TYPE3

[iec.git] / src / type3_AndroidCloud / anbox-master / external / process-cpp-minimal / include / core / posix / process.h

diff --git a/src/type3_AndroidCloud/anbox-master/external/process-cpp-minimal/include/core/posix/process.h b/src/type3_AndroidCloud/anbox-master/external/process-cpp-minimal/include/core/posix/process.h
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+/*
+ * Copyright © 2013 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authored by: Thomas Voß <thomas.voss@canonical.com>
+ */
+
+#ifndef CORE_POSIX_PROCESS_H_
+#define CORE_POSIX_PROCESS_H_
+
+#include <core/posix/process_group.h>
+#include <core/posix/signalable.h>
+#include <core/posix/this_process.h>
+#include <core/posix/visibility.h>
+#include <core/posix/wait.h>
+
+#include <memory>
+#include <system_error>
+
+namespace core
+{
+namespace posix
+{
+enum class Signal;
+class Self;
+class WaitFlags;
+
+/**
+ * @brief The Process class models a process and possible operations on it.
+ *
+ * The process class is implicitly shared.
+ */
+class CORE_POSIX_DLL_PUBLIC Process : public Signalable
+{
+public:
+    /**
+     * @brief Creates a process instance wrapping an existing process.
+     * @throw Throw std::system_error if pid is invalid, i.e., pid < 0.
+     * @param pid The process identifier of the existing process.
+     */
+    explicit Process(pid_t pid);
+
+    /**
+     * @brief Returns an invalid instance for testing purposes.
+     * @return An invalid instance.
+     */
+    static Process invalid();
+
+    /**
+     * @brief Frees resources associated with the process.
+     */
+    virtual ~Process() noexcept;
+
+    /**
+     * @brief Query the pid of the process.
+     * @return The pid of the process.
+     */
+    virtual pid_t pid() const;
+
+    /**
+     * @brief Queries the id of the process group this process belongs to.
+     * @throw std::system_error in case of errors.
+     * @return The id of the process group this process belongs to.
+     */
+    virtual ProcessGroup process_group_or_throw() const;
+
+    /**
+     * @brief Queries the id of the process group this process belongs to.
+     *
+     * @return A tuple with the first element being the id of the process group
+     * this process belongs to and the second element a boolean flag indicating
+     * an error if true.
+     */
+    virtual ProcessGroup process_group(std::error_code& se) const noexcept(true);
+
+private:
+    struct CORE_POSIX_DLL_LOCAL Private;
+    std::shared_ptr<Private> d;
+};
+}
+}
+#endif // CORE_POSIX_PROCESS_H_