Mercurial > hg > truffle
annotate src/os/bsd/vm/os_bsd.inline.hpp @ 20901:c4691265275a
made ReplacementContext and IntrinsicContext top level classes
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 10 Apr 2015 13:21:33 +0200 |
parents | 7848fc12602b |
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rev | line source |
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
3960 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #ifndef OS_BSD_VM_OS_BSD_INLINE_HPP | |
26 #define OS_BSD_VM_OS_BSD_INLINE_HPP | |
27 | |
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28 #include "runtime/atomic.inline.hpp" |
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29 #include "runtime/orderAccess.inline.hpp" |
3960 | 30 #include "runtime/os.hpp" |
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31 |
3960 | 32 // System includes |
33 | |
34 #include <unistd.h> | |
35 #include <sys/socket.h> | |
36 #include <sys/poll.h> | |
37 #include <netdb.h> | |
38 | |
39 inline void* os::thread_local_storage_at(int index) { | |
40 return pthread_getspecific((pthread_key_t)index); | |
41 } | |
42 | |
43 inline const char* os::file_separator() { | |
44 return "/"; | |
45 } | |
46 | |
47 inline const char* os::line_separator() { | |
48 return "\n"; | |
49 } | |
50 | |
51 inline const char* os::path_separator() { | |
52 return ":"; | |
53 } | |
54 | |
55 // File names are case-sensitive on windows only | |
56 inline int os::file_name_strcmp(const char* s1, const char* s2) { | |
57 return strcmp(s1, s2); | |
58 } | |
59 | |
60 inline bool os::obsolete_option(const JavaVMOption *option) { | |
61 return false; | |
62 } | |
63 | |
64 inline bool os::uses_stack_guard_pages() { | |
65 return true; | |
66 } | |
67 | |
68 inline bool os::allocate_stack_guard_pages() { | |
69 assert(uses_stack_guard_pages(), "sanity check"); | |
70 #if !defined(__FreeBSD__) || __FreeBSD__ < 5 | |
71 // Since FreeBSD 4 uses malloc() for allocating the thread stack | |
72 // there is no need to do anything extra to allocate the guard pages | |
73 return false; | |
74 #else | |
75 // FreeBSD 5+ uses mmap MAP_STACK for allocating the thread stacks. | |
76 // Must 'allocate' them or guard pages are ignored. | |
77 return true; | |
78 #endif | |
79 } | |
80 | |
81 | |
82 // On Bsd, reservations are made on a page by page basis, nothing to do. | |
6197 | 83 inline void os::pd_split_reserved_memory(char *base, size_t size, |
3960 | 84 size_t split, bool realloc) { |
85 } | |
86 | |
87 | |
88 // Bang the shadow pages if they need to be touched to be mapped. | |
89 inline void os::bang_stack_shadow_pages() { | |
90 } | |
91 | |
92 inline void os::dll_unload(void *lib) { | |
93 ::dlclose(lib); | |
94 } | |
95 | |
96 inline const int os::default_file_open_flags() { return 0;} | |
97 | |
98 inline DIR* os::opendir(const char* dirname) | |
99 { | |
100 assert(dirname != NULL, "just checking"); | |
101 return ::opendir(dirname); | |
102 } | |
103 | |
104 inline int os::readdir_buf_size(const char *path) | |
105 { | |
106 return NAME_MAX + sizeof(dirent) + 1; | |
107 } | |
108 | |
109 inline jlong os::lseek(int fd, jlong offset, int whence) { | |
110 return (jlong) ::lseek(fd, offset, whence); | |
111 } | |
112 | |
113 inline int os::fsync(int fd) { | |
114 return ::fsync(fd); | |
115 } | |
116 | |
117 inline char* os::native_path(char *path) { | |
118 return path; | |
119 } | |
120 | |
121 inline int os::ftruncate(int fd, jlong length) { | |
122 return ::ftruncate(fd, length); | |
123 } | |
124 | |
125 inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf) | |
126 { | |
127 dirent* p; | |
128 int status; | |
129 assert(dirp != NULL, "just checking"); | |
130 | |
131 // NOTE: Bsd readdir_r (on RH 6.2 and 7.2 at least) is NOT like the POSIX | |
132 // version. Here is the doc for this function: | |
133 // http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_262.html | |
134 | |
135 if((status = ::readdir_r(dirp, dbuf, &p)) != 0) { | |
136 errno = status; | |
137 return NULL; | |
138 } else | |
139 return p; | |
140 } | |
141 | |
142 inline int os::closedir(DIR *dirp) { | |
143 assert(dirp != NULL, "argument is NULL"); | |
144 return ::closedir(dirp); | |
145 } | |
146 | |
147 // macros for restartable system calls | |
148 | |
149 #define RESTARTABLE(_cmd, _result) do { \ | |
150 _result = _cmd; \ | |
151 } while(((int)_result == OS_ERR) && (errno == EINTR)) | |
152 | |
153 #define RESTARTABLE_RETURN_INT(_cmd) do { \ | |
154 int _result; \ | |
155 RESTARTABLE(_cmd, _result); \ | |
156 return _result; \ | |
157 } while(false) | |
158 | |
159 inline bool os::numa_has_static_binding() { return true; } | |
160 inline bool os::numa_has_group_homing() { return false; } | |
161 | |
162 inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) { | |
163 size_t res; | |
164 RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res); | |
165 return res; | |
166 } | |
167 | |
168 inline size_t os::write(int fd, const void *buf, unsigned int nBytes) { | |
169 size_t res; | |
170 RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res); | |
171 return res; | |
172 } | |
173 | |
174 inline int os::close(int fd) { | |
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175 return ::close(fd); |
3960 | 176 } |
177 | |
178 inline int os::socket_close(int fd) { | |
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179 return ::close(fd); |
3960 | 180 } |
181 | |
182 inline int os::socket(int domain, int type, int protocol) { | |
183 return ::socket(domain, type, protocol); | |
184 } | |
185 | |
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186 inline int os::recv(int fd, char* buf, size_t nBytes, uint flags) { |
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187 RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, flags)); |
3960 | 188 } |
189 | |
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190 inline int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
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191 RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, flags)); |
3960 | 192 } |
193 | |
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194 inline int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) { |
3960 | 195 return os::send(fd, buf, nBytes, flags); |
196 } | |
197 | |
198 inline int os::timeout(int fd, long timeout) { | |
199 julong prevtime,newtime; | |
200 struct timeval t; | |
201 | |
202 gettimeofday(&t, NULL); | |
203 prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000; | |
204 | |
205 for(;;) { | |
206 struct pollfd pfd; | |
207 | |
208 pfd.fd = fd; | |
209 pfd.events = POLLIN | POLLERR; | |
210 | |
211 int res = ::poll(&pfd, 1, timeout); | |
212 | |
213 if (res == OS_ERR && errno == EINTR) { | |
214 | |
215 // On Bsd any value < 0 means "forever" | |
216 | |
217 if(timeout >= 0) { | |
218 gettimeofday(&t, NULL); | |
219 newtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000; | |
220 timeout -= newtime - prevtime; | |
221 if(timeout <= 0) | |
222 return OS_OK; | |
223 prevtime = newtime; | |
224 } | |
225 } else | |
226 return res; | |
227 } | |
228 } | |
229 | |
230 inline int os::listen(int fd, int count) { | |
231 return ::listen(fd, count); | |
232 } | |
233 | |
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234 inline int os::connect(int fd, struct sockaddr* him, socklen_t len) { |
3960 | 235 RESTARTABLE_RETURN_INT(::connect(fd, him, len)); |
236 } | |
237 | |
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238 inline int os::accept(int fd, struct sockaddr* him, socklen_t* len) { |
3960 | 239 // At least OpenBSD and FreeBSD can return EINTR from accept. |
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240 RESTARTABLE_RETURN_INT(::accept(fd, him, len)); |
3960 | 241 } |
242 | |
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243 inline int os::recvfrom(int fd, char* buf, size_t nBytes, uint flags, |
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244 sockaddr* from, socklen_t* fromlen) { |
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245 RESTARTABLE_RETURN_INT((int)::recvfrom(fd, buf, nBytes, flags, from, fromlen)); |
3960 | 246 } |
247 | |
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248 inline int os::sendto(int fd, char* buf, size_t len, uint flags, |
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249 struct sockaddr *to, socklen_t tolen) { |
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250 RESTARTABLE_RETURN_INT((int)::sendto(fd, buf, len, flags, to, tolen)); |
3960 | 251 } |
252 | |
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253 inline int os::socket_shutdown(int fd, int howto) { |
3960 | 254 return ::shutdown(fd, howto); |
255 } | |
256 | |
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257 inline int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
3960 | 258 return ::bind(fd, him, len); |
259 } | |
260 | |
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261 inline int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
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262 return ::getsockname(fd, him, len); |
3960 | 263 } |
264 | |
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265 inline int os::get_host_name(char* name, int namelen) { |
3960 | 266 return ::gethostname(name, namelen); |
267 } | |
268 | |
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269 inline struct hostent* os::get_host_by_name(char* name) { |
3960 | 270 return ::gethostbyname(name); |
271 } | |
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272 |
3960 | 273 inline int os::get_sock_opt(int fd, int level, int optname, |
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274 char *optval, socklen_t* optlen) { |
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275 return ::getsockopt(fd, level, optname, optval, optlen); |
3960 | 276 } |
277 | |
278 inline int os::set_sock_opt(int fd, int level, int optname, | |
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279 const char* optval, socklen_t optlen) { |
3960 | 280 return ::setsockopt(fd, level, optname, optval, optlen); |
281 } | |
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282 |
3960 | 283 #endif // OS_BSD_VM_OS_BSD_INLINE_HPP |