Wed, 27 Apr 2016 01:25:04 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2003, 2014, 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 | #include "precompiled.hpp" |
aoqi@0 | 26 | #include "gc_implementation/parallelScavenge/psVirtualspace.hpp" |
aoqi@0 | 27 | #include "runtime/os.hpp" |
aoqi@0 | 28 | #include "runtime/virtualspace.hpp" |
aoqi@0 | 29 | #ifdef TARGET_OS_FAMILY_linux |
aoqi@0 | 30 | # include "os_linux.inline.hpp" |
aoqi@0 | 31 | #endif |
aoqi@0 | 32 | #ifdef TARGET_OS_FAMILY_solaris |
aoqi@0 | 33 | # include "os_solaris.inline.hpp" |
aoqi@0 | 34 | #endif |
aoqi@0 | 35 | #ifdef TARGET_OS_FAMILY_windows |
aoqi@0 | 36 | # include "os_windows.inline.hpp" |
aoqi@0 | 37 | #endif |
aoqi@0 | 38 | #ifdef TARGET_OS_FAMILY_aix |
aoqi@0 | 39 | # include "os_aix.inline.hpp" |
aoqi@0 | 40 | #endif |
aoqi@0 | 41 | #ifdef TARGET_OS_FAMILY_bsd |
aoqi@0 | 42 | # include "os_bsd.inline.hpp" |
aoqi@0 | 43 | #endif |
aoqi@0 | 44 | |
aoqi@0 | 45 | PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
aoqi@0 | 46 | |
aoqi@0 | 47 | // PSVirtualSpace |
aoqi@0 | 48 | |
aoqi@0 | 49 | PSVirtualSpace::PSVirtualSpace(ReservedSpace rs, size_t alignment) : |
aoqi@0 | 50 | _alignment(alignment) |
aoqi@0 | 51 | { |
aoqi@0 | 52 | set_reserved(rs); |
aoqi@0 | 53 | set_committed(reserved_low_addr(), reserved_low_addr()); |
aoqi@0 | 54 | DEBUG_ONLY(verify()); |
aoqi@0 | 55 | } |
aoqi@0 | 56 | |
aoqi@0 | 57 | PSVirtualSpace::PSVirtualSpace(ReservedSpace rs) : |
aoqi@0 | 58 | _alignment(os::vm_page_size()) |
aoqi@0 | 59 | { |
aoqi@0 | 60 | set_reserved(rs); |
aoqi@0 | 61 | set_committed(reserved_low_addr(), reserved_low_addr()); |
aoqi@0 | 62 | DEBUG_ONLY(verify()); |
aoqi@0 | 63 | } |
aoqi@0 | 64 | |
aoqi@0 | 65 | // Deprecated. |
aoqi@0 | 66 | PSVirtualSpace::PSVirtualSpace(): _alignment(os::vm_page_size()) { |
aoqi@0 | 67 | } |
aoqi@0 | 68 | |
aoqi@0 | 69 | // Deprecated. |
aoqi@0 | 70 | bool PSVirtualSpace::initialize(ReservedSpace rs, |
aoqi@0 | 71 | size_t commit_size) { |
aoqi@0 | 72 | set_reserved(rs); |
aoqi@0 | 73 | set_committed(reserved_low_addr(), reserved_low_addr()); |
aoqi@0 | 74 | |
aoqi@0 | 75 | // Commit to initial size. |
aoqi@0 | 76 | assert(commit_size <= rs.size(), "commit_size too big"); |
aoqi@0 | 77 | bool result = commit_size > 0 ? expand_by(commit_size) : true; |
aoqi@0 | 78 | DEBUG_ONLY(verify()); |
aoqi@0 | 79 | return result; |
aoqi@0 | 80 | } |
aoqi@0 | 81 | |
aoqi@0 | 82 | PSVirtualSpace::~PSVirtualSpace() { |
aoqi@0 | 83 | release(); |
aoqi@0 | 84 | } |
aoqi@0 | 85 | |
aoqi@0 | 86 | bool PSVirtualSpace::contains(void* p) const { |
aoqi@0 | 87 | char* const cp = (char*)p; |
aoqi@0 | 88 | return cp >= committed_low_addr() && cp < committed_high_addr(); |
aoqi@0 | 89 | } |
aoqi@0 | 90 | |
aoqi@0 | 91 | void PSVirtualSpace::release() { |
aoqi@0 | 92 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
aoqi@0 | 93 | // This may not release memory it didn't reserve. |
aoqi@0 | 94 | // Use rs.release() to release the underlying memory instead. |
aoqi@0 | 95 | _reserved_low_addr = _reserved_high_addr = NULL; |
aoqi@0 | 96 | _committed_low_addr = _committed_high_addr = NULL; |
aoqi@0 | 97 | _special = false; |
aoqi@0 | 98 | } |
aoqi@0 | 99 | |
aoqi@0 | 100 | bool PSVirtualSpace::expand_by(size_t bytes) { |
aoqi@0 | 101 | assert(is_aligned(bytes), "arg not aligned"); |
aoqi@0 | 102 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
aoqi@0 | 103 | |
aoqi@0 | 104 | if (uncommitted_size() < bytes) { |
aoqi@0 | 105 | return false; |
aoqi@0 | 106 | } |
aoqi@0 | 107 | |
aoqi@0 | 108 | char* const base_addr = committed_high_addr(); |
aoqi@0 | 109 | bool result = special() || |
aoqi@0 | 110 | os::commit_memory(base_addr, bytes, alignment(), !ExecMem); |
aoqi@0 | 111 | if (result) { |
aoqi@0 | 112 | _committed_high_addr += bytes; |
aoqi@0 | 113 | } |
aoqi@0 | 114 | |
aoqi@0 | 115 | return result; |
aoqi@0 | 116 | } |
aoqi@0 | 117 | |
aoqi@0 | 118 | bool PSVirtualSpace::shrink_by(size_t bytes) { |
aoqi@0 | 119 | assert(is_aligned(bytes), "arg not aligned"); |
aoqi@0 | 120 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
aoqi@0 | 121 | |
aoqi@0 | 122 | if (committed_size() < bytes) { |
aoqi@0 | 123 | return false; |
aoqi@0 | 124 | } |
aoqi@0 | 125 | |
aoqi@0 | 126 | char* const base_addr = committed_high_addr() - bytes; |
aoqi@0 | 127 | bool result = special() || os::uncommit_memory(base_addr, bytes); |
aoqi@0 | 128 | if (result) { |
aoqi@0 | 129 | _committed_high_addr -= bytes; |
aoqi@0 | 130 | } |
aoqi@0 | 131 | |
aoqi@0 | 132 | return result; |
aoqi@0 | 133 | } |
aoqi@0 | 134 | |
aoqi@0 | 135 | size_t |
aoqi@0 | 136 | PSVirtualSpace::expand_into(PSVirtualSpace* other_space, size_t bytes) { |
aoqi@0 | 137 | assert(is_aligned(bytes), "arg not aligned"); |
aoqi@0 | 138 | assert(grows_up(), "this space must grow up"); |
aoqi@0 | 139 | assert(other_space->grows_down(), "other space must grow down"); |
aoqi@0 | 140 | assert(reserved_high_addr() == other_space->reserved_low_addr(), |
aoqi@0 | 141 | "spaces not contiguous"); |
aoqi@0 | 142 | assert(special() == other_space->special(), "one space is special, the other is not"); |
aoqi@0 | 143 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
aoqi@0 | 144 | DEBUG_ONLY(PSVirtualSpaceVerifier other_verifier(other_space)); |
aoqi@0 | 145 | |
aoqi@0 | 146 | size_t bytes_needed = bytes; |
aoqi@0 | 147 | |
aoqi@0 | 148 | // First use the uncommitted region in this space. |
aoqi@0 | 149 | size_t tmp_bytes = MIN2(uncommitted_size(), bytes_needed); |
aoqi@0 | 150 | if (tmp_bytes > 0) { |
aoqi@0 | 151 | if (expand_by(tmp_bytes)) { |
aoqi@0 | 152 | bytes_needed -= tmp_bytes; |
aoqi@0 | 153 | } else { |
aoqi@0 | 154 | return 0; |
aoqi@0 | 155 | } |
aoqi@0 | 156 | } |
aoqi@0 | 157 | |
aoqi@0 | 158 | // Next take from the uncommitted region in the other space, and commit it. |
aoqi@0 | 159 | tmp_bytes = MIN2(other_space->uncommitted_size(), bytes_needed); |
aoqi@0 | 160 | if (tmp_bytes > 0) { |
aoqi@0 | 161 | char* const commit_base = committed_high_addr(); |
aoqi@0 | 162 | if (other_space->special() || |
aoqi@0 | 163 | os::commit_memory(commit_base, tmp_bytes, alignment(), !ExecMem)) { |
aoqi@0 | 164 | // Reduce the reserved region in the other space. |
aoqi@0 | 165 | other_space->set_reserved(other_space->reserved_low_addr() + tmp_bytes, |
aoqi@0 | 166 | other_space->reserved_high_addr(), |
aoqi@0 | 167 | other_space->special()); |
aoqi@0 | 168 | |
aoqi@0 | 169 | // Grow both reserved and committed in this space. |
aoqi@0 | 170 | _reserved_high_addr += tmp_bytes; |
aoqi@0 | 171 | _committed_high_addr += tmp_bytes; |
aoqi@0 | 172 | bytes_needed -= tmp_bytes; |
aoqi@0 | 173 | } else { |
aoqi@0 | 174 | return bytes - bytes_needed; |
aoqi@0 | 175 | } |
aoqi@0 | 176 | } |
aoqi@0 | 177 | |
aoqi@0 | 178 | // Finally take from the already committed region in the other space. |
aoqi@0 | 179 | tmp_bytes = bytes_needed; |
aoqi@0 | 180 | if (tmp_bytes > 0) { |
aoqi@0 | 181 | // Reduce both committed and reserved in the other space. |
aoqi@0 | 182 | other_space->set_committed(other_space->committed_low_addr() + tmp_bytes, |
aoqi@0 | 183 | other_space->committed_high_addr()); |
aoqi@0 | 184 | other_space->set_reserved(other_space->reserved_low_addr() + tmp_bytes, |
aoqi@0 | 185 | other_space->reserved_high_addr(), |
aoqi@0 | 186 | other_space->special()); |
aoqi@0 | 187 | |
aoqi@0 | 188 | // Grow both reserved and committed in this space. |
aoqi@0 | 189 | _reserved_high_addr += tmp_bytes; |
aoqi@0 | 190 | _committed_high_addr += tmp_bytes; |
aoqi@0 | 191 | } |
aoqi@0 | 192 | |
aoqi@0 | 193 | return bytes; |
aoqi@0 | 194 | } |
aoqi@0 | 195 | |
aoqi@0 | 196 | #ifndef PRODUCT |
aoqi@0 | 197 | bool PSVirtualSpace::is_aligned(size_t value, size_t align) { |
aoqi@0 | 198 | const size_t tmp_value = value + align - 1; |
aoqi@0 | 199 | const size_t mask = ~(align - 1); |
aoqi@0 | 200 | return (tmp_value & mask) == value; |
aoqi@0 | 201 | } |
aoqi@0 | 202 | |
aoqi@0 | 203 | bool PSVirtualSpace::is_aligned(size_t value) const { |
aoqi@0 | 204 | return is_aligned(value, alignment()); |
aoqi@0 | 205 | } |
aoqi@0 | 206 | |
aoqi@0 | 207 | bool PSVirtualSpace::is_aligned(char* value) const { |
aoqi@0 | 208 | return is_aligned((size_t)value); |
aoqi@0 | 209 | } |
aoqi@0 | 210 | |
aoqi@0 | 211 | void PSVirtualSpace::verify() const { |
aoqi@0 | 212 | assert(is_aligned(alignment(), os::vm_page_size()), "bad alignment"); |
aoqi@0 | 213 | assert(is_aligned(reserved_low_addr()), "bad reserved_low_addr"); |
aoqi@0 | 214 | assert(is_aligned(reserved_high_addr()), "bad reserved_high_addr"); |
aoqi@0 | 215 | assert(is_aligned(committed_low_addr()), "bad committed_low_addr"); |
aoqi@0 | 216 | assert(is_aligned(committed_high_addr()), "bad committed_high_addr"); |
aoqi@0 | 217 | |
aoqi@0 | 218 | // Reserved region must be non-empty or both addrs must be 0. |
aoqi@0 | 219 | assert(reserved_low_addr() < reserved_high_addr() || |
aoqi@0 | 220 | reserved_low_addr() == NULL && reserved_high_addr() == NULL, |
aoqi@0 | 221 | "bad reserved addrs"); |
aoqi@0 | 222 | assert(committed_low_addr() <= committed_high_addr(), "bad committed addrs"); |
aoqi@0 | 223 | |
aoqi@0 | 224 | if (grows_up()) { |
aoqi@0 | 225 | assert(reserved_low_addr() == committed_low_addr(), "bad low addrs"); |
aoqi@0 | 226 | assert(reserved_high_addr() >= committed_high_addr(), "bad high addrs"); |
aoqi@0 | 227 | } else { |
aoqi@0 | 228 | assert(reserved_high_addr() == committed_high_addr(), "bad high addrs"); |
aoqi@0 | 229 | assert(reserved_low_addr() <= committed_low_addr(), "bad low addrs"); |
aoqi@0 | 230 | } |
aoqi@0 | 231 | } |
aoqi@0 | 232 | |
aoqi@0 | 233 | void PSVirtualSpace::print() const { |
aoqi@0 | 234 | gclog_or_tty->print_cr("virtual space [" PTR_FORMAT "]: alignment=" |
aoqi@0 | 235 | SIZE_FORMAT "K grows %s%s", |
aoqi@0 | 236 | this, alignment() / K, grows_up() ? "up" : "down", |
aoqi@0 | 237 | special() ? " (pinned in memory)" : ""); |
aoqi@0 | 238 | gclog_or_tty->print_cr(" reserved=" SIZE_FORMAT "K" |
aoqi@0 | 239 | " [" PTR_FORMAT "," PTR_FORMAT "]" |
aoqi@0 | 240 | " committed=" SIZE_FORMAT "K" |
aoqi@0 | 241 | " [" PTR_FORMAT "," PTR_FORMAT "]", |
aoqi@0 | 242 | reserved_size() / K, |
aoqi@0 | 243 | reserved_low_addr(), reserved_high_addr(), |
aoqi@0 | 244 | committed_size() / K, |
aoqi@0 | 245 | committed_low_addr(), committed_high_addr()); |
aoqi@0 | 246 | } |
aoqi@0 | 247 | #endif // #ifndef PRODUCT |
aoqi@0 | 248 | |
aoqi@0 | 249 | void PSVirtualSpace::print_space_boundaries_on(outputStream* st) const { |
aoqi@0 | 250 | st->print_cr(" [" PTR_FORMAT ", " PTR_FORMAT ", " PTR_FORMAT ")", |
aoqi@0 | 251 | low_boundary(), high(), high_boundary()); |
aoqi@0 | 252 | } |
aoqi@0 | 253 | |
aoqi@0 | 254 | PSVirtualSpaceHighToLow::PSVirtualSpaceHighToLow(ReservedSpace rs, |
aoqi@0 | 255 | size_t alignment) : |
aoqi@0 | 256 | PSVirtualSpace(alignment) |
aoqi@0 | 257 | { |
aoqi@0 | 258 | set_reserved(rs); |
aoqi@0 | 259 | set_committed(reserved_high_addr(), reserved_high_addr()); |
aoqi@0 | 260 | DEBUG_ONLY(verify()); |
aoqi@0 | 261 | } |
aoqi@0 | 262 | |
aoqi@0 | 263 | PSVirtualSpaceHighToLow::PSVirtualSpaceHighToLow(ReservedSpace rs) { |
aoqi@0 | 264 | set_reserved(rs); |
aoqi@0 | 265 | set_committed(reserved_high_addr(), reserved_high_addr()); |
aoqi@0 | 266 | DEBUG_ONLY(verify()); |
aoqi@0 | 267 | } |
aoqi@0 | 268 | |
aoqi@0 | 269 | bool PSVirtualSpaceHighToLow::expand_by(size_t bytes) { |
aoqi@0 | 270 | assert(is_aligned(bytes), "arg not aligned"); |
aoqi@0 | 271 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
aoqi@0 | 272 | |
aoqi@0 | 273 | if (uncommitted_size() < bytes) { |
aoqi@0 | 274 | return false; |
aoqi@0 | 275 | } |
aoqi@0 | 276 | |
aoqi@0 | 277 | char* const base_addr = committed_low_addr() - bytes; |
aoqi@0 | 278 | bool result = special() || |
aoqi@0 | 279 | os::commit_memory(base_addr, bytes, alignment(), !ExecMem); |
aoqi@0 | 280 | if (result) { |
aoqi@0 | 281 | _committed_low_addr -= bytes; |
aoqi@0 | 282 | } |
aoqi@0 | 283 | |
aoqi@0 | 284 | return result; |
aoqi@0 | 285 | } |
aoqi@0 | 286 | |
aoqi@0 | 287 | bool PSVirtualSpaceHighToLow::shrink_by(size_t bytes) { |
aoqi@0 | 288 | assert(is_aligned(bytes), "arg not aligned"); |
aoqi@0 | 289 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
aoqi@0 | 290 | |
aoqi@0 | 291 | if (committed_size() < bytes) { |
aoqi@0 | 292 | return false; |
aoqi@0 | 293 | } |
aoqi@0 | 294 | |
aoqi@0 | 295 | char* const base_addr = committed_low_addr(); |
aoqi@0 | 296 | bool result = special() || os::uncommit_memory(base_addr, bytes); |
aoqi@0 | 297 | if (result) { |
aoqi@0 | 298 | _committed_low_addr += bytes; |
aoqi@0 | 299 | } |
aoqi@0 | 300 | |
aoqi@0 | 301 | return result; |
aoqi@0 | 302 | } |
aoqi@0 | 303 | |
aoqi@0 | 304 | size_t PSVirtualSpaceHighToLow::expand_into(PSVirtualSpace* other_space, |
aoqi@0 | 305 | size_t bytes) { |
aoqi@0 | 306 | assert(is_aligned(bytes), "arg not aligned"); |
aoqi@0 | 307 | assert(grows_down(), "this space must grow down"); |
aoqi@0 | 308 | assert(other_space->grows_up(), "other space must grow up"); |
aoqi@0 | 309 | assert(reserved_low_addr() == other_space->reserved_high_addr(), |
aoqi@0 | 310 | "spaces not contiguous"); |
aoqi@0 | 311 | assert(special() == other_space->special(), "one space is special in memory, the other is not"); |
aoqi@0 | 312 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
aoqi@0 | 313 | DEBUG_ONLY(PSVirtualSpaceVerifier other_verifier(other_space)); |
aoqi@0 | 314 | |
aoqi@0 | 315 | size_t bytes_needed = bytes; |
aoqi@0 | 316 | |
aoqi@0 | 317 | // First use the uncommitted region in this space. |
aoqi@0 | 318 | size_t tmp_bytes = MIN2(uncommitted_size(), bytes_needed); |
aoqi@0 | 319 | if (tmp_bytes > 0) { |
aoqi@0 | 320 | if (expand_by(tmp_bytes)) { |
aoqi@0 | 321 | bytes_needed -= tmp_bytes; |
aoqi@0 | 322 | } else { |
aoqi@0 | 323 | return 0; |
aoqi@0 | 324 | } |
aoqi@0 | 325 | } |
aoqi@0 | 326 | |
aoqi@0 | 327 | // Next take from the uncommitted region in the other space, and commit it. |
aoqi@0 | 328 | tmp_bytes = MIN2(other_space->uncommitted_size(), bytes_needed); |
aoqi@0 | 329 | if (tmp_bytes > 0) { |
aoqi@0 | 330 | char* const commit_base = committed_low_addr() - tmp_bytes; |
aoqi@0 | 331 | if (other_space->special() || |
aoqi@0 | 332 | os::commit_memory(commit_base, tmp_bytes, alignment(), !ExecMem)) { |
aoqi@0 | 333 | // Reduce the reserved region in the other space. |
aoqi@0 | 334 | other_space->set_reserved(other_space->reserved_low_addr(), |
aoqi@0 | 335 | other_space->reserved_high_addr() - tmp_bytes, |
aoqi@0 | 336 | other_space->special()); |
aoqi@0 | 337 | |
aoqi@0 | 338 | // Grow both reserved and committed in this space. |
aoqi@0 | 339 | _reserved_low_addr -= tmp_bytes; |
aoqi@0 | 340 | _committed_low_addr -= tmp_bytes; |
aoqi@0 | 341 | bytes_needed -= tmp_bytes; |
aoqi@0 | 342 | } else { |
aoqi@0 | 343 | return bytes - bytes_needed; |
aoqi@0 | 344 | } |
aoqi@0 | 345 | } |
aoqi@0 | 346 | |
aoqi@0 | 347 | // Finally take from the already committed region in the other space. |
aoqi@0 | 348 | tmp_bytes = bytes_needed; |
aoqi@0 | 349 | if (tmp_bytes > 0) { |
aoqi@0 | 350 | // Reduce both committed and reserved in the other space. |
aoqi@0 | 351 | other_space->set_committed(other_space->committed_low_addr(), |
aoqi@0 | 352 | other_space->committed_high_addr() - tmp_bytes); |
aoqi@0 | 353 | other_space->set_reserved(other_space->reserved_low_addr(), |
aoqi@0 | 354 | other_space->reserved_high_addr() - tmp_bytes, |
aoqi@0 | 355 | other_space->special()); |
aoqi@0 | 356 | |
aoqi@0 | 357 | // Grow both reserved and committed in this space. |
aoqi@0 | 358 | _reserved_low_addr -= tmp_bytes; |
aoqi@0 | 359 | _committed_low_addr -= tmp_bytes; |
aoqi@0 | 360 | } |
aoqi@0 | 361 | |
aoqi@0 | 362 | return bytes; |
aoqi@0 | 363 | } |
aoqi@0 | 364 | |
aoqi@0 | 365 | void |
aoqi@0 | 366 | PSVirtualSpaceHighToLow::print_space_boundaries_on(outputStream* st) const { |
aoqi@0 | 367 | st->print_cr(" (" PTR_FORMAT ", " PTR_FORMAT ", " PTR_FORMAT "]", |
aoqi@0 | 368 | high_boundary(), low(), low_boundary()); |
aoqi@0 | 369 | } |