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| small dli enhancement [message #39656] |
Sun, 14 April 2013 06:17 |
Shire
Messages: 41
Registered: September 2006
Location: Russia, Yamal peninsula
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dli.h generates two global functions:
DLIMODULE() and DLIMODULE ## _()
First function has load .dll before return module pointer. Second function is just holder of static module variable.
There are many situations where additional module check is not necessary - for example, sequence of dll function calls, and DLIMODULE_() function is good for these situations. But it generates in source section, and compiler have to generate additional function call for each dll function call. I propose to move DLIMODULE_() to header section and make it inline:
DLLTYPE& DLIMODULE();
-DLLTYPE& COMBINE(DLIMODULE, _)();
+inline DLLTYPE& COMBINE(DLIMODULE, _)()
+{
+ static DLLTYPE out;
+ return out;
+}
#endif
#ifdef DLI_SOURCE
#undef DLI_SOURCE
-DLLTYPE& COMBINE(DLIMODULE, _)()
-{
- static DLLTYPE out;
- return out;
-}
This can avoid overhead for function call at every dll function invoke.
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