| | |
| | | #include "defs.h" |
| | | #include "msg.h" |
| | | #include <chrono> |
| | | using namespace std::chrono; |
| | | using namespace std::chrono_literals; |
| | | |
| | | using namespace bhome_msg; |
| | | using namespace bhome_shm; |
| | | using namespace std::chrono_literals; |
| | | |
| | | namespace |
| | | ShmSocket::ShmSocket(Shm &shm, const MQId id, const int len) : |
| | | run_(false), mq_(shm, id, len), alloc_id_(0) { Start(); } |
| | | ShmSocket::ShmSocket(Shm &shm, const bool create_or_else_find, const MQId id, const int len) : |
| | | run_(false), mq_(shm, create_or_else_find, id, len), alloc_id_(0) { Start(); } |
| | | ShmSocket::ShmSocket(int64_t abs_addr, Shm &shm, const MQId id) : |
| | | run_(false), mq_(abs_addr, shm, id), alloc_id_(0) { Start(); } |
| | | |
| | | ShmSocket::~ShmSocket() { Stop(); } |
| | | |
| | | bool ShmSocket::Start(int nworker, const RecvCB &onData, const RawRecvCB &onRaw, const IdleCB &onIdle) |
| | | { |
| | | auto ioProc = [this, onData, onRaw, onIdle]() { |
| | | auto DoSend = [this]() { return send_buffer_.TrySend(mq()); }; |
| | | auto DoRecv = [=] { |
| | | // do not recv if no cb is set. |
| | | if (!onData && per_msg_cbs_->empty() && !onRaw && alloc_cbs_->empty()) { return false; } |
| | | |
| | | int GetSocketDefaultLen(ShmSocket::Type type) |
| | | { |
| | | switch (type) { |
| | | case ShmSocket::eSockRequest: return 12; |
| | | case ShmSocket::eSockReply: return 64; |
| | | case ShmSocket::eSockPublish: return 0; |
| | | case ShmSocket::eSockSubscribe: return 64; |
| | | default: return 0; |
| | | } |
| | | } |
| | | |
| | | } // namespace |
| | | |
| | | ShmSocket::ShmSocket(Type type, bhome_shm::SharedMemory &shm) : |
| | | shm_(shm), type_(type), run_(false) |
| | | { |
| | | int len = GetSocketDefaultLen(type); |
| | | if (len != 0) { |
| | | mq_.reset(new Queue(shm_, len)); |
| | | |
| | | auto RecvProc = [this]() { |
| | | while (run_) { |
| | | try { |
| | | std::unique_lock<std::mutex> lk(mutex_); |
| | | if (cv_recv_cb_.wait_for(lk, 100ms, [this]() { return HasRecvCB(); })) { |
| | | BHMsg msg; |
| | | if (mq_->Recv(msg, 100)) { |
| | | this->onRecv_(msg); |
| | | } |
| | | auto onMsgCB = [this, onData](ShmSocket &socket, MsgI &imsg, BHMsgHead &head) { |
| | | RecvCB cb; |
| | | if (per_msg_cbs_->Pick(head.msg_id(), cb)) { |
| | | cb(socket, imsg, head); |
| | | } else if (onData) { |
| | | onData(socket, imsg, head); |
| | | } |
| | | }; |
| | | auto onCmdCB = [this, onRaw](ShmSocket &socket, int64_t val) { |
| | | int cmd = DecodeCmd(val); |
| | | if (cmd == eCmdAllocReply0) { |
| | | int id = (val >> 4) & MaskBits(28); |
| | | RawRecvCB cb; |
| | | if (alloc_cbs_->Pick(id, cb)) { |
| | | cb(socket, val); |
| | | return; |
| | | } |
| | | } catch (...) { |
| | | } |
| | | if (onRaw) { |
| | | onRaw(socket, val); |
| | | } |
| | | }; |
| | | |
| | | auto onRecv = [&](auto &val) { |
| | | if (IsCmd(val)) { |
| | | onCmdCB(*this, val); |
| | | } else { |
| | | MsgI imsg(val); |
| | | DEFER1(imsg.Release()); |
| | | BHMsgHead head; |
| | | if (imsg.ParseHead(head)) { |
| | | onMsgCB(*this, imsg, head); |
| | | } |
| | | } |
| | | }; |
| | | ShmMsgQueue::RawData val = 0; |
| | | for (int i = 0; i < 100; ++i) { |
| | | if (mq().TryRecv(val)) { |
| | | onRecv(val); |
| | | return true; |
| | | } |
| | | } |
| | | }; |
| | | run_.store(true); |
| | | workers_.emplace_back(RecvProc); |
| | | } |
| | | } |
| | | |
| | | ShmSocket::ShmSocket(Type type) : |
| | | ShmSocket(type, BHomeShm()) |
| | | { |
| | | } |
| | | |
| | | ShmSocket::~ShmSocket() |
| | | { |
| | | Stop(); |
| | | } |
| | | |
| | | bool ShmSocket::Publish(const std::string &topic, const void *data, const size_t size, const int timeout_ms) |
| | | { |
| | | if (type_ != eSockPublish) { |
| | | return false; |
| | | } |
| | | assert(!mq_); |
| | | try { |
| | | MsgI imsg; |
| | | if (!imsg.MakeRC(shm_, MakePub(topic, data, size))) { |
| | | return false; |
| | | }; |
| | | |
| | | try { |
| | | bool more_to_send = DoSend(); |
| | | bool more_to_recv = DoRecv(); |
| | | if (onIdle) { onIdle(*this); } |
| | | if (!more_to_send && !more_to_recv) { |
| | | robust::QuickSleep(); |
| | | } |
| | | } catch (...) { |
| | | } |
| | | DEFER1(imsg.Release(shm_)); |
| | | return Queue::Send(shm_, kBHBusQueueId, imsg, timeout_ms); |
| | | }; |
| | | |
| | | } catch (...) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | bool ShmSocket::Subscribe(const std::vector<std::string> &topics, const int timeout_ms) |
| | | { |
| | | if (type_ != eSockSubscribe) { |
| | | return false; |
| | | } |
| | | assert(mq_); |
| | | try { |
| | | return mq_->Send(kBHBusQueueId, MakeSub(mq_->Id(), topics), timeout_ms); |
| | | } catch (...) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | bool ShmSocket::SetRecvCallback(const RecvCB &onRecv) |
| | | { |
| | | std::lock_guard<std::mutex> lock(mutex_); |
| | | onRecv_ = onRecv; |
| | | cv_recv_cb_.notify_one(); |
| | | StopNoLock(); |
| | | |
| | | auto worker_proc = [this, ioProc]() { |
| | | while (run_) { ioProc(); } |
| | | // try send pending msgs. |
| | | auto end_time = steady_clock::now() + 3s; |
| | | while (send_buffer_.TrySend(mq()) && steady_clock::now() < end_time) { |
| | | // LOG_DEBUG() << "try send pending msgs."; |
| | | } |
| | | }; |
| | | |
| | | run_.store(true); |
| | | for (int i = 0; i < nworker; ++i) { |
| | | workers_.emplace_back(worker_proc); |
| | | } |
| | | return true; |
| | | } |
| | | |
| | | bool ShmSocket::HasRecvCB() |
| | | bool ShmSocket::Stop() |
| | | { |
| | | return static_cast<bool>(onRecv_); |
| | | std::lock_guard<std::mutex> lock(mutex_); |
| | | return StopNoLock(); |
| | | } |
| | | |
| | | void ShmSocket::Stop() |
| | | bool ShmSocket::StopNoLock() |
| | | { |
| | | run_ = false; |
| | | for (auto &t : workers_) { |
| | | if (t.joinable()) { |
| | | t.join(); |
| | | if (run_.exchange(false)) { |
| | | for (auto &w : workers_) { |
| | | if (w.joinable()) { |
| | | w.join(); |
| | | } |
| | | } |
| | | workers_.clear(); |
| | | return true; |
| | | } |
| | | return false; |
| | | } |
| | | |
| | | bool ShmSocket::Send(const MQInfo &remote, std::string &&content, const std::string &msg_id, RecvCB &&cb) |
| | | { |
| | | size_t size = content.size(); |
| | | auto OnResult = [content = std::move(content), msg_id, remote, cb = std::move(cb), this](MsgI &msg) mutable { |
| | | if (!msg.Fill(content)) { return false; } |
| | | |
| | | try { |
| | | if (!cb) { |
| | | Send(remote, msg); |
| | | } else { |
| | | 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); |
| | | }; |
| | | Send(remote, msg, onExpireRemoveCB); |
| | | } |
| | | return true; |
| | | } catch (...) { |
| | | SetLastError(eError, "Send internal error."); |
| | | return false; |
| | | } |
| | | }; |
| | | #if 0 |
| | | // self alloc |
| | | MsgI msg; |
| | | if (msg.Make(size)) { |
| | | DEFER1(msg.Release()); |
| | | return OnResult(msg); |
| | | } |
| | | #else |
| | | // center alloc |
| | | return RequestAlloc(size, OnResult); |
| | | #endif |
| | | } |
| | | |
| | | bool ShmSocket::RequestAlloc(const int64_t size, std::function<void(MsgI &msg)> const &onResult) |
| | | { // 8bit size, 4bit socket index, 16bit proc index, 28bit id, ,4bit cmd+flag |
| | | // LOG_FUNCTION; |
| | | if (node_proc_index_ == -1 || socket_index_ == -1) { |
| | | return false; |
| | | } |
| | | int id = (++alloc_id_) & MaskBits(28); |
| | | int64_t cmd = (CalcAllocIndex(size) << 52) | |
| | | ((socket_index_ & MaskBits(4)) << 48) | |
| | | ((node_proc_index_ & MaskBits(16)) << 32) | |
| | | (id << 4) | |
| | | EncodeCmd(eCmdAllocRequest0); |
| | | auto rawCB = [onResult](ShmSocket &sock, int64_t &val) { |
| | | MsgI msg((val >> 32) & MaskBits(31)); |
| | | DEFER1(msg.Release()); |
| | | onResult(msg); |
| | | return true; |
| | | }; |
| | | |
| | | alloc_cbs_->Store(id, std::move(rawCB)); |
| | | auto onExpireRemoveCB = [this, id](SendQ::Data const &msg) { |
| | | RawRecvCB cb_no_use; |
| | | alloc_cbs_->Pick(id, cb_no_use); |
| | | }; |
| | | |
| | | return Send(BHTopicCenterAddress(), cmd, onExpireRemoveCB); |
| | | } |