webrtc_m130/third_party/ijar/mapped_file.h
Artem Titov 739351d476 Roll chromium_revision 95336cb92b..191d55580e (557816:557824)
Change log: 95336cb92b..191d55580e
Full diff: 95336cb92b..191d55580e

Roll chromium third_party 4e16929f46..3a8f2a9e1e
Change log: 4e16929f46..3a8f2a9e1e

Changed dependencies:
* src/tools: c44a3f5eca..f524a53b81
DEPS diff: 95336cb92b..191d55580e/DEPS

No update to Clang.

TBR=titovartem@google.com,
BUG=None
CQ_INCLUDE_TRYBOTS=master.internal.tryserver.corp.webrtc:linux_internal

Change-Id: Ic9c4a62b050383646e9fcf5cc07a5653c14ac06e
Reviewed-on: https://webrtc-review.googlesource.com/76120
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23205}
2018-05-11 11:17:05 +00:00

83 lines
2.1 KiB
C++

// Copyright 2015 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef INCLUDED_THIRD_PARTY_IJAR_MAPPED_FILE_H
#define INCLUDED_THIRD_PARTY_IJAR_MAPPED_FILE_H
#include "third_party/ijar/common.h"
namespace devtools_ijar {
struct MappedInputFileImpl;
struct MappedOutputFileImpl;
// A memory mapped input file.
class MappedInputFile {
private:
MappedInputFileImpl *impl_;
protected:
const char* errmsg_;
bool opened_;
u1* buffer_;
size_t length_;
public:
MappedInputFile(const char* name);
virtual ~MappedInputFile();
// If opening the file succeeded or not.
bool Opened() const { return opened_; }
// Description of the last error that happened.
const char* Error() const { return errmsg_; }
// The mapped contents of the file.
u1* Buffer() const { return buffer_ ; }
// The length of the file.
size_t Length() const { return length_; }
// Unmap a given number of bytes from the beginning of the file.
void Discard(size_t bytes);
int Close();
};
class MappedOutputFile {
private:
MappedOutputFileImpl *impl_;
protected:
const char* errmsg_;
bool opened_;
u1* buffer_;
public:
MappedOutputFile(const char* name, u8 estimated_size);
virtual ~MappedOutputFile();
// If opening the file succeeded or not.
bool Opened() const { return opened_; }
// Description of the last error that happened.
const char* Error() const { return errmsg_; }
// The mapped contents of the file.
u1* Buffer() const { return buffer_; }
int Close(int size);
};
} // namespace devtools_ijar
#endif