chrome/test/base/chrome_process_util.cc

   1 // Copyright (c) 2011 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 "chrome/test/base/chrome_process_util.h"
   6
   7 #include <set>
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/command_line.h"
  12 #include "base/process/kill.h"
  13 #include "base/process/process_iterator.h"
  14 #include "base/time/time.h"
  15 #include "chrome/common/chrome_constants.h"
  16 #include "chrome/test/base/test_switches.h"
  17 #include "content/public/common/result_codes.h"
  18
  19 using base::TimeDelta;
  20 using base::TimeTicks;
  21
  22 namespace {
  23
  24 // Returns the executable name of the current Chrome helper process.
  25 std::vector<base::FilePath::StringType> GetRunningHelperExecutableNames() {
  26   base::FilePath::StringType name = chrome::kHelperProcessExecutableName;
  27
  28   std::vector<base::FilePath::StringType> names;
  29   names.push_back(name);
  30
  31 #if defined(OS_MACOSX)
  32   // The helper might show up as these different flavors depending on the
  33   // executable flags required.
  34   for (const char* const* suffix = chrome::kHelperFlavorSuffixes;
  35        *suffix;
  36        ++suffix) {
  37     std::string flavor_name(name);
  38     flavor_name.append(1, ' ');
  39     flavor_name.append(*suffix);
  40     names.push_back(flavor_name);
  41   }
  42 #endif
  43
  44   return names;
  45 }
  46
  47 }  // namespace
  48
  49 void TerminateAllChromeProcesses(const ChromeProcessList& process_pids) {
  50   ChromeProcessList::const_iterator it;
  51   for (it = process_pids.begin(); it != process_pids.end(); ++it) {
  52     base::ProcessHandle handle;
  53     if (!base::OpenProcessHandle(*it, &handle)) {
  54       // Ignore processes for which we can't open the handle. We don't
  55       // guarantee that all processes will terminate, only try to do so.
  56       continue;
  57     }
  58
  59     base::KillProcess(handle, content::RESULT_CODE_KILLED, true);
  60     base::CloseProcessHandle(handle);
  61   }
  62 }
  63
  64 class ChildProcessFilter : public base::ProcessFilter {
  65  public:
  66   explicit ChildProcessFilter(base::ProcessId parent_pid)
  67       : parent_pids_(&parent_pid, (&parent_pid) + 1) {}
  68
  69   explicit ChildProcessFilter(const std::vector<base::ProcessId>& parent_pids)
  70       : parent_pids_(parent_pids.begin(), parent_pids.end()) {}
  71
  72   bool Includes(const base::ProcessEntry& entry) const override {
  73     return parent_pids_.find(entry.parent_pid()) != parent_pids_.end();
  74   }
  75
  76  private:
  77   const std::set<base::ProcessId> parent_pids_;
  78
  79   DISALLOW_COPY_AND_ASSIGN(ChildProcessFilter);
  80 };
  81
  82 ChromeProcessList GetRunningChromeProcesses(base::ProcessId browser_pid) {
  83   const base::FilePath::CharType* executable_name =
  84       chrome::kBrowserProcessExecutableName;
  85   ChromeProcessList result;
  86   if (browser_pid == static_cast<base::ProcessId>(-1))
  87     return result;
  88
  89   ChildProcessFilter filter(browser_pid);
  90   base::NamedProcessIterator it(executable_name, &filter);
  91   while (const base::ProcessEntry* process_entry = it.NextProcessEntry()) {
  92     result.push_back(process_entry->pid());
  93   }
  94
  95 #if defined(OS_POSIX) && !defined(OS_MACOSX)
  96   // On Unix we might be running with a zygote process for the renderers.
  97   // Because of that we sweep the list of processes again and pick those which
  98   // are children of one of the processes that we've already seen.
  99   {
 100     ChildProcessFilter filter(result);
 101     base::NamedProcessIterator it(executable_name, &filter);
 102     while (const base::ProcessEntry* process_entry = it.NextProcessEntry())
 103       result.push_back(process_entry->pid());
 104   }
 105 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
 106
 107 #if defined(OS_POSIX)
 108   // On Mac OS X we run the subprocesses with a different bundle, and
 109   // on Linux via /proc/self/exe, so they end up with a different
 110   // name.  We must collect them in a second pass.
 111   {
 112     std::vector<base::FilePath::StringType> names =
 113         GetRunningHelperExecutableNames();
 114     for (size_t i = 0; i < names.size(); ++i) {
 115       base::FilePath::StringType name = names[i];
 116       ChildProcessFilter filter(browser_pid);
 117       base::NamedProcessIterator it(name, &filter);
 118       while (const base::ProcessEntry* process_entry = it.NextProcessEntry())
 119         result.push_back(process_entry->pid());
 120     }
 121   }
 122 #endif  // defined(OS_POSIX)
 123
 124   result.push_back(browser_pid);
 125
 126   return result;
 127 }
 128
 129 #if !defined(OS_MACOSX)
 130
 131 size_t ChromeTestProcessMetrics::GetPagefileUsage() {
 132   return process_metrics_->GetPagefileUsage();
 133 }
 134
 135 size_t ChromeTestProcessMetrics::GetWorkingSetSize() {
 136   return process_metrics_->GetWorkingSetSize();
 137 }
 138
 139 #endif  // !defined(OS_MACOSX)
 140
 141 ChromeTestProcessMetrics::~ChromeTestProcessMetrics() {}
 142
 143 ChromeTestProcessMetrics::ChromeTestProcessMetrics(
 144     base::ProcessHandle process) {
 145 #if !defined(OS_MACOSX)
 146   process_metrics_.reset(
 147       base::ProcessMetrics::CreateProcessMetrics(process));
 148 #else
 149   process_metrics_.reset(
 150       base::ProcessMetrics::CreateProcessMetrics(process, NULL));
 151 #endif
 152   process_handle_ = process;
 153 }