Mercurial > gnulib
view lib/nproc.h @ 17363:5a51fb7777a9
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 19 Mar 2013 09:08:47 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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/* Detect the number of processors. Copyright (C) 2009-2013 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 2, 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 <http://www.gnu.org/licenses/>. */ /* 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 <http://en.wikipedia.org/wiki/Hyper-threading>). 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++ */