Hi, Eric!
Why not just load your main script and then use the functions and variables directly.
You offer me using a trick. This trick make debug more complicated.
Perhaps you could give a very simple example of exactly what you want to do. It is not clear what you meany by "return of a session of the main J script'.
Short example: Typical use: Initialize the DLL, returning a J session number: p=. (libj,' JInit x') cd '' ┌────────┐ │53024912│ └────────┘ I need this: p=. (libj,' JCurrSession x') cd '' ┌────────┐ │23452342│ └────────┘ Main script: var1=: ... var2=: ... function1=: ... After I load libj.so: (libj,' JDo i x *c') cd p,<cmd NB. send to J DLL ┌─┬────────┬────────────────────┐ │0 │23452342│ echo var1 function1 var2│ └─┴────────┴────────────────────┘ In session 53024912 my variables var1 and var2 inaccesible, and function1 also. If I'm know session of main script then I can using var1, var2, function1. *Details about my task:* I write the optimizer of trade strategy on J - test.ijs script which load trade advisers also written in J. This is massive computer job requires multiple processes or threads. I have wanted to use threads in J. Linux have libpthread.so J has support of using shared libraries. Thread have multiple advantages: memory economy (shared data for all threads) and lower CPU consumption against processes. I want to make the following: Get libj.so entering address: '/lib/libdl.so.2 dlopen x *c i' cd 'libj.so';2 ┌────────┬───────┬─┐ │27652176│libj.so│2│ └────────┴───────┴─┘ Get JDo procedure address: '/lib/libdl.so.2 dlsym x x *c' cd 27652176; 'JDo' ┌───────────────┬────────┬───┐ │139689066604876│27652176│JDo│ └───────────────┴────────┴───┘ Create thread: Adr=: 0 '/lib/libpthread.so.0 pthread_create x x x x x' cd Adr; NULL; 139689066604876; NULL In this example do not shown hot to pass parameter for JDo. But this is possible with function mema and memw. I need real access for JDo to varibles and function of main script. Sergey. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
