X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7d2fa9464dd72784b0e3fa18067cbec14edff31c..29c54250185627bc66380a283f2289dcdd4d6353:/src/kernel/activity/CommImpl.cpp

diff --git a/src/kernel/activity/CommImpl.cpp b/src/kernel/activity/CommImpl.cpp
index c10e7b2375..630a2c2488 100644
--- a/src/kernel/activity/CommImpl.cpp
+++ b/src/kernel/activity/CommImpl.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007-2020. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2007-2021. The SimGrid Team. All rights reserved.          */
 
 /* 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. */
@@ -41,8 +41,8 @@ XBT_PRIVATE simgrid::kernel::activity::ActivityImplPtr simcall_HANDLER_comm_isen
   XBT_DEBUG("send from mailbox %p", mbox);
 
   /* Prepare a synchro describing us, so that it gets passed to the user-provided filter of other side */
-  simgrid::kernel::activity::CommImplPtr this_comm(new simgrid::kernel::activity::CommImpl());
-  this_comm->set_type(simgrid::kernel::activity::CommImpl::Type::SEND);
+  simgrid::kernel::activity::CommImplPtr this_comm(
+      new simgrid::kernel::activity::CommImpl(simgrid::kernel::activity::CommImpl::Type::SEND));
 
   /* Look for communication synchro matching our needs. We also provide a description of
    * ourself so that the other side also gets a chance of choosing if it wants to match with us.
@@ -69,7 +69,6 @@ XBT_PRIVATE simgrid::kernel::activity::ActivityImplPtr simcall_HANDLER_comm_isen
     XBT_DEBUG("Receive already pushed");
 
     other_comm->state_ = simgrid::kernel::activity::State::READY;
-    other_comm->set_type(simgrid::kernel::activity::CommImpl::Type::READY);
   }
 
   if (detached) {
@@ -114,8 +113,8 @@ simcall_HANDLER_comm_irecv(smx_simcall_t /*simcall*/, smx_actor_t receiver, smx_
                            void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t), void* data,
                            double rate)
 {
-  simgrid::kernel::activity::CommImplPtr this_synchro(new simgrid::kernel::activity::CommImpl());
-  this_synchro->set_type(simgrid::kernel::activity::CommImpl::Type::RECEIVE);
+  simgrid::kernel::activity::CommImplPtr this_synchro(
+      new simgrid::kernel::activity::CommImpl(simgrid::kernel::activity::CommImpl::Type::RECEIVE));
   XBT_DEBUG("recv from mbox %p. this_synchro=%p", mbox, this_synchro.get());
 
   simgrid::kernel::activity::CommImplPtr other_comm;
@@ -136,7 +135,7 @@ simcall_HANDLER_comm_irecv(smx_simcall_t /*simcall*/, smx_actor_t receiver, smx_
       if (other_comm->surf_action_ && other_comm->get_remaining() < 1e-12) {
         XBT_DEBUG("comm %p has been already sent, and is finished, destroy it", other_comm.get());
         other_comm->state_ = simgrid::kernel::activity::State::DONE;
-        other_comm->set_type(simgrid::kernel::activity::CommImpl::Type::DONE).set_mailbox(nullptr);
+        other_comm->set_mailbox(nullptr);
       }
     }
   } else {
@@ -158,7 +157,6 @@ simcall_HANDLER_comm_irecv(smx_simcall_t /*simcall*/, smx_actor_t receiver, smx_
       XBT_DEBUG("Match my %p with the existing %p", this_synchro.get(), other_comm.get());
 
       other_comm->state_ = simgrid::kernel::activity::State::READY;
-      other_comm->set_type(simgrid::kernel::activity::CommImpl::Type::READY);
     }
     receiver->activities_.emplace_back(other_comm);
   }
@@ -365,12 +363,6 @@ namespace simgrid {
 namespace kernel {
 namespace activity {
 
-CommImpl& CommImpl::set_type(CommImpl::Type type)
-{
-  type_ = type;
-  return *this;
-}
-
 CommImpl& CommImpl::set_size(double size)
 {
   size_ = size;
@@ -408,11 +400,17 @@ CommImpl& CommImpl::detach()
   return *this;
 }
 
+CommImpl::CommImpl(s4u::Host* from, s4u::Host* to, double bytes)
+    : size_(bytes), detached_(true), type_(Type::SEND), from_(from), to_(to)
+{
+  state_ = State::READY;
+}
+
 CommImpl::~CommImpl()
 {
   XBT_DEBUG("Really free communication %p in state %d (detached = %d)", this, static_cast<int>(state_), detached_);
 
-  cleanupSurf();
+  cleanup_surf();
 
   if (detached_ && state_ != State::DONE) {
     /* the communication has failed and was detached:
@@ -430,25 +428,26 @@ CommImpl* CommImpl::start()
 {
   /* If both the sender and the receiver are already there, start the communication */
   if (state_ == State::READY) {
-    s4u::Host* sender   = src_actor_->get_host();
-    s4u::Host* receiver = dst_actor_->get_host();
+    from_ = from_ != nullptr ? from_ : src_actor_->get_host();
+    to_   = to_ != nullptr ? to_ : dst_actor_->get_host();
 
-    surf_action_ = surf_network_model->communicate(sender, receiver, size_, rate_);
+    surf_action_ = surf_network_model->communicate(from_, to_, size_, rate_);
     surf_action_->set_activity(this);
     surf_action_->set_category(get_tracing_category());
     state_ = State::RUNNING;
 
-    XBT_DEBUG("Starting communication %p from '%s' to '%s' (surf_action: %p)", this, sender->get_cname(),
-              receiver->get_cname(), surf_action_);
+    XBT_DEBUG("Starting communication %p from '%s' to '%s' (surf_action: %p; state: %s)", this, from_->get_cname(),
+              to_->get_cname(), surf_action_, get_state_str());
 
     /* If a link is failed, detect it immediately */
     if (surf_action_->get_state() == resource::Action::State::FAILED) {
-      XBT_DEBUG("Communication from '%s' to '%s' failed to start because of a link failure", sender->get_cname(),
-                receiver->get_cname());
+      XBT_DEBUG("Communication from '%s' to '%s' failed to start because of a link failure", from_->get_cname(),
+                to_->get_cname());
       state_ = State::LINK_FAILURE;
       post();
 
-    } else if (src_actor_->is_suspended() || dst_actor_->is_suspended()) {
+    } else if ((src_actor_ != nullptr && src_actor_->is_suspended()) ||
+               (dst_actor_ != nullptr && dst_actor_->is_suspended())) {
       /* If any of the process is suspended, create the synchro but stop its execution,
          it will be restarted when the sender process resume */
       if (src_actor_->is_suspended())
@@ -480,12 +479,12 @@ void CommImpl::copy_data()
             dst_actor_ ? dst_actor_->get_host()->get_cname() : "a finished process", dst_buff_, buff_size);
 
   /* Copy at most dst_buff_size bytes of the message to receiver's buffer */
-  if (dst_buff_size_)
+  if (dst_buff_size_) {
     buff_size = std::min(buff_size, *(dst_buff_size_));
 
-  /* Update the receiver's buffer size to the copied amount */
-  if (dst_buff_size_)
+    /* Update the receiver's buffer size to the copied amount */
     *dst_buff_size_ = buff_size;
+  }
 
   if (buff_size > 0) {
     if (copy_data_fun)
@@ -530,7 +529,7 @@ void CommImpl::cancel()
 }
 
 /** @brief This is part of the cleanup process, probably an internal command */
-void CommImpl::cleanupSurf()
+void CommImpl::cleanup_surf()
 {
   clean_action();
 
@@ -561,11 +560,11 @@ void CommImpl::post()
   } else
     state_ = State::DONE;
 
-  XBT_DEBUG("SIMIX_post_comm: comm %p, state %d, src_proc %p, dst_proc %p, detached: %d", this, (int)state_,
+  XBT_DEBUG("CommImpl::post(): comm %p, state %s, src_proc %p, dst_proc %p, detached: %d", this, get_state_str(),
             src_actor_.get(), dst_actor_.get(), detached_);
 
   /* destroy the surf actions associated with the Simix communication */
-  cleanupSurf();
+  cleanup_surf();
 
   /* Answer all simcalls associated with the synchro */
   finish();
@@ -700,16 +699,10 @@ void CommImpl::finish()
     simcall->issuer_->waiting_synchro_ = nullptr;
     simcall->issuer_->activities_.remove(this);
     if (detached_) {
-      if (simcall->issuer_ == src_actor_) {
-        if (dst_actor_)
-          dst_actor_->activities_.remove(this);
-      } else if (simcall->issuer_ == dst_actor_) {
-        if (src_actor_)
-          src_actor_->activities_.remove(this);
-      } else {
+      if (simcall->issuer_ != dst_actor_ && dst_actor_ != nullptr)
         dst_actor_->activities_.remove(this);
+      if (simcall->issuer_ != src_actor_ && src_actor_ != nullptr)
         src_actor_->activities_.remove(this);
-      }
     }
   }
 }