Mercurial > hg > truffle
annotate src/share/vm/utilities/ostream.cpp @ 5274:e72dd6533eb9
documented importance of nmethod::_graal_compiled_method wrt code unloading and GC
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 23 Apr 2012 15:42:30 +0200 |
parents | 3d91d5d7b166 |
children | 957c266d8bc5 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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) { | |
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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 | |
241 void outputStream::indent() { | |
242 while (_position < _indentation) sp(); | |
243 } | |
244 | |
245 void outputStream::print_jlong(jlong value) { | |
246 // N.B. Same as INT64_FORMAT | |
247 print(os::jlong_format_specifier(), value); | |
248 } | |
249 | |
250 void outputStream::print_julong(julong value) { | |
251 // N.B. Same as UINT64_FORMAT | |
252 print(os::julong_format_specifier(), value); | |
253 } | |
254 | |
255 stringStream::stringStream(size_t initial_size) : outputStream() { | |
256 buffer_length = initial_size; | |
257 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); | |
258 buffer_pos = 0; | |
259 buffer_fixed = false; | |
260 } | |
261 | |
262 // useful for output to fixed chunks of memory, such as performance counters | |
263 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { | |
264 buffer_length = fixed_buffer_size; | |
265 buffer = fixed_buffer; | |
266 buffer_pos = 0; | |
267 buffer_fixed = true; | |
268 } | |
269 | |
270 void stringStream::write(const char* s, size_t len) { | |
271 size_t write_len = len; // number of non-null bytes to write | |
272 size_t end = buffer_pos + len + 1; // position after write and final '\0' | |
273 if (end > buffer_length) { | |
274 if (buffer_fixed) { | |
275 // if buffer cannot resize, silently truncate | |
276 end = buffer_length; | |
277 write_len = end - buffer_pos - 1; // leave room for the final '\0' | |
278 } else { | |
279 // For small overruns, double the buffer. For larger ones, | |
280 // increase to the requested size. | |
281 if (end < buffer_length * 2) { | |
282 end = buffer_length * 2; | |
283 } | |
284 char* oldbuf = buffer; | |
285 buffer = NEW_RESOURCE_ARRAY(char, end); | |
286 strncpy(buffer, oldbuf, buffer_pos); | |
287 buffer_length = end; | |
288 } | |
289 } | |
290 // invariant: buffer is always null-terminated | |
291 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); | |
292 buffer[buffer_pos + write_len] = 0; | |
293 strncpy(buffer + buffer_pos, s, write_len); | |
294 buffer_pos += write_len; | |
295 | |
296 // Note that the following does not depend on write_len. | |
297 // This means that position and count get updated | |
298 // even when overflow occurs. | |
299 update_position(s, len); | |
300 } | |
301 | |
302 char* stringStream::as_string() { | |
303 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
304 strncpy(copy, buffer, buffer_pos); | |
305 copy[buffer_pos] = 0; // terminating null | |
306 return copy; | |
307 } | |
308 | |
309 stringStream::~stringStream() {} | |
310 | |
311 xmlStream* xtty; | |
312 outputStream* tty; | |
313 outputStream* gclog_or_tty; | |
314 extern Mutex* tty_lock; | |
315 | |
316 fileStream::fileStream(const char* file_name) { | |
317 _file = fopen(file_name, "w"); | |
318 _need_close = true; | |
319 } | |
320 | |
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321 fileStream::fileStream(const char* file_name, const char* opentype) { |
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322 _file = fopen(file_name, opentype); |
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323 _need_close = true; |
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324 } |
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325 |
0 | 326 void fileStream::write(const char* s, size_t len) { |
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327 if (_file != NULL) { |
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328 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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329 size_t count = fwrite(s, 1, len, _file); |
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330 } |
0 | 331 update_position(s, len); |
332 } | |
333 | |
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334 long fileStream::fileSize() { |
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335 long size = -1; |
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336 if (_file != NULL) { |
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337 long pos = ::ftell(_file); |
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338 if (::fseek(_file, 0, SEEK_END) == 0) { |
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339 size = ::ftell(_file); |
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340 } |
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341 ::fseek(_file, pos, SEEK_SET); |
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342 } |
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343 return size; |
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344 } |
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345 |
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346 char* fileStream::readln(char *data, int count ) { |
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347 char * ret = ::fgets(data, count, _file); |
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348 //Get rid of annoying \n char |
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349 data[::strlen(data)-1] = '\0'; |
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350 return ret; |
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351 } |
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352 |
0 | 353 fileStream::~fileStream() { |
354 if (_file != NULL) { | |
355 if (_need_close) fclose(_file); | |
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356 _file = NULL; |
0 | 357 } |
358 } | |
359 | |
360 void fileStream::flush() { | |
361 fflush(_file); | |
362 } | |
363 | |
364 fdStream::fdStream(const char* file_name) { | |
365 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
366 _need_close = true; | |
367 } | |
368 | |
369 fdStream::~fdStream() { | |
370 if (_fd != -1) { | |
371 if (_need_close) close(_fd); | |
372 _fd = -1; | |
373 } | |
374 } | |
375 | |
376 void fdStream::write(const char* s, size_t len) { | |
513
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377 if (_fd != -1) { |
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378 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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379 size_t count = ::write(_fd, s, (int)len); |
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380 } |
0 | 381 update_position(s, len); |
382 } | |
383 | |
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384 rotatingFileStream::~rotatingFileStream() { |
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385 if (_file != NULL) { |
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386 if (_need_close) fclose(_file); |
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387 _file = NULL; |
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388 FREE_C_HEAP_ARRAY(char, _file_name); |
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389 _file_name = NULL; |
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390 } |
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391 } |
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392 |
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393 rotatingFileStream::rotatingFileStream(const char* file_name) { |
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394 _cur_file_num = 0; |
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395 _bytes_writen = 0L; |
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396 _file_name = NEW_C_HEAP_ARRAY(char, strlen(file_name)+10); |
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397 jio_snprintf(_file_name, strlen(file_name)+10, "%s.%d", file_name, _cur_file_num); |
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398 _file = fopen(_file_name, "w"); |
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399 _need_close = true; |
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400 } |
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401 |
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402 rotatingFileStream::rotatingFileStream(const char* file_name, const char* opentype) { |
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403 _cur_file_num = 0; |
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404 _bytes_writen = 0L; |
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405 _file_name = NEW_C_HEAP_ARRAY(char, strlen(file_name)+10); |
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406 jio_snprintf(_file_name, strlen(file_name)+10, "%s.%d", file_name, _cur_file_num); |
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407 _file = fopen(_file_name, opentype); |
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408 _need_close = true; |
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409 } |
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410 |
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411 void rotatingFileStream::write(const char* s, size_t len) { |
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412 if (_file != NULL) { |
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413 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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414 size_t count = fwrite(s, 1, len, _file); |
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415 Atomic::add((jlong)count, &_bytes_writen); |
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416 } |
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417 update_position(s, len); |
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418 } |
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419 |
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420 // rotate_log must be called from VMThread at safepoint. In case need change parameters |
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421 // for gc log rotation from thread other than VMThread, a sub type of VM_Operation |
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422 // should be created and be submitted to VMThread's operation queue. DO NOT call this |
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423 // function directly. Currently, it is safe to rotate log at safepoint through VMThread. |
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424 // That is, no mutator threads and concurrent GC threads run parallel with VMThread to |
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425 // write to gc log file at safepoint. If in future, changes made for mutator threads or |
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426 // concurrent GC threads to run parallel with VMThread at safepoint, write and rotate_log |
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427 // must be synchronized. |
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428 void rotatingFileStream::rotate_log() { |
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429 if (_bytes_writen < (jlong)GCLogFileSize) return; |
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430 #ifdef ASSERT |
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431 Thread *thread = Thread::current(); |
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432 assert(thread == NULL || |
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433 (thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()), |
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434 "Must be VMThread at safepoint"); |
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435 #endif |
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436 if (NumberOfGCLogFiles == 1) { |
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437 // rotate in same file |
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438 rewind(); |
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439 _bytes_writen = 0L; |
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440 return; |
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441 } |
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442 |
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443 // rotate file in names file.0, file.1, file.2, ..., file.<MaxGCLogFileNumbers-1> |
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444 // close current file, rotate to next file |
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445 if (_file != NULL) { |
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446 _cur_file_num ++; |
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447 if (_cur_file_num >= NumberOfGCLogFiles) _cur_file_num = 0; |
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448 jio_snprintf(_file_name, strlen(Arguments::gc_log_filename()) + 10, "%s.%d", |
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449 Arguments::gc_log_filename(), _cur_file_num); |
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450 fclose(_file); |
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451 _file = NULL; |
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452 } |
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453 _file = fopen(_file_name, "w"); |
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454 if (_file != NULL) { |
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455 _bytes_writen = 0L; |
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456 _need_close = true; |
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457 } else { |
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458 tty->print_cr("failed to open rotation log file %s due to %s\n", |
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459 _file_name, strerror(errno)); |
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460 _need_close = false; |
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461 } |
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462 } |
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463 |
0 | 464 defaultStream* defaultStream::instance = NULL; |
465 int defaultStream::_output_fd = 1; | |
466 int defaultStream::_error_fd = 2; | |
467 FILE* defaultStream::_output_stream = stdout; | |
468 FILE* defaultStream::_error_stream = stderr; | |
469 | |
470 #define LOG_MAJOR_VERSION 160 | |
471 #define LOG_MINOR_VERSION 1 | |
472 | |
473 void defaultStream::init() { | |
474 _inited = true; | |
475 if (LogVMOutput || LogCompilation) { | |
476 init_log(); | |
477 } | |
478 } | |
479 | |
480 bool defaultStream::has_log_file() { | |
481 // lazily create log file (at startup, LogVMOutput is false even | |
482 // if +LogVMOutput is used, because the flags haven't been parsed yet) | |
483 // For safer printing during fatal error handling, do not init logfile | |
484 // if a VM error has been reported. | |
485 if (!_inited && !is_error_reported()) init(); | |
486 return _log_file != NULL; | |
487 } | |
488 | |
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489 static const char* make_log_name(const char* log_name, const char* force_directory) { |
0 | 490 const char* basename = log_name; |
491 char file_sep = os::file_separator()[0]; | |
492 const char* cp; | |
493 for (cp = log_name; *cp != '\0'; cp++) { | |
494 if (*cp == '/' || *cp == file_sep) { | |
495 basename = cp+1; | |
496 } | |
497 } | |
498 const char* nametail = log_name; | |
499 | |
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500 // Compute buffer length |
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501 size_t buffer_length; |
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502 if (force_directory != NULL) { |
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503 buffer_length = strlen(force_directory) + strlen(os::file_separator()) + |
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504 strlen(basename) + 1; |
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505 } else { |
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506 buffer_length = strlen(log_name) + 1; |
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507 } |
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508 |
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509 const char* star = strchr(basename, '*'); |
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510 int star_pos = (star == NULL) ? -1 : (star - nametail); |
2400
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511 int skip = 1; |
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512 if (star == NULL) { |
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513 // Try %p |
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514 star = strstr(basename, "%p"); |
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515 if (star != NULL) { |
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516 skip = 2; |
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517 } |
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518 } |
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519 star_pos = (star == NULL) ? -1 : (star - nametail); |
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520 |
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521 char pid[32]; |
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522 if (star_pos >= 0) { |
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523 jio_snprintf(pid, sizeof(pid), "%u", os::current_process_id()); |
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524 buffer_length += strlen(pid); |
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525 } |
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526 |
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527 // Create big enough buffer. |
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528 char *buf = NEW_C_HEAP_ARRAY(char, buffer_length); |
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529 |
0 | 530 strcpy(buf, ""); |
531 if (force_directory != NULL) { | |
532 strcat(buf, force_directory); | |
533 strcat(buf, os::file_separator()); | |
534 nametail = basename; // completely skip directory prefix | |
535 } | |
536 | |
537 if (star_pos >= 0) { | |
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538 // convert foo*bar.log or foo%pbar.log to foo123bar.log |
0 | 539 int buf_pos = (int) strlen(buf); |
540 strncpy(&buf[buf_pos], nametail, star_pos); | |
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541 strcpy(&buf[buf_pos + star_pos], pid); |
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542 nametail += star_pos + skip; // skip prefix and pid format |
0 | 543 } |
544 | |
545 strcat(buf, nametail); // append rest of name, or all of name | |
546 return buf; | |
547 } | |
548 | |
549 void defaultStream::init_log() { | |
550 // %%% Need a MutexLocker? | |
551 const char* log_name = LogFile != NULL ? LogFile : "hotspot.log"; | |
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552 const char* try_name = make_log_name(log_name, NULL); |
0 | 553 fileStream* file = new(ResourceObj::C_HEAP) fileStream(try_name); |
554 if (!file->is_open()) { | |
555 // Try again to open the file. | |
556 char warnbuf[O_BUFLEN*2]; | |
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557 jio_snprintf(warnbuf, sizeof(warnbuf), |
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558 "Warning: Cannot open log file: %s\n", try_name); |
0 | 559 // Note: This feature is for maintainer use only. No need for L10N. |
560 jio_print(warnbuf); | |
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561 FREE_C_HEAP_ARRAY(char, try_name); |
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562 try_name = make_log_name("hs_pid%p.log", os::get_temp_directory()); |
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563 jio_snprintf(warnbuf, sizeof(warnbuf), |
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564 "Warning: Forcing option -XX:LogFile=%s\n", try_name); |
0 | 565 jio_print(warnbuf); |
566 delete file; | |
567 file = new(ResourceObj::C_HEAP) fileStream(try_name); | |
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568 FREE_C_HEAP_ARRAY(char, try_name); |
0 | 569 } |
570 if (file->is_open()) { | |
571 _log_file = file; | |
572 xmlStream* xs = new(ResourceObj::C_HEAP) xmlStream(file); | |
573 _outer_xmlStream = xs; | |
574 if (this == tty) xtty = xs; | |
575 // Write XML header. | |
576 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>"); | |
577 // (For now, don't bother to issue a DTD for this private format.) | |
578 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); | |
579 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if | |
580 // we ever get round to introduce that method on the os class | |
581 xs->head("hotspot_log version='%d %d'" | |
582 " process='%d' time_ms='"INT64_FORMAT"'", | |
583 LOG_MAJOR_VERSION, LOG_MINOR_VERSION, | |
584 os::current_process_id(), time_ms); | |
585 // Write VM version header immediately. | |
586 xs->head("vm_version"); | |
587 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); | |
588 xs->tail("name"); | |
589 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); | |
590 xs->tail("release"); | |
591 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); | |
592 xs->tail("info"); | |
593 xs->tail("vm_version"); | |
594 // Record information about the command-line invocation. | |
595 xs->head("vm_arguments"); // Cf. Arguments::print_on() | |
596 if (Arguments::num_jvm_flags() > 0) { | |
597 xs->head("flags"); | |
598 Arguments::print_jvm_flags_on(xs->text()); | |
599 xs->tail("flags"); | |
600 } | |
601 if (Arguments::num_jvm_args() > 0) { | |
602 xs->head("args"); | |
603 Arguments::print_jvm_args_on(xs->text()); | |
604 xs->tail("args"); | |
605 } | |
606 if (Arguments::java_command() != NULL) { | |
607 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); | |
608 xs->tail("command"); | |
609 } | |
610 if (Arguments::sun_java_launcher() != NULL) { | |
611 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); | |
612 xs->tail("launcher"); | |
613 } | |
614 if (Arguments::system_properties() != NULL) { | |
615 xs->head("properties"); | |
616 // Print it as a java-style property list. | |
617 // System properties don't generally contain newlines, so don't bother with unparsing. | |
618 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
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619 xs->text()->print(p->key() ? p->key() : ""); |
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620 xs->text()->print("="); |
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621 xs->text()->print_cr(p->value() ? p->value() : ""); |
0 | 622 } |
623 xs->tail("properties"); | |
624 } | |
625 xs->tail("vm_arguments"); | |
626 // tty output per se is grouped under the <tty>...</tty> element. | |
627 xs->head("tty"); | |
628 // All further non-markup text gets copied to the tty: | |
629 xs->_text = this; // requires friend declaration! | |
630 } else { | |
631 delete(file); | |
632 // and leave xtty as NULL | |
633 LogVMOutput = false; | |
634 DisplayVMOutput = true; | |
635 LogCompilation = false; | |
636 } | |
637 } | |
638 | |
639 // finish_log() is called during normal VM shutdown. finish_log_on_error() is | |
640 // called by ostream_abort() after a fatal error. | |
641 // | |
642 void defaultStream::finish_log() { | |
643 xmlStream* xs = _outer_xmlStream; | |
644 xs->done("tty"); | |
645 | |
646 // Other log forks are appended here, at the End of Time: | |
647 CompileLog::finish_log(xs->out()); // write compile logging, if any, now | |
648 | |
649 xs->done("hotspot_log"); | |
650 xs->flush(); | |
651 | |
652 fileStream* file = _log_file; | |
653 _log_file = NULL; | |
654 | |
655 delete _outer_xmlStream; | |
656 _outer_xmlStream = NULL; | |
657 | |
658 file->flush(); | |
659 delete file; | |
660 } | |
661 | |
662 void defaultStream::finish_log_on_error(char *buf, int buflen) { | |
663 xmlStream* xs = _outer_xmlStream; | |
664 | |
665 if (xs && xs->out()) { | |
666 | |
667 xs->done_raw("tty"); | |
668 | |
669 // Other log forks are appended here, at the End of Time: | |
670 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now | |
671 | |
672 xs->done_raw("hotspot_log"); | |
673 xs->flush(); | |
674 | |
675 fileStream* file = _log_file; | |
676 _log_file = NULL; | |
677 _outer_xmlStream = NULL; | |
678 | |
679 if (file) { | |
680 file->flush(); | |
681 | |
682 // Can't delete or close the file because delete and fclose aren't | |
683 // async-safe. We are about to die, so leave it to the kernel. | |
684 // delete file; | |
685 } | |
686 } | |
687 } | |
688 | |
689 intx defaultStream::hold(intx writer_id) { | |
690 bool has_log = has_log_file(); // check before locking | |
691 if (// impossible, but who knows? | |
692 writer_id == NO_WRITER || | |
693 | |
694 // bootstrap problem | |
695 tty_lock == NULL || | |
696 | |
697 // can't grab a lock or call Thread::current() if TLS isn't initialized | |
698 ThreadLocalStorage::thread() == NULL || | |
699 | |
700 // developer hook | |
701 !SerializeVMOutput || | |
702 | |
703 // VM already unhealthy | |
704 is_error_reported() || | |
705 | |
706 // safepoint == global lock (for VM only) | |
707 (SafepointSynchronize::is_synchronizing() && | |
708 Thread::current()->is_VM_thread()) | |
709 ) { | |
710 // do not attempt to lock unless we know the thread and the VM is healthy | |
711 return NO_WRITER; | |
712 } | |
713 if (_writer == writer_id) { | |
714 // already held, no need to re-grab the lock | |
715 return NO_WRITER; | |
716 } | |
717 tty_lock->lock_without_safepoint_check(); | |
718 // got the lock | |
719 if (writer_id != _last_writer) { | |
720 if (has_log) { | |
721 _log_file->bol(); | |
722 // output a hint where this output is coming from: | |
723 _log_file->print_cr("<writer thread='"INTX_FORMAT"'/>", writer_id); | |
724 } | |
725 _last_writer = writer_id; | |
726 } | |
727 _writer = writer_id; | |
728 return writer_id; | |
729 } | |
730 | |
731 void defaultStream::release(intx holder) { | |
732 if (holder == NO_WRITER) { | |
733 // nothing to release: either a recursive lock, or we scribbled (too bad) | |
734 return; | |
735 } | |
736 if (_writer != holder) { | |
737 return; // already unlocked, perhaps via break_tty_lock_for_safepoint | |
738 } | |
739 _writer = NO_WRITER; | |
740 tty_lock->unlock(); | |
741 } | |
742 | |
743 | |
744 // Yuck: jio_print does not accept char*/len. | |
745 static void call_jio_print(const char* s, size_t len) { | |
746 char buffer[O_BUFLEN+100]; | |
747 if (len > sizeof(buffer)-1) { | |
748 warning("increase O_BUFLEN in ostream.cpp -- output truncated"); | |
749 len = sizeof(buffer)-1; | |
750 } | |
751 strncpy(buffer, s, len); | |
752 buffer[len] = '\0'; | |
753 jio_print(buffer); | |
754 } | |
755 | |
756 | |
757 void defaultStream::write(const char* s, size_t len) { | |
758 intx thread_id = os::current_thread_id(); | |
759 intx holder = hold(thread_id); | |
760 | |
761 if (DisplayVMOutput && | |
762 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { | |
763 // print to output stream. It can be redirected by a vfprintf hook | |
764 if (s[len] == '\0') { | |
765 jio_print(s); | |
766 } else { | |
767 call_jio_print(s, len); | |
768 } | |
769 } | |
770 | |
771 // print to log file | |
772 if (has_log_file()) { | |
773 int nl0 = _newlines; | |
774 xmlTextStream::write(s, len); | |
775 // flush the log file too, if there were any newlines | |
776 if (nl0 != _newlines){ | |
777 flush(); | |
778 } | |
779 } else { | |
780 update_position(s, len); | |
781 } | |
782 | |
783 release(holder); | |
784 } | |
785 | |
786 intx ttyLocker::hold_tty() { | |
787 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; | |
788 intx thread_id = os::current_thread_id(); | |
789 return defaultStream::instance->hold(thread_id); | |
790 } | |
791 | |
792 void ttyLocker::release_tty(intx holder) { | |
793 if (holder == defaultStream::NO_WRITER) return; | |
794 defaultStream::instance->release(holder); | |
795 } | |
796 | |
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797 bool ttyLocker::release_tty_if_locked() { |
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798 intx thread_id = os::current_thread_id(); |
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799 if (defaultStream::instance->writer() == thread_id) { |
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800 // release the lock and return true so callers know if was |
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801 // previously held. |
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802 release_tty(thread_id); |
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803 return true; |
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804 } |
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805 return false; |
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806 } |
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807 |
0 | 808 void ttyLocker::break_tty_lock_for_safepoint(intx holder) { |
809 if (defaultStream::instance != NULL && | |
810 defaultStream::instance->writer() == holder) { | |
811 if (xtty != NULL) { | |
812 xtty->print_cr("<!-- safepoint while printing -->"); | |
813 } | |
814 defaultStream::instance->release(holder); | |
815 } | |
816 // (else there was no lock to break) | |
817 } | |
818 | |
819 void ostream_init() { | |
820 if (defaultStream::instance == NULL) { | |
821 defaultStream::instance = new(ResourceObj::C_HEAP) defaultStream(); | |
822 tty = defaultStream::instance; | |
823 | |
824 // We want to ensure that time stamps in GC logs consider time 0 | |
825 // the time when the JVM is initialized, not the first time we ask | |
826 // for a time stamp. So, here, we explicitly update the time stamp | |
827 // of tty. | |
828 tty->time_stamp().update_to(1); | |
829 } | |
830 } | |
831 | |
832 void ostream_init_log() { | |
833 // For -Xloggc:<file> option - called in runtime/thread.cpp | |
834 // Note : this must be called AFTER ostream_init() | |
835 | |
836 gclog_or_tty = tty; // default to tty | |
837 if (Arguments::gc_log_filename() != NULL) { | |
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838 fileStream * gclog = UseGCLogFileRotation ? |
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839 new(ResourceObj::C_HEAP) |
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840 rotatingFileStream(Arguments::gc_log_filename()) : |
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841 new(ResourceObj::C_HEAP) |
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842 fileStream(Arguments::gc_log_filename()); |
0 | 843 if (gclog->is_open()) { |
844 // now we update the time stamp of the GC log to be synced up | |
845 // with tty. | |
846 gclog->time_stamp().update_to(tty->time_stamp().ticks()); | |
847 } | |
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848 gclog_or_tty = gclog; |
0 | 849 } |
850 | |
851 // If we haven't lazily initialized the logfile yet, do it now, | |
852 // to avoid the possibility of lazy initialization during a VM | |
853 // crash, which can affect the stability of the fatal error handler. | |
854 defaultStream::instance->has_log_file(); | |
855 } | |
856 | |
857 // ostream_exit() is called during normal VM exit to finish log files, flush | |
858 // output and free resource. | |
859 void ostream_exit() { | |
860 static bool ostream_exit_called = false; | |
861 if (ostream_exit_called) return; | |
862 ostream_exit_called = true; | |
863 if (gclog_or_tty != tty) { | |
864 delete gclog_or_tty; | |
865 } | |
866 { | |
867 // we temporaly disable PrintMallocFree here | |
868 // as otherwise it'll lead to using of almost deleted | |
869 // tty or defaultStream::instance in logging facility | |
870 // of HeapFree(), see 6391258 | |
871 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) | |
872 if (tty != defaultStream::instance) { | |
873 delete tty; | |
874 } | |
875 if (defaultStream::instance != NULL) { | |
876 delete defaultStream::instance; | |
877 } | |
878 } | |
879 tty = NULL; | |
880 xtty = NULL; | |
881 gclog_or_tty = NULL; | |
882 defaultStream::instance = NULL; | |
883 } | |
884 | |
885 // ostream_abort() is called by os::abort() when VM is about to die. | |
886 void ostream_abort() { | |
887 // Here we can't delete gclog_or_tty and tty, just flush their output | |
888 if (gclog_or_tty) gclog_or_tty->flush(); | |
889 if (tty) tty->flush(); | |
890 | |
891 if (defaultStream::instance != NULL) { | |
892 static char buf[4096]; | |
893 defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); | |
894 } | |
895 } | |
896 | |
897 staticBufferStream::staticBufferStream(char* buffer, size_t buflen, | |
898 outputStream *outer_stream) { | |
899 _buffer = buffer; | |
900 _buflen = buflen; | |
901 _outer_stream = outer_stream; | |
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903 _stamp.update_to(1); |
0 | 904 } |
905 | |
906 void staticBufferStream::write(const char* c, size_t len) { | |
907 _outer_stream->print_raw(c, (int)len); | |
908 } | |
909 | |
910 void staticBufferStream::flush() { | |
911 _outer_stream->flush(); | |
912 } | |
913 | |
914 void staticBufferStream::print(const char* format, ...) { | |
915 va_list ap; | |
916 va_start(ap, format); | |
917 size_t len; | |
918 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); | |
919 write(str, len); | |
920 va_end(ap); | |
921 } | |
922 | |
923 void staticBufferStream::print_cr(const char* format, ...) { | |
924 va_list ap; | |
925 va_start(ap, format); | |
926 size_t len; | |
927 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); | |
928 write(str, len); | |
929 va_end(ap); | |
930 } | |
931 | |
932 void staticBufferStream::vprint(const char *format, va_list argptr) { | |
933 size_t len; | |
934 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); | |
935 write(str, len); | |
936 } | |
937 | |
938 void staticBufferStream::vprint_cr(const char* format, va_list argptr) { | |
939 size_t len; | |
940 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); | |
941 write(str, len); | |
942 } | |
943 | |
222 | 944 bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { |
0 | 945 buffer_length = initial_size; |
946 buffer = NEW_C_HEAP_ARRAY(char, buffer_length); | |
947 buffer_pos = 0; | |
948 buffer_fixed = false; | |
222 | 949 buffer_max = bufmax; |
0 | 950 } |
951 | |
222 | 952 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { |
0 | 953 buffer_length = fixed_buffer_size; |
954 buffer = fixed_buffer; | |
955 buffer_pos = 0; | |
956 buffer_fixed = true; | |
222 | 957 buffer_max = bufmax; |
0 | 958 } |
959 | |
960 void bufferedStream::write(const char* s, size_t len) { | |
222 | 961 |
962 if(buffer_pos + len > buffer_max) { | |
963 flush(); | |
964 } | |
965 | |
0 | 966 size_t end = buffer_pos + len; |
967 if (end >= buffer_length) { | |
968 if (buffer_fixed) { | |
969 // if buffer cannot resize, silently truncate | |
970 len = buffer_length - buffer_pos - 1; | |
971 } else { | |
972 // For small overruns, double the buffer. For larger ones, | |
973 // increase to the requested size. | |
974 if (end < buffer_length * 2) { | |
975 end = buffer_length * 2; | |
976 } | |
977 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end); | |
978 buffer_length = end; | |
979 } | |
980 } | |
981 memcpy(buffer + buffer_pos, s, len); | |
982 buffer_pos += len; | |
983 update_position(s, len); | |
984 } | |
985 | |
986 char* bufferedStream::as_string() { | |
987 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
988 strncpy(copy, buffer, buffer_pos); | |
989 copy[buffer_pos] = 0; // terminating null | |
990 return copy; | |
991 } | |
992 | |
993 bufferedStream::~bufferedStream() { | |
994 if (!buffer_fixed) { | |
995 FREE_C_HEAP_ARRAY(char, buffer); | |
996 } | |
997 } | |
998 | |
999 #ifndef PRODUCT | |
1000 | |
3960 | 1001 #if defined(SOLARIS) || defined(LINUX) || defined(_ALLBSD_SOURCE) |
0 | 1002 #include <sys/types.h> |
1003 #include <sys/socket.h> | |
1004 #include <netinet/in.h> | |
1005 #include <arpa/inet.h> | |
1006 #endif | |
1007 | |
1008 // Network access | |
222 | 1009 networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { |
0 | 1010 |
1011 _socket = -1; | |
1012 | |
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1013 int result = os::socket(AF_INET, SOCK_STREAM, 0); |
0 | 1014 if (result <= 0) { |
1015 assert(false, "Socket could not be created!"); | |
1016 } else { | |
1017 _socket = result; | |
1018 } | |
1019 } | |
1020 | |
1021 int networkStream::read(char *buf, size_t len) { | |
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1022 return os::recv(_socket, buf, (int)len, 0); |
0 | 1023 } |
1024 | |
1025 void networkStream::flush() { | |
1026 if (size() != 0) { | |
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1027 int result = os::raw_send(_socket, (char *)base(), size(), 0); |
222 | 1028 assert(result != -1, "connection error"); |
1029 assert(result == (int)size(), "didn't send enough data"); | |
0 | 1030 } |
1031 reset(); | |
1032 } | |
1033 | |
1034 networkStream::~networkStream() { | |
1035 close(); | |
1036 } | |
1037 | |
1038 void networkStream::close() { | |
1039 if (_socket != -1) { | |
1040 flush(); | |
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1041 os::socket_close(_socket); |
0 | 1042 _socket = -1; |
1043 } | |
1044 } | |
1045 | |
1046 bool networkStream::connect(const char *ip, short port) { | |
1047 | |
1048 struct sockaddr_in server; | |
1049 server.sin_family = AF_INET; | |
1050 server.sin_port = htons(port); | |
1051 | |
1052 server.sin_addr.s_addr = inet_addr(ip); | |
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1053 if (server.sin_addr.s_addr == (uint32_t)-1) { |
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1054 struct hostent* host = os::get_host_by_name((char*)ip); |
0 | 1055 if (host != NULL) { |
1056 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); | |
1057 } else { | |
1058 return false; | |
1059 } | |
1060 } | |
1061 | |
1062 | |
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1063 int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); |
0 | 1064 return (result >= 0); |
1065 } | |
1066 | |
1067 #endif |