// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use gio_sys;
use glib;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib::GString;
use glib::StaticType;
use glib::ToValue;
use glib_sys;
use gobject_sys;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem;
use std::mem::transmute;
use std::pin::Pin;
use std::ptr;
use BufferedInputStream;
use Cancellable;
use DataStreamByteOrder;
use DataStreamNewlineType;
use FilterInputStream;
use InputStream;
use Seekable;

glib_wrapper! {
    /// Data input stream implements `InputStream` and includes functions for
    /// reading structured data directly from a binary input stream.
    ///
    /// # Implements
    ///
    /// [`DataInputStreamExt`](trait.DataInputStreamExt.html), [`BufferedInputStreamExt`](trait.BufferedInputStreamExt.html), [`FilterInputStreamExt`](trait.FilterInputStreamExt.html), [`InputStreamExt`](trait.InputStreamExt.html), [`glib::object::ObjectExt`](../glib/object/trait.ObjectExt.html), [`SeekableExt`](trait.SeekableExt.html), [`InputStreamExtManual`](prelude/trait.InputStreamExtManual.html)
    pub struct DataInputStream(Object<gio_sys::GDataInputStream, gio_sys::GDataInputStreamClass, DataInputStreamClass>) @extends BufferedInputStream, FilterInputStream, InputStream, @implements Seekable;

    match fn {
        get_type => || gio_sys::g_data_input_stream_get_type(),
    }
}

impl DataInputStream {
    /// Creates a new data input stream for the `base_stream`.
    /// ## `base_stream`
    /// a `InputStream`.
    ///
    /// # Returns
    ///
    /// a new `DataInputStream`.
    pub fn new<P: IsA<InputStream>>(base_stream: &P) -> DataInputStream {
        unsafe {
            from_glib_full(gio_sys::g_data_input_stream_new(
                base_stream.as_ref().to_glib_none().0,
            ))
        }
    }
}

#[derive(Clone, Default)]
pub struct DataInputStreamBuilder {
    byte_order: Option<DataStreamByteOrder>,
    newline_type: Option<DataStreamNewlineType>,
    buffer_size: Option<u32>,
    base_stream: Option<InputStream>,
    close_base_stream: Option<bool>,
}

impl DataInputStreamBuilder {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn build(self) -> DataInputStream {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref byte_order) = self.byte_order {
            properties.push(("byte-order", byte_order));
        }
        if let Some(ref newline_type) = self.newline_type {
            properties.push(("newline-type", newline_type));
        }
        if let Some(ref buffer_size) = self.buffer_size {
            properties.push(("buffer-size", buffer_size));
        }
        if let Some(ref base_stream) = self.base_stream {
            properties.push(("base-stream", base_stream));
        }
        if let Some(ref close_base_stream) = self.close_base_stream {
            properties.push(("close-base-stream", close_base_stream));
        }
        glib::Object::new(DataInputStream::static_type(), &properties)
            .expect("object new")
            .downcast()
            .expect("downcast")
    }

    pub fn byte_order(mut self, byte_order: DataStreamByteOrder) -> Self {
        self.byte_order = Some(byte_order);
        self
    }

    pub fn newline_type(mut self, newline_type: DataStreamNewlineType) -> Self {
        self.newline_type = Some(newline_type);
        self
    }

    pub fn buffer_size(mut self, buffer_size: u32) -> Self {
        self.buffer_size = Some(buffer_size);
        self
    }

    pub fn base_stream<P: IsA<InputStream>>(mut self, base_stream: &P) -> Self {
        self.base_stream = Some(base_stream.clone().upcast());
        self
    }

    pub fn close_base_stream(mut self, close_base_stream: bool) -> Self {
        self.close_base_stream = Some(close_base_stream);
        self
    }
}

pub const NONE_DATA_INPUT_STREAM: Option<&DataInputStream> = None;

/// Trait containing all `DataInputStream` methods.
///
/// # Implementors
///
/// [`DataInputStream`](struct.DataInputStream.html)
pub trait DataInputStreamExt: 'static {
    /// Gets the byte order for the data input stream.
    ///
    /// # Returns
    ///
    /// the `self`'s current `DataStreamByteOrder`.
    fn get_byte_order(&self) -> DataStreamByteOrder;

    /// Gets the current newline type for the `self`.
    ///
    /// # Returns
    ///
    /// `DataStreamNewlineType` for the given `self`.
    fn get_newline_type(&self) -> DataStreamNewlineType;

    /// Reads an unsigned 8-bit/1-byte value from `self`.
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    ///
    /// # Returns
    ///
    /// an unsigned 8-bit/1-byte value read from the `self` or `0`
    /// if an error occurred.
    fn read_byte<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<u8, glib::Error>;

    /// Reads a 16-bit/2-byte value from `self`.
    ///
    /// In order to get the correct byte order for this read operation,
    /// see `DataInputStreamExt::get_byte_order` and `DataInputStreamExt::set_byte_order`.
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    ///
    /// # Returns
    ///
    /// a signed 16-bit/2-byte value read from `self` or `0` if
    /// an error occurred.
    fn read_int16<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<i16, glib::Error>;

    /// Reads a signed 32-bit/4-byte value from `self`.
    ///
    /// In order to get the correct byte order for this read operation,
    /// see `DataInputStreamExt::get_byte_order` and `DataInputStreamExt::set_byte_order`.
    ///
    /// If `cancellable` is not `None`, then the operation can be cancelled by
    /// triggering the cancellable object from another thread. If the operation
    /// was cancelled, the error `IOErrorEnum::Cancelled` will be returned.
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    ///
    /// # Returns
    ///
    /// a signed 32-bit/4-byte value read from the `self` or `0` if
    /// an error occurred.
    fn read_int32<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<i32, glib::Error>;

    /// Reads a 64-bit/8-byte value from `self`.
    ///
    /// In order to get the correct byte order for this read operation,
    /// see `DataInputStreamExt::get_byte_order` and `DataInputStreamExt::set_byte_order`.
    ///
    /// If `cancellable` is not `None`, then the operation can be cancelled by
    /// triggering the cancellable object from another thread. If the operation
    /// was cancelled, the error `IOErrorEnum::Cancelled` will be returned.
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    ///
    /// # Returns
    ///
    /// a signed 64-bit/8-byte value read from `self` or `0` if
    /// an error occurred.
    fn read_int64<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<i64, glib::Error>;

    //fn read_line_finish_utf8(&self, result: /*Ignored*/&AsyncResult) -> Result<(Option<GString>, usize), glib::Error>;

    /// Reads a UTF-8 encoded line from the data input stream.
    ///
    /// If `cancellable` is not `None`, then the operation can be cancelled by
    /// triggering the cancellable object from another thread. If the operation
    /// was cancelled, the error `IOErrorEnum::Cancelled` will be returned.
    /// ## `length`
    /// a `gsize` to get the length of the data read in.
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    ///
    /// # Returns
    ///
    /// a NUL terminated UTF-8 string
    ///  with the line that was read in (without the newlines). Set
    ///  `length` to a `gsize` to get the length of the read line. On an
    ///  error, it will return `None` and `error` will be set. For UTF-8
    ///  conversion errors, the set error domain is `G_CONVERT_ERROR`. If
    ///  there's no content to read, it will still return `None`, but `error`
    ///  won't be set.
    fn read_line_utf8<P: IsA<Cancellable>>(
        &self,
        cancellable: Option<&P>,
    ) -> Result<(Option<GString>, usize), glib::Error>;

    /// Reads an unsigned 16-bit/2-byte value from `self`.
    ///
    /// In order to get the correct byte order for this read operation,
    /// see `DataInputStreamExt::get_byte_order` and `DataInputStreamExt::set_byte_order`.
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    ///
    /// # Returns
    ///
    /// an unsigned 16-bit/2-byte value read from the `self` or `0` if
    /// an error occurred.
    fn read_uint16<P: IsA<Cancellable>>(&self, cancellable: Option<&P>)
        -> Result<u16, glib::Error>;

    /// Reads an unsigned 32-bit/4-byte value from `self`.
    ///
    /// In order to get the correct byte order for this read operation,
    /// see `DataInputStreamExt::get_byte_order` and `DataInputStreamExt::set_byte_order`.
    ///
    /// If `cancellable` is not `None`, then the operation can be cancelled by
    /// triggering the cancellable object from another thread. If the operation
    /// was cancelled, the error `IOErrorEnum::Cancelled` will be returned.
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    ///
    /// # Returns
    ///
    /// an unsigned 32-bit/4-byte value read from the `self` or `0` if
    /// an error occurred.
    fn read_uint32<P: IsA<Cancellable>>(&self, cancellable: Option<&P>)
        -> Result<u32, glib::Error>;

    /// Reads an unsigned 64-bit/8-byte value from `self`.
    ///
    /// In order to get the correct byte order for this read operation,
    /// see `DataInputStreamExt::get_byte_order`.
    ///
    /// If `cancellable` is not `None`, then the operation can be cancelled by
    /// triggering the cancellable object from another thread. If the operation
    /// was cancelled, the error `IOErrorEnum::Cancelled` will be returned.
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    ///
    /// # Returns
    ///
    /// an unsigned 64-bit/8-byte read from `self` or `0` if
    /// an error occurred.
    fn read_uint64<P: IsA<Cancellable>>(&self, cancellable: Option<&P>)
        -> Result<u64, glib::Error>;

    /// Reads a string from the data input stream, up to the first
    /// occurrence of any of the stop characters.
    ///
    /// Note that, in contrast to `DataInputStreamExt::read_until_async`,
    /// this function consumes the stop character that it finds.
    ///
    /// Don't use this function in new code. Its functionality is
    /// inconsistent with `DataInputStreamExt::read_until_async`. Both
    /// functions will be marked as deprecated in a future release. Use
    /// `DataInputStreamExt::read_upto` instead, but note that that function
    /// does not consume the stop character.
    ///
    /// # Deprecated since 2.56
    ///
    /// Use `DataInputStreamExt::read_upto` instead, which has more
    ///  consistent behaviour regarding the stop character.
    /// ## `stop_chars`
    /// characters to terminate the read.
    /// ## `length`
    /// a `gsize` to get the length of the data read in.
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    ///
    /// # Returns
    ///
    /// a string with the data that was read
    ///  before encountering any of the stop characters. Set `length` to
    ///  a `gsize` to get the length of the string. This function will
    ///  return `None` on an error.
    #[cfg_attr(feature = "v2_56", deprecated)]
    fn read_until<P: IsA<Cancellable>>(
        &self,
        stop_chars: &str,
        cancellable: Option<&P>,
    ) -> Result<(GString, usize), glib::Error>;

    /// The asynchronous version of `DataInputStreamExt::read_until`.
    /// It is an error to have two outstanding calls to this function.
    ///
    /// Note that, in contrast to `DataInputStreamExt::read_until`,
    /// this function does not consume the stop character that it finds. You
    /// must read it for yourself.
    ///
    /// When the operation is finished, `callback` will be called. You
    /// can then call `DataInputStreamExt::read_until_finish` to get
    /// the result of the operation.
    ///
    /// Don't use this function in new code. Its functionality is
    /// inconsistent with `DataInputStreamExt::read_until`. Both functions
    /// will be marked as deprecated in a future release. Use
    /// `DataInputStreamExt::read_upto_async` instead.
    ///
    /// # Deprecated since 2.56
    ///
    /// Use `DataInputStreamExt::read_upto_async` instead, which
    ///  has more consistent behaviour regarding the stop character.
    /// ## `stop_chars`
    /// characters to terminate the read.
    /// ## `io_priority`
    /// the [I/O priority][io-priority] of the request
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore.
    /// ## `callback`
    /// callback to call when the request is satisfied.
    /// ## `user_data`
    /// the data to pass to callback function.
    #[cfg_attr(feature = "v2_56", deprecated)]
    fn read_until_async<
        P: IsA<Cancellable>,
        Q: FnOnce(Result<(GString, usize), glib::Error>) + Send + 'static,
    >(
        &self,
        stop_chars: &str,
        io_priority: glib::Priority,
        cancellable: Option<&P>,
        callback: Q,
    );

    #[cfg_attr(feature = "v2_56", deprecated)]

    fn read_until_async_future(
        &self,
        stop_chars: &str,
        io_priority: glib::Priority,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(GString, usize), glib::Error>> + 'static>>;

    /// Reads a string from the data input stream, up to the first
    /// occurrence of any of the stop characters.
    ///
    /// In contrast to `DataInputStreamExt::read_until`, this function
    /// does not consume the stop character. You have to use
    /// `DataInputStreamExt::read_byte` to get it before calling
    /// `DataInputStreamExt::read_upto` again.
    ///
    /// Note that `stop_chars` may contain '\0' if `stop_chars_len` is
    /// specified.
    ///
    /// The returned string will always be nul-terminated on success.
    /// ## `stop_chars`
    /// characters to terminate the read
    /// ## `stop_chars_len`
    /// length of `stop_chars`. May be -1 if `stop_chars` is
    ///  nul-terminated
    /// ## `length`
    /// a `gsize` to get the length of the data read in
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore
    ///
    /// # Returns
    ///
    /// a string with the data that was read
    ///  before encountering any of the stop characters. Set `length` to
    ///  a `gsize` to get the length of the string. This function will
    ///  return `None` on an error
    fn read_upto<P: IsA<Cancellable>>(
        &self,
        stop_chars: &str,
        cancellable: Option<&P>,
    ) -> Result<(GString, usize), glib::Error>;

    /// The asynchronous version of `DataInputStreamExt::read_upto`.
    /// It is an error to have two outstanding calls to this function.
    ///
    /// In contrast to `DataInputStreamExt::read_until`, this function
    /// does not consume the stop character. You have to use
    /// `DataInputStreamExt::read_byte` to get it before calling
    /// `DataInputStreamExt::read_upto` again.
    ///
    /// Note that `stop_chars` may contain '\0' if `stop_chars_len` is
    /// specified.
    ///
    /// When the operation is finished, `callback` will be called. You
    /// can then call `DataInputStreamExt::read_upto_finish` to get
    /// the result of the operation.
    /// ## `stop_chars`
    /// characters to terminate the read
    /// ## `stop_chars_len`
    /// length of `stop_chars`. May be -1 if `stop_chars` is
    ///  nul-terminated
    /// ## `io_priority`
    /// the [I/O priority][io-priority] of the request
    /// ## `cancellable`
    /// optional `Cancellable` object, `None` to ignore
    /// ## `callback`
    /// callback to call when the request is satisfied
    /// ## `user_data`
    /// the data to pass to callback function
    fn read_upto_async<
        P: IsA<Cancellable>,
        Q: FnOnce(Result<(GString, usize), glib::Error>) + Send + 'static,
    >(
        &self,
        stop_chars: &str,
        io_priority: glib::Priority,
        cancellable: Option<&P>,
        callback: Q,
    );

    fn read_upto_async_future(
        &self,
        stop_chars: &str,
        io_priority: glib::Priority,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(GString, usize), glib::Error>> + 'static>>;

    /// This function sets the byte order for the given `self`. All subsequent
    /// reads from the `self` will be read in the given `order`.
    /// ## `order`
    /// a `DataStreamByteOrder` to set.
    fn set_byte_order(&self, order: DataStreamByteOrder);

    /// Sets the newline type for the `self`.
    ///
    /// Note that using G_DATA_STREAM_NEWLINE_TYPE_ANY is slightly unsafe. If a read
    /// chunk ends in "CR" we must read an additional byte to know if this is "CR" or
    /// "CR LF", and this might block if there is no more data available.
    /// ## `type_`
    /// the type of new line return as `DataStreamNewlineType`.
    fn set_newline_type(&self, type_: DataStreamNewlineType);

    fn connect_property_byte_order_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_property_newline_type_notify<F: Fn(&Self) + 'static>(&self, f: F)
        -> SignalHandlerId;
}

impl<O: IsA<DataInputStream>> DataInputStreamExt for O {
    fn get_byte_order(&self) -> DataStreamByteOrder {
        unsafe {
            from_glib(gio_sys::g_data_input_stream_get_byte_order(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_newline_type(&self) -> DataStreamNewlineType {
        unsafe {
            from_glib(gio_sys::g_data_input_stream_get_newline_type(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn read_byte<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<u8, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_byte(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(ret)
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn read_int16<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<i16, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_int16(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(ret)
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn read_int32<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<i32, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_int32(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(ret)
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn read_int64<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<i64, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_int64(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(ret)
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    //fn read_line_finish_utf8(&self, result: /*Ignored*/&AsyncResult) -> Result<(Option<GString>, usize), glib::Error> {
    //    unsafe { TODO: call gio_sys:g_data_input_stream_read_line_finish_utf8() }
    //}

    fn read_line_utf8<P: IsA<Cancellable>>(
        &self,
        cancellable: Option<&P>,
    ) -> Result<(Option<GString>, usize), glib::Error> {
        unsafe {
            let mut length = mem::MaybeUninit::uninit();
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_line_utf8(
                self.as_ref().to_glib_none().0,
                length.as_mut_ptr(),
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            let length = length.assume_init();
            if error.is_null() {
                Ok((from_glib_full(ret), length))
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn read_uint16<P: IsA<Cancellable>>(
        &self,
        cancellable: Option<&P>,
    ) -> Result<u16, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_uint16(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(ret)
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn read_uint32<P: IsA<Cancellable>>(
        &self,
        cancellable: Option<&P>,
    ) -> Result<u32, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_uint32(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(ret)
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn read_uint64<P: IsA<Cancellable>>(
        &self,
        cancellable: Option<&P>,
    ) -> Result<u64, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_uint64(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(ret)
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn read_until<P: IsA<Cancellable>>(
        &self,
        stop_chars: &str,
        cancellable: Option<&P>,
    ) -> Result<(GString, usize), glib::Error> {
        unsafe {
            let mut length = mem::MaybeUninit::uninit();
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_until(
                self.as_ref().to_glib_none().0,
                stop_chars.to_glib_none().0,
                length.as_mut_ptr(),
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            let length = length.assume_init();
            if error.is_null() {
                Ok((from_glib_full(ret), length))
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn read_until_async<
        P: IsA<Cancellable>,
        Q: FnOnce(Result<(GString, usize), glib::Error>) + Send + 'static,
    >(
        &self,
        stop_chars: &str,
        io_priority: glib::Priority,
        cancellable: Option<&P>,
        callback: Q,
    ) {
        let user_data: Box_<Q> = Box_::new(callback);
        unsafe extern "C" fn read_until_async_trampoline<
            Q: FnOnce(Result<(GString, usize), glib::Error>) + Send + 'static,
        >(
            _source_object: *mut gobject_sys::GObject,
            res: *mut gio_sys::GAsyncResult,
            user_data: glib_sys::gpointer,
        ) {
            let mut error = ptr::null_mut();
            let mut length = mem::MaybeUninit::uninit();
            let ret = gio_sys::g_data_input_stream_read_until_finish(
                _source_object as *mut _,
                res,
                length.as_mut_ptr(),
                &mut error,
            );
            let length = length.assume_init();
            let result = if error.is_null() {
                Ok((from_glib_full(ret), length))
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<Q> = Box_::from_raw(user_data as *mut _);
            callback(result);
        }
        let callback = read_until_async_trampoline::<Q>;
        unsafe {
            gio_sys::g_data_input_stream_read_until_async(
                self.as_ref().to_glib_none().0,
                stop_chars.to_glib_none().0,
                io_priority.to_glib(),
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                Some(callback),
                Box_::into_raw(user_data) as *mut _,
            );
        }
    }

    fn read_until_async_future(
        &self,
        stop_chars: &str,
        io_priority: glib::Priority,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(GString, usize), glib::Error>> + 'static>>
    {
        let stop_chars = String::from(stop_chars);
        Box_::pin(crate::GioFuture::new(self, move |obj, send| {
            let cancellable = Cancellable::new();
            obj.read_until_async(&stop_chars, io_priority, Some(&cancellable), move |res| {
                send.resolve(res);
            });

            cancellable
        }))
    }

    fn read_upto<P: IsA<Cancellable>>(
        &self,
        stop_chars: &str,
        cancellable: Option<&P>,
    ) -> Result<(GString, usize), glib::Error> {
        let stop_chars_len = stop_chars.len() as isize;
        unsafe {
            let mut length = mem::MaybeUninit::uninit();
            let mut error = ptr::null_mut();
            let ret = gio_sys::g_data_input_stream_read_upto(
                self.as_ref().to_glib_none().0,
                stop_chars.to_glib_none().0,
                stop_chars_len,
                length.as_mut_ptr(),
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            let length = length.assume_init();
            if error.is_null() {
                Ok((from_glib_full(ret), length))
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn read_upto_async<
        P: IsA<Cancellable>,
        Q: FnOnce(Result<(GString, usize), glib::Error>) + Send + 'static,
    >(
        &self,
        stop_chars: &str,
        io_priority: glib::Priority,
        cancellable: Option<&P>,
        callback: Q,
    ) {
        let stop_chars_len = stop_chars.len() as isize;
        let user_data: Box_<Q> = Box_::new(callback);
        unsafe extern "C" fn read_upto_async_trampoline<
            Q: FnOnce(Result<(GString, usize), glib::Error>) + Send + 'static,
        >(
            _source_object: *mut gobject_sys::GObject,
            res: *mut gio_sys::GAsyncResult,
            user_data: glib_sys::gpointer,
        ) {
            let mut error = ptr::null_mut();
            let mut length = mem::MaybeUninit::uninit();
            let ret = gio_sys::g_data_input_stream_read_upto_finish(
                _source_object as *mut _,
                res,
                length.as_mut_ptr(),
                &mut error,
            );
            let length = length.assume_init();
            let result = if error.is_null() {
                Ok((from_glib_full(ret), length))
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<Q> = Box_::from_raw(user_data as *mut _);
            callback(result);
        }
        let callback = read_upto_async_trampoline::<Q>;
        unsafe {
            gio_sys::g_data_input_stream_read_upto_async(
                self.as_ref().to_glib_none().0,
                stop_chars.to_glib_none().0,
                stop_chars_len,
                io_priority.to_glib(),
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                Some(callback),
                Box_::into_raw(user_data) as *mut _,
            );
        }
    }

    fn read_upto_async_future(
        &self,
        stop_chars: &str,
        io_priority: glib::Priority,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(GString, usize), glib::Error>> + 'static>>
    {
        let stop_chars = String::from(stop_chars);
        Box_::pin(crate::GioFuture::new(self, move |obj, send| {
            let cancellable = Cancellable::new();
            obj.read_upto_async(&stop_chars, io_priority, Some(&cancellable), move |res| {
                send.resolve(res);
            });

            cancellable
        }))
    }

    fn set_byte_order(&self, order: DataStreamByteOrder) {
        unsafe {
            gio_sys::g_data_input_stream_set_byte_order(
                self.as_ref().to_glib_none().0,
                order.to_glib(),
            );
        }
    }

    fn set_newline_type(&self, type_: DataStreamNewlineType) {
        unsafe {
            gio_sys::g_data_input_stream_set_newline_type(
                self.as_ref().to_glib_none().0,
                type_.to_glib(),
            );
        }
    }

    fn connect_property_byte_order_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_byte_order_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gio_sys::GDataInputStream,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<DataInputStream>,
        {
            let f: &F = &*(f as *const F);
            f(&DataInputStream::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::byte-order\0".as_ptr() as *const _,
                Some(transmute(notify_byte_order_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_newline_type_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_newline_type_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gio_sys::GDataInputStream,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<DataInputStream>,
        {
            let f: &F = &*(f as *const F);
            f(&DataInputStream::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::newline-type\0".as_ptr() as *const _,
                Some(transmute(
                    notify_newline_type_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for DataInputStream {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "DataInputStream")
    }
}