make req/rep,sub/pub sockets sub class;
| | |
| | | #include "bh_util.h" |
| | | #include "defs.h" |
| | | |
| | | namespace bhome_shm |
| | | { |
| | | |
| | | using namespace std::chrono_literals; |
| | | const int kMaxWorker = 16; |
| | | using namespace bhome_msg; |
| | | |
| | | BusManager::BusManager(SharedMemory &shm) : |
| | | shm_(shm), socket_(ShmSocket::eSockBus, shm) {} |
| | | BusManager::BusManager() : |
| | | BusManager(BHomeShm()) {} |
| | | |
| | | bool BusManager::Start(const int nworker) |
| | | bool SocketPublish::Publish(const std::string &topic, const void *data, const size_t size, const int timeout_ms) |
| | | { |
| | | auto onRecv = [&](MsgI &imsg) { |
| | | #ifndef NDEBUG |
| | | static std::atomic<time_t> last(0); |
| | | time_t now = 0; |
| | | time(&now); |
| | | if (last.exchange(now) < now) { |
| | | printf("bus queue size: %ld\n", socket_.Pending()); |
| | | try { |
| | | MsgI imsg; |
| | | if (!imsg.MakeRC(shm(), MakePub(topic, data, size))) { |
| | | return false; |
| | | } |
| | | #endif |
| | | DEFER1(imsg.Release(shm())); |
| | | return ShmMsgQueue::Send(shm(), kBHBusQueueId, imsg, timeout_ms); |
| | | } catch (...) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | BHMsg msg; |
| | | if (!imsg.Unpack(msg)) { |
| | | return; |
| | | } |
| | | bool SocketSubscribe::Subscribe(const std::vector<std::string> &topics, const int timeout_ms) |
| | | { |
| | | try { |
| | | return mq().Send(kBHBusQueueId, MakeSub(mq().Id(), topics), timeout_ms); |
| | | } catch (...) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | auto OnSubChange = [&](auto &&update) { |
| | | DataSub sub; |
| | | if (!msg.route().empty() && sub.ParseFromString(msg.body()) && !sub.topics().empty()) { |
| | | assert(sizeof(MQId) == msg.route(0).mq_id().size()); |
| | | MQId client; |
| | | memcpy(&client, msg.route(0).mq_id().data(), sizeof(client)); |
| | | |
| | | std::lock_guard<std::mutex> guard(mutex_); |
| | | auto &topics = sub.topics(); |
| | | for (auto &topic : topics) { |
| | | try { |
| | | update(topic, client); |
| | | } catch (...) { |
| | | //TODO log error |
| | | } |
| | | } |
| | | bool SocketSubscribe::StartRecv(const TopicDataCB &tdcb, int nworker) |
| | | { |
| | | auto AsyncRecvProc = [this, tdcb](BHMsg &msg) { |
| | | if (msg.type() == kMsgTypePublish) { |
| | | DataPub d; |
| | | if (d.ParseFromString(msg.body())) { |
| | | tdcb(d.topic(), d.data()); |
| | | } |
| | | }; |
| | | |
| | | auto Sub1 = [this](const std::string &topic, const MQId &id) { |
| | | records_[topic].insert(id); |
| | | }; |
| | | |
| | | auto Unsub1 = [this](const std::string &topic, const MQId &id) { |
| | | auto pos = records_.find(topic); |
| | | if (pos != records_.end()) { |
| | | if (pos->second.erase(id) && pos->second.empty()) { |
| | | records_.erase(pos); |
| | | } |
| | | } |
| | | }; |
| | | |
| | | auto OnPublish = [&]() { |
| | | DataPub pub; |
| | | if (!pub.ParseFromString(msg.body())) { |
| | | return; |
| | | } |
| | | auto FindClients = [&](const std::string &topic) { |
| | | Clients dests; |
| | | std::lock_guard<std::mutex> guard(mutex_); |
| | | auto Find1 = [&](const std::string &t) { |
| | | auto pos = records_.find(topic); |
| | | if (pos != records_.end() && !pos->second.empty()) { |
| | | auto &clients = pos->second; |
| | | for (auto &cli : clients) { |
| | | dests.insert(cli); |
| | | } |
| | | } |
| | | }; |
| | | Find1(topic); |
| | | |
| | | //TODO check and adjust topic on client side sub/pub. |
| | | size_t pos = 0; |
| | | while (true) { |
| | | pos = topic.find(kTopicSep, pos); |
| | | if (pos == topic.npos || ++pos == topic.size()) { |
| | | // Find1(std::string()); // sub all. |
| | | break; |
| | | } else { |
| | | Find1(topic.substr(0, pos)); |
| | | } |
| | | } |
| | | return dests; |
| | | }; |
| | | |
| | | auto Dispatch = [&](auto &&send1) { |
| | | const Clients &clients(FindClients(pub.topic())); |
| | | for (auto &cli : clients) { |
| | | send1(cli); |
| | | } |
| | | }; |
| | | |
| | | if (imsg.IsCounted()) { |
| | | Dispatch([&](const MQId &cli) { ShmMsgQueue::Send(shm_, cli, imsg, 100); }); |
| | | } else { |
| | | MsgI pubmsg; |
| | | if (!pubmsg.MakeRC(shm_, msg)) { return; } |
| | | DEFER1(pubmsg.Release(shm_)); |
| | | |
| | | Dispatch([&](const MQId &cli) { ShmMsgQueue::Send(shm_, cli, pubmsg, 100); }); |
| | | } |
| | | }; |
| | | |
| | | switch (msg.type()) { |
| | | case kMsgTypeSubscribe: OnSubChange(Sub1); break; |
| | | case kMsgTypeUnsubscribe: OnSubChange(Unsub1); break; |
| | | case kMsgTypePublish: OnPublish(); break; |
| | | default: break; |
| | | } else { |
| | | // ignored, or dropped |
| | | } |
| | | }; |
| | | |
| | | return socket_.StartRaw(onRecv, std::min((nworker > 0 ? nworker : 2), kMaxWorker)); |
| | | return tdcb && Start(AsyncRecvProc, nworker); |
| | | } |
| | | |
| | | } // namespace bhome_shm |
| | | bool SocketSubscribe::RecvSub(std::string &topic, std::string &data, const int timeout_ms) |
| | | { |
| | | BHMsg msg; |
| | | if (SyncRecv(msg, timeout_ms) && msg.type() == kMsgTypePublish) { |
| | | DataPub d; |
| | | if (d.ParseFromString(msg.body())) { |
| | | d.mutable_topic()->swap(topic); |
| | | d.mutable_data()->swap(data); |
| | | return true; |
| | | } |
| | | } |
| | | return false; |
| | | } |
| | |
| | | #ifndef PUBSUB_4KGRA997 |
| | | #define PUBSUB_4KGRA997 |
| | | |
| | | #include "defs.h" |
| | | #include "socket.h" |
| | | #include <mutex> |
| | | #include <set> |
| | | #include <unordered_map> |
| | | #include <string> |
| | | |
| | | namespace bhome_shm |
| | | class SocketPublish |
| | | { |
| | | |
| | | // publish/subcribe manager. |
| | | class BusManager |
| | | { |
| | | SharedMemory &shm_; |
| | | ShmSocket socket_; |
| | | std::mutex mutex_; |
| | | typedef std::set<MQId> Clients; |
| | | std::unordered_map<std::string, Clients> records_; |
| | | typedef ShmSocket Socket; |
| | | Socket::Shm &shm_; |
| | | Socket::Shm &shm() { return shm_; } |
| | | |
| | | public: |
| | | BusManager(SharedMemory &shm); |
| | | BusManager(); |
| | | ~BusManager() { Stop(); } |
| | | bool Start(const int nworker = 2); |
| | | bool Stop() { return socket_.Stop(); } |
| | | SocketPublish(Socket::Shm &shm) : |
| | | shm_(shm) {} |
| | | SocketPublish() : |
| | | SocketPublish(BHomeShm()) {} |
| | | bool Publish(const std::string &topic, const void *data, const size_t size, const int timeout_ms); |
| | | bool Publish(const std::string &topic, const std::string &data, const int timeout_ms) |
| | | { |
| | | return Publish(topic, data.data(), data.size(), timeout_ms); |
| | | } |
| | | }; |
| | | |
| | | } // namespace bhome_shm |
| | | // socket subscribe |
| | | class SocketSubscribe : private ShmSocket |
| | | { |
| | | typedef ShmSocket Socket; |
| | | |
| | | public: |
| | | SocketSubscribe(Socket::Shm &shm) : |
| | | Socket(shm, 64) {} |
| | | SocketSubscribe() : |
| | | SocketSubscribe(BHomeShm()) {} |
| | | |
| | | typedef std::function<void(const std::string &topic, const std::string &data)> TopicDataCB; |
| | | bool StartRecv(const TopicDataCB &tdcb, int nworker = 2); |
| | | bool Subscribe(const std::vector<std::string> &topics, const int timeout_ms); |
| | | bool RecvSub(std::string &topic, std::string &data, const int timeout_ms); |
| | | }; |
| | | |
| | | #endif // end of include guard: PUBSUB_4KGRA997 |
New file |
| | |
| | | /* |
| | | * ===================================================================================== |
| | | * |
| | | * Filename: pubsub_center.cpp |
| | | * |
| | | * Description: pub/sub center/manager |
| | | * |
| | | * Version: 1.0 |
| | | * Created: 2021年04月01日 09时29分04秒 |
| | | * Revision: none |
| | | * Compiler: gcc |
| | | * |
| | | * Author: Li Chao (), |
| | | * Organization: |
| | | * |
| | | * ===================================================================================== |
| | | */ |
| | | #include "pubsub_center.h" |
| | | #include "bh_util.h" |
| | | |
| | | PubSubCenter::PubSubCenter(SharedMemory &shm) : |
| | | socket_(shm) {} |
| | | |
| | | bool PubSubCenter::Start(const int nworker) |
| | | { |
| | | auto onRecv = [&](MsgI &imsg) { |
| | | #ifndef NDEBUG |
| | | static std::atomic<time_t> last(0); |
| | | time_t now = 0; |
| | | time(&now); |
| | | if (last.exchange(now) < now) { |
| | | printf("bus queue size: %ld\n", socket_.Pending()); |
| | | } |
| | | #endif |
| | | |
| | | BHMsg msg; |
| | | if (!imsg.Unpack(msg)) { |
| | | return; |
| | | } |
| | | |
| | | auto OnSubChange = [&](auto &&update) { |
| | | DataSub sub; |
| | | if (!msg.route().empty() && sub.ParseFromString(msg.body()) && !sub.topics().empty()) { |
| | | assert(sizeof(MQId) == msg.route(0).mq_id().size()); |
| | | MQId client; |
| | | memcpy(&client, msg.route(0).mq_id().data(), sizeof(client)); |
| | | |
| | | std::lock_guard<std::mutex> guard(mutex_); |
| | | auto &topics = sub.topics(); |
| | | for (auto &topic : topics) { |
| | | try { |
| | | update(topic, client); |
| | | } catch (...) { |
| | | //TODO log error |
| | | } |
| | | } |
| | | } |
| | | }; |
| | | |
| | | auto Sub1 = [this](const std::string &topic, const MQId &id) { |
| | | records_[topic].insert(id); |
| | | }; |
| | | |
| | | auto Unsub1 = [this](const std::string &topic, const MQId &id) { |
| | | auto pos = records_.find(topic); |
| | | if (pos != records_.end()) { |
| | | if (pos->second.erase(id) && pos->second.empty()) { |
| | | records_.erase(pos); |
| | | } |
| | | } |
| | | }; |
| | | |
| | | auto OnPublish = [&]() { |
| | | DataPub pub; |
| | | if (!pub.ParseFromString(msg.body())) { |
| | | return; |
| | | } |
| | | auto FindClients = [&](const std::string &topic) { |
| | | Clients dests; |
| | | std::lock_guard<std::mutex> guard(mutex_); |
| | | auto Find1 = [&](const std::string &t) { |
| | | auto pos = records_.find(topic); |
| | | if (pos != records_.end() && !pos->second.empty()) { |
| | | auto &clients = pos->second; |
| | | for (auto &cli : clients) { |
| | | dests.insert(cli); |
| | | } |
| | | } |
| | | }; |
| | | Find1(topic); |
| | | |
| | | //TODO check and adjust topic on client side sub/pub. |
| | | size_t pos = 0; |
| | | while (true) { |
| | | pos = topic.find(kTopicSep, pos); |
| | | if (pos == topic.npos || ++pos == topic.size()) { |
| | | // Find1(std::string()); // sub all. |
| | | break; |
| | | } else { |
| | | Find1(topic.substr(0, pos)); |
| | | } |
| | | } |
| | | return dests; |
| | | }; |
| | | |
| | | auto Dispatch = [&](auto &&send1) { |
| | | const Clients &clients(FindClients(pub.topic())); |
| | | for (auto &cli : clients) { |
| | | send1(cli); |
| | | } |
| | | }; |
| | | |
| | | if (imsg.IsCounted()) { |
| | | Dispatch([&](const MQId &cli) { ShmMsgQueue::Send(shm(), cli, imsg, 100); }); |
| | | } else { |
| | | MsgI pubmsg; |
| | | if (!pubmsg.MakeRC(shm(), msg)) { return; } |
| | | DEFER1(pubmsg.Release(shm())); |
| | | |
| | | Dispatch([&](const MQId &cli) { ShmMsgQueue::Send(shm(), cli, pubmsg, 100); }); |
| | | } |
| | | }; |
| | | |
| | | switch (msg.type()) { |
| | | case kMsgTypeSubscribe: OnSubChange(Sub1); break; |
| | | case kMsgTypeUnsubscribe: OnSubChange(Unsub1); break; |
| | | case kMsgTypePublish: OnPublish(); break; |
| | | default: break; |
| | | } |
| | | }; |
| | | |
| | | const int kMaxWorker = 16; |
| | | return socket_.StartRaw(onRecv, std::min((nworker > 0 ? nworker : 2), kMaxWorker)); |
| | | } |
New file |
| | |
| | | /* |
| | | * ===================================================================================== |
| | | * |
| | | * Filename: pubsub_center.h |
| | | * |
| | | * Description: |
| | | * |
| | | * Version: 1.0 |
| | | * Created: 2021年04月01日 09时29分39秒 |
| | | * Revision: none |
| | | * Compiler: gcc |
| | | * |
| | | * Author: Li Chao (), |
| | | * Organization: |
| | | * |
| | | * ===================================================================================== |
| | | */ |
| | | #ifndef PUBSUB_CENTER_MFSUZJU7 |
| | | #define PUBSUB_CENTER_MFSUZJU7 |
| | | |
| | | #include "defs.h" |
| | | #include "socket.h" |
| | | #include <mutex> |
| | | #include <set> |
| | | #include <unordered_map> |
| | | using namespace bhome_shm; |
| | | |
| | | // publish/subcribe manager. |
| | | class PubSubCenter |
| | | { |
| | | class SocketBus : public ShmSocket |
| | | { |
| | | public: |
| | | SocketBus(SharedMemory &shm) : |
| | | ShmSocket(shm, &kBHBusQueueId, 1000) {} |
| | | using ShmSocket::shm; |
| | | }; |
| | | SocketBus socket_; |
| | | std::mutex mutex_; |
| | | typedef std::set<MQId> Clients; |
| | | std::unordered_map<std::string, Clients> records_; |
| | | ShmSocket::Shm &shm() { return socket_.shm(); } |
| | | |
| | | public: |
| | | PubSubCenter(SharedMemory &shm); |
| | | PubSubCenter() : |
| | | PubSubCenter(BHomeShm()) {} |
| | | ~PubSubCenter() { Stop(); } |
| | | bool Start(const int nworker = 2); |
| | | bool Stop() { return socket_.Stop(); } |
| | | }; |
| | | |
| | | #endif // end of include guard: PUBSUB_CENTER_MFSUZJU7 |
New file |
| | |
| | | /* |
| | | * ===================================================================================== |
| | | * |
| | | * Filename: reqrep.cpp |
| | | * |
| | | * Description: topic request/reply sockets |
| | | * |
| | | * Version: 1.0 |
| | | * Created: 2021年04月01日 09时35分35秒 |
| | | * Revision: none |
| | | * Compiler: gcc |
| | | * |
| | | * Author: Li Chao (), |
| | | * Organization: |
| | | * |
| | | * ===================================================================================== |
| | | */ |
| | | #include "reqrep.h" |
| | | #include "msg.h" |
| | | #include <chrono> |
| | | #include <condition_variable> |
| | | |
| | | using namespace bhome_msg; |
| | | |
| | | bool SocketRequest::StartWorker(const RequestResultCB &rrcb, int nworker) |
| | | { |
| | | auto AsyncRecvProc = [this, rrcb](BHMsg &msg) { |
| | | auto Find = [&](RecvCB &cb) { |
| | | std::lock_guard<std::mutex> lock(mutex()); |
| | | const std::string &msgid = msg.msg_id(); |
| | | auto pos = async_cbs_.find(msgid); |
| | | if (pos != async_cbs_.end()) { |
| | | cb.swap(pos->second); |
| | | async_cbs_.erase(pos); |
| | | return true; |
| | | } else { |
| | | return false; |
| | | } |
| | | }; |
| | | |
| | | RecvCB cb; |
| | | if (Find(cb) && cb) { |
| | | cb(msg); |
| | | } else if (rrcb && msg.type() == kMsgTypeReply) { |
| | | DataReply reply; |
| | | if (reply.ParseFromString(msg.body())) { |
| | | rrcb(reply.data()); |
| | | } |
| | | } else { |
| | | // ignored, or dropped |
| | | } |
| | | }; |
| | | |
| | | return Start(AsyncRecvProc, nworker); |
| | | } |
| | | |
| | | bool SocketRequest::AsyncRequest(const std::string &topic, const void *data, const size_t size, const int timeout_ms, const RequestResultCB &cb) |
| | | { |
| | | auto Call = [&](const void *remote) { |
| | | const BHMsg &msg(MakeRequest(mq().Id(), topic, data, size)); |
| | | auto onRecv = [cb](BHMsg &msg) { |
| | | if (msg.type() == kMsgTypeReply) { |
| | | DataReply reply; |
| | | if (reply.ParseFromString(msg.body())) { |
| | | cb(reply.data()); |
| | | } |
| | | } |
| | | }; |
| | | return AsyncSend(remote, &msg, timeout_ms, onRecv); |
| | | }; |
| | | |
| | | try { |
| | | BHAddress addr; |
| | | if (QueryRPCTopic(topic, addr, timeout_ms)) { |
| | | return Call(addr.mq_id().data()); |
| | | } |
| | | } catch (...) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | bool SocketRequest::SyncRequest(const std::string &topic, const void *data, const size_t size, const int timeout_ms, std::string &out) |
| | | { |
| | | try { |
| | | BHAddress addr; |
| | | if (QueryRPCTopic(topic, addr, timeout_ms)) { |
| | | const BHMsg &msg(MakeRequest(mq().Id(), topic, data, size)); |
| | | BHMsg reply; |
| | | if (SyncSendAndRecv(addr.mq_id().data(), &msg, &reply, timeout_ms) && reply.type() == kMsgTypeReply) { |
| | | DataReply dr; |
| | | if (dr.ParseFromString(msg.body())) { |
| | | dr.mutable_data()->swap(out); |
| | | return true; |
| | | } |
| | | } |
| | | } |
| | | } catch (...) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | bool SocketRequest::AsyncSend(const void *remote, const void *pmsg, const int timeout_ms, const RecvCB &cb) |
| | | { |
| | | assert(remote && pmsg); |
| | | try { |
| | | const BHMsg &msg = *static_cast<const BHMsg *>(pmsg); |
| | | auto RegisterCB = [&]() { |
| | | std::lock_guard<std::mutex> lock(mutex()); |
| | | async_cbs_.emplace(msg.msg_id(), cb); |
| | | }; |
| | | |
| | | return mq().Send(*static_cast<const MQId *>(remote), msg, timeout_ms, RegisterCB); |
| | | } catch (...) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | bool SocketRequest::SyncSendAndRecv(const void *remote, const void *msg, void *result, const int timeout_ms) |
| | | { |
| | | struct State { |
| | | std::mutex mutex; |
| | | std::condition_variable cv; |
| | | bool canceled = false; |
| | | }; |
| | | |
| | | try { |
| | | std::shared_ptr<State> st(new State); |
| | | auto endtime = std::chrono::steady_clock::now() + std::chrono::milliseconds(timeout_ms); |
| | | |
| | | auto OnRecv = [=](BHMsg &msg) { |
| | | std::unique_lock<std::mutex> lk(st->mutex); |
| | | if (!st->canceled) { |
| | | static_cast<BHMsg *>(result)->Swap(&msg); |
| | | st->cv.notify_one(); |
| | | } // else result is no longer valid. |
| | | }; |
| | | |
| | | std::unique_lock<std::mutex> lk(st->mutex); |
| | | if (AsyncSend(remote, msg, timeout_ms, OnRecv) && st->cv.wait_until(lk, endtime) == std::cv_status::no_timeout) { |
| | | return true; |
| | | } else { |
| | | st->canceled = true; |
| | | return false; |
| | | } |
| | | } catch (...) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | bool SocketRequest::QueryRPCTopic(const std::string &topic, bhome::msg::BHAddress &addr, const int timeout_ms) |
| | | { |
| | | BHMsg result; |
| | | const BHMsg &msg = MakeQueryTopic(topic); |
| | | if (SyncSendAndRecv(&kBHTopicRPCId, &msg, &result, timeout_ms)) { |
| | | if (result.type() == kMsgTypeQueryTopicReply) { |
| | | DataQueryTopicReply reply; |
| | | if (reply.ParseFromString(result.body())) { |
| | | addr = reply.address(); |
| | | return !addr.mq_id().empty(); |
| | | } |
| | | } |
| | | } |
| | | return false; |
| | | } |
New file |
| | |
| | | /* |
| | | * ===================================================================================== |
| | | * |
| | | * Filename: reqrep.h |
| | | * |
| | | * Description: topic request/reply sockets |
| | | * |
| | | * Version: 1.0 |
| | | * Created: 2021年04月01日 09时36分06秒 |
| | | * Revision: none |
| | | * Compiler: gcc |
| | | * |
| | | * Author: Li Chao (), |
| | | * Organization: |
| | | * |
| | | * ===================================================================================== |
| | | */ |
| | | #ifndef REQREP_ACEH09NK |
| | | #define REQREP_ACEH09NK |
| | | |
| | | #include "defs.h" |
| | | #include "socket.h" |
| | | #include <functional> |
| | | #include <unordered_map> |
| | | |
| | | class SocketRequest : private ShmSocket |
| | | { |
| | | typedef ShmSocket Socket; |
| | | |
| | | public: |
| | | SocketRequest(Socket::Shm &shm) : |
| | | Socket(shm, 64) { StartWorker(); } |
| | | SocketRequest() : |
| | | SocketRequest(BHomeShm()) {} |
| | | |
| | | typedef std::function<void(const std::string &data)> RequestResultCB; |
| | | bool StartWorker(const RequestResultCB &rrcb, int nworker = 2); |
| | | bool StartWorker(int nworker = 2) { return StartWorker(RequestResultCB(), nworker); } |
| | | bool AsyncRequest(const std::string &topic, const void *data, const size_t size, const int timeout_ms, const RequestResultCB &rrcb); |
| | | bool AsyncRequest(const std::string &topic, const std::string &data, const int timeout_ms, const RequestResultCB &rrcb) |
| | | { |
| | | return AsyncRequest(topic, data.data(), data.size(), timeout_ms, rrcb); |
| | | } |
| | | bool SyncRequest(const std::string &topic, const void *data, const size_t size, const int timeout_ms, std::string &out); |
| | | bool SyncRequest(const std::string &topic, const std::string &data, const int timeout_ms, std::string &out) |
| | | { |
| | | return SyncRequest(topic, data.data(), data.size(), timeout_ms, out); |
| | | } |
| | | |
| | | private: |
| | | bool AsyncSend(const void *remote, const void *msg, const int timeout_ms, const RecvCB &cb); |
| | | bool SyncSendAndRecv(const void *remote, const void *msg, void *result, const int timeout_ms); |
| | | bool QueryRPCTopic(const std::string &topic, bhome::msg::BHAddress &addr, const int timeout_ms); |
| | | std::unordered_map<std::string, RecvCB> async_cbs_; |
| | | }; |
| | | |
| | | #endif // end of include guard: REQREP_ACEH09NK |
| | |
| | | #include "bh_util.h" |
| | | #include "defs.h" |
| | | #include "msg.h" |
| | | #include <chrono> |
| | | #include <condition_variable> |
| | | |
| | | using namespace bhome_msg; |
| | | using namespace bhome_shm; |
| | |
| | | |
| | | } // namespace |
| | | |
| | | //TODO maybe change to base class, each type is a sub class. |
| | | |
| | | ShmSocket::ShmSocket(Type type, bhome_shm::SharedMemory &shm) : |
| | | shm_(shm), type_(type), run_(false) |
| | | ShmSocket::ShmSocket(Shm &shm, const void *id, const int len) : |
| | | shm_(shm), run_(false) |
| | | { |
| | | switch (type) { |
| | | case eSockBus: mq_.reset(new Queue(kBHBusQueueId, shm_, 1000)); break; |
| | | case eSockRequest: mq_.reset(new Queue(shm_, 12)); break; |
| | | case eSockReply: mq_.reset(new Queue(shm_, 64)); break; |
| | | case eSockSubscribe: mq_.reset(new Queue(shm_, 64)); break; |
| | | case eSockPublish: break; // no recv mq needed |
| | | default: break; |
| | | if (id && len > 0) { |
| | | mq_.reset(new Queue(*static_cast<const MQId *>(id), shm, len)); |
| | | } |
| | | } |
| | | |
| | | ShmSocket::ShmSocket(Type type) : |
| | | ShmSocket(type, BHomeShm()) {} |
| | | ShmSocket::ShmSocket(bhome_shm::SharedMemory &shm, const int len) : |
| | | shm_(shm), run_(false) |
| | | { |
| | | if (len > 0) { |
| | | mq_.reset(new Queue(shm_, len)); |
| | | } |
| | | } |
| | | |
| | | 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; |
| | | } |
| | | 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::StartRaw(const RecvRawCB &onData, int nworker) |
| | | { |
| | | auto CanRecv = [this]() { |
| | | switch (type_) { |
| | | case eSockRequest: |
| | | case eSockReply: |
| | | case eSockBus: |
| | | case eSockSubscribe: |
| | | return true; |
| | | default: |
| | | return false; |
| | | } |
| | | }; |
| | | if (!CanRecv()) { |
| | | if (!mq_) { |
| | | return false; |
| | | } |
| | | std::lock_guard<std::mutex> lock(mutex_); |
| | | |
| | | std::lock_guard<std::mutex> lock(mutex_); |
| | | StopNoLock(); |
| | | auto RecvProc = [this, onData]() { |
| | | while (run_) { |
| | |
| | | return StartRaw([this, onData](MsgI &imsg) { BHMsg m; if (imsg.Unpack(m)) { onData(m); } }, nworker); |
| | | } |
| | | |
| | | bool ShmSocket::StartAsync(int nworker) |
| | | { |
| | | auto AsyncRecvProc = [this](BHMsg &msg) { |
| | | auto Find = [&](RecvCB &cb) { |
| | | std::lock_guard<std::mutex> lock(mutex_); |
| | | const std::string &msgid = msg.msg_id(); |
| | | auto pos = async_cbs_.find(msgid); |
| | | if (pos != async_cbs_.end()) { |
| | | cb.swap(pos->second); |
| | | async_cbs_.erase(pos); |
| | | return true; |
| | | } else { |
| | | return false; |
| | | } |
| | | }; |
| | | |
| | | RecvCB cb; |
| | | if (Find(cb) && cb) { |
| | | cb(msg); |
| | | } |
| | | }; |
| | | |
| | | return Start(AsyncRecvProc, nworker); |
| | | } |
| | | |
| | | bool ShmSocket::Stop() |
| | | { |
| | | std::lock_guard<std::mutex> lock(mutex_); |
| | |
| | | w.join(); |
| | | } |
| | | } |
| | | workers_.clear(); |
| | | return true; |
| | | } |
| | | return false; |
| | | } |
| | | |
| | | bool ShmSocket::AsyncRequest(const void *remote, const void *pmsg, const int timeout_ms, const RecvCB &cb) |
| | | bool ShmSocket::SyncSend(const void *id, const bhome_msg::BHMsg &msg, const int timeout_ms) |
| | | { |
| | | if (type_ != eSockRequest) { |
| | | std::lock_guard<std::mutex> lock(mutex_); |
| | | if (!mq_ || RunningNoLock()) { |
| | | return false; |
| | | } |
| | | assert(remote && pmsg && !mq_); |
| | | try { |
| | | const BHMsg &msg = *static_cast<const BHMsg *>(pmsg); |
| | | auto RegisterCB = [&]() { |
| | | std::lock_guard<std::mutex> lock(mutex_); |
| | | async_cbs_.emplace(msg.msg_id(), cb); |
| | | }; |
| | | |
| | | return mq_->Send(*static_cast<const MQId *>(remote), msg, timeout_ms, RegisterCB); |
| | | } catch (...) { |
| | | return false; |
| | | } else { |
| | | return mq_->Send(*static_cast<const MQId *>(id), msg, timeout_ms); |
| | | } |
| | | } |
| | | |
| | | bool ShmSocket::SyncRequest(const void *remote, const void *msg, void *result, const int timeout_ms) |
| | | bool ShmSocket::SyncRecv(bhome_msg::BHMsg &msg, const int timeout_ms) |
| | | { |
| | | struct State { |
| | | std::mutex mutex; |
| | | std::condition_variable cv; |
| | | bool canceled = false; |
| | | }; |
| | | |
| | | try { |
| | | std::shared_ptr<State> st(new State); |
| | | auto OnRecv = [=](BHMsg &msg) { |
| | | std::unique_lock<std::mutex> lk(st->mutex); |
| | | if (!st->canceled) { |
| | | static_cast<BHMsg *>(result)->Swap(&msg); |
| | | st->cv.notify_one(); |
| | | } |
| | | }; |
| | | |
| | | std::unique_lock<std::mutex> lk(st->mutex); |
| | | auto end = std::chrono::steady_clock::now() + std::chrono::milliseconds(timeout_ms); |
| | | if (AsyncRequest(remote, msg, timeout_ms, OnRecv) && st->cv.wait_until(lk, end) == std::cv_status::no_timeout) { |
| | | return true; |
| | | } else { |
| | | st->canceled = true; |
| | | return false; |
| | | } |
| | | } catch (...) { |
| | | std::lock_guard<std::mutex> lock(mutex_); |
| | | if (!mq_ || RunningNoLock()) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | bool ShmSocket::QueryRPCTopic(const std::string &topic, bhome::msg::BHAddress &addr, const int timeout_ms) |
| | | { |
| | | BHMsg result; |
| | | const BHMsg &msg = MakeQueryTopic(topic); |
| | | if (SyncRequest(&kBHTopicRPCId, &msg, &result, timeout_ms)) { |
| | | if (result.type() == kMsgTypeQueryTopicReply) { |
| | | DataQueryTopicReply reply; |
| | | if (reply.ParseFromString(result.body())) { |
| | | addr = reply.address(); |
| | | return !addr.mq_id().empty(); |
| | | } |
| | | } |
| | | } |
| | | return false; |
| | | } |
| | | |
| | | bool ShmSocket::RequestRPC(const std::string &topic, const void *data, const size_t size, const int timeout_ms, const RequestResultCB &cb) |
| | | { |
| | | auto Call = [&](const void *remote) { |
| | | const BHMsg &msg(MakeRequest(mq_->Id(), topic, data, size)); |
| | | auto onRecv = [cb](BHMsg &msg) { |
| | | if (msg.type() == kMsgTypeReply) { |
| | | DataReply reply; |
| | | if (reply.ParseFromString(msg.body())) { |
| | | cb(reply.data().data(), reply.data().size()); |
| | | } |
| | | } |
| | | }; |
| | | return AsyncRequest(remote, &msg, timeout_ms, onRecv); |
| | | }; |
| | | |
| | | try { |
| | | BHAddress addr; |
| | | if (QueryRPCTopic(topic, addr, timeout_ms)) { |
| | | return Call(addr.mq_id().data()); |
| | | } |
| | | } catch (...) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | bool ShmSocket::RequestRPC(const std::string &topic, const void *data, const size_t size, const int timeout_ms, std::string &out) |
| | | { |
| | | try { |
| | | BHAddress addr; |
| | | if (QueryRPCTopic(topic, addr, timeout_ms)) { |
| | | const BHMsg &msg(MakeRequest(mq_->Id(), topic, data, size)); |
| | | BHMsg reply; |
| | | if (SyncRequest(addr.mq_id().data(), &msg, &reply, timeout_ms) && reply.type() == kMsgTypeReply) { |
| | | DataReply dr; |
| | | if (dr.ParseFromString(msg.body())) { |
| | | dr.mutable_data()->swap(out); |
| | | return true; |
| | | } |
| | | } |
| | | } |
| | | } catch (...) { |
| | | return false; |
| | | } else { |
| | | return mq_->Recv(msg, timeout_ms); |
| | | } |
| | | } |
| | |
| | | #include <memory> |
| | | #include <mutex> |
| | | #include <thread> |
| | | #include <unordered_map> |
| | | #include <vector> |
| | | |
| | | class ShmSocket : private boost::noncopyable |
| | | { |
| | | protected: |
| | | typedef bhome_shm::ShmMsgQueue Queue; |
| | | |
| | | public: |
| | | enum Type { |
| | | eSockRequest, |
| | | eSockReply, |
| | | eSockSubscribe, |
| | | eSockPublish, |
| | | eSockBus, |
| | | }; |
| | | typedef bhome_shm::SharedMemory Shm; |
| | | typedef std::function<void(bhome_msg::BHMsg &msg)> RecvCB; |
| | | typedef std::function<void(bhome_msg::MsgI &imsg)> RecvRawCB; |
| | | typedef std::function<void(const void *data, const size_t size)> RequestResultCB; |
| | | |
| | | ShmSocket(Type type, bhome_shm::SharedMemory &shm); |
| | | ShmSocket(Type type); |
| | | ShmSocket(Shm &shm, const int len = 12); |
| | | ~ShmSocket(); |
| | | bool RequestRPC(const std::string &topic, const void *data, const size_t size, const int timeout_ms, const RequestResultCB &rrcb); |
| | | bool RequestRPC(const std::string &topic, const void *data, const size_t size, const int timeout_ms, std::string &out); |
| | | |
| | | // bool HandleRequest(onData); |
| | | bool ReadRequest(); // exclude with HandleRequest |
| | | bool SendReply(); // exclude with HandleRequest |
| | | |
| | | bool Publish(const std::string &topic, const void *data, const size_t size, const int timeout_ms); |
| | | bool Subscribe(const std::vector<std::string> &topics, const int timeout_ms); |
| | | bool RecvSub(std::string &topic, std::string &data, const int timeout_ms); |
| | | |
| | | // start recv. |
| | | bool Start(const RecvCB &onData, int nworker = 1); |
| | | bool StartRaw(const RecvRawCB &onData, int nworker = 1); |
| | | bool StartAsync(int nworker = 2); |
| | | bool Stop(); |
| | | size_t Pending() const { return mq_ ? mq_->Pending() : 0; } |
| | | |
| | | protected: |
| | | ShmSocket(Shm &shm, const void *id, const int len); |
| | | Shm &shm() { return shm_; } |
| | | 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 SyncSend(const void *id, const bhome_msg::BHMsg &msg, const int timeout_ms); |
| | | bool SyncRecv(bhome_msg::BHMsg &msg, const int timeout_ms); |
| | | |
| | | private: |
| | | bool AsyncRequest(const void *remote, const void *msg, const int timeout_ms, const RecvCB &cb); |
| | | bool SyncRequest(const void *remote, const void *msg, void *result, const int timeout_ms); |
| | | bool QueryRPCTopic(const std::string &topic, bhome::msg::BHAddress &addr, const int timeout_ms); |
| | | bool StopNoLock(); |
| | | bhome_shm::SharedMemory &shm_; |
| | | const Type type_; |
| | | bool RunningNoLock() { return !workers_.empty(); } |
| | | |
| | | Shm &shm_; |
| | | std::vector<std::thread> workers_; |
| | | std::mutex mutex_; |
| | | std::atomic<bool> run_; |
| | | |
| | | std::unique_ptr<Queue> mq_; |
| | | std::unordered_map<std::string, RecvCB> async_cbs_; |
| | | }; |
| | | |
| | | #endif // end of include guard: SOCKET_GWTJHBPO |
| | |
| | | #include "defs.h" |
| | | #include "pubsub.h" |
| | | #include "pubsub_center.h" |
| | | #include "socket.h" |
| | | #include "util.h" |
| | | #include <atomic> |
| | |
| | | BOOST_AUTO_TEST_CASE(PubSubTest) |
| | | { |
| | | const std::string shm_name("ShmPubSub"); |
| | | // ShmRemover auto_remove(shm_name); //remove twice? in case of killed? |
| | | ShmRemover auto_remove(shm_name); //remove twice? in case of killed? |
| | | SharedMemory shm(shm_name, 1024 * 1024 * 50); |
| | | DEFER1(shm.Remove()); |
| | | auto Avail = [&]() { return shm.get_free_memory(); }; |
| | |
| | | printf("flag = %d\n", *flag); |
| | | ++*flag; |
| | | |
| | | BusManager bus(shm); |
| | | PubSubCenter bus(shm); |
| | | bus.Start(); |
| | | |
| | | std::this_thread::sleep_for(100ms); |
| | | |
| | | std::atomic<uint64_t> count(0); |
| | | std::atomic<uint64_t> total_count(0); |
| | | std::atomic<ptime> last_time(Now() - seconds(1)); |
| | | std::atomic<uint64_t> last_count(0); |
| | | |
| | | const uint64_t nmsg = 100 * 2; |
| | | const int timeout = 1000; |
| | | auto Sub = [&](int id, const std::vector<std::string> &topics) { |
| | | ShmSocket client(ShmSocket::eSockSubscribe, shm); |
| | | SocketSubscribe client(shm); |
| | | bool r = client.Subscribe(topics, timeout); |
| | | std::mutex mutex; |
| | | std::condition_variable cv; |
| | | |
| | | uint64_t i = 0; |
| | | auto OnRecv = [&](BHMsg &msg) { |
| | | if (msg.type() != kMsgTypePublish) { |
| | | BOOST_CHECK(false); |
| | | } |
| | | DataPub pub; |
| | | if (!pub.ParseFromString(msg.body())) { |
| | | BOOST_CHECK(false); |
| | | } |
| | | ++count; |
| | | std::atomic<uint64_t> n(0); |
| | | auto OnTopicData = [&](const std::string &topic, const std::string &data) { |
| | | ++total_count; |
| | | |
| | | auto cur = Now(); |
| | | if (last_time.exchange(cur) < cur) { |
| | | std::cout << "time: " << cur; |
| | | printf("sub recv, total msg:%10ld, speed:[%8ld/s], used mem:%8ld \n", |
| | | count.load(), count - last_count.exchange(count), init_avail - Avail()); |
| | | total_count.load(), total_count - last_count.exchange(total_count), init_avail - Avail()); |
| | | } |
| | | if (++i >= nmsg * topics.size()) { |
| | | if (++n >= nmsg * topics.size()) { |
| | | cv.notify_one(); |
| | | } |
| | | // printf("sub %2d recv: %s/%s\n", id, pub.topic().c_str(), pub.data().c_str()); |
| | | }; |
| | | client.Start(OnRecv); |
| | | client.StartRecv(OnTopicData, 1); |
| | | |
| | | std::unique_lock<std::mutex> lk(mutex); |
| | | cv.wait(lk); |
| | | }; |
| | | |
| | | auto Pub = [&](const std::string &topic) { |
| | | ShmSocket provider(ShmSocket::eSockPublish, shm); |
| | | SocketPublish provider(shm); |
| | | for (unsigned i = 0; i < nmsg; ++i) { |
| | | std::string data = topic + std::to_string(i) + std::string(1000, '-'); |
| | | |
| | | bool r = provider.Publish(topic, data.data(), data.size(), timeout); |
| | | // bool r = provider.Send(kBHBusQueueId, MakePub(topic, data.data(), data.size()), timeout); |
| | | bool r = provider.Publish(topic, data, timeout); |
| | | if (!r) { |
| | | printf("pub ret: %s\n", r ? "ok" : "fail"); |
| | | } |
| | |
| | | threads.WaitAll(); |
| | | std::cout << "end : " << Now(); |
| | | printf("sub recv, total msg:%10ld, speed:[%8ld/s], used mem:%8ld \n", |
| | | count.load(), count - last_count.exchange(count), init_avail - Avail()); |
| | | total_count.load(), total_count - last_count.exchange(total_count), init_avail - Avail()); |
| | | |
| | | bus.Stop(); |
| | | } |