#define COMMUNICATOR_H
#include <list>
+#include <queue>
#include <string>
#include <msg/msg.h>
+#include "hostdata.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; }
+
+ std::string to_string();
+
+private:
+ message_type type;
+ double amount;
+};
class communicator {
public:
communicator();
~communicator();
- void send(m_task_t task, const char *dest);
- void send(m_task_t task, const std::string& dest);
- m_task_t recv();
- int sent_count();
+ // Send a message to the "dest" mailbox
+ void send(const char* dest, message* msg);
+
+ // 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 recv(message*& msg, m_host_t& from, double timeout);
+
+ // Try to flush pending sending communications.
+ // If "wait" is true, blocks until success.
+ void flush(bool wait);
private:
- typedef std::list<msg_comm_t> comm_list;
- comm_list sent_comm;
- char* recv_mbox;
- msg_comm_t recv_comm;
- m_task_t recv_task;
+ // Myself
+ const hostdata* host;
+
+ // List of pending send communications
+ std::list<msg_comm_t> sent_comm;
+
+ // Queue of received messages
+ std::queue<m_task_t> received;
+
+ // Control channel for receiving
+ m_task_t ctrl_task; // receive buffer
+ msg_comm_t ctrl_comm; // receive communication
+
+ // Data channel for receiving
+ m_task_t data_task; // receive buffer
+ msg_comm_t data_comm; // receive communication
+
+ const char* get_ctrl_mbox() const { return host->get_ctrl_mbox(); }
+ const char* get_data_mbox() const { return host->get_data_mbox(); }
+
+ // Handling of receiving thread
+ xbt_mutex_t receiver_mutex;
+ xbt_cond_t receiver_cond;
+ m_process_t receiver_thread;
+ static int receiver_wrapper(int, char* []);
+ void receiver1(msg_comm_t& comm, m_task_t& task, const char* mbox);
+ int receiver();
- void send_acknowledge();
+ // Used to test if a communication is over, and to destroy it if it is
+ static bool comm_test_n_destroy(msg_comm_t comm);
};
#endif // !COMMUNICATOR_H
