fe267a5590
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
134 lines
3.7 KiB
C
134 lines
3.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2001-2003
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* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
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* All rights reserved.
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*
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* Author: Harti Brandt <harti@freebsd.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Customisation of the SSCFU code to ng_sscfu.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/kernel.h>
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#include <sys/mbuf.h>
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#include <sys/queue.h>
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#include <sys/callout.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <machine/stdarg.h>
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/*
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* Allocate zeroed or non-zeroed memory of some size and cast it.
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* Return NULL on failure.
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*/
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#ifndef SSCFU_DEBUG
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#define MEMINIT() \
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MALLOC_DECLARE(M_NG_SSCFU); \
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DECL_SIGQ_GET
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#define MEMZALLOC(PTR, CAST, SIZE) \
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((PTR) = (CAST)malloc((SIZE), M_NG_SSCFU, M_NOWAIT | M_ZERO))
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#define MEMFREE(PTR) \
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free(PTR, M_NG_SSCFU)
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#define SIG_ALLOC(PTR) \
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MEMZALLOC(PTR, struct sscfu_sig *, sizeof(struct sscfu_sig))
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#define SIG_FREE(PTR) \
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MEMFREE(PTR)
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#else
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#define MEMINIT() \
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MALLOC_DEFINE(M_NG_SSCFU_INS, "sscfu_ins", "SSCFU instances"); \
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MALLOC_DEFINE(M_NG_SSCFU_SIG, "sscfu_sig", "SSCFU signals"); \
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DECL_SIGQ_GET
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#define MEMZALLOC(PTR, CAST, SIZE) \
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((PTR) = (CAST)malloc((SIZE), M_NG_SSCFU_INS, M_NOWAIT | M_ZERO))
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#define MEMFREE(PTR) \
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free(PTR, M_NG_SSCFU_INS)
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#define SIG_ALLOC(PTR) \
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((PTR) = malloc(sizeof(struct sscfu_sig), \
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M_NG_SSCFU_SIG, M_NOWAIT | M_ZERO))
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#define SIG_FREE(PTR) \
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free(PTR, M_NG_SSCFU_SIG)
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#endif
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/*
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* Signal queues
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*/
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typedef TAILQ_ENTRY(sscfu_sig) sscfu_sigq_link_t;
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typedef TAILQ_HEAD(sscfu_sigq, sscfu_sig) sscfu_sigq_head_t;
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#define SIGQ_INIT(Q) TAILQ_INIT(Q)
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#define SIGQ_APPEND(Q, S) TAILQ_INSERT_TAIL(Q, S, link)
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#define SIGQ_GET(Q) ng_sscfu_sigq_get((Q))
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#define DECL_SIGQ_GET \
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static __inline struct sscfu_sig * \
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ng_sscfu_sigq_get(struct sscfu_sigq *q) \
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{ \
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struct sscfu_sig *s; \
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\
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s = TAILQ_FIRST(q); \
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if (s != NULL) \
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TAILQ_REMOVE(q, s, link); \
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return (s); \
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}
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#define SIGQ_CLEAR(Q) \
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do { \
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struct sscfu_sig *_s1, *_s2; \
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\
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_s1 = TAILQ_FIRST(Q); \
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while (_s1 != NULL) { \
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_s2 = TAILQ_NEXT(_s1, link); \
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if (_s1->m) \
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MBUF_FREE(_s1->m); \
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SIG_FREE(_s1); \
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_s1 = _s2; \
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} \
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TAILQ_INIT(Q); \
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} while (0)
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/*
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* Message buffers
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*/
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#define MBUF_FREE(M) m_freem(M)
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#ifdef SSCFU_DEBUG
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#define ASSERT(S) KASSERT(S, (#S))
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#else
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#define ASSERT(S)
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#endif
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