base/process/process_info_mac.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/process/process_info.h"
   6
   7 #include <sys/sysctl.h>
   8 #include <sys/time.h>
   9 #include <unistd.h>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/time/time.h"
  14
  15 namespace base {
  16
  17 // static
  18 const Time CurrentProcessInfo::CreationTime() {
  19   int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid() };
  20   size_t len = 0;
  21   if (sysctl(mib, arraysize(mib), NULL, &len, NULL, 0) < 0)
  22     return Time();
  23
  24   scoped_ptr<struct kinfo_proc, base::FreeDeleter>
  25       proc(static_cast<struct kinfo_proc*>(malloc(len)));
  26   if (sysctl(mib, arraysize(mib), proc.get(), &len, NULL, 0) < 0)
  27     return Time();
  28   return Time::FromTimeVal(proc->kp_proc.p_un.__p_starttime);
  29 }
  30
  31 }  // namespace base