/*
|
* =====================================================================================
|
*
|
* Filename: topic_node.cpp
|
*
|
* Description:
|
*
|
* Version: 1.0
|
* Created: 2021年04月07日 09时01分48秒
|
* Revision: none
|
* Compiler: gcc
|
*
|
* Author: Li Chao (),
|
* Organization:
|
*
|
* =====================================================================================
|
*/
|
#include "topic_node.h"
|
#include "bh_util.h"
|
#include <chrono>
|
#include <list>
|
|
using namespace std::chrono;
|
using namespace std::chrono_literals;
|
|
namespace
|
{
|
inline void AddRoute(BHMsgHead &head, const MQId &id) { head.add_route()->set_mq_id(&id, sizeof(id)); }
|
|
struct SrcInfo {
|
std::vector<BHAddress> route;
|
std::string msg_id;
|
};
|
|
class ServerFailedQ
|
{
|
struct FailedMsg {
|
steady_clock::time_point xpr;
|
std::string remote_;
|
BHMsgHead head_;
|
MsgRequestTopicReply body_;
|
FailedMsg(const std::string &addr, BHMsgHead &&head, MsgRequestTopicReply &&body) :
|
xpr(steady_clock::now() + 10s), remote_(addr), head_(std::move(head)), body_(std::move(body)) {}
|
bool Expired() { return steady_clock::now() > xpr; }
|
};
|
typedef std::list<FailedMsg> Queue;
|
Synced<Queue> queue_;
|
|
public:
|
void Push(const std::string &remote, BHMsgHead &&head, MsgRequestTopicReply &&body)
|
{
|
queue_->emplace_back(remote, std::move(head), std::move(body));
|
}
|
void TrySend(ShmSocket &socket, const int timeout_ms = 0)
|
{
|
queue_.Apply([&](Queue &q) {
|
if (!q.empty()) {
|
auto it = q.begin();
|
do {
|
if (it->Expired()) {
|
// it->msg_.Release(socket.shm());
|
it = q.erase(it);
|
} else if (socket.Send(it->remote_.data(), it->head_, it->body_, timeout_ms)) {
|
it = q.erase(it);
|
} else {
|
++it;
|
}
|
} while (it != q.end());
|
}
|
});
|
}
|
};
|
|
} // namespace
|
TopicNode::TopicNode(SharedMemory &shm) :
|
shm_(shm), sock_node_(shm), sock_request_(shm), sock_reply_(shm), sock_sub_(shm)
|
{
|
SockNode().Start();
|
SockClient().Start();
|
SockServer().Start();
|
}
|
|
TopicNode::~TopicNode()
|
{
|
StopAll();
|
}
|
|
void TopicNode::StopAll()
|
{
|
SockServer().Stop();
|
SockClient().Stop();
|
SockNode().Stop();
|
}
|
|
bool TopicNode::Register(const MsgRegister &body, MsgCommonReply &reply_body, const int timeout_ms)
|
{
|
auto &sock = SockNode();
|
|
auto head(InitMsgHead(GetType(body), body.proc().proc_id()));
|
AddRoute(head, sock.id());
|
|
MsgI reply;
|
DEFER1(reply.Release(shm_););
|
BHMsgHead reply_head;
|
bool r = sock.SendAndRecv(&BHTopicCenterAddress(), head, body, reply, reply_head, timeout_ms);
|
r = r && reply_head.type() == kMsgTypeCommonReply && reply.ParseBody(reply_body);
|
if (r) {
|
info_ = body;
|
}
|
return r;
|
}
|
|
bool TopicNode::RegisterRPC(const MsgRegisterRPC &body, MsgCommonReply &reply_body, const int timeout_ms)
|
{
|
//TODO check registered
|
auto &sock = SockServer();
|
|
auto head(InitMsgHead(GetType(body), proc_id()));
|
AddRoute(head, sock.id());
|
|
MsgI reply;
|
DEFER1(reply.Release(shm_););
|
BHMsgHead reply_head;
|
bool r = sock.SendAndRecv(&BHTopicCenterAddress(), head, body, reply, reply_head, timeout_ms);
|
r = r && reply_head.type() == kMsgTypeCommonReply;
|
r = r && reply.ParseBody(reply_body);
|
return r;
|
}
|
|
bool TopicNode::ServerStart(const OnRequest &rcb, int nworker)
|
{
|
//TODO check registered
|
|
auto failed_q = std::make_shared<ServerFailedQ>();
|
|
auto onIdle = [failed_q](ShmSocket &socket) { failed_q->TrySend(socket); };
|
|
auto onRecv = [this, rcb, failed_q, onIdle](ShmSocket &sock, MsgI &imsg, BHMsgHead &head) {
|
if (head.type() == kMsgTypeRequestTopic && head.route_size() > 0) {
|
MsgRequestTopic req;
|
if (imsg.ParseBody(req)) {
|
std::string out;
|
if (rcb(req.topic(), req.data(), out)) {
|
MsgRequestTopicReply reply_body;
|
reply_body.set_data(std::move(out));
|
BHMsgHead reply_head(InitMsgHead(GetType(reply_body), proc_id(), head.msg_id()));
|
|
for (int i = 0; i < head.route_size() - 1; ++i) {
|
reply_head.add_route()->Swap(head.mutable_route(i));
|
}
|
if (!sock.Send(head.route().rbegin()->mq_id().data(), reply_head, reply_body, 10)) {
|
failed_q->Push(head.route().rbegin()->mq_id(), std::move(reply_head), std::move(reply_body));
|
}
|
}
|
}
|
} else {
|
// ignored, or dropped
|
}
|
|
onIdle(sock);
|
};
|
|
auto &sock = SockServer();
|
return rcb && sock.Start(onRecv, onIdle, nworker);
|
}
|
|
bool TopicNode::ServerRecvRequest(void *&src_info, std::string &topic, std::string &data, const int timeout_ms)
|
{
|
auto &sock = SockServer();
|
|
MsgI imsg;
|
BHMsgHead head;
|
if (sock.SyncRecv(imsg, head, timeout_ms) && head.type() == kMsgTypeRequestTopic) {
|
MsgRequestTopic request;
|
if (imsg.ParseBody(request)) {
|
request.mutable_topic()->swap(topic);
|
request.mutable_data()->swap(data);
|
SrcInfo *p = new SrcInfo;
|
p->route.assign(head.route().begin(), head.route().end());
|
p->msg_id = head.msg_id();
|
src_info = p;
|
return true;
|
}
|
}
|
return false;
|
}
|
|
bool TopicNode::ServerSendReply(void *src_info, const std::string &data, const int timeout_ms)
|
{
|
auto &sock = SockServer();
|
|
SrcInfo *p = static_cast<SrcInfo *>(src_info);
|
DEFER1(delete p);
|
if (!p || p->route.empty()) {
|
return false;
|
}
|
MsgRequestTopicReply body;
|
body.set_data(data);
|
BHMsgHead head(InitMsgHead(GetType(body), proc_id(), p->msg_id));
|
|
for (unsigned i = 0; i < p->route.size() - 1; ++i) {
|
head.add_route()->Swap(&p->route[i]);
|
}
|
|
return sock.Send(p->route.back().mq_id().data(), head, body, timeout_ms);
|
}
|
|
bool TopicNode::ClientStartWorker(RequestResultCB const &cb, const int nworker)
|
{
|
if (!cb) {
|
return false;
|
}
|
auto onData = [this, cb](ShmSocket &socket, MsgI &imsg, BHMsgHead &head) {
|
if (head.type() == kMsgTypeRequestTopicReply) {
|
MsgRequestTopicReply reply;
|
if (imsg.ParseBody(reply)) {
|
cb(reply.data());
|
}
|
}
|
};
|
|
return SockRequest().Start(onData, nworker);
|
}
|
|
bool TopicNode::ClientAsyncRequest(const Topic &topic, const void *data, const size_t size, const int timeout_ms, const RequestResultCB &cb)
|
{
|
auto Call = [&](const void *remote) {
|
auto &sock = SockRequest();
|
|
MsgRequestTopic req;
|
req.set_topic(topic);
|
req.set_data(data, size);
|
BHMsgHead head(InitMsgHead(GetType(req), proc_id()));
|
AddRoute(head, sock.id());
|
|
if (cb) {
|
auto onRecv = [cb](ShmSocket &sock, MsgI &imsg, BHMsgHead &head) {
|
if (head.type() == kMsgTypeRequestTopicReply) {
|
MsgRequestTopicReply reply;
|
if (imsg.ParseBody(reply)) {
|
cb(reply.data());
|
}
|
}
|
};
|
return sock.Send(remote, head, req, timeout_ms, onRecv);
|
} else {
|
return sock.Send(remote, head, req, timeout_ms);
|
}
|
};
|
|
try {
|
BHAddress addr;
|
if (ClientQueryRPCTopic(topic, addr, timeout_ms)) {
|
return Call(addr.mq_id().data());
|
} else {
|
return false;
|
}
|
} catch (...) {
|
return false;
|
}
|
}
|
|
bool TopicNode::ClientSyncRequest(const Topic &topic, const void *data, const size_t size, std::string &out, const int timeout_ms)
|
{
|
try {
|
auto &sock = SockRequest();
|
|
BHAddress addr;
|
if (ClientQueryRPCTopic(topic, addr, timeout_ms)) {
|
|
MsgRequestTopic req;
|
req.set_topic(topic);
|
req.set_data(data, size);
|
BHMsgHead head(InitMsgHead(GetType(req), proc_id()));
|
AddRoute(head, sock.id());
|
|
MsgI reply;
|
DEFER1(reply.Release(shm_););
|
BHMsgHead reply_head;
|
|
if (sock.SendAndRecv(addr.mq_id().data(), head, req, reply, reply_head, timeout_ms) && reply_head.type() == kMsgTypeRequestTopicReply) {
|
MsgRequestTopicReply dr;
|
if (reply.ParseBody(dr)) {
|
dr.mutable_data()->swap(out);
|
return true;
|
} else {
|
printf("error parse reply.\n");
|
}
|
} else {
|
printf("error recv data. line: %d\n", __LINE__);
|
}
|
} else {
|
printf("error recv data. line: %d\n", __LINE__);
|
}
|
} catch (...) {
|
printf("error recv data. line: %d\n", __LINE__);
|
}
|
return false;
|
}
|
|
bool TopicNode::ClientQueryRPCTopic(const Topic &topic, bhome::msg::BHAddress &addr, const int timeout_ms)
|
{
|
auto &sock = SockRequest();
|
|
if (topic_query_cache_.Find(topic, addr)) {
|
return true;
|
}
|
|
MsgQueryTopic query;
|
query.set_topic(topic);
|
BHMsgHead head(InitMsgHead(GetType(query), proc_id()));
|
AddRoute(head, sock.id());
|
|
MsgI reply;
|
DEFER1(reply.Release(shm_));
|
BHMsgHead reply_head;
|
|
if (sock.SendAndRecv(&BHTopicCenterAddress(), head, query, reply, reply_head, timeout_ms)) {
|
if (reply_head.type() == kMsgTypeQueryTopicReply) {
|
MsgQueryTopicReply rep;
|
if (reply.ParseBody(rep)) {
|
addr = rep.address();
|
if (addr.mq_id().empty()) {
|
return false;
|
} else {
|
topic_query_cache_.Update(topic, addr);
|
return true;
|
}
|
}
|
}
|
} else {
|
}
|
return false;
|
}
|
|
// publish
|
|
bool TopicNode::Publish(const Topic &topic, const void *data, const size_t size, const int timeout_ms)
|
{
|
try {
|
auto &sock = SockPub();
|
|
MsgPublish pub;
|
pub.set_topic(topic);
|
pub.set_data(data, size);
|
BHMsgHead head(InitMsgHead(GetType(pub), proc_id()));
|
AddRoute(head, sock.id());
|
|
MsgI reply;
|
DEFER1(reply.Release(shm()););
|
BHMsgHead reply_head;
|
MsgCommonReply reply_body;
|
return sock.SendAndRecv(&BHTopicBusAddress(), head, pub, reply, reply_head, timeout_ms) &&
|
reply_head.type() == kMsgTypeCommonReply &&
|
reply.ParseBody(reply_body) &&
|
IsSuccess(reply_body.errmsg().errcode());
|
} catch (...) {
|
}
|
return false;
|
}
|
|
// subscribe
|
|
bool TopicNode::Subscribe(const std::vector<Topic> &topics, const int timeout_ms)
|
{
|
try {
|
auto &sock = SockSub();
|
MsgSubscribe sub;
|
for (auto &topic : topics) {
|
sub.add_topics(topic);
|
}
|
BHMsgHead head(InitMsgHead(GetType(sub), proc_id()));
|
AddRoute(head, sock.id());
|
|
return sock.Send(&BHTopicBusAddress(), head, sub, timeout_ms);
|
} catch (...) {
|
return false;
|
}
|
}
|
|
bool TopicNode::SubscribeStartWorker(const TopicDataCB &tdcb, int nworker)
|
{
|
auto &sock = SockSub();
|
|
auto AsyncRecvProc = [this, tdcb](ShmSocket &, MsgI &imsg, BHMsgHead &head) {
|
if (head.type() == kMsgTypePublish) {
|
MsgPublish pub;
|
if (imsg.ParseBody(pub)) {
|
tdcb(head.proc_id(), pub.topic(), pub.data());
|
}
|
} else {
|
// ignored, or dropped
|
}
|
};
|
|
return tdcb && sock.Start(AsyncRecvProc, nworker);
|
}
|
|
bool TopicNode::RecvSub(std::string &proc_id, Topic &topic, std::string &data, const int timeout_ms)
|
{
|
auto &sock = SockSub();
|
MsgI msg;
|
DEFER1(msg.Release(shm()););
|
BHMsgHead head;
|
if (sock.SyncRecv(msg, head, timeout_ms) && head.type() == kMsgTypePublish) {
|
MsgPublish pub;
|
if (msg.ParseBody(pub)) {
|
head.mutable_proc_id()->swap(proc_id);
|
pub.mutable_topic()->swap(topic);
|
pub.mutable_data()->swap(data);
|
return true;
|
}
|
}
|
return false;
|
}
|
