def __init__(self, space, name, flags, klass=None):
W_Object.__init__(self, space, klass)
namestr = '[current process]' if name is None else name
# on my os it's libc.so.6, not just libc.so
if name == 'libc.so': name = 'libc.so.6'
try:
self.cdll = clibffi.CDLL(name, flags)
except clibffi.DLOpenError:
raise space.error(space.w_LoadError,
"Could not open library %s" % namestr)
self.set_instance_var(space, '@name', space.newsymbol(namestr))
def test_it_creates_the_following_low_level_data(self, space):
w_function = space.execute(
typeformat("""
tan = FFI::DynamicLibrary.open('%s').find_function(:tan)
FFI::Function.new({float64}, [{float64}], tan, \{\})
""" % libm))
w_float64 = space.execute("FFI::Type::FLOAT64")
assert w_function.w_info.arg_types_w == [w_float64]
assert w_function.w_info.w_ret_type == w_float64
tan = clibffi.CDLL(libm).getpointer('tan', [clibffi.ffi_type_double],
clibffi.ffi_type_double)
assert w_function.ptr == tan.funcsym
def test_its_a_wrapper_around_a_function_symbol(self, space):
exp_ptr = clibffi.CDLL(libm).getaddressindll('exp')
w_dl_sym = W_DL_SymbolObject(space, exp_ptr)
assert w_dl_sym.ptr == exp_ptr