[fpc-devel] Publish some of FPC's internal cross-platform functionality
Michael Van Canneyt
michael at freepascal.org
Sat Mar 9 18:32:38 CET 2019
On Sat, 9 Mar 2019, Anton Shepelev wrote:
> Hello, all
> FreePascal has many low-level cross-platform functions
> scattered over multiple .inc files but not consolilated into
> reusable cross-platform units. Consider, for example, the
> function do_read (h: longint; addr: pointer; len: longint) : longint;
> function do_write(h: longint; addr: pointer; len: longint) : longint;
> implemented in sysfile.inc for Unix, Winows, Mac OS, MS-DOS,
> and other operatring systems. Wouldn't it be useful to
> publish them in a unit sysfile.pp, possibly along with a
> facility to translate the OS-specific error codes into a
> general enumeration?
> It would relieve the programmer of writing conditionally
> compiled OS-specific code sections for such basic operations
> as are already implemented in FreePascal's internals. I,
> for example, have to do it whenever my Windws/Unix program
> works with a file handle.
I don't think we should publish this, it forces us to maintain this
I also don't see why you need this.
You have this functionality available in a cross-platform manner
in THandleStream, or the sysutils functions.
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