整理

include/boost/process/v1/detail/posix/group_handle.hpp

@@ -0,0 +1,94 @@
+// Copyright (c) 2016 Klemens D. Morgenstern
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_PROCESS_DETAIL_POSIX_GROUP_HPP_
+#define BOOST_PROCESS_DETAIL_POSIX_GROUP_HPP_
+
+#include <boost/process/v1/detail/config.hpp>
+#include <boost/process/v1/detail/posix/child_handle.hpp>
+#include <system_error>
+#include <unistd.h>
+
+namespace boost { namespace process { BOOST_PROCESS_V1_INLINE namespace v1 { namespace detail { namespace posix {
+
+struct group_handle
+{
+    pid_t grp = -1;
+
+    typedef pid_t handle_t;
+    handle_t handle() const { return grp; }
+
+    explicit group_handle(handle_t h) :
+        grp(h)
+    {
+    }
+
+     group_handle() = default;
+
+    ~group_handle() = default;
+    group_handle(const group_handle & c) = delete;
+    group_handle(group_handle && c) : grp(c.grp)
+    {
+        c.grp = -1;
+    }
+    group_handle &operator=(const group_handle & c) = delete;
+    group_handle &operator=(group_handle && c)
+    {
+        grp = c.grp;
+        c.grp = -1;
+        return *this;
+    }
+
+    void add(handle_t proc)
+    {
+        if (::setpgid(proc, grp))
+            throw_last_error();
+    }
+    void add(handle_t proc, std::error_code & ec) noexcept
+    {
+        if (::setpgid(proc, grp))
+            ec = get_last_error();
+    }
+
+    bool has(handle_t proc)
+    {
+        return ::getpgid(proc) == grp;
+    }
+    bool has(handle_t proc, std::error_code &) noexcept
+    {
+        return ::getpgid(proc) == grp;
+    }
+
+    bool valid() const
+    {
+        return grp != -1;
+    }
+};
+
+inline  void terminate(group_handle &p, std::error_code &ec) noexcept
+{
+    if (::killpg(p.grp, SIGKILL) == -1)
+        ec = boost::process::v1::detail::get_last_error();
+    else
+        ec.clear();
+
+    p.grp = -1;
+}
+
+inline void terminate(group_handle &p)
+{
+    std::error_code ec;
+    terminate(p, ec);
+    boost::process::v1::detail::throw_error(ec, "killpg(2) failed in terminate");
+}
+
+inline bool in_group()
+{
+    return true;
+}
+
+}}}}}
+
+#endif /* BOOST_PROCESS_DETAIL_WINDOWS_GROUP_HPP_ */