+++ /dev/null
-/*
- mesh_event_handler.h
- Copyright (C) 2018 Guus Sliepen <guus@meshlink.io>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifndef _MESH_EVENT_HANDLER_H_
-#define _MESH_EVENT_HANDLER_H_
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/types.h>
-#include <net/if.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <stdbool.h>
-#include <errno.h>
-#include <assert.h>
-#include <fcntl.h>
-#include <time.h>
-#include <stdint.h>
-
-/// mesh events
-// TODO: Add more mesh event if required.
-typedef enum {
- NO_PREFERENCE = 0,
- META_CONN_SUCCESSFUL,
- META_CONN,
- META_DISCONN,
- META_CONN_CLOSED,
- NODE_INVITATION,
- CHANGED_IP_ADDRESS,
- NODE_UNREACHABLE,
- NODE_REACHABLE,
- META_RECONN_SUCCESSFUL,
- META_RECONN_FAILURE,
- MESH_DATA_RECEIVED,
- NODE_STARTED,
- NODE_LEFT,
- NODE_RESTARTED,
- NODE_JOINED,
- NODE_JOINED1,
- NODE_JOINED2,
- NODE_JOINED3,
- PORT_NO,
- OPTIMAL_PMTU_PEER,
- OPTIMAL_PMTU_RELAY,
- ERR_NETWORK,
- SIG_ABORT,
- MESH_DATA_VERIFED,
- CHANNEL_OPENED,
- CHANNEL_REQ_RECIEVED,
- CHANNEL_CONNECTED,
- CHANNEL_DATA_RECIEVED,
- MESH_NODE_DISCOVERED,
- INCOMING_META_CONN,
- OUTGOING_META_CONN,
- AUTO_DISCONN,
- MESH_EVENT_COMPLETED,
- MAX_EVENT // Maximum event enum
-} mesh_event_t;
-
-extern const char *event_status[];
-
-/// mesh event UDP packet
-typedef struct mesh_event_payload {
- void *payload;
- mesh_event_t mesh_event;
- uint16_t client_id;
- uint32_t payload_length;
-} mesh_event_payload_t;
-
-struct cond_flag {
- pthread_mutex_t mutex;
- pthread_cond_t cond;
- bool flag;
-};
-
-/// callback for handling the mesh event
-/** mesh event callback called from wait_for_event() if the mesh event UDP server gets a mesh event.
- *
- * @param mesh_event_packet packet containing client-id, mesh event & payload (if any).
- */
-typedef bool (*mesh_event_callback_t)(mesh_event_payload_t mesh_event_packet);
-
-/// Creates an UDP server for listening mesh events.
-/** This function creates an UDP socket, binds it with given interface address and returns a NULL
- * terminated string containing server's IP address & port number.
- *
- * @param ifname Name of the network interface to which the socket has to be created.
- *
- * @return This function returns a NULL terminated string which has IP address and
- * port number of the server socket. The application should call free() after
- * it has finished using the exported string.
- */
-extern char *mesh_event_sock_create(const char *ifname);
-
-/// Waits for the mesh event for about the given timeout.
-/** This function waits for the mesh event that's expected to occur for the given timeout. If a mesh event
- * is received then the given callback will be invoked.
- *
- * @param callback callback which handles the mesh event packet.
- * @param timeout timeout for which the the function has to wait for the event.
- *
- * @return This function returns true if a mesh event occurred else false if timeout exceeded.
- */
-extern bool wait_for_event(mesh_event_callback_t callback, int timeout);
-
-/// Sends the mesh event to server.
-/** This function sends the mesh event to the server. At the server end it's expected to wait_for_event()
- * otherwise the packet will be dropped.
- *
- * @param client_id Client id by which server can identify the client/node.
- * @param event An enum describing the mesh event.
- * @param payload Payload can also be attached along with the mesh event if any, else NULL can
- * can be specified.
- * @param payload_length Length of the payload if specified else 0 can be specified.
- * the maximum payload size can be up to PAYLOAD_MAX_SIZE and if the
- * PAYLOAD_MAX_SIZE macro is changed it should not exceed the UDP datagram size.
- *
- * @return This function returns true on success else returns false.
- */
-extern bool mesh_event_sock_send(int client_id, mesh_event_t event, const void *payload, size_t payload_length);
-
-/// Imports the server address, saves it and opens an UDP client socket.
-/** This function creates an UDP socket, binds it with given interface address and returns a NULL
- * terminated string containing server's IP address & port number.
- *
- * @param server_address NULL terminated string that's exported by mesh_event_sock_create() which
- * which contains IP address and port number of the mesh event server.
- *
- * @return void
- */
-extern void mesh_event_sock_connect(const char *server_address);
-
-extern void mesh_event_destroy(void);
-
-extern void mesh_events_flush(void);
-
-#endif // _MESH_EVENT_HANDLER_H_
projects / meshlink-tiny / blobdiff