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comparison: netwerk/sctp/src/netinet/sctp_lock_userspace.h

netwerk/sctp/src/netinet/sctp_lock_userspace.h

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TOR_BUG_9701
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-1:000000000000 0:ee8ea61ef8f6
1 /*-
2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
5 * Copyright (c) 2008-2012, by Brad Penoff. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * a) Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * b) Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the distribution.
16 *
17 * c) Neither the name of Cisco Systems, Inc. nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #ifdef __FreeBSD__
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37 #endif
38
39 #ifndef _NETINET_SCTP_LOCK_EMPTY_H_
40 #define _NETINET_SCTP_LOCK_EMPTY_H_
41
42 /*
43 * Empty Lock declarations for all other platforms. Pre-process away to
44 * nothing.
45 */
46
47 /* __Userspace__ putting lock macros in same order as sctp_lock_bsd.h ...*/
48
49 #define SCTP_IPI_COUNT_INIT()
50
51 #define SCTP_STATLOG_INIT_LOCK()
52 #define SCTP_STATLOG_LOCK()
53 #define SCTP_STATLOG_UNLOCK()
54 #define SCTP_STATLOG_DESTROY()
55
56 #define SCTP_INP_INFO_LOCK_DESTROY()
57
58 #define SCTP_INP_INFO_LOCK_INIT()
59 #define SCTP_INP_INFO_RLOCK()
60 #define SCTP_INP_INFO_WLOCK()
61 #define SCTP_INP_INFO_TRYLOCK() 1
62 #define SCTP_INP_INFO_RUNLOCK()
63 #define SCTP_INP_INFO_WUNLOCK()
64
65 #define SCTP_WQ_ADDR_INIT()
66 #define SCTP_WQ_ADDR_DESTROY()
67 #define SCTP_WQ_ADDR_LOCK()
68 #define SCTP_WQ_ADDR_UNLOCK()
69
70
71 #define SCTP_IPI_ADDR_INIT()
72 #define SCTP_IPI_ADDR_DESTROY()
73 #define SCTP_IPI_ADDR_RLOCK()
74 #define SCTP_IPI_ADDR_WLOCK()
75 #define SCTP_IPI_ADDR_RUNLOCK()
76 #define SCTP_IPI_ADDR_WUNLOCK()
77
78 #define SCTP_IPI_ITERATOR_WQ_INIT()
79 #define SCTP_IPI_ITERATOR_WQ_DESTROY()
80 #define SCTP_IPI_ITERATOR_WQ_LOCK()
81 #define SCTP_IPI_ITERATOR_WQ_UNLOCK()
82
83
84 #define SCTP_IP_PKTLOG_INIT()
85 #define SCTP_IP_PKTLOG_LOCK()
86 #define SCTP_IP_PKTLOG_UNLOCK()
87 #define SCTP_IP_PKTLOG_DESTROY()
88
89
90
91 #define SCTP_INP_READ_INIT(_inp)
92 #define SCTP_INP_READ_DESTROY(_inp)
93 #define SCTP_INP_READ_LOCK(_inp)
94 #define SCTP_INP_READ_UNLOCK(_inp)
95
96 #define SCTP_INP_LOCK_INIT(_inp)
97 #define SCTP_ASOC_CREATE_LOCK_INIT(_inp)
98 #define SCTP_INP_LOCK_DESTROY(_inp)
99 #define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp)
100
101
102 #define SCTP_INP_RLOCK(_inp)
103 #define SCTP_INP_WLOCK(_inp)
104
105 #define SCTP_INP_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
106
107 #define SCTP_INP_READ_CONTENDED(_inp) (0) /* Don't know if this is possible */
108
109 #define SCTP_ASOC_CREATE_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
110
111
112 #define SCTP_TCB_SEND_LOCK_INIT(_tcb)
113 #define SCTP_TCB_SEND_LOCK_DESTROY(_tcb)
114 #define SCTP_TCB_SEND_LOCK(_tcb)
115 #define SCTP_TCB_SEND_UNLOCK(_tcb)
116
117 #define SCTP_INP_INCR_REF(_inp)
118 #define SCTP_INP_DECR_REF(_inp)
119
120 #define SCTP_ASOC_CREATE_LOCK(_inp)
121
122 #define SCTP_INP_RUNLOCK(_inp)
123 #define SCTP_INP_WUNLOCK(_inp)
124 #define SCTP_ASOC_CREATE_UNLOCK(_inp)
125
126
127 #define SCTP_TCB_LOCK_INIT(_tcb)
128 #define SCTP_TCB_LOCK_DESTROY(_tcb)
129 #define SCTP_TCB_LOCK(_tcb)
130 #define SCTP_TCB_TRYLOCK(_tcb) 1
131 #define SCTP_TCB_UNLOCK(_tcb)
132 #define SCTP_TCB_UNLOCK_IFOWNED(_tcb)
133 #define SCTP_TCB_LOCK_ASSERT(_tcb)
134
135
136
137 #define SCTP_ITERATOR_LOCK_INIT()
138 #define SCTP_ITERATOR_LOCK()
139 #define SCTP_ITERATOR_UNLOCK()
140 #define SCTP_ITERATOR_LOCK_DESTROY()
141
142
143
144 #define SCTP_INCR_EP_COUNT() \
145 do { \
146 sctppcbinfo.ipi_count_ep++; \
147 } while (0)
148
149 #define SCTP_DECR_EP_COUNT() \
150 do { \
151 sctppcbinfo.ipi_count_ep--; \
152 } while (0)
153
154 #define SCTP_INCR_ASOC_COUNT() \
155 do { \
156 sctppcbinfo.ipi_count_asoc++; \
157 } while (0)
158
159 #define SCTP_DECR_ASOC_COUNT() \
160 do { \
161 sctppcbinfo.ipi_count_asoc--; \
162 } while (0)
163
164 #define SCTP_INCR_LADDR_COUNT() \
165 do { \
166 sctppcbinfo.ipi_count_laddr++; \
167 } while (0)
168
169 #define SCTP_DECR_LADDR_COUNT() \
170 do { \
171 sctppcbinfo.ipi_count_laddr--; \
172 } while (0)
173
174 #define SCTP_INCR_RADDR_COUNT() \
175 do { \
176 sctppcbinfo.ipi_count_raddr++; \
177 } while (0)
178
179 #define SCTP_DECR_RADDR_COUNT() \
180 do { \
181 sctppcbinfo.ipi_count_raddr--; \
182 } while (0)
183
184 #define SCTP_INCR_CHK_COUNT() \
185 do { \
186 sctppcbinfo.ipi_count_chunk++; \
187 } while (0)
188
189 #define SCTP_DECR_CHK_COUNT() \
190 do { \
191 sctppcbinfo.ipi_count_chunk--; \
192 } while (0)
193
194 #define SCTP_INCR_READQ_COUNT() \
195 do { \
196 sctppcbinfo.ipi_count_readq++; \
197 } while (0)
198
199 #define SCTP_DECR_READQ_COUNT() \
200 do { \
201 sctppcbinfo.ipi_count_readq--; \
202 } while (0)
203
204 #define SCTP_INCR_STRMOQ_COUNT() \
205 do { \
206 sctppcbinfo.ipi_count_strmoq++; \
207 } while (0)
208
209 #define SCTP_DECR_STRMOQ_COUNT() \
210 do { \
211 sctppcbinfo.ipi_count_strmoq--; \
212 } while (0)
213
214
215 /* not sure if __Userspace__ needs these (but copied nonetheless...) */
216 #if defined(SCTP_SO_LOCK_TESTING)
217 #define SCTP_INP_SO(sctpinp) (sctpinp)->ip_inp.inp.inp_socket
218 #define SCTP_SOCKET_LOCK(so, refcnt)
219 #define SCTP_SOCKET_UNLOCK(so, refcnt)
220 #endif
221
222
223 /* these were in sctp_lock_empty.h but aren't in sctp_lock_bsd.h ... */
224 #if 0
225 #define SCTP_IPI_ADDR_LOCK()
226 #define SCTP_IPI_ADDR_UNLOCK()
227 #endif
228
229
230 /* These were in sctp_lock_empty.h because they were commented out within
231 * within user_include/user_socketvar.h . If they are NOT commented out
232 * in user_socketvar.h (because that seems the more natural place for them
233 * to live), then change this "if" to 0. Keep the "if" as 1 if these ARE
234 * indeed commented out in user_socketvar.h .
235 *
236 * This modularity is kept so this file can easily be chosen as an alternative
237 * to SCTP_PROCESS_LEVEL_LOCKS. If one defines SCTP_PROCESS_LEVEL_LOCKS in
238 * user_include/opt_sctp.h, then the file sctp_process_lock.h (which we didn't
239 * implement) is used, and that declares these locks already (so using
240 * SCTP_PROCESS_LEVEL_LOCKS *requires* that these defintions be commented out
241 * in user_socketvar.h).
242 */
243 #if 1
244 #define SOCK_LOCK(_so)
245 #define SOCK_UNLOCK(_so)
246 #define SOCKBUF_LOCK(_so_buf)
247 #define SOCKBUF_UNLOCK(_so_buf)
248 #define SOCKBUF_LOCK_ASSERT(_so_buf)
249 #endif
250
251 #endif

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