Mercurial > hg > truffle
annotate src/share/vm/utilities/ostream.cpp @ 1657:1a1ce2076047
Merge
author | ysr |
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date | Fri, 16 Jul 2010 10:09:15 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2009, 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 | |
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') { | |
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55 int tw = 8 - (_position & 7); |
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56 _position += tw; |
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57 _precount -= tw-1; // invariant: _precount + _position == total count |
0 | 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) { | |
100
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137 int need_fill = col - position(); |
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138 sp(need_fill); |
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139 } |
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140 |
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141 void outputStream::move_to(int col, int slop, int min_space) { |
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142 if (position() >= col + slop) |
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143 cr(); |
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144 int need_fill = col - position(); |
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145 if (need_fill < min_space) |
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146 need_fill = min_space; |
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147 sp(need_fill); |
0 | 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 | |
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156 #define SP_USE_TABS false |
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157 |
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158 void outputStream::sp(int count) { |
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159 if (count < 0) return; |
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160 if (SP_USE_TABS && count >= 8) { |
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161 int target = position() + count; |
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162 while (count >= 8) { |
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163 this->write("\t", 1); |
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164 count -= 8; |
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165 } |
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166 count = target - position(); |
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167 } |
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168 while (count > 0) { |
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169 int nw = (count > 8) ? 8 : count; |
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170 this->write(" ", nw); |
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171 count -= nw; |
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172 } |
0 | 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 | |
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191 void outputStream::stamp(bool guard, |
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192 const char* prefix, |
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193 const char* suffix) { |
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194 if (!guard) { |
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195 return; |
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196 } |
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197 print_raw(prefix); |
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198 stamp(); |
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199 print_raw(suffix); |
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200 } |
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201 |
0 | 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) { | |
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303 if (_file != NULL) { |
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304 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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305 size_t count = fwrite(s, 1, len, _file); |
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306 } |
0 | 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) { | |
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334 if (_fd != -1) { |
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335 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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336 size_t count = ::write(_fd, s, (int)len); |
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337 } |
0 | 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 | |
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366 static const char* make_log_name(const char* log_name, const char* force_directory) { |
0 | 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 | |
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377 // Compute buffer length |
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378 size_t buffer_length; |
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379 if (force_directory != NULL) { |
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380 buffer_length = strlen(force_directory) + strlen(os::file_separator()) + |
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381 strlen(basename) + 1; |
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382 } else { |
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383 buffer_length = strlen(log_name) + 1; |
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384 } |
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385 |
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386 const char* star = strchr(basename, '*'); |
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387 int star_pos = (star == NULL) ? -1 : (star - nametail); |
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388 |
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389 char pid[32]; |
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390 if (star_pos >= 0) { |
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391 jio_snprintf(pid, sizeof(pid), "%u", os::current_process_id()); |
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392 buffer_length += strlen(pid); |
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393 } |
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394 |
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395 // Create big enough buffer. |
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396 char *buf = NEW_C_HEAP_ARRAY(char, buffer_length); |
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397 |
0 | 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); | |
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409 strcpy(&buf[buf_pos + star_pos], pid); |
0 | 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"; | |
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420 const char* try_name = make_log_name(log_name, NULL); |
0 | 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]; | |
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425 jio_snprintf(warnbuf, sizeof(warnbuf), |
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426 "Warning: Cannot open log file: %s\n", try_name); |
0 | 427 // Note: This feature is for maintainer use only. No need for L10N. |
428 jio_print(warnbuf); | |
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429 FREE_C_HEAP_ARRAY(char, try_name); |
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430 try_name = make_log_name("hs_pid*.log", os::get_temp_directory()); |
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431 jio_snprintf(warnbuf, sizeof(warnbuf), |
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432 "Warning: Forcing option -XX:LogFile=%s\n", try_name); |
0 | 433 jio_print(warnbuf); |
434 delete file; | |
435 file = new(ResourceObj::C_HEAP) fileStream(try_name); | |
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436 FREE_C_HEAP_ARRAY(char, try_name); |
0 | 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 | |
222 | 794 bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { |
0 | 795 buffer_length = initial_size; |
796 buffer = NEW_C_HEAP_ARRAY(char, buffer_length); | |
797 buffer_pos = 0; | |
798 buffer_fixed = false; | |
222 | 799 buffer_max = bufmax; |
0 | 800 } |
801 | |
222 | 802 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { |
0 | 803 buffer_length = fixed_buffer_size; |
804 buffer = fixed_buffer; | |
805 buffer_pos = 0; | |
806 buffer_fixed = true; | |
222 | 807 buffer_max = bufmax; |
0 | 808 } |
809 | |
810 void bufferedStream::write(const char* s, size_t len) { | |
222 | 811 |
812 if(buffer_pos + len > buffer_max) { | |
813 flush(); | |
814 } | |
815 | |
0 | 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 | |
222 | 859 networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { |
0 | 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) { | |
222 | 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"); | |
0 | 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); | |
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905 if (server.sin_addr.s_addr == (uint32_t)-1) { |
0 | 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 |