Add BUGS and review TODO.

[loba.git] / communicator.h

diff --git a/communicator.h b/communicator.h
index 465d0cf573b3951abaeb54a109194c207710229d..66dc800b4feeea9502902348847fa85757e41682 100644 (file)
--- a/communicator.h
+++ b/communicator.h
@@ -4,6 +4,7 @@
 #define COMMUNICATOR_H
 
 #include <list>
 #define COMMUNICATOR_H
 
 #include <list>

+#include <queue>

 #include <string>
 #include <msg/msg.h>
 #include "hostdata.h"
 #include <string>
 #include <msg/msg.h>
 #include "hostdata.h"


@@ -29,49 +30,49 @@ public:
     communicator();
     ~communicator();
 
     communicator();
     ~communicator();
 

-    // Start to listen for incoming messages
-    void listen();
-

     // Send a message to the "dest" mailbox
     void send(const char* dest, message* msg);
 
     // Send a message to the "dest" mailbox
     void send(const char* dest, message* msg);
 

-    // Try to receive a message.  Returns true on success.
-    // If "wait" is true, blocks until success or error.
-    bool recv(message*& msg, m_host_t& from, bool wait);
+    // 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);
 
 
     // Try to flush pending sending communications.
     // If "wait" is true, blocks until success.
     void flush(bool wait);
 

-    // Advertise that the next "close" message is the last one, and
-    // that we do not await any message after that, either on the
-    // control or the data channel.
-    void next_close_on_ctrl_is_last();
-    void next_close_on_data_is_last();
-

 private:
     // Myself
     const hostdata* host;
 
 private:
     // Myself
     const hostdata* host;
 

+    // Used to synchronize main and receiver thread 
+    xbt_mutex_t mutex;
+    xbt_cond_t cond;
+

     // List of pending send communications
     std::list<msg_comm_t> sent_comm;
     // List of pending send communications
     std::list<msg_comm_t> sent_comm;

-    static const int send_count_before_flush;
-    int send_counter;
+
+    // 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
 
     // Control channel for receiving
     m_task_t    ctrl_task;          // receive buffer
     msg_comm_t  ctrl_comm;          // receive communication

-    bool        ctrl_close_is_last; // do not rearm comm after next close

 
     // Data channel for receiving
     m_task_t    data_task;          // receive buffer
     msg_comm_t  data_comm;          // receive communication
 
     // Data channel for receiving
     m_task_t    data_task;          // receive buffer
     msg_comm_t  data_comm;          // receive communication

-    bool        data_close_is_last; // do not rearm comm after next close

 
     const char* get_ctrl_mbox() const   { return host->get_ctrl_mbox(); }
     const char* get_data_mbox() const   { return host->get_data_mbox(); }
 
 
     const char* get_ctrl_mbox() const   { return host->get_ctrl_mbox(); }
     const char* get_data_mbox() const   { return host->get_data_mbox(); }
 

-    // Used to test if a communication is over, and to destroy it if it is.
+    // Handling of receiving thread
+    m_process_t receiver_process;
+    static int receiver_wrapper(int, char* []);
+    int receiver();
+
+    // 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);
 };
 
     static bool comm_test_n_destroy(msg_comm_t comm);
 };