| | |
| | | #ifndef MSG_5BILLZET |
| | | #define MSG_5BILLZET |
| | | |
| | | #include <stdint.h> |
| | | #include "bhome_msg.pb.h" |
| | | #include "shm.h" |
| | | #include <boost/interprocess/offset_ptr.hpp> |
| | | #include <boost/uuid/uuid_generators.hpp> |
| | | #include "bhome_msg.pb.h" |
| | | #include <stdint.h> |
| | | |
| | | namespace bhome_msg { |
| | | using namespace bhome_shm; |
| | | using namespace bhome::msg; // for serialized data in MsgI |
| | | namespace bhome_msg |
| | | { |
| | | using namespace bhome_shm; |
| | | using namespace bhome::msg; // for serialized data in MsgI |
| | | |
| | | // MsgI is safe to be stored in shared memory, so POD data or offset_ptr is required. |
| | | // message format: header(meta) + body(data). |
| | |
| | | class RefCount : private boost::noncopyable |
| | | { |
| | | public: |
| | | int Inc() { Guard lk(mutex_); return ++num_; } |
| | | int Dec() { Guard lk(mutex_); return --num_; } |
| | | int Get() { Guard lk(mutex_); return num_; } |
| | | int Inc() |
| | | { |
| | | Guard lk(mutex_); |
| | | return ++num_; |
| | | } |
| | | int Dec() |
| | | { |
| | | Guard lk(mutex_); |
| | | return --num_; |
| | | } |
| | | int Get() |
| | | { |
| | | Guard lk(mutex_); |
| | | return num_; |
| | | } |
| | | |
| | | private: |
| | | Mutex mutex_; |
| | | int num_ = 1; |
| | | Mutex mutex_; |
| | | int num_ = 1; |
| | | }; |
| | | |
| | | BHMsg MakeRequest(const MQId &src_id, const void *data, const size_t size); |
| | | BHMsg MakeReply(const void *data, const size_t size); |
| | | BHMsg MakeSub(const MQId &client, const std::vector<std::string> &topics); |
| | | BHMsg MakeUnsub(const MQId &client, const std::vector<std::string> &topics); |
| | | BHMsg MakeSub(const MQId &client, const std::vector<std::string> &topics); |
| | | BHMsg MakeUnsub(const MQId &client, const std::vector<std::string> &topics); |
| | | BHMsg MakePub(const std::string &topic, const void *data, const size_t size); |
| | | |
| | | class MsgI { |
| | | class MsgI |
| | | { |
| | | private: |
| | | offset_ptr<void> ptr_; |
| | | offset_ptr<RefCount> count_; |
| | | offset_ptr<void> ptr_; |
| | | offset_ptr<RefCount> count_; |
| | | |
| | | bool BuildSubOrUnsub(SharedMemory &shm, const std::vector<std::string> &topics, const MsgType sub_unsub); |
| | | bool BuildSubOrUnsub(SharedMemory &shm, const std::vector<std::string> &topics, const MsgType sub_unsub); |
| | | |
| | | public: |
| | | MsgI(void *p=0, RefCount *c=0):ptr_(p), count_(c) {} |
| | | void swap(MsgI &a) { std::swap(ptr_, a.ptr_); std::swap(count_, a.count_); } |
| | | template <class T = void> T *get() { return static_cast<T*>(ptr_.get()); } |
| | | MsgI(void *p = 0, RefCount *c = 0) : |
| | | ptr_(p), count_(c) {} |
| | | |
| | | // AddRef and Release works for both counted and not counted msg. |
| | | int AddRef() const { return IsCounted() ? count_->Inc() : 1; } |
| | | int Release(SharedMemory &shm); |
| | | void swap(MsgI &a) |
| | | { |
| | | std::swap(ptr_, a.ptr_); |
| | | std::swap(count_, a.count_); |
| | | } |
| | | template <class T = void> |
| | | T *get() { return static_cast<T *>(ptr_.get()); } |
| | | |
| | | int Count() const{ return IsCounted() ? count_->Get() : 1; } |
| | | // AddRef and Release works for both counted and not counted msg. |
| | | int AddRef() const { return IsCounted() ? count_->Inc() : 1; } |
| | | int Release(SharedMemory &shm); |
| | | |
| | | bool IsCounted() const { return static_cast<bool>(count_); } |
| | | int Count() const { return IsCounted() ? count_->Get() : 1; } |
| | | bool IsCounted() const { return static_cast<bool>(count_); } |
| | | |
| | | bool Make(SharedMemory &shm, const BHMsg &msg); |
| | | bool MakeRC(SharedMemory &shm, const BHMsg &msg); |
| | | bool Unpack(BHMsg &msg) const; |
| | | bool Make(SharedMemory &shm, const BHMsg &msg); |
| | | bool MakeRC(SharedMemory &shm, const BHMsg &msg); |
| | | bool Unpack(BHMsg &msg) const; |
| | | }; |
| | | |
| | | inline void swap(MsgI &m1, MsgI &m2) { m1.swap(m2); } |
| | | |
| | | |
| | | } // namespace bhome_msg |
| | | |
| | | |
| | | |
| | | #endif // end of include guard: MSG_5BILLZET |