100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/*
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* Copyright (c) 2003, 2007-14 Matteo Frigo
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* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
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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 General Public License as published by
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* the Free Software Foundation; either version 2 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "api/api.h"
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#include "threads/threads.h"
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static int threads_inited = 0;
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static void threads_register_hooks(void)
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{
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X(mksolver_ct_hook) = X(mksolver_ct_threads);
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X(mksolver_hc2hc_hook) = X(mksolver_hc2hc_threads);
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}
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static void threads_unregister_hooks(void)
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{
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X(mksolver_ct_hook) = 0;
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X(mksolver_hc2hc_hook) = 0;
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}
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/* should be called before all other FFTW functions! */
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int X(init_threads)(void)
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{
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if (!threads_inited) {
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planner *plnr;
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if (X(ithreads_init)())
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return 0;
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threads_register_hooks();
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/* this should be the first time the_planner is called,
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and hence the time it is configured */
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plnr = X(the_planner)();
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X(threads_conf_standard)(plnr);
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threads_inited = 1;
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}
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return 1;
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}
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void X(cleanup_threads)(void)
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{
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X(cleanup)();
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if (threads_inited) {
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X(threads_cleanup)();
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threads_unregister_hooks();
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threads_inited = 0;
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}
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}
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void X(plan_with_nthreads)(int nthreads)
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{
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planner *plnr;
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if (!threads_inited) {
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X(cleanup)();
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X(init_threads)();
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}
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A(threads_inited);
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plnr = X(the_planner)();
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plnr->nthr = X(imax)(1, nthreads);
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}
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int X(planner_nthreads)(void)
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{
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return X(the_planner)()->nthr;
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}
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void X(make_planner_thread_safe)(void)
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{
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X(threads_register_planner_hooks)();
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}
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spawnloop_function X(spawnloop_callback) = (spawnloop_function) 0;
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void *X(spawnloop_callback_data) = (void *) 0;
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void X(threads_set_callback)(void (*spawnloop)(void *(*work)(char *), char *, size_t, int, void *), void *data)
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{
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X(spawnloop_callback) = (spawnloop_function) spawnloop;
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X(spawnloop_callback_data) = data;
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}
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