Import chromium-64.0.3282.119

net/base/upload_bytes_element_reader.h

@@ -0,0 +1,68 @@
+// 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_BYTES_ELEMENT_READER_H_
+#define NET_BASE_UPLOAD_BYTES_ELEMENT_READER_H_
+
+#include <stdint.h>
+
+#include <string>
+#include <vector>
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "net/base/net_export.h"
+#include "net/base/upload_element_reader.h"
+
+namespace net {
+
+// An UploadElementReader implementation for bytes. The caller owns |bytes|,
+// and is responsible for ensuring it outlives the UploadBytesElementReader.
+class NET_EXPORT UploadBytesElementReader : public UploadElementReader {
+ public:
+  UploadBytesElementReader(const char* bytes, uint64_t length);
+  ~UploadBytesElementReader() override;
+
+  const char* bytes() const { return bytes_; }
+  uint64_t length() const { return length_; }
+
+  // UploadElementReader overrides:
+  const UploadBytesElementReader* AsBytesReader() const override;
+  int Init(const CompletionCallback& callback) override;
+  uint64_t GetContentLength() const override;
+  uint64_t BytesRemaining() const override;
+  bool IsInMemory() const override;
+  int Read(IOBuffer* buf,
+           int buf_length,
+           const CompletionCallback& callback) override;
+
+ private:
+  const char* const bytes_;
+  const uint64_t length_;
+  uint64_t offset_;
+
+  DISALLOW_COPY_AND_ASSIGN(UploadBytesElementReader);
+};
+
+// A subclass of UplodBytesElementReader which owns the data given as a vector.
+class NET_EXPORT UploadOwnedBytesElementReader
+    : public UploadBytesElementReader {
+ public:
+  // |data| is cleared by this ctor.
+  explicit UploadOwnedBytesElementReader(std::vector<char>* data);
+  ~UploadOwnedBytesElementReader() override;
+
+  // Creates UploadOwnedBytesElementReader with a string.
+  static UploadOwnedBytesElementReader* CreateWithString(
+      const std::string& string);
+
+ private:
+  std::vector<char> data_;
+
+  DISALLOW_COPY_AND_ASSIGN(UploadOwnedBytesElementReader);
+};
+
+}  // namespace net
+
+#endif  // NET_BASE_UPLOAD_BYTES_ELEMENT_READER_H_