From 250b303a9e36f1ddcb3e3b28a130a8674839a3a7 Mon Sep 17 00:00:00 2001
From: Pixel <pixel@nobis-crew.org>
Date: Thu, 17 Nov 2011 08:28:17 -0800
Subject: Since tasks can be on different task managers, one has to signal them
 a bit differently.

---
 includes/Task.h |  7 ++++++-
 src/Task.cc     | 24 +++++++++++++++++++++++-
 src/TaskMan.cc  |  2 +-
 3 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/includes/Task.h b/includes/Task.h
index 22c522e..9244347 100644
--- a/includes/Task.h
+++ b/includes/Task.h
@@ -65,10 +65,15 @@ class TaskEvent : public BaseEvent {
       TaskEvent(Task * taskWaited);
       virtual ~TaskEvent();
     void ack();
+    void signal();
     Task * taskWaited() { return m_taskWaited; }
+    void evt_cb(ev::async & w, int revents) { doSignal(); }
+  protected:
+    virtual void gotOwner(Task * task);
   private:
     Task * m_taskWaited;
-    bool m_ack;
+    bool m_ack, m_distant;
+    ev::async m_evt;
 };
 
 class Async : public BaseEvent {
diff --git a/src/Task.cc b/src/Task.cc
index 3a6f8ad..b512e23 100644
--- a/src/Task.cc
+++ b/src/Task.cc
@@ -114,13 +114,35 @@ void Balau::Events::BaseEvent::doSignal() {
     }
 }
 
-Balau::Events::TaskEvent::TaskEvent(Task * taskWaited) : m_taskWaited(taskWaited), m_ack(false) {
+Balau::Events::TaskEvent::TaskEvent(Task * taskWaited) : m_taskWaited(taskWaited), m_ack(false), m_distant(false) {
     m_taskWaited->m_waitedBy.push_back(this);
 }
 
+void Balau::Events::TaskEvent::signal() {
+    if (m_distant)
+        m_evt.send();
+    doSignal();
+}
+
+void Balau::Events::TaskEvent::gotOwner(Task * task) {
+    TaskMan * tm = task->getMyTaskMan();
+
+    m_evt.stop();
+    if (tm != m_taskWaited->getMyTaskMan()) {
+        m_evt.set(tm->getLoop());
+        m_evt.set<TaskEvent, &TaskEvent::evt_cb>(this);
+        m_evt.start();
+        m_distant = true;
+    } else {
+        m_distant = false;
+    }
+}
+
 Balau::Events::TaskEvent::~TaskEvent() {
     if (!m_ack)
         ack();
+    if (m_distant)
+        m_evt.stop();
 }
 
 void Balau::Events::TaskEvent::ack() {
diff --git a/src/TaskMan.cc b/src/TaskMan.cc
index 81811db..375a94d 100644
--- a/src/TaskMan.cc
+++ b/src/TaskMan.cc
@@ -173,7 +173,7 @@ void Balau::TaskMan::mainLoop() {
                 Task::waitedByList_t::iterator i;
                 for (i = t->m_waitedBy.begin(); i != t->m_waitedBy.end(); i++) {
                     Events::TaskEvent * e = *i;
-                    e->doSignal();
+                    e->signal();
                 }
             }
         }
-- 
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