codekingpro/portable-devtools

1import sys2try:3    from ctypes import cdll, c_void_p, c_char_p, util4except ImportError:5    # ctypes is an optional module. If it's not present, we're limited in what6    # we can tell about the system, but we don't want to prevent the module7    # from working.8    print("ctypes isn't available; iOS system calls will not be available", file=sys.stderr)9    objc = None10else:11    # ctypes is available. Load the ObjC library, and wrap the objc_getClass,12    # sel_registerName methods13    lib = util.find_library("objc")14    if lib is None:15        # Failed to load the objc library16        raise ImportError("ObjC runtime library couldn't be loaded")17 18    objc = cdll.LoadLibrary(lib)19    objc.objc_getClass.restype = c_void_p20    objc.objc_getClass.argtypes = [c_char_p]21    objc.sel_registerName.restype = c_void_p22    objc.sel_registerName.argtypes = [c_char_p]23 24 25def get_platform_ios():26    # Determine if this is a simulator using the multiarch value27    is_simulator = sys.implementation._multiarch.endswith("simulator")28 29    # We can't use ctypes; abort30    if not objc:31        return None32 33    # Most of the methods return ObjC objects34    objc.objc_msgSend.restype = c_void_p35    # All the methods used have no arguments.36    objc.objc_msgSend.argtypes = [c_void_p, c_void_p]37 38    # Equivalent of:39    #   device = [UIDevice currentDevice]40    UIDevice = objc.objc_getClass(b"UIDevice")41    SEL_currentDevice = objc.sel_registerName(b"currentDevice")42    device = objc.objc_msgSend(UIDevice, SEL_currentDevice)43 44    # Equivalent of:45    #   device_systemVersion = [device systemVersion]46    SEL_systemVersion = objc.sel_registerName(b"systemVersion")47    device_systemVersion = objc.objc_msgSend(device, SEL_systemVersion)48 49    # Equivalent of:50    #   device_systemName = [device systemName]51    SEL_systemName = objc.sel_registerName(b"systemName")52    device_systemName = objc.objc_msgSend(device, SEL_systemName)53 54    # Equivalent of:55    #   device_model = [device model]56    SEL_model = objc.sel_registerName(b"model")57    device_model = objc.objc_msgSend(device, SEL_model)58 59    # UTF8String returns a const char*;60    SEL_UTF8String = objc.sel_registerName(b"UTF8String")61    objc.objc_msgSend.restype = c_char_p62 63    # Equivalent of:64    #   system = [device_systemName UTF8String]65    #   release = [device_systemVersion UTF8String]66    #   model = [device_model UTF8String]67    system = objc.objc_msgSend(device_systemName, SEL_UTF8String).decode()68    release = objc.objc_msgSend(device_systemVersion, SEL_UTF8String).decode()69    model = objc.objc_msgSend(device_model, SEL_UTF8String).decode()70 71    return system, release, model, is_simulator72