use core::ffi::{c_char, c_void};
use super::{ChangeObserverCallback, JsonCallback};
extern "C" {
pub fn ph_authorization_status() -> i32;
pub fn ph_authorization_status_for_access_level(access_level: i32) -> i32;
pub fn ph_request_authorization_for_access_level(
access_level: i32,
out_error: *mut *mut c_char,
) -> i32;
pub fn ph_photo_library_shared() -> *mut c_void;
pub fn ph_photo_library_release(library: *mut c_void);
pub fn ph_photo_library_unavailability_reason_json(
library: *mut c_void,
out_error: *mut *mut c_char,
) -> *mut c_char;
pub fn ph_photo_library_register_change_observer(
library: *mut c_void,
callback: ChangeObserverCallback,
user_info: *mut c_void,
out_error: *mut *mut c_char,
) -> *mut c_void;
pub fn ph_photo_library_unregister_change_observer(observer: *mut c_void);
pub fn ph_photo_library_register_availability_observer(
library: *mut c_void,
callback: JsonCallback,
user_info: *mut c_void,
out_error: *mut *mut c_char,
) -> *mut c_void;
pub fn ph_photo_library_unregister_availability_observer(observer: *mut c_void);
pub fn ph_photo_library_current_change_token_json(
library: *mut c_void,
out_error: *mut *mut c_char,
) -> *mut c_char;
pub fn ph_photo_library_fetch_persistent_changes_since_token_json(
library: *mut c_void,
token_json: *const c_char,
out_error: *mut *mut c_char,
) -> *mut c_char;
}