mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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f4538e24b6
There are problems with global shared state and no API stability guarantees, and we can't rely on distros shipping the fixes we need. Both firefox and Chrome bundle their own copies too. Imported from https://github.com/sctplab/usrsctp, commit 547d3b46c64876c0336b9eef297fda58dbe1adaf Date: Thu Jul 23 21:49:32 2020 +0200 Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/870 Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1465>
246 lines
7.3 KiB
C
246 lines
7.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
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* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
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* Copyright (c) 2008-2012, by Brad Penoff. All rights reserved.
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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 are met:
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*
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* a) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* b) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the distribution.
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*
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* c) Neither the name of Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if defined(__FreeBSD__) && !defined(__Userspace__)
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#endif
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#ifndef _NETINET_SCTP_LOCK_EMPTY_H_
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#define _NETINET_SCTP_LOCK_EMPTY_H_
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/*
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* Empty Lock declarations for all other platforms. Pre-process away to
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* nothing.
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*/
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/* __Userspace__ putting lock macros in same order as sctp_lock_bsd.h ...*/
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#define SCTP_IPI_COUNT_INIT()
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#define SCTP_STATLOG_INIT_LOCK()
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#define SCTP_STATLOG_LOCK()
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#define SCTP_STATLOG_UNLOCK()
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#define SCTP_STATLOG_DESTROY()
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#define SCTP_INP_INFO_LOCK_DESTROY()
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#define SCTP_INP_INFO_LOCK_INIT()
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#define SCTP_INP_INFO_RLOCK()
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#define SCTP_INP_INFO_WLOCK()
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#define SCTP_INP_INFO_TRYLOCK() 1
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#define SCTP_INP_INFO_RUNLOCK()
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#define SCTP_INP_INFO_WUNLOCK()
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#define SCTP_WQ_ADDR_INIT()
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#define SCTP_WQ_ADDR_DESTROY()
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#define SCTP_WQ_ADDR_LOCK()
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#define SCTP_WQ_ADDR_UNLOCK()
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#define SCTP_WQ_ADDR_LOCK_ASSERT()
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#define SCTP_IPI_ADDR_INIT()
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#define SCTP_IPI_ADDR_DESTROY()
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#define SCTP_IPI_ADDR_RLOCK()
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#define SCTP_IPI_ADDR_WLOCK()
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#define SCTP_IPI_ADDR_RUNLOCK()
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#define SCTP_IPI_ADDR_WUNLOCK()
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#define SCTP_IPI_ADDR_LOCK_ASSERT()
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#define SCTP_IPI_ADDR_WLOCK_ASSERT()
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#define SCTP_IPI_ITERATOR_WQ_INIT()
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#define SCTP_IPI_ITERATOR_WQ_DESTROY()
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#define SCTP_IPI_ITERATOR_WQ_LOCK()
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#define SCTP_IPI_ITERATOR_WQ_UNLOCK()
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#define SCTP_IP_PKTLOG_INIT()
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#define SCTP_IP_PKTLOG_LOCK()
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#define SCTP_IP_PKTLOG_UNLOCK()
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#define SCTP_IP_PKTLOG_DESTROY()
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#define SCTP_INP_READ_INIT(_inp)
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#define SCTP_INP_READ_DESTROY(_inp)
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#define SCTP_INP_READ_LOCK(_inp)
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#define SCTP_INP_READ_UNLOCK(_inp)
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#define SCTP_INP_LOCK_INIT(_inp)
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#define SCTP_ASOC_CREATE_LOCK_INIT(_inp)
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#define SCTP_INP_LOCK_DESTROY(_inp)
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#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp)
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#define SCTP_INP_RLOCK(_inp)
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#define SCTP_INP_WLOCK(_inp)
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#define SCTP_INP_RLOCK_ASSERT(_inp)
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#define SCTP_INP_WLOCK_ASSERT(_inp)
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#define SCTP_INP_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
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#define SCTP_INP_READ_CONTENDED(_inp) (0) /* Don't know if this is possible */
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#define SCTP_ASOC_CREATE_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
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#define SCTP_TCB_SEND_LOCK_INIT(_tcb)
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#define SCTP_TCB_SEND_LOCK_DESTROY(_tcb)
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#define SCTP_TCB_SEND_LOCK(_tcb)
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#define SCTP_TCB_SEND_UNLOCK(_tcb)
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#define SCTP_INP_INCR_REF(_inp)
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#define SCTP_INP_DECR_REF(_inp)
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#define SCTP_ASOC_CREATE_LOCK(_inp)
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#define SCTP_INP_RUNLOCK(_inp)
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#define SCTP_INP_WUNLOCK(_inp)
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#define SCTP_ASOC_CREATE_UNLOCK(_inp)
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#define SCTP_TCB_LOCK_INIT(_tcb)
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#define SCTP_TCB_LOCK_DESTROY(_tcb)
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#define SCTP_TCB_LOCK(_tcb)
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#define SCTP_TCB_TRYLOCK(_tcb) 1
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#define SCTP_TCB_UNLOCK(_tcb)
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#define SCTP_TCB_UNLOCK_IFOWNED(_tcb)
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#define SCTP_TCB_LOCK_ASSERT(_tcb)
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#define SCTP_ITERATOR_LOCK_INIT()
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#define SCTP_ITERATOR_LOCK()
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#define SCTP_ITERATOR_UNLOCK()
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#define SCTP_ITERATOR_LOCK_DESTROY()
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#define SCTP_INCR_EP_COUNT() \
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do { \
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sctppcbinfo.ipi_count_ep++; \
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} while (0)
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#define SCTP_DECR_EP_COUNT() \
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do { \
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sctppcbinfo.ipi_count_ep--; \
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} while (0)
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#define SCTP_INCR_ASOC_COUNT() \
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do { \
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sctppcbinfo.ipi_count_asoc++; \
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} while (0)
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#define SCTP_DECR_ASOC_COUNT() \
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do { \
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sctppcbinfo.ipi_count_asoc--; \
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} while (0)
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#define SCTP_INCR_LADDR_COUNT() \
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do { \
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sctppcbinfo.ipi_count_laddr++; \
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} while (0)
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#define SCTP_DECR_LADDR_COUNT() \
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do { \
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sctppcbinfo.ipi_count_laddr--; \
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} while (0)
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#define SCTP_INCR_RADDR_COUNT() \
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do { \
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sctppcbinfo.ipi_count_raddr++; \
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} while (0)
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#define SCTP_DECR_RADDR_COUNT() \
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do { \
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sctppcbinfo.ipi_count_raddr--; \
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} while (0)
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#define SCTP_INCR_CHK_COUNT() \
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do { \
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sctppcbinfo.ipi_count_chunk++; \
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} while (0)
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#define SCTP_DECR_CHK_COUNT() \
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do { \
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sctppcbinfo.ipi_count_chunk--; \
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} while (0)
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#define SCTP_INCR_READQ_COUNT() \
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do { \
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sctppcbinfo.ipi_count_readq++; \
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} while (0)
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#define SCTP_DECR_READQ_COUNT() \
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do { \
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sctppcbinfo.ipi_count_readq--; \
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} while (0)
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#define SCTP_INCR_STRMOQ_COUNT() \
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do { \
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sctppcbinfo.ipi_count_strmoq++; \
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} while (0)
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#define SCTP_DECR_STRMOQ_COUNT() \
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do { \
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sctppcbinfo.ipi_count_strmoq--; \
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} while (0)
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/* these were in sctp_lock_empty.h but aren't in sctp_lock_bsd.h ... */
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#if 0
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#define SCTP_IPI_ADDR_LOCK()
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#define SCTP_IPI_ADDR_UNLOCK()
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#endif
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/* These were in sctp_lock_empty.h because they were commented out within
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* within user_include/user_socketvar.h . If they are NOT commented out
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* in user_socketvar.h (because that seems the more natural place for them
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* to live), then change this "if" to 0. Keep the "if" as 1 if these ARE
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* indeed commented out in user_socketvar.h .
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*
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* This modularity is kept so this file can easily be chosen as an alternative
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* to SCTP_PROCESS_LEVEL_LOCKS. If one defines SCTP_PROCESS_LEVEL_LOCKS in
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* user_include/opt_sctp.h, then the file sctp_process_lock.h (which we didn't
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* implement) is used, and that declares these locks already (so using
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* SCTP_PROCESS_LEVEL_LOCKS *requires* that these defintions be commented out
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* in user_socketvar.h).
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*/
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#if 1
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#define SOCK_LOCK(_so)
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#define SOCK_UNLOCK(_so)
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#define SOCKBUF_LOCK(_so_buf)
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#define SOCKBUF_UNLOCK(_so_buf)
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#define SOCKBUF_LOCK_ASSERT(_so_buf)
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#endif
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#endif
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