Merge branch 'master' into klement

[simgrid.git] / src / s4u / s4u_Mailbox.cpp

diff --git a/src/s4u/s4u_Mailbox.cpp b/src/s4u/s4u_Mailbox.cpp
index b879b2b..72facec 100644 (file)
--- a/src/s4u/s4u_Mailbox.cpp
+++ b/src/s4u/s4u_Mailbox.cpp
@@ -34,17 +34,26 @@ Mailbox* Mailbox::by_name(const std::string& name)
   return &mbox->piface_;
 }
 
-bool Mailbox::empty()
+bool Mailbox::empty() const
 {
   return pimpl_->comm_queue_.empty();
 }
 
-bool Mailbox::listen()
+bool Mailbox::listen() const
 {
   return not this->empty() || (pimpl_->permanent_receiver_ && not pimpl_->done_comm_queue_.empty());
 }
 
-bool Mailbox::ready()
+aid_t Mailbox::listen_from() const
+{
+  kernel::activity::CommImplPtr comm = front();
+  if (comm && comm->src_actor_)
+    return comm->src_actor_->get_pid();
+  else
+    return -1;
+}
+
+bool Mailbox::ready() const
 {
   bool comm_ready = false;
   if (not pimpl_->comm_queue_.empty()) {
@@ -56,7 +65,7 @@ bool Mailbox::ready()
   return comm_ready;
 }
 
-kernel::activity::CommImplPtr Mailbox::front()
+kernel::activity::CommImplPtr Mailbox::front() const
 {
   return pimpl_->comm_queue_.empty() ? nullptr : pimpl_->comm_queue_.front();
 }
@@ -67,7 +76,7 @@ void Mailbox::set_receiver(ActorPtr actor)
 }
 
 /** @brief get the receiver (process associated to the mailbox) */
-ActorPtr Mailbox::get_receiver()
+ActorPtr Mailbox::get_receiver() const
 {
   if (pimpl_->permanent_receiver_ == nullptr)
     return ActorPtr();
@@ -210,7 +219,7 @@ sg_comm_t sg_mailbox_get_async(sg_mailbox_t mailbox, void** data)
 
 void sg_mailbox_put(sg_mailbox_t mailbox, void* payload, long simulated_size_in_bytes)
 {
-  return mailbox->put(payload, simulated_size_in_bytes);
+  mailbox->put(payload, simulated_size_in_bytes);
 }
 
 sg_comm_t sg_mailbox_put_async(sg_mailbox_t mailbox, void* payload, long simulated_size_in_bytes)