| | |
| | | |
| | | #include "bh_util.h" |
| | | #include "defs.h" |
| | | #include "sendq.h" |
| | | #include "shm_queue.h" |
| | | #include <atomic> |
| | | #include <boost/noncopyable.hpp> |
| | |
| | | |
| | | class ShmSocket : private boost::noncopyable |
| | | { |
| | | template <class DoSend> |
| | | inline bool SendImpl(MsgI &msg, const int timeout_ms, const DoSend &doSend) |
| | | template <class... T> |
| | | bool SendImpl(const void *valid_remote, T &&...rest) |
| | | { |
| | | bool r = false; |
| | | DEFER1(if (msg.IsCounted() || !r) { msg.Release(shm()); }); |
| | | r = doSend(msg); |
| | | return r; |
| | | send_buffer_.Append(*static_cast<const MQId *>(valid_remote), std::forward<decltype(rest)>(rest)...); |
| | | return true; |
| | | } |
| | | |
| | | protected: |
| | |
| | | ShmSocket(Shm &shm, const MQId &id, const int len); |
| | | ShmSocket(Shm &shm, const int len = 12); |
| | | ~ShmSocket(); |
| | | static bool Remove(SharedMemory &shm, const MQId &id) { return Queue::Remove(shm, id); } |
| | | bool Remove() { return Remove(shm(), id()); } |
| | | const MQId &id() const { return mq().Id(); } |
| | | Shm &shm() { return shm_; } |
| | | // start recv. |
| | | bool Start(int nworker = 1, const RecvCB &onData = RecvCB(), const IdleCB &onIdle = IdleCB()); |
| | | bool Start(const RecvCB &onData, const IdleCB &onIdle, int nworker = 1) { return Start(nworker, onData, onIdle); } |
| | |
| | | bool Stop(); |
| | | size_t Pending() const { return mq().Pending(); } |
| | | |
| | | bool Send(const void *valid_remote, const MsgI &imsg, const int timeout_ms) |
| | | { |
| | | assert(valid_remote); |
| | | return mq().Send(*static_cast<const MQId *>(valid_remote), imsg, timeout_ms); |
| | | } |
| | | //TODO reimplment, using async. |
| | | bool SyncRecv(MsgI &msg, bhome::msg::BHMsgHead &head, const int timeout_ms); |
| | | |
| | | template <class Body> |
| | | bool Send(const void *valid_remote, const BHMsgHead &head, const Body &body, const int timeout_ms, const RecvCB &cb) |
| | | bool Send(const void *valid_remote, BHMsgHead &head, Body &body, RecvCB &&cb = RecvCB()) |
| | | { |
| | | auto DoSend = [&](MsgI &msg) { return mq().Send(*static_cast<const MQId *>(valid_remote), msg, timeout_ms, [&]() { async_cbs_->Add(head.msg_id(), cb); }); }; |
| | | MsgI msg; |
| | | return msg.Make(shm(), head, body) && SendImpl(msg, timeout_ms, DoSend); |
| | | try { |
| | | if (!cb) { |
| | | return SendImpl(valid_remote, MsgI::Serialize(head, body)); |
| | | } else { |
| | | std::string msg_id(head.msg_id()); |
| | | per_msg_cbs_->Store(msg_id, std::move(cb)); |
| | | auto onExpireRemoveCB = [this, msg_id](SendQ::Data const &msg) { |
| | | RecvCB cb_no_use; |
| | | per_msg_cbs_->Pick(msg_id, cb_no_use); |
| | | }; |
| | | return SendImpl(valid_remote, MsgI::Serialize(head, body), onExpireRemoveCB); |
| | | } |
| | | } catch (...) { |
| | | SetLastError(eError, "Send internal error."); |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | template <class Body> |
| | | bool Send(const void *valid_remote, const BHMsgHead &head, const Body &body, const int timeout_ms) |
| | | bool Send(const void *valid_remote, const MsgI &imsg) |
| | | { |
| | | auto DoSend = [&](MsgI &msg) { return mq().Send(*static_cast<const MQId *>(valid_remote), msg, timeout_ms); }; |
| | | MsgI msg; |
| | | return msg.Make(shm(), head, body) && SendImpl(msg, timeout_ms, DoSend); |
| | | return SendImpl(valid_remote, imsg); |
| | | } |
| | | |
| | | bool SyncRecv(MsgI &msg, bhome_msg::BHMsgHead &head, const int timeout_ms); |
| | | |
| | | template <class Body> |
| | | bool SendAndRecv(const void *remote, const BHMsgHead &head, const Body &body, MsgI &reply, BHMsgHead &reply_head, const int timeout_ms) |
| | | bool SendAndRecv(const void *remote, BHMsgHead &head, Body &body, MsgI &reply, BHMsgHead &reply_head, const int timeout_ms) |
| | | { |
| | | struct State { |
| | | std::mutex mutex; |
| | |
| | | reply.swap(msg); |
| | | reply_head.Swap(&head); |
| | | st->cv.notify_one(); |
| | | } else { |
| | | } else { // ignore |
| | | } |
| | | }; |
| | | |
| | | std::unique_lock<std::mutex> lk(st->mutex); |
| | | bool sendok = Send(remote, head, body, timeout_ms, OnRecv); |
| | | bool sendok = Send(remote, head, body, std::move(OnRecv)); |
| | | if (!sendok) { |
| | | printf("send timeout\n"); |
| | | } |
| | | if (sendok && st->cv.wait_until(lk, endtime) == std::cv_status::no_timeout) { |
| | | return true; |
| | | } else { |
| | | st->canceled = true; |
| | | SetLastError(ETIMEDOUT, "timeout"); |
| | | return false; |
| | | } |
| | | } catch (...) { |
| | |
| | | } |
| | | } |
| | | |
| | | Shm &shm() const { return mq().shm(); } |
| | | |
| | | protected: |
| | | const Shm &shm() const { return shm_; } |
| | | Queue &mq() { return mq_; } // programmer should make sure that mq_ is valid. |
| | | const Queue &mq() const { return mq_; } |
| | | std::mutex &mutex() { return mutex_; } |
| | |
| | | bool StopNoLock(); |
| | | bool RunningNoLock() { return !workers_.empty(); } |
| | | |
| | | Shm &shm_; |
| | | std::vector<std::thread> workers_; |
| | | std::mutex mutex_; |
| | | std::atomic<bool> run_; |
| | |
| | | std::unordered_map<std::string, RecvCB> store_; |
| | | |
| | | public: |
| | | bool Add(const std::string &id, const RecvCB &cb) { return store_.emplace(id, cb).second; } |
| | | bool Find(const std::string &id, RecvCB &cb) |
| | | bool empty() const { return store_.empty(); } |
| | | bool Store(const std::string &id, RecvCB &&cb) { return store_.emplace(id, std::move(cb)).second; } |
| | | bool Pick(const std::string &id, RecvCB &cb) |
| | | { |
| | | auto pos = store_.find(id); |
| | | if (pos != store_.end()) { |
| | |
| | | } |
| | | }; |
| | | |
| | | Synced<AsyncCBs> async_cbs_; |
| | | Synced<AsyncCBs> per_msg_cbs_; |
| | | SendQ send_buffer_; |
| | | // Synced<SendQ> send_buffer_; |
| | | }; |
| | | |
| | | #endif // end of include guard: SOCKET_GWTJHBPO |