#pragma once

#include <memory>

#include <string>

#include "envoy/common/platform.h"

namespace Envoy {

namespace Api {

/**

 * SysCallResult holds the rc and errno values resulting from a system call.

 */

template <typename T> struct SysCallResult {

  /**

   * The return code from the system call.

   */

  T return_value_;

  /**

   * The errno value as captured after the system call.

   */

  int errno_;

};

using SysCallIntResult = SysCallResult<int>;

using SysCallSizeResult = SysCallResult<ssize_t>;

using SysCallPtrResult = SysCallResult<void*>;

using SysCallStringResult = SysCallResult<std::string>;

using SysCallBoolResult = SysCallResult<bool>;

using SysCallSocketResult = SysCallResult<os_fd_t>;

} // namespace Api

} // namespace Envoy