1 /* 2 * Copyright (c) 1997, 2009, 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 # include "incls/_precompiled.incl" 26 # include "incls/_ostream.cpp.incl" 27 28 extern "C" void jio_print(const char* s); // Declarationtion of jvm method 29 30 outputStream::outputStream(int width) { 31 _width = width; 32 _position = 0; 33 _newlines = 0; 34 _precount = 0; 35 _indentation = 0; 36 } 37 38 outputStream::outputStream(int width, bool has_time_stamps) { 39 _width = width; 40 _position = 0; 41 _newlines = 0; 42 _precount = 0; 43 _indentation = 0; 44 if (has_time_stamps) _stamp.update(); 45 } 46 47 void outputStream::update_position(const char* s, size_t len) { 48 for (size_t i = 0; i < len; i++) { 49 char ch = s[i]; 50 if (ch == '\n') { 51 _newlines += 1; 52 _precount += _position + 1; 53 _position = 0; 54 } else if (ch == '\t') { 55 int tw = 8 - (_position & 7); 56 _position += tw; 57 _precount -= tw-1; // invariant: _precount + _position == total count 58 } else { 59 _position += 1; 60 } 61 } 62 } 63 64 // Execute a vsprintf, using the given buffer if necessary. 65 // Return a pointer to the formatted string. 66 const char* outputStream::do_vsnprintf(char* buffer, size_t buflen, 67 const char* format, va_list ap, 68 bool add_cr, 69 size_t& result_len) { 70 const char* result; 71 if (add_cr) buflen--; 72 if (!strchr(format, '%')) { 73 // constant format string 74 result = format; 75 result_len = strlen(result); 76 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate 77 } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') { 78 // trivial copy-through format string 79 result = va_arg(ap, const char*); 80 result_len = strlen(result); 81 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate 82 } else if (vsnprintf(buffer, buflen, format, ap) >= 0) { 83 result = buffer; 84 result_len = strlen(result); 85 } else { 86 DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");) 87 result = buffer; 88 result_len = buflen - 1; 89 buffer[result_len] = 0; 90 } 91 if (add_cr) { 92 if (result != buffer) { 93 strncpy(buffer, result, buflen); 94 result = buffer; 95 } 96 buffer[result_len++] = '\n'; 97 buffer[result_len] = 0; 98 } 99 return result; 100 } 101 102 void outputStream::print(const char* format, ...) { 103 char buffer[O_BUFLEN]; 104 va_list ap; 105 va_start(ap, format); 106 size_t len; 107 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len); 108 write(str, len); 109 va_end(ap); 110 } 111 112 void outputStream::print_cr(const char* format, ...) { 113 char buffer[O_BUFLEN]; 114 va_list ap; 115 va_start(ap, format); 116 size_t len; 117 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len); 118 write(str, len); 119 va_end(ap); 120 } 121 122 void outputStream::vprint(const char *format, va_list argptr) { 123 char buffer[O_BUFLEN]; 124 size_t len; 125 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len); 126 write(str, len); 127 } 128 129 void outputStream::vprint_cr(const char* format, va_list argptr) { 130 char buffer[O_BUFLEN]; 131 size_t len; 132 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); 133 write(str, len); 134 } 135 136 void outputStream::fill_to(int col) { 137 int need_fill = col - position(); 138 sp(need_fill); 139 } 140 141 void outputStream::move_to(int col, int slop, int min_space) { 142 if (position() >= col + slop) 143 cr(); 144 int need_fill = col - position(); 145 if (need_fill < min_space) 146 need_fill = min_space; 147 sp(need_fill); 148 } 149 150 void outputStream::put(char ch) { 151 assert(ch != 0, "please fix call site"); 152 char buf[] = { ch, '\0' }; 153 write(buf, 1); 154 } 155 156 #define SP_USE_TABS false 157 158 void outputStream::sp(int count) { 159 if (count < 0) return; 160 if (SP_USE_TABS && count >= 8) { 161 int target = position() + count; 162 while (count >= 8) { 163 this->write("\t", 1); 164 count -= 8; 165 } 166 count = target - position(); 167 } 168 while (count > 0) { 169 int nw = (count > 8) ? 8 : count; 170 this->write(" ", nw); 171 count -= nw; 172 } 173 } 174 175 void outputStream::cr() { 176 this->write("\n", 1); 177 } 178 179 void outputStream::stamp() { 180 if (! _stamp.is_updated()) { 181 _stamp.update(); // start at 0 on first call to stamp() 182 } 183 184 // outputStream::stamp() may get called by ostream_abort(), use snprintf 185 // to avoid allocating large stack buffer in print(). 186 char buf[40]; 187 jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds()); 188 print_raw(buf); 189 } 190 191 void outputStream::stamp(bool guard, 192 const char* prefix, 193 const char* suffix) { 194 if (!guard) { 195 return; 196 } 197 print_raw(prefix); 198 stamp(); 199 print_raw(suffix); 200 } 201 202 void outputStream::date_stamp(bool guard, 203 const char* prefix, 204 const char* suffix) { 205 if (!guard) { 206 return; 207 } 208 print_raw(prefix); 209 static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz"; 210 static const int buffer_length = 32; 211 char buffer[buffer_length]; 212 const char* iso8601_result = os::iso8601_time(buffer, buffer_length); 213 if (iso8601_result != NULL) { 214 print_raw(buffer); 215 } else { 216 print_raw(error_time); 217 } 218 print_raw(suffix); 219 return; 220 } 221 222 void outputStream::indent() { 223 while (_position < _indentation) sp(); 224 } 225 226 void outputStream::print_jlong(jlong value) { 227 // N.B. Same as INT64_FORMAT 228 print(os::jlong_format_specifier(), value); 229 } 230 231 void outputStream::print_julong(julong value) { 232 // N.B. Same as UINT64_FORMAT 233 print(os::julong_format_specifier(), value); 234 } 235 236 stringStream::stringStream(size_t initial_size) : outputStream() { 237 buffer_length = initial_size; 238 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); 239 buffer_pos = 0; 240 buffer_fixed = false; 241 } 242 243 // useful for output to fixed chunks of memory, such as performance counters 244 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { 245 buffer_length = fixed_buffer_size; 246 buffer = fixed_buffer; 247 buffer_pos = 0; 248 buffer_fixed = true; 249 } 250 251 void stringStream::write(const char* s, size_t len) { 252 size_t write_len = len; // number of non-null bytes to write 253 size_t end = buffer_pos + len + 1; // position after write and final '\0' 254 if (end > buffer_length) { 255 if (buffer_fixed) { 256 // if buffer cannot resize, silently truncate 257 end = buffer_length; 258 write_len = end - buffer_pos - 1; // leave room for the final '\0' 259 } else { 260 // For small overruns, double the buffer. For larger ones, 261 // increase to the requested size. 262 if (end < buffer_length * 2) { 263 end = buffer_length * 2; 264 } 265 char* oldbuf = buffer; 266 buffer = NEW_RESOURCE_ARRAY(char, end); 267 strncpy(buffer, oldbuf, buffer_pos); 268 buffer_length = end; 269 } 270 } 271 // invariant: buffer is always null-terminated 272 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); 273 buffer[buffer_pos + write_len] = 0; 274 strncpy(buffer + buffer_pos, s, write_len); 275 buffer_pos += write_len; 276 277 // Note that the following does not depend on write_len. 278 // This means that position and count get updated 279 // even when overflow occurs. 280 update_position(s, len); 281 } 282 283 char* stringStream::as_string() { 284 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); 285 strncpy(copy, buffer, buffer_pos); 286 copy[buffer_pos] = 0; // terminating null 287 return copy; 288 } 289 290 stringStream::~stringStream() {} 291 292 xmlStream* xtty; 293 outputStream* tty; 294 outputStream* gclog_or_tty; 295 extern Mutex* tty_lock; 296 297 fileStream::fileStream(const char* file_name) { 298 _file = fopen(file_name, "w"); 299 _need_close = true; 300 } 301 302 void fileStream::write(const char* s, size_t len) { 303 if (_file != NULL) { 304 // Make an unused local variable to avoid warning from gcc 4.x compiler. 305 size_t count = fwrite(s, 1, len, _file); 306 } 307 update_position(s, len); 308 } 309 310 fileStream::~fileStream() { 311 if (_file != NULL) { 312 if (_need_close) fclose(_file); 313 _file = NULL; 314 } 315 } 316 317 void fileStream::flush() { 318 fflush(_file); 319 } 320 321 fdStream::fdStream(const char* file_name) { 322 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); 323 _need_close = true; 324 } 325 326 fdStream::~fdStream() { 327 if (_fd != -1) { 328 if (_need_close) close(_fd); 329 _fd = -1; 330 } 331 } 332 333 void fdStream::write(const char* s, size_t len) { 334 if (_fd != -1) { 335 // Make an unused local variable to avoid warning from gcc 4.x compiler. 336 size_t count = ::write(_fd, s, (int)len); 337 } 338 update_position(s, len); 339 } 340 341 defaultStream* defaultStream::instance = NULL; 342 int defaultStream::_output_fd = 1; 343 int defaultStream::_error_fd = 2; 344 FILE* defaultStream::_output_stream = stdout; 345 FILE* defaultStream::_error_stream = stderr; 346 347 #define LOG_MAJOR_VERSION 160 348 #define LOG_MINOR_VERSION 1 349 350 void defaultStream::init() { 351 _inited = true; 352 if (LogVMOutput || LogCompilation) { 353 init_log(); 354 } 355 } 356 357 bool defaultStream::has_log_file() { 358 // lazily create log file (at startup, LogVMOutput is false even 359 // if +LogVMOutput is used, because the flags haven't been parsed yet) 360 // For safer printing during fatal error handling, do not init logfile 361 // if a VM error has been reported. 362 if (!_inited && !is_error_reported()) init(); 363 return _log_file != NULL; 364 } 365 366 static const char* make_log_name(const char* log_name, const char* force_directory) { 367 const char* basename = log_name; 368 char file_sep = os::file_separator()[0]; 369 const char* cp; 370 for (cp = log_name; *cp != '\0'; cp++) { 371 if (*cp == '/' || *cp == file_sep) { 372 basename = cp+1; 373 } 374 } 375 const char* nametail = log_name; 376 377 // Compute buffer length 378 size_t buffer_length; 379 if (force_directory != NULL) { 380 buffer_length = strlen(force_directory) + strlen(os::file_separator()) + 381 strlen(basename) + 1; 382 } else { 383 buffer_length = strlen(log_name) + 1; 384 } 385 386 const char* star = strchr(basename, '*'); 387 int star_pos = (star == NULL) ? -1 : (star - nametail); 388 389 char pid[32]; 390 if (star_pos >= 0) { 391 jio_snprintf(pid, sizeof(pid), "%u", os::current_process_id()); 392 buffer_length += strlen(pid); 393 } 394 395 // Create big enough buffer. 396 char *buf = NEW_C_HEAP_ARRAY(char, buffer_length); 397 398 strcpy(buf, ""); 399 if (force_directory != NULL) { 400 strcat(buf, force_directory); 401 strcat(buf, os::file_separator()); 402 nametail = basename; // completely skip directory prefix 403 } 404 405 if (star_pos >= 0) { 406 // convert foo*bar.log to foo123bar.log 407 int buf_pos = (int) strlen(buf); 408 strncpy(&buf[buf_pos], nametail, star_pos); 409 strcpy(&buf[buf_pos + star_pos], pid); 410 nametail += star_pos + 1; // skip prefix and star 411 } 412 413 strcat(buf, nametail); // append rest of name, or all of name 414 return buf; 415 } 416 417 void defaultStream::init_log() { 418 // %%% Need a MutexLocker? 419 const char* log_name = LogFile != NULL ? LogFile : "hotspot.log"; 420 const char* try_name = make_log_name(log_name, NULL); 421 fileStream* file = new(ResourceObj::C_HEAP) fileStream(try_name); 422 if (!file->is_open()) { 423 // Try again to open the file. 424 char warnbuf[O_BUFLEN*2]; 425 jio_snprintf(warnbuf, sizeof(warnbuf), 426 "Warning: Cannot open log file: %s\n", try_name); 427 // Note: This feature is for maintainer use only. No need for L10N. 428 jio_print(warnbuf); 429 FREE_C_HEAP_ARRAY(char, try_name); 430 try_name = make_log_name("hs_pid*.log", os::get_temp_directory()); 431 jio_snprintf(warnbuf, sizeof(warnbuf), 432 "Warning: Forcing option -XX:LogFile=%s\n", try_name); 433 jio_print(warnbuf); 434 delete file; 435 file = new(ResourceObj::C_HEAP) fileStream(try_name); 436 FREE_C_HEAP_ARRAY(char, try_name); 437 } 438 if (file->is_open()) { 439 _log_file = file; 440 xmlStream* xs = new(ResourceObj::C_HEAP) xmlStream(file); 441 _outer_xmlStream = xs; 442 if (this == tty) xtty = xs; 443 // Write XML header. 444 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>"); 445 // (For now, don't bother to issue a DTD for this private format.) 446 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); 447 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if 448 // we ever get round to introduce that method on the os class 449 xs->head("hotspot_log version='%d %d'" 450 " process='%d' time_ms='"INT64_FORMAT"'", 451 LOG_MAJOR_VERSION, LOG_MINOR_VERSION, 452 os::current_process_id(), time_ms); 453 // Write VM version header immediately. 454 xs->head("vm_version"); 455 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); 456 xs->tail("name"); 457 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); 458 xs->tail("release"); 459 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); 460 xs->tail("info"); 461 xs->tail("vm_version"); 462 // Record information about the command-line invocation. 463 xs->head("vm_arguments"); // Cf. Arguments::print_on() 464 if (Arguments::num_jvm_flags() > 0) { 465 xs->head("flags"); 466 Arguments::print_jvm_flags_on(xs->text()); 467 xs->tail("flags"); 468 } 469 if (Arguments::num_jvm_args() > 0) { 470 xs->head("args"); 471 Arguments::print_jvm_args_on(xs->text()); 472 xs->tail("args"); 473 } 474 if (Arguments::java_command() != NULL) { 475 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); 476 xs->tail("command"); 477 } 478 if (Arguments::sun_java_launcher() != NULL) { 479 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); 480 xs->tail("launcher"); 481 } 482 if (Arguments::system_properties() != NULL) { 483 xs->head("properties"); 484 // Print it as a java-style property list. 485 // System properties don't generally contain newlines, so don't bother with unparsing. 486 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { 487 xs->text()->print_cr("%s=%s", p->key(), p->value()); 488 } 489 xs->tail("properties"); 490 } 491 xs->tail("vm_arguments"); 492 // tty output per se is grouped under the <tty>...</tty> element. 493 xs->head("tty"); 494 // All further non-markup text gets copied to the tty: 495 xs->_text = this; // requires friend declaration! 496 } else { 497 delete(file); 498 // and leave xtty as NULL 499 LogVMOutput = false; 500 DisplayVMOutput = true; 501 LogCompilation = false; 502 } 503 } 504 505 // finish_log() is called during normal VM shutdown. finish_log_on_error() is 506 // called by ostream_abort() after a fatal error. 507 // 508 void defaultStream::finish_log() { 509 xmlStream* xs = _outer_xmlStream; 510 xs->done("tty"); 511 512 // Other log forks are appended here, at the End of Time: 513 CompileLog::finish_log(xs->out()); // write compile logging, if any, now 514 515 xs->done("hotspot_log"); 516 xs->flush(); 517 518 fileStream* file = _log_file; 519 _log_file = NULL; 520 521 delete _outer_xmlStream; 522 _outer_xmlStream = NULL; 523 524 file->flush(); 525 delete file; 526 } 527 528 void defaultStream::finish_log_on_error(char *buf, int buflen) { 529 xmlStream* xs = _outer_xmlStream; 530 531 if (xs && xs->out()) { 532 533 xs->done_raw("tty"); 534 535 // Other log forks are appended here, at the End of Time: 536 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now 537 538 xs->done_raw("hotspot_log"); 539 xs->flush(); 540 541 fileStream* file = _log_file; 542 _log_file = NULL; 543 _outer_xmlStream = NULL; 544 545 if (file) { 546 file->flush(); 547 548 // Can't delete or close the file because delete and fclose aren't 549 // async-safe. We are about to die, so leave it to the kernel. 550 // delete file; 551 } 552 } 553 } 554 555 intx defaultStream::hold(intx writer_id) { 556 bool has_log = has_log_file(); // check before locking 557 if (// impossible, but who knows? 558 writer_id == NO_WRITER || 559 560 // bootstrap problem 561 tty_lock == NULL || 562 563 // can't grab a lock or call Thread::current() if TLS isn't initialized 564 ThreadLocalStorage::thread() == NULL || 565 566 // developer hook 567 !SerializeVMOutput || 568 569 // VM already unhealthy 570 is_error_reported() || 571 572 // safepoint == global lock (for VM only) 573 (SafepointSynchronize::is_synchronizing() && 574 Thread::current()->is_VM_thread()) 575 ) { 576 // do not attempt to lock unless we know the thread and the VM is healthy 577 return NO_WRITER; 578 } 579 if (_writer == writer_id) { 580 // already held, no need to re-grab the lock 581 return NO_WRITER; 582 } 583 tty_lock->lock_without_safepoint_check(); 584 // got the lock 585 if (writer_id != _last_writer) { 586 if (has_log) { 587 _log_file->bol(); 588 // output a hint where this output is coming from: 589 _log_file->print_cr("<writer thread='"INTX_FORMAT"'/>", writer_id); 590 } 591 _last_writer = writer_id; 592 } 593 _writer = writer_id; 594 return writer_id; 595 } 596 597 void defaultStream::release(intx holder) { 598 if (holder == NO_WRITER) { 599 // nothing to release: either a recursive lock, or we scribbled (too bad) 600 return; 601 } 602 if (_writer != holder) { 603 return; // already unlocked, perhaps via break_tty_lock_for_safepoint 604 } 605 _writer = NO_WRITER; 606 tty_lock->unlock(); 607 } 608 609 610 // Yuck: jio_print does not accept char*/len. 611 static void call_jio_print(const char* s, size_t len) { 612 char buffer[O_BUFLEN+100]; 613 if (len > sizeof(buffer)-1) { 614 warning("increase O_BUFLEN in ostream.cpp -- output truncated"); 615 len = sizeof(buffer)-1; 616 } 617 strncpy(buffer, s, len); 618 buffer[len] = '\0'; 619 jio_print(buffer); 620 } 621 622 623 void defaultStream::write(const char* s, size_t len) { 624 intx thread_id = os::current_thread_id(); 625 intx holder = hold(thread_id); 626 627 if (DisplayVMOutput && 628 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { 629 // print to output stream. It can be redirected by a vfprintf hook 630 if (s[len] == '\0') { 631 jio_print(s); 632 } else { 633 call_jio_print(s, len); 634 } 635 } 636 637 // print to log file 638 if (has_log_file()) { 639 int nl0 = _newlines; 640 xmlTextStream::write(s, len); 641 // flush the log file too, if there were any newlines 642 if (nl0 != _newlines){ 643 flush(); 644 } 645 } else { 646 update_position(s, len); 647 } 648 649 release(holder); 650 } 651 652 intx ttyLocker::hold_tty() { 653 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; 654 intx thread_id = os::current_thread_id(); 655 return defaultStream::instance->hold(thread_id); 656 } 657 658 void ttyLocker::release_tty(intx holder) { 659 if (holder == defaultStream::NO_WRITER) return; 660 defaultStream::instance->release(holder); 661 } 662 663 void ttyLocker::break_tty_lock_for_safepoint(intx holder) { 664 if (defaultStream::instance != NULL && 665 defaultStream::instance->writer() == holder) { 666 if (xtty != NULL) { 667 xtty->print_cr("<!-- safepoint while printing -->"); 668 } 669 defaultStream::instance->release(holder); 670 } 671 // (else there was no lock to break) 672 } 673 674 void ostream_init() { 675 if (defaultStream::instance == NULL) { 676 defaultStream::instance = new(ResourceObj::C_HEAP) defaultStream(); 677 tty = defaultStream::instance; 678 679 // We want to ensure that time stamps in GC logs consider time 0 680 // the time when the JVM is initialized, not the first time we ask 681 // for a time stamp. So, here, we explicitly update the time stamp 682 // of tty. 683 tty->time_stamp().update_to(1); 684 } 685 } 686 687 void ostream_init_log() { 688 // For -Xloggc:<file> option - called in runtime/thread.cpp 689 // Note : this must be called AFTER ostream_init() 690 691 gclog_or_tty = tty; // default to tty 692 if (Arguments::gc_log_filename() != NULL) { 693 fileStream * gclog = new(ResourceObj::C_HEAP) 694 fileStream(Arguments::gc_log_filename()); 695 if (gclog->is_open()) { 696 // now we update the time stamp of the GC log to be synced up 697 // with tty. 698 gclog->time_stamp().update_to(tty->time_stamp().ticks()); 699 gclog_or_tty = gclog; 700 } 701 } 702 703 // If we haven't lazily initialized the logfile yet, do it now, 704 // to avoid the possibility of lazy initialization during a VM 705 // crash, which can affect the stability of the fatal error handler. 706 defaultStream::instance->has_log_file(); 707 } 708 709 // ostream_exit() is called during normal VM exit to finish log files, flush 710 // output and free resource. 711 void ostream_exit() { 712 static bool ostream_exit_called = false; 713 if (ostream_exit_called) return; 714 ostream_exit_called = true; 715 if (gclog_or_tty != tty) { 716 delete gclog_or_tty; 717 } 718 { 719 // we temporaly disable PrintMallocFree here 720 // as otherwise it'll lead to using of almost deleted 721 // tty or defaultStream::instance in logging facility 722 // of HeapFree(), see 6391258 723 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) 724 if (tty != defaultStream::instance) { 725 delete tty; 726 } 727 if (defaultStream::instance != NULL) { 728 delete defaultStream::instance; 729 } 730 } 731 tty = NULL; 732 xtty = NULL; 733 gclog_or_tty = NULL; 734 defaultStream::instance = NULL; 735 } 736 737 // ostream_abort() is called by os::abort() when VM is about to die. 738 void ostream_abort() { 739 // Here we can't delete gclog_or_tty and tty, just flush their output 740 if (gclog_or_tty) gclog_or_tty->flush(); 741 if (tty) tty->flush(); 742 743 if (defaultStream::instance != NULL) { 744 static char buf[4096]; 745 defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); 746 } 747 } 748 749 staticBufferStream::staticBufferStream(char* buffer, size_t buflen, 750 outputStream *outer_stream) { 751 _buffer = buffer; 752 _buflen = buflen; 753 _outer_stream = outer_stream; 754 } 755 756 void staticBufferStream::write(const char* c, size_t len) { 757 _outer_stream->print_raw(c, (int)len); 758 } 759 760 void staticBufferStream::flush() { 761 _outer_stream->flush(); 762 } 763 764 void staticBufferStream::print(const char* format, ...) { 765 va_list ap; 766 va_start(ap, format); 767 size_t len; 768 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); 769 write(str, len); 770 va_end(ap); 771 } 772 773 void staticBufferStream::print_cr(const char* format, ...) { 774 va_list ap; 775 va_start(ap, format); 776 size_t len; 777 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); 778 write(str, len); 779 va_end(ap); 780 } 781 782 void staticBufferStream::vprint(const char *format, va_list argptr) { 783 size_t len; 784 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); 785 write(str, len); 786 } 787 788 void staticBufferStream::vprint_cr(const char* format, va_list argptr) { 789 size_t len; 790 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); 791 write(str, len); 792 } 793 794 bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { 795 buffer_length = initial_size; 796 buffer = NEW_C_HEAP_ARRAY(char, buffer_length); 797 buffer_pos = 0; 798 buffer_fixed = false; 799 buffer_max = bufmax; 800 } 801 802 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { 803 buffer_length = fixed_buffer_size; 804 buffer = fixed_buffer; 805 buffer_pos = 0; 806 buffer_fixed = true; 807 buffer_max = bufmax; 808 } 809 810 void bufferedStream::write(const char* s, size_t len) { 811 812 if(buffer_pos + len > buffer_max) { 813 flush(); 814 } 815 816 size_t end = buffer_pos + len; 817 if (end >= buffer_length) { 818 if (buffer_fixed) { 819 // if buffer cannot resize, silently truncate 820 len = buffer_length - buffer_pos - 1; 821 } else { 822 // For small overruns, double the buffer. For larger ones, 823 // increase to the requested size. 824 if (end < buffer_length * 2) { 825 end = buffer_length * 2; 826 } 827 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end); 828 buffer_length = end; 829 } 830 } 831 memcpy(buffer + buffer_pos, s, len); 832 buffer_pos += len; 833 update_position(s, len); 834 } 835 836 char* bufferedStream::as_string() { 837 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); 838 strncpy(copy, buffer, buffer_pos); 839 copy[buffer_pos] = 0; // terminating null 840 return copy; 841 } 842 843 bufferedStream::~bufferedStream() { 844 if (!buffer_fixed) { 845 FREE_C_HEAP_ARRAY(char, buffer); 846 } 847 } 848 849 #ifndef PRODUCT 850 851 #if defined(SOLARIS) || defined(LINUX) 852 #include <sys/types.h> 853 #include <sys/socket.h> 854 #include <netinet/in.h> 855 #include <arpa/inet.h> 856 #endif 857 858 // Network access 859 networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { 860 861 _socket = -1; 862 863 hpi::initialize_socket_library(); 864 865 int result = hpi::socket(AF_INET, SOCK_STREAM, 0); 866 if (result <= 0) { 867 assert(false, "Socket could not be created!"); 868 } else { 869 _socket = result; 870 } 871 } 872 873 int networkStream::read(char *buf, size_t len) { 874 return hpi::recv(_socket, buf, (int)len, 0); 875 } 876 877 void networkStream::flush() { 878 if (size() != 0) { 879 int result = hpi::raw_send(_socket, (char *)base(), (int)size(), 0); 880 assert(result != -1, "connection error"); 881 assert(result == (int)size(), "didn't send enough data"); 882 } 883 reset(); 884 } 885 886 networkStream::~networkStream() { 887 close(); 888 } 889 890 void networkStream::close() { 891 if (_socket != -1) { 892 flush(); 893 hpi::socket_close(_socket); 894 _socket = -1; 895 } 896 } 897 898 bool networkStream::connect(const char *ip, short port) { 899 900 struct sockaddr_in server; 901 server.sin_family = AF_INET; 902 server.sin_port = htons(port); 903 904 server.sin_addr.s_addr = inet_addr(ip); 905 if (server.sin_addr.s_addr == (uint32_t)-1) { 906 #ifdef _WINDOWS 907 struct hostent* host = hpi::get_host_by_name((char*)ip); 908 #else 909 struct hostent* host = gethostbyname(ip); 910 #endif 911 if (host != NULL) { 912 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); 913 } else { 914 return false; 915 } 916 } 917 918 919 int result = hpi::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); 920 return (result >= 0); 921 } 922 923 #endif