Function g_cache_new

pub unsafe extern "C" fn g_cache_new(
    value_new_func: Option<unsafe extern "C" fn(*mut c_void) -> *mut c_void>,
    value_destroy_func: Option<unsafe extern "C" fn(*mut c_void)>,
    key_dup_func: Option<unsafe extern "C" fn(*mut c_void) -> *mut c_void>,
    key_destroy_func: Option<unsafe extern "C" fn(*mut c_void)>,
    hash_key_func: Option<unsafe extern "C" fn(*const c_void) -> u32>,
    hash_value_func: Option<unsafe extern "C" fn(*const c_void) -> u32>,
    key_equal_func: Option<unsafe extern "C" fn(*const c_void, *const c_void) -> i32>,
) -> *mut _GCache