Debugger: Replace unneeded requests for updates in PdbEngine

... by more direct flushing on the dumper side.

Change-Id: I53d91e564bb948e3c934242fec4f23f36ee8c10e
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>

share/qtcreator/debugger/pdbbridge.py

@@ -731,7 +731,7 @@ class Dumper:
     def sigint_handler(self, signum, frame):
         if self.allow_kbdint:
             raise KeyboardInterrupt
-        self.message("\nProgram interrupted. (Use 'cont' to resume).")
+        self.report('state="stopped"')
         self.set_step()
         self.set_trace(frame)
         # restore previous signal handler
@@ -1484,7 +1484,8 @@ class Dumper:
         self.flushOutput()
 
     def flushOutput(self):
-        sys.stdout.write(self.output)
+        sys.stdout.write("@\n" + self.output + "@\n")
+        sys.stdout.flush()
         self.output = ""
 
     def put(self, value):

src/plugins/debugger/pdb/pdbengine.cpp

@@ -179,7 +179,6 @@ void PdbEngine::interruptInferior()
 {
     QString error;
     interruptProcess(m_proc.processId(), GdbEngineType, &error);
-    notifyInferiorStopOk();
 }
 
 void PdbEngine::executeStep()
@@ -188,7 +187,6 @@ void PdbEngine::executeStep()
     notifyInferiorRunRequested();
     notifyInferiorRunOk();
     postDirectCommand("step");
-    updateAll();
 }
 
 void PdbEngine::executeStepI()
@@ -197,7 +195,6 @@ void PdbEngine::executeStepI()
     notifyInferiorRunRequested();
     notifyInferiorRunOk();
     postDirectCommand("step");
-    updateAll();
 }
 
 void PdbEngine::executeStepOut()
@@ -206,7 +203,6 @@ void PdbEngine::executeStepOut()
     notifyInferiorRunRequested();
     notifyInferiorRunOk();
     postDirectCommand("return");
-    updateAll();
 }
 
 void PdbEngine::executeNext()
@@ -215,7 +211,6 @@ void PdbEngine::executeNext()
     notifyInferiorRunRequested();
     notifyInferiorRunOk();
     postDirectCommand("next");
-    updateAll();
 }
 
 void PdbEngine::executeNextI()
@@ -224,7 +219,6 @@ void PdbEngine::executeNextI()
     notifyInferiorRunRequested();
     notifyInferiorRunOk();
     postDirectCommand("next");
-    updateAll();
 }
 
 void PdbEngine::continueInferior()
@@ -234,7 +228,6 @@ void PdbEngine::continueInferior()
     notifyInferiorRunOk();
     // Callback will be triggered e.g. when breakpoint is hit.
     postDirectCommand("continue");
-    updateAll();
 }
 
 void PdbEngine::executeRunToLine(const ContextData &data)
@@ -348,6 +341,17 @@ void PdbEngine::requestModuleSymbols(const QString &moduleName)
     runCommand(cmd);
 }
 
+void PdbEngine::refreshState(const GdbMi &reportedState)
+{
+    QByteArray newState = reportedState.data();
+    if (newState == "stopped") {
+        notifyInferiorSpontaneousStop();
+        updateAll();
+    } else if (newState == "inferiorexited") {
+        notifyInferiorExited();
+    }
+}
+
 void PdbEngine::refreshLocation(const GdbMi &reportedLocation)
 {
     StackFrame frame;
@@ -476,13 +480,12 @@ void PdbEngine::handleOutput(const QByteArray &data)
 
 void PdbEngine::handleOutput2(const QByteArray &data)
 {
-    QByteArray lineContext;
     foreach (QByteArray line, data.split('\n')) {
 
         GdbMi item;
         item.fromString(line);
 
-        showMessage(_("LINE: " + line));
+        showMessage(_(line), LogOutput);
 
         if (line.startsWith("stack={")) {
             refreshStack(item);
@@ -494,6 +497,8 @@ void PdbEngine::handleOutput2(const QByteArray &data)
             refreshSymbols(item);
         } else if (line.startsWith("location={")) {
             refreshLocation(item);
+        } else if (line.startsWith("state=")) {
+            refreshState(item);
         } else if (line.startsWith("Breakpoint")) {
             int pos1 = line.indexOf(" at ");
             QTC_ASSERT(pos1 != -1, continue);

src/plugins/debugger/pdb/pdbengine.h

@@ -105,6 +105,7 @@ private:
     void refreshStack(const GdbMi &stack);
     void refreshLocals(const GdbMi &vars);
     void refreshModules(const GdbMi &modules);
+    void refreshState(const GdbMi &reportedState);
     void refreshSymbols(const GdbMi &symbols);
 
     QString errorMessage(QProcess::ProcessError error) const;