Initial community commit

Src/nu/SampleQueue.h

@@ -0,0 +1,81 @@
+#pragma once
+#include <bfc/platform/types.h>
+#include <deque>
+#include "../nu/AutoLock.h"
+
+template <class SampleData>
+class SampleQueue
+{
+public:
+	void PushFree(SampleData *new_sample)
+	{
+		queue_guard.Lock();
+		free_queue.push_front(new_sample);
+		queue_guard.Unlock();
+	}
+
+	void PushProcessed(SampleData *new_sample)
+	{
+		queue_guard.Lock();
+		processed_queue.push_front(new_sample);
+		queue_guard.Unlock();
+	}
+
+	// will return 0 if none ready
+	SampleData *PopProcessed()
+	{
+		SampleData *sample=0;
+		queue_guard.Lock();
+		if (!processed_queue.empty())
+		{
+			sample = processed_queue.back();
+			processed_queue.pop_back();
+		}
+		queue_guard.Unlock();
+		return sample;
+	}
+
+	SampleData *PopFree()
+	{
+		SampleData *sample=0;
+		queue_guard.Lock();
+		if (!free_queue.empty())
+		{
+			sample = free_queue.back();
+			free_queue.pop_back();
+		}
+		queue_guard.Unlock();
+		if (!sample)
+			sample = new SampleData;
+		return sample;
+	}
+
+	void Trim()
+	{
+		queue_guard.Lock();
+		//free_queue.deleteAll();
+		auto it_f = free_queue.begin();
+		while (it_f != free_queue.end())
+		{
+			SampleData* p = *it_f;
+			delete p;
+			it_f = free_queue.erase(it_f);
+		}
+			
+		//processed_queue.deleteAll();
+		auto it_p = processed_queue.begin();
+		while (it_p != processed_queue.end())
+		{
+			SampleData* p = *it_p;
+			delete p;
+			it_p = processed_queue.erase(it_p);
+		}
+		queue_guard.Unlock();
+	}
+
+private:
+	std::deque<SampleData*> free_queue;
+	std::deque<SampleData*> processed_queue;
+
+	Nullsoft::Utility::LockGuard queue_guard;
+};