From c6964d5af25d4ec7ed9dbe7674dc4e3896b36ead Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期五, 16 四月 2021 16:10:02 +0800
Subject: [PATCH] node remove mq if never registered; refactor.
---
src/msg.h | 62 ++++++++++++++++++++++++------
1 files changed, 49 insertions(+), 13 deletions(-)
diff --git a/src/msg.h b/src/msg.h
index ea1e636..10ad0d2 100644
--- a/src/msg.h
+++ b/src/msg.h
@@ -18,10 +18,12 @@
#ifndef MSG_5BILLZET
#define MSG_5BILLZET
-#include "bhome_msg.pb.h"
+#include "bh_util.h"
+#include "proto.h"
#include "shm.h"
#include <boost/interprocess/offset_ptr.hpp>
#include <boost/uuid/uuid_generators.hpp>
+#include <functional>
#include <stdint.h>
namespace bhome_msg
@@ -59,21 +61,29 @@
int num_ = 1;
};
-BHMsg MakeQueryTopic(const std::string &topic);
-BHMsg MakeRequest(const MQId &src_id, const void *data, const size_t size);
-BHMsg MakeRequest(const MQId &src_id, const std::string &topic, 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 MakePub(const std::string &topic, const void *data, const size_t size);
-
+// message content layout: header_size + header + data_size + data
class MsgI
{
private:
offset_ptr<void> ptr_;
offset_ptr<RefCount> count_;
- bool BuildSubOrUnsub(SharedMemory &shm, const std::vector<std::string> &topics, const MsgType sub_unsub);
+ typedef std::function<void(void *p, int len)> ToArray;
+ void *Pack(SharedMemory &shm,
+ const uint32_t head_len, const ToArray &headToArray,
+ const uint32_t body_len, const ToArray &bodyToArray);
+
+ template <class Body>
+ void *Pack(SharedMemory &shm, const BHMsgHead &head, const Body &body)
+ {
+ return Pack(
+ shm,
+ uint32_t(head.ByteSizeLong()), [&](void *p, int len) { head.SerializeToArray(p, len); },
+ uint32_t(body.ByteSizeLong()), [&](void *p, int len) { body.SerializeToArray(p, len); });
+ }
+
+ bool MakeRC(SharedMemory &shm, void *addr);
+ bool Make(SharedMemory &shm, void *addr);
public:
MsgI(void *p = 0, RefCount *c = 0) :
@@ -94,9 +104,35 @@
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;
+ template <class Body>
+ inline bool MakeRC(SharedMemory &shm, const BHMsgHead &head, const Body &body)
+ {
+ return MakeRC(shm, Pack(shm, head, body));
+ }
+
+ bool EnableRefCount(SharedMemory &shm);
+
+ template <class Body>
+ inline bool Make(SharedMemory &shm, const BHMsgHead &head, const Body &body)
+ {
+ void *p = Pack(shm, head, body);
+ auto NeedRefCount = [&]() { return head.type() == kMsgTypePublish; };
+ return NeedRefCount() ? MakeRC(shm, p) : Make(shm, p);
+ }
+
+ bool ParseHead(BHMsgHead &head) const;
+ template <class Body>
+ bool ParseBody(Body &body) const
+ {
+ auto p = static_cast<char *>(ptr_.get());
+ assert(p);
+ uint32_t size = Get32(p);
+ p += 4;
+ p += size;
+ size = Get32(p);
+ p += 4;
+ return body.ParseFromArray(p, size);
+ }
};
inline void swap(MsgI &m1, MsgI &m2) { m1.swap(m2); }
--
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