1 // Copyright 2013 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 LIBRARIES_NACL_IO_STREAM_STREAM_NODE_H_ 6 #define LIBRARIES_NACL_IO_STREAM_STREAM_NODE_H_ 7 8 #include <map> 9 #include <string> 10 11 #include "nacl_io/node.h" 12 #include "nacl_io/pipe/pipe_event_emitter.h" 13 #include "sdk_util/atomicops.h" 14 15 namespace nacl_io { 16 17 class StreamNode; 18 class StreamFs; 19 20 typedef sdk_util::ScopedRef<StreamNode> ScopedStreamNode; 21 22 enum StreamStateFlags { 23 SSF_CONNECTING = 0x0001, 24 SSF_SENDING = 0x0002, 25 SSF_RECVING = 0x0004, 26 SSF_CLOSING = 0x0008, 27 SSF_LISTENING = 0x000f, 28 SSF_CAN_SEND = 0x0020, 29 SSF_CAN_RECV = 0x0040, 30 SSF_CAN_ACCEPT = 0x0080, 31 SSF_CAN_CONNECT = 0x00f0, 32 SSF_NON_BLOCK = 0x1000, 33 SSF_ERROR = 0x4000, 34 SSF_CLOSED = 0x8000 35 }; 36 37 class StreamNode : public Node { 38 public: 39 explicit StreamNode(Filesystem* fs); 40 41 virtual Error Init(int open_flags); 42 43 // Attempts to pump input and output 44 virtual void QueueInput(); 45 virtual void QueueOutput(); 46 47 void SetStreamFlags(uint32_t bits); 48 void ClearStreamFlags(uint32_t bits); 49 uint32_t GetStreamFlags(); 50 bool TestStreamFlags(uint32_t bits); 51 52 StreamFs* stream(); 53 54 protected: 55 int read_timeout_; 56 int write_timeout_; 57 58 private: 59 sdk_util::Atomic32 stream_state_flags_; 60 }; 61 62 } // namespace nacl_io 63 64 #endif // LIBRARIES_NACL_IO_STREAM_STREAM_NODE_H_ 65
