From 29ce6b3ff37cf7b49884614f368870292b62aa38 Mon Sep 17 00:00:00 2001
From: Frederic Suter <frederic.suter@cc.in2p3.fr>
Date: Mon, 18 Dec 2017 22:44:28 +0100
Subject: [PATCH] add some signals will be needed to handle dirty pages in a
 plugin add exec->getHost() too

---
 include/simgrid/s4u/Exec.hpp           | 1 +
 include/simgrid/s4u/VirtualMachine.hpp | 3 +++
 src/kernel/activity/ExecImpl.cpp       | 6 ++++++
 src/kernel/activity/ExecImpl.hpp       | 5 ++++-
 src/plugins/vm/s4u_VirtualMachine.cpp  | 6 ++++++
 5 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/include/simgrid/s4u/Exec.hpp b/include/simgrid/s4u/Exec.hpp
index 4c7b4b3355..a90e5cc16d 100644
--- a/include/simgrid/s4u/Exec.hpp
+++ b/include/simgrid/s4u/Exec.hpp
@@ -32,6 +32,7 @@ public:
 
   ExecPtr setPriority(double priority);
   ExecPtr setHost(Host * host);
+  Host* getHost() { return host_; }
 
   double getRemains() override;
   double getRemainingRatio();
diff --git a/include/simgrid/s4u/VirtualMachine.hpp b/include/simgrid/s4u/VirtualMachine.hpp
index a655e4905e..8dcfe49f42 100644
--- a/include/simgrid/s4u/VirtualMachine.hpp
+++ b/include/simgrid/s4u/VirtualMachine.hpp
@@ -63,6 +63,9 @@ public:
 
   /* FIXME: protect me */
   simgrid::vm::VirtualMachineImpl* pimpl_vm_ = nullptr;
+
+  static simgrid::xbt::signal<void(s4u::VirtualMachine&)> onCreation;
+  static simgrid::xbt::signal<void(s4u::VirtualMachine&)> onDestruction;
 };
 }
 } // namespace simgrid::s4u
diff --git a/src/kernel/activity/ExecImpl.cpp b/src/kernel/activity/ExecImpl.cpp
index 6c0cf00c58..89bcbe3f0e 100644
--- a/src/kernel/activity/ExecImpl.cpp
+++ b/src/kernel/activity/ExecImpl.cpp
@@ -85,3 +85,9 @@ void simgrid::kernel::activity::ExecImpl::post()
   if (not simcalls.empty())
     SIMIX_execution_finish(this);
 }
+
+/*************
+ * Callbacks *
+ *************/
+simgrid::xbt::signal<void(simgrid::kernel::activity::ExecImplPtr)> simgrid::kernel::activity::ExecImpl::onCreation;
+simgrid::xbt::signal<void(simgrid::kernel::activity::ExecImplPtr)> simgrid::kernel::activity::ExecImpl::onDestruction;
diff --git a/src/kernel/activity/ExecImpl.hpp b/src/kernel/activity/ExecImpl.hpp
index e5fe71bb6e..317d93c6a2 100644
--- a/src/kernel/activity/ExecImpl.hpp
+++ b/src/kernel/activity/ExecImpl.hpp
@@ -8,12 +8,13 @@
 
 #include "src/kernel/activity/ActivityImpl.hpp"
 #include "surf/surf.hpp"
+#include "xbt/Extendable.hpp"
 
 namespace simgrid {
 namespace kernel {
 namespace activity {
 
-XBT_PUBLIC_CLASS ExecImpl : public ActivityImpl
+XBT_PUBLIC_CLASS ExecImpl : public ActivityImpl, public simgrid::xbt::Extendable<ExecImpl>
 {
   ~ExecImpl() override;
 
@@ -30,6 +31,8 @@ public:
   sg_host_t host_               = nullptr;
   surf_action_t surfAction_     = nullptr; /* The Surf execution action encapsulated */
   surf::Action* timeoutDetector = nullptr;
+  static simgrid::xbt::signal<void(kernel::activity::ExecImplPtr)> onCreation;
+  static simgrid::xbt::signal<void(kernel::activity::ExecImplPtr)> onDestruction;
 };
 }
 }
diff --git a/src/plugins/vm/s4u_VirtualMachine.cpp b/src/plugins/vm/s4u_VirtualMachine.cpp
index 3ee05b2aae..a4f2022443 100644
--- a/src/plugins/vm/s4u_VirtualMachine.cpp
+++ b/src/plugins/vm/s4u_VirtualMachine.cpp
@@ -176,5 +176,11 @@ void VirtualMachine::setParameters(vm_params_t params)
   simgrid::simix::kernelImmediate([this, params] { pimpl_vm_->setParams(params); });
 }
 
+/*************
+ * Callbacks *
+ *************/
+simgrid::xbt::signal<void(s4u::VirtualMachine&)> VirtualMachine::onCreation;
+simgrid::xbt::signal<void(s4u::VirtualMachine&)> VirtualMachine::onDestruction;
+
 } // namespace simgrid
 } // namespace s4u
-- 
2.20.1