gio/auto/

unix_connection.rs

// 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 crate::{ffi, AsyncResult, Cancellable, Credentials, IOStream, SocketConnection};
use glib::{prelude::*, translate::*};
use std::{boxed::Box as Box_, pin::Pin};

glib::wrapper! {
    /// This is the subclass of [`SocketConnection`][crate::SocketConnection] that is created
    /// for UNIX domain sockets.
    ///
    /// It contains functions to do some of the UNIX socket specific
    /// functionality like passing file descriptors.
    ///
    /// Since GLib 2.72, `GUnixConnection` is available on all platforms. It requires
    /// underlying system support (such as Windows 10 with `AF_UNIX`) at run time.
    ///
    /// Before GLib 2.72, `<gio/gunixconnection.h>` belonged to the UNIX-specific GIO
    /// interfaces, thus you had to use the `gio-unix-2.0.pc` pkg-config file when
    /// using it. This is no longer necessary since GLib 2.72.
    ///
    /// # Implements
    ///
    /// [`UnixConnectionExt`][trait@crate::prelude::UnixConnectionExt], [`SocketConnectionExt`][trait@crate::prelude::SocketConnectionExt], [`IOStreamExt`][trait@crate::prelude::IOStreamExt], [`trait@glib::ObjectExt`], [`IOStreamExtManual`][trait@crate::prelude::IOStreamExtManual]
    #[doc(alias = "GUnixConnection")]
    pub struct UnixConnection(Object<ffi::GUnixConnection, ffi::GUnixConnectionClass>) @extends SocketConnection, IOStream;

    match fn {
        type_ => || ffi::g_unix_connection_get_type(),
    }
}

impl UnixConnection {
    pub const NONE: Option<&'static UnixConnection> = None;
}

mod sealed {
    pub trait Sealed {}
    impl<T: super::IsA<super::UnixConnection>> Sealed for T {}
}

/// Trait containing all [`struct@UnixConnection`] methods.
///
/// # Implementors
///
/// [`UnixConnection`][struct@crate::UnixConnection]
pub trait UnixConnectionExt: IsA<UnixConnection> + sealed::Sealed + 'static {
    /// Receives credentials from the sending end of the connection.  The
    /// sending end has to call g_unix_connection_send_credentials() (or
    /// similar) for this to work.
    ///
    /// As well as reading the credentials this also reads (and discards) a
    /// single byte from the stream, as this is required for credentials
    /// passing to work on some implementations.
    ///
    /// This method can be expected to be available on the following platforms:
    ///
    /// - Linux since GLib 2.26
    /// - FreeBSD since GLib 2.26
    /// - GNU/kFreeBSD since GLib 2.36
    /// - Solaris, Illumos and OpenSolaris since GLib 2.40
    /// - GNU/Hurd since GLib 2.40
    ///
    /// Other ways to exchange credentials with a foreign peer includes the
    /// #GUnixCredentialsMessage type and g_socket_get_credentials() function.
    /// ## `cancellable`
    /// A #GCancellable or [`None`].
    ///
    /// # Returns
    ///
    /// Received credentials on success (free with
    /// g_object_unref()), [`None`] if @error is set.
    #[doc(alias = "g_unix_connection_receive_credentials")]
    fn receive_credentials(
        &self,
        cancellable: Option<&impl IsA<Cancellable>>,
    ) -> Result<Credentials, glib::Error> {
        unsafe {
            let mut error = std::ptr::null_mut();
            let ret = ffi::g_unix_connection_receive_credentials(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(from_glib_full(ret))
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    /// Asynchronously receive credentials.
    ///
    /// For more details, see g_unix_connection_receive_credentials() which is
    /// the synchronous version of this call.
    ///
    /// When the operation is finished, @callback will be called. You can then call
    /// g_unix_connection_receive_credentials_finish() to get the result of the operation.
    /// ## `cancellable`
    /// optional #GCancellable object, [`None`] to ignore.
    /// ## `callback`
    /// a #GAsyncReadyCallback
    ///   to call when the request is satisfied
    #[doc(alias = "g_unix_connection_receive_credentials_async")]
    fn receive_credentials_async<P: FnOnce(Result<Credentials, glib::Error>) + 'static>(
        &self,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    ) {
        let main_context = glib::MainContext::ref_thread_default();
        let is_main_context_owner = main_context.is_owner();
        let has_acquired_main_context = (!is_main_context_owner)
            .then(|| main_context.acquire().ok())
            .flatten();
        assert!(
            is_main_context_owner || has_acquired_main_context.is_some(),
            "Async operations only allowed if the thread is owning the MainContext"
        );

        let user_data: Box_<glib::thread_guard::ThreadGuard<P>> =
            Box_::new(glib::thread_guard::ThreadGuard::new(callback));
        unsafe extern "C" fn receive_credentials_async_trampoline<
            P: FnOnce(Result<Credentials, glib::Error>) + 'static,
        >(
            _source_object: *mut glib::gobject_ffi::GObject,
            res: *mut crate::ffi::GAsyncResult,
            user_data: glib::ffi::gpointer,
        ) {
            let mut error = std::ptr::null_mut();
            let ret = ffi::g_unix_connection_receive_credentials_finish(
                _source_object as *mut _,
                res,
                &mut error,
            );
            let result = if error.is_null() {
                Ok(from_glib_full(ret))
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<glib::thread_guard::ThreadGuard<P>> =
                Box_::from_raw(user_data as *mut _);
            let callback: P = callback.into_inner();
            callback(result);
        }
        let callback = receive_credentials_async_trampoline::<P>;
        unsafe {
            ffi::g_unix_connection_receive_credentials_async(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                Some(callback),
                Box_::into_raw(user_data) as *mut _,
            );
        }
    }

    fn receive_credentials_future(
        &self,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<Credentials, glib::Error>> + 'static>>
    {
        Box_::pin(crate::GioFuture::new(
            self,
            move |obj, cancellable, send| {
                obj.receive_credentials_async(Some(cancellable), move |res| {
                    send.resolve(res);
                });
            },
        ))
    }

    /// Receives a file descriptor from the sending end of the connection.
    /// The sending end has to call g_unix_connection_send_fd() for this
    /// to work.
    ///
    /// As well as reading the fd this also reads a single byte from the
    /// stream, as this is required for fd passing to work on some
    /// implementations.
    /// ## `cancellable`
    /// optional #GCancellable object, [`None`] to ignore
    ///
    /// # Returns
    ///
    /// a file descriptor on success, -1 on error.
    #[doc(alias = "g_unix_connection_receive_fd")]
    fn receive_fd(&self, cancellable: Option<&impl IsA<Cancellable>>) -> Result<i32, glib::Error> {
        unsafe {
            let mut error = std::ptr::null_mut();
            let ret = ffi::g_unix_connection_receive_fd(
                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))
            }
        }
    }

    /// Passes the credentials of the current user the receiving side
    /// of the connection. The receiving end has to call
    /// g_unix_connection_receive_credentials() (or similar) to accept the
    /// credentials.
    ///
    /// As well as sending the credentials this also writes a single NUL
    /// byte to the stream, as this is required for credentials passing to
    /// work on some implementations.
    ///
    /// This method can be expected to be available on the following platforms:
    ///
    /// - Linux since GLib 2.26
    /// - FreeBSD since GLib 2.26
    /// - GNU/kFreeBSD since GLib 2.36
    /// - Solaris, Illumos and OpenSolaris since GLib 2.40
    /// - GNU/Hurd since GLib 2.40
    ///
    /// Other ways to exchange credentials with a foreign peer includes the
    /// #GUnixCredentialsMessage type and g_socket_get_credentials() function.
    /// ## `cancellable`
    /// A #GCancellable or [`None`].
    ///
    /// # Returns
    ///
    /// [`true`] on success, [`false`] if @error is set.
    #[doc(alias = "g_unix_connection_send_credentials")]
    fn send_credentials(
        &self,
        cancellable: Option<&impl IsA<Cancellable>>,
    ) -> Result<(), glib::Error> {
        unsafe {
            let mut error = std::ptr::null_mut();
            let is_ok = ffi::g_unix_connection_send_credentials(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            debug_assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
            if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    /// Asynchronously send credentials.
    ///
    /// For more details, see g_unix_connection_send_credentials() which is
    /// the synchronous version of this call.
    ///
    /// When the operation is finished, @callback will be called. You can then call
    /// g_unix_connection_send_credentials_finish() to get the result of the operation.
    /// ## `cancellable`
    /// optional #GCancellable object, [`None`] to ignore.
    /// ## `callback`
    /// a #GAsyncReadyCallback
    ///   to call when the request is satisfied
    #[doc(alias = "g_unix_connection_send_credentials_async")]
    fn send_credentials_async<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    ) {
        let main_context = glib::MainContext::ref_thread_default();
        let is_main_context_owner = main_context.is_owner();
        let has_acquired_main_context = (!is_main_context_owner)
            .then(|| main_context.acquire().ok())
            .flatten();
        assert!(
            is_main_context_owner || has_acquired_main_context.is_some(),
            "Async operations only allowed if the thread is owning the MainContext"
        );

        let user_data: Box_<glib::thread_guard::ThreadGuard<P>> =
            Box_::new(glib::thread_guard::ThreadGuard::new(callback));
        unsafe extern "C" fn send_credentials_async_trampoline<
            P: FnOnce(Result<(), glib::Error>) + 'static,
        >(
            _source_object: *mut glib::gobject_ffi::GObject,
            res: *mut crate::ffi::GAsyncResult,
            user_data: glib::ffi::gpointer,
        ) {
            let mut error = std::ptr::null_mut();
            let _ = ffi::g_unix_connection_send_credentials_finish(
                _source_object as *mut _,
                res,
                &mut error,
            );
            let result = if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<glib::thread_guard::ThreadGuard<P>> =
                Box_::from_raw(user_data as *mut _);
            let callback: P = callback.into_inner();
            callback(result);
        }
        let callback = send_credentials_async_trampoline::<P>;
        unsafe {
            ffi::g_unix_connection_send_credentials_async(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                Some(callback),
                Box_::into_raw(user_data) as *mut _,
            );
        }
    }

    fn send_credentials_future(
        &self,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {
        Box_::pin(crate::GioFuture::new(
            self,
            move |obj, cancellable, send| {
                obj.send_credentials_async(Some(cancellable), move |res| {
                    send.resolve(res);
                });
            },
        ))
    }

    /// Passes a file descriptor to the receiving side of the
    /// connection. The receiving end has to call g_unix_connection_receive_fd()
    /// to accept the file descriptor.
    ///
    /// As well as sending the fd this also writes a single byte to the
    /// stream, as this is required for fd passing to work on some
    /// implementations.
    /// ## `fd`
    /// a file descriptor
    /// ## `cancellable`
    /// optional #GCancellable object, [`None`] to ignore.
    ///
    /// # Returns
    ///
    /// a [`true`] on success, [`None`] on error.
    #[doc(alias = "g_unix_connection_send_fd")]
    fn send_fd(
        &self,
        fd: i32,
        cancellable: Option<&impl IsA<Cancellable>>,
    ) -> Result<(), glib::Error> {
        unsafe {
            let mut error = std::ptr::null_mut();
            let is_ok = ffi::g_unix_connection_send_fd(
                self.as_ref().to_glib_none().0,
                fd,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            debug_assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
            if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            }
        }
    }
}

impl<O: IsA<UnixConnection>> UnixConnectionExt for O {}