xrootd
XrdSysPlatform.hh
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1 #ifndef __XRDSYS_PLATFORM_H__
2 #define __XRDSYS_PLATFORM_H__
3 /******************************************************************************/
4 /* */
5 /* X r d S y s P l a t f o r m . h h */
6 /* */
7 /* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University */
8 /* Produced by Andrew Hanushevsky for Stanford University under contract */
9 /* DE-AC02-76-SFO0515 with the Department of Energy */
10 /* */
11 /* This file is part of the XRootD software suite. */
12 /* */
13 /* XRootD is free software: you can redistribute it and/or modify it under */
14 /* the terms of the GNU Lesser General Public License as published by the */
15 /* Free Software Foundation, either version 3 of the License, or (at your */
16 /* option) any later version. */
17 /* */
18 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */
19 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
20 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
21 /* License for more details. */
22 /* */
23 /* You should have received a copy of the GNU Lesser General Public License */
24 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
25 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
26 /* */
27 /* The copyright holder's institutional names and contributor's names may not */
28 /* be used to endorse or promote products derived from this software without */
29 /* specific prior written permission of the institution or contributor. */
30 /******************************************************************************/
31 
32 // Include stdlib so that ENDIAN macros are defined properly
33 //
34 #include <cstdint>
35 #include <cstdlib>
36 
37 #ifdef __linux__
38 #include <memory.h>
39 #include <cstring>
40 #include <sys/types.h>
41 #include <sys/param.h>
42 #include <byteswap.h>
43 #define MAXNAMELEN NAME_MAX
44 #endif
45 
46 #ifdef __APPLE__
47 #include <AvailabilityMacros.h>
48 #include <sys/types.h>
49 #include <sys/param.h>
50 #include <libkern/OSByteOrder.h>
51 #define fdatasync(x) fsync(x)
52 #define MAXNAMELEN NAME_MAX
53 #ifndef dirent64
54 # define dirent64 dirent
55 #endif
56 #ifndef off64_t
57 #define off64_t int64_t
58 #endif
59 #if (!defined(MAC_OS_X_VERSION_10_5) || \
60  MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5)
61 #ifndef stat64
62 # define stat64 stat
63 #endif
64 #endif
65 #endif
66 
67 #if defined(__FreeBSD__) || (defined(__FreeBSD_kernel__) && defined(__GLIBC__))
68 #include <sys/types.h>
69 #include <sys/param.h>
70 #define MAXNAMELEN NAME_MAX
71 #endif
72 
73 #ifdef __GNU__
74 #include <sys/types.h>
75 #include <sys/param.h>
76 // These are undefined on purpose in GNU/Hurd.
77 // The values below are the ones used in Linux.
78 // The proper fix is to rewrite the code to not use hardcoded values,
79 // but instead allocate memory dynamically at runtime when sizes are known.
80 // This is true also for systems where these constants are defined.
81 #define MAXNAMELEN 255
82 #define MAXPATHLEN 4096
83 #define MAXHOSTNAMELEN 64
84 #endif
85 
86 #ifdef WIN32
87 #define MAXNAMELEN 256
88 #define MAXPATHLEN 1024
89 #endif
90 
91 // The following provides historical support for Solaris 5.10.x
92 //
93 #if defined(__solaris__) && defined(__SunOS_5_10)
94 #define posix_memalign(memp, algn, sz) \
95  ((*memp = memalign(algn, sz)) ? 0 : ENOMEM)
96 #define __USE_LEGACY_PROTOTYPES__ 1
97 #endif
98 
99 #if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__GNU__) || (defined(__FreeBSD_kernel__) && defined(__GLIBC__))
100 
101 #define S_IAMB 0x1FF /* access mode bits */
102 
103 #define STATFS statfs
104 #define STATFS_BUFF struct statfs
105 
106 #define FS_BLKFACT 4
107 
108 #define FLOCK_t struct flock
109 
110 typedef off_t offset_t;
111 
112 #define GTZ_NULL (struct timezone *)0
113 
114 #else
115 
116 #define STATFS statvfs
117 #define STATFS_BUFF struct statvfs
118 
119 #define FS_BLKFACT 1
120 
121 #define SHMDT_t char *
122 
123 #define FLOCK_t flock_t
124 
125 #define GTZ_NULL (void *)0
126 
127 #endif
128 
129 #ifdef __linux__
130 
131 #define SHMDT_t const void *
132 #endif
133 
134 // For alternative platforms
135 //
136 #ifdef __APPLE__
137 #ifndef POLLRDNORM
138 #define POLLRDNORM 0
139 #endif
140 #ifndef POLLRDBAND
141 #define POLLRDBAND 0
142 #endif
143 #ifndef POLLWRNORM
144 #define POLLWRNORM 0
145 #endif
146 #define O_LARGEFILE 0
147 #define SHMDT_t void *
148 #ifndef EDEADLOCK
149 #define EDEADLOCK EDEADLK
150 #endif
151 #endif
152 
153 #ifdef __FreeBSD__
154 #define O_LARGEFILE 0
155 typedef off_t off64_t;
156 #endif
157 
158 #if defined(__APPLE__)
159 #define bswap_16 OSSwapInt16
160 #define bswap_32 OSSwapInt32
161 #define bswap_64 OSSwapInt64
162 #endif
163 
164 static inline uint16_t bswap(uint16_t x) { return bswap_16(x); }
165 static inline uint32_t bswap(uint32_t x) { return bswap_32(x); }
166 static inline uint64_t bswap(uint64_t x) { return bswap_64(x); }
167 
168 // Only sparc platforms have structure alignment problems w/ optimization
169 // so the h2xxx() variants are used when converting network streams.
170 
171 #if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__) || \
172  defined(__IEEE_BIG_ENDIAN) || \
173  (defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN)
174 #define Xrd_Big_Endian
175 #ifndef htonll
176 #define htonll(_x_) _x_
177 #endif
178 #ifndef h2nll
179 #define h2nll(_x_, _y_) memcpy((void *)&_y_,(const void *)&_x_,sizeof(long long))
180 #endif
181 #ifndef ntohll
182 #define ntohll(_x_) _x_
183 #endif
184 #ifndef n2hll
185 #define n2hll(_x_, _y_) memcpy((void *)&_y_,(const void *)&_x_,sizeof(long long))
186 #endif
187 
188 #elif defined(_LITTLE_ENDIAN) || defined(__LITTLE_ENDIAN__) || \
189  defined(__IEEE_LITTLE_ENDIAN) || \
190  (defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN)
191 #if !defined(__GNUC__) || defined(__APPLE__)
192 
193 #if !defined(__sun) || (defined(__sun) && (!defined(_LP64) || defined(__SunOS_5_10)))
194 extern "C" unsigned long long Swap_n2hll(unsigned long long x);
195 #ifndef htonll
196 #define htonll(_x_) Swap_n2hll(_x_)
197 #endif
198 #ifndef ntohll
199 #define ntohll(_x_) Swap_n2hll(_x_)
200 #endif
201 #endif
202 
203 #else
204 
205 #ifndef htonll
206 #define htonll(_x_) __bswap_64(_x_)
207 #endif
208 #ifndef ntohll
209 #define ntohll(_x_) __bswap_64(_x_)
210 #endif
211 
212 #endif
213 
214 #ifndef h2nll
215 #define h2nll(_x_, _y_) memcpy((void *)&_y_,(const void *)&_x_,sizeof(long long));\
216  _y_ = htonll(_y_)
217 #endif
218 #ifndef n2hll
219 #define n2hll(_x_, _y_) memcpy((void *)&_y_,(const void *)&_x_,sizeof(long long));\
220  _y_ = ntohll(_y_)
221 #endif
222 
223 #else
224 #ifndef WIN32
225 #error Unable to determine target architecture endianness!
226 #endif
227 #endif
228 
229 #ifndef HAVE_STRLCPY
230 extern "C"
231 {extern size_t strlcpy(char *dst, const char *src, size_t size);}
232 #endif
233 
234 //
235 // To make socklen_t portable use SOCKLEN_t
236 //
237 #if defined(__solaris__) && !defined(__linux__)
238 # if __GNUC__ >= 3 || __GNUC_MINOR__ >= 90
239 # define XR__SUNGCC3
240 # endif
241 #endif
242 #if defined(__linux__)
243 # include <features.h>
244 # if __GNU_LIBRARY__ == 6
245 # ifndef XR__GLIBC
246 # define XR__GLIBC
247 # endif
248 # endif
249 #endif
250 #if defined(__GNU__)
251 # define XR__GLIBC
252 #endif
253 #if defined(_AIX) || \
254  (defined(XR__SUNGCC3) && !defined(__arch64__))
255 # define SOCKLEN_t size_t
256 #elif !defined(SOCKLEN_t)
257 # define SOCKLEN_t socklen_t
258 #endif
259 
260 #ifdef _LP64
261 #define PTR2INT(x) static_cast<int>((long long)x)
262 #else
263 #define PTR2INT(x) int(x)
264 #endif
265 
266 #ifdef WIN32
267 #include "XrdSys/XrdWin32.hh"
268 #define Netdata_t void *
269 #define Sokdata_t char *
270 #define IOV_INIT(data,dlen) dlen,data
271 #define MAKEDIR(path,mode) mkdir(path)
272 #define CHMOD(path, mode) {}
273 #define net_errno WSAGetLastError()
274 #else
275 #define O_BINARY 0
276 #define Netdata_t char *
277 #define Sokdata_t void *
278 #define IOV_INIT(data,dlen) data,dlen
279 #define MAKEDIR(path,mode) mkdir(path,mode)
280 #define CHMOD(path, mode) chmod(path,mode)
281 #define net_errno errno
282 #endif
283 
284 // The following gets arround a relative new gcc compiler bug
285 //
286 #define XRDABS(x) (x < 0 ? -x : x)
287 
288 #ifndef LT_MODULE_EXT
289 #define LT_MODULE_EXT ".so"
290 #endif
291 
292 #endif // __XRDSYS_PLATFORM_H__
strlcpy
size_t strlcpy(char *dst, const char *src, size_t size)
bswap
static uint16_t bswap(uint16_t x)
Definition: XrdSysPlatform.hh:164
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