Sampling profiler

runtime/platform/thread_win.cc

Index: runtime/platform/thread_win.cc
diff --git a/runtime/platform/thread_win.cc b/runtime/platform/thread_win.cc
index e8be678cb6d0a1563aa38995f136ea9821cd4c91..72f22d7a407d9403bcaa1d0cc34b306c711f9ec4 100644
--- a/runtime/platform/thread_win.cc
+++ b/runtime/platform/thread_win.cc
@@ -92,6 +92,17 @@ intptr_t Thread::GetMaxStackSize() {
 }
 
 
+ThreadId Thread::GetCurrentThreadId() {
+  return GetCurrentThread();
+}
+
+
+void Thread::GetThreadCPUUsage(int64_t* cpu_usage) {
+  ASSERT(cpu_usage != NULL);
+  *cpu_usage = 0;

[siva, 2013/10/28 05:19:21]

UNIMPLEMENTED();

[Cutch, 2013/11/04 20:36:05]

Done, but will be implemented soon.

+}
+
+
 void Thread::SetThreadLocal(ThreadLocalKey key, uword value) {
   ASSERT(key != kUnsetThreadLocalKey);
   BOOL result = TlsSetValue(key, reinterpret_cast<void*>(value));
@@ -338,6 +349,19 @@ Monitor::WaitResult Monitor::Wait(int64_t millis) {
 }
 
 
+Monitor::WaitResult Monitor::WaitMicros(int64_t micros) {
+  // TODO(johnmccutchan): Investigate sub-millisecond sleep times on Windows.
+  int64_t millis = micros / kMicrosecondsPerMillisecond;
+  if ((millis * kMicrosecondsPerMillisecond) < micros) {
+    // We've been asked to sleep for a fraction of a millisecond,
+    // this isn't supported on Windows. Bumps milliseconds up by one
+    // so that we never return too early. We likely return late though.
+    millis += 1;
+  }
+  return Wait(millis);
+}
+
+
 void Monitor::Notify() {
   data_.SignalAndRemoveFirstWaiter();
 }