jni/minibind/channel.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MINIBIND_CHANNEL_H_
   6 #define MINIBIND_CHANNEL_H_
   7
   8 #include <stdint.h>
   9
  10 #include <vector>
  11
  12 #include "parcel.h"
  13
  14 namespace minibind {
  15
  16 class Command;
  17
  18 class Channel {
  19  public:
  20   enum {
  21     FIRST_CALL_CODE = 0x00000001,
  22     LAST_CALL_CODE  = 0x00ffffff,
  23
  24     PING_TRANSACTION = B_PACK_CHARS('_','P','N','G'),
  25   };
  26
  27   explicit Channel(uint32_t handle);
  28   ~Channel();
  29
  30   int Call(uint32_t code, const Parcel& in, Parcel* out);
  31
  32   Parcel* reader() { return &reader_; }
  33
  34   uint32_t handle() const { return handle_; }
  35
  36  private:
  37   bool ProcessCommand(uint32_t command, size_t data_remaining);
  38
  39   uint32_t handle_;
  40   int driver_;
  41
  42   Parcel reader_;
  43 };
  44
  45 }  // namespace minibind
  46
  47 #endif  // MINIBIND_CHANNEL_H_