os_solaris.inline.hpp revision 1887:828eafbd85cc
1/* 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 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_SOLARIS_VM_OS_SOLARIS_INLINE_HPP 26#define OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP 27 28#include "runtime/atomic.hpp" 29#include "runtime/os.hpp" 30#ifdef TARGET_OS_ARCH_solaris_x86 31# include "atomic_solaris_x86.inline.hpp" 32# include "orderAccess_solaris_x86.inline.hpp" 33#endif 34#ifdef TARGET_OS_ARCH_solaris_sparc 35# include "atomic_solaris_sparc.inline.hpp" 36# include "orderAccess_solaris_sparc.inline.hpp" 37#endif 38 39// System includes 40#include <sys/param.h> 41#include <dlfcn.h> 42#include <sys/socket.h> 43#include <sys/poll.h> 44#include <sys/filio.h> 45#include <unistd.h> 46#include <netdb.h> 47#include <setjmp.h> 48 49inline const char* os::file_separator() { return "/"; } 50inline const char* os::line_separator() { return "\n"; } 51inline const char* os::path_separator() { return ":"; } 52 53inline const char* os::jlong_format_specifier() { return "%lld"; } 54inline const char* os::julong_format_specifier() { return "%llu"; } 55 56// File names are case-sensitive on windows only 57inline int os::file_name_strcmp(const char* s1, const char* s2) { 58 return strcmp(s1, s2); 59} 60 61inline bool os::uses_stack_guard_pages() { 62 return true; 63} 64 65inline bool os::allocate_stack_guard_pages() { 66 assert(uses_stack_guard_pages(), "sanity check"); 67 int r = thr_main() ; 68 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; 69 return r; 70} 71 72 73// On Solaris, reservations are made on a page by page basis, nothing to do. 74inline void os::split_reserved_memory(char *base, size_t size, 75 size_t split, bool realloc) { 76} 77 78 79// Bang the shadow pages if they need to be touched to be mapped. 80inline void os::bang_stack_shadow_pages() { 81} 82inline void os::dll_unload(void *lib) { ::dlclose(lib); } 83 84inline DIR* os::opendir(const char* dirname) { 85 assert(dirname != NULL, "just checking"); 86 return ::opendir(dirname); 87} 88 89inline int os::readdir_buf_size(const char *path) { 90 int size = pathconf(path, _PC_NAME_MAX); 91 return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1; 92} 93 94inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) { 95 assert(dirp != NULL, "just checking"); 96#if defined(_LP64) || defined(_GNU_SOURCE) 97 dirent* p; 98 int status; 99 100 if((status = ::readdir_r(dirp, dbuf, &p)) != 0) { 101 errno = status; 102 return NULL; 103 } else 104 return p; 105#else // defined(_LP64) || defined(_GNU_SOURCE) 106 return ::readdir_r(dirp, dbuf); 107#endif // defined(_LP64) || defined(_GNU_SOURCE) 108} 109 110inline int os::closedir(DIR *dirp) { 111 assert(dirp != NULL, "argument is NULL"); 112 return ::closedir(dirp); 113} 114 115////////////////////////////////////////////////////////////////////////////// 116//////////////////////////////////////////////////////////////////////////////// 117 118// macros for interruptible io and system calls and system call restarting 119 120#define _INTERRUPTIBLE(_setup, _cmd, _result, _thread, _clear, _before, _after, _int_enable) \ 121do { \ 122 _setup; \ 123 _before; \ 124 OSThread* _osthread = _thread->osthread(); \ 125 if (_int_enable && _thread->has_last_Java_frame()) { \ 126 /* this is java interruptible io stuff */ \ 127 if (os::is_interrupted(_thread, _clear)) { \ 128 os::Solaris::bump_interrupted_before_count(); \ 129 _result = OS_INTRPT; \ 130 } else { \ 131 /* _cmd always expands to an assignment to _result */ \ 132 if ((_cmd) < 0 && errno == EINTR \ 133 && os::is_interrupted(_thread, _clear)) { \ 134 os::Solaris::bump_interrupted_during_count(); \ 135 _result = OS_INTRPT; \ 136 } \ 137 } \ 138 } else { \ 139 /* this is normal blocking io stuff */ \ 140 _cmd; \ 141 } \ 142 _after; \ 143} while(false) 144 145// Interruptible io support + restarting of interrupted system calls 146 147#ifndef ASSERT 148 149#define INTERRUPTIBLE(_cmd, _result, _clear) do { \ 150 _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO); \ 151} while((_result == OS_ERR) && (errno == EINTR)) 152 153#else 154 155// This adds an assertion that it is only called from thread_in_native 156// The call overhead is skipped for performance in product mode 157#define INTERRUPTIBLE(_cmd, _result, _clear) do { \ 158 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO ); \ 159} while((_result == OS_ERR) && (errno == EINTR)) 160 161#endif 162 163// Used for calls from _thread_in_vm, not from _thread_in_native 164#define INTERRUPTIBLE_VM(_cmd, _result, _clear) do { \ 165 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible(_thread), UseVMInterruptibleIO ); \ 166} while((_result == OS_ERR) && (errno == EINTR)) 167 168/* Use NORESTART when the system call cannot return EINTR, when something other 169 than a system call is being invoked, or when the caller must do EINTR 170 handling. */ 171 172#ifndef ASSERT 173 174#define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \ 175 _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO) 176 177#else 178 179// This adds an assertion that it is only called from thread_in_native 180// The call overhead is skipped for performance in product mode 181#define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \ 182 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO ) 183 184#endif 185 186// Don't attend to UseVMInterruptibleIO. Always allow interruption. 187// Also assumes that it is called from the _thread_blocked state. 188// Used by os_sleep(). 189 190#define INTERRUPTIBLE_NORESTART_VM_ALWAYS(_cmd, _result, _thread, _clear) \ 191 _INTERRUPTIBLE(os::Solaris::setup_interruptible_already_blocked(_thread), _result = _cmd, _result, _thread, _clear, , , true ) 192 193#define INTERRUPTIBLE_RETURN_INT(_cmd, _clear) do { \ 194 int _result; \ 195 do { \ 196 INTERRUPTIBLE(_cmd, _result, _clear); \ 197 } while((_result == OS_ERR) && (errno == EINTR)); \ 198 return _result; \ 199} while(false) 200 201#define INTERRUPTIBLE_RETURN_INT_VM(_cmd, _clear) do { \ 202 int _result; \ 203 do { \ 204 INTERRUPTIBLE_VM(_cmd, _result, _clear); \ 205 } while((_result == OS_ERR) && (errno == EINTR)); \ 206 return _result; \ 207} while(false) 208 209#define INTERRUPTIBLE_RETURN_INT_NORESTART(_cmd, _clear) do { \ 210 int _result; \ 211 INTERRUPTIBLE_NORESTART(_cmd, _result, _clear); \ 212 return _result; \ 213} while(false) 214 215/* Use the RESTARTABLE macros when interruptible io is not needed */ 216 217#define RESTARTABLE(_cmd, _result) do { \ 218 do { \ 219 _result = _cmd; \ 220 } while((_result == OS_ERR) && (errno == EINTR)); \ 221} while(false) 222 223#define RESTARTABLE_RETURN_INT(_cmd) do { \ 224 int _result; \ 225 RESTARTABLE(_cmd, _result); \ 226 return _result; \ 227} while(false) 228 229inline bool os::numa_has_static_binding() { return false; } 230inline bool os::numa_has_group_homing() { return true; } 231 232inline int os::socket(int domain, int type, int protocol) { 233 return ::socket(domain, type, protocol); 234} 235 236inline int os::listen(int fd, int count) { 237 if (fd < 0) return OS_ERR; 238 239 return ::listen(fd, count); 240} 241 242inline int os::socket_shutdown(int fd, int howto){ 243 return ::shutdown(fd, howto); 244} 245 246inline int os::get_sock_name(int fd, struct sockaddr *him, int *len){ 247 return ::getsockname(fd, him, (socklen_t*) len); 248} 249 250inline int os::get_host_name(char* name, int namelen){ 251 return ::gethostname(name, namelen); 252} 253 254inline struct hostent* os::get_host_by_name(char* name) { 255 return ::gethostbyname(name); 256} 257inline int os::get_sock_opt(int fd, int level, int optname, 258 char *optval, int* optlen){ 259 return ::getsockopt(fd, level, optname, optval, (socklen_t*) optlen); 260} 261 262inline int os::set_sock_opt(int fd, int level, int optname, 263 const char *optval, int optlen){ 264 return ::setsockopt(fd, level, optname, optval, optlen); 265} 266#endif // OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP 267