LSST Applications 28.0.2,g0fba68d861+5b923b673a,g1fd858c14a+7a7b9dd5ed,g2c84ff76c0+5548bfee71,g30358e5240+f0e04ebe90,g35bb328faa+fcb1d3bbc8,g436fd98eb5+bdc6fcdd04,g4af146b050+742274f7cd,g4d2262a081+3efd3f8190,g4e0f332c67+cb09b8a5b6,g53246c7159+fcb1d3bbc8,g5a012ec0e7+477f9c599b,g5edb6fd927+826dfcb47f,g60b5630c4e+bdc6fcdd04,g67b6fd64d1+2218407a0c,g78460c75b0+2f9a1b4bcd,g786e29fd12+cf7ec2a62a,g7b71ed6315+fcb1d3bbc8,g87b7deb4dc+f9ac2ab1bd,g8852436030+ebf28f0d95,g89139ef638+2218407a0c,g9125e01d80+fcb1d3bbc8,g989de1cb63+2218407a0c,g9f33ca652e+42fb53f4c8,g9f7030ddb1+11b9b6f027,ga2b97cdc51+bdc6fcdd04,gab72ac2889+bdc6fcdd04,gabe3b4be73+1e0a283bba,gabf8522325+3210f02652,gb1101e3267+9c79701da9,gb58c049af0+f03b321e39,gb89ab40317+2218407a0c,gcf25f946ba+ebf28f0d95,gd6cbbdb0b4+e8f9c9c900,gd9a9a58781+fcb1d3bbc8,gde0f65d7ad+a08f294619,ge278dab8ac+3ef3db156b,ge410e46f29+2218407a0c,gf67bdafdda+2218407a0c
LSST Data Management Base Package
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lwpID.cc
Go to the documentation of this file.
1// -*- LSST-C++ -*-
2/*
3 * LSST Data Management System
4 * Copyright 2016 LSST Corporation.
5 *
6 * This product includes software developed by the
7 * LSST Project (http://www.lsst.org/).
8 *
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the LSST License Statement and
20 * the GNU General Public License along with this program. If not,
21 * see <http://www.lsstcorp.org/LegalNotices/>.
22 */
23
24// System Headers
25#include <iostream>
26#include <string>
27#if defined(__linux__)
28#include <sys/syscall.h>
29#include <unistd.h>
30#elif defined(__APPLE__)
31#include <pthread.h>
32#else
33#include <atomic>
34#endif
35
36namespace lsst {
37namespace log {
38namespace detail {
39
40unsigned lwpID() {
41
42#if defined(__linux__)
43
44 // On Linux have to do syscall
45 auto lwp = syscall(SYS_gettid);
46
47#elif defined(__APPLE__)
48
49 // OSX has a special Pthreads function to find out PID
50 auto lwp = pthread_mach_thread_np(pthread_self());
51
52#else
53
54 // On all other system just generate incremental number and call it LWP
55 static std::atomic<unsigned> threadNum(0);
56 thread_local static auto lwp = ++threadNum;
57
58#endif
59
60 return static_cast<unsigned>(lwp);
61}
62
63}}} // namespace lsst::log::detail
unsigned lwpID()
Definition lwpID.cc:40