Mercurial > hg > truffle
annotate src/os/bsd/vm/os_bsd.inline.hpp @ 21821:9a227eaac2dc
8050807: Better performing performance data handling
Reviewed-by: dcubed, pnauman, ctornqvi, dholmes, mschoene
Contributed-by: gerald.thornbrugh@oracle.com
| author | gthornbr |
|---|---|
| date | Mon, 17 Nov 2014 15:51:46 -0500 |
| parents | ce8f6bb717c9 |
| children | 7848fc12602b |
| rev | line source |
|---|---|
| 3960 | 1 /* |
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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 |