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https://gitea.osmocom.org/cellular-infrastructure/osmo-trx.git
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989fe75038
2fc2b594da6e329577b195cb2543a8dd9e1b9ed0 changed std::thread to pthread for proper affinity to circumvent startup issues, so just stick to pthread instead of mixing std::thread and pthread, which made tracking thread creation difficult due to different functions. Change-Id: I0ba2fd958530394b9d99ed82111064d428c5870f
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
/*
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* (C) 2023 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
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* All Rights Reserved
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*
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* Author: Eric Wild <ewild@sysmocom.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <cerrno>
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#include <thread>
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extern "C" {
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#include <pthread.h>
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}
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#include "threadsched.h"
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sched_params::target scheduling_target;
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void set_sched_target(sched_params::target t)
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{
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scheduling_target = t;
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}
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void set_name_aff_sched(std::thread::native_handle_type h, const char *name, int cpunum, int schedtype, int prio)
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{
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pthread_setname_np(h, name);
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cpu_set_t cpuset;
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CPU_ZERO(&cpuset);
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CPU_SET(cpunum, &cpuset);
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if (pthread_setaffinity_np(h, sizeof(cpuset), &cpuset) < 0) {
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std::cerr << name << " affinity: errreur! " << std::strerror(errno);
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return exit(0);
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}
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sched_param sch_params;
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sch_params.sched_priority = prio;
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if (pthread_setschedparam(h, schedtype, &sch_params) < 0) {
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std::cerr << name << " sched: errreur! " << std::strerror(errno);
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return exit(0);
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}
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}
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static pthread_t do_spawn_thr(const char *name, int cpunum, int schedtype, int prio, worker_func_sig fun, void *arg)
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{
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pthread_t thread;
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pthread_attr_t attr;
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pthread_attr_init(&attr);
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sched_param sch_params;
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sch_params.sched_priority = prio;
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cpu_set_t cpuset;
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CPU_ZERO(&cpuset);
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CPU_SET(cpunum, &cpuset);
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auto a = pthread_attr_setaffinity_np(&attr, sizeof(cpu_set_t), &cpuset);
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a |= pthread_attr_setschedpolicy(&attr, schedtype);
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a |= pthread_attr_setschedparam(&attr, &sch_params);
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a |= pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
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if (a)
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std::cerr << "thread arg rc:" << a << std::endl;
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pthread_create(&thread, &attr, fun, arg);
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pthread_setname_np(thread, name);
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pthread_attr_destroy(&attr);
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return thread;
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}
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void set_name_aff_sched(std::thread::native_handle_type h, sched_params::thread_names name)
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{
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auto tgt = schdp[scheduling_target][name];
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// std::cerr << "scheduling for: " << tgt.name << ":" << tgt.core << std::endl;
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set_name_aff_sched(h, tgt.name, tgt.core, tgt.schedtype, tgt.prio);
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}
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void set_name_aff_sched(sched_params::thread_names name)
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{
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set_name_aff_sched(pthread_self(), name);
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}
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pthread_t spawn_worker_thread(sched_params::thread_names name, worker_func_sig fun, void *arg)
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{
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auto tgt = schdp[scheduling_target][name];
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// std::cerr << "scheduling for: " << tgt.name << ":" << tgt.core << " prio:" << tgt.prio << std::endl;
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return do_spawn_thr(tgt.name, tgt.core, tgt.schedtype, tgt.prio, fun, arg);
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}
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