native_client_sdk/src/libraries/nacl_io/pipe/pipe_event_emitter.cc

   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 #include "nacl_io/pipe/pipe_event_emitter.h"
   6
   7 #include <algorithm>
   8
   9 namespace nacl_io {
  10
  11 PipeEventEmitter::PipeEventEmitter(size_t size)
  12     : fifo_(std::max<size_t>(1, size)) {
  13   UpdateStatus_Locked();
  14 }
  15
  16 Error PipeEventEmitter::Read_Locked(char* data, size_t len, int* out_bytes) {
  17   *out_bytes = fifo_.Read(data, len);
  18
  19   UpdateStatus_Locked();
  20   return 0;
  21 }
  22
  23 Error PipeEventEmitter::Write_Locked(const char* data,
  24                                      size_t len,
  25                                      int* out_bytes) {
  26   *out_bytes = fifo_.Write(data, len);
  27
  28   UpdateStatus_Locked();
  29   return 0;
  30 }
  31
  32 }  // namespace nacl_io