8cf10ce184
- Adds file, readable_file, writable_file, read_only_file, write_only_file and read_write_file classes. - Adds file_share_mode, file_open_mode, file_buffering_mode enums. - Supports async read/write but only synchronous open for now. - Removes support for VS 2015 since implementation makes use of std::optional which is only available in VS 2017.
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Copyright (c) Lewis Baker
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// Licenced under MIT license. See LICENSE.txt for details.
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///////////////////////////////////////////////////////////////////////////////
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#ifndef CPPCORO_FILE_OPEN_MODE_HPP_INCLUDED
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#define CPPCORO_FILE_OPEN_MODE_HPP_INCLUDED
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namespace cppcoro
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{
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enum class file_open_mode
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{
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/// Open an existing file.
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///
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/// If file does not already exist when opening the file then raises
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/// an exception.
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open_existing,
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/// Create a new file, overwriting an existing file if one exists.
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///
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/// If a file exists at the path then it is overwitten with a new file.
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/// If no file exists at the path then a new one is created.
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create_always,
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/// Create a new file.
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///
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/// If the file already exists then raises an exception.
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create_new,
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/// Open the existing file if one exists, otherwise create a new empty
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/// file.
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create_or_open,
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/// Open the existing file, truncating the file size to zero.
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///
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/// If the file does not exist then raises an exception.
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truncate_existing
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};
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}
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#endif
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