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// Copyright (c) 2012 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.
#ifndef NET_BASE_UPLOAD_ELEMENT_H_
#define NET_BASE_UPLOAD_ELEMENT_H_
#include <vector>
#include "base/basictypes.h"
#include "base/files/file_path.h"
#include "base/time/time.h"
#include "net/base/net_export.h"
namespace net {
// A class representing an element contained by UploadData.
class NET_EXPORT UploadElement {
public:
enum Type {
TYPE_BYTES,
TYPE_FILE,
};
UploadElement();
~UploadElement();
Type type() const { return type_; }
const char* bytes() const { return bytes_start_ ? bytes_start_ : &buf_[0]; }
uint64 bytes_length() const { return buf_.size() + bytes_length_; }
const base::FilePath& file_path() const { return file_path_; }
uint64 file_range_offset() const { return file_range_offset_; }
uint64 file_range_length() const { return file_range_length_; }
// If NULL time is returned, we do not do the check.
const base::Time& expected_file_modification_time() const {
return expected_file_modification_time_;
}
void SetToBytes(const char* bytes, int bytes_len) {
type_ = TYPE_BYTES;
buf_.assign(bytes, bytes + bytes_len);
}
// This does not copy the given data and the caller should make sure
// the data is secured somewhere else (e.g. by attaching the data
// using SetUserData).
void SetToSharedBytes(const char* bytes, int bytes_len) {
type_ = TYPE_BYTES;
bytes_start_ = bytes;
bytes_length_ = bytes_len;
}
void SetToFilePath(const base::FilePath& path) {
SetToFilePathRange(path, 0, kuint64max, base::Time());
}
// If expected_modification_time is NULL, we do not check for the file
// change. Also note that the granularity for comparison is time_t, not
// the full precision.
void SetToFilePathRange(const base::FilePath& path,
uint64 offset, uint64 length,
const base::Time& expected_modification_time) {
type_ = TYPE_FILE;
file_path_ = path;
file_range_offset_ = offset;
file_range_length_ = length;
expected_file_modification_time_ = expected_modification_time;
}
private:
Type type_;
std::vector<char> buf_;
const char* bytes_start_;
uint64 bytes_length_;
base::FilePath file_path_;
uint64 file_range_offset_;
uint64 file_range_length_;
base::Time expected_file_modification_time_;
DISALLOW_COPY_AND_ASSIGN(UploadElement);
};
#if defined(UNIT_TEST)
inline bool operator==(const UploadElement& a,
const UploadElement& b) {
if (a.type() != b.type())
return false;
if (a.type() == UploadElement::TYPE_BYTES)
return a.bytes_length() == b.bytes_length() &&
memcmp(a.bytes(), b.bytes(), b.bytes_length()) == 0;
if (a.type() == UploadElement::TYPE_FILE) {
return a.file_path() == b.file_path() &&
a.file_range_offset() == b.file_range_offset() &&
a.file_range_length() == b.file_range_length() &&
a.expected_file_modification_time() ==
b.expected_file_modification_time();
}
return false;
}
inline bool operator!=(const UploadElement& a,
const UploadElement& b) {
return !(a == b);
}
#endif // defined(UNIT_TEST)
} // namespace net
#endif // NET_BASE_UPLOAD_ELEMENT_H_
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