• Example 1 rls (remote ls - original version)

• Example 2 rls_v2 (revised)

• Example 3 calc

ONCRPC restricted us to remote procedures that accept a single parameter and return a single parameter. (Might not be true now but stick to this restriction)

Instead of starting with IDL (like Example 1 & 2), start wtih API.h and generate ONCRPC middle-layer automatically. Keep (or share) the same local implementation between RPC server and RPC client.

Similar to non-RPC application, the below files are manaully created. Create RPC middle-layer to integrate the local APIs defined in cl_calc.h.

cl_common.c/h : RPC Client handler cl_calc.c/h : functions declaration, definition. cl_client.c : client main program

CL is an imaginary product name for example 3.

1. cpp cl_calc.h -o cl_calc.i
2. pycparser to generate AST
3. AST visitor extracts typdef & *** fucntion declaration *** out of AST
4. generate IDL & RPC middle-layer Interface

The following files are generated from cl_calc.h

• CL.x (ONCRPC IDL)
• CL_proc.c (Client Middlelayer)
• CL_svc_proc.c (Server Middlelayer)
• CL_proc.h

CL.x generates :

• CL.h
• CL_svc.c
• CL_clnt.c
• CL_xdr.c

Complete C99 parser in pure Python

pycparser installation. ( powered by PLY )

pip install --index-url=https://pypi.python.org/simple/ pycparser