base/process_util_ios.mm

   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_util.h"
   6
   7 #import <Foundation/Foundation.h>
   8 #include <mach/task.h>
   9 #include <stdio.h>
  10
  11 #include "base/logging.h"
  12
  13 // This is just enough of a shim to let the support needed by test_support
  14 // link.  In general, process_util isn't valid on iOS.
  15
  16 namespace base {
  17
  18 namespace {
  19
  20 bool GetTaskInfo(task_basic_info_64* task_info_data) {
  21   mach_msg_type_number_t count = TASK_BASIC_INFO_64_COUNT;
  22   kern_return_t kr = task_info(mach_task_self(),
  23                                TASK_BASIC_INFO_64,
  24                                reinterpret_cast<task_info_t>(task_info_data),
  25                                &count);
  26   return kr == KERN_SUCCESS;
  27 }
  28
  29 }  // namespace
  30
  31 ProcessId GetCurrentProcId() {
  32   return getpid();
  33 }
  34
  35 ProcessHandle GetCurrentProcessHandle() {
  36   return GetCurrentProcId();
  37 }
  38
  39 void EnableTerminationOnHeapCorruption() {
  40   // On iOS, there nothing to do AFAIK.
  41 }
  42
  43 void EnableTerminationOnOutOfMemory() {
  44   // iOS provides this for free!
  45 }
  46
  47 void RaiseProcessToHighPriority() {
  48   // Impossible on iOS. Do nothing.
  49 }
  50
  51 ProcessMetrics::ProcessMetrics(ProcessHandle process) {}
  52
  53 ProcessMetrics::~ProcessMetrics() {}
  54
  55 // static
  56 ProcessMetrics* ProcessMetrics::CreateProcessMetrics(ProcessHandle process) {
  57   return new ProcessMetrics(process);
  58 }
  59
  60 size_t ProcessMetrics::GetWorkingSetSize() const {
  61   task_basic_info_64 task_info_data;
  62   if (!GetTaskInfo(&task_info_data))
  63     return 0;
  64   return task_info_data.resident_size;
  65 }
  66
  67 }  // namespace base