[dart:io] Adds ProcessInfo.{max,current}Rss. Adds OS::MaxRSS on Fuchsia.

runtime/bin/process_win.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #if !defined(DART_IO_DISABLED)
 
 #include "platform/globals.h"
 #if defined(HOST_OS_WINDOWS)
 
 #include "bin/process.h"
@@ skipping 923 matching lines @@
 void Process::TerminateExitCodeHandler() {
   // Nothing needs to be done on Windows.
 }
 
 
 intptr_t Process::CurrentProcessId() {
   return static_cast<intptr_t>(GetCurrentProcessId());
 }
 
 
+intptr_t Process::CurrentRss() {
+  PROCESS_MEMORY_COUNTERS pmc;
+  if (!GetProcessMemoryInfo(GetCurrentProcess(), &info, sizeof(pmc))) {
+    return -1;
+  }
+  return pmc.WorkingSetSize;
+}
+
+
+intptr_t Process::MaxRSS() {
+  PROCESS_MEMORY_COUNTERS pmc;
+  if (!GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc))) {
+    return -1;
+  }
+  return pmc.PeakWorkingSetSize;
+}
+
+
 static SignalInfo* signal_handlers = NULL;
 static Mutex* signal_mutex = new Mutex();
 
 
 SignalInfo::~SignalInfo() {
   FileHandle* file_handle = reinterpret_cast<FileHandle*>(fd_);
   file_handle->Close();
   file_handle->Release();
 }
 
@@ skipping 97 matching lines @@
   }
   delete handler;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(HOST_OS_WINDOWS)
 
 #endif  // !defined(DART_IO_DISABLED)