X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/051812e67ee3e1d24c8fad3f03b91627ba2821f7..716c8e0b373bed43c35af2b35514f0b7a69b08a5:/src/kernel/activity/CommImpl.cpp

diff --git a/src/kernel/activity/CommImpl.cpp b/src/kernel/activity/CommImpl.cpp
index 5615d87cfc..25a76617e4 100644
--- a/src/kernel/activity/CommImpl.cpp
+++ b/src/kernel/activity/CommImpl.cpp
@@ -37,7 +37,9 @@ CommImpl::CommImpl()
 std::function<void(CommImpl*, void*, size_t)> CommImpl::copy_data_callback_ = [](kernel::activity::CommImpl* comm,
                                                                                  void* buff, size_t buff_size) {
   xbt_assert((buff_size == sizeof(void*)), "Cannot copy %zu bytes: must be sizeof(void*)", buff_size);
-  *(void**)(comm->dst_buff_) = buff;
+  if (comm->dst_buff_ != nullptr) // get_async provided a buffer
+    *(void**)(comm->dst_buff_) = buff;
+  comm->payload_ = buff; // Setup what will be retrieved by s4u::Comm::get_payload()
 };
 
 void CommImpl::set_copy_data_callback(const std::function<void(CommImpl*, void*, size_t)>& callback)
@@ -192,7 +194,7 @@ void CommImpl::copy_data()
 {
   size_t buff_size = src_buff_size_;
   /* If there is no data to copy then return */
-  if (not src_buff_ || not dst_buff_ || copied_)
+  if (not src_buff_ || not dst_buff_size_ || copied_)
     return;
 
   XBT_DEBUG("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)", this,
@@ -486,8 +488,8 @@ void CommImpl::finish()
   if (get_iface()) {
     const auto& piface = static_cast<const s4u::Comm&>(*get_iface());
     set_iface(nullptr); // reset iface to protect against multiple trigger of the on_completion signals
-    s4u::Comm::on_completion(piface);
-    piface.on_this_completion(piface);
+    piface.fire_on_completion_for_real();
+    piface.fire_on_this_completion_for_real();
   }
 
   /* Update synchro state */