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ng_sscfu.c
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ng_sscfu_cust.h
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Editing: ng_sscfu_cust.h
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2001-2003 * Fraunhofer Institute for Open Communication Systems (FhG Fokus). * All rights reserved. * * Author: Harti Brandt <harti@freebsd.org> * * 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. * * Customisation of the SSCFU code to ng_sscfu. * * $FreeBSD$ */ #include <sys/param.h> #include <sys/types.h> #include <sys/kernel.h> #include <sys/mbuf.h> #include <sys/queue.h> #include <sys/callout.h> #include <sys/systm.h> #include <sys/malloc.h> #include <machine/stdarg.h> /* * Allocate zeroed or non-zeroed memory of some size and cast it. * Return NULL on failure. */ #ifndef SSCFU_DEBUG #define MEMINIT() \ MALLOC_DECLARE(M_NG_SSCFU); \ DECL_SIGQ_GET #define MEMZALLOC(PTR, CAST, SIZE) \ ((PTR) = (CAST)malloc((SIZE), M_NG_SSCFU, M_NOWAIT | M_ZERO)) #define MEMFREE(PTR) \ free(PTR, M_NG_SSCFU) #define SIG_ALLOC(PTR) \ MEMZALLOC(PTR, struct sscfu_sig *, sizeof(struct sscfu_sig)) #define SIG_FREE(PTR) \ MEMFREE(PTR) #else #define MEMINIT() \ MALLOC_DEFINE(M_NG_SSCFU_INS, "sscfu_ins", "SSCFU instances"); \ MALLOC_DEFINE(M_NG_SSCFU_SIG, "sscfu_sig", "SSCFU signals"); \ DECL_SIGQ_GET #define MEMZALLOC(PTR, CAST, SIZE) \ ((PTR) = (CAST)malloc((SIZE), M_NG_SSCFU_INS, M_NOWAIT | M_ZERO)) #define MEMFREE(PTR) \ free(PTR, M_NG_SSCFU_INS) #define SIG_ALLOC(PTR) \ ((PTR) = malloc(sizeof(struct sscfu_sig), \ M_NG_SSCFU_SIG, M_NOWAIT | M_ZERO)) #define SIG_FREE(PTR) \ free(PTR, M_NG_SSCFU_SIG) #endif /* * Signal queues */ typedef TAILQ_ENTRY(sscfu_sig) sscfu_sigq_link_t; typedef TAILQ_HEAD(sscfu_sigq, sscfu_sig) sscfu_sigq_head_t; #define SIGQ_INIT(Q) TAILQ_INIT(Q) #define SIGQ_APPEND(Q, S) TAILQ_INSERT_TAIL(Q, S, link) #define SIGQ_GET(Q) ng_sscfu_sigq_get((Q)) #define DECL_SIGQ_GET \ static __inline struct sscfu_sig * \ ng_sscfu_sigq_get(struct sscfu_sigq *q) \ { \ struct sscfu_sig *s; \ \ s = TAILQ_FIRST(q); \ if (s != NULL) \ TAILQ_REMOVE(q, s, link); \ return (s); \ } #define SIGQ_CLEAR(Q) \ do { \ struct sscfu_sig *_s1, *_s2; \ \ _s1 = TAILQ_FIRST(Q); \ while (_s1 != NULL) { \ _s2 = TAILQ_NEXT(_s1, link); \ if (_s1->m) \ MBUF_FREE(_s1->m); \ SIG_FREE(_s1); \ _s1 = _s2; \ } \ TAILQ_INIT(Q); \ } while (0) /* * Message buffers */ #define MBUF_FREE(M) m_freem(M) #ifdef SSCFU_DEBUG #define ASSERT(S) KASSERT(S, (#S)) #else #define ASSERT(S) #endif
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