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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/disk_cache/file.h"
#include "base/logging.h"
#include "net/disk_cache/disk_cache.h"
namespace disk_cache {
File::File(OSFile file)
: init_(true), os_file_(0) {
}
bool File::Init(const std::wstring& name) {
NOTIMPLEMENTED();
return false;
}
File::~File() {
}
OSFile File::os_file() const {
return os_file_;
}
bool File::IsValid() const {
if (!init_)
return false;
return (0 != os_file_);
}
bool File::Read(void* buffer, size_t buffer_len, size_t offset) {
DCHECK(init_);
if (buffer_len > ULONG_MAX || offset > LONG_MAX)
return false;
NOTIMPLEMENTED();
return false;
}
bool File::Write(const void* buffer, size_t buffer_len, size_t offset) {
DCHECK(init_);
if (buffer_len > ULONG_MAX || offset > ULONG_MAX)
return false;
NOTIMPLEMENTED();
return false;
}
// We have to increase the ref counter of the file before performing the IO to
// prevent the completion to happen with an invalid handle (if the file is
// closed while the IO is in flight).
bool File::Read(void* buffer, size_t buffer_len, size_t offset,
FileIOCallback* callback, bool* completed) {
DCHECK(init_);
if (buffer_len > ULONG_MAX || offset > ULONG_MAX)
return false;
NOTIMPLEMENTED();
return false;
}
bool File::Write(const void* buffer, size_t buffer_len, size_t offset,
FileIOCallback* callback, bool* completed) {
DCHECK(init_);
return AsyncWrite(buffer, buffer_len, offset, true, callback, completed);
}
bool File::PostWrite(const void* buffer, size_t buffer_len, size_t offset) {
DCHECK(init_);
return AsyncWrite(buffer, buffer_len, offset, false, NULL, NULL);
}
bool File::AsyncWrite(const void* buffer, size_t buffer_len, size_t offset,
bool notify, FileIOCallback* callback, bool* completed) {
DCHECK(init_);
if (buffer_len > ULONG_MAX || offset > ULONG_MAX)
return false;
NOTIMPLEMENTED();
return false;
}
bool File::SetLength(size_t length) {
DCHECK(init_);
if (length > ULONG_MAX)
return false;
NOTIMPLEMENTED();
return false;
}
size_t File::GetLength() {
DCHECK(init_);
return 0;
}
} // namespace disk_cache
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