Thu, 24 May 2018 17:06:56 +0800
Merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | #ifndef OS_BSD_VM_OS_BSD_INLINE_HPP |
aoqi@0 | 26 | #define OS_BSD_VM_OS_BSD_INLINE_HPP |
aoqi@0 | 27 | |
aoqi@0 | 28 | #include "runtime/atomic.inline.hpp" |
goetz@6911 | 29 | #include "runtime/orderAccess.inline.hpp" |
aoqi@0 | 30 | #include "runtime/os.hpp" |
aoqi@0 | 31 | |
aoqi@0 | 32 | // System includes |
aoqi@0 | 33 | |
aoqi@0 | 34 | #include <unistd.h> |
aoqi@0 | 35 | #include <sys/socket.h> |
aoqi@0 | 36 | #include <sys/poll.h> |
aoqi@0 | 37 | #include <netdb.h> |
aoqi@0 | 38 | |
aoqi@0 | 39 | inline void* os::thread_local_storage_at(int index) { |
aoqi@0 | 40 | return pthread_getspecific((pthread_key_t)index); |
aoqi@0 | 41 | } |
aoqi@0 | 42 | |
aoqi@0 | 43 | inline const char* os::file_separator() { |
aoqi@0 | 44 | return "/"; |
aoqi@0 | 45 | } |
aoqi@0 | 46 | |
aoqi@0 | 47 | inline const char* os::line_separator() { |
aoqi@0 | 48 | return "\n"; |
aoqi@0 | 49 | } |
aoqi@0 | 50 | |
aoqi@0 | 51 | inline const char* os::path_separator() { |
aoqi@0 | 52 | return ":"; |
aoqi@0 | 53 | } |
aoqi@0 | 54 | |
aoqi@0 | 55 | // File names are case-sensitive on windows only |
aoqi@0 | 56 | inline int os::file_name_strcmp(const char* s1, const char* s2) { |
aoqi@0 | 57 | return strcmp(s1, s2); |
aoqi@0 | 58 | } |
aoqi@0 | 59 | |
aoqi@0 | 60 | inline bool os::obsolete_option(const JavaVMOption *option) { |
aoqi@0 | 61 | return false; |
aoqi@0 | 62 | } |
aoqi@0 | 63 | |
aoqi@0 | 64 | inline bool os::uses_stack_guard_pages() { |
aoqi@0 | 65 | return true; |
aoqi@0 | 66 | } |
aoqi@0 | 67 | |
aoqi@0 | 68 | inline bool os::allocate_stack_guard_pages() { |
aoqi@0 | 69 | assert(uses_stack_guard_pages(), "sanity check"); |
aoqi@0 | 70 | #if !defined(__FreeBSD__) || __FreeBSD__ < 5 |
aoqi@0 | 71 | // Since FreeBSD 4 uses malloc() for allocating the thread stack |
aoqi@0 | 72 | // there is no need to do anything extra to allocate the guard pages |
aoqi@0 | 73 | return false; |
aoqi@0 | 74 | #else |
aoqi@0 | 75 | // FreeBSD 5+ uses mmap MAP_STACK for allocating the thread stacks. |
aoqi@0 | 76 | // Must 'allocate' them or guard pages are ignored. |
aoqi@0 | 77 | return true; |
aoqi@0 | 78 | #endif |
aoqi@0 | 79 | } |
aoqi@0 | 80 | |
aoqi@0 | 81 | |
aoqi@0 | 82 | // On Bsd, reservations are made on a page by page basis, nothing to do. |
aoqi@0 | 83 | inline void os::pd_split_reserved_memory(char *base, size_t size, |
aoqi@0 | 84 | size_t split, bool realloc) { |
aoqi@0 | 85 | } |
aoqi@0 | 86 | |
aoqi@0 | 87 | |
aoqi@0 | 88 | // Bang the shadow pages if they need to be touched to be mapped. |
aoqi@0 | 89 | inline void os::bang_stack_shadow_pages() { |
aoqi@0 | 90 | } |
aoqi@0 | 91 | |
aoqi@0 | 92 | inline void os::dll_unload(void *lib) { |
aoqi@0 | 93 | ::dlclose(lib); |
aoqi@0 | 94 | } |
aoqi@0 | 95 | |
aoqi@0 | 96 | inline const int os::default_file_open_flags() { return 0;} |
aoqi@0 | 97 | |
aoqi@0 | 98 | inline DIR* os::opendir(const char* dirname) |
aoqi@0 | 99 | { |
aoqi@0 | 100 | assert(dirname != NULL, "just checking"); |
aoqi@0 | 101 | return ::opendir(dirname); |
aoqi@0 | 102 | } |
aoqi@0 | 103 | |
aoqi@0 | 104 | inline int os::readdir_buf_size(const char *path) |
aoqi@0 | 105 | { |
aoqi@0 | 106 | return NAME_MAX + sizeof(dirent) + 1; |
aoqi@0 | 107 | } |
aoqi@0 | 108 | |
aoqi@0 | 109 | inline jlong os::lseek(int fd, jlong offset, int whence) { |
aoqi@0 | 110 | return (jlong) ::lseek(fd, offset, whence); |
aoqi@0 | 111 | } |
aoqi@0 | 112 | |
aoqi@0 | 113 | inline int os::fsync(int fd) { |
aoqi@0 | 114 | return ::fsync(fd); |
aoqi@0 | 115 | } |
aoqi@0 | 116 | |
aoqi@0 | 117 | inline char* os::native_path(char *path) { |
aoqi@0 | 118 | return path; |
aoqi@0 | 119 | } |
aoqi@0 | 120 | |
aoqi@0 | 121 | inline int os::ftruncate(int fd, jlong length) { |
aoqi@0 | 122 | return ::ftruncate(fd, length); |
aoqi@0 | 123 | } |
aoqi@0 | 124 | |
aoqi@0 | 125 | inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf) |
aoqi@0 | 126 | { |
aoqi@0 | 127 | dirent* p; |
aoqi@0 | 128 | int status; |
aoqi@0 | 129 | assert(dirp != NULL, "just checking"); |
aoqi@0 | 130 | |
aoqi@0 | 131 | // NOTE: Bsd readdir_r (on RH 6.2 and 7.2 at least) is NOT like the POSIX |
aoqi@0 | 132 | // version. Here is the doc for this function: |
aoqi@0 | 133 | // http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_262.html |
aoqi@0 | 134 | |
aoqi@0 | 135 | if((status = ::readdir_r(dirp, dbuf, &p)) != 0) { |
aoqi@0 | 136 | errno = status; |
aoqi@0 | 137 | return NULL; |
aoqi@0 | 138 | } else |
aoqi@0 | 139 | return p; |
aoqi@0 | 140 | } |
aoqi@0 | 141 | |
aoqi@0 | 142 | inline int os::closedir(DIR *dirp) { |
aoqi@0 | 143 | assert(dirp != NULL, "argument is NULL"); |
aoqi@0 | 144 | return ::closedir(dirp); |
aoqi@0 | 145 | } |
aoqi@0 | 146 | |
aoqi@0 | 147 | // macros for restartable system calls |
aoqi@0 | 148 | |
aoqi@0 | 149 | #define RESTARTABLE(_cmd, _result) do { \ |
aoqi@0 | 150 | _result = _cmd; \ |
aoqi@0 | 151 | } while(((int)_result == OS_ERR) && (errno == EINTR)) |
aoqi@0 | 152 | |
aoqi@0 | 153 | #define RESTARTABLE_RETURN_INT(_cmd) do { \ |
aoqi@0 | 154 | int _result; \ |
aoqi@0 | 155 | RESTARTABLE(_cmd, _result); \ |
aoqi@0 | 156 | return _result; \ |
aoqi@0 | 157 | } while(false) |
aoqi@0 | 158 | |
aoqi@0 | 159 | inline bool os::numa_has_static_binding() { return true; } |
aoqi@0 | 160 | inline bool os::numa_has_group_homing() { return false; } |
aoqi@0 | 161 | |
aoqi@0 | 162 | inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) { |
aoqi@0 | 163 | size_t res; |
aoqi@0 | 164 | RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res); |
aoqi@0 | 165 | return res; |
aoqi@0 | 166 | } |
aoqi@0 | 167 | |
aoqi@0 | 168 | inline size_t os::write(int fd, const void *buf, unsigned int nBytes) { |
aoqi@0 | 169 | size_t res; |
aoqi@0 | 170 | RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res); |
aoqi@0 | 171 | return res; |
aoqi@0 | 172 | } |
aoqi@0 | 173 | |
aoqi@0 | 174 | inline int os::close(int fd) { |
aoqi@0 | 175 | return ::close(fd); |
aoqi@0 | 176 | } |
aoqi@0 | 177 | |
aoqi@0 | 178 | inline int os::socket_close(int fd) { |
aoqi@0 | 179 | return ::close(fd); |
aoqi@0 | 180 | } |
aoqi@0 | 181 | |
aoqi@0 | 182 | inline int os::socket(int domain, int type, int protocol) { |
aoqi@0 | 183 | return ::socket(domain, type, protocol); |
aoqi@0 | 184 | } |
aoqi@0 | 185 | |
aoqi@0 | 186 | inline int os::recv(int fd, char* buf, size_t nBytes, uint flags) { |
aoqi@0 | 187 | RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, flags)); |
aoqi@0 | 188 | } |
aoqi@0 | 189 | |
aoqi@0 | 190 | inline int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
aoqi@0 | 191 | RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, flags)); |
aoqi@0 | 192 | } |
aoqi@0 | 193 | |
aoqi@0 | 194 | inline int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) { |
aoqi@0 | 195 | return os::send(fd, buf, nBytes, flags); |
aoqi@0 | 196 | } |
aoqi@0 | 197 | |
aoqi@0 | 198 | inline int os::timeout(int fd, long timeout) { |
aoqi@0 | 199 | julong prevtime,newtime; |
aoqi@0 | 200 | struct timeval t; |
aoqi@0 | 201 | |
aoqi@0 | 202 | gettimeofday(&t, NULL); |
aoqi@0 | 203 | prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000; |
aoqi@0 | 204 | |
aoqi@0 | 205 | for(;;) { |
aoqi@0 | 206 | struct pollfd pfd; |
aoqi@0 | 207 | |
aoqi@0 | 208 | pfd.fd = fd; |
aoqi@0 | 209 | pfd.events = POLLIN | POLLERR; |
aoqi@0 | 210 | |
aoqi@0 | 211 | int res = ::poll(&pfd, 1, timeout); |
aoqi@0 | 212 | |
aoqi@0 | 213 | if (res == OS_ERR && errno == EINTR) { |
aoqi@0 | 214 | |
aoqi@0 | 215 | // On Bsd any value < 0 means "forever" |
aoqi@0 | 216 | |
aoqi@0 | 217 | if(timeout >= 0) { |
aoqi@0 | 218 | gettimeofday(&t, NULL); |
aoqi@0 | 219 | newtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000; |
aoqi@0 | 220 | timeout -= newtime - prevtime; |
aoqi@0 | 221 | if(timeout <= 0) |
aoqi@0 | 222 | return OS_OK; |
aoqi@0 | 223 | prevtime = newtime; |
aoqi@0 | 224 | } |
aoqi@0 | 225 | } else |
aoqi@0 | 226 | return res; |
aoqi@0 | 227 | } |
aoqi@0 | 228 | } |
aoqi@0 | 229 | |
aoqi@0 | 230 | inline int os::listen(int fd, int count) { |
aoqi@0 | 231 | return ::listen(fd, count); |
aoqi@0 | 232 | } |
aoqi@0 | 233 | |
aoqi@0 | 234 | inline int os::connect(int fd, struct sockaddr* him, socklen_t len) { |
aoqi@0 | 235 | RESTARTABLE_RETURN_INT(::connect(fd, him, len)); |
aoqi@0 | 236 | } |
aoqi@0 | 237 | |
aoqi@0 | 238 | inline int os::accept(int fd, struct sockaddr* him, socklen_t* len) { |
aoqi@0 | 239 | // At least OpenBSD and FreeBSD can return EINTR from accept. |
aoqi@0 | 240 | RESTARTABLE_RETURN_INT(::accept(fd, him, len)); |
aoqi@0 | 241 | } |
aoqi@0 | 242 | |
aoqi@0 | 243 | inline int os::recvfrom(int fd, char* buf, size_t nBytes, uint flags, |
aoqi@0 | 244 | sockaddr* from, socklen_t* fromlen) { |
aoqi@0 | 245 | RESTARTABLE_RETURN_INT((int)::recvfrom(fd, buf, nBytes, flags, from, fromlen)); |
aoqi@0 | 246 | } |
aoqi@0 | 247 | |
aoqi@0 | 248 | inline int os::sendto(int fd, char* buf, size_t len, uint flags, |
aoqi@0 | 249 | struct sockaddr *to, socklen_t tolen) { |
aoqi@0 | 250 | RESTARTABLE_RETURN_INT((int)::sendto(fd, buf, len, flags, to, tolen)); |
aoqi@0 | 251 | } |
aoqi@0 | 252 | |
aoqi@0 | 253 | inline int os::socket_shutdown(int fd, int howto) { |
aoqi@0 | 254 | return ::shutdown(fd, howto); |
aoqi@0 | 255 | } |
aoqi@0 | 256 | |
aoqi@0 | 257 | inline int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
aoqi@0 | 258 | return ::bind(fd, him, len); |
aoqi@0 | 259 | } |
aoqi@0 | 260 | |
aoqi@0 | 261 | inline int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
aoqi@0 | 262 | return ::getsockname(fd, him, len); |
aoqi@0 | 263 | } |
aoqi@0 | 264 | |
aoqi@0 | 265 | inline int os::get_host_name(char* name, int namelen) { |
aoqi@0 | 266 | return ::gethostname(name, namelen); |
aoqi@0 | 267 | } |
aoqi@0 | 268 | |
aoqi@0 | 269 | inline struct hostent* os::get_host_by_name(char* name) { |
aoqi@0 | 270 | return ::gethostbyname(name); |
aoqi@0 | 271 | } |
aoqi@0 | 272 | |
aoqi@0 | 273 | inline int os::get_sock_opt(int fd, int level, int optname, |
aoqi@0 | 274 | char *optval, socklen_t* optlen) { |
aoqi@0 | 275 | return ::getsockopt(fd, level, optname, optval, optlen); |
aoqi@0 | 276 | } |
aoqi@0 | 277 | |
aoqi@0 | 278 | inline int os::set_sock_opt(int fd, int level, int optname, |
aoqi@0 | 279 | const char* optval, socklen_t optlen) { |
aoqi@0 | 280 | return ::setsockopt(fd, level, optname, optval, optlen); |
aoqi@0 | 281 | } |
aoqi@0 | 282 | |
aoqi@0 | 283 | #endif // OS_BSD_VM_OS_BSD_INLINE_HPP |