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Makefile
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libnetmap.h
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nmctx-pthreads.c
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nmctx.c
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nmport.c
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nmreq.c
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Editing: nmctx-pthreads.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (C) 2018 Universita` di Pisa * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include <sys/types.h> #include <sys/stat.h> #include <sys/ioctl.h> #include <sys/mman.h> #include <fcntl.h> #include <stdlib.h> #include <stdio.h> #include <stdarg.h> #include <string.h> #include <unistd.h> #include <errno.h> #include <net/netmap_user.h> #include <pthread.h> #include "libnetmap.h" struct nmctx_pthread { struct nmctx up; pthread_mutex_t mutex; }; static struct nmctx_pthread nmctx_pthreadsafe; static void nmctx_pthread_lock(struct nmctx *ctx, int lock) { struct nmctx_pthread *ctxp = (struct nmctx_pthread *)ctx; if (lock) { pthread_mutex_lock(&ctxp->mutex); } else { pthread_mutex_unlock(&ctxp->mutex); } } void __attribute__ ((constructor)) nmctx_set_threadsafe(void) { struct nmctx *old; pthread_mutex_init(&nmctx_pthreadsafe.mutex, NULL); old = nmctx_set_default(&nmctx_pthreadsafe.up); nmctx_pthreadsafe.up = *old; nmctx_pthreadsafe.up.lock = nmctx_pthread_lock; } int nmctx_threadsafe;
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