From 9bf199a4770b08c03d553129757d960b605e598a Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期五, 14 五月 2021 18:05:21 +0800
Subject: [PATCH] add center info at fixed address in shm.
---
src/msg.cpp | 33 ++++++++++++++++++++++++++++++++-
1 files changed, 32 insertions(+), 1 deletions(-)
diff --git a/src/msg.cpp b/src/msg.cpp
index 7ab0434..edffff1 100644
--- a/src/msg.cpp
+++ b/src/msg.cpp
@@ -17,9 +17,40 @@
*/
#include "msg.h"
#include "bh_util.h"
+#include "defs.h"
+#include "socket.h"
namespace bhome_msg
{
-const uint32_t kMsgTag = 0xf1e2d3c4;
+ShmSocket &ShmMsg::Sender()
+{
+ static auto &mq = GetCenterInfo(shm())->mq_sender_;
+ static ShmSocket sender(mq.offset_, shm(), mq.id_);
+ return sender;
+}
+
+int ShmMsg::Release()
+{
+ if (!valid()) {
+ return 0;
+ }
+ auto n = meta()->count_.Dec();
+ if (n == 0) {
+ int64_t free_cmd = (id() << 4) | EncodeCmd(eCmdFree);
+ Sender().Send(BHTopicCenterAddress(), free_cmd);
+ } else if (n < 0) {
+ LOG_FATAL() << "error double release data.";
+ throw std::runtime_error("double release msg.");
+ }
+ return n;
+}
+
+void ShmMsg::Free()
+{
+ assert(valid());
+ shm().Dealloc(meta());
+ offset_ = 0;
+ assert(!valid());
+}
} // namespace bhome_msg
--
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