mORMot Open Source

win2014

Member

Registered: 2014-06-10

Posts: 31

JS_SetRuntimePrivate and JS_GetRuntimePrivate can not locate on the SM

When I use JS_SetRuntimePrivate or JS_GetRuntimePrivate in SynSM, the app directly crash! And then show "Can not locate the program import point JS_SetRuntimePrivate..".

win2014

Member

Registered: 2014-06-10

Posts: 31

Re: JS_SetRuntimePrivate and JS_GetRuntimePrivate can not locate on the SM

I had fixed this, see below:

function JS_GetRuntimePrivate(rt: PJSRuntime): pointer; cdecl; external SpiderMonkeyLib name '?JS_GetRuntimePrivate@@YAPAXPAUJSRuntime@@@Z';
procedure JS_SetRuntimePrivate(rt: PJSRuntime; data: pointer); cdecl; external SpiderMonkeyLib name '?JS_SetRuntimePrivate@@YAXPAUJSRuntime@@PAX@Z';

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,660

Website

Re: JS_SetRuntimePrivate and JS_GetRuntimePrivate can not locate on the SM

It should be fixed IMHO at .dll level.

mpv, are you there to help?

mpv

Member

From: Ukraine

Registered: 2012-03-24

Posts: 1,571

Website

Re: JS_SetRuntimePrivate and JS_GetRuntimePrivate can not locate on the SM

Really - we do not patch these functions to be visible from C (Delphi) code. Signatures you found is for C++. But my recommendation - do not use it (some external libs may also use runtime privat). Since we have one runtime & one context per thread you can store your runtime-related data in the threadvar (or using the way  TSQLDBConnectionPropertiesThreadSafe.ThreadSafeConnection or TSMEngineManager.CurrentThreadEngine work)

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,660

Website

Re: JS_SetRuntimePrivate and JS_GetRuntimePrivate can not locate on the SM

+1 for threadvar

And you can sub-class your custom TSMEngine class and use TSMEngineManager.CurrentThreadEngine to retrieve the current running instance.

Or if you are using our mORMot interface-based services, you can use sicClientDriven kind of instance life-time.