libsaria: Begin work on a new generic idle task

I want to remove the various idle task types that have built up and
replace everything with a single idle type.  I also want the idle layer
to be the only place new tasks are allocated.

Signed-off-by: Bryan Schumaker <bjschuma@gmail.com>

include/idle.h

@@ -5,11 +5,13 @@
 
 namespace libsaria
 {
+
 	namespace idle
 	{
 
 		int size();
 		int run_task();
+		void schedule(void (*)());
 		void queue_task(IdleTask *, bool);
 		void cancel_all(void *);
 		float progress();

include/task.h

@@ -16,16 +16,6 @@ class IdleTask
 		void queue_front();
 };
 
-class IdleCallback : public IdleTask
-{
-	private:
-		void (*func)();
-	public:
-		IdleCallback(void (*)());
-		~IdleCallback();
-		void run_task();
-};
-
 class WriteTask : public IdleTask
 {
 	private:

libsaria/idle/idle.cpp

@@ -10,6 +10,31 @@ static deque<IdleTask *> idle_queue;
 static float queued = 0.0;
 static float serviced = 0.0;
 
+class GIdleTask : public IdleTask
+{
+	private:
+		void (*func)();
+
+	public:
+		GIdleTask(void (*)());
+		~GIdleTask();
+		void run_task();
+};
+
+GIdleTask::GIdleTask(void (*f)())
+{
+	func = f;
+}
+
+GIdleTask::~GIdleTask()
+{
+}
+
+void GIdleTask::run_task()
+{
+	func();
+}
+
 static void do_task(IdleTask *task)
 {
 	task->run_task();
@@ -31,6 +56,12 @@ namespace libsaria
 		return idle_queue.size();
 	}
 
+	void idle::schedule(void (*func)())
+	{
+		GIdleTask *task = new GIdleTask(func);
+		queue_task(task, false);
+	}
+
 	int idle::run_task()
 	{
 		IdleTask *task;

libsaria/idle/task.cpp

@@ -23,19 +23,3 @@ bool IdleTask::should_cancel(void *data)
 {
 	return false;
 }
-
-
-
-IdleCallback::IdleCallback(void (*f)())
-{
-	func = f;
-}
-
-IdleCallback::~IdleCallback()
-{
-}
-
-void IdleCallback::run_task()
-{
-	func();
-}

libsaria/library/library.cpp

@@ -150,15 +150,12 @@ namespace libsaria
 
 	void library::init()
 	{
-		IdleCallback *task;
 		bool random = prefs::init("libsaria.library.random", true);
 		lib_playlist.set_flag(PL_RANDOM, random);
 
 		app::mkdir("library");
 		next_id = schedule_load();
-
-		task = new IdleCallback(restore_current);
-		task->queue();
+		idle::schedule(restore_current);
 	}
 
 }; /* namespace: libsaria */