perf counter for render

tui/src/lib.rs

@@ -7,6 +7,9 @@ pub(crate) use tek_output::*;
 pub use ::tek_edn;
 pub(crate) use ::tek_edn::*;
 
+pub use ::tek_time;
+pub(crate) use ::tek_time::*;
+
 mod tui_engine;  pub use self::tui_engine::*;
 mod tui_content; pub use self::tui_content::*;
 mod tui_input;   pub use self::tui_input::*;
@@ -39,37 +42,6 @@ pub(crate) use std::ffi::OsString;
     };
 }
 
-pub trait Gettable<T> {
-    /// Returns current value
-    fn get (&self) -> T;
-}
-
-pub trait Mutable<T>: Gettable<T> {
-    /// Sets new value, returns old
-    fn set (&mut self, value: T) -> T;
-}
-
-pub trait InteriorMutable<T>: Gettable<T> {
-    /// Sets new value, returns old
-    fn set (&self, value: T) -> T;
-}
-
-impl Gettable<bool> for AtomicBool {
-    fn get (&self) -> bool { self.load(Relaxed) }
-}
-
-impl InteriorMutable<bool> for AtomicBool {
-    fn set (&self, value: bool) -> bool { self.swap(value, Relaxed) }
-}
-
-impl Gettable<usize> for AtomicUsize {
-    fn get (&self) -> usize { self.load(Relaxed) }
-}
-
-impl InteriorMutable<usize> for AtomicUsize {
-    fn set (&self, value: usize) -> usize { self.swap(value, Relaxed) }
-}
-
 pub use ::better_panic; pub(crate) use better_panic::{Settings, Verbosity};
 pub use ::palette; pub(crate) use ::palette::{*, convert::*, okhsl::*};
 
@@ -89,7 +61,6 @@ pub(crate) use ratatui::{
     buffer::Cell
 };
 
-
 #[cfg(test)] #[test] fn test_tui_engine () -> Usually<()> {
     use crate::*;
     use std::sync::{Arc, RwLock};

tui/src/tui_engine.rs

@@ -5,6 +5,7 @@ pub struct Tui {
     pub backend: CrosstermBackend<Stdout>,
     pub buffer:  Buffer,
     pub area:    [u16;4],
+    pub perf:    PerfModel,
 }
 
 impl Tui {
@@ -17,6 +18,7 @@ impl Tui {
             buffer:  Buffer::empty(Rect { x: 0, y: 0, width, height }),
             area:    [0, 0, width, height],
             backend,
+            perf: Default::default(),
         })))
     }
     /// True if done

tui/src/tui_run.rs

@@ -62,6 +62,7 @@ impl<T: Render<TuiOut> + Handle<TuiIn> + Sized + 'static> TuiRun<T> for Arc<RwLo
             if exited.fetch_and(true, Relaxed) {
                 break
             }
+            let t0 = engine.read().unwrap().perf.get_t0();
             let Size { width, height } = engine.read().unwrap().backend.size()
                 .expect("get size failed");
             if let Ok(state) = state.try_read() {
@@ -76,6 +77,8 @@ impl<T: Render<TuiOut> + Handle<TuiIn> + Sized + 'static> TuiRun<T> for Arc<RwLo
                 state.render(&mut output);
                 buffer = engine.write().unwrap().flip(output.buffer, size);
             }
+            let t1 = engine.read().unwrap().perf.get_t1(t0).unwrap();
+            buffer.set_string(0, 0, &format!("{:>03}.{:>03}ms", t1.as_millis(), t1.as_micros() % 1000), Style::default());
             std::thread::sleep(sleep);
         })
     }