tree 3d9c9412a8bab153461a12931f1107155599cf64
parent 2aa67d56cdd77167a5fb51358e8c3ce04bad68bb
author Jason A. Donenfeld <Jason@zx2c4.com> 1569148063 +0200
committer Jason A. Donenfeld <Jason@zx2c4.com> 1569316930 +0000

windows: use pseudo handle constants to implement GetCurrentProcess

There's no point in adding a function call to retrieve a constant, or
worse, a syscall to retrieve a constant. These are fixed and baked so
deep into NT they'll never change. So let's benefit from the obvious
optimization and make these constants. Go easily inlines the function
calls as well. We also take the opportunity to sunset
OpenCurrentProcessToken and restore its original behavior, since users
should be invoking this deliberately with the correct access mask.

Change-Id: I92f7de56c0fcf5b69b59f5a79d2828c7ddf3c8f6
Reviewed-on: https://go-review.googlesource.com/c/sys/+/196800
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>