| | |
| | | #include <boost/interprocess/sync/interprocess_mutex.hpp> |
| | | #include <boost/interprocess/sync/scoped_lock.hpp> |
| | | #include <boost/noncopyable.hpp> |
| | | #include <boost/uuid/uuid.hpp> |
| | | #include <chrono> |
| | | #include <thread> |
| | | |
| | |
| | | ~MutexWithTimeLimit() { static_assert(std::is_pod<Duration>::value); } |
| | | bool try_lock(); |
| | | void lock(); |
| | | void unlock() { mutex_.unlock(); } |
| | | void unlock(); |
| | | }; |
| | | |
| | | // typedef boost::interprocess::interprocess_mutex Mutex; |
| | |
| | | ~SharedMemory(); |
| | | std::string name() const { return name_; } |
| | | bool Remove() { return Remove(name()); } |
| | | |
| | | template <class T, class... Params> |
| | | T *FindOrCreate(const std::string &name, Params &&...params) |
| | | { |
| | | return find_or_construct<T>(name.c_str(), std::nothrow)(std::forward<decltype(params)>(params)...); |
| | | } |
| | | template <class T, class... Params> |
| | | T *Create(const std::string &name, Params &&...params) |
| | | { |
| | | return construct<T>(name.c_str(), std::nothrow)(std::forward<decltype(params)>(params)...); |
| | | } |
| | | void *Alloc(const size_t size) { return allocate(size, std::nothrow); } |
| | | void Dealloc(void *p) |
| | | { |
| | |
| | | void Dealloc(offset_ptr<T> ptr) { return Dealloc(ptr.get()); } |
| | | |
| | | template <class T, class... Params> |
| | | T *New(Params const &...params) { return construct<T>(anonymous_instance, std::nothrow)(params...); } |
| | | T *New(Params &&...params) { return construct<T>(anonymous_instance, std::nothrow)(std::forward<decltype(params)>(params)...); } |
| | | template <class T> |
| | | void Delete(T *p) |
| | | { |
| | |
| | | { |
| | | static std::string ObjName(const std::string &name) { return "obj" + name; } |
| | | |
| | | protected: |
| | | public: |
| | | typedef T Data; |
| | | typedef SharedMemory ShmType; |
| | | |
| | | private: |
| | | ShmType &shm_; |
| | | std::string name_; |
| | | Data *pdata_ = nullptr; |
| | | |
| | | bool IsOk() const { return pdata_; } |
| | | |
| | | protected: |
| | | ShmType &shm() const { return shm_; } |
| | | |
| | | public: |
| | | template <class... Params> |
| | | ShmObject(ShmType &segment, const std::string &name, Params &&...t) : |
| | | shm_(segment), name_(name) |
| | | { |
| | | pdata_ = shm_.find_or_construct<Data>(ObjName(name_).c_str(), std::nothrow)(t...); |
| | | pdata_ = shm_.FindOrCreate<Data>(ObjName(name_), std::forward<decltype(t)>(t)...); |
| | | if (!IsOk()) { |
| | | throw("Error: Not enough memory, can not allocate \"" + name_ + "\""); |
| | | } |
| | | } |
| | | template <class... Params> |
| | | ShmObject(ShmType &segment, const bool create_or_else_find, const std::string &name, Params &&...t) : |
| | | shm_(segment), name_(name) |
| | | { |
| | | if (create_or_else_find) { |
| | | pdata_ = shm_.Create<Data>(ObjName(name_), std::forward<decltype(t)>(t)...); |
| | | } else { |
| | | pdata_ = shm_.Find<Data>(ObjName(name_)); |
| | | } |
| | | } |
| | | bool IsOk() const { return pdata_; } |
| | | |
| | | static bool Remove(SharedMemory &shm, const std::string &name) { return shm.destroy<Data>(ObjName(name).c_str()); } |
| | | static Data *Find(SharedMemory &shm, const std::string &name) { return shm.Find<Data>(ObjName(name)); } |
| | | Data *Find(const std::string &name) { return Find(shm_, ObjName(name)); } |
| | |
| | | Data *operator->() { return data(); } |
| | | const Data *operator->() const { return data(); } |
| | | bool Remove() { return Remove(shm_, name_); } |
| | | |
| | | private: |
| | | ShmType &shm_; |
| | | std::string name_; |
| | | Data *pdata_ = nullptr; |
| | | }; |
| | | |
| | | } // namespace bhome_shm |