chromium/sandbox/linux/services/scoped_process.cc

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "sandbox/linux/services/scoped_process.h"

#include <fcntl.h>
#include <signal.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>

#include <ostream>

#include "base/check_op.h"
#include "base/functional/callback.h"
#include "base/notreached.h"
#include "base/posix/eintr_wrapper.h"
#include "build/build_config.h"
#include "sandbox/linux/services/syscall_wrappers.h"
#include "sandbox/linux/services/thread_helpers.h"

namespace sandbox {

namespace {

const char kSynchronisationChar[] = …;

void WaitForever() { … }

}  // namespace

ScopedProcess::ScopedProcess(base::OnceClosure child_callback)
    : … { … }

ScopedProcess::~ScopedProcess() { … }

int ScopedProcess::WaitForExit(bool* got_signaled) { … }

bool ScopedProcess::WaitForClosureToRun() { … }

// It would be problematic if after a fork(), another process would start using
// this object.
// This method allows to assert it is not happening.
bool ScopedProcess::IsOriginalProcess() { … }

}  // namespace sandbox