmd (handle, arg_buf, arg_buf_len); break;
case DROP: handle_drop_cmd (handle, arg_buf, arg_buf_len); break;
case CLOSE: handle_close_cmd (handle, arg_buf, arg_buf_len); break;
case CLEAR: handle_clear_cmd (handle, arg_buf, arg_buf_len); break;
case LIST: handle_list_cmd (handle, arg_buf, arg_buf_len); break;
case INFO: handle_info_cmd (handle, arg_buf, arg_buf_len); break;
case FLUSH: handle_flush_cmd (handle, arg_buf, arg_buf_len); break;
default:
handle_client_err(handle->conn, (char*)&CMD_NOT_SUP, CMD_NOT_SUP_LEN);
break;
}
// Make sure to free the command buffer if we need to
if (should_free) free(buf);
}
return 0;
}
static void loop(void)
{
while (1) {
struct mbox_request req;
struct mbox_reply reply;
int n;
n = read(0, &req, sizeof(req));
if (n != sizeof(req)) {
dprintf(debug_fd, "invalid request %d\n", n);
return;
}
reply.status = req.is_set ?
handle_set_cmd(&req) :
handle_get_cmd(&req);
n = write(1, &reply, sizeof(reply));
if (n != sizeof(reply)) {
dprintf(debug_fd, "reply failed %d\n", n);
return;
}
}
}