Module: FFI::Library

Included in:
ExecutableMemoryPointer::C
Defined in:
lib/ffi/extra.rb

Instance Method Summary collapse

Instance Method Details

#attach_function!(*args, &block) ⇒ Object 



65
66
67
68
69
70
71
 
# File 'lib/ffi/extra.rb', line 65

def attach_function! (*args, &block)
  begin
    attach_function(*args, &block)
  rescue Exception => e
    false
  end
end

#ffi_lib_add(*names) ⇒ Object 



41
42
43
44
45
46
47
48
49
50
51
 
# File 'lib/ffi/extra.rb', line 41

def ffi_lib_add (*names)
  ffi_lib *((begin
    ffi_libraries
  rescue Exception
    []
  end).map {|lib|
    lib.name
  } + names).compact.uniq.reject {|lib|
    lib == '[current process]'
  }
end

#has_function?(sym, libraries = nil) ⇒ Boolean 



53
54
55
56
57
58
59
60
61
62
63
 
# File 'lib/ffi/extra.rb', line 53

def has_function? (sym, libraries=nil)
  libraries ||= ffi_libraries

  libraries.any? {|lib|
    if lib.is_a?(DynamicLibrary)
      lib
    else
      DynamicLibrary.new(lib, 0)
    end.find_function(sym.to_s) rescue nil
  }
end