added net module

include/matador/net/fdset.hpp

@@ -0,0 +1,111 @@
+#ifndef MATADOR_FDSET_HPP
+#define MATADOR_FDSET_HPP
+
+#include "matador/net/export.hpp"
+#include "matador/net/os.hpp"
+
+#include <set>
+#include <functional>
+#include <cstddef>
+
+#ifdef _WIN32
+#include <winsock2.h>
+#else
+#include <sys/select.h>
+#endif
+
+namespace matador {
+
+/**
+ * This class represents a fd set
+ * used by the reactor class. There it
+ * is used in combination with a call
+ * to select.
+ */
+class OOS_NET_API fdset
+{
+public:
+  fdset(const fdset&) = delete;
+  fdset& operator=(const fdset&) = delete;
+
+  /**
+   * Default constructor creates
+   * an empty fd set
+   */
+  fdset();
+
+  /**
+   * Destroys the fd set
+   */
+  ~fdset() = default;
+
+  fdset(fdset&& x) noexcept;
+  fdset& operator=(fdset&& x) noexcept;
+
+  /**
+   * Reset all bits to zero
+   */
+  void reset();
+
+  /**
+   * Checks if the given fd is set
+   * in the fd set.
+   *
+   * @param fd Requested fd
+   * @return True if fd is set
+   */
+  bool is_set(socket_type fd) const;
+
+  /**
+   * Clears the giveb fd from the set.
+   *
+   * @param fd fd to clear
+   */
+  void clear(socket_type fd);
+
+  /**
+   * Sets the given fd in the fd set.
+   *
+   * @param fd fd to set
+   */
+  void set(socket_type fd);
+
+  /**
+   * Returns the highest fd plus one.
+   * This is needed for the call to select
+   *
+   * @return Highest fd plus one
+   */
+  socket_type maxp1() const;
+
+  /**
+   * Returns the current number of fd in the set
+   *
+   * @return Number of fd in set
+   */
+  size_t count() const;
+
+  /**
+   * Checks if the set is empty
+   *
+   * @return True if the fd set is empty
+   */
+  bool empty() const;
+
+  /**
+   * Returns a pointer to the underlying fd_set structure
+   *
+   * @return Pointer to the underlying fd_set structure
+   */
+  fd_set* get();
+
+private:
+  typedef std::set<socket_type, std::greater<> > int_set_t;
+  int_set_t max_fd_set_;
+
+  fd_set fd_set_ = {};
+};
+
+}
+
+#endif //MATADOR_FDSET_HPP