[darwin-framework-tool] Add a shortcut (CTL('_')) to stop the stack while in interactive mode (#22362)

Author: vivien-apple

examples/darwin-framework-tool/commands/common/CHIPCommandBridge.h

@@ -95,6 +95,8 @@ class CHIPCommandBridge : public Command
 
     static std::set<CHIPCommandBridge *> sDeferredCleanups;
 
+    void StopCommissioners();
+
     void RestartCommissioners();
 
 private:

examples/darwin-framework-tool/commands/common/CHIPCommandBridge.mm

@@ -136,11 +136,16 @@
 
 MTRDeviceController * CHIPCommandBridge::GetCommissioner(const char * identity) { return mControllers[identity]; }
 
-void CHIPCommandBridge::RestartCommissioners()
+void CHIPCommandBridge::StopCommissioners()
 {
     for (auto & pair : mControllers) {
         [pair.second shutdown];
     }
+}
+
+void CHIPCommandBridge::RestartCommissioners()
+{
+    StopCommissioners();
 
     auto factory = [MTRControllerFactory sharedInstance];
     NSData * ipk = [gNocSigner getIPK];
@@ -159,9 +164,7 @@
 void CHIPCommandBridge::ShutdownCommissioner()
 {
     ChipLogProgress(chipTool, "Shutting down controller");
-    for (auto & pair : mControllers) {
-        [pair.second shutdown];
-    }
+    StopCommissioners();
     mControllers.clear();
     mCurrentController = nil;
 

examples/darwin-framework-tool/commands/interactive/InteractiveCommands.mm

@@ -47,6 +47,22 @@ CHIP_ERROR RunCommand() override
     chip::System::Clock::Timeout GetWaitDuration() const override { return chip::System::Clock::Seconds16(0); }
 };
 
+class StopCommand : public CHIPCommandBridge {
+public:
+    StopCommand()
+        : CHIPCommandBridge("stop")
+    {
+    }
+
+    CHIP_ERROR RunCommand() override
+    {
+        StopCommissioners();
+        return CHIP_NO_ERROR;
+    }
+
+    chip::System::Clock::Timeout GetWaitDuration() const override { return chip::System::Clock::Seconds16(0); }
+};
+
 void ClearLine()
 {
     printf("\r\x1B[0J"); // Move cursor to the beginning of the line and clear from cursor to end of the screen
@@ -85,6 +101,13 @@ el_status_t RestartFunction()
     return CSstay;
 }
 
+el_status_t StopFunction()
+{
+    StopCommand cmd;
+    cmd.RunCommand();
+    return CSstay;
+}
+
 CHIP_ERROR InteractiveStartCommand::RunCommand()
 {
     read_history(kInteractiveModeHistoryFilePath);
@@ -94,6 +117,7 @@ el_status_t RestartFunction()
     chip::Logging::SetLogRedirectCallback(LoggingCallback);
 
     el_bind_key(CTL('^'), RestartFunction);
+    el_bind_key(CTL('_'), StopFunction);
 
     char * command = nullptr;
     while (YES) {