what is __close?
lazarus / 38-Networking and Web Programming

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cnyahoo · 2016-03-28 05:29

I saw a example code listed prev topic about epoll, I cant find
__close declaration about it? would you please tell me. thank you.

I use delphi 7 some years ago,but newier for freepascal on linux.

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marcov · 2016-03-28 13:23

Probably something Kylix or Delphi internal. Functions starting with _
or __ are nearly always internal and undocumented.

FPC is not compatible with internal Delphi identifiers (and I assume
even Delphi isn't over large periods).

If it is *nix related, it might be simply baseunix.fpclose()

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cnyahoo · 2016-04-13 03:06

thanks.

as i install fpc apt-get install lazarus,the version is 2.6.

upgrade it (https://sourceforge.net/projects/lazarus/files/Lazarus%20L
inux%20i386%20DEB/Lazarus%201.6/)

all ok

__close is   function __close(Handle: Integer): Integer;
cdecl;external clib name 'close' ,which conflicts with system
routines  close(f:ttextfile).

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marcov · 2016-04-13 08:01

FPC worked around that same problem by using a "fp" syntax. So the
corresponding function there is baseunix.fpclose()

While on Linux baseunix calls translate to direct kernel syscalls not
libc externals, I think you can still safely use baseunix.fpclose().
Afaik libc doesn't add anything to that call (it has the
fdclose(*file) functions for that)