/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#ifdef __cplusplus
-
#ifndef SIMGRID_S4U_MAILBOX_HPP
#define SIMGRID_S4U_MAILBOX_HPP
-#include <boost/unordered_map.hpp>
+#include <string>
+
+#include <boost/intrusive_ptr.hpp>
#include <xbt/base.h>
+
#include <simgrid/s4u/forward.hpp>
#include <simgrid/s4u/actor.hpp>
*/
XBT_PUBLIC_CLASS Mailbox {
friend Comm;
+ friend simgrid::s4u::Engine;
+ friend simgrid::simix::Mailbox;
+
+ smx_mailbox_t pimpl_;
+
+ Mailbox(smx_mailbox_t mbox): pimpl_(mbox) {}
-private:
- Mailbox(const char*name, smx_mailbox_t inferior);
-public:
- ~Mailbox();
-
protected:
- smx_mailbox_t getInferior() { return inferior_; }
+ smx_mailbox_t getImpl() { return pimpl_; }
public:
+
+ // We don't have to manage the lifetime of mailboxes:
+ friend void intrusive_ptr_add_ref(Mailbox*) {}
+ friend void intrusive_ptr_release(Mailbox*) {}
+ using Ptr = boost::intrusive_ptr<Mailbox>;
+
+ /** Get the name of that mailbox */
+ const char *getName();
+
/** Retrieve the mailbox associated to the given string */
- static Mailbox *byName(const char *name);
+ static Ptr byName(const char *name);
+
/** Returns whether the mailbox contains queued communications */
bool empty();
-private:
- smx_mailbox_t inferior_;
- static boost::unordered_map<std::string, Mailbox *> *mailboxes;
+ /** Declare that the specified process is a permanent receiver on that mailbox
+ *
+ * It means that the communications sent to this mailbox will start flowing to its host even before he does a recv().
+ * This models the real behavior of TCP and MPI communications, amongst other.
+ */
+ void setReceiver(Actor* process);
+
+ /** Return the process declared as permanent receiver, or nullptr if none **/
+ ActorPtr receiver();
};
-}} // namespace simgrid::s4u
-#endif
+using MailboxPtr = Mailbox::Ptr;
+
+}} // namespace simgrid::s4u
XBT_PUBLIC(sg_mbox_t) sg_mbox_by_name(const char*name);
XBT_PUBLIC(int) sg_mbox_is_empty(sg_mbox_t mbox);
+XBT_PUBLIC(void)sg_mbox_setReceiver(sg_mbox_t mbox, smx_process_t process);
+XBT_PUBLIC(smx_process_t) sg_mbox_receiver(sg_mbox_t mbox);
#endif /* SIMGRID_S4U_MAILBOX_HPP */