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windows: msvc: Define STDIN/OUT/ERR_FILENO.

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Because they are not available we've used _fileno(stdin) in some places, but
that doesn't reliably work, because stdin might be closed. This is the
prerequisite of the subsequent commit, fixing a failure introduced in
76e38b37a5.

Author: Andres Freund <andres@anarazel.de>
Reported-By: Sandeep Thakkar <sandeep.thakkar@enterprisedb.com>
Message-Id: 20220520164558.ozb7lm6unakqzezi@alap3.anarazel.de (on pgsql-packagers)
Backpatch: 15-, where 76e38b37a5 came in
This commit is contained in:
Andres Freund 2022-07-18 17:06:34 -07:00
parent 0778eb79b1
commit c290e79cf0
1 changed files with 8 additions and 0 deletions
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8
src/include/port/win32_msvc/unistd.h
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@ -1 +1,9 @@
/* src/include/port/win32_msvc/unistd.h */
/*
* MSVC does not define these, nor does _fileno(stdin) etc reliably work
* (returns -1 if stdin/out/err are closed).
*/
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2