How to call a function in shared library using Lua

Question

I have a shared library where I have some functions. I want to access them by getting their signature using luajit.

I have a libtest_c.so --> /usr/local/lib

lua --> /usr/local/bin

require("test_c")

stdin:1: module 'test_c' not found:

no field package.preload['test_c']
no file './test_c.lua'
no file '/usr/local/share/luajit-2.0.4/test_c.lua'
no file '/usr/local/share/lua/5.1/test_c.lua'
no file '/usr/local/share/lua/5.1/test_c/init.lua'
no file './test_c.so'
no file '/usr/local/lib/lua/5.1/test_c.so'
no file '/usr/local/lib/lua/5.1/loadall.so'

stack traceback: [C]: in function 'require' stdin:1: in main chunk [C]: at 0x00404270

Eric Leschinski · Accepted Answer · 2016-06-17 15:29:33Z

5

Call a function in shared library using Lua:

http://luajit.org/ext_ffi.html

local lib = ffi.load('some.dll')
ffi.cdef[[
  void hello (void);
]]
lib.hello()

edited Jun 17, 2016 at 15:29

Eric Leschinski

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answered Jun 17, 2016 at 13:07

moteus

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