Function gio_sys::g_pollable_stream_write_all

pub unsafe extern "C" fn g_pollable_stream_write_all(
    stream: *mut GOutputStream, 
    buffer: *mut u8, 
    count: size_t, 
    blocking: gboolean, 
    bytes_written: *mut size_t, 
    cancellable: *mut GCancellable, 
    error: *mut *mut GError
) -> gboolean