Add java.io.FileDescriptor#124
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summer-alice wants to merge 3 commits intod-widget-toolkit:4.7from
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Down the line this will allow FileOutputStream.this(FileDescriptor) to work for STDIN, STDOUT, and STDERR System.out and co. outline: https://stackoverflow.com/a/14435324
'const' from fFD and fHandle were removed to allow 'setting' in the future.
Was used when in_, out_, and err were immutable but isn't required now.
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Is this ported from the Java source code or is a reimplementation? |
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| package int getFD() | ||
| { | ||
| return fFD; | ||
| } | ||
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| /// Windows file HANDLE | ||
| package void* getHandle() | ||
| { | ||
| return fHandle; | ||
| } |
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Should these be const as well? Otherwise they cannot be on the constants below.
| version (Posix) { | ||
| return fFD >= 0; | ||
| } else version (Windows) { | ||
| return (fFD >= 0) && (fHandle !is null); |
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Is fFD ever used on Windows?
| * Usually, this file descriptor is not used directly, but rather via the | ||
| * output stream known as `System.in`. | ||
| */ | ||
| public static const FileDescriptor in_; |
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I don't know if there are other static variables which are objects in the code base, but these are thread local storage, do we want that?
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I want to get System.{in,out,err} to allow the SWTException and SWTError tests to be fully implemented. In particular, this would allow the
.printStackTraceto useSystem.err_. I think it would also just be fun to have the streams working in general 😄By default, each of the PrintStreams are File{Input,Output}Stream which use a FileDescriptor (ref).