mojo/shell/data_pipe_peek.h

   1 // Copyright 2014 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 MOJO_SHELL_DATA_PIPE_PEEK_H_
   6 #define MOJO_SHELL_DATA_PIPE_PEEK_H_
   7
   8 #include <string>
   9
  10 #include "mojo/public/cpp/system/core.h"
  11
  12 namespace mojo {
  13 namespace shell {
  14
  15 // The Peek functions are only intended to be used by the
  16 // DyanmicApplicationLoader class for discovering the type of a
  17 // URL response. They are a stopgap to be replaced by real support
  18 // in the DataPipe classes.
  19
  20 // Return true and the first newline terminated line from source. Return false
  21 // if more than max_line_length bytes are scanned without seeing a newline, or
  22 // if the timeout is exceeded.
  23 bool BlockingPeekLine(DataPipeConsumerHandle source,
  24                       std::string* line,
  25                       size_t max_line_length,
  26                       MojoDeadline timeout);
  27
  28 // Return true and the first bytes_length bytes from source. Return false
  29 // if the timeout is exceeded.
  30 bool BlockingPeekNBytes(DataPipeConsumerHandle source,
  31                         std::string* bytes,
  32                         size_t bytes_length,
  33                         MojoDeadline timeout);
  34
  35 }  // namespace shell
  36 }  // namespace mojo
  37
  38 #endif  // MOJO_SHELL_DATA_PIPE_PEEK_H_