From 3c2b6739208d961cf8b86460d7f05516d044960c Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期三, 31 三月 2021 19:13:42 +0800
Subject: [PATCH] add async recv suport; sync by waiting for async.

---
 src/shm_queue.cpp |   36 ++++++++----------------------------
 1 files changed, 8 insertions(+), 28 deletions(-)

diff --git a/src/shm_queue.cpp b/src/shm_queue.cpp
index cf4c8b4..f2fb45b 100644
--- a/src/shm_queue.cpp
+++ b/src/shm_queue.cpp
@@ -64,23 +64,22 @@
 	Remove();
 }
 
-bool ShmMsgQueue::Send(SharedMemory &shm, const MQId &remote_id, const MsgI &msg, const int timeout_ms)
+bool ShmMsgQueue::Send(SharedMemory &shm, const MQId &remote_id, const MsgI &msg, const int timeout_ms, OnSend const &onsend)
 {
 	Queue *remote = Find(shm, MsgQIdToName(remote_id));
-	return remote && remote->Write(msg, timeout_ms, [](const MsgI &msg) { msg.AddRef(); });
+	return remote && remote->Write(msg, timeout_ms, [&onsend](const MsgI &msg) { onsend(); msg.AddRef(); });
 }
 
-// bool ShmMsgQueue::Send(const MQId &remote_id, const MsgI &msg, const int timeout_ms)
-// {
-//     Queue *remote = Find(MsgQIdToName(remote_id));
-//     return remote && remote->Write(msg, timeout_ms, [](const MsgI&msg){msg.AddRef();});
-// }
+// Test shows that in the 2 cases:
+// 1) build msg first, then find remote queue;
+// 2) find remote queue first, then build msg;
+// 1 is about 50% faster than 2, maybe cache related.
 
-bool ShmMsgQueue::Send(const MQId &remote_id, const BHMsg &data, const int timeout_ms)
+bool ShmMsgQueue::Send(const MQId &remote_id, const BHMsg &data, const int timeout_ms, const std::function<void()> &onsend)
 {
 	MsgI msg;
 	if (msg.Make(shm(), data)) {
-		if (Send(remote_id, msg, timeout_ms)) {
+		if (Send(remote_id, msg, timeout_ms, onsend)) {
 			return true;
 		} else {
 			msg.Release(shm());
@@ -89,25 +88,6 @@
 	return false;
 }
 
-/*
-bool ShmMsgQueue::Send(const MQId &remote_id, const void *data, const size_t size, const int timeout_ms)
-{
-    // Test shows that in the 2 cases:
-    // 1) build msg first, then find remote queue;
-    // 2) find remote queue first, then build msg;
-    // 1 is about 50% faster than 2, maybe cache related.
-
-    MsgI msg;
-    if(msg.BuildRequest(shm(), Id(), data, size)) {
-        if(Send(remote_id, msg, timeout_ms)) {
-            return true;
-        } else {
-            msg.Release(shm());
-        }
-    }
-    return false;
-}
-//*/
 bool ShmMsgQueue::Recv(BHMsg &msg, const int timeout_ms)
 {
 	MsgI imsg;

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