Revert "POSIX: Don't spawn zombies." (r14488)

Something else is trying to reap children in the ui_tests and causing
a mess. Reverting since it's a Friday night.


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@14499 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 79 deletions

diff --git a/chrome/common/process_watcher_posix.cc b/chrome/common/process_watcher_posix.cc
deleted file mode 100644
index ef73521..0000000
--- a/chrome/common/process_watcher_posix.cc
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2009 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 "chrome/common/process_watcher.h"
-
-#include <errno.h>
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-
-#include "base/platform_thread.h"
-
-// Return true if the given child is dead. This will also reap the process.
-// Doesn't block.
-static bool IsChildDead(pid_t child) {
-  const int result = waitpid(child, NULL, WNOHANG);
-  if (result == -1) {
-    NOTREACHED();
-  } else if (result > 0) {
-    // The child has died.
-    return true;
-  }
-
-  return false;
-}
-
-// A thread class which waits for the given child to exit and reaps it.
-// If the child doesn't exit within a couple of seconds, kill it.
-class BackgroundReaper : public PlatformThread::Delegate {
- public:
-  explicit BackgroundReaper(pid_t child)
-      : child_(child) {
-  }
-
-  void ThreadMain() {
-    WaitForChildToDie();
-    delete this;
-  }
-
-  void WaitForChildToDie() {
-    // There's no good way to wait for a specific child to exit in a timed
-    // fashion. (No kqueue on Linux), so we just loop and sleep.
-
-    // Waits 0.5 * 4 = 2 seconds.
-    for (unsigned i = 0; i < 4; ++i) {
-      PlatformThread::Sleep(500);  // 0.5 seconds
-      if (IsChildDead(child_))
-        return;
-    }
-
-    if (kill(child_, SIGKILL) == 0) {
-      // SIGKILL is uncatchable. Since the signal was delivered, we can
-      // just wait for the process to die now in a blocking manner.
-      int result;
-      do {
-        result = waitpid(child_, NULL, 0);
-      } while (result == -1 && errno == EINTR);
-    } else {
-      LOG(ERROR) << "While waiting for " << child_ << " to terminate we"
-                 << " failed to deliver a SIGKILL signal (" << errno << ").";
-    }
-  }
-
- private:
-  const pid_t child_;
-
-  DISALLOW_COPY_AND_ASSIGN(BackgroundReaper);
-};
-
-// static
-void ProcessWatcher::EnsureProcessTerminated(base::ProcessHandle process) {
-  // If the child is already dead, then there's nothing to do
-  if (IsChildDead(process))
-    return;
-
-  BackgroundReaper* reaper = new BackgroundReaper(process);
-  PlatformThread::CreateNonJoinable(0, reaper);
-}