Mercurial > hg > truffle
annotate src/share/vm/utilities/ostream.cpp @ 3767:2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
Summary: supply optinal flags to realize gc log rotation
Reviewed-by: ysr, jwilhelm
| author | minqi |
|---|---|
| date | Fri, 10 Jun 2011 15:08:36 -0700 |
| parents | 8010c8c623ac |
| children | f08d439fab8c |
| rev | line source |
|---|---|
| 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 | |
| 0 | 42 |
| 43 extern "C" void jio_print(const char* s); // Declarationtion of jvm method | |
| 44 | |
| 45 outputStream::outputStream(int width) { | |
| 46 _width = width; | |
| 47 _position = 0; | |
| 48 _newlines = 0; | |
| 49 _precount = 0; | |
| 50 _indentation = 0; | |
| 51 } | |
| 52 | |
| 53 outputStream::outputStream(int width, bool has_time_stamps) { | |
| 54 _width = width; | |
| 55 _position = 0; | |
| 56 _newlines = 0; | |
| 57 _precount = 0; | |
| 58 _indentation = 0; | |
| 59 if (has_time_stamps) _stamp.update(); | |
| 60 } | |
| 61 | |
| 62 void outputStream::update_position(const char* s, size_t len) { | |
| 63 for (size_t i = 0; i < len; i++) { | |
| 64 char ch = s[i]; | |
| 65 if (ch == '\n') { | |
| 66 _newlines += 1; | |
| 67 _precount += _position + 1; | |
| 68 _position = 0; | |
| 69 } else if (ch == '\t') { | |
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70 int tw = 8 - (_position & 7); |
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71 _position += tw; |
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72 _precount -= tw-1; // invariant: _precount + _position == total count |
| 0 | 73 } else { |
| 74 _position += 1; | |
| 75 } | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 // Execute a vsprintf, using the given buffer if necessary. | |
| 80 // Return a pointer to the formatted string. | |
| 81 const char* outputStream::do_vsnprintf(char* buffer, size_t buflen, | |
| 82 const char* format, va_list ap, | |
| 83 bool add_cr, | |
| 84 size_t& result_len) { | |
| 85 const char* result; | |
| 86 if (add_cr) buflen--; | |
| 87 if (!strchr(format, '%')) { | |
| 88 // constant format string | |
| 89 result = format; | |
| 90 result_len = strlen(result); | |
| 91 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
| 92 } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') { | |
| 93 // trivial copy-through format string | |
| 94 result = va_arg(ap, const char*); | |
| 95 result_len = strlen(result); | |
| 96 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
| 97 } else if (vsnprintf(buffer, buflen, format, ap) >= 0) { | |
| 98 result = buffer; | |
| 99 result_len = strlen(result); | |
| 100 } else { | |
| 101 DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");) | |
| 102 result = buffer; | |
| 103 result_len = buflen - 1; | |
| 104 buffer[result_len] = 0; | |
| 105 } | |
| 106 if (add_cr) { | |
| 107 if (result != buffer) { | |
| 108 strncpy(buffer, result, buflen); | |
| 109 result = buffer; | |
| 110 } | |
| 111 buffer[result_len++] = '\n'; | |
| 112 buffer[result_len] = 0; | |
| 113 } | |
| 114 return result; | |
| 115 } | |
| 116 | |
| 117 void outputStream::print(const char* format, ...) { | |
| 118 char buffer[O_BUFLEN]; | |
| 119 va_list ap; | |
| 120 va_start(ap, format); | |
| 121 size_t len; | |
| 122 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len); | |
| 123 write(str, len); | |
| 124 va_end(ap); | |
| 125 } | |
| 126 | |
| 127 void outputStream::print_cr(const char* format, ...) { | |
| 128 char buffer[O_BUFLEN]; | |
| 129 va_list ap; | |
| 130 va_start(ap, format); | |
| 131 size_t len; | |
| 132 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len); | |
| 133 write(str, len); | |
| 134 va_end(ap); | |
| 135 } | |
| 136 | |
| 137 void outputStream::vprint(const char *format, va_list argptr) { | |
| 138 char buffer[O_BUFLEN]; | |
| 139 size_t len; | |
| 140 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len); | |
| 141 write(str, len); | |
| 142 } | |
| 143 | |
| 144 void outputStream::vprint_cr(const char* format, va_list argptr) { | |
| 145 char buffer[O_BUFLEN]; | |
| 146 size_t len; | |
| 147 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); | |
| 148 write(str, len); | |
| 149 } | |
| 150 | |
| 151 void outputStream::fill_to(int col) { | |
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152 int need_fill = col - position(); |
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153 sp(need_fill); |
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154 } |
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155 |
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156 void outputStream::move_to(int col, int slop, int min_space) { |
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157 if (position() >= col + slop) |
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158 cr(); |
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159 int need_fill = col - position(); |
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160 if (need_fill < min_space) |
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161 need_fill = min_space; |
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162 sp(need_fill); |
| 0 | 163 } |
| 164 | |
| 165 void outputStream::put(char ch) { | |
| 166 assert(ch != 0, "please fix call site"); | |
| 167 char buf[] = { ch, '\0' }; | |
| 168 write(buf, 1); | |
| 169 } | |
| 170 | |
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171 #define SP_USE_TABS false |
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172 |
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173 void outputStream::sp(int count) { |
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174 if (count < 0) return; |
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175 if (SP_USE_TABS && count >= 8) { |
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176 int target = position() + count; |
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177 while (count >= 8) { |
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178 this->write("\t", 1); |
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179 count -= 8; |
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180 } |
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181 count = target - position(); |
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182 } |
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183 while (count > 0) { |
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184 int nw = (count > 8) ? 8 : count; |
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185 this->write(" ", nw); |
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186 count -= nw; |
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187 } |
| 0 | 188 } |
| 189 | |
| 190 void outputStream::cr() { | |
| 191 this->write("\n", 1); | |
| 192 } | |
| 193 | |
| 194 void outputStream::stamp() { | |
| 195 if (! _stamp.is_updated()) { | |
| 196 _stamp.update(); // start at 0 on first call to stamp() | |
| 197 } | |
| 198 | |
| 199 // outputStream::stamp() may get called by ostream_abort(), use snprintf | |
| 200 // to avoid allocating large stack buffer in print(). | |
| 201 char buf[40]; | |
| 202 jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds()); | |
| 203 print_raw(buf); | |
| 204 } | |
| 205 | |
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206 void outputStream::stamp(bool guard, |
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207 const char* prefix, |
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208 const char* suffix) { |
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209 if (!guard) { |
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210 return; |
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211 } |
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212 print_raw(prefix); |
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213 stamp(); |
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214 print_raw(suffix); |
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215 } |
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216 |
| 0 | 217 void outputStream::date_stamp(bool guard, |
| 218 const char* prefix, | |
| 219 const char* suffix) { | |
| 220 if (!guard) { | |
| 221 return; | |
| 222 } | |
| 223 print_raw(prefix); | |
| 224 static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz"; | |
| 225 static const int buffer_length = 32; | |
| 226 char buffer[buffer_length]; | |
| 227 const char* iso8601_result = os::iso8601_time(buffer, buffer_length); | |
| 228 if (iso8601_result != NULL) { | |
| 229 print_raw(buffer); | |
| 230 } else { | |
| 231 print_raw(error_time); | |
| 232 } | |
| 233 print_raw(suffix); | |
| 234 return; | |
| 235 } | |
| 236 | |
| 237 void outputStream::indent() { | |
| 238 while (_position < _indentation) sp(); | |
| 239 } | |
| 240 | |
| 241 void outputStream::print_jlong(jlong value) { | |
| 242 // N.B. Same as INT64_FORMAT | |
| 243 print(os::jlong_format_specifier(), value); | |
| 244 } | |
| 245 | |
| 246 void outputStream::print_julong(julong value) { | |
| 247 // N.B. Same as UINT64_FORMAT | |
| 248 print(os::julong_format_specifier(), value); | |
| 249 } | |
| 250 | |
| 251 stringStream::stringStream(size_t initial_size) : outputStream() { | |
| 252 buffer_length = initial_size; | |
| 253 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); | |
| 254 buffer_pos = 0; | |
| 255 buffer_fixed = false; | |
| 256 } | |
| 257 | |
| 258 // useful for output to fixed chunks of memory, such as performance counters | |
| 259 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { | |
| 260 buffer_length = fixed_buffer_size; | |
| 261 buffer = fixed_buffer; | |
| 262 buffer_pos = 0; | |
| 263 buffer_fixed = true; | |
| 264 } | |
| 265 | |
| 266 void stringStream::write(const char* s, size_t len) { | |
| 267 size_t write_len = len; // number of non-null bytes to write | |
| 268 size_t end = buffer_pos + len + 1; // position after write and final '\0' | |
| 269 if (end > buffer_length) { | |
| 270 if (buffer_fixed) { | |
| 271 // if buffer cannot resize, silently truncate | |
| 272 end = buffer_length; | |
| 273 write_len = end - buffer_pos - 1; // leave room for the final '\0' | |
| 274 } else { | |
| 275 // For small overruns, double the buffer. For larger ones, | |
| 276 // increase to the requested size. | |
| 277 if (end < buffer_length * 2) { | |
| 278 end = buffer_length * 2; | |
| 279 } | |
| 280 char* oldbuf = buffer; | |
| 281 buffer = NEW_RESOURCE_ARRAY(char, end); | |
| 282 strncpy(buffer, oldbuf, buffer_pos); | |
| 283 buffer_length = end; | |
| 284 } | |
| 285 } | |
| 286 // invariant: buffer is always null-terminated | |
| 287 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); | |
| 288 buffer[buffer_pos + write_len] = 0; | |
| 289 strncpy(buffer + buffer_pos, s, write_len); | |
| 290 buffer_pos += write_len; | |
| 291 | |
| 292 // Note that the following does not depend on write_len. | |
| 293 // This means that position and count get updated | |
| 294 // even when overflow occurs. | |
| 295 update_position(s, len); | |
| 296 } | |
| 297 | |
| 298 char* stringStream::as_string() { | |
| 299 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
| 300 strncpy(copy, buffer, buffer_pos); | |
| 301 copy[buffer_pos] = 0; // terminating null | |
| 302 return copy; | |
| 303 } | |
| 304 | |
| 305 stringStream::~stringStream() {} | |
| 306 | |
| 307 xmlStream* xtty; | |
| 308 outputStream* tty; | |
| 309 outputStream* gclog_or_tty; | |
| 310 extern Mutex* tty_lock; | |
| 311 | |
| 312 fileStream::fileStream(const char* file_name) { | |
| 313 _file = fopen(file_name, "w"); | |
| 314 _need_close = true; | |
| 315 } | |
| 316 | |
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317 fileStream::fileStream(const char* file_name, const char* opentype) { |
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318 _file = fopen(file_name, opentype); |
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319 _need_close = true; |
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320 } |
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321 |
| 0 | 322 void fileStream::write(const char* s, size_t len) { |
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323 if (_file != NULL) { |
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324 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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325 size_t count = fwrite(s, 1, len, _file); |
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326 } |
| 0 | 327 update_position(s, len); |
| 328 } | |
| 329 | |
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330 long fileStream::fileSize() { |
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331 long size = -1; |
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332 if (_file != NULL) { |
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333 long pos = ::ftell(_file); |
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334 if (::fseek(_file, 0, SEEK_END) == 0) { |
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335 size = ::ftell(_file); |
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336 } |
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337 ::fseek(_file, pos, SEEK_SET); |
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338 } |
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339 return size; |
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340 } |
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341 |
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342 char* fileStream::readln(char *data, int count ) { |
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343 char * ret = ::fgets(data, count, _file); |
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344 //Get rid of annoying \n char |
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345 data[::strlen(data)-1] = '\0'; |
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346 return ret; |
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347 } |
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348 |
| 0 | 349 fileStream::~fileStream() { |
| 350 if (_file != NULL) { | |
| 351 if (_need_close) fclose(_file); | |
|
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352 _file = NULL; |
| 0 | 353 } |
| 354 } | |
| 355 | |
| 356 void fileStream::flush() { | |
| 357 fflush(_file); | |
| 358 } | |
| 359 | |
| 360 fdStream::fdStream(const char* file_name) { | |
| 361 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 362 _need_close = true; | |
| 363 } | |
| 364 | |
| 365 fdStream::~fdStream() { | |
| 366 if (_fd != -1) { | |
| 367 if (_need_close) close(_fd); | |
| 368 _fd = -1; | |
| 369 } | |
| 370 } | |
| 371 | |
| 372 void fdStream::write(const char* s, size_t len) { | |
|
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373 if (_fd != -1) { |
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374 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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375 size_t count = ::write(_fd, s, (int)len); |
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376 } |
| 0 | 377 update_position(s, len); |
| 378 } | |
| 379 | |
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380 rotatingFileStream::~rotatingFileStream() { |
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381 if (_file != NULL) { |
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382 if (_need_close) fclose(_file); |
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383 _file = NULL; |
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384 FREE_C_HEAP_ARRAY(char, _file_name); |
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385 _file_name = NULL; |
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386 } |
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387 } |
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388 |
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389 rotatingFileStream::rotatingFileStream(const char* file_name) { |
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390 _cur_file_num = 0; |
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391 _bytes_writen = 0L; |
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392 _file_name = NEW_C_HEAP_ARRAY(char, strlen(file_name)+10); |
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393 jio_snprintf(_file_name, strlen(file_name)+10, "%s.%d", file_name, _cur_file_num); |
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394 _file = fopen(_file_name, "w"); |
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395 _need_close = true; |
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396 } |
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397 |
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398 rotatingFileStream::rotatingFileStream(const char* file_name, const char* opentype) { |
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399 _cur_file_num = 0; |
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400 _bytes_writen = 0L; |
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401 _file_name = NEW_C_HEAP_ARRAY(char, strlen(file_name)+10); |
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402 jio_snprintf(_file_name, strlen(file_name)+10, "%s.%d", file_name, _cur_file_num); |
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403 _file = fopen(_file_name, opentype); |
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404 _need_close = true; |
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405 } |
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406 |
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407 void rotatingFileStream::write(const char* s, size_t len) { |
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408 if (_file != NULL) { |
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409 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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410 size_t count = fwrite(s, 1, len, _file); |
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411 Atomic::add((jlong)count, &_bytes_writen); |
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412 } |
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413 update_position(s, len); |
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414 } |
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415 |
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416 // rotate_log must be called from VMThread at safepoint. In case need change parameters |
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417 // for gc log rotation from thread other than VMThread, a sub type of VM_Operation |
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418 // should be created and be submitted to VMThread's operation queue. DO NOT call this |
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419 // function directly. Currently, it is safe to rotate log at safepoint through VMThread. |
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420 // That is, no mutator threads and concurrent GC threads run parallel with VMThread to |
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421 // write to gc log file at safepoint. If in future, changes made for mutator threads or |
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422 // concurrent GC threads to run parallel with VMThread at safepoint, write and rotate_log |
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423 // must be synchronized. |
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424 void rotatingFileStream::rotate_log() { |
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425 if (_bytes_writen < (jlong)GCLogFileSize) return; |
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426 #ifdef ASSERT |
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427 Thread *thread = Thread::current(); |
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428 assert(thread == NULL || |
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429 (thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()), |
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430 "Must be VMThread at safepoint"); |
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431 #endif |
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432 if (NumberOfGCLogFiles == 1) { |
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433 // rotate in same file |
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434 rewind(); |
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435 _bytes_writen = 0L; |
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436 return; |
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437 } |
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438 |
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439 // rotate file in names file.0, file.1, file.2, ..., file.<MaxGCLogFileNumbers-1> |
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440 // close current file, rotate to next file |
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441 if (_file != NULL) { |
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442 _cur_file_num ++; |
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443 if (_cur_file_num >= NumberOfGCLogFiles) _cur_file_num = 0; |
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444 jio_snprintf(_file_name, strlen(Arguments::gc_log_filename()) + 10, "%s.%d", |
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445 Arguments::gc_log_filename(), _cur_file_num); |
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446 fclose(_file); |
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447 _file = NULL; |
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448 } |
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449 _file = fopen(_file_name, "w"); |
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450 if (_file != NULL) { |
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451 _bytes_writen = 0L; |
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452 _need_close = true; |
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453 } else { |
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454 tty->print_cr("failed to open rotation log file %s due to %s\n", |
|
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455 _file_name, strerror(errno)); |
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456 _need_close = false; |
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457 } |
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458 } |
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459 |
| 0 | 460 defaultStream* defaultStream::instance = NULL; |
| 461 int defaultStream::_output_fd = 1; | |
| 462 int defaultStream::_error_fd = 2; | |
| 463 FILE* defaultStream::_output_stream = stdout; | |
| 464 FILE* defaultStream::_error_stream = stderr; | |
| 465 | |
| 466 #define LOG_MAJOR_VERSION 160 | |
| 467 #define LOG_MINOR_VERSION 1 | |
| 468 | |
| 469 void defaultStream::init() { | |
| 470 _inited = true; | |
| 471 if (LogVMOutput || LogCompilation) { | |
| 472 init_log(); | |
| 473 } | |
| 474 } | |
| 475 | |
| 476 bool defaultStream::has_log_file() { | |
| 477 // lazily create log file (at startup, LogVMOutput is false even | |
| 478 // if +LogVMOutput is used, because the flags haven't been parsed yet) | |
| 479 // For safer printing during fatal error handling, do not init logfile | |
| 480 // if a VM error has been reported. | |
| 481 if (!_inited && !is_error_reported()) init(); | |
| 482 return _log_file != NULL; | |
| 483 } | |
| 484 | |
|
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485 static const char* make_log_name(const char* log_name, const char* force_directory) { |
| 0 | 486 const char* basename = log_name; |
| 487 char file_sep = os::file_separator()[0]; | |
| 488 const char* cp; | |
| 489 for (cp = log_name; *cp != '\0'; cp++) { | |
| 490 if (*cp == '/' || *cp == file_sep) { | |
| 491 basename = cp+1; | |
| 492 } | |
| 493 } | |
| 494 const char* nametail = log_name; | |
| 495 | |
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496 // Compute buffer length |
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497 size_t buffer_length; |
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498 if (force_directory != NULL) { |
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499 buffer_length = strlen(force_directory) + strlen(os::file_separator()) + |
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500 strlen(basename) + 1; |
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501 } else { |
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502 buffer_length = strlen(log_name) + 1; |
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503 } |
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504 |
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505 const char* star = strchr(basename, '*'); |
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506 int star_pos = (star == NULL) ? -1 : (star - nametail); |
|
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507 int skip = 1; |
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508 if (star == NULL) { |
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509 // Try %p |
|
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510 star = strstr(basename, "%p"); |
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511 if (star != NULL) { |
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512 skip = 2; |
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513 } |
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514 } |
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515 star_pos = (star == NULL) ? -1 : (star - nametail); |
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516 |
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517 char pid[32]; |
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518 if (star_pos >= 0) { |
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519 jio_snprintf(pid, sizeof(pid), "%u", os::current_process_id()); |
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520 buffer_length += strlen(pid); |
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521 } |
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522 |
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523 // Create big enough buffer. |
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524 char *buf = NEW_C_HEAP_ARRAY(char, buffer_length); |
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525 |
| 0 | 526 strcpy(buf, ""); |
| 527 if (force_directory != NULL) { | |
| 528 strcat(buf, force_directory); | |
| 529 strcat(buf, os::file_separator()); | |
| 530 nametail = basename; // completely skip directory prefix | |
| 531 } | |
| 532 | |
| 533 if (star_pos >= 0) { | |
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534 // convert foo*bar.log or foo%pbar.log to foo123bar.log |
| 0 | 535 int buf_pos = (int) strlen(buf); |
| 536 strncpy(&buf[buf_pos], nametail, star_pos); | |
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537 strcpy(&buf[buf_pos + star_pos], pid); |
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538 nametail += star_pos + skip; // skip prefix and pid format |
| 0 | 539 } |
| 540 | |
| 541 strcat(buf, nametail); // append rest of name, or all of name | |
| 542 return buf; | |
| 543 } | |
| 544 | |
| 545 void defaultStream::init_log() { | |
| 546 // %%% Need a MutexLocker? | |
| 547 const char* log_name = LogFile != NULL ? LogFile : "hotspot.log"; | |
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548 const char* try_name = make_log_name(log_name, NULL); |
| 0 | 549 fileStream* file = new(ResourceObj::C_HEAP) fileStream(try_name); |
| 550 if (!file->is_open()) { | |
| 551 // Try again to open the file. | |
| 552 char warnbuf[O_BUFLEN*2]; | |
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553 jio_snprintf(warnbuf, sizeof(warnbuf), |
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554 "Warning: Cannot open log file: %s\n", try_name); |
| 0 | 555 // Note: This feature is for maintainer use only. No need for L10N. |
| 556 jio_print(warnbuf); | |
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557 FREE_C_HEAP_ARRAY(char, try_name); |
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558 try_name = make_log_name("hs_pid%p.log", os::get_temp_directory()); |
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559 jio_snprintf(warnbuf, sizeof(warnbuf), |
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560 "Warning: Forcing option -XX:LogFile=%s\n", try_name); |
| 0 | 561 jio_print(warnbuf); |
| 562 delete file; | |
| 563 file = new(ResourceObj::C_HEAP) fileStream(try_name); | |
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564 FREE_C_HEAP_ARRAY(char, try_name); |
| 0 | 565 } |
| 566 if (file->is_open()) { | |
| 567 _log_file = file; | |
| 568 xmlStream* xs = new(ResourceObj::C_HEAP) xmlStream(file); | |
| 569 _outer_xmlStream = xs; | |
| 570 if (this == tty) xtty = xs; | |
| 571 // Write XML header. | |
| 572 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>"); | |
| 573 // (For now, don't bother to issue a DTD for this private format.) | |
| 574 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); | |
| 575 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if | |
| 576 // we ever get round to introduce that method on the os class | |
| 577 xs->head("hotspot_log version='%d %d'" | |
| 578 " process='%d' time_ms='"INT64_FORMAT"'", | |
| 579 LOG_MAJOR_VERSION, LOG_MINOR_VERSION, | |
| 580 os::current_process_id(), time_ms); | |
| 581 // Write VM version header immediately. | |
| 582 xs->head("vm_version"); | |
| 583 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); | |
| 584 xs->tail("name"); | |
| 585 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); | |
| 586 xs->tail("release"); | |
| 587 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); | |
| 588 xs->tail("info"); | |
| 589 xs->tail("vm_version"); | |
| 590 // Record information about the command-line invocation. | |
| 591 xs->head("vm_arguments"); // Cf. Arguments::print_on() | |
| 592 if (Arguments::num_jvm_flags() > 0) { | |
| 593 xs->head("flags"); | |
| 594 Arguments::print_jvm_flags_on(xs->text()); | |
| 595 xs->tail("flags"); | |
| 596 } | |
| 597 if (Arguments::num_jvm_args() > 0) { | |
| 598 xs->head("args"); | |
| 599 Arguments::print_jvm_args_on(xs->text()); | |
| 600 xs->tail("args"); | |
| 601 } | |
| 602 if (Arguments::java_command() != NULL) { | |
| 603 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); | |
| 604 xs->tail("command"); | |
| 605 } | |
| 606 if (Arguments::sun_java_launcher() != NULL) { | |
| 607 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); | |
| 608 xs->tail("launcher"); | |
| 609 } | |
| 610 if (Arguments::system_properties() != NULL) { | |
| 611 xs->head("properties"); | |
| 612 // Print it as a java-style property list. | |
| 613 // System properties don't generally contain newlines, so don't bother with unparsing. | |
| 614 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
| 615 xs->text()->print_cr("%s=%s", p->key(), p->value()); | |
| 616 } | |
| 617 xs->tail("properties"); | |
| 618 } | |
| 619 xs->tail("vm_arguments"); | |
| 620 // tty output per se is grouped under the <tty>...</tty> element. | |
| 621 xs->head("tty"); | |
| 622 // All further non-markup text gets copied to the tty: | |
| 623 xs->_text = this; // requires friend declaration! | |
| 624 } else { | |
| 625 delete(file); | |
| 626 // and leave xtty as NULL | |
| 627 LogVMOutput = false; | |
| 628 DisplayVMOutput = true; | |
| 629 LogCompilation = false; | |
| 630 } | |
| 631 } | |
| 632 | |
| 633 // finish_log() is called during normal VM shutdown. finish_log_on_error() is | |
| 634 // called by ostream_abort() after a fatal error. | |
| 635 // | |
| 636 void defaultStream::finish_log() { | |
| 637 xmlStream* xs = _outer_xmlStream; | |
| 638 xs->done("tty"); | |
| 639 | |
| 640 // Other log forks are appended here, at the End of Time: | |
| 641 CompileLog::finish_log(xs->out()); // write compile logging, if any, now | |
| 642 | |
| 643 xs->done("hotspot_log"); | |
| 644 xs->flush(); | |
| 645 | |
| 646 fileStream* file = _log_file; | |
| 647 _log_file = NULL; | |
| 648 | |
| 649 delete _outer_xmlStream; | |
| 650 _outer_xmlStream = NULL; | |
| 651 | |
| 652 file->flush(); | |
| 653 delete file; | |
| 654 } | |
| 655 | |
| 656 void defaultStream::finish_log_on_error(char *buf, int buflen) { | |
| 657 xmlStream* xs = _outer_xmlStream; | |
| 658 | |
| 659 if (xs && xs->out()) { | |
| 660 | |
| 661 xs->done_raw("tty"); | |
| 662 | |
| 663 // Other log forks are appended here, at the End of Time: | |
| 664 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now | |
| 665 | |
| 666 xs->done_raw("hotspot_log"); | |
| 667 xs->flush(); | |
| 668 | |
| 669 fileStream* file = _log_file; | |
| 670 _log_file = NULL; | |
| 671 _outer_xmlStream = NULL; | |
| 672 | |
| 673 if (file) { | |
| 674 file->flush(); | |
| 675 | |
| 676 // Can't delete or close the file because delete and fclose aren't | |
| 677 // async-safe. We are about to die, so leave it to the kernel. | |
| 678 // delete file; | |
| 679 } | |
| 680 } | |
| 681 } | |
| 682 | |
| 683 intx defaultStream::hold(intx writer_id) { | |
| 684 bool has_log = has_log_file(); // check before locking | |
| 685 if (// impossible, but who knows? | |
| 686 writer_id == NO_WRITER || | |
| 687 | |
| 688 // bootstrap problem | |
| 689 tty_lock == NULL || | |
| 690 | |
| 691 // can't grab a lock or call Thread::current() if TLS isn't initialized | |
| 692 ThreadLocalStorage::thread() == NULL || | |
| 693 | |
| 694 // developer hook | |
| 695 !SerializeVMOutput || | |
| 696 | |
| 697 // VM already unhealthy | |
| 698 is_error_reported() || | |
| 699 | |
| 700 // safepoint == global lock (for VM only) | |
| 701 (SafepointSynchronize::is_synchronizing() && | |
| 702 Thread::current()->is_VM_thread()) | |
| 703 ) { | |
| 704 // do not attempt to lock unless we know the thread and the VM is healthy | |
| 705 return NO_WRITER; | |
| 706 } | |
| 707 if (_writer == writer_id) { | |
| 708 // already held, no need to re-grab the lock | |
| 709 return NO_WRITER; | |
| 710 } | |
| 711 tty_lock->lock_without_safepoint_check(); | |
| 712 // got the lock | |
| 713 if (writer_id != _last_writer) { | |
| 714 if (has_log) { | |
| 715 _log_file->bol(); | |
| 716 // output a hint where this output is coming from: | |
| 717 _log_file->print_cr("<writer thread='"INTX_FORMAT"'/>", writer_id); | |
| 718 } | |
| 719 _last_writer = writer_id; | |
| 720 } | |
| 721 _writer = writer_id; | |
| 722 return writer_id; | |
| 723 } | |
| 724 | |
| 725 void defaultStream::release(intx holder) { | |
| 726 if (holder == NO_WRITER) { | |
| 727 // nothing to release: either a recursive lock, or we scribbled (too bad) | |
| 728 return; | |
| 729 } | |
| 730 if (_writer != holder) { | |
| 731 return; // already unlocked, perhaps via break_tty_lock_for_safepoint | |
| 732 } | |
| 733 _writer = NO_WRITER; | |
| 734 tty_lock->unlock(); | |
| 735 } | |
| 736 | |
| 737 | |
| 738 // Yuck: jio_print does not accept char*/len. | |
| 739 static void call_jio_print(const char* s, size_t len) { | |
| 740 char buffer[O_BUFLEN+100]; | |
| 741 if (len > sizeof(buffer)-1) { | |
| 742 warning("increase O_BUFLEN in ostream.cpp -- output truncated"); | |
| 743 len = sizeof(buffer)-1; | |
| 744 } | |
| 745 strncpy(buffer, s, len); | |
| 746 buffer[len] = '\0'; | |
| 747 jio_print(buffer); | |
| 748 } | |
| 749 | |
| 750 | |
| 751 void defaultStream::write(const char* s, size_t len) { | |
| 752 intx thread_id = os::current_thread_id(); | |
| 753 intx holder = hold(thread_id); | |
| 754 | |
| 755 if (DisplayVMOutput && | |
| 756 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { | |
| 757 // print to output stream. It can be redirected by a vfprintf hook | |
| 758 if (s[len] == '\0') { | |
| 759 jio_print(s); | |
| 760 } else { | |
| 761 call_jio_print(s, len); | |
| 762 } | |
| 763 } | |
| 764 | |
| 765 // print to log file | |
| 766 if (has_log_file()) { | |
| 767 int nl0 = _newlines; | |
| 768 xmlTextStream::write(s, len); | |
| 769 // flush the log file too, if there were any newlines | |
| 770 if (nl0 != _newlines){ | |
| 771 flush(); | |
| 772 } | |
| 773 } else { | |
| 774 update_position(s, len); | |
| 775 } | |
| 776 | |
| 777 release(holder); | |
| 778 } | |
| 779 | |
| 780 intx ttyLocker::hold_tty() { | |
| 781 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; | |
| 782 intx thread_id = os::current_thread_id(); | |
| 783 return defaultStream::instance->hold(thread_id); | |
| 784 } | |
| 785 | |
| 786 void ttyLocker::release_tty(intx holder) { | |
| 787 if (holder == defaultStream::NO_WRITER) return; | |
| 788 defaultStream::instance->release(holder); | |
| 789 } | |
| 790 | |
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791 bool ttyLocker::release_tty_if_locked() { |
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792 intx thread_id = os::current_thread_id(); |
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793 if (defaultStream::instance->writer() == thread_id) { |
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794 // release the lock and return true so callers know if was |
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795 // previously held. |
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796 release_tty(thread_id); |
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797 return true; |
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798 } |
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799 return false; |
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800 } |
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801 |
| 0 | 802 void ttyLocker::break_tty_lock_for_safepoint(intx holder) { |
| 803 if (defaultStream::instance != NULL && | |
| 804 defaultStream::instance->writer() == holder) { | |
| 805 if (xtty != NULL) { | |
| 806 xtty->print_cr("<!-- safepoint while printing -->"); | |
| 807 } | |
| 808 defaultStream::instance->release(holder); | |
| 809 } | |
| 810 // (else there was no lock to break) | |
| 811 } | |
| 812 | |
| 813 void ostream_init() { | |
| 814 if (defaultStream::instance == NULL) { | |
| 815 defaultStream::instance = new(ResourceObj::C_HEAP) defaultStream(); | |
| 816 tty = defaultStream::instance; | |
| 817 | |
| 818 // We want to ensure that time stamps in GC logs consider time 0 | |
| 819 // the time when the JVM is initialized, not the first time we ask | |
| 820 // for a time stamp. So, here, we explicitly update the time stamp | |
| 821 // of tty. | |
| 822 tty->time_stamp().update_to(1); | |
| 823 } | |
| 824 } | |
| 825 | |
| 826 void ostream_init_log() { | |
| 827 // For -Xloggc:<file> option - called in runtime/thread.cpp | |
| 828 // Note : this must be called AFTER ostream_init() | |
| 829 | |
| 830 gclog_or_tty = tty; // default to tty | |
| 831 if (Arguments::gc_log_filename() != NULL) { | |
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832 fileStream * gclog = UseGCLogFileRotation ? |
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833 new(ResourceObj::C_HEAP) |
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834 rotatingFileStream(Arguments::gc_log_filename()) : |
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835 new(ResourceObj::C_HEAP) |
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836 fileStream(Arguments::gc_log_filename()); |
| 0 | 837 if (gclog->is_open()) { |
| 838 // now we update the time stamp of the GC log to be synced up | |
| 839 // with tty. | |
| 840 gclog->time_stamp().update_to(tty->time_stamp().ticks()); | |
| 841 } | |
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842 gclog_or_tty = gclog; |
| 0 | 843 } |
| 844 | |
| 845 // If we haven't lazily initialized the logfile yet, do it now, | |
| 846 // to avoid the possibility of lazy initialization during a VM | |
| 847 // crash, which can affect the stability of the fatal error handler. | |
| 848 defaultStream::instance->has_log_file(); | |
| 849 } | |
| 850 | |
| 851 // ostream_exit() is called during normal VM exit to finish log files, flush | |
| 852 // output and free resource. | |
| 853 void ostream_exit() { | |
| 854 static bool ostream_exit_called = false; | |
| 855 if (ostream_exit_called) return; | |
| 856 ostream_exit_called = true; | |
| 857 if (gclog_or_tty != tty) { | |
| 858 delete gclog_or_tty; | |
| 859 } | |
| 860 { | |
| 861 // we temporaly disable PrintMallocFree here | |
| 862 // as otherwise it'll lead to using of almost deleted | |
| 863 // tty or defaultStream::instance in logging facility | |
| 864 // of HeapFree(), see 6391258 | |
| 865 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) | |
| 866 if (tty != defaultStream::instance) { | |
| 867 delete tty; | |
| 868 } | |
| 869 if (defaultStream::instance != NULL) { | |
| 870 delete defaultStream::instance; | |
| 871 } | |
| 872 } | |
| 873 tty = NULL; | |
| 874 xtty = NULL; | |
| 875 gclog_or_tty = NULL; | |
| 876 defaultStream::instance = NULL; | |
| 877 } | |
| 878 | |
| 879 // ostream_abort() is called by os::abort() when VM is about to die. | |
| 880 void ostream_abort() { | |
| 881 // Here we can't delete gclog_or_tty and tty, just flush their output | |
| 882 if (gclog_or_tty) gclog_or_tty->flush(); | |
| 883 if (tty) tty->flush(); | |
| 884 | |
| 885 if (defaultStream::instance != NULL) { | |
| 886 static char buf[4096]; | |
| 887 defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); | |
| 888 } | |
| 889 } | |
| 890 | |
| 891 staticBufferStream::staticBufferStream(char* buffer, size_t buflen, | |
| 892 outputStream *outer_stream) { | |
| 893 _buffer = buffer; | |
| 894 _buflen = buflen; | |
| 895 _outer_stream = outer_stream; | |
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896 // compile task prints time stamp relative to VM start |
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897 _stamp.update_to(1); |
| 0 | 898 } |
| 899 | |
| 900 void staticBufferStream::write(const char* c, size_t len) { | |
| 901 _outer_stream->print_raw(c, (int)len); | |
| 902 } | |
| 903 | |
| 904 void staticBufferStream::flush() { | |
| 905 _outer_stream->flush(); | |
| 906 } | |
| 907 | |
| 908 void staticBufferStream::print(const char* format, ...) { | |
| 909 va_list ap; | |
| 910 va_start(ap, format); | |
| 911 size_t len; | |
| 912 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); | |
| 913 write(str, len); | |
| 914 va_end(ap); | |
| 915 } | |
| 916 | |
| 917 void staticBufferStream::print_cr(const char* format, ...) { | |
| 918 va_list ap; | |
| 919 va_start(ap, format); | |
| 920 size_t len; | |
| 921 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); | |
| 922 write(str, len); | |
| 923 va_end(ap); | |
| 924 } | |
| 925 | |
| 926 void staticBufferStream::vprint(const char *format, va_list argptr) { | |
| 927 size_t len; | |
| 928 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); | |
| 929 write(str, len); | |
| 930 } | |
| 931 | |
| 932 void staticBufferStream::vprint_cr(const char* format, va_list argptr) { | |
| 933 size_t len; | |
| 934 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); | |
| 935 write(str, len); | |
| 936 } | |
| 937 | |
| 222 | 938 bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { |
| 0 | 939 buffer_length = initial_size; |
| 940 buffer = NEW_C_HEAP_ARRAY(char, buffer_length); | |
| 941 buffer_pos = 0; | |
| 942 buffer_fixed = false; | |
| 222 | 943 buffer_max = bufmax; |
| 0 | 944 } |
| 945 | |
| 222 | 946 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { |
| 0 | 947 buffer_length = fixed_buffer_size; |
| 948 buffer = fixed_buffer; | |
| 949 buffer_pos = 0; | |
| 950 buffer_fixed = true; | |
| 222 | 951 buffer_max = bufmax; |
| 0 | 952 } |
| 953 | |
| 954 void bufferedStream::write(const char* s, size_t len) { | |
| 222 | 955 |
| 956 if(buffer_pos + len > buffer_max) { | |
| 957 flush(); | |
| 958 } | |
| 959 | |
| 0 | 960 size_t end = buffer_pos + len; |
| 961 if (end >= buffer_length) { | |
| 962 if (buffer_fixed) { | |
| 963 // if buffer cannot resize, silently truncate | |
| 964 len = buffer_length - buffer_pos - 1; | |
| 965 } else { | |
| 966 // For small overruns, double the buffer. For larger ones, | |
| 967 // increase to the requested size. | |
| 968 if (end < buffer_length * 2) { | |
| 969 end = buffer_length * 2; | |
| 970 } | |
| 971 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end); | |
| 972 buffer_length = end; | |
| 973 } | |
| 974 } | |
| 975 memcpy(buffer + buffer_pos, s, len); | |
| 976 buffer_pos += len; | |
| 977 update_position(s, len); | |
| 978 } | |
| 979 | |
| 980 char* bufferedStream::as_string() { | |
| 981 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
| 982 strncpy(copy, buffer, buffer_pos); | |
| 983 copy[buffer_pos] = 0; // terminating null | |
| 984 return copy; | |
| 985 } | |
| 986 | |
| 987 bufferedStream::~bufferedStream() { | |
| 988 if (!buffer_fixed) { | |
| 989 FREE_C_HEAP_ARRAY(char, buffer); | |
| 990 } | |
| 991 } | |
| 992 | |
| 993 #ifndef PRODUCT | |
| 994 | |
| 995 #if defined(SOLARIS) || defined(LINUX) | |
| 996 #include <sys/types.h> | |
| 997 #include <sys/socket.h> | |
| 998 #include <netinet/in.h> | |
| 999 #include <arpa/inet.h> | |
| 1000 #endif | |
| 1001 | |
| 1002 // Network access | |
| 222 | 1003 networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { |
| 0 | 1004 |
| 1005 _socket = -1; | |
| 1006 | |
|
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828eafbd85cc
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parents:
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diff
changeset
|
1007 int result = os::socket(AF_INET, SOCK_STREAM, 0); |
| 0 | 1008 if (result <= 0) { |
| 1009 assert(false, "Socket could not be created!"); | |
| 1010 } else { | |
| 1011 _socket = result; | |
| 1012 } | |
| 1013 } | |
| 1014 | |
| 1015 int networkStream::read(char *buf, size_t len) { | |
|
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diff
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|
1016 return os::recv(_socket, buf, (int)len, 0); |
| 0 | 1017 } |
| 1018 | |
| 1019 void networkStream::flush() { | |
| 1020 if (size() != 0) { | |
|
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diff
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|
1021 int result = os::raw_send(_socket, (char *)base(), (int)size(), 0); |
| 222 | 1022 assert(result != -1, "connection error"); |
| 1023 assert(result == (int)size(), "didn't send enough data"); | |
| 0 | 1024 } |
| 1025 reset(); | |
| 1026 } | |
| 1027 | |
| 1028 networkStream::~networkStream() { | |
| 1029 close(); | |
| 1030 } | |
| 1031 | |
| 1032 void networkStream::close() { | |
| 1033 if (_socket != -1) { | |
| 1034 flush(); | |
|
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parents:
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diff
changeset
|
1035 os::socket_close(_socket); |
| 0 | 1036 _socket = -1; |
| 1037 } | |
| 1038 } | |
| 1039 | |
| 1040 bool networkStream::connect(const char *ip, short port) { | |
| 1041 | |
| 1042 struct sockaddr_in server; | |
| 1043 server.sin_family = AF_INET; | |
| 1044 server.sin_port = htons(port); | |
| 1045 | |
| 1046 server.sin_addr.s_addr = inet_addr(ip); | |
|
80
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diff
changeset
|
1047 if (server.sin_addr.s_addr == (uint32_t)-1) { |
|
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diff
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|
1048 struct hostent* host = os::get_host_by_name((char*)ip); |
| 0 | 1049 if (host != NULL) { |
| 1050 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); | |
| 1051 } else { | |
| 1052 return false; | |
| 1053 } | |
| 1054 } | |
| 1055 | |
| 1056 | |
|
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parents:
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diff
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|
1057 int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); |
| 0 | 1058 return (result >= 0); |
| 1059 } | |
| 1060 | |
| 1061 #endif |