Add re-entry count for QemuTracerAuto class.

2 files changed, 15 insertions, 2 deletions

diff --git a/WebKit/android/TimeCounter.cpp b/WebKit/android/TimeCounter.cpp
index 5f69cf6..7abc113 100644
--- a/WebKit/android/TimeCounter.cpp
+++ b/WebKit/android/TimeCounter.cpp
@@ -65,6 +65,8 @@ uint32_t TimeCounter::sCounter[TimeCounter::TotalTimeCounterCount];
 uint32_t TimeCounter::sLastCounter[TimeCounter::TotalTimeCounterCount];
 uint32_t TimeCounter::sStartTime[TimeCounter::TotalTimeCounterCount];
 
+int QemuTracerAuto::reentry_count = 0;
+
 static const char* timeCounterNames[] = {
     "css parsing", 
     "javascript",
diff --git a/WebKit/android/TimeCounter.h b/WebKit/android/TimeCounter.h
index 47e681b..29c3eb9 100644
--- a/WebKit/android/TimeCounter.h
+++ b/WebKit/android/TimeCounter.h
@@ -98,8 +98,19 @@ private:
 
 class QemuTracerAuto {
 public:
-    QemuTracerAuto() { qemu_start_tracing(); }
-    ~QemuTracerAuto() { qemu_stop_tracing(); }
+    QemuTracerAuto() {
+        if (!reentry_count)
+            qemu_start_tracing();
+        reentry_count++;
+    }
+
+    ~QemuTracerAuto() {
+        reentry_count--;
+        if (!reentry_count)
+            qemu_stop_tracing();
+    }
+private:
+    static int reentry_count;
 };
 
 }