The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/ipc/chromium/src/chrome/common/transport_dib_mac.cc	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,65 @@
     1.4 +// Copyright (c) 2009 The Chromium Authors. All rights reserved.
     1.5 +// Use of this source code is governed by a BSD-style license that can be
     1.6 +// found in the LICENSE file.
     1.7 +
     1.8 +#include "chrome/common/transport_dib.h"
     1.9 +
    1.10 +#include <unistd.h>
    1.11 +#include <sys/stat.h>
    1.12 +
    1.13 +#include "base/eintr_wrapper.h"
    1.14 +#include "base/shared_memory.h"
    1.15 +
    1.16 +TransportDIB::TransportDIB()
    1.17 +    : size_(0) {
    1.18 +}
    1.19 +
    1.20 +TransportDIB::TransportDIB(TransportDIB::Handle dib)
    1.21 +    : shared_memory_(dib, false /* read write */),
    1.22 +      size_(0) {
    1.23 +}
    1.24 +
    1.25 +TransportDIB::~TransportDIB() {
    1.26 +}
    1.27 +
    1.28 +// static
    1.29 +TransportDIB* TransportDIB::Create(size_t size, uint32_t sequence_num) {
    1.30 +  TransportDIB* dib = new TransportDIB;
    1.31 +  if (!dib->shared_memory_.Create("", false /* read write */,
    1.32 +                                  false /* do not open existing */, size)) {
    1.33 +    delete dib;
    1.34 +    return NULL;
    1.35 +  }
    1.36 +
    1.37 +  dib->size_ = size;
    1.38 +  return dib;
    1.39 +}
    1.40 +
    1.41 +// static
    1.42 +TransportDIB* TransportDIB::Map(TransportDIB::Handle handle) {
    1.43 +  TransportDIB* dib = new TransportDIB(handle);
    1.44 +  struct stat st;
    1.45 +  fstat(handle.fd, &st);
    1.46 +
    1.47 +  if (!dib->shared_memory_.Map(st.st_size)) {
    1.48 +    delete dib;
    1.49 +    HANDLE_EINTR(close(handle.fd));
    1.50 +    return nullptr;
    1.51 +  }
    1.52 +
    1.53 +  dib->size_ = st.st_size;
    1.54 +
    1.55 +  return dib;
    1.56 +}
    1.57 +
    1.58 +void* TransportDIB::memory() const {
    1.59 +  return shared_memory_.memory();
    1.60 +}
    1.61 +
    1.62 +TransportDIB::Id TransportDIB::id() const {
    1.63 +  return shared_memory_.id();
    1.64 +}
    1.65 +
    1.66 +TransportDIB::Handle TransportDIB::handle() const {
    1.67 +  return shared_memory_.handle();
    1.68 +}