Debugger: Make Gdbmi threads parsing code re-usable.

Adapt watchutils code for new engine.

Acked-by: hjk

src/plugins/debugger/threadshandler.cpp

@@ -28,6 +28,7 @@
 **************************************************************************/
 
 #include "threadshandler.h"
+#include "gdb/gdbmi.h"
 
 #include "debuggerconstants.h"
 
@@ -254,5 +255,37 @@ void ThreadsHandler::notifyRunning()
         index(m_threads.size() - 1, ThreadData::ColumnCount - 1));
 }
 
+Threads ThreadsHandler::parseGdbmiThreads(const GdbMi &data, int *currentThread)
+{
+    // ^done,threads=[{id="1",target-id="Thread 0xb7fdc710 (LWP 4264)",
+    // frame={level="0",addr="0x080530bf",func="testQString",args=[],
+    // file="/.../app.cpp",fullname="/../app.cpp",line="1175"},
+    // state="stopped",core="0"}],current-thread-id="1"
+    const QList<GdbMi> items = data.findChild("threads").children();
+    const int n = items.size();
+    Threads threads;
+    threads.reserve(n);
+    for (int index = 0; index != n; ++index) {
+        bool ok = false;
+        const GdbMi item = items.at(index);
+        const GdbMi frame = item.findChild("frame");
+        ThreadData thread;
+        thread.id = item.findChild("id").data().toInt();
+        thread.targetId = QString::fromAscii(item.findChild("target-id").data());
+        thread.core = QString::fromLatin1(item.findChild("core").data());
+        thread.state = QString::fromLatin1(item.findChild("state").data());
+        thread.address = frame.findChild("addr").data().toULongLong(&ok, 0);
+        thread.function = QString::fromLatin1(frame.findChild("func").data());
+        thread.fileName = QString::fromLatin1(frame.findChild("fullname").data());
+        thread.lineNumber = frame.findChild("line").data().toInt();
+        // Non-GDB (Cdb2) output name here.
+        thread.name = frame.findChild("name").data().toInt();
+        threads.append(thread);
+    }
+    if (currentThread)
+        *currentThread = data.findChild("current-thread-id").data().toInt();
+    return threads;
+}
+
 } // namespace Internal
 } // namespace Debugger