crashpad/util/file/file_reader.cc
Peter Boström 1aa478d161 Remove DISALLOW_* macros in crashpad
This change was partially scripted and partially done manually with vim
regex + manually placing the deleted constructors.

The script change looked for destructors in the public: section of a
class, if that existed the deleted constructors would go before the
destructor.

For manual placement I looked for any constructor in the public: section
of the corresponding class. If there wasn't one, then it would ideally
have gone as the first entry except below enums, classes and typedefs.
This may not have been perfect, but is hopefully good enough. Fingers
crossed.

#include "base/macros.h" is removed from files that don't use
ignore_result, which is the only other thing defined in base/macros.h.

Bug: chromium:1010217
Change-Id: I099526255a40b1ac1264904b4ece2f3f503c9418
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3171034
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Boström <pbos@chromium.org>
2021-09-21 15:09:44 +00:00

114 lines
3.1 KiB
C++

// Copyright 2015 The Crashpad 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.
#include "util/file/file_reader.h"
#include "base/logging.h"
#include "base/numerics/safe_conversions.h"
#include "build/build_config.h"
namespace crashpad {
namespace {
class FileReaderReadExactly final : public internal::ReadExactlyInternal {
public:
explicit FileReaderReadExactly(FileReaderInterface* file_reader)
: ReadExactlyInternal(), file_reader_(file_reader) {}
FileReaderReadExactly(const FileReaderReadExactly&) = delete;
FileReaderReadExactly& operator=(const FileReaderReadExactly&) = delete;
~FileReaderReadExactly() {}
private:
// ReadExactlyInternal:
FileOperationResult Read(void* buffer, size_t size, bool can_log) override {
DCHECK(can_log);
return file_reader_->Read(buffer, size);
}
FileReaderInterface* file_reader_; // weak
};
} // namespace
bool FileReaderInterface::ReadExactly(void* data, size_t size) {
FileReaderReadExactly read_exactly(this);
return read_exactly.ReadExactly(data, size, true);
}
WeakFileHandleFileReader::WeakFileHandleFileReader(FileHandle file_handle)
: file_handle_(file_handle) {
}
WeakFileHandleFileReader::~WeakFileHandleFileReader() {
}
FileOperationResult WeakFileHandleFileReader::Read(void* data, size_t size) {
DCHECK_NE(file_handle_, kInvalidFileHandle);
base::checked_cast<FileOperationResult>(size);
FileOperationResult rv = ReadFile(file_handle_, data, size);
if (rv < 0) {
PLOG(ERROR) << internal::kNativeReadFunctionName;
return -1;
}
return rv;
}
FileOffset WeakFileHandleFileReader::Seek(FileOffset offset, int whence) {
DCHECK_NE(file_handle_, kInvalidFileHandle);
return LoggingSeekFile(file_handle_, offset, whence);
}
FileReader::FileReader()
: file_(),
weak_file_handle_file_reader_(kInvalidFileHandle) {
}
FileReader::~FileReader() {
}
bool FileReader::Open(const base::FilePath& path) {
CHECK(!file_.is_valid());
file_.reset(LoggingOpenFileForRead(path));
if (!file_.is_valid()) {
return false;
}
weak_file_handle_file_reader_.set_file_handle(file_.get());
return true;
}
void FileReader::Close() {
CHECK(file_.is_valid());
weak_file_handle_file_reader_.set_file_handle(kInvalidFileHandle);
file_.reset();
}
FileOperationResult FileReader::Read(void* data, size_t size) {
DCHECK(file_.is_valid());
return weak_file_handle_file_reader_.Read(data, size);
}
FileOffset FileReader::Seek(FileOffset offset, int whence) {
DCHECK(file_.is_valid());
return weak_file_handle_file_reader_.Seek(offset, whence);
}
} // namespace crashpad