From 11f6c600e55ca5677f93624efe44d2605cdd908d Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期五, 21 五月 2021 20:18:38 +0800
Subject: [PATCH] reserve #,@ prefix for internal proc id and topic.

---
 src/shm_msg_queue.cpp |   46 +++++++++++++++++++++++++---------------------
 1 files changed, 25 insertions(+), 21 deletions(-)

diff --git a/src/shm_msg_queue.cpp b/src/shm_msg_queue.cpp
index b78c1a0..be2d2a2 100644
--- a/src/shm_msg_queue.cpp
+++ b/src/shm_msg_queue.cpp
@@ -31,19 +31,13 @@
 
 } // namespace
 
-ShmMsgQueue::MQId ShmMsgQueue::NewId()
-{
-	static auto &id = GetData();
-	return (++id) * 10;
-}
-
-ShmMsgQueue::ShmMsgQueue(const MQId id, ShmType &segment, const int len) :
+ShmMsgQueue::ShmMsgQueue(ShmType &segment, const MQId id, const int len) :
     id_(id),
     queue_(segment, MsgQIdToName(id_), len, segment.get_segment_manager())
 {
 }
 
-ShmMsgQueue::ShmMsgQueue(const MQId id, const bool create_or_else_find, ShmType &segment, const int len) :
+ShmMsgQueue::ShmMsgQueue(ShmType &segment, const bool create_or_else_find, const MQId id, const int len) :
     id_(id),
     queue_(segment, create_or_else_find, MsgQIdToName(id_), len, segment.get_segment_manager())
 {
@@ -51,11 +45,15 @@
 		throw("error create/find msgq " + std::to_string(id_));
 	}
 }
-ShmMsgQueue::ShmMsgQueue(ShmType &segment, const int len) :
-    ShmMsgQueue(NewId(), true, segment, len) {}
+ShmMsgQueue::ShmMsgQueue(const int64_t abs_addr, ShmType &segment, const MQId id) :
+    id_(id), queue_(abs_addr, segment, MsgQIdToName(id_))
+{
+	//TODO check some tag.
+}
 
 ShmMsgQueue::~ShmMsgQueue() {}
 
+#ifndef BH_USE_ATOMIC_Q
 ShmMsgQueue::Mutex &ShmMsgQueue::GetMutex(const MQId id)
 {
 	static std::unordered_map<MQId, std::shared_ptr<Mutex>> imm;
@@ -69,13 +67,19 @@
 	}
 	return *pos->second;
 }
+#endif
+
 bool ShmMsgQueue::Remove(SharedMemory &shm, const MQId id)
 {
 	Queue *q = Find(shm, id);
 	if (q) {
-		MsgI msg;
-		while (q->TryRead(msg.OffsetRef())) {
-			msg.Release();
+		RawData val = 0;
+		while (q->TryRead(val)) {
+			if (IsCmd(val)) {
+				LOG_DEBUG() << "clsing queue " << id << ", has a cmd" << DecodeCmd(val);
+			} else {
+				MsgI(val, shm).Release();
+			}
 		}
 	}
 	return Shmq::Remove(shm, MsgQIdToName(id));
@@ -86,19 +90,19 @@
 	return Shmq::Find(shm, MsgQIdToName(remote_id));
 }
 
-bool ShmMsgQueue::TrySend(SharedMemory &shm, const MQId remote_id, MsgI msg)
+bool ShmMsgQueue::TrySend(SharedMemory &shm, const MQInfo &remote, const RawData val)
 {
-	bool r = false;
 	try {
-		ShmMsgQueue dest(remote_id, false, shm, 1);
-		msg.AddRef();
-		DEFER1(if (!r) { msg.Release(); });
-
+		//TODO find from center, or use offset.
+		ShmMsgQueue dest(remote.offset_, shm, remote.id_);
+#ifndef BH_USE_ATOMIC_Q
 		Guard lock(GetMutex(remote_id));
-		r = dest.queue().TryWrite(msg.Offset());
+#endif
+		return dest.queue().TryWrite(val);
 	} catch (...) {
+		// SetLastError(eNotFound, "remote not found");
+		return false;
 	}
-	return r;
 }
 
 // Test shows that in the 2 cases:

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