Re: [GM-bugs] GraphicsMagick may collapse when binding into a server

[Bob F. <bfr...@si...>]

On Fri, 17 May 2013, Feng Liyuan wrote:

> I bind these code into a golang server to deal with images.
>
>       #cgo pkg-config: GraphicsMagick
>
>       #include <magick/api.h>
>
>       static int GMCmd(int argc, char **argv) {
>           int status;
>           status = GMCommand(argc, argv);
>           return status;
>       }
> 
> 
> It may collapse and let server panic.

I am not sure how a server might panic.  At any rate, the solution is 
simple.

Add

   InitializeMagick(*argv);

after the

   int status;

And all should be well.  In fact it should be better since after 
invoking InitializeMagick() once, all of GM's internal semaphores are 
fully initialized and so you can safely invoke GMCommand() in a 
threaded context without fear of any race condition.

Bob
-- 
Bob Friesenhahn
bfr...@si..., http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/