Remove ctrlc dependency

Former-commit-id: b78552cbbdbdce140861406659678af2da4719b0

rustboyadvance-core/Cargo.toml

@@ -19,7 +19,6 @@ time = "0.2.6"
 bitfield = "0.13.1"
 bitflags = "1.2.1"
 zip = {version = "0.5.4", default-features = false, features = ["deflate", "time"]}
-ctrlc = "3.1.3"
 bit-set = "0.5.1"
 debug_stub_derive = "0.3.0"
 bytesize = "1.0.0"

rustboyadvance-core/src/debugger/command.rs

@@ -76,11 +76,7 @@ impl Debugger {
             }
             GpuInfo => println!("GPU: {:#?}", self.gba.sysbus.io.gpu),
             Step(count) => {
-                self.ctrlc_flag.store(true, Ordering::SeqCst);
                 for _ in 0..count {
-                    if !self.ctrlc_flag.load(Ordering::SeqCst) {
-                        break;
-                    }
                     self.gba.cpu.step(&mut self.gba.sysbus);
                     while self.gba.cpu.last_executed.is_none() {
                         self.gba.cpu.step(&mut self.gba.sysbus);
@@ -107,8 +103,7 @@ impl Debugger {
                 println!("{}\n", self.gba.cpu);
             }
             Continue => {
-                self.ctrlc_flag.store(true, Ordering::SeqCst);
-                while self.ctrlc_flag.load(Ordering::SeqCst) {
+                loop {
                     self.gba.key_poll();
                     match self.gba.check_breakpoint() {
                         Some(addr) => {

rustboyadvance-core/src/debugger/mod.rs

@@ -1,9 +1,6 @@
 use std::fs::File;
 use std::io::{prelude::*, BufReader};
-use std::sync::atomic::{AtomicBool, Ordering};
-use std::sync::Arc;
 
-use ctrlc;
 use rustyline::error::ReadlineError;
 use rustyline::Editor;
 
@@ -41,23 +38,14 @@ type DebuggerResult<T> = Result<T, DebuggerError>;
 pub struct Debugger {
     pub gba: GameBoyAdvance,
     running: bool,
-    pub ctrlc_flag: Arc<AtomicBool>,
     pub previous_command: Option<Command>,
 }
 
 impl Debugger {
     pub fn new(gba: GameBoyAdvance) -> Debugger {
-        let ctrlc_flag = Arc::new(AtomicBool::new(true));
-        let r = ctrlc_flag.clone();
-        ctrlc::set_handler(move || {
-            println!("Stopping, Ctrl-C detected!");
-            r.store(false, Ordering::SeqCst);
-        })
-        .expect("Error setting Ctrl-C handler");
         Debugger {
             gba: gba,
             running: false,
-            ctrlc_flag: ctrlc_flag,
             previous_command: None,
         }
     }