text: /*
   * Copyright (C) 2009 The Android Open Source Project
   *
   * 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 HTTP_STREAM_H_
  
  #define HTTP_STREAM_H_
  
  #include "stagefright_string.h"
  
  #include <sys/types.h>
  
  #include <media/stagefright/MediaErrors.h>
  #include <utils/KeyedVector.h>
  #include <utils/threads.h>
  
  namespace android {
  
  class HTTPStream {
  public:
      HTTPStream();
      ~HTTPStream();
  
      status_t connect(const char *server, int port = 80);
      status_t disconnect();
  
      status_t send(const char *data, size_t size);
  
      // Assumes data is a '\0' terminated string.
      status_t send(const char *data);
  
      // Receive up to "size" bytes of data.
      ssize_t receive(void *data, size_t size);
  
      status_t receive_header(int *http_status);
  
      // The header key used to retrieve the status line.
      static const char *kStatusKey;
  
      bool find_header_value(
              const string &key, string *value) const;
  
      // Pass a negative value to disable the timeout.
      void setReceiveTimeout(int seconds);
  
  private:
      enum State {
          READY,
          CONNECTING,
          CONNECTED
      };
  
      State mState;
      Mutex mLock;
      int mSocket;
  
      KeyedVector<string, string> mHeaders;
  
      // Receive a line of data terminated by CRLF, line will be '\0' terminated
      // _excluding_ the termianting CRLF.
      status_t receive_line(char *line, size_t size);
  
      HTTPStream(const HTTPStream &);
      HTTPStream &operator=(const HTTPStream &);
  };
  
  }  // namespace android
  
  #endif  // HTTP_STREAM_H_
  