From 8ffec2a3aba6f114784e11f89ef1d57a096ae540 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 19:39:29 +0200 Subject: Adding upstream version 8.32. Signed-off-by: Daniel Baumann --- lib/nproc.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 lib/nproc.h (limited to 'lib/nproc.h') diff --git a/lib/nproc.h b/lib/nproc.h new file mode 100644 index 0000000..11d9a19 --- /dev/null +++ b/lib/nproc.h @@ -0,0 +1,46 @@ +/* Detect the number of processors. + + Copyright (C) 2009-2020 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, see . */ + +/* Written by Glen Lenker and Bruno Haible. */ + +/* Allow the use in C++ code. */ +#ifdef __cplusplus +extern "C" { +#endif + +/* A "processor" in this context means a thread execution unit, that is either + - an execution core in a (possibly multi-core) chip, in a (possibly multi- + chip) module, in a single computer, or + - a thread execution unit inside a core + (hyper-threading, see ). + Which of the two definitions is used, is unspecified. */ + +enum nproc_query +{ + NPROC_ALL, /* total number of processors */ + NPROC_CURRENT, /* processors available to the current process */ + NPROC_CURRENT_OVERRIDABLE /* likewise, but overridable through the + OMP_NUM_THREADS environment variable */ +}; + +/* Return the total number of processors. The result is guaranteed to + be at least 1. */ +extern unsigned long int num_processors (enum nproc_query query); + +#ifdef __cplusplus +} +#endif /* C++ */ -- cgit v1.2.3