#ifndef COMMUNICATOR_H
#define COMMUNICATOR_H
-#include <list>
-#include <string>
+#include <vector>
#include <msg/msg.h>
-
-class message {
-public:
- enum message_type { INFO, CREDIT, LOAD, CTRL_CLOSE, DATA_CLOSE };
-
- message(message_type t, double a): type(t), amount(a) { }
-
- message_type get_type() const { return type; }
- double get_amount() const { return amount; }
-
-private:
- message_type type;
- double amount;
-};
+#include "hostdata.h"
+#include "messages.h"
+#include "msg_thread.h"
class communicator {
public:
communicator();
~communicator();
- void send(const char* dest, message* msg);
- bool recv(message*& msg, m_host_t& from, bool wait);
- void wait_for_sent();
-
- void next_close_on_ctrl_is_last();
- void next_close_on_data_is_last();
-
- int send_backlog();
+ // Send a message to the "dest" mailbox
+ void ctrl_send(const char* dest, message* msg) {
+ ctrl_sent.push_back(real_send(dest, msg));
+ }
+ void data_send(const char* dest, message* msg) {
+ data_sent.push_back(real_send(dest, msg));
+ }
+
+ // Try to flush pending sending communications.
+ // If "wait" is true, blocks until success.
+ void ctrl_flush(bool wait) {
+ real_flush(ctrl_sent, wait);
+ }
+ void data_flush(bool wait) {
+ real_flush(data_sent, wait);
+ }
+
+ // Flush all sending_communications. Blocking.
+ void flush_all();
+
+ // Try to get a message. Returns true on success.
+ // Parameter "timeout" may be 0 for non-blocking operation, -1 for
+ // infinite waiting, or any positive timeout.
+ bool ctrl_recv(message*& msg, m_host_t& from, double timeout) {
+ return ctrl_received.pop(msg, from, timeout);
+ }
+ bool data_recv(message*& msg, m_host_t& from, double timeout) {
+ return data_received.pop(msg, from, timeout);
+ }
private:
+ // Myself
+ const hostdata* host;
+
// List of pending send communications
- std::list<msg_comm_t> sent_comm;
+ typedef std::vector<msg_comm_t> sent_comm_type;
+ sent_comm_type ctrl_sent;
+ sent_comm_type data_sent;
+
+ msg_comm_t real_send(const char* dest, message* msg);
+ void real_flush(sent_comm_type& sent_comm, bool wait);
- // Control channel for receiving
- std::string ctrl_mbox;
- msg_comm_t ctrl_comm;
- m_task_t ctrl_task;
- bool ctrl_close_is_last;
+ // Queues of received messages
+ message_queue ctrl_received;
+ message_queue data_received;
- // Data channel for receiving
- std::string data_mbox;
- msg_comm_t data_comm;
- m_task_t data_task;
- bool data_close_is_last;
+ // Handling of receiving thread
+ msg_thread* receiver_thread;
+ void receiver();
- const char* get_ctrl_mbox() const { return ctrl_mbox.c_str(); }
- const char* get_data_mbox() const { return data_mbox.c_str(); }
- static bool comm_test_n_destroy(msg_comm_t& comm);
- void flush_sent();
+ // Used to chek if a communication is successfull before destroying it
+ static void comm_check_n_destroy(msg_comm_t comm);
+ // If comm is over, call comm_check_n_destroy(comm), and return true
+ static bool comm_test_n_destroy(msg_comm_t comm);
};
#endif // !COMMUNICATOR_H
