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annotate src/os/solaris/vm/os_solaris.inline.hpp @ 1978:2ca799d83d3c
Merge
| author | ohair |
|---|---|
| date | Tue, 30 Nov 2010 18:10:20 -0800 |
| parents | f95d63e2154a |
| children | 828eafbd85cc |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 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 | |
| 0 | 39 inline const char* os::file_separator() { return "/"; } |
| 40 inline const char* os::line_separator() { return "\n"; } | |
| 41 inline const char* os::path_separator() { return ":"; } | |
| 42 | |
| 43 inline const char* os::jlong_format_specifier() { return "%lld"; } | |
| 44 inline const char* os::julong_format_specifier() { return "%llu"; } | |
| 45 | |
| 46 // File names are case-sensitive on windows only | |
| 47 inline int os::file_name_strcmp(const char* s1, const char* s2) { | |
| 48 return strcmp(s1, s2); | |
| 49 } | |
| 50 | |
| 51 inline bool os::uses_stack_guard_pages() { | |
| 52 return true; | |
| 53 } | |
| 54 | |
| 55 inline bool os::allocate_stack_guard_pages() { | |
| 56 assert(uses_stack_guard_pages(), "sanity check"); | |
| 57 int r = thr_main() ; | |
| 58 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 59 return r; | |
| 60 } | |
| 61 | |
| 62 | |
| 63 // On Solaris, reservations are made on a page by page basis, nothing to do. | |
| 64 inline void os::split_reserved_memory(char *base, size_t size, | |
| 65 size_t split, bool realloc) { | |
| 66 } | |
| 67 | |
| 68 | |
| 69 // Bang the shadow pages if they need to be touched to be mapped. | |
| 70 inline void os::bang_stack_shadow_pages() { | |
| 71 } | |
| 72 | |
| 73 inline DIR* os::opendir(const char* dirname) | |
| 74 { | |
| 75 assert(dirname != NULL, "just checking"); | |
| 76 return ::opendir(dirname); | |
| 77 } | |
| 78 | |
| 79 inline int os::readdir_buf_size(const char *path) | |
| 80 { | |
| 81 int size = pathconf(path, _PC_NAME_MAX); | |
| 82 return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1; | |
| 83 } | |
| 84 | |
| 85 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) | |
| 86 { | |
| 87 assert(dirp != NULL, "just checking"); | |
| 88 #if defined(_LP64) || defined(_GNU_SOURCE) | |
| 89 dirent* p; | |
| 90 int status; | |
| 91 | |
| 92 if((status = ::readdir_r(dirp, dbuf, &p)) != 0) { | |
| 93 errno = status; | |
| 94 return NULL; | |
| 95 } else | |
| 96 return p; | |
| 97 #else // defined(_LP64) || defined(_GNU_SOURCE) | |
| 98 return ::readdir_r(dirp, dbuf); | |
| 99 #endif // defined(_LP64) || defined(_GNU_SOURCE) | |
| 100 } | |
| 101 | |
| 102 inline int os::closedir(DIR *dirp) | |
| 103 { | |
| 104 assert(dirp != NULL, "just checking"); | |
| 105 return ::closedir(dirp); | |
| 106 } | |
| 107 | |
| 108 ////////////////////////////////////////////////////////////////////////////// | |
| 109 //////////////////////////////////////////////////////////////////////////////// | |
| 110 | |
| 111 // macros for interruptible io and system calls and system call restarting | |
| 112 | |
| 113 #define _INTERRUPTIBLE(_setup, _cmd, _result, _thread, _clear, _before, _after, _int_enable) \ | |
| 114 do { \ | |
| 115 _setup; \ | |
| 116 _before; \ | |
| 117 OSThread* _osthread = _thread->osthread(); \ | |
| 118 if (_int_enable && _thread->has_last_Java_frame()) { \ | |
| 119 /* this is java interruptible io stuff */ \ | |
| 120 if (os::is_interrupted(_thread, _clear)) { \ | |
| 121 os::Solaris::bump_interrupted_before_count(); \ | |
| 122 _result = OS_INTRPT; \ | |
| 123 } else { \ | |
| 124 /* _cmd always expands to an assignment to _result */ \ | |
| 125 if ((_cmd) < 0 && errno == EINTR \ | |
| 126 && os::is_interrupted(_thread, _clear)) { \ | |
| 127 os::Solaris::bump_interrupted_during_count(); \ | |
| 128 _result = OS_INTRPT; \ | |
| 129 } \ | |
| 130 } \ | |
| 131 } else { \ | |
| 132 /* this is normal blocking io stuff */ \ | |
| 133 _cmd; \ | |
| 134 } \ | |
| 135 _after; \ | |
| 136 } while(false) | |
| 137 | |
| 138 // Interruptible io support + restarting of interrupted system calls | |
| 139 | |
| 140 #ifndef ASSERT | |
| 141 | |
| 142 #define INTERRUPTIBLE(_cmd, _result, _clear) do { \ | |
| 143 _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO); \ | |
| 144 } while((_result == OS_ERR) && (errno == EINTR)) | |
| 145 | |
| 146 #else | |
| 147 | |
| 148 // This adds an assertion that it is only called from thread_in_native | |
| 149 // The call overhead is skipped for performance in product mode | |
| 150 #define INTERRUPTIBLE(_cmd, _result, _clear) do { \ | |
| 151 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO ); \ | |
| 152 } while((_result == OS_ERR) && (errno == EINTR)) | |
| 153 | |
| 154 #endif | |
| 155 | |
| 156 // Used for calls from _thread_in_vm, not from _thread_in_native | |
| 157 #define INTERRUPTIBLE_VM(_cmd, _result, _clear) do { \ | |
| 158 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible(_thread), UseVMInterruptibleIO ); \ | |
| 159 } while((_result == OS_ERR) && (errno == EINTR)) | |
| 160 | |
| 161 /* Use NORESTART when the system call cannot return EINTR, when something other | |
| 162 than a system call is being invoked, or when the caller must do EINTR | |
| 163 handling. */ | |
| 164 | |
| 165 #ifndef ASSERT | |
| 166 | |
| 167 #define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \ | |
| 168 _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO) | |
| 169 | |
| 170 #else | |
| 171 | |
| 172 // This adds an assertion that it is only called from thread_in_native | |
| 173 // The call overhead is skipped for performance in product mode | |
| 174 #define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \ | |
| 175 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO ) | |
| 176 | |
| 177 #endif | |
| 178 | |
| 179 // Don't attend to UseVMInterruptibleIO. Always allow interruption. | |
| 180 // Also assumes that it is called from the _thread_blocked state. | |
| 181 // Used by os_sleep(). | |
| 182 | |
| 183 #define INTERRUPTIBLE_NORESTART_VM_ALWAYS(_cmd, _result, _thread, _clear) \ | |
| 184 _INTERRUPTIBLE(os::Solaris::setup_interruptible_already_blocked(_thread), _result = _cmd, _result, _thread, _clear, , , true ) | |
| 185 | |
| 186 #define INTERRUPTIBLE_RETURN_INT(_cmd, _clear) do { \ | |
| 187 int _result; \ | |
| 188 do { \ | |
| 189 INTERRUPTIBLE(_cmd, _result, _clear); \ | |
| 190 } while((_result == OS_ERR) && (errno == EINTR)); \ | |
| 191 return _result; \ | |
| 192 } while(false) | |
| 193 | |
| 194 #define INTERRUPTIBLE_RETURN_INT_VM(_cmd, _clear) do { \ | |
| 195 int _result; \ | |
| 196 do { \ | |
| 197 INTERRUPTIBLE_VM(_cmd, _result, _clear); \ | |
| 198 } while((_result == OS_ERR) && (errno == EINTR)); \ | |
| 199 return _result; \ | |
| 200 } while(false) | |
| 201 | |
| 202 #define INTERRUPTIBLE_RETURN_INT_NORESTART(_cmd, _clear) do { \ | |
| 203 int _result; \ | |
| 204 INTERRUPTIBLE_NORESTART(_cmd, _result, _clear); \ | |
| 205 return _result; \ | |
| 206 } while(false) | |
| 207 | |
| 208 /* Use the RESTARTABLE macros when interruptible io is not needed */ | |
| 209 | |
| 210 #define RESTARTABLE(_cmd, _result) do { \ | |
| 211 do { \ | |
| 212 _result = _cmd; \ | |
| 213 } while((_result == OS_ERR) && (errno == EINTR)); \ | |
| 214 } while(false) | |
| 215 | |
| 216 #define RESTARTABLE_RETURN_INT(_cmd) do { \ | |
| 217 int _result; \ | |
| 218 RESTARTABLE(_cmd, _result); \ | |
| 219 return _result; \ | |
| 220 } while(false) | |
| 141 | 221 |
| 222 inline bool os::numa_has_static_binding() { return false; } | |
| 223 inline bool os::numa_has_group_homing() { return true; } | |
| 1972 | 224 |
| 225 #endif // OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP |