Prevent clearing MEX file from memory
#include "mex.h" void mexLock(void);
#include "fintrf.h" subroutine mexLock()
By default, MEX files are unlocked, meaning you can clear them
at any time. Call mexLock to prohibit clearing
a MEX file.
To unlock a MEX file, call mexUnlock. Do
not use the munlock function.
mexLock increments a lock count. If you
call mexLock n times, call mexUnlock n times
to unlock your MEX file.