X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/778ef0bf09f58678e4cd2bad3e57cdfeb716dd45..75e8b2ae65722d849ef899616de7091286ec91f5:/src/s4u/s4u_Comm.cpp

diff --git a/src/s4u/s4u_Comm.cpp b/src/s4u/s4u_Comm.cpp
index 24d6688f13..ea08cc5c0b 100644
--- a/src/s4u/s4u_Comm.cpp
+++ b/src/s4u/s4u_Comm.cpp
@@ -6,6 +6,7 @@
 #include "src/msg/msg_private.hpp"
 #include "xbt/log.h"
 
+#include "simgrid/Exception.hpp"
 #include "simgrid/s4u/Comm.hpp"
 #include "simgrid/s4u/Mailbox.hpp"
 
@@ -13,34 +14,32 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_comm, s4u_activity, "S4U asynchronous commun
 
 namespace simgrid {
 namespace s4u {
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Comm::on_sender_start;
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Comm::on_receiver_start;
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Comm::on_completion;
+xbt::signal<void(Actor const&)> Comm::on_sender_start;
+xbt::signal<void(Actor const&)> Comm::on_receiver_start;
+xbt::signal<void(Actor const&)> Comm::on_completion;
 
 Comm::~Comm()
 {
-  if (state_ == State::STARTED && not detached_ && (pimpl_ == nullptr || pimpl_->state_ == SIMIX_RUNNING)) {
+  if (state_ == State::STARTED && not detached_ &&
+      (pimpl_ == nullptr || pimpl_->state_ == kernel::activity::State::RUNNING)) {
     XBT_INFO("Comm %p freed before its completion. Detached: %d, State: %d", this, detached_, (int)state_);
     if (pimpl_ != nullptr)
-      XBT_INFO("pimpl_->state: %d", pimpl_->state_);
+      XBT_INFO("pimpl_->state: %d", static_cast<int>(pimpl_->state_));
     else
       XBT_INFO("pimpl_ is null");
     xbt_backtrace_display_current();
   }
 }
 
-int Comm::wait_any_for(std::vector<CommPtr>* comms, double timeout)
+int Comm::wait_any_for(const std::vector<CommPtr>* comms, double timeout)
 {
-  smx_activity_t* array = new smx_activity_t[comms->size()];
-  for (unsigned int i = 0; i < comms->size(); i++) {
-    array[i] = comms->at(i)->pimpl_;
-  }
-  int idx = simcall_comm_waitany(array, comms->size(), timeout);
-  delete[] array;
-  return idx;
+  std::unique_ptr<kernel::activity::CommImpl* []> rcomms(new kernel::activity::CommImpl*[comms->size()]);
+  std::transform(begin(*comms), end(*comms), rcomms.get(),
+                 [](const CommPtr& comm) { return static_cast<kernel::activity::CommImpl*>(comm->pimpl_.get()); });
+  return simcall_comm_waitany(rcomms.get(), comms->size(), timeout);
 }
 
-void Comm::wait_all(std::vector<CommPtr>* comms)
+void Comm::wait_all(const std::vector<CommPtr>* comms)
 {
   // TODO: this should be a simcall or something
   // TODO: we are missing a version with timeout
@@ -48,7 +47,7 @@ void Comm::wait_all(std::vector<CommPtr>* comms)
     comm->wait();
 }
 
-Comm* Comm::set_rate(double rate)
+CommPtr Comm::set_rate(double rate)
 {
   xbt_assert(state_ == State::INITED, "You cannot use %s() once your communication started (not implemented)",
              __FUNCTION__);
@@ -56,7 +55,7 @@ Comm* Comm::set_rate(double rate)
   return this;
 }
 
-Comm* Comm::set_src_data(void* buff)
+CommPtr Comm::set_src_data(void* buff)
 {
   xbt_assert(state_ == State::INITED, "You cannot use %s() once your communication started (not implemented)",
              __FUNCTION__);
@@ -64,14 +63,16 @@ Comm* Comm::set_src_data(void* buff)
   src_buff_ = buff;
   return this;
 }
-Comm* Comm::set_src_data_size(size_t size)
+
+CommPtr Comm::set_src_data_size(size_t size)
 {
   xbt_assert(state_ == State::INITED, "You cannot use %s() once your communication started (not implemented)",
              __FUNCTION__);
   src_buff_size_ = size;
   return this;
 }
-Comm* Comm::set_src_data(void* buff, size_t size)
+
+CommPtr Comm::set_src_data(void* buff, size_t size)
 {
   xbt_assert(state_ == State::INITED, "You cannot use %s() once your communication started (not implemented)",
              __FUNCTION__);
@@ -81,7 +82,7 @@ Comm* Comm::set_src_data(void* buff, size_t size)
   src_buff_size_ = size;
   return this;
 }
-Comm* Comm::set_dst_data(void** buff)
+CommPtr Comm::set_dst_data(void** buff)
 {
   xbt_assert(state_ == State::INITED, "You cannot use %s() once your communication started (not implemented)",
              __FUNCTION__);
@@ -89,12 +90,13 @@ Comm* Comm::set_dst_data(void** buff)
   dst_buff_ = buff;
   return this;
 }
+
 size_t Comm::get_dst_data_size()
 {
   xbt_assert(state_ == State::FINISHED, "You cannot use %s before your communication terminated", __FUNCTION__);
   return dst_buff_size_;
 }
-Comm* Comm::set_dst_data(void** buff, size_t size)
+CommPtr Comm::set_dst_data(void** buff, size_t size)
 {
   xbt_assert(state_ == State::INITED, "You cannot use %s() once your communication started (not implemented)",
              __FUNCTION__);
@@ -105,20 +107,27 @@ Comm* Comm::set_dst_data(void** buff, size_t size)
   return this;
 }
 
+CommPtr Comm::set_tracing_category(const std::string& category)
+{
+  xbt_assert(state_ == State::INITED, "Cannot change the tracing category of an exec after its start");
+  tracing_category_ = category;
+  return this;
+}
+
 Comm* Comm::start()
 {
-  xbt_assert(state_ == State::INITED, "You cannot use %s() once your communication started (not implemented)",
+  xbt_assert(get_state() == State::INITED, "You cannot use %s() once your communication started (not implemented)",
              __FUNCTION__);
 
   if (src_buff_ != nullptr) { // Sender side
-    on_sender_start(Actor::self());
+    on_sender_start(*Actor::self());
     pimpl_ = simcall_comm_isend(sender_, mailbox_->get_impl(), remains_, rate_, src_buff_, src_buff_size_, match_fun_,
-                                clean_fun_, copy_data_function_, user_data_, detached_);
+                                clean_fun_, copy_data_function_, get_user_data(), detached_);
   } else if (dst_buff_ != nullptr) { // Receiver side
     xbt_assert(not detached_, "Receive cannot be detached");
-    on_receiver_start(Actor::self());
+    on_receiver_start(*Actor::self());
     pimpl_ = simcall_comm_irecv(receiver_, mailbox_->get_impl(), dst_buff_, &dst_buff_size_, match_fun_,
-                                copy_data_function_, user_data_, rate_);
+                                copy_data_function_, get_user_data(), rate_);
 
   } else {
     xbt_die("Cannot start a communication before specifying whether we are the sender or the receiver");
@@ -135,7 +144,7 @@ Comm* Comm::wait()
 
 /** @brief Block the calling actor until the communication is finished, or until timeout
  *
- * On timeout, an exception is thrown.
+ * On timeout, an exception is thrown and the communication is invalidated.
  *
  * @param timeout the amount of seconds to wait for the comm termination.
  *                Negative values denote infinite wait times. 0 as a timeout returns immediately. */
@@ -143,42 +152,42 @@ Comm* Comm::wait_for(double timeout)
 {
   switch (state_) {
     case State::FINISHED:
-      return this;
+      break;
 
     case State::INITED: // It's not started yet. Do it in one simcall
       if (src_buff_ != nullptr) {
-        on_sender_start(Actor::self());
+        on_sender_start(*Actor::self());
         simcall_comm_send(sender_, mailbox_->get_impl(), remains_, rate_, src_buff_, src_buff_size_, match_fun_,
-                          copy_data_function_, user_data_, timeout);
+                          copy_data_function_, get_user_data(), timeout);
 
       } else { // Receiver
-        on_receiver_start(Actor::self());
+        on_receiver_start(*Actor::self());
         simcall_comm_recv(receiver_, mailbox_->get_impl(), dst_buff_, &dst_buff_size_, match_fun_, copy_data_function_,
-                          user_data_, timeout, rate_);
+                          get_user_data(), timeout, rate_);
       }
       state_ = State::FINISHED;
-      return this;
+      break;
 
     case State::STARTED:
       simcall_comm_wait(pimpl_, timeout);
-      on_completion(Actor::self());
+      on_completion(*Actor::self());
       state_ = State::FINISHED;
-      return this;
+      break;
+
+    case State::CANCELED:
+      throw CancelException(XBT_THROW_POINT, "Communication canceled");
 
     default:
       THROW_IMPOSSIBLE;
   }
   return this;
 }
-int Comm::test_any(std::vector<CommPtr>* comms)
+int Comm::test_any(const std::vector<CommPtr>* comms)
 {
-  smx_activity_t* array = new smx_activity_t[comms->size()];
-  for (unsigned int i = 0; i < comms->size(); i++) {
-    array[i] = comms->at(i)->pimpl_;
-  }
-  int res = simcall_comm_testany(array, comms->size());
-  delete[] array;
-  return res;
+  std::unique_ptr<kernel::activity::CommImpl* []> rcomms(new kernel::activity::CommImpl*[comms->size()]);
+  std::transform(begin(*comms), end(*comms), rcomms.get(),
+                 [](const CommPtr& comm) { return static_cast<kernel::activity::CommImpl*>(comm->pimpl_.get()); });
+  return simcall_comm_testany(rcomms.get(), comms->size());
 }
 
 Comm* Comm::detach()
@@ -192,7 +201,10 @@ Comm* Comm::detach()
 
 Comm* Comm::cancel()
 {
-  simgrid::simix::simcall([this] { static_cast<kernel::activity::CommImpl*>(pimpl_.get())->cancel(); });
+  kernel::actor::simcall([this] {
+    if (pimpl_)
+      boost::static_pointer_cast<kernel::activity::CommImpl>(pimpl_)->cancel();
+  });
   state_ = State::CANCELED;
   return this;
 }
@@ -214,21 +226,15 @@ bool Comm::test()
   return false;
 }
 
-MailboxPtr Comm::get_mailbox()
+Mailbox* Comm::get_mailbox()
 {
   return mailbox_;
 }
 
-void intrusive_ptr_release(simgrid::s4u::Comm* c)
+Actor* Comm::get_sender()
 {
-  if (c->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
-    std::atomic_thread_fence(std::memory_order_acquire);
-    delete c;
-  }
-}
-void intrusive_ptr_add_ref(simgrid::s4u::Comm* c)
-{
-  c->refcount_.fetch_add(1, std::memory_order_relaxed);
+  return sender_ ? sender_->ciface() : nullptr;
 }
+
 } // namespace s4u
 } // namespace simgrid