gio/auto/
memory_monitor.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
5use crate::{Initable, MemoryMonitorWarningLevel, ffi};
6use glib::{
7    object::ObjectType as _,
8    prelude::*,
9    signal::{SignalHandlerId, connect_raw},
10    translate::*,
11};
12use std::boxed::Box as Box_;
13
14glib::wrapper! {
15    /// t forget to disconnect the [`low-memory-warning`][struct@crate::MemoryMonitor#low-memory-warning]
16    /// signal, and unref the `GMemoryMonitor` itself when exiting.
17    ///
18    /// ## Signals
19    ///
20    ///
21    /// #### `low-memory-warning`
22    ///  Emitted when the system is running low on free memory.
23    ///
24    /// The signal
25    /// handler should then take the appropriate action depending on the
26    /// warning level. See the #GMemoryMonitorWarningLevel documentation for
27    /// details.
28    ///
29    /// Since the [`MemoryMonitor`][crate::MemoryMonitor] is a singleton, this signal will be
30    /// emitted in the [`glib::MainContext::default()`][crate::glib::MainContext::default()][global-default main
31    /// context].
32    ///
33    ///
34    ///
35    /// # Implements
36    ///
37    /// [`MemoryMonitorExt`][trait@crate::prelude::MemoryMonitorExt], [`InitableExt`][trait@crate::prelude::InitableExt]
38    #[doc(alias = "GMemoryMonitor")]
39    pub struct MemoryMonitor(Interface<ffi::GMemoryMonitor, ffi::GMemoryMonitorInterface>) @requires Initable;
40
41    match fn {
42        type_ => || ffi::g_memory_monitor_get_type(),
43    }
44}
45
46impl MemoryMonitor {
47    pub const NONE: Option<&'static MemoryMonitor> = None;
48
49    /// Gets a reference to the default #GMemoryMonitor for the system.
50    ///
51    /// # Returns
52    ///
53    /// a new reference to the default #GMemoryMonitor
54    #[doc(alias = "g_memory_monitor_dup_default")]
55    pub fn dup_default() -> MemoryMonitor {
56        unsafe { from_glib_full(ffi::g_memory_monitor_dup_default()) }
57    }
58}
59
60/// Trait containing all [`struct@MemoryMonitor`] methods.
61///
62/// # Implementors
63///
64/// [`MemoryMonitor`][struct@crate::MemoryMonitor]
65pub trait MemoryMonitorExt: IsA<MemoryMonitor> + 'static {
66    /// Emitted when the system is running low on free memory.
67    ///
68    /// The signal
69    /// handler should then take the appropriate action depending on the
70    /// warning level. See the #GMemoryMonitorWarningLevel documentation for
71    /// details.
72    ///
73    /// Since the [`MemoryMonitor`][crate::MemoryMonitor] is a singleton, this signal will be
74    /// emitted in the [`glib::MainContext::default()`][crate::glib::MainContext::default()][global-default main
75    /// context].
76    /// ## `level`
77    /// the #GMemoryMonitorWarningLevel warning level
78    #[cfg(feature = "v2_64")]
79    #[cfg_attr(docsrs, doc(cfg(feature = "v2_64")))]
80    #[doc(alias = "low-memory-warning")]
81    fn connect_low_memory_warning<F: Fn(&Self, MemoryMonitorWarningLevel) + 'static>(
82        &self,
83        f: F,
84    ) -> SignalHandlerId {
85        unsafe extern "C" fn low_memory_warning_trampoline<
86            P: IsA<MemoryMonitor>,
87            F: Fn(&P, MemoryMonitorWarningLevel) + 'static,
88        >(
89            this: *mut ffi::GMemoryMonitor,
90            level: ffi::GMemoryMonitorWarningLevel,
91            f: glib::ffi::gpointer,
92        ) {
93            unsafe {
94                let f: &F = &*(f as *const F);
95                f(
96                    MemoryMonitor::from_glib_borrow(this).unsafe_cast_ref(),
97                    from_glib(level),
98                )
99            }
100        }
101        unsafe {
102            let f: Box_<F> = Box_::new(f);
103            connect_raw(
104                self.as_ptr() as *mut _,
105                c"low-memory-warning".as_ptr(),
106                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
107                    low_memory_warning_trampoline::<Self, F> as *const (),
108                )),
109                Box_::into_raw(f),
110            )
111        }
112    }
113}
114
115impl<O: IsA<MemoryMonitor>> MemoryMonitorExt for O {}
gio/auto/memory_monitor.rs

gio/auto/
memory_monitor.rs
