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include/platform/unix_platform.hpp

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+/*
+  Copyright <2018-2022> <scott.e.graves@protonmail.com>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+  associated documentation files (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge, publish, distribute,
+  sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all copies or
+  substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+  NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
+  OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+#ifndef INCLUDE_PLATFORM_UNIXPLATFORM_HPP_
+#define INCLUDE_PLATFORM_UNIXPLATFORM_HPP_
+#ifndef _WIN32
+
+#include "common.hpp"
+#include "types/repertory.hpp"
+
+namespace repertory {
+class lock_data final {
+public:
+  explicit lock_data(const provider_type &pt, std::string unique_id /*= ""*/);
+
+  lock_data();
+
+  ~lock_data();
+
+private:
+  const provider_type pt_;
+  const std::string unique_id_;
+  const std::string mutex_id_;
+  int lock_fd_;
+  int lock_status_ = EWOULDBLOCK;
+
+private:
+  static std::string get_state_directory();
+
+  static std::string get_lock_data_file();
+
+  std::string get_lock_file();
+
+private:
+  static int wait_for_lock(const int &fd, const std::uint8_t &retry_count = 30u);
+
+public:
+  bool get_mount_state(json &mount_state);
+
+  lock_result grab_lock(const std::uint8_t &retry_count = 30u);
+
+  bool set_mount_state(const bool &active, const std::string &mount_location, const int &pid);
+};
+} // namespace repertory
+
+#endif // _WIN32
+#endif // INCLUDE_PLATFORM_UNIXPLATFORM_HPP_