dkegel@google.com
9c85299ea2
Limitations that need addressing still:
- Doesn't forcibly terminate children that should have exited but haven't
Enable with env var ENABLE_ZYGOTE_MANAGER=1.
BUG=11841
TEST=
start the browser, then make chrome and all .pak files unreadable; or alternately, start an installed browser, and uninstall the browser while it's running. Then create a new tab and browse to two new sites.
Here's an example script to hide and unhide the .pak files (note: do not move the directory they're in, that doesn't work):
#!/bin/sh
chmod_all() {
chmod $1 sconsbuild/Debug/chrome
for path in . locales obj/chrome/app/intermediate/repack obj/global_intermediate/* themes
do
chmod $1 sconsbuild/Debug/$path/*.pak
done
}
case $1 in
hide) chmod_all 000 ;;
show) chmod_all 755 ;;
esac
Review URL: http://codereview.chromium.org/115773
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17840 0039d316-1c4b-4281-b951-d872f2087c98
83 linhas
2.0 KiB
C++
83 linhas
2.0 KiB
C++
// Copyright (c) 2009 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/file_descriptor_shuffle.h"
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#include <errno.h>
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#include <unistd.h>
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#include "base/eintr_wrapper.h"
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#include "base/logging.h"
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namespace base {
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bool PerformInjectiveMultimap(const InjectiveMultimap& m_in,
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InjectionDelegate* delegate) {
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InjectiveMultimap m(m_in);
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std::vector<int> extra_fds;
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for (InjectiveMultimap::iterator i = m.begin(); i != m.end(); ++i) {
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int temp_fd = -1;
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// We DCHECK the injectiveness of the mapping.
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for (InjectiveMultimap::iterator j = i + 1; j != m.end(); ++j) {
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DCHECK(i->dest != j->dest) << "Both fd " << i->source
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<< " and " << j->source << " map to " << i->dest;
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}
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const bool is_identity = i->source == i->dest;
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for (InjectiveMultimap::iterator j = i + 1; j != m.end(); ++j) {
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if (!is_identity && i->dest == j->source) {
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if (temp_fd == -1) {
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if (!delegate->Duplicate(&temp_fd, i->dest))
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return false;
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extra_fds.push_back(temp_fd);
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}
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j->source = temp_fd;
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j->close = false;
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}
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if (i->close && i->source == j->dest)
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i->close = false;
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if (i->close && i->source == j->source) {
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i->close = false;
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j->close = true;
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}
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}
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if (!is_identity) {
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if (!delegate->Move(i->source, i->dest))
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return false;
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}
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if (!is_identity && i->close)
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delegate->Close(i->source);
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}
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for (std::vector<int>::const_iterator
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i = extra_fds.begin(); i != extra_fds.end(); ++i) {
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delegate->Close(*i);
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}
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return true;
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}
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bool FileDescriptorTableInjection::Duplicate(int* result, int fd) {
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*result = HANDLE_EINTR(dup(fd));
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return *result >= 0;
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}
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bool FileDescriptorTableInjection::Move(int src, int dest) {
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return HANDLE_EINTR(dup2(src, dest)) != -1;
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}
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void FileDescriptorTableInjection::Close(int fd) {
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HANDLE_EINTR(close(fd));
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}
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} // namespace base
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