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+// Copyright 2010 The Kyua Authors.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+//   notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+//   notice, this list of conditions and the following disclaimer in the
+//   documentation and/or other materials provided with the distribution.
+// * Neither the name of Google Inc. nor the names of its contributors
+//   may be used to endorse or promote products derived from this software
+//   without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/// \file utils/process/status.hpp
+/// Provides the utils::process::status class.
+
+#if !defined(UTILS_PROCESS_STATUS_HPP)
+#define UTILS_PROCESS_STATUS_HPP
+
+#include "utils/process/status_fwd.hpp"
+
+#include <ostream>
+#include <utility>
+
+#include "utils/optional.ipp"
+
+namespace utils {
+namespace process {
+
+
+/// Representation of the termination status of a process.
+class status {
+    /// The PID of the process that generated this status.
+    ///
+    /// Note that the process has exited already and been awaited for, so the
+    /// PID cannot be used to address the process.
+    int _dead_pid;
+
+    /// The exit status of the process, if it exited cleanly.
+    optional< int > _exited;
+
+    /// The signal that terminated the program, if any, and if it dumped core.
+    optional< std::pair< int, bool > > _signaled;
+
+    status(const optional< int >&, const optional< std::pair< int, bool > >&);
+
+public:
+    status(const int, int);
+    static status fake_exited(const int);
+    static status fake_signaled(const int, const bool);
+
+    int dead_pid(void) const;
+
+    bool exited(void) const;
+    int exitstatus(void) const;
+
+    bool signaled(void) const;
+    int termsig(void) const;
+    bool coredump(void) const;
+};
+
+
+std::ostream& operator<<(std::ostream&, const status&);
+
+
+}  // namespace process
+}  // namespace utils
+
+#endif  // !defined(UTILS_PROCESS_STATUS_HPP)