Mercurial > hg > truffle
annotate src/share/vm/utilities/ostream.cpp @ 7090:05ce1defa4f9
Common out some parts of UnsafeLoad/Store in UnsafeAccess
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 29 Nov 2012 13:24:08 +0100 |
parents | e522a00b91aa |
children | 3ac7d10a6572 |
rev | line source |
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0 | 1 /* |
6605 | 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "compiler/compileLog.hpp" | |
27 #include "oops/oop.inline.hpp" | |
28 #include "runtime/arguments.hpp" | |
29 #include "utilities/defaultStream.hpp" | |
30 #include "utilities/ostream.hpp" | |
31 #include "utilities/top.hpp" | |
32 #include "utilities/xmlstream.hpp" | |
33 #ifdef TARGET_OS_FAMILY_linux | |
34 # include "os_linux.inline.hpp" | |
35 #endif | |
36 #ifdef TARGET_OS_FAMILY_solaris | |
37 # include "os_solaris.inline.hpp" | |
38 #endif | |
39 #ifdef TARGET_OS_FAMILY_windows | |
40 # include "os_windows.inline.hpp" | |
41 #endif | |
3960 | 42 #ifdef TARGET_OS_FAMILY_bsd |
43 # include "os_bsd.inline.hpp" | |
44 #endif | |
0 | 45 |
46 extern "C" void jio_print(const char* s); // Declarationtion of jvm method | |
47 | |
48 outputStream::outputStream(int width) { | |
49 _width = width; | |
50 _position = 0; | |
51 _newlines = 0; | |
52 _precount = 0; | |
53 _indentation = 0; | |
54 } | |
55 | |
56 outputStream::outputStream(int width, bool has_time_stamps) { | |
57 _width = width; | |
58 _position = 0; | |
59 _newlines = 0; | |
60 _precount = 0; | |
61 _indentation = 0; | |
62 if (has_time_stamps) _stamp.update(); | |
63 } | |
64 | |
65 void outputStream::update_position(const char* s, size_t len) { | |
66 for (size_t i = 0; i < len; i++) { | |
67 char ch = s[i]; | |
68 if (ch == '\n') { | |
69 _newlines += 1; | |
70 _precount += _position + 1; | |
71 _position = 0; | |
72 } else if (ch == '\t') { | |
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73 int tw = 8 - (_position & 7); |
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74 _position += tw; |
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75 _precount -= tw-1; // invariant: _precount + _position == total count |
0 | 76 } else { |
77 _position += 1; | |
78 } | |
79 } | |
80 } | |
81 | |
82 // Execute a vsprintf, using the given buffer if necessary. | |
83 // Return a pointer to the formatted string. | |
84 const char* outputStream::do_vsnprintf(char* buffer, size_t buflen, | |
85 const char* format, va_list ap, | |
86 bool add_cr, | |
87 size_t& result_len) { | |
88 const char* result; | |
89 if (add_cr) buflen--; | |
90 if (!strchr(format, '%')) { | |
91 // constant format string | |
92 result = format; | |
93 result_len = strlen(result); | |
94 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
95 } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') { | |
96 // trivial copy-through format string | |
97 result = va_arg(ap, const char*); | |
98 result_len = strlen(result); | |
99 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
100 } else if (vsnprintf(buffer, buflen, format, ap) >= 0) { | |
101 result = buffer; | |
102 result_len = strlen(result); | |
103 } else { | |
104 DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");) | |
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105 |
0 | 106 result = buffer; |
107 result_len = buflen - 1; | |
108 buffer[result_len] = 0; | |
109 } | |
110 if (add_cr) { | |
111 if (result != buffer) { | |
112 strncpy(buffer, result, buflen); | |
113 result = buffer; | |
114 } | |
115 buffer[result_len++] = '\n'; | |
116 buffer[result_len] = 0; | |
117 } | |
118 return result; | |
119 } | |
120 | |
121 void outputStream::print(const char* format, ...) { | |
122 char buffer[O_BUFLEN]; | |
123 va_list ap; | |
124 va_start(ap, format); | |
125 size_t len; | |
126 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len); | |
127 write(str, len); | |
128 va_end(ap); | |
129 } | |
130 | |
131 void outputStream::print_cr(const char* format, ...) { | |
132 char buffer[O_BUFLEN]; | |
133 va_list ap; | |
134 va_start(ap, format); | |
135 size_t len; | |
136 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len); | |
137 write(str, len); | |
138 va_end(ap); | |
139 } | |
140 | |
141 void outputStream::vprint(const char *format, va_list argptr) { | |
142 char buffer[O_BUFLEN]; | |
143 size_t len; | |
144 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len); | |
145 write(str, len); | |
146 } | |
147 | |
148 void outputStream::vprint_cr(const char* format, va_list argptr) { | |
149 char buffer[O_BUFLEN]; | |
150 size_t len; | |
151 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); | |
152 write(str, len); | |
153 } | |
154 | |
155 void outputStream::fill_to(int col) { | |
100
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156 int need_fill = col - position(); |
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157 sp(need_fill); |
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158 } |
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159 |
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160 void outputStream::move_to(int col, int slop, int min_space) { |
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161 if (position() >= col + slop) |
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162 cr(); |
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163 int need_fill = col - position(); |
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164 if (need_fill < min_space) |
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165 need_fill = min_space; |
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166 sp(need_fill); |
0 | 167 } |
168 | |
169 void outputStream::put(char ch) { | |
170 assert(ch != 0, "please fix call site"); | |
171 char buf[] = { ch, '\0' }; | |
172 write(buf, 1); | |
173 } | |
174 | |
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175 #define SP_USE_TABS false |
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176 |
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177 void outputStream::sp(int count) { |
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178 if (count < 0) return; |
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179 if (SP_USE_TABS && count >= 8) { |
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180 int target = position() + count; |
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181 while (count >= 8) { |
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182 this->write("\t", 1); |
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183 count -= 8; |
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184 } |
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185 count = target - position(); |
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186 } |
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187 while (count > 0) { |
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188 int nw = (count > 8) ? 8 : count; |
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189 this->write(" ", nw); |
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190 count -= nw; |
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191 } |
0 | 192 } |
193 | |
194 void outputStream::cr() { | |
195 this->write("\n", 1); | |
196 } | |
197 | |
198 void outputStream::stamp() { | |
199 if (! _stamp.is_updated()) { | |
200 _stamp.update(); // start at 0 on first call to stamp() | |
201 } | |
202 | |
203 // outputStream::stamp() may get called by ostream_abort(), use snprintf | |
204 // to avoid allocating large stack buffer in print(). | |
205 char buf[40]; | |
206 jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds()); | |
207 print_raw(buf); | |
208 } | |
209 | |
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210 void outputStream::stamp(bool guard, |
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211 const char* prefix, |
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212 const char* suffix) { |
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213 if (!guard) { |
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214 return; |
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215 } |
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216 print_raw(prefix); |
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217 stamp(); |
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218 print_raw(suffix); |
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219 } |
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220 |
0 | 221 void outputStream::date_stamp(bool guard, |
222 const char* prefix, | |
223 const char* suffix) { | |
224 if (!guard) { | |
225 return; | |
226 } | |
227 print_raw(prefix); | |
228 static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz"; | |
229 static const int buffer_length = 32; | |
230 char buffer[buffer_length]; | |
231 const char* iso8601_result = os::iso8601_time(buffer, buffer_length); | |
232 if (iso8601_result != NULL) { | |
233 print_raw(buffer); | |
234 } else { | |
235 print_raw(error_time); | |
236 } | |
237 print_raw(suffix); | |
238 return; | |
239 } | |
240 | |
6605 | 241 outputStream& outputStream::indent() { |
0 | 242 while (_position < _indentation) sp(); |
6605 | 243 return *this; |
0 | 244 } |
245 | |
246 void outputStream::print_jlong(jlong value) { | |
247 // N.B. Same as INT64_FORMAT | |
248 print(os::jlong_format_specifier(), value); | |
249 } | |
250 | |
251 void outputStream::print_julong(julong value) { | |
252 // N.B. Same as UINT64_FORMAT | |
253 print(os::julong_format_specifier(), value); | |
254 } | |
255 | |
6605 | 256 /** |
257 * This prints out hex data in a 'windbg' or 'xxd' form, where each line is: | |
258 * <hex-address>: 8 * <hex-halfword> <ascii translation (optional)> | |
259 * example: | |
260 * 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000 .DOF............ | |
261 * 0000010: 0000 0000 0000 0040 0000 0020 0000 0005 .......@... .... | |
262 * 0000020: 0000 0000 0000 0040 0000 0000 0000 015d .......@.......] | |
263 * ... | |
264 * | |
265 * indent is applied to each line. Ends with a CR. | |
266 */ | |
267 void outputStream::print_data(void* data, size_t len, bool with_ascii) { | |
268 size_t limit = (len + 16) / 16 * 16; | |
269 for (size_t i = 0; i < limit; ++i) { | |
270 if (i % 16 == 0) { | |
271 indent().print("%07x:", i); | |
272 } | |
273 if (i % 2 == 0) { | |
274 print(" "); | |
275 } | |
276 if (i < len) { | |
277 print("%02x", ((unsigned char*)data)[i]); | |
278 } else { | |
279 print(" "); | |
280 } | |
281 if ((i + 1) % 16 == 0) { | |
282 if (with_ascii) { | |
283 print(" "); | |
284 for (size_t j = 0; j < 16; ++j) { | |
285 size_t idx = i + j - 15; | |
286 if (idx < len) { | |
287 char c = ((char*)data)[idx]; | |
288 print("%c", c >= 32 && c <= 126 ? c : '.'); | |
289 } | |
290 } | |
291 } | |
292 print_cr(""); | |
293 } | |
294 } | |
295 } | |
296 | |
0 | 297 stringStream::stringStream(size_t initial_size) : outputStream() { |
298 buffer_length = initial_size; | |
299 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); | |
300 buffer_pos = 0; | |
301 buffer_fixed = false; | |
302 } | |
303 | |
304 // useful for output to fixed chunks of memory, such as performance counters | |
305 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { | |
306 buffer_length = fixed_buffer_size; | |
307 buffer = fixed_buffer; | |
308 buffer_pos = 0; | |
309 buffer_fixed = true; | |
310 } | |
311 | |
312 void stringStream::write(const char* s, size_t len) { | |
313 size_t write_len = len; // number of non-null bytes to write | |
314 size_t end = buffer_pos + len + 1; // position after write and final '\0' | |
315 if (end > buffer_length) { | |
316 if (buffer_fixed) { | |
317 // if buffer cannot resize, silently truncate | |
318 end = buffer_length; | |
319 write_len = end - buffer_pos - 1; // leave room for the final '\0' | |
320 } else { | |
321 // For small overruns, double the buffer. For larger ones, | |
322 // increase to the requested size. | |
323 if (end < buffer_length * 2) { | |
324 end = buffer_length * 2; | |
325 } | |
326 char* oldbuf = buffer; | |
327 buffer = NEW_RESOURCE_ARRAY(char, end); | |
328 strncpy(buffer, oldbuf, buffer_pos); | |
329 buffer_length = end; | |
330 } | |
331 } | |
332 // invariant: buffer is always null-terminated | |
333 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); | |
334 buffer[buffer_pos + write_len] = 0; | |
335 strncpy(buffer + buffer_pos, s, write_len); | |
336 buffer_pos += write_len; | |
337 | |
338 // Note that the following does not depend on write_len. | |
339 // This means that position and count get updated | |
340 // even when overflow occurs. | |
341 update_position(s, len); | |
342 } | |
343 | |
344 char* stringStream::as_string() { | |
345 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
346 strncpy(copy, buffer, buffer_pos); | |
347 copy[buffer_pos] = 0; // terminating null | |
348 return copy; | |
349 } | |
350 | |
351 stringStream::~stringStream() {} | |
352 | |
353 xmlStream* xtty; | |
354 outputStream* tty; | |
355 outputStream* gclog_or_tty; | |
356 extern Mutex* tty_lock; | |
357 | |
358 fileStream::fileStream(const char* file_name) { | |
359 _file = fopen(file_name, "w"); | |
360 _need_close = true; | |
361 } | |
362 | |
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363 fileStream::fileStream(const char* file_name, const char* opentype) { |
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364 _file = fopen(file_name, opentype); |
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365 _need_close = true; |
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366 } |
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367 |
0 | 368 void fileStream::write(const char* s, size_t len) { |
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369 if (_file != NULL) { |
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370 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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371 size_t count = fwrite(s, 1, len, _file); |
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372 } |
0 | 373 update_position(s, len); |
374 } | |
375 | |
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376 long fileStream::fileSize() { |
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377 long size = -1; |
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378 if (_file != NULL) { |
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379 long pos = ::ftell(_file); |
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380 if (::fseek(_file, 0, SEEK_END) == 0) { |
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381 size = ::ftell(_file); |
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382 } |
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383 ::fseek(_file, pos, SEEK_SET); |
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384 } |
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385 return size; |
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386 } |
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387 |
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388 char* fileStream::readln(char *data, int count ) { |
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389 char * ret = ::fgets(data, count, _file); |
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390 //Get rid of annoying \n char |
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391 data[::strlen(data)-1] = '\0'; |
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392 return ret; |
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393 } |
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394 |
0 | 395 fileStream::~fileStream() { |
396 if (_file != NULL) { | |
397 if (_need_close) fclose(_file); | |
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398 _file = NULL; |
0 | 399 } |
400 } | |
401 | |
402 void fileStream::flush() { | |
403 fflush(_file); | |
404 } | |
405 | |
406 fdStream::fdStream(const char* file_name) { | |
407 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
408 _need_close = true; | |
409 } | |
410 | |
411 fdStream::~fdStream() { | |
412 if (_fd != -1) { | |
413 if (_need_close) close(_fd); | |
414 _fd = -1; | |
415 } | |
416 } | |
417 | |
418 void fdStream::write(const char* s, size_t len) { | |
513
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419 if (_fd != -1) { |
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420 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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421 size_t count = ::write(_fd, s, (int)len); |
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422 } |
0 | 423 update_position(s, len); |
424 } | |
425 | |
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426 rotatingFileStream::~rotatingFileStream() { |
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427 if (_file != NULL) { |
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428 if (_need_close) fclose(_file); |
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429 _file = NULL; |
6197 | 430 FREE_C_HEAP_ARRAY(char, _file_name, mtInternal); |
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431 _file_name = NULL; |
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432 } |
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433 } |
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434 |
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435 rotatingFileStream::rotatingFileStream(const char* file_name) { |
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436 _cur_file_num = 0; |
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437 _bytes_writen = 0L; |
6197 | 438 _file_name = NEW_C_HEAP_ARRAY(char, strlen(file_name)+10, mtInternal); |
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439 jio_snprintf(_file_name, strlen(file_name)+10, "%s.%d", file_name, _cur_file_num); |
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440 _file = fopen(_file_name, "w"); |
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441 _need_close = true; |
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442 } |
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443 |
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444 rotatingFileStream::rotatingFileStream(const char* file_name, const char* opentype) { |
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445 _cur_file_num = 0; |
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446 _bytes_writen = 0L; |
6197 | 447 _file_name = NEW_C_HEAP_ARRAY(char, strlen(file_name)+10, mtInternal); |
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448 jio_snprintf(_file_name, strlen(file_name)+10, "%s.%d", file_name, _cur_file_num); |
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449 _file = fopen(_file_name, opentype); |
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450 _need_close = true; |
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451 } |
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452 |
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453 void rotatingFileStream::write(const char* s, size_t len) { |
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454 if (_file != NULL) { |
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455 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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456 size_t count = fwrite(s, 1, len, _file); |
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457 Atomic::add((jlong)count, &_bytes_writen); |
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458 } |
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459 update_position(s, len); |
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460 } |
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461 |
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462 // rotate_log must be called from VMThread at safepoint. In case need change parameters |
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463 // for gc log rotation from thread other than VMThread, a sub type of VM_Operation |
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464 // should be created and be submitted to VMThread's operation queue. DO NOT call this |
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465 // function directly. Currently, it is safe to rotate log at safepoint through VMThread. |
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466 // That is, no mutator threads and concurrent GC threads run parallel with VMThread to |
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467 // write to gc log file at safepoint. If in future, changes made for mutator threads or |
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468 // concurrent GC threads to run parallel with VMThread at safepoint, write and rotate_log |
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469 // must be synchronized. |
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470 void rotatingFileStream::rotate_log() { |
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471 if (_bytes_writen < (jlong)GCLogFileSize) return; |
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472 #ifdef ASSERT |
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473 Thread *thread = Thread::current(); |
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474 assert(thread == NULL || |
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475 (thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()), |
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476 "Must be VMThread at safepoint"); |
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477 #endif |
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478 if (NumberOfGCLogFiles == 1) { |
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479 // rotate in same file |
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480 rewind(); |
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481 _bytes_writen = 0L; |
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482 return; |
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483 } |
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484 |
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485 // rotate file in names file.0, file.1, file.2, ..., file.<MaxGCLogFileNumbers-1> |
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486 // close current file, rotate to next file |
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487 if (_file != NULL) { |
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488 _cur_file_num ++; |
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489 if (_cur_file_num >= NumberOfGCLogFiles) _cur_file_num = 0; |
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490 jio_snprintf(_file_name, strlen(Arguments::gc_log_filename()) + 10, "%s.%d", |
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491 Arguments::gc_log_filename(), _cur_file_num); |
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492 fclose(_file); |
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493 _file = NULL; |
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494 } |
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495 _file = fopen(_file_name, "w"); |
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496 if (_file != NULL) { |
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497 _bytes_writen = 0L; |
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498 _need_close = true; |
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499 } else { |
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500 tty->print_cr("failed to open rotation log file %s due to %s\n", |
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501 _file_name, strerror(errno)); |
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502 _need_close = false; |
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503 } |
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504 } |
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505 |
0 | 506 defaultStream* defaultStream::instance = NULL; |
507 int defaultStream::_output_fd = 1; | |
508 int defaultStream::_error_fd = 2; | |
509 FILE* defaultStream::_output_stream = stdout; | |
510 FILE* defaultStream::_error_stream = stderr; | |
511 | |
512 #define LOG_MAJOR_VERSION 160 | |
513 #define LOG_MINOR_VERSION 1 | |
514 | |
515 void defaultStream::init() { | |
516 _inited = true; | |
517 if (LogVMOutput || LogCompilation) { | |
518 init_log(); | |
519 } | |
520 } | |
521 | |
522 bool defaultStream::has_log_file() { | |
523 // lazily create log file (at startup, LogVMOutput is false even | |
524 // if +LogVMOutput is used, because the flags haven't been parsed yet) | |
525 // For safer printing during fatal error handling, do not init logfile | |
526 // if a VM error has been reported. | |
527 if (!_inited && !is_error_reported()) init(); | |
528 return _log_file != NULL; | |
529 } | |
530 | |
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531 static const char* make_log_name(const char* log_name, const char* force_directory) { |
0 | 532 const char* basename = log_name; |
533 char file_sep = os::file_separator()[0]; | |
534 const char* cp; | |
535 for (cp = log_name; *cp != '\0'; cp++) { | |
536 if (*cp == '/' || *cp == file_sep) { | |
537 basename = cp+1; | |
538 } | |
539 } | |
540 const char* nametail = log_name; | |
541 | |
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542 // Compute buffer length |
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543 size_t buffer_length; |
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544 if (force_directory != NULL) { |
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545 buffer_length = strlen(force_directory) + strlen(os::file_separator()) + |
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546 strlen(basename) + 1; |
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547 } else { |
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548 buffer_length = strlen(log_name) + 1; |
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549 } |
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550 |
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551 const char* star = strchr(basename, '*'); |
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552 int star_pos = (star == NULL) ? -1 : (star - nametail); |
2400
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553 int skip = 1; |
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554 if (star == NULL) { |
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555 // Try %p |
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556 star = strstr(basename, "%p"); |
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557 if (star != NULL) { |
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558 skip = 2; |
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559 } |
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560 } |
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561 star_pos = (star == NULL) ? -1 : (star - nametail); |
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562 |
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563 char pid[32]; |
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564 if (star_pos >= 0) { |
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565 jio_snprintf(pid, sizeof(pid), "%u", os::current_process_id()); |
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566 buffer_length += strlen(pid); |
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567 } |
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568 |
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569 // Create big enough buffer. |
6197 | 570 char *buf = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); |
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571 |
0 | 572 strcpy(buf, ""); |
573 if (force_directory != NULL) { | |
574 strcat(buf, force_directory); | |
575 strcat(buf, os::file_separator()); | |
576 nametail = basename; // completely skip directory prefix | |
577 } | |
578 | |
579 if (star_pos >= 0) { | |
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580 // convert foo*bar.log or foo%pbar.log to foo123bar.log |
0 | 581 int buf_pos = (int) strlen(buf); |
582 strncpy(&buf[buf_pos], nametail, star_pos); | |
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583 strcpy(&buf[buf_pos + star_pos], pid); |
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584 nametail += star_pos + skip; // skip prefix and pid format |
0 | 585 } |
586 | |
587 strcat(buf, nametail); // append rest of name, or all of name | |
588 return buf; | |
589 } | |
590 | |
591 void defaultStream::init_log() { | |
592 // %%% Need a MutexLocker? | |
593 const char* log_name = LogFile != NULL ? LogFile : "hotspot.log"; | |
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594 const char* try_name = make_log_name(log_name, NULL); |
6197 | 595 fileStream* file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); |
0 | 596 if (!file->is_open()) { |
597 // Try again to open the file. | |
598 char warnbuf[O_BUFLEN*2]; | |
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599 jio_snprintf(warnbuf, sizeof(warnbuf), |
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600 "Warning: Cannot open log file: %s\n", try_name); |
0 | 601 // Note: This feature is for maintainer use only. No need for L10N. |
602 jio_print(warnbuf); | |
6197 | 603 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); |
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604 try_name = make_log_name("hs_pid%p.log", os::get_temp_directory()); |
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605 jio_snprintf(warnbuf, sizeof(warnbuf), |
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606 "Warning: Forcing option -XX:LogFile=%s\n", try_name); |
0 | 607 jio_print(warnbuf); |
608 delete file; | |
6197 | 609 file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); |
610 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); | |
0 | 611 } |
612 if (file->is_open()) { | |
613 _log_file = file; | |
6197 | 614 xmlStream* xs = new(ResourceObj::C_HEAP, mtInternal) xmlStream(file); |
0 | 615 _outer_xmlStream = xs; |
616 if (this == tty) xtty = xs; | |
617 // Write XML header. | |
618 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>"); | |
619 // (For now, don't bother to issue a DTD for this private format.) | |
620 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); | |
621 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if | |
622 // we ever get round to introduce that method on the os class | |
623 xs->head("hotspot_log version='%d %d'" | |
624 " process='%d' time_ms='"INT64_FORMAT"'", | |
625 LOG_MAJOR_VERSION, LOG_MINOR_VERSION, | |
626 os::current_process_id(), time_ms); | |
627 // Write VM version header immediately. | |
628 xs->head("vm_version"); | |
629 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); | |
630 xs->tail("name"); | |
631 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); | |
632 xs->tail("release"); | |
633 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); | |
634 xs->tail("info"); | |
635 xs->tail("vm_version"); | |
636 // Record information about the command-line invocation. | |
637 xs->head("vm_arguments"); // Cf. Arguments::print_on() | |
638 if (Arguments::num_jvm_flags() > 0) { | |
639 xs->head("flags"); | |
640 Arguments::print_jvm_flags_on(xs->text()); | |
641 xs->tail("flags"); | |
642 } | |
643 if (Arguments::num_jvm_args() > 0) { | |
644 xs->head("args"); | |
645 Arguments::print_jvm_args_on(xs->text()); | |
646 xs->tail("args"); | |
647 } | |
648 if (Arguments::java_command() != NULL) { | |
649 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); | |
650 xs->tail("command"); | |
651 } | |
652 if (Arguments::sun_java_launcher() != NULL) { | |
653 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); | |
654 xs->tail("launcher"); | |
655 } | |
656 if (Arguments::system_properties() != NULL) { | |
657 xs->head("properties"); | |
658 // Print it as a java-style property list. | |
659 // System properties don't generally contain newlines, so don't bother with unparsing. | |
660 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
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661 xs->text()->print(p->key() ? p->key() : ""); |
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662 xs->text()->print("="); |
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663 xs->text()->print_cr(p->value() ? p->value() : ""); |
0 | 664 } |
665 xs->tail("properties"); | |
666 } | |
667 xs->tail("vm_arguments"); | |
668 // tty output per se is grouped under the <tty>...</tty> element. | |
669 xs->head("tty"); | |
670 // All further non-markup text gets copied to the tty: | |
671 xs->_text = this; // requires friend declaration! | |
672 } else { | |
673 delete(file); | |
674 // and leave xtty as NULL | |
675 LogVMOutput = false; | |
676 DisplayVMOutput = true; | |
677 LogCompilation = false; | |
678 } | |
679 } | |
680 | |
681 // finish_log() is called during normal VM shutdown. finish_log_on_error() is | |
682 // called by ostream_abort() after a fatal error. | |
683 // | |
684 void defaultStream::finish_log() { | |
685 xmlStream* xs = _outer_xmlStream; | |
686 xs->done("tty"); | |
687 | |
688 // Other log forks are appended here, at the End of Time: | |
689 CompileLog::finish_log(xs->out()); // write compile logging, if any, now | |
690 | |
691 xs->done("hotspot_log"); | |
692 xs->flush(); | |
693 | |
694 fileStream* file = _log_file; | |
695 _log_file = NULL; | |
696 | |
697 delete _outer_xmlStream; | |
698 _outer_xmlStream = NULL; | |
699 | |
700 file->flush(); | |
701 delete file; | |
702 } | |
703 | |
704 void defaultStream::finish_log_on_error(char *buf, int buflen) { | |
705 xmlStream* xs = _outer_xmlStream; | |
706 | |
707 if (xs && xs->out()) { | |
708 | |
709 xs->done_raw("tty"); | |
710 | |
711 // Other log forks are appended here, at the End of Time: | |
712 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now | |
713 | |
714 xs->done_raw("hotspot_log"); | |
715 xs->flush(); | |
716 | |
717 fileStream* file = _log_file; | |
718 _log_file = NULL; | |
719 _outer_xmlStream = NULL; | |
720 | |
721 if (file) { | |
722 file->flush(); | |
723 | |
724 // Can't delete or close the file because delete and fclose aren't | |
725 // async-safe. We are about to die, so leave it to the kernel. | |
726 // delete file; | |
727 } | |
728 } | |
729 } | |
730 | |
731 intx defaultStream::hold(intx writer_id) { | |
732 bool has_log = has_log_file(); // check before locking | |
733 if (// impossible, but who knows? | |
734 writer_id == NO_WRITER || | |
735 | |
736 // bootstrap problem | |
737 tty_lock == NULL || | |
738 | |
739 // can't grab a lock or call Thread::current() if TLS isn't initialized | |
740 ThreadLocalStorage::thread() == NULL || | |
741 | |
742 // developer hook | |
743 !SerializeVMOutput || | |
744 | |
745 // VM already unhealthy | |
746 is_error_reported() || | |
747 | |
748 // safepoint == global lock (for VM only) | |
749 (SafepointSynchronize::is_synchronizing() && | |
750 Thread::current()->is_VM_thread()) | |
751 ) { | |
752 // do not attempt to lock unless we know the thread and the VM is healthy | |
753 return NO_WRITER; | |
754 } | |
755 if (_writer == writer_id) { | |
756 // already held, no need to re-grab the lock | |
757 return NO_WRITER; | |
758 } | |
759 tty_lock->lock_without_safepoint_check(); | |
760 // got the lock | |
761 if (writer_id != _last_writer) { | |
762 if (has_log) { | |
763 _log_file->bol(); | |
764 // output a hint where this output is coming from: | |
6843 | 765 _log_file->print_cr("<writer thread='" UINTX_FORMAT "'/>", writer_id); |
0 | 766 } |
767 _last_writer = writer_id; | |
768 } | |
769 _writer = writer_id; | |
770 return writer_id; | |
771 } | |
772 | |
773 void defaultStream::release(intx holder) { | |
774 if (holder == NO_WRITER) { | |
775 // nothing to release: either a recursive lock, or we scribbled (too bad) | |
776 return; | |
777 } | |
778 if (_writer != holder) { | |
779 return; // already unlocked, perhaps via break_tty_lock_for_safepoint | |
780 } | |
781 _writer = NO_WRITER; | |
782 tty_lock->unlock(); | |
783 } | |
784 | |
785 | |
786 // Yuck: jio_print does not accept char*/len. | |
787 static void call_jio_print(const char* s, size_t len) { | |
788 char buffer[O_BUFLEN+100]; | |
789 if (len > sizeof(buffer)-1) { | |
790 warning("increase O_BUFLEN in ostream.cpp -- output truncated"); | |
791 len = sizeof(buffer)-1; | |
792 } | |
793 strncpy(buffer, s, len); | |
794 buffer[len] = '\0'; | |
795 jio_print(buffer); | |
796 } | |
797 | |
798 | |
799 void defaultStream::write(const char* s, size_t len) { | |
800 intx thread_id = os::current_thread_id(); | |
801 intx holder = hold(thread_id); | |
802 | |
803 if (DisplayVMOutput && | |
804 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { | |
805 // print to output stream. It can be redirected by a vfprintf hook | |
806 if (s[len] == '\0') { | |
807 jio_print(s); | |
808 } else { | |
809 call_jio_print(s, len); | |
810 } | |
811 } | |
812 | |
813 // print to log file | |
814 if (has_log_file()) { | |
815 int nl0 = _newlines; | |
816 xmlTextStream::write(s, len); | |
817 // flush the log file too, if there were any newlines | |
818 if (nl0 != _newlines){ | |
819 flush(); | |
820 } | |
821 } else { | |
822 update_position(s, len); | |
823 } | |
824 | |
825 release(holder); | |
826 } | |
827 | |
828 intx ttyLocker::hold_tty() { | |
829 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; | |
830 intx thread_id = os::current_thread_id(); | |
831 return defaultStream::instance->hold(thread_id); | |
832 } | |
833 | |
834 void ttyLocker::release_tty(intx holder) { | |
835 if (holder == defaultStream::NO_WRITER) return; | |
836 defaultStream::instance->release(holder); | |
837 } | |
838 | |
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839 bool ttyLocker::release_tty_if_locked() { |
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840 intx thread_id = os::current_thread_id(); |
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841 if (defaultStream::instance->writer() == thread_id) { |
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842 // release the lock and return true so callers know if was |
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843 // previously held. |
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844 release_tty(thread_id); |
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845 return true; |
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846 } |
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847 return false; |
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848 } |
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849 |
0 | 850 void ttyLocker::break_tty_lock_for_safepoint(intx holder) { |
851 if (defaultStream::instance != NULL && | |
852 defaultStream::instance->writer() == holder) { | |
853 if (xtty != NULL) { | |
854 xtty->print_cr("<!-- safepoint while printing -->"); | |
855 } | |
856 defaultStream::instance->release(holder); | |
857 } | |
858 // (else there was no lock to break) | |
859 } | |
860 | |
861 void ostream_init() { | |
862 if (defaultStream::instance == NULL) { | |
6197 | 863 defaultStream::instance = new(ResourceObj::C_HEAP, mtInternal) defaultStream(); |
0 | 864 tty = defaultStream::instance; |
865 | |
866 // We want to ensure that time stamps in GC logs consider time 0 | |
867 // the time when the JVM is initialized, not the first time we ask | |
868 // for a time stamp. So, here, we explicitly update the time stamp | |
869 // of tty. | |
870 tty->time_stamp().update_to(1); | |
871 } | |
872 } | |
873 | |
874 void ostream_init_log() { | |
875 // For -Xloggc:<file> option - called in runtime/thread.cpp | |
876 // Note : this must be called AFTER ostream_init() | |
877 | |
878 gclog_or_tty = tty; // default to tty | |
879 if (Arguments::gc_log_filename() != NULL) { | |
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880 fileStream * gclog = UseGCLogFileRotation ? |
6197 | 881 new(ResourceObj::C_HEAP, mtInternal) |
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882 rotatingFileStream(Arguments::gc_log_filename()) : |
6197 | 883 new(ResourceObj::C_HEAP, mtInternal) |
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884 fileStream(Arguments::gc_log_filename()); |
0 | 885 if (gclog->is_open()) { |
886 // now we update the time stamp of the GC log to be synced up | |
887 // with tty. | |
888 gclog->time_stamp().update_to(tty->time_stamp().ticks()); | |
889 } | |
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890 gclog_or_tty = gclog; |
0 | 891 } |
892 | |
893 // If we haven't lazily initialized the logfile yet, do it now, | |
894 // to avoid the possibility of lazy initialization during a VM | |
895 // crash, which can affect the stability of the fatal error handler. | |
896 defaultStream::instance->has_log_file(); | |
897 } | |
898 | |
899 // ostream_exit() is called during normal VM exit to finish log files, flush | |
900 // output and free resource. | |
901 void ostream_exit() { | |
902 static bool ostream_exit_called = false; | |
903 if (ostream_exit_called) return; | |
904 ostream_exit_called = true; | |
905 if (gclog_or_tty != tty) { | |
906 delete gclog_or_tty; | |
907 } | |
908 { | |
909 // we temporaly disable PrintMallocFree here | |
910 // as otherwise it'll lead to using of almost deleted | |
911 // tty or defaultStream::instance in logging facility | |
912 // of HeapFree(), see 6391258 | |
913 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) | |
914 if (tty != defaultStream::instance) { | |
915 delete tty; | |
916 } | |
917 if (defaultStream::instance != NULL) { | |
918 delete defaultStream::instance; | |
919 } | |
920 } | |
921 tty = NULL; | |
922 xtty = NULL; | |
923 gclog_or_tty = NULL; | |
924 defaultStream::instance = NULL; | |
925 } | |
926 | |
927 // ostream_abort() is called by os::abort() when VM is about to die. | |
928 void ostream_abort() { | |
929 // Here we can't delete gclog_or_tty and tty, just flush their output | |
930 if (gclog_or_tty) gclog_or_tty->flush(); | |
931 if (tty) tty->flush(); | |
932 | |
933 if (defaultStream::instance != NULL) { | |
934 static char buf[4096]; | |
935 defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); | |
936 } | |
937 } | |
938 | |
939 staticBufferStream::staticBufferStream(char* buffer, size_t buflen, | |
940 outputStream *outer_stream) { | |
941 _buffer = buffer; | |
942 _buflen = buflen; | |
943 _outer_stream = outer_stream; | |
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944 // compile task prints time stamp relative to VM start |
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945 _stamp.update_to(1); |
0 | 946 } |
947 | |
948 void staticBufferStream::write(const char* c, size_t len) { | |
949 _outer_stream->print_raw(c, (int)len); | |
950 } | |
951 | |
952 void staticBufferStream::flush() { | |
953 _outer_stream->flush(); | |
954 } | |
955 | |
956 void staticBufferStream::print(const char* format, ...) { | |
957 va_list ap; | |
958 va_start(ap, format); | |
959 size_t len; | |
960 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); | |
961 write(str, len); | |
962 va_end(ap); | |
963 } | |
964 | |
965 void staticBufferStream::print_cr(const char* format, ...) { | |
966 va_list ap; | |
967 va_start(ap, format); | |
968 size_t len; | |
969 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); | |
970 write(str, len); | |
971 va_end(ap); | |
972 } | |
973 | |
974 void staticBufferStream::vprint(const char *format, va_list argptr) { | |
975 size_t len; | |
976 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); | |
977 write(str, len); | |
978 } | |
979 | |
980 void staticBufferStream::vprint_cr(const char* format, va_list argptr) { | |
981 size_t len; | |
982 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); | |
983 write(str, len); | |
984 } | |
985 | |
222 | 986 bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { |
0 | 987 buffer_length = initial_size; |
6197 | 988 buffer = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); |
0 | 989 buffer_pos = 0; |
990 buffer_fixed = false; | |
222 | 991 buffer_max = bufmax; |
0 | 992 } |
993 | |
222 | 994 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { |
0 | 995 buffer_length = fixed_buffer_size; |
996 buffer = fixed_buffer; | |
997 buffer_pos = 0; | |
998 buffer_fixed = true; | |
222 | 999 buffer_max = bufmax; |
0 | 1000 } |
1001 | |
1002 void bufferedStream::write(const char* s, size_t len) { | |
222 | 1003 |
1004 if(buffer_pos + len > buffer_max) { | |
1005 flush(); | |
1006 } | |
1007 | |
0 | 1008 size_t end = buffer_pos + len; |
1009 if (end >= buffer_length) { | |
1010 if (buffer_fixed) { | |
1011 // if buffer cannot resize, silently truncate | |
1012 len = buffer_length - buffer_pos - 1; | |
1013 } else { | |
1014 // For small overruns, double the buffer. For larger ones, | |
1015 // increase to the requested size. | |
1016 if (end < buffer_length * 2) { | |
1017 end = buffer_length * 2; | |
1018 } | |
6197 | 1019 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end, mtInternal); |
0 | 1020 buffer_length = end; |
1021 } | |
1022 } | |
1023 memcpy(buffer + buffer_pos, s, len); | |
1024 buffer_pos += len; | |
1025 update_position(s, len); | |
1026 } | |
1027 | |
1028 char* bufferedStream::as_string() { | |
1029 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
1030 strncpy(copy, buffer, buffer_pos); | |
1031 copy[buffer_pos] = 0; // terminating null | |
1032 return copy; | |
1033 } | |
1034 | |
1035 bufferedStream::~bufferedStream() { | |
1036 if (!buffer_fixed) { | |
6197 | 1037 FREE_C_HEAP_ARRAY(char, buffer, mtInternal); |
0 | 1038 } |
1039 } | |
1040 | |
1041 #ifndef PRODUCT | |
1042 | |
3960 | 1043 #if defined(SOLARIS) || defined(LINUX) || defined(_ALLBSD_SOURCE) |
0 | 1044 #include <sys/types.h> |
1045 #include <sys/socket.h> | |
1046 #include <netinet/in.h> | |
1047 #include <arpa/inet.h> | |
1048 #endif | |
1049 | |
1050 // Network access | |
222 | 1051 networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { |
0 | 1052 |
1053 _socket = -1; | |
1054 | |
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1055 int result = os::socket(AF_INET, SOCK_STREAM, 0); |
0 | 1056 if (result <= 0) { |
1057 assert(false, "Socket could not be created!"); | |
1058 } else { | |
1059 _socket = result; | |
1060 } | |
1061 } | |
1062 | |
1063 int networkStream::read(char *buf, size_t len) { | |
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1064 return os::recv(_socket, buf, (int)len, 0); |
0 | 1065 } |
1066 | |
1067 void networkStream::flush() { | |
1068 if (size() != 0) { | |
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1069 int result = os::raw_send(_socket, (char *)base(), size(), 0); |
222 | 1070 assert(result != -1, "connection error"); |
1071 assert(result == (int)size(), "didn't send enough data"); | |
0 | 1072 } |
1073 reset(); | |
1074 } | |
1075 | |
1076 networkStream::~networkStream() { | |
1077 close(); | |
1078 } | |
1079 | |
1080 void networkStream::close() { | |
1081 if (_socket != -1) { | |
1082 flush(); | |
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1083 os::socket_close(_socket); |
0 | 1084 _socket = -1; |
1085 } | |
1086 } | |
1087 | |
1088 bool networkStream::connect(const char *ip, short port) { | |
1089 | |
1090 struct sockaddr_in server; | |
1091 server.sin_family = AF_INET; | |
1092 server.sin_port = htons(port); | |
1093 | |
1094 server.sin_addr.s_addr = inet_addr(ip); | |
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1095 if (server.sin_addr.s_addr == (uint32_t)-1) { |
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1096 struct hostent* host = os::get_host_by_name((char*)ip); |
0 | 1097 if (host != NULL) { |
1098 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); | |
1099 } else { | |
1100 return false; | |
1101 } | |
1102 } | |
1103 | |
1104 | |
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1105 int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); |
0 | 1106 return (result >= 0); |
1107 } | |
1108 | |
1109 #endif |