examples/msg/kademlia/task.h

   1 /* Copyright (c) 2012. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6 #ifndef _MSG_KADEMLIA_EXAMPLES_TASK
   7 #define _MSG_KADEMLIA_EXAMPLES_TASK
   8 #include "common.h"
   9 #include "node.h"
  10 #include "msg/msg.h"
  11 /**
  12   * Types of tasks exchanged
  13   */
  14 typedef enum {
  15   TASK_FIND_NODE,
  16   TASK_FIND_NODE_ANSWER,
  17   TASK_FIND_VALUE,
  18   TASK_FIND_VALUE_ANSWER,
  19   TASK_PING,
  20   TASK_PING_ANSWER,
  21   TASK_LEAVING
  22 } e_task_type_t;
  23 /**
  24   * Data attached with the tasks
  25   */
  26 typedef struct s_task_data {
  27   e_task_type_t type;
  28   unsigned int sender_id;       //Id of the guy who sent the task
  29   unsigned int destination_id;  //Id we are trying to find, if needed.
  30   answer_t answer;              //Answer to the request made, if needed.
  31   char *answer_to;              // mailbox to send the answer to (if not an answer).
  32   const char *issuer_host_name; // used for logging
  33 } s_task_data_t, *task_data_t;
  34
  35 //Task handling functions
  36 msg_task_t task_new_find_node(unsigned int sender_id,
  37                               unsigned int destination_id, char *mailbox,
  38                               const char *hostname);
  39
  40 msg_task_t task_new_find_node_answer(unsigned int sender_id,
  41                                      unsigned int destination_id,
  42                                      answer_t answer, char *mailbox,
  43                                      const char *hostname);
  44
  45 msg_task_t task_new_ping(unsigned int sender_id, char *mailbox,
  46                          const char *hostname);
  47 msg_task_t task_new_ping_answer(unsigned int sender_id, char *mailbox,
  48                                 const char *hostname);
  49 void task_free(msg_task_t task);
  50 void task_free_v(void *task);
  51 #endif                          /* _MSG_KADEMLIA_EXAMPLES_TASK */