Mercurial > hg > graal-jvmci-8
comparison src/share/vm/utilities/ostream.cpp @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
---|---|
date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | 092ea87cc974 c7c777385a15 |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:a61af66fc99e |
---|---|
1 /* | |
2 * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any 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 _position += 8; | |
56 _precount -= 7; // invariant: _precount + _position == total count | |
57 } else { | |
58 _position += 1; | |
59 } | |
60 } | |
61 } | |
62 | |
63 // Execute a vsprintf, using the given buffer if necessary. | |
64 // Return a pointer to the formatted string. | |
65 const char* outputStream::do_vsnprintf(char* buffer, size_t buflen, | |
66 const char* format, va_list ap, | |
67 bool add_cr, | |
68 size_t& result_len) { | |
69 const char* result; | |
70 if (add_cr) buflen--; | |
71 if (!strchr(format, '%')) { | |
72 // constant format string | |
73 result = format; | |
74 result_len = strlen(result); | |
75 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
76 } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') { | |
77 // trivial copy-through format string | |
78 result = va_arg(ap, const char*); | |
79 result_len = strlen(result); | |
80 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
81 } else if (vsnprintf(buffer, buflen, format, ap) >= 0) { | |
82 result = buffer; | |
83 result_len = strlen(result); | |
84 } else { | |
85 DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");) | |
86 result = buffer; | |
87 result_len = buflen - 1; | |
88 buffer[result_len] = 0; | |
89 } | |
90 if (add_cr) { | |
91 if (result != buffer) { | |
92 strncpy(buffer, result, buflen); | |
93 result = buffer; | |
94 } | |
95 buffer[result_len++] = '\n'; | |
96 buffer[result_len] = 0; | |
97 } | |
98 return result; | |
99 } | |
100 | |
101 void outputStream::print(const char* format, ...) { | |
102 char buffer[O_BUFLEN]; | |
103 va_list ap; | |
104 va_start(ap, format); | |
105 size_t len; | |
106 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len); | |
107 write(str, len); | |
108 va_end(ap); | |
109 } | |
110 | |
111 void outputStream::print_cr(const char* format, ...) { | |
112 char buffer[O_BUFLEN]; | |
113 va_list ap; | |
114 va_start(ap, format); | |
115 size_t len; | |
116 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len); | |
117 write(str, len); | |
118 va_end(ap); | |
119 } | |
120 | |
121 void outputStream::vprint(const char *format, va_list argptr) { | |
122 char buffer[O_BUFLEN]; | |
123 size_t len; | |
124 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len); | |
125 write(str, len); | |
126 } | |
127 | |
128 void outputStream::vprint_cr(const char* format, va_list argptr) { | |
129 char buffer[O_BUFLEN]; | |
130 size_t len; | |
131 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); | |
132 write(str, len); | |
133 } | |
134 | |
135 void outputStream::fill_to(int col) { | |
136 while (position() < col) sp(); | |
137 } | |
138 | |
139 void outputStream::put(char ch) { | |
140 assert(ch != 0, "please fix call site"); | |
141 char buf[] = { ch, '\0' }; | |
142 write(buf, 1); | |
143 } | |
144 | |
145 void outputStream::sp() { | |
146 this->write(" ", 1); | |
147 } | |
148 | |
149 void outputStream::cr() { | |
150 this->write("\n", 1); | |
151 } | |
152 | |
153 void outputStream::stamp() { | |
154 if (! _stamp.is_updated()) { | |
155 _stamp.update(); // start at 0 on first call to stamp() | |
156 } | |
157 | |
158 // outputStream::stamp() may get called by ostream_abort(), use snprintf | |
159 // to avoid allocating large stack buffer in print(). | |
160 char buf[40]; | |
161 jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds()); | |
162 print_raw(buf); | |
163 } | |
164 | |
165 void outputStream::date_stamp(bool guard, | |
166 const char* prefix, | |
167 const char* suffix) { | |
168 if (!guard) { | |
169 return; | |
170 } | |
171 print_raw(prefix); | |
172 static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz"; | |
173 static const int buffer_length = 32; | |
174 char buffer[buffer_length]; | |
175 const char* iso8601_result = os::iso8601_time(buffer, buffer_length); | |
176 if (iso8601_result != NULL) { | |
177 print_raw(buffer); | |
178 } else { | |
179 print_raw(error_time); | |
180 } | |
181 print_raw(suffix); | |
182 return; | |
183 } | |
184 | |
185 void outputStream::indent() { | |
186 while (_position < _indentation) sp(); | |
187 } | |
188 | |
189 void outputStream::print_jlong(jlong value) { | |
190 // N.B. Same as INT64_FORMAT | |
191 print(os::jlong_format_specifier(), value); | |
192 } | |
193 | |
194 void outputStream::print_julong(julong value) { | |
195 // N.B. Same as UINT64_FORMAT | |
196 print(os::julong_format_specifier(), value); | |
197 } | |
198 | |
199 stringStream::stringStream(size_t initial_size) : outputStream() { | |
200 buffer_length = initial_size; | |
201 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); | |
202 buffer_pos = 0; | |
203 buffer_fixed = false; | |
204 } | |
205 | |
206 // useful for output to fixed chunks of memory, such as performance counters | |
207 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { | |
208 buffer_length = fixed_buffer_size; | |
209 buffer = fixed_buffer; | |
210 buffer_pos = 0; | |
211 buffer_fixed = true; | |
212 } | |
213 | |
214 void stringStream::write(const char* s, size_t len) { | |
215 size_t write_len = len; // number of non-null bytes to write | |
216 size_t end = buffer_pos + len + 1; // position after write and final '\0' | |
217 if (end > buffer_length) { | |
218 if (buffer_fixed) { | |
219 // if buffer cannot resize, silently truncate | |
220 end = buffer_length; | |
221 write_len = end - buffer_pos - 1; // leave room for the final '\0' | |
222 } else { | |
223 // For small overruns, double the buffer. For larger ones, | |
224 // increase to the requested size. | |
225 if (end < buffer_length * 2) { | |
226 end = buffer_length * 2; | |
227 } | |
228 char* oldbuf = buffer; | |
229 buffer = NEW_RESOURCE_ARRAY(char, end); | |
230 strncpy(buffer, oldbuf, buffer_pos); | |
231 buffer_length = end; | |
232 } | |
233 } | |
234 // invariant: buffer is always null-terminated | |
235 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); | |
236 buffer[buffer_pos + write_len] = 0; | |
237 strncpy(buffer + buffer_pos, s, write_len); | |
238 buffer_pos += write_len; | |
239 | |
240 // Note that the following does not depend on write_len. | |
241 // This means that position and count get updated | |
242 // even when overflow occurs. | |
243 update_position(s, len); | |
244 } | |
245 | |
246 char* stringStream::as_string() { | |
247 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
248 strncpy(copy, buffer, buffer_pos); | |
249 copy[buffer_pos] = 0; // terminating null | |
250 return copy; | |
251 } | |
252 | |
253 stringStream::~stringStream() {} | |
254 | |
255 xmlStream* xtty; | |
256 outputStream* tty; | |
257 outputStream* gclog_or_tty; | |
258 extern Mutex* tty_lock; | |
259 | |
260 fileStream::fileStream(const char* file_name) { | |
261 _file = fopen(file_name, "w"); | |
262 _need_close = true; | |
263 } | |
264 | |
265 void fileStream::write(const char* s, size_t len) { | |
266 if (_file != NULL) fwrite(s, 1, len, _file); | |
267 update_position(s, len); | |
268 } | |
269 | |
270 fileStream::~fileStream() { | |
271 if (_file != NULL) { | |
272 if (_need_close) fclose(_file); | |
273 _file = NULL; | |
274 } | |
275 } | |
276 | |
277 void fileStream::flush() { | |
278 fflush(_file); | |
279 } | |
280 | |
281 fdStream::fdStream(const char* file_name) { | |
282 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
283 _need_close = true; | |
284 } | |
285 | |
286 fdStream::~fdStream() { | |
287 if (_fd != -1) { | |
288 if (_need_close) close(_fd); | |
289 _fd = -1; | |
290 } | |
291 } | |
292 | |
293 void fdStream::write(const char* s, size_t len) { | |
294 if (_fd != -1) ::write(_fd, s, (int)len); | |
295 update_position(s, len); | |
296 } | |
297 | |
298 defaultStream* defaultStream::instance = NULL; | |
299 int defaultStream::_output_fd = 1; | |
300 int defaultStream::_error_fd = 2; | |
301 FILE* defaultStream::_output_stream = stdout; | |
302 FILE* defaultStream::_error_stream = stderr; | |
303 | |
304 #define LOG_MAJOR_VERSION 160 | |
305 #define LOG_MINOR_VERSION 1 | |
306 | |
307 void defaultStream::init() { | |
308 _inited = true; | |
309 if (LogVMOutput || LogCompilation) { | |
310 init_log(); | |
311 } | |
312 } | |
313 | |
314 bool defaultStream::has_log_file() { | |
315 // lazily create log file (at startup, LogVMOutput is false even | |
316 // if +LogVMOutput is used, because the flags haven't been parsed yet) | |
317 // For safer printing during fatal error handling, do not init logfile | |
318 // if a VM error has been reported. | |
319 if (!_inited && !is_error_reported()) init(); | |
320 return _log_file != NULL; | |
321 } | |
322 | |
323 static const char* make_log_name(const char* log_name, const char* force_directory, char* buf) { | |
324 const char* basename = log_name; | |
325 char file_sep = os::file_separator()[0]; | |
326 const char* cp; | |
327 for (cp = log_name; *cp != '\0'; cp++) { | |
328 if (*cp == '/' || *cp == file_sep) { | |
329 basename = cp+1; | |
330 } | |
331 } | |
332 const char* nametail = log_name; | |
333 | |
334 strcpy(buf, ""); | |
335 if (force_directory != NULL) { | |
336 strcat(buf, force_directory); | |
337 strcat(buf, os::file_separator()); | |
338 nametail = basename; // completely skip directory prefix | |
339 } | |
340 | |
341 const char* star = strchr(basename, '*'); | |
342 int star_pos = (star == NULL) ? -1 : (star - nametail); | |
343 | |
344 if (star_pos >= 0) { | |
345 // convert foo*bar.log to foo123bar.log | |
346 int buf_pos = (int) strlen(buf); | |
347 strncpy(&buf[buf_pos], nametail, star_pos); | |
348 sprintf(&buf[buf_pos + star_pos], "%u", os::current_process_id()); | |
349 nametail += star_pos + 1; // skip prefix and star | |
350 } | |
351 | |
352 strcat(buf, nametail); // append rest of name, or all of name | |
353 return buf; | |
354 } | |
355 | |
356 void defaultStream::init_log() { | |
357 // %%% Need a MutexLocker? | |
358 const char* log_name = LogFile != NULL ? LogFile : "hotspot.log"; | |
359 char buf[O_BUFLEN*2]; | |
360 const char* try_name = make_log_name(log_name, NULL, buf); | |
361 fileStream* file = new(ResourceObj::C_HEAP) fileStream(try_name); | |
362 if (!file->is_open()) { | |
363 // Try again to open the file. | |
364 char warnbuf[O_BUFLEN*2]; | |
365 sprintf(warnbuf, "Warning: Cannot open log file: %s\n", try_name); | |
366 // Note: This feature is for maintainer use only. No need for L10N. | |
367 jio_print(warnbuf); | |
368 try_name = make_log_name("hs_pid*.log", os::get_temp_directory(), buf); | |
369 sprintf(warnbuf, "Warning: Forcing option -XX:LogFile=%s\n", try_name); | |
370 jio_print(warnbuf); | |
371 delete file; | |
372 file = new(ResourceObj::C_HEAP) fileStream(try_name); | |
373 } | |
374 if (file->is_open()) { | |
375 _log_file = file; | |
376 xmlStream* xs = new(ResourceObj::C_HEAP) xmlStream(file); | |
377 _outer_xmlStream = xs; | |
378 if (this == tty) xtty = xs; | |
379 // Write XML header. | |
380 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>"); | |
381 // (For now, don't bother to issue a DTD for this private format.) | |
382 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); | |
383 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if | |
384 // we ever get round to introduce that method on the os class | |
385 xs->head("hotspot_log version='%d %d'" | |
386 " process='%d' time_ms='"INT64_FORMAT"'", | |
387 LOG_MAJOR_VERSION, LOG_MINOR_VERSION, | |
388 os::current_process_id(), time_ms); | |
389 // Write VM version header immediately. | |
390 xs->head("vm_version"); | |
391 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); | |
392 xs->tail("name"); | |
393 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); | |
394 xs->tail("release"); | |
395 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); | |
396 xs->tail("info"); | |
397 xs->tail("vm_version"); | |
398 // Record information about the command-line invocation. | |
399 xs->head("vm_arguments"); // Cf. Arguments::print_on() | |
400 if (Arguments::num_jvm_flags() > 0) { | |
401 xs->head("flags"); | |
402 Arguments::print_jvm_flags_on(xs->text()); | |
403 xs->tail("flags"); | |
404 } | |
405 if (Arguments::num_jvm_args() > 0) { | |
406 xs->head("args"); | |
407 Arguments::print_jvm_args_on(xs->text()); | |
408 xs->tail("args"); | |
409 } | |
410 if (Arguments::java_command() != NULL) { | |
411 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); | |
412 xs->tail("command"); | |
413 } | |
414 if (Arguments::sun_java_launcher() != NULL) { | |
415 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); | |
416 xs->tail("launcher"); | |
417 } | |
418 if (Arguments::system_properties() != NULL) { | |
419 xs->head("properties"); | |
420 // Print it as a java-style property list. | |
421 // System properties don't generally contain newlines, so don't bother with unparsing. | |
422 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
423 xs->text()->print_cr("%s=%s", p->key(), p->value()); | |
424 } | |
425 xs->tail("properties"); | |
426 } | |
427 xs->tail("vm_arguments"); | |
428 // tty output per se is grouped under the <tty>...</tty> element. | |
429 xs->head("tty"); | |
430 // All further non-markup text gets copied to the tty: | |
431 xs->_text = this; // requires friend declaration! | |
432 } else { | |
433 delete(file); | |
434 // and leave xtty as NULL | |
435 LogVMOutput = false; | |
436 DisplayVMOutput = true; | |
437 LogCompilation = false; | |
438 } | |
439 } | |
440 | |
441 // finish_log() is called during normal VM shutdown. finish_log_on_error() is | |
442 // called by ostream_abort() after a fatal error. | |
443 // | |
444 void defaultStream::finish_log() { | |
445 xmlStream* xs = _outer_xmlStream; | |
446 xs->done("tty"); | |
447 | |
448 // Other log forks are appended here, at the End of Time: | |
449 CompileLog::finish_log(xs->out()); // write compile logging, if any, now | |
450 | |
451 xs->done("hotspot_log"); | |
452 xs->flush(); | |
453 | |
454 fileStream* file = _log_file; | |
455 _log_file = NULL; | |
456 | |
457 delete _outer_xmlStream; | |
458 _outer_xmlStream = NULL; | |
459 | |
460 file->flush(); | |
461 delete file; | |
462 } | |
463 | |
464 void defaultStream::finish_log_on_error(char *buf, int buflen) { | |
465 xmlStream* xs = _outer_xmlStream; | |
466 | |
467 if (xs && xs->out()) { | |
468 | |
469 xs->done_raw("tty"); | |
470 | |
471 // Other log forks are appended here, at the End of Time: | |
472 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now | |
473 | |
474 xs->done_raw("hotspot_log"); | |
475 xs->flush(); | |
476 | |
477 fileStream* file = _log_file; | |
478 _log_file = NULL; | |
479 _outer_xmlStream = NULL; | |
480 | |
481 if (file) { | |
482 file->flush(); | |
483 | |
484 // Can't delete or close the file because delete and fclose aren't | |
485 // async-safe. We are about to die, so leave it to the kernel. | |
486 // delete file; | |
487 } | |
488 } | |
489 } | |
490 | |
491 intx defaultStream::hold(intx writer_id) { | |
492 bool has_log = has_log_file(); // check before locking | |
493 if (// impossible, but who knows? | |
494 writer_id == NO_WRITER || | |
495 | |
496 // bootstrap problem | |
497 tty_lock == NULL || | |
498 | |
499 // can't grab a lock or call Thread::current() if TLS isn't initialized | |
500 ThreadLocalStorage::thread() == NULL || | |
501 | |
502 // developer hook | |
503 !SerializeVMOutput || | |
504 | |
505 // VM already unhealthy | |
506 is_error_reported() || | |
507 | |
508 // safepoint == global lock (for VM only) | |
509 (SafepointSynchronize::is_synchronizing() && | |
510 Thread::current()->is_VM_thread()) | |
511 ) { | |
512 // do not attempt to lock unless we know the thread and the VM is healthy | |
513 return NO_WRITER; | |
514 } | |
515 if (_writer == writer_id) { | |
516 // already held, no need to re-grab the lock | |
517 return NO_WRITER; | |
518 } | |
519 tty_lock->lock_without_safepoint_check(); | |
520 // got the lock | |
521 if (writer_id != _last_writer) { | |
522 if (has_log) { | |
523 _log_file->bol(); | |
524 // output a hint where this output is coming from: | |
525 _log_file->print_cr("<writer thread='"INTX_FORMAT"'/>", writer_id); | |
526 } | |
527 _last_writer = writer_id; | |
528 } | |
529 _writer = writer_id; | |
530 return writer_id; | |
531 } | |
532 | |
533 void defaultStream::release(intx holder) { | |
534 if (holder == NO_WRITER) { | |
535 // nothing to release: either a recursive lock, or we scribbled (too bad) | |
536 return; | |
537 } | |
538 if (_writer != holder) { | |
539 return; // already unlocked, perhaps via break_tty_lock_for_safepoint | |
540 } | |
541 _writer = NO_WRITER; | |
542 tty_lock->unlock(); | |
543 } | |
544 | |
545 | |
546 // Yuck: jio_print does not accept char*/len. | |
547 static void call_jio_print(const char* s, size_t len) { | |
548 char buffer[O_BUFLEN+100]; | |
549 if (len > sizeof(buffer)-1) { | |
550 warning("increase O_BUFLEN in ostream.cpp -- output truncated"); | |
551 len = sizeof(buffer)-1; | |
552 } | |
553 strncpy(buffer, s, len); | |
554 buffer[len] = '\0'; | |
555 jio_print(buffer); | |
556 } | |
557 | |
558 | |
559 void defaultStream::write(const char* s, size_t len) { | |
560 intx thread_id = os::current_thread_id(); | |
561 intx holder = hold(thread_id); | |
562 | |
563 if (DisplayVMOutput && | |
564 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { | |
565 // print to output stream. It can be redirected by a vfprintf hook | |
566 if (s[len] == '\0') { | |
567 jio_print(s); | |
568 } else { | |
569 call_jio_print(s, len); | |
570 } | |
571 } | |
572 | |
573 // print to log file | |
574 if (has_log_file()) { | |
575 int nl0 = _newlines; | |
576 xmlTextStream::write(s, len); | |
577 // flush the log file too, if there were any newlines | |
578 if (nl0 != _newlines){ | |
579 flush(); | |
580 } | |
581 } else { | |
582 update_position(s, len); | |
583 } | |
584 | |
585 release(holder); | |
586 } | |
587 | |
588 intx ttyLocker::hold_tty() { | |
589 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; | |
590 intx thread_id = os::current_thread_id(); | |
591 return defaultStream::instance->hold(thread_id); | |
592 } | |
593 | |
594 void ttyLocker::release_tty(intx holder) { | |
595 if (holder == defaultStream::NO_WRITER) return; | |
596 defaultStream::instance->release(holder); | |
597 } | |
598 | |
599 void ttyLocker::break_tty_lock_for_safepoint(intx holder) { | |
600 if (defaultStream::instance != NULL && | |
601 defaultStream::instance->writer() == holder) { | |
602 if (xtty != NULL) { | |
603 xtty->print_cr("<!-- safepoint while printing -->"); | |
604 } | |
605 defaultStream::instance->release(holder); | |
606 } | |
607 // (else there was no lock to break) | |
608 } | |
609 | |
610 void ostream_init() { | |
611 if (defaultStream::instance == NULL) { | |
612 defaultStream::instance = new(ResourceObj::C_HEAP) defaultStream(); | |
613 tty = defaultStream::instance; | |
614 | |
615 // We want to ensure that time stamps in GC logs consider time 0 | |
616 // the time when the JVM is initialized, not the first time we ask | |
617 // for a time stamp. So, here, we explicitly update the time stamp | |
618 // of tty. | |
619 tty->time_stamp().update_to(1); | |
620 } | |
621 } | |
622 | |
623 void ostream_init_log() { | |
624 // For -Xloggc:<file> option - called in runtime/thread.cpp | |
625 // Note : this must be called AFTER ostream_init() | |
626 | |
627 gclog_or_tty = tty; // default to tty | |
628 if (Arguments::gc_log_filename() != NULL) { | |
629 fileStream * gclog = new(ResourceObj::C_HEAP) | |
630 fileStream(Arguments::gc_log_filename()); | |
631 if (gclog->is_open()) { | |
632 // now we update the time stamp of the GC log to be synced up | |
633 // with tty. | |
634 gclog->time_stamp().update_to(tty->time_stamp().ticks()); | |
635 gclog_or_tty = gclog; | |
636 } | |
637 } | |
638 | |
639 // If we haven't lazily initialized the logfile yet, do it now, | |
640 // to avoid the possibility of lazy initialization during a VM | |
641 // crash, which can affect the stability of the fatal error handler. | |
642 defaultStream::instance->has_log_file(); | |
643 } | |
644 | |
645 // ostream_exit() is called during normal VM exit to finish log files, flush | |
646 // output and free resource. | |
647 void ostream_exit() { | |
648 static bool ostream_exit_called = false; | |
649 if (ostream_exit_called) return; | |
650 ostream_exit_called = true; | |
651 if (gclog_or_tty != tty) { | |
652 delete gclog_or_tty; | |
653 } | |
654 { | |
655 // we temporaly disable PrintMallocFree here | |
656 // as otherwise it'll lead to using of almost deleted | |
657 // tty or defaultStream::instance in logging facility | |
658 // of HeapFree(), see 6391258 | |
659 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) | |
660 if (tty != defaultStream::instance) { | |
661 delete tty; | |
662 } | |
663 if (defaultStream::instance != NULL) { | |
664 delete defaultStream::instance; | |
665 } | |
666 } | |
667 tty = NULL; | |
668 xtty = NULL; | |
669 gclog_or_tty = NULL; | |
670 defaultStream::instance = NULL; | |
671 } | |
672 | |
673 // ostream_abort() is called by os::abort() when VM is about to die. | |
674 void ostream_abort() { | |
675 // Here we can't delete gclog_or_tty and tty, just flush their output | |
676 if (gclog_or_tty) gclog_or_tty->flush(); | |
677 if (tty) tty->flush(); | |
678 | |
679 if (defaultStream::instance != NULL) { | |
680 static char buf[4096]; | |
681 defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); | |
682 } | |
683 } | |
684 | |
685 staticBufferStream::staticBufferStream(char* buffer, size_t buflen, | |
686 outputStream *outer_stream) { | |
687 _buffer = buffer; | |
688 _buflen = buflen; | |
689 _outer_stream = outer_stream; | |
690 } | |
691 | |
692 void staticBufferStream::write(const char* c, size_t len) { | |
693 _outer_stream->print_raw(c, (int)len); | |
694 } | |
695 | |
696 void staticBufferStream::flush() { | |
697 _outer_stream->flush(); | |
698 } | |
699 | |
700 void staticBufferStream::print(const char* format, ...) { | |
701 va_list ap; | |
702 va_start(ap, format); | |
703 size_t len; | |
704 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); | |
705 write(str, len); | |
706 va_end(ap); | |
707 } | |
708 | |
709 void staticBufferStream::print_cr(const char* format, ...) { | |
710 va_list ap; | |
711 va_start(ap, format); | |
712 size_t len; | |
713 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); | |
714 write(str, len); | |
715 va_end(ap); | |
716 } | |
717 | |
718 void staticBufferStream::vprint(const char *format, va_list argptr) { | |
719 size_t len; | |
720 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); | |
721 write(str, len); | |
722 } | |
723 | |
724 void staticBufferStream::vprint_cr(const char* format, va_list argptr) { | |
725 size_t len; | |
726 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); | |
727 write(str, len); | |
728 } | |
729 | |
730 bufferedStream::bufferedStream(size_t initial_size) : outputStream() { | |
731 buffer_length = initial_size; | |
732 buffer = NEW_C_HEAP_ARRAY(char, buffer_length); | |
733 buffer_pos = 0; | |
734 buffer_fixed = false; | |
735 } | |
736 | |
737 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { | |
738 buffer_length = fixed_buffer_size; | |
739 buffer = fixed_buffer; | |
740 buffer_pos = 0; | |
741 buffer_fixed = true; | |
742 } | |
743 | |
744 void bufferedStream::write(const char* s, size_t len) { | |
745 size_t end = buffer_pos + len; | |
746 if (end >= buffer_length) { | |
747 if (buffer_fixed) { | |
748 // if buffer cannot resize, silently truncate | |
749 len = buffer_length - buffer_pos - 1; | |
750 } else { | |
751 // For small overruns, double the buffer. For larger ones, | |
752 // increase to the requested size. | |
753 if (end < buffer_length * 2) { | |
754 end = buffer_length * 2; | |
755 } | |
756 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end); | |
757 buffer_length = end; | |
758 } | |
759 } | |
760 memcpy(buffer + buffer_pos, s, len); | |
761 buffer_pos += len; | |
762 update_position(s, len); | |
763 } | |
764 | |
765 char* bufferedStream::as_string() { | |
766 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
767 strncpy(copy, buffer, buffer_pos); | |
768 copy[buffer_pos] = 0; // terminating null | |
769 return copy; | |
770 } | |
771 | |
772 bufferedStream::~bufferedStream() { | |
773 if (!buffer_fixed) { | |
774 FREE_C_HEAP_ARRAY(char, buffer); | |
775 } | |
776 } | |
777 | |
778 #ifndef PRODUCT | |
779 | |
780 #if defined(SOLARIS) || defined(LINUX) | |
781 #include <sys/types.h> | |
782 #include <sys/socket.h> | |
783 #include <netinet/in.h> | |
784 #include <arpa/inet.h> | |
785 #endif | |
786 | |
787 // Network access | |
788 networkStream::networkStream() { | |
789 | |
790 _socket = -1; | |
791 | |
792 hpi::initialize_socket_library(); | |
793 | |
794 int result = hpi::socket(AF_INET, SOCK_STREAM, 0); | |
795 if (result <= 0) { | |
796 assert(false, "Socket could not be created!"); | |
797 } else { | |
798 _socket = result; | |
799 } | |
800 } | |
801 | |
802 int networkStream::read(char *buf, size_t len) { | |
803 return hpi::recv(_socket, buf, (int)len, 0); | |
804 } | |
805 | |
806 void networkStream::flush() { | |
807 if (size() != 0) { | |
808 hpi::send(_socket, (char *)base(), (int)size(), 0); | |
809 } | |
810 reset(); | |
811 } | |
812 | |
813 networkStream::~networkStream() { | |
814 close(); | |
815 } | |
816 | |
817 void networkStream::close() { | |
818 if (_socket != -1) { | |
819 flush(); | |
820 hpi::socket_close(_socket); | |
821 _socket = -1; | |
822 } | |
823 } | |
824 | |
825 bool networkStream::connect(const char *ip, short port) { | |
826 | |
827 struct sockaddr_in server; | |
828 server.sin_family = AF_INET; | |
829 server.sin_port = htons(port); | |
830 | |
831 server.sin_addr.s_addr = inet_addr(ip); | |
832 if (server.sin_addr.s_addr == (unsigned long)-1) { | |
833 #ifdef _WINDOWS | |
834 struct hostent* host = hpi::get_host_by_name((char*)ip); | |
835 #else | |
836 struct hostent* host = gethostbyname(ip); | |
837 #endif | |
838 if (host != NULL) { | |
839 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); | |
840 } else { | |
841 return false; | |
842 } | |
843 } | |
844 | |
845 | |
846 int result = hpi::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); | |
847 return (result >= 0); | |
848 } | |
849 | |
850 #endif |