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Diffstat (limited to 'base/process/kill_win.cc')
-rw-r--r-- | base/process/kill_win.cc | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/base/process/kill_win.cc b/base/process/kill_win.cc deleted file mode 100644 index 0da3a26ae4..0000000000 --- a/base/process/kill_win.cc +++ /dev/null @@ -1,198 +0,0 @@ -// Copyright (c) 2013 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "base/process/kill.h" - -#include <io.h> -#include <windows.h> - -#include "base/bind.h" -#include "base/bind_helpers.h" -#include "base/logging.h" -#include "base/message_loop/message_loop.h" -#include "base/process/process_iterator.h" -#include "base/win/object_watcher.h" - -namespace base { - -namespace { - -// Exit codes with special meanings on Windows. -const DWORD kNormalTerminationExitCode = 0; -const DWORD kDebuggerInactiveExitCode = 0xC0000354; -const DWORD kKeyboardInterruptExitCode = 0xC000013A; -const DWORD kDebuggerTerminatedExitCode = 0x40010004; - -// This exit code is used by the Windows task manager when it kills a -// process. It's value is obviously not that unique, and it's -// surprising to me that the task manager uses this value, but it -// seems to be common practice on Windows to test for it as an -// indication that the task manager has killed something if the -// process goes away. -const DWORD kProcessKilledExitCode = 1; - -// Maximum amount of time (in milliseconds) to wait for the process to exit. -static const int kWaitInterval = 2000; - -class TimerExpiredTask : public win::ObjectWatcher::Delegate { - public: - explicit TimerExpiredTask(Process process); - ~TimerExpiredTask() override; - - void TimedOut(); - - // MessageLoop::Watcher ----------------------------------------------------- - void OnObjectSignaled(HANDLE object) override; - - private: - void KillProcess(); - - // The process that we are watching. - Process process_; - - win::ObjectWatcher watcher_; - - DISALLOW_COPY_AND_ASSIGN(TimerExpiredTask); -}; - -TimerExpiredTask::TimerExpiredTask(Process process) : process_(process.Pass()) { - watcher_.StartWatching(process_.Handle(), this); -} - -TimerExpiredTask::~TimerExpiredTask() { - TimedOut(); -} - -void TimerExpiredTask::TimedOut() { - if (process_.IsValid()) - KillProcess(); -} - -void TimerExpiredTask::OnObjectSignaled(HANDLE object) { - process_.Close(); -} - -void TimerExpiredTask::KillProcess() { - // Stop watching the process handle since we're killing it. - watcher_.StopWatching(); - - // OK, time to get frisky. We don't actually care when the process - // terminates. We just care that it eventually terminates, and that's what - // TerminateProcess should do for us. Don't check for the result code since - // it fails quite often. This should be investigated eventually. - process_.Terminate(kProcessKilledExitCode, false); - - // Now, just cleanup as if the process exited normally. - OnObjectSignaled(process_.Handle()); -} - -} // namespace - -TerminationStatus GetTerminationStatus(ProcessHandle handle, int* exit_code) { - DWORD tmp_exit_code = 0; - - if (!::GetExitCodeProcess(handle, &tmp_exit_code)) { - DPLOG(FATAL) << "GetExitCodeProcess() failed"; - if (exit_code) { - // This really is a random number. We haven't received any - // information about the exit code, presumably because this - // process doesn't have permission to get the exit code, or - // because of some other cause for GetExitCodeProcess to fail - // (MSDN docs don't give the possible failure error codes for - // this function, so it could be anything). But we don't want - // to leave exit_code uninitialized, since that could cause - // random interpretations of the exit code. So we assume it - // terminated "normally" in this case. - *exit_code = kNormalTerminationExitCode; - } - // Assume the child has exited normally if we can't get the exit - // code. - return TERMINATION_STATUS_NORMAL_TERMINATION; - } - if (tmp_exit_code == STILL_ACTIVE) { - DWORD wait_result = WaitForSingleObject(handle, 0); - if (wait_result == WAIT_TIMEOUT) { - if (exit_code) - *exit_code = wait_result; - return TERMINATION_STATUS_STILL_RUNNING; - } - - if (wait_result == WAIT_FAILED) { - DPLOG(ERROR) << "WaitForSingleObject() failed"; - } else { - DCHECK_EQ(WAIT_OBJECT_0, wait_result); - - // Strange, the process used 0x103 (STILL_ACTIVE) as exit code. - NOTREACHED(); - } - - return TERMINATION_STATUS_ABNORMAL_TERMINATION; - } - - if (exit_code) - *exit_code = tmp_exit_code; - - switch (tmp_exit_code) { - case kNormalTerminationExitCode: - return TERMINATION_STATUS_NORMAL_TERMINATION; - case kDebuggerInactiveExitCode: // STATUS_DEBUGGER_INACTIVE. - case kKeyboardInterruptExitCode: // Control-C/end session. - case kDebuggerTerminatedExitCode: // Debugger terminated process. - case kProcessKilledExitCode: // Task manager kill. - return TERMINATION_STATUS_PROCESS_WAS_KILLED; - default: - // All other exit codes indicate crashes. - return TERMINATION_STATUS_PROCESS_CRASHED; - } -} - -bool WaitForProcessesToExit(const FilePath::StringType& executable_name, - TimeDelta wait, - const ProcessFilter* filter) { - bool result = true; - DWORD start_time = GetTickCount(); - - NamedProcessIterator iter(executable_name, filter); - for (const ProcessEntry* entry = iter.NextProcessEntry(); entry; - entry = iter.NextProcessEntry()) { - DWORD remaining_wait = static_cast<DWORD>(std::max( - static_cast<int64>(0), - wait.InMilliseconds() - (GetTickCount() - start_time))); - HANDLE process = OpenProcess(SYNCHRONIZE, - FALSE, - entry->th32ProcessID); - DWORD wait_result = WaitForSingleObject(process, remaining_wait); - CloseHandle(process); - result &= (wait_result == WAIT_OBJECT_0); - } - - return result; -} - -bool CleanupProcesses(const FilePath::StringType& executable_name, - TimeDelta wait, - int exit_code, - const ProcessFilter* filter) { - if (WaitForProcessesToExit(executable_name, wait, filter)) - return true; - KillProcesses(executable_name, exit_code, filter); - return false; -} - -void EnsureProcessTerminated(Process process) { - DCHECK(!process.is_current()); - - // If already signaled, then we are done! - if (WaitForSingleObject(process.Handle(), 0) == WAIT_OBJECT_0) { - return; - } - - MessageLoop::current()->PostDelayedTask( - FROM_HERE, - Bind(&TimerExpiredTask::TimedOut, - Owned(new TimerExpiredTask(process.Pass()))), - TimeDelta::FromMilliseconds(kWaitInterval)); -} - -} // namespace base |