From 77a6c3512a44dfe6540dde71946e6484fe4f173f Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期一, 10 五月 2021 16:05:28 +0800
Subject: [PATCH] test lock code.
---
src/bh_util.h | 32 +++++++++++++++++++++++++-------
1 files changed, 25 insertions(+), 7 deletions(-)
diff --git a/src/bh_util.h b/src/bh_util.h
index e3ab70b..a1c0d84 100644
--- a/src/bh_util.h
+++ b/src/bh_util.h
@@ -18,6 +18,7 @@
#ifndef BH_UTIL_SOXWOK67
#define BH_UTIL_SOXWOK67
+#include "macro.h"
#include <functional>
#include <mutex>
#include <stdint.h>
@@ -143,12 +144,29 @@
}
};
-// macro helper
-#define JOIN_IMPL(a, b) a##b
-#define JOIN(a, b) JOIN_IMPL(a, b)
-// defer function / lambda.
-#define DEFERF(func) ExitCall JOIN(defer_, __LINE__)(func)
-// defer simple expression
-#define DEFER1(expr) DEFERF([&]() { expr; })
+template <class T, class Tag>
+class StaticDataRef
+{
+ typedef T *Ptr;
+ static inline Ptr &ptr()
+ {
+ static Ptr sp(nullptr);
+ return sp;
+ }
+
+protected:
+ static inline T &GetData()
+ {
+ if (!ptr()) { throw std::string("Must set ShmMsg shm before use!"); }
+ return *ptr();
+ }
+
+public:
+ static bool SetData(T &t)
+ {
+ auto Bind = [&]() { ptr() = &t; return true; };
+ return ptr() ? false : Bind();
+ }
+};
#endif /* end of include guard: BH_UTIL_SOXWOK67 */
--
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