#ifndef _EXCEPTIONS_HH_
#define _EXCEPTIONS_HH_

#include <errno.h>

namespace ex {
  // An unexcpected fatal error occured
  class error {
  public:
    error(int eno = 0) : eno_(eno) {
    }

    int getErrno() const {
      return eno_;
    }

  private:
    int eno_;
  };

  // A memory allocation, or virtual address space allocation, failed
  class bad_alloc : public error {
  public:
    bad_alloc() : error(ENOMEM) {
    }
  };

  // An operation timed out
  class timeout : public error {
  public:
    timeout() : error(EAGAIN) {
    }
  };
}

#endif