- Write the coverage data to a file instead of printing to stdout.

runtime/vm/os_macos.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.
 
 #include "vm/globals.h"
 #if defined(TARGET_OS_MACOS)
 
 #include "vm/os.h"
 
 #include <errno.h>  // NOLINT
 #include <limits.h>  // NOLINT
 #include <mach/mach.h>  // NOLINT
 #include <mach/clock.h>  // NOLINT
 #include <mach/mach_time.h>  // NOLINT
 #include <sys/time.h>  // NOLINT
 #include <sys/resource.h>  // NOLINT
 #include <unistd.h>  // NOLINT
 
 #include "platform/utils.h"
 #include "vm/isolate.h"
 
 namespace dart {
 
 const char* OS::Name() {
   return "macos";
 }
 
 
+intptr_t OS::ProcessId() {
+  return static_cast<intptr_t>(getpid());
+}
+
+
 static bool LocalTime(int64_t seconds_since_epoch, tm* tm_result) {
   time_t seconds = static_cast<time_t>(seconds_since_epoch);
   if (seconds != seconds_since_epoch) return false;
   struct tm* error_code = localtime_r(&seconds, tm_result);
   return error_code != NULL;
 }
 
 
 const char* OS::GetTimeZoneName(int64_t seconds_since_epoch) {
   tm decomposed;
@@ skipping 207 matching lines @@
 }
 
 
 void OS::Exit(int code) {
   exit(code);
 }
 
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_MACOS)