整理

include/boost/process/v2/pid.hpp

@@ -0,0 +1,66 @@
+// Copyright (c) 2022 Klemens D. Morgenstern
+// Copyright (c) 2022 Samuel Venable
+//
+// 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_V2_PID_HPP
+#define BOOST_PROCESS_V2_PID_HPP
+
+#include <boost/process/v2/detail/config.hpp>
+#include <boost/process/v2/detail/throw_error.hpp>
+
+#include <vector>
+#include <memory>
+
+BOOST_PROCESS_V2_BEGIN_NAMESPACE
+
+#if defined(GENERATING_DOCUMENTATION)
+
+//An integral type representing a process id.
+typedef implementation_defined pid_type;
+
+#else
+
+#if defined(BOOST_PROCESS_V2_WINDOWS)
+
+typedef unsigned long pid_type;
+
+#else
+
+typedef int pid_type;
+
+#endif
+#endif
+
+#if (defined(BOOST_PROCESS_V2_WINDOWS) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) || defined(__sun))
+constexpr static pid_type root_pid = 0;
+#elif (defined(__APPLE__) && defined(__MACH__) || defined(__linux__) || defined(__ANDROID__) || defined(__OpenBSD__))
+constexpr static pid_type root_pid = 1;
+#endif
+
+/// Get the process id of the current process.
+BOOST_PROCESS_V2_DECL pid_type current_pid();
+
+/// List all available pids.
+BOOST_PROCESS_V2_DECL std::vector<pid_type> all_pids(error_code & ec);
+
+/// List all available pids.
+BOOST_PROCESS_V2_DECL std::vector<pid_type> all_pids();
+
+// return parent pid of pid.
+BOOST_PROCESS_V2_DECL pid_type parent_pid(pid_type pid, error_code & ec);
+
+// return parent pid of pid.
+BOOST_PROCESS_V2_DECL pid_type parent_pid(pid_type pid);
+
+// return child pids of pid.
+BOOST_PROCESS_V2_DECL std::vector<pid_type> child_pids(pid_type pid, error_code & ec);
+
+// return child pids of pid.
+BOOST_PROCESS_V2_DECL std::vector<pid_type> child_pids(pid_type pid);
+
+BOOST_PROCESS_V2_END_NAMESPACE
+
+
+#endif // BOOST_PROCESS_V2_PID_HPP
+