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      1 // Copyright (c) 2013 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/kill.h"
      6 
      7 #include "base/bind.h"
      8 #include "base/process/process_iterator.h"
      9 #include "base/task_scheduler/post_task.h"
     10 #include "base/time/time.h"
     11 
     12 namespace base {
     13 
     14 bool KillProcesses(const FilePath::StringType& executable_name,
     15                    int exit_code,
     16                    const ProcessFilter* filter) {
     17   bool result = true;
     18   NamedProcessIterator iter(executable_name, filter);
     19   while (const ProcessEntry* entry = iter.NextProcessEntry()) {
     20     Process process = Process::Open(entry->pid());
     21     // Sometimes process open fails. This would cause a DCHECK in
     22     // process.Terminate(). Maybe the process has killed itself between the
     23     // time the process list was enumerated and the time we try to open the
     24     // process?
     25     if (!process.IsValid()) {
     26       result = false;
     27       continue;
     28     }
     29     result &= process.Terminate(exit_code, true);
     30   }
     31   return result;
     32 }
     33 
     34 #if defined(OS_WIN) || defined(OS_FUCHSIA)
     35 // Common implementation for platforms under which |process| is a handle to
     36 // the process, rather than an identifier that must be "reaped".
     37 void EnsureProcessTerminated(Process process) {
     38   DCHECK(!process.is_current());
     39 
     40   if (process.WaitForExitWithTimeout(TimeDelta(), nullptr))
     41     return;
     42 
     43   PostDelayedTaskWithTraits(
     44       FROM_HERE,
     45       {TaskPriority::BACKGROUND, TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN},
     46       BindOnce(
     47           [](Process process) {
     48             if (process.WaitForExitWithTimeout(TimeDelta(), nullptr))
     49               return;
     50 #if defined(OS_WIN)
     51             process.Terminate(win::kProcessKilledExitCode, false);
     52 #else
     53             process.Terminate(-1, false);
     54 #endif
     55           },
     56           std::move(process)),
     57       TimeDelta::FromSeconds(2));
     58 }
     59 #endif  // defined(OS_WIN) || defined(OS_FUCHSIA)
     60 
     61 }  // namespace base
     62