Problems when running under Appweb

Damien · **Joined:** Thu Dec 10, 2009 5:27 pm **Posts:** 2

I have a problem when loading my module in a controller under appweb.

The first time I do a request, everything works ok. But the second time, I get an error:

InternalError Exception: Native function "Client" is not defined Stack: [00] controllers/Api.es, ApiController.ApiController, line 9 -> this._client = new Client();
To have it work correctly I had to comment these line in ejsLib.c on line 30070:

Code:

// if (mprLookupModule(ejs, mp->name) != 0) {
//    mprLog(ejs, 1, "Native module \"%s\" is already loaded", path);
//    return 0;
//}

I had also another problem where the line 29122

Code:

mprGetPathDir(ejs, path);

does returns the ejs application path instead of the module path (say /htdocs/app instead of /lib/appweb) so the loadNativeLibrary function fails and the module is not loaded.

Damien · **Joined:** Thu Dec 10, 2009 5:27 pm **Posts:** 2

Also, there seems to be a problem related with multi-threading. When the module initializations routine are run both at the same time. Note that even without the comment there are crashes. I suppose there might be a race condition between the check

Code:

if (mprLookupModule(ejs, mp->name) != 0)

and the call to

Code:

mprLoadModule(ejs, path, initName).

phale · **Joined:** Mon Feb 09, 2009 3:25 am **Posts:** 21

Each request has its own interpreter. But native code is shared through the entire process.

I think u could be right that locks are needed there when loading the native library.

Peter

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Problems when running under Appweb

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