gio/auto/
memory_output_stream.rs1use gio_sys;
6use glib;
7use glib::object::Cast;
8use glib::object::IsA;
9use glib::signal::connect_raw;
10use glib::signal::SignalHandlerId;
11use glib::translate::*;
12use glib_sys;
13use std::boxed::Box as Box_;
14use std::fmt;
15use std::mem::transmute;
16use OutputStream;
17use PollableOutputStream;
18use Seekable;
19
20glib_wrapper! {
21 pub struct MemoryOutputStream(Object<gio_sys::GMemoryOutputStream, gio_sys::GMemoryOutputStreamClass, MemoryOutputStreamClass>) @extends OutputStream, @implements PollableOutputStream, Seekable;
22
23 match fn {
24 get_type => || gio_sys::g_memory_output_stream_get_type(),
25 }
26}
27
28impl MemoryOutputStream {
29 pub fn new_resizable() -> MemoryOutputStream {
30 unsafe {
31 OutputStream::from_glib_full(gio_sys::g_memory_output_stream_new_resizable())
32 .unsafe_cast()
33 }
34 }
35}
36
37pub const NONE_MEMORY_OUTPUT_STREAM: Option<&MemoryOutputStream> = None;
38
39pub trait MemoryOutputStreamExt: 'static {
40 fn get_data_size(&self) -> usize;
41
42 fn steal_as_bytes(&self) -> Option<glib::Bytes>;
43
44 fn connect_property_data_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
45}
46
47impl<O: IsA<MemoryOutputStream>> MemoryOutputStreamExt for O {
48 fn get_data_size(&self) -> usize {
49 unsafe { gio_sys::g_memory_output_stream_get_data_size(self.as_ref().to_glib_none().0) }
50 }
51
52 fn steal_as_bytes(&self) -> Option<glib::Bytes> {
53 unsafe {
54 from_glib_full(gio_sys::g_memory_output_stream_steal_as_bytes(
55 self.as_ref().to_glib_none().0,
56 ))
57 }
58 }
59
60 fn connect_property_data_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
61 unsafe extern "C" fn notify_data_size_trampoline<P, F: Fn(&P) + 'static>(
62 this: *mut gio_sys::GMemoryOutputStream,
63 _param_spec: glib_sys::gpointer,
64 f: glib_sys::gpointer,
65 ) where
66 P: IsA<MemoryOutputStream>,
67 {
68 let f: &F = &*(f as *const F);
69 f(&MemoryOutputStream::from_glib_borrow(this).unsafe_cast())
70 }
71 unsafe {
72 let f: Box_<F> = Box_::new(f);
73 connect_raw(
74 self.as_ptr() as *mut _,
75 b"notify::data-size\0".as_ptr() as *const _,
76 Some(transmute(notify_data_size_trampoline::<Self, F> as usize)),
77 Box_::into_raw(f),
78 )
79 }
80 }
81}
82
83impl fmt::Display for MemoryOutputStream {
84 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
85 write!(f, "MemoryOutputStream")
86 }
87}