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#pragma once
#include <string>
#include <memory>
namespace vagt
{
namespace queue
{
/*************************************************************************************************//**
* @brief Error codes
*****************************************************************************************************/
enum XErrorCode : unsigned short
{
XErrorOk, /**< The operation is successful */
XErrorNok, /**< General failure */
XErrorFull, /**< The buffer is full */
XErrorEmpty, /**< The buffer is empty */
};
class XQueue
{
public:
virtual bool empty() = 0;
virtual XErrorCode push(const std::string& val) = 0;
virtual void pop() = 0;
virtual std::string front() = 0;
/*************************************************************************************************//**
* Create a queue in memory with specified capacity.
*****************************************************************************************************/
static std::shared_ptr<XQueue> create(int capacity);
/*************************************************************************************************//**
* Create a queue on disk.
*****************************************************************************************************/
static std::shared_ptr<XQueue> create(const std::string& path);
};
}
}
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