From aa1542b6d6a4680088ac715c4ce40f97ada554fb Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期三, 14 四月 2021 17:52:31 +0800
Subject: [PATCH] add SendQ TrySend() TryRecv(); handle re-register.

---
 src/socket.h |   66 ++++++++++++++++++---------------
 1 files changed, 36 insertions(+), 30 deletions(-)

diff --git a/src/socket.h b/src/socket.h
index 5973ab6..9b47e42 100644
--- a/src/socket.h
+++ b/src/socket.h
@@ -21,6 +21,7 @@
 
 #include "bh_util.h"
 #include "defs.h"
+#include "sendq.h"
 #include "shm_queue.h"
 #include <atomic>
 #include <boost/noncopyable.hpp>
@@ -35,13 +36,10 @@
 
 class ShmSocket : private boost::noncopyable
 {
-	template <class DoSend>
-	inline bool SendImpl(MsgI &msg, const int timeout_ms, const DoSend &doSend)
+	bool SendImpl(const void *valid_remote, const MsgI &imsg, SendQ::OnMsgEvent onExpire = SendQ::OnMsgEvent())
 	{
-		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), imsg, onExpire);
+		return true;
 	}
 
 protected:
@@ -58,7 +56,6 @@
 	~ShmSocket();
 	static bool Remove(SharedMemory &shm, const MQId &id) { return Queue::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); }
@@ -66,29 +63,36 @@
 	bool Stop();
 	size_t Pending() const { return mq().Pending(); }
 
-	bool Send(const void *valid_remote, const MsgI &imsg, const int timeout_ms)
+	template <class Body>
+	bool Send(const void *valid_remote, const BHMsgHead &head, const Body &body)
 	{
-		assert(valid_remote);
-		return mq().Send(*static_cast<const MQId *>(valid_remote), imsg, timeout_ms);
+		MsgI msg;
+		return msg.Make(shm(), head, body) && SendImpl(valid_remote, msg);
 	}
-	//TODO reimplment, using async.
+
+	template <class Body>
+	bool Send(const void *valid_remote, const BHMsgHead &head, const Body &body, const RecvCB &cb)
+	{
+		//TODO send_buffer_ need flag, and remove callback on expire.
+		MsgI msg;
+		if (msg.Make(shm(), head, body)) {
+			std::string msg_id(head.msg_id());
+			per_msg_cbs_->Add(msg_id, cb);
+			auto onExpireRemoveCB = [this, msg_id](MsgI const &msg) {
+				RecvCB cb_no_use;
+				per_msg_cbs_->Find(msg_id, cb_no_use);
+			};
+			return SendImpl(valid_remote, msg, onExpireRemoveCB);
+		}
+		return false;
+	}
+
+	bool Send(const void *valid_remote, const MsgI &imsg)
+	{
+		return SendImpl(valid_remote, imsg);
+	}
+
 	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)
-	{
-		auto DoSend = [&](MsgI &msg) { return mq().Send(*static_cast<const MQId *>(valid_remote), msg, timeout_ms, [&]() { per_msg_cbs_->Add(head.msg_id(), cb); }); };
-		MsgI msg;
-		return msg.Make(shm(), head, body) && SendImpl(msg, timeout_ms, DoSend);
-	}
-
-	template <class Body>
-	bool Send(const void *valid_remote, const BHMsgHead &head, const Body &body, const int timeout_ms)
-	{
-		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);
-	}
 
 	template <class Body>
 	bool SendAndRecv(const void *remote, const BHMsgHead &head, const Body &body, MsgI &reply, BHMsgHead &reply_head, const int timeout_ms)
@@ -114,7 +118,7 @@
 			};
 
 			std::unique_lock<std::mutex> lk(st->mutex);
-			bool sendok = Send(remote, head, body, timeout_ms, OnRecv);
+			bool sendok = Send(remote, head, body, OnRecv);
 			if (!sendok) {
 				printf("send timeout\n");
 			}
@@ -129,8 +133,9 @@
 		}
 	}
 
+	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_; }
@@ -139,7 +144,6 @@
 	bool StopNoLock();
 	bool RunningNoLock() { return !workers_.empty(); }
 
-	Shm &shm_;
 	std::vector<std::thread> workers_;
 	std::mutex mutex_;
 	std::atomic<bool> run_;
@@ -150,6 +154,7 @@
 		std::unordered_map<std::string, RecvCB> store_;
 
 	public:
+		bool empty() const { return store_.empty(); }
 		bool Add(const std::string &id, const RecvCB &cb) { return store_.emplace(id, cb).second; }
 		bool Find(const std::string &id, RecvCB &cb)
 		{
@@ -165,6 +170,7 @@
 	};
 
 	Synced<AsyncCBs> per_msg_cbs_;
+	Synced<SendQ> send_buffer_;
 };
 
 #endif // end of include guard: SOCKET_GWTJHBPO

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