From 37221dc091725c6fea09181b845308ab8f26c795 Mon Sep 17 00:00:00 2001
From: Pixel <pixel@nobis-crew.org>
Date: Tue, 3 Apr 2012 08:46:21 -0700
Subject: Reworking a bit the way the queues are working, and thus, the way the
 LuaTMainTask queue works.

---
 includes/LuaTask.h |  5 ++---
 includes/Socket.h  |  2 +-
 includes/Task.h    | 32 ++++++++++++++++++++++++++++++
 includes/TaskMan.h |  8 ++++----
 includes/Threads.h | 58 ++----------------------------------------------------
 5 files changed, 41 insertions(+), 64 deletions(-)

(limited to 'includes')

diff --git a/includes/LuaTask.h b/includes/LuaTask.h
index bdde9b7..ee9d7a7 100644
--- a/includes/LuaTask.h
+++ b/includes/LuaTask.h
@@ -53,16 +53,15 @@ class LuaTask : public Task {
 class LuaMainTask : public Task {
   public:
       LuaMainTask();
-      ~LuaMainTask() { L.close(); }
+      ~LuaMainTask();
     void stop();
     virtual const char * getName() const { return "LuaMainTask"; }
   private:
     void exec(LuaExecCell * cell);
     virtual void Do();
     Lua L;
-    Events::Async m_queueEvent;
     Queue<LuaExecCell> m_queue;
-    bool m_stopping;
+    volatile bool m_stopping;
     friend class LuaExecCell;
 };
 
diff --git a/includes/Socket.h b/includes/Socket.h
index 4a73277..f63edf0 100644
--- a/includes/Socket.h
+++ b/includes/Socket.h
@@ -81,7 +81,7 @@ class Listener : public ListenerBase {
   public:
       Listener(int port, const char * local = "", void * opaque = NULL) : ListenerBase(port, local, opaque) { }
   protected:
-    virtual void factory(IO<Socket> & io, void * opaque) { createTask(new Worker(io, opaque)); }
+    virtual void factory(IO<Socket> & io, void * opaque) { TaskMan::createTask(new Worker(io, opaque)); }
     virtual void setName() { m_name = String(ClassName(this).c_str()) + " - " + m_listener->getName(); }
 };
 
diff --git a/includes/Task.h b/includes/Task.h
index 592d5c3..01d5e3f 100644
--- a/includes/Task.h
+++ b/includes/Task.h
@@ -169,4 +169,36 @@ class Task {
     bool m_okayToEAgain;
 };
 
+class QueueBase {
+  public:
+    bool isEmpty() { ScopeLock sl(m_lock); return !m_front; }
+  protected:
+      QueueBase() : m_front(NULL), m_back(NULL) { pthread_cond_init(&m_cond, NULL); }
+      ~QueueBase() { while (!isEmpty()) iPop(false); pthread_cond_destroy(&m_cond); }
+    void iPush(void * t);
+    void * iPop(bool wait);
+
+  private:
+      QueueBase(const QueueBase &) = delete;
+    QueueBase & operator=(const QueueBase &) = delete;
+    Lock m_lock;
+    struct Cell {
+          Cell(void * elem) : m_next(NULL), m_prev(NULL), m_elem(elem) { }
+          Cell(const Cell &) = delete;
+        Cell & operator=(const Cell &) = delete;
+        Cell * m_next, * m_prev;
+        void * m_elem;
+    };
+    Cell * m_front, * m_back;
+    pthread_cond_t m_cond;
+    Events::Async m_event;
+};
+
+template<class T>
+class Queue : public QueueBase {
+  public:
+    void push(T * t) { iPush(t); }
+    T * pop(bool wait = true) { return (T *) iPop(wait); }
+};
+
 };
diff --git a/includes/TaskMan.h b/includes/TaskMan.h
index 6a50491..088d5d7 100644
--- a/includes/TaskMan.h
+++ b/includes/TaskMan.h
@@ -9,12 +9,12 @@
 #include <queue>
 #include <Threads.h>
 #include <Exceptions.h>
+#include <Task.h>
 
 namespace gnu = __gnu_cxx;
 
 namespace Balau {
 
-class Task;
 class TaskScheduler;
 
 namespace Events {
@@ -35,6 +35,9 @@ class TaskMan {
     void stopMe(int code) { m_stopped = true; m_stopCode = code; }
     static Thread * createThreadedTaskMan();
     bool stopped() { return m_stopped; }
+    template<class T>
+    static T * createTask(T * t, Task * stick = NULL) { TaskMan::registerTask(t, stick); return t; }
+
   private:
     static void registerTask(Task * t, Task * stick);
     void * getStack();
@@ -62,7 +65,4 @@ class TaskMan {
     int m_stopCode;
 };
 
-template<class T>
-T * createTask(T * t, Task * stick) { TaskMan::registerTask(t, stick); return t; }
-
 };
diff --git a/includes/Threads.h b/includes/Threads.h
index 46ea365..0dfce1a 100644
--- a/includes/Threads.h
+++ b/includes/Threads.h
@@ -5,8 +5,7 @@
 
 namespace Balau {
 
-template<class T>
-class Queue;
+class QueueBase;
 
 class Lock {
   public:
@@ -18,8 +17,7 @@ class Lock {
       Lock(const Lock &) = delete;
     Lock & operator=(const Lock &) = delete;
     pthread_mutex_t m_lock;
-    template<class T>
-    friend class Queue;
+    friend class QueueBase;
 };
 
 class ScopeLock {
@@ -95,56 +93,4 @@ class GlobalThread : public Thread, public AtStart, public AtExit {
     virtual void doExit() { join(); }
 };
 
-template<class T>
-class Queue {
-  public:
-      Queue() : m_front(NULL), m_back(NULL) { pthread_cond_init(&m_cond, NULL); }
-      ~Queue() { while (!isEmpty()) pop(); pthread_cond_destroy(&m_cond); }
-    void push(T * t) {
-        ScopeLock sl(m_lock);
-        Cell * c = new Cell(t);
-        c->m_prev = m_back;
-        if (m_back)
-            m_back->m_next = c;
-        else
-            m_front = c;
-        m_back = c;
-        pthread_cond_signal(&m_cond);
-    }
-    T * pop(bool wait = true) {
-        ScopeLock sl(m_lock);
-        while (!m_front && wait)
-            pthread_cond_wait(&m_cond, &m_lock.m_lock);
-        Cell * c = m_front;
-        if (!c)
-            return NULL;
-        m_front = c->m_next;
-        if (m_front)
-            m_front->m_prev = NULL;
-        else
-            m_back = NULL;
-        T * t = c->m_elem;
-        delete c;
-        return t;
-    }
-    bool isEmpty() {
-        ScopeLock sl(m_lock);
-        return !m_front;
-    }
-  private:
-      Queue(const Queue &) = delete;
-    Queue & operator=(const Queue &) = delete;
-    Lock m_lock;
-    struct Cell {
-          Cell(T * elem) : m_next(NULL), m_prev(NULL), m_elem(elem) { }
-          Cell(const Cell &) = delete;
-        Cell & operator=(const Cell &) = delete;
-        Cell * m_next, * m_prev;
-        T * m_elem;
-    };
-    Cell * volatile m_front;
-    Cell * volatile m_back;
-    pthread_cond_t m_cond;
-};
-
 };
-- 
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