gio/auto/
buffered_input_stream.rs

1// This file was generated by gir (https://github.com/gtk-rs/gir)
2// from gir-files (https://github.com/gtk-rs/gir-files)
3// DO NOT EDIT
4
5#[cfg(feature = "futures")]
6use futures::future;
7use gio_sys;
8use glib;
9use glib::object::Cast;
10use glib::object::IsA;
11use glib::signal::connect_raw;
12use glib::signal::SignalHandlerId;
13use glib::translate::*;
14use glib::StaticType;
15use glib::ToValue;
16use glib_sys;
17use gobject_sys;
18use std::boxed::Box as Box_;
19use std::fmt;
20use std::mem;
21use std::mem::transmute;
22use std::ptr;
23use Cancellable;
24use Error;
25use FilterInputStream;
26use InputStream;
27use Seekable;
28
29glib_wrapper! {
30    pub struct BufferedInputStream(Object<gio_sys::GBufferedInputStream, gio_sys::GBufferedInputStreamClass, BufferedInputStreamClass>) @extends FilterInputStream, InputStream, @implements Seekable;
31
32    match fn {
33        get_type => || gio_sys::g_buffered_input_stream_get_type(),
34    }
35}
36
37impl BufferedInputStream {
38    pub fn new<P: IsA<InputStream>>(base_stream: &P) -> BufferedInputStream {
39        unsafe {
40            InputStream::from_glib_full(gio_sys::g_buffered_input_stream_new(
41                base_stream.as_ref().to_glib_none().0,
42            ))
43            .unsafe_cast()
44        }
45    }
46
47    pub fn new_sized<P: IsA<InputStream>>(base_stream: &P, size: usize) -> BufferedInputStream {
48        unsafe {
49            InputStream::from_glib_full(gio_sys::g_buffered_input_stream_new_sized(
50                base_stream.as_ref().to_glib_none().0,
51                size,
52            ))
53            .unsafe_cast()
54        }
55    }
56}
57
58pub struct BufferedInputStreamBuilder {
59    buffer_size: Option<u32>,
60    base_stream: Option<InputStream>,
61    close_base_stream: Option<bool>,
62}
63
64impl BufferedInputStreamBuilder {
65    pub fn new() -> Self {
66        Self {
67            buffer_size: None,
68            base_stream: None,
69            close_base_stream: None,
70        }
71    }
72
73    pub fn build(self) -> BufferedInputStream {
74        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
75        if let Some(ref buffer_size) = self.buffer_size {
76            properties.push(("buffer-size", buffer_size));
77        }
78        if let Some(ref base_stream) = self.base_stream {
79            properties.push(("base-stream", base_stream));
80        }
81        if let Some(ref close_base_stream) = self.close_base_stream {
82            properties.push(("close-base-stream", close_base_stream));
83        }
84        glib::Object::new(BufferedInputStream::static_type(), &properties)
85            .expect("object new")
86            .downcast()
87            .expect("downcast")
88    }
89
90    pub fn buffer_size(mut self, buffer_size: u32) -> Self {
91        self.buffer_size = Some(buffer_size);
92        self
93    }
94
95    pub fn base_stream(mut self, base_stream: &InputStream) -> Self {
96        self.base_stream = Some(base_stream.clone());
97        self
98    }
99
100    pub fn close_base_stream(mut self, close_base_stream: bool) -> Self {
101        self.close_base_stream = Some(close_base_stream);
102        self
103    }
104}
105
106pub const NONE_BUFFERED_INPUT_STREAM: Option<&BufferedInputStream> = None;
107
108pub trait BufferedInputStreamExt: 'static {
109    fn fill<P: IsA<Cancellable>>(
110        &self,
111        count: isize,
112        cancellable: Option<&P>,
113    ) -> Result<isize, Error>;
114
115    fn fill_async<P: IsA<Cancellable>, Q: FnOnce(Result<isize, Error>) + Send + 'static>(
116        &self,
117        count: isize,
118        io_priority: glib::Priority,
119        cancellable: Option<&P>,
120        callback: Q,
121    );
122
123    #[cfg(feature = "futures")]
124    fn fill_async_future(
125        &self,
126        count: isize,
127        io_priority: glib::Priority,
128    ) -> Box_<dyn future::Future<Output = Result<isize, Error>> + std::marker::Unpin>;
129
130    fn get_available(&self) -> usize;
131
132    fn get_buffer_size(&self) -> usize;
133
134    fn peek_buffer(&self) -> Vec<u8>;
135
136    fn read_byte<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<i32, Error>;
137
138    fn set_buffer_size(&self, size: usize);
139
140    fn connect_property_buffer_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
141}
142
143impl<O: IsA<BufferedInputStream>> BufferedInputStreamExt for O {
144    fn fill<P: IsA<Cancellable>>(
145        &self,
146        count: isize,
147        cancellable: Option<&P>,
148    ) -> Result<isize, Error> {
149        unsafe {
150            let mut error = ptr::null_mut();
151            let ret = gio_sys::g_buffered_input_stream_fill(
152                self.as_ref().to_glib_none().0,
153                count,
154                cancellable.map(|p| p.as_ref()).to_glib_none().0,
155                &mut error,
156            );
157            if error.is_null() {
158                Ok(ret)
159            } else {
160                Err(from_glib_full(error))
161            }
162        }
163    }
164
165    fn fill_async<P: IsA<Cancellable>, Q: FnOnce(Result<isize, Error>) + Send + 'static>(
166        &self,
167        count: isize,
168        io_priority: glib::Priority,
169        cancellable: Option<&P>,
170        callback: Q,
171    ) {
172        let user_data: Box<Q> = Box::new(callback);
173        unsafe extern "C" fn fill_async_trampoline<
174            Q: FnOnce(Result<isize, Error>) + Send + 'static,
175        >(
176            _source_object: *mut gobject_sys::GObject,
177            res: *mut gio_sys::GAsyncResult,
178            user_data: glib_sys::gpointer,
179        ) {
180            let mut error = ptr::null_mut();
181            let ret = gio_sys::g_buffered_input_stream_fill_finish(
182                _source_object as *mut _,
183                res,
184                &mut error,
185            );
186            let result = if error.is_null() {
187                Ok(ret)
188            } else {
189                Err(from_glib_full(error))
190            };
191            let callback: Box<Q> = Box::from_raw(user_data as *mut _);
192            callback(result);
193        }
194        let callback = fill_async_trampoline::<Q>;
195        unsafe {
196            gio_sys::g_buffered_input_stream_fill_async(
197                self.as_ref().to_glib_none().0,
198                count,
199                io_priority.to_glib(),
200                cancellable.map(|p| p.as_ref()).to_glib_none().0,
201                Some(callback),
202                Box::into_raw(user_data) as *mut _,
203            );
204        }
205    }
206
207    #[cfg(feature = "futures")]
208    fn fill_async_future(
209        &self,
210        count: isize,
211        io_priority: glib::Priority,
212    ) -> Box_<dyn future::Future<Output = Result<isize, Error>> + std::marker::Unpin> {
213        use fragile::Fragile;
214        use GioFuture;
215
216        GioFuture::new(self, move |obj, send| {
217            let cancellable = Cancellable::new();
218            let send = Fragile::new(send);
219            obj.fill_async(count, io_priority, Some(&cancellable), move |res| {
220                let _ = send.into_inner().send(res);
221            });
222
223            cancellable
224        })
225    }
226
227    fn get_available(&self) -> usize {
228        unsafe { gio_sys::g_buffered_input_stream_get_available(self.as_ref().to_glib_none().0) }
229    }
230
231    fn get_buffer_size(&self) -> usize {
232        unsafe { gio_sys::g_buffered_input_stream_get_buffer_size(self.as_ref().to_glib_none().0) }
233    }
234
235    fn peek_buffer(&self) -> Vec<u8> {
236        unsafe {
237            let mut count = mem::uninitialized();
238            let ret = FromGlibContainer::from_glib_none_num(
239                gio_sys::g_buffered_input_stream_peek_buffer(
240                    self.as_ref().to_glib_none().0,
241                    &mut count,
242                ),
243                count as usize,
244            );
245            ret
246        }
247    }
248
249    fn read_byte<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<i32, Error> {
250        unsafe {
251            let mut error = ptr::null_mut();
252            let ret = gio_sys::g_buffered_input_stream_read_byte(
253                self.as_ref().to_glib_none().0,
254                cancellable.map(|p| p.as_ref()).to_glib_none().0,
255                &mut error,
256            );
257            if error.is_null() {
258                Ok(ret)
259            } else {
260                Err(from_glib_full(error))
261            }
262        }
263    }
264
265    fn set_buffer_size(&self, size: usize) {
266        unsafe {
267            gio_sys::g_buffered_input_stream_set_buffer_size(self.as_ref().to_glib_none().0, size);
268        }
269    }
270
271    fn connect_property_buffer_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
272        unsafe extern "C" fn notify_buffer_size_trampoline<P, F: Fn(&P) + 'static>(
273            this: *mut gio_sys::GBufferedInputStream,
274            _param_spec: glib_sys::gpointer,
275            f: glib_sys::gpointer,
276        ) where
277            P: IsA<BufferedInputStream>,
278        {
279            let f: &F = &*(f as *const F);
280            f(&BufferedInputStream::from_glib_borrow(this).unsafe_cast())
281        }
282        unsafe {
283            let f: Box_<F> = Box_::new(f);
284            connect_raw(
285                self.as_ptr() as *mut _,
286                b"notify::buffer-size\0".as_ptr() as *const _,
287                Some(transmute(notify_buffer_size_trampoline::<Self, F> as usize)),
288                Box_::into_raw(f),
289            )
290        }
291    }
292}
293
294impl fmt::Display for BufferedInputStream {
295    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
296        write!(f, "BufferedInputStream")
297    }
298}