Mercurial > hg > truffle
annotate src/share/vm/utilities/ostream.cpp @ 20734:a4fdab16b621
8049253: Better GC validation
Summary: Also reviewed by: boris.molodenkov@oracle.com
Reviewed-by: dcubed, minqi, mschoene
Contributed-by: yasuenag@gmail.com, bengt.rutisson@oracle.com
| author | brutisso |
|---|---|
| date | Tue, 19 Aug 2014 11:17:36 +0200 |
| parents | 78bbf4d43a14 |
| children | c2844108a708 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2014, 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 | |
| 14411 | 42 #ifdef TARGET_OS_FAMILY_aix |
| 43 # include "os_aix.inline.hpp" | |
| 44 #endif | |
| 3960 | 45 #ifdef TARGET_OS_FAMILY_bsd |
| 46 # include "os_bsd.inline.hpp" | |
| 47 #endif | |
| 0 | 48 |
| 49 extern "C" void jio_print(const char* s); // Declarationtion of jvm method | |
| 50 | |
| 51 outputStream::outputStream(int width) { | |
| 52 _width = width; | |
| 53 _position = 0; | |
| 54 _newlines = 0; | |
| 55 _precount = 0; | |
| 56 _indentation = 0; | |
| 57 } | |
| 58 | |
| 59 outputStream::outputStream(int width, bool has_time_stamps) { | |
| 60 _width = width; | |
| 61 _position = 0; | |
| 62 _newlines = 0; | |
| 63 _precount = 0; | |
| 64 _indentation = 0; | |
| 65 if (has_time_stamps) _stamp.update(); | |
| 66 } | |
| 67 | |
| 68 void outputStream::update_position(const char* s, size_t len) { | |
| 69 for (size_t i = 0; i < len; i++) { | |
| 70 char ch = s[i]; | |
| 71 if (ch == '\n') { | |
| 72 _newlines += 1; | |
| 73 _precount += _position + 1; | |
| 74 _position = 0; | |
| 75 } else if (ch == '\t') { | |
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76 int tw = 8 - (_position & 7); |
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77 _position += tw; |
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78 _precount -= tw-1; // invariant: _precount + _position == total count |
| 0 | 79 } else { |
| 80 _position += 1; | |
| 81 } | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 // Execute a vsprintf, using the given buffer if necessary. | |
| 86 // Return a pointer to the formatted string. | |
| 87 const char* outputStream::do_vsnprintf(char* buffer, size_t buflen, | |
| 88 const char* format, va_list ap, | |
| 89 bool add_cr, | |
| 90 size_t& result_len) { | |
| 91 const char* result; | |
| 92 if (add_cr) buflen--; | |
| 93 if (!strchr(format, '%')) { | |
| 94 // constant format string | |
| 95 result = format; | |
| 96 result_len = strlen(result); | |
| 97 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
| 98 } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') { | |
| 99 // trivial copy-through format string | |
| 100 result = va_arg(ap, const char*); | |
| 101 result_len = strlen(result); | |
| 102 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
| 103 } else if (vsnprintf(buffer, buflen, format, ap) >= 0) { | |
| 104 result = buffer; | |
| 105 result_len = strlen(result); | |
| 106 } else { | |
| 107 DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");) | |
| 108 result = buffer; | |
| 109 result_len = buflen - 1; | |
| 110 buffer[result_len] = 0; | |
| 111 } | |
| 112 if (add_cr) { | |
| 113 if (result != buffer) { | |
| 114 strncpy(buffer, result, buflen); | |
| 115 result = buffer; | |
| 116 } | |
| 117 buffer[result_len++] = '\n'; | |
| 118 buffer[result_len] = 0; | |
| 119 } | |
| 120 return result; | |
| 121 } | |
| 122 | |
| 123 void outputStream::print(const char* format, ...) { | |
| 124 char buffer[O_BUFLEN]; | |
| 125 va_list ap; | |
| 126 va_start(ap, format); | |
| 127 size_t len; | |
| 128 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len); | |
| 129 write(str, len); | |
| 130 va_end(ap); | |
| 131 } | |
| 132 | |
| 133 void outputStream::print_cr(const char* format, ...) { | |
| 134 char buffer[O_BUFLEN]; | |
| 135 va_list ap; | |
| 136 va_start(ap, format); | |
| 137 size_t len; | |
| 138 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len); | |
| 139 write(str, len); | |
| 140 va_end(ap); | |
| 141 } | |
| 142 | |
| 143 void outputStream::vprint(const char *format, va_list argptr) { | |
| 144 char buffer[O_BUFLEN]; | |
| 145 size_t len; | |
| 146 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len); | |
| 147 write(str, len); | |
| 148 } | |
| 149 | |
| 150 void outputStream::vprint_cr(const char* format, va_list argptr) { | |
| 151 char buffer[O_BUFLEN]; | |
| 152 size_t len; | |
| 153 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); | |
| 154 write(str, len); | |
| 155 } | |
| 156 | |
| 157 void outputStream::fill_to(int col) { | |
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158 int need_fill = col - position(); |
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159 sp(need_fill); |
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160 } |
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161 |
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162 void outputStream::move_to(int col, int slop, int min_space) { |
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163 if (position() >= col + slop) |
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164 cr(); |
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165 int need_fill = col - position(); |
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166 if (need_fill < min_space) |
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167 need_fill = min_space; |
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168 sp(need_fill); |
| 0 | 169 } |
| 170 | |
| 171 void outputStream::put(char ch) { | |
| 172 assert(ch != 0, "please fix call site"); | |
| 173 char buf[] = { ch, '\0' }; | |
| 174 write(buf, 1); | |
| 175 } | |
| 176 | |
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177 #define SP_USE_TABS false |
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178 |
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179 void outputStream::sp(int count) { |
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180 if (count < 0) return; |
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181 if (SP_USE_TABS && count >= 8) { |
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182 int target = position() + count; |
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183 while (count >= 8) { |
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184 this->write("\t", 1); |
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185 count -= 8; |
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186 } |
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187 count = target - position(); |
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188 } |
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189 while (count > 0) { |
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190 int nw = (count > 8) ? 8 : count; |
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191 this->write(" ", nw); |
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192 count -= nw; |
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193 } |
| 0 | 194 } |
| 195 | |
| 196 void outputStream::cr() { | |
| 197 this->write("\n", 1); | |
| 198 } | |
| 199 | |
| 200 void outputStream::stamp() { | |
| 201 if (! _stamp.is_updated()) { | |
| 202 _stamp.update(); // start at 0 on first call to stamp() | |
| 203 } | |
| 204 | |
| 205 // outputStream::stamp() may get called by ostream_abort(), use snprintf | |
| 206 // to avoid allocating large stack buffer in print(). | |
| 207 char buf[40]; | |
| 208 jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds()); | |
| 209 print_raw(buf); | |
| 210 } | |
| 211 | |
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212 void outputStream::stamp(bool guard, |
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213 const char* prefix, |
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214 const char* suffix) { |
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215 if (!guard) { |
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216 return; |
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217 } |
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218 print_raw(prefix); |
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219 stamp(); |
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220 print_raw(suffix); |
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221 } |
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222 |
| 0 | 223 void outputStream::date_stamp(bool guard, |
| 224 const char* prefix, | |
| 225 const char* suffix) { | |
| 226 if (!guard) { | |
| 227 return; | |
| 228 } | |
| 229 print_raw(prefix); | |
| 230 static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz"; | |
| 231 static const int buffer_length = 32; | |
| 232 char buffer[buffer_length]; | |
| 233 const char* iso8601_result = os::iso8601_time(buffer, buffer_length); | |
| 234 if (iso8601_result != NULL) { | |
| 235 print_raw(buffer); | |
| 236 } else { | |
| 237 print_raw(error_time); | |
| 238 } | |
| 239 print_raw(suffix); | |
| 240 return; | |
| 241 } | |
| 242 | |
| 6605 | 243 outputStream& outputStream::indent() { |
| 0 | 244 while (_position < _indentation) sp(); |
| 6605 | 245 return *this; |
| 0 | 246 } |
| 247 | |
| 248 void outputStream::print_jlong(jlong value) { | |
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249 print(JLONG_FORMAT, value); |
| 0 | 250 } |
| 251 | |
| 252 void outputStream::print_julong(julong value) { | |
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253 print(JULONG_FORMAT, value); |
| 0 | 254 } |
| 255 | |
| 6605 | 256 /** |
| 257 * This prints out hex data in a 'windbg' or 'xxd' form, where each line is: | |
| 258 * <hex-address>: 8 * <hex-halfword> <ascii translation (optional)> | |
| 259 * example: | |
| 260 * 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000 .DOF............ | |
| 261 * 0000010: 0000 0000 0000 0040 0000 0020 0000 0005 .......@... .... | |
| 262 * 0000020: 0000 0000 0000 0040 0000 0000 0000 015d .......@.......] | |
| 263 * ... | |
| 264 * | |
| 265 * indent is applied to each line. Ends with a CR. | |
| 266 */ | |
| 267 void outputStream::print_data(void* data, size_t len, bool with_ascii) { | |
| 268 size_t limit = (len + 16) / 16 * 16; | |
| 269 for (size_t i = 0; i < limit; ++i) { | |
| 270 if (i % 16 == 0) { | |
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271 indent().print(SIZE_FORMAT_HEX_W(07)":", i); |
| 6605 | 272 } |
| 273 if (i % 2 == 0) { | |
| 274 print(" "); | |
| 275 } | |
| 276 if (i < len) { | |
| 277 print("%02x", ((unsigned char*)data)[i]); | |
| 278 } else { | |
| 279 print(" "); | |
| 280 } | |
| 281 if ((i + 1) % 16 == 0) { | |
| 282 if (with_ascii) { | |
| 283 print(" "); | |
| 284 for (size_t j = 0; j < 16; ++j) { | |
| 285 size_t idx = i + j - 15; | |
| 286 if (idx < len) { | |
| 287 char c = ((char*)data)[idx]; | |
| 288 print("%c", c >= 32 && c <= 126 ? c : '.'); | |
| 289 } | |
| 290 } | |
| 291 } | |
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292 cr(); |
| 6605 | 293 } |
| 294 } | |
| 295 } | |
| 296 | |
| 0 | 297 stringStream::stringStream(size_t initial_size) : outputStream() { |
| 298 buffer_length = initial_size; | |
| 299 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); | |
| 300 buffer_pos = 0; | |
| 301 buffer_fixed = false; | |
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302 DEBUG_ONLY(rm = Thread::current()->current_resource_mark();) |
| 0 | 303 } |
| 304 | |
| 305 // useful for output to fixed chunks of memory, such as performance counters | |
| 306 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { | |
| 307 buffer_length = fixed_buffer_size; | |
| 308 buffer = fixed_buffer; | |
| 309 buffer_pos = 0; | |
| 310 buffer_fixed = true; | |
| 311 } | |
| 312 | |
| 313 void stringStream::write(const char* s, size_t len) { | |
| 314 size_t write_len = len; // number of non-null bytes to write | |
| 315 size_t end = buffer_pos + len + 1; // position after write and final '\0' | |
| 316 if (end > buffer_length) { | |
| 317 if (buffer_fixed) { | |
| 318 // if buffer cannot resize, silently truncate | |
| 319 end = buffer_length; | |
| 320 write_len = end - buffer_pos - 1; // leave room for the final '\0' | |
| 321 } else { | |
| 322 // For small overruns, double the buffer. For larger ones, | |
| 323 // increase to the requested size. | |
| 324 if (end < buffer_length * 2) { | |
| 325 end = buffer_length * 2; | |
| 326 } | |
| 327 char* oldbuf = buffer; | |
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328 assert(rm == NULL || Thread::current()->current_resource_mark() == rm, |
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329 "stringStream is re-allocated with a different ResourceMark"); |
| 0 | 330 buffer = NEW_RESOURCE_ARRAY(char, end); |
| 331 strncpy(buffer, oldbuf, buffer_pos); | |
| 332 buffer_length = end; | |
| 333 } | |
| 334 } | |
| 335 // invariant: buffer is always null-terminated | |
| 336 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); | |
| 337 buffer[buffer_pos + write_len] = 0; | |
| 338 strncpy(buffer + buffer_pos, s, write_len); | |
| 339 buffer_pos += write_len; | |
| 340 | |
| 341 // Note that the following does not depend on write_len. | |
| 342 // This means that position and count get updated | |
| 343 // even when overflow occurs. | |
| 344 update_position(s, len); | |
| 345 } | |
| 346 | |
| 347 char* stringStream::as_string() { | |
| 12215 | 348 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos + 1); |
| 0 | 349 strncpy(copy, buffer, buffer_pos); |
| 350 copy[buffer_pos] = 0; // terminating null | |
| 351 return copy; | |
| 352 } | |
| 353 | |
| 354 stringStream::~stringStream() {} | |
| 355 | |
| 356 xmlStream* xtty; | |
| 357 outputStream* tty; | |
| 358 outputStream* gclog_or_tty; | |
| 359 extern Mutex* tty_lock; | |
| 360 | |
| 12215 | 361 #define EXTRACHARLEN 32 |
| 362 #define CURRENTAPPX ".current" | |
| 363 // convert YYYY-MM-DD HH:MM:SS to YYYY-MM-DD_HH-MM-SS | |
| 364 char* get_datetime_string(char *buf, size_t len) { | |
| 365 os::local_time_string(buf, len); | |
| 366 int i = (int)strlen(buf); | |
| 367 while (i-- >= 0) { | |
| 368 if (buf[i] == ' ') buf[i] = '_'; | |
| 369 else if (buf[i] == ':') buf[i] = '-'; | |
| 370 } | |
| 371 return buf; | |
| 372 } | |
| 373 | |
| 374 static const char* make_log_name_internal(const char* log_name, const char* force_directory, | |
| 375 int pid, const char* tms) { | |
| 376 const char* basename = log_name; | |
| 377 char file_sep = os::file_separator()[0]; | |
| 378 const char* cp; | |
| 379 char pid_text[32]; | |
| 380 | |
| 381 for (cp = log_name; *cp != '\0'; cp++) { | |
| 382 if (*cp == '/' || *cp == file_sep) { | |
| 383 basename = cp + 1; | |
| 384 } | |
| 385 } | |
| 386 const char* nametail = log_name; | |
| 387 // Compute buffer length | |
| 388 size_t buffer_length; | |
| 389 if (force_directory != NULL) { | |
| 390 buffer_length = strlen(force_directory) + strlen(os::file_separator()) + | |
| 391 strlen(basename) + 1; | |
| 392 } else { | |
| 393 buffer_length = strlen(log_name) + 1; | |
| 394 } | |
| 395 | |
| 396 const char* pts = strstr(basename, "%p"); | |
| 397 int pid_pos = (pts == NULL) ? -1 : (pts - nametail); | |
| 398 | |
| 399 if (pid_pos >= 0) { | |
| 400 jio_snprintf(pid_text, sizeof(pid_text), "pid%u", pid); | |
| 401 buffer_length += strlen(pid_text); | |
| 402 } | |
| 403 | |
| 404 pts = strstr(basename, "%t"); | |
| 405 int tms_pos = (pts == NULL) ? -1 : (pts - nametail); | |
| 406 if (tms_pos >= 0) { | |
| 407 buffer_length += strlen(tms); | |
| 408 } | |
| 409 | |
| 20734 | 410 // File name is too long. |
| 411 if (buffer_length > JVM_MAXPATHLEN) { | |
| 412 return NULL; | |
| 413 } | |
| 414 | |
| 12215 | 415 // Create big enough buffer. |
| 416 char *buf = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); | |
| 417 | |
| 418 strcpy(buf, ""); | |
| 419 if (force_directory != NULL) { | |
| 420 strcat(buf, force_directory); | |
| 421 strcat(buf, os::file_separator()); | |
| 422 nametail = basename; // completely skip directory prefix | |
| 423 } | |
| 424 | |
| 425 // who is first, %p or %t? | |
| 426 int first = -1, second = -1; | |
| 427 const char *p1st = NULL; | |
| 428 const char *p2nd = NULL; | |
| 429 | |
| 430 if (pid_pos >= 0 && tms_pos >= 0) { | |
| 431 // contains both %p and %t | |
| 432 if (pid_pos < tms_pos) { | |
| 433 // case foo%pbar%tmonkey.log | |
| 434 first = pid_pos; | |
| 435 p1st = pid_text; | |
| 436 second = tms_pos; | |
| 437 p2nd = tms; | |
| 438 } else { | |
| 439 // case foo%tbar%pmonkey.log | |
| 440 first = tms_pos; | |
| 441 p1st = tms; | |
| 442 second = pid_pos; | |
| 443 p2nd = pid_text; | |
| 444 } | |
| 445 } else if (pid_pos >= 0) { | |
| 446 // contains %p only | |
| 447 first = pid_pos; | |
| 448 p1st = pid_text; | |
| 449 } else if (tms_pos >= 0) { | |
| 450 // contains %t only | |
| 451 first = tms_pos; | |
| 452 p1st = tms; | |
| 453 } | |
| 454 | |
| 455 int buf_pos = (int)strlen(buf); | |
| 456 const char* tail = nametail; | |
| 457 | |
| 458 if (first >= 0) { | |
| 459 tail = nametail + first + 2; | |
| 460 strncpy(&buf[buf_pos], nametail, first); | |
| 461 strcpy(&buf[buf_pos + first], p1st); | |
| 462 buf_pos = (int)strlen(buf); | |
| 463 if (second >= 0) { | |
| 464 strncpy(&buf[buf_pos], tail, second - first - 2); | |
| 465 strcpy(&buf[buf_pos + second - first - 2], p2nd); | |
| 466 tail = nametail + second + 2; | |
| 467 } | |
| 468 } | |
| 469 strcat(buf, tail); // append rest of name, or all of name | |
| 470 return buf; | |
| 471 } | |
| 472 | |
| 473 // log_name comes from -XX:LogFile=log_name or -Xloggc:log_name | |
|
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474 // in log_name, %p => pid1234 and |
| 12215 | 475 // %t => YYYY-MM-DD_HH-MM-SS |
| 476 static const char* make_log_name(const char* log_name, const char* force_directory) { | |
| 477 char timestr[32]; | |
| 478 get_datetime_string(timestr, sizeof(timestr)); | |
| 479 return make_log_name_internal(log_name, force_directory, os::current_process_id(), | |
| 480 timestr); | |
| 481 } | |
| 482 | |
| 483 #ifndef PRODUCT | |
| 484 void test_loggc_filename() { | |
| 485 int pid; | |
| 486 char tms[32]; | |
| 20734 | 487 char i_result[JVM_MAXPATHLEN]; |
| 12215 | 488 const char* o_result; |
| 489 get_datetime_string(tms, sizeof(tms)); | |
| 490 pid = os::current_process_id(); | |
| 491 | |
| 492 // test.log | |
| 20734 | 493 jio_snprintf(i_result, JVM_MAXPATHLEN, "test.log", tms); |
| 12215 | 494 o_result = make_log_name_internal("test.log", NULL, pid, tms); |
| 495 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test.log\", NULL)"); | |
| 496 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 497 | |
| 498 // test-%t-%p.log | |
| 20734 | 499 jio_snprintf(i_result, JVM_MAXPATHLEN, "test-%s-pid%u.log", tms, pid); |
| 12215 | 500 o_result = make_log_name_internal("test-%t-%p.log", NULL, pid, tms); |
| 501 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t-%%p.log\", NULL)"); | |
| 502 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 503 | |
| 504 // test-%t%p.log | |
| 20734 | 505 jio_snprintf(i_result, JVM_MAXPATHLEN, "test-%spid%u.log", tms, pid); |
| 12215 | 506 o_result = make_log_name_internal("test-%t%p.log", NULL, pid, tms); |
| 507 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t%%p.log\", NULL)"); | |
| 508 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 509 | |
| 510 // %p%t.log | |
| 20734 | 511 jio_snprintf(i_result, JVM_MAXPATHLEN, "pid%u%s.log", pid, tms); |
| 12215 | 512 o_result = make_log_name_internal("%p%t.log", NULL, pid, tms); |
| 513 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p%%t.log\", NULL)"); | |
| 514 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 515 | |
| 516 // %p-test.log | |
| 20734 | 517 jio_snprintf(i_result, JVM_MAXPATHLEN, "pid%u-test.log", pid); |
| 12215 | 518 o_result = make_log_name_internal("%p-test.log", NULL, pid, tms); |
| 519 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p-test.log\", NULL)"); | |
| 520 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 521 | |
| 522 // %t.log | |
| 20734 | 523 jio_snprintf(i_result, JVM_MAXPATHLEN, "%s.log", tms); |
| 12215 | 524 o_result = make_log_name_internal("%t.log", NULL, pid, tms); |
| 525 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%t.log\", NULL)"); | |
| 526 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 20734 | 527 |
| 528 { | |
| 529 // longest filename | |
| 530 char longest_name[JVM_MAXPATHLEN]; | |
| 531 memset(longest_name, 'a', sizeof(longest_name)); | |
| 532 longest_name[JVM_MAXPATHLEN - 1] = '\0'; | |
| 533 o_result = make_log_name_internal((const char*)&longest_name, NULL, pid, tms); | |
| 534 assert(strcmp(longest_name, o_result) == 0, err_msg("longest name does not match. expected '%s' but got '%s'", longest_name, o_result)); | |
| 535 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 536 } | |
| 537 | |
| 538 { | |
| 539 // too long file name | |
| 540 char too_long_name[JVM_MAXPATHLEN + 100]; | |
| 541 int too_long_length = sizeof(too_long_name); | |
| 542 memset(too_long_name, 'a', too_long_length); | |
| 543 too_long_name[too_long_length - 1] = '\0'; | |
| 544 o_result = make_log_name_internal((const char*)&too_long_name, NULL, pid, tms); | |
| 545 assert(o_result == NULL, err_msg("Too long file name should return NULL, but got '%s'", o_result)); | |
| 546 } | |
| 547 | |
| 548 { | |
| 549 // too long with timestamp | |
| 550 char longest_name[JVM_MAXPATHLEN]; | |
| 551 memset(longest_name, 'a', JVM_MAXPATHLEN); | |
| 552 longest_name[JVM_MAXPATHLEN - 3] = '%'; | |
| 553 longest_name[JVM_MAXPATHLEN - 2] = 't'; | |
| 554 longest_name[JVM_MAXPATHLEN - 1] = '\0'; | |
| 555 o_result = make_log_name_internal((const char*)&longest_name, NULL, pid, tms); | |
| 556 assert(o_result == NULL, err_msg("Too long file name after timestamp expansion should return NULL, but got '%s'", o_result)); | |
| 557 } | |
| 558 | |
| 559 { | |
| 560 // too long with pid | |
| 561 char longest_name[JVM_MAXPATHLEN]; | |
| 562 memset(longest_name, 'a', JVM_MAXPATHLEN); | |
| 563 longest_name[JVM_MAXPATHLEN - 3] = '%'; | |
| 564 longest_name[JVM_MAXPATHLEN - 2] = 'p'; | |
| 565 longest_name[JVM_MAXPATHLEN - 1] = '\0'; | |
| 566 o_result = make_log_name_internal((const char*)&longest_name, NULL, pid, tms); | |
| 567 assert(o_result == NULL, err_msg("Too long file name after pid expansion should return NULL, but got '%s'", o_result)); | |
| 568 } | |
| 12215 | 569 } |
| 570 #endif // PRODUCT | |
| 571 | |
| 0 | 572 fileStream::fileStream(const char* file_name) { |
| 573 _file = fopen(file_name, "w"); | |
| 12215 | 574 if (_file != NULL) { |
| 575 _need_close = true; | |
| 576 } else { | |
| 577 warning("Cannot open file %s due to %s\n", file_name, strerror(errno)); | |
| 578 _need_close = false; | |
| 579 } | |
| 0 | 580 } |
| 581 | |
|
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582 fileStream::fileStream(const char* file_name, const char* opentype) { |
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583 _file = fopen(file_name, opentype); |
| 12215 | 584 if (_file != NULL) { |
| 585 _need_close = true; | |
| 586 } else { | |
| 587 warning("Cannot open file %s due to %s\n", file_name, strerror(errno)); | |
| 588 _need_close = false; | |
| 589 } | |
|
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590 } |
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591 |
| 0 | 592 void fileStream::write(const char* s, size_t len) { |
|
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593 if (_file != NULL) { |
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594 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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595 size_t count = fwrite(s, 1, len, _file); |
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596 } |
| 0 | 597 update_position(s, len); |
| 598 } | |
| 599 | |
|
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600 long fileStream::fileSize() { |
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601 long size = -1; |
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602 if (_file != NULL) { |
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603 long pos = ::ftell(_file); |
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604 if (::fseek(_file, 0, SEEK_END) == 0) { |
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605 size = ::ftell(_file); |
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606 } |
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607 ::fseek(_file, pos, SEEK_SET); |
|
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608 } |
|
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609 return size; |
|
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610 } |
|
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611 |
|
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612 char* fileStream::readln(char *data, int count ) { |
|
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613 char * ret = ::fgets(data, count, _file); |
|
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614 //Get rid of annoying \n char |
|
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615 data[::strlen(data)-1] = '\0'; |
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616 return ret; |
|
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617 } |
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618 |
| 0 | 619 fileStream::~fileStream() { |
| 620 if (_file != NULL) { | |
| 621 if (_need_close) fclose(_file); | |
|
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622 _file = NULL; |
| 0 | 623 } |
| 624 } | |
| 625 | |
| 626 void fileStream::flush() { | |
| 627 fflush(_file); | |
| 628 } | |
| 629 | |
| 630 fdStream::fdStream(const char* file_name) { | |
| 631 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 632 _need_close = true; | |
| 633 } | |
| 634 | |
| 635 fdStream::~fdStream() { | |
| 636 if (_fd != -1) { | |
| 637 if (_need_close) close(_fd); | |
| 638 _fd = -1; | |
| 639 } | |
| 640 } | |
| 641 | |
| 642 void fdStream::write(const char* s, size_t len) { | |
|
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643 if (_fd != -1) { |
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644 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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645 size_t count = ::write(_fd, s, (int)len); |
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646 } |
| 0 | 647 update_position(s, len); |
| 648 } | |
| 649 | |
| 12215 | 650 // dump vm version, os version, platform info, build id, |
| 651 // memory usage and command line flags into header | |
| 652 void gcLogFileStream::dump_loggc_header() { | |
| 653 if (is_open()) { | |
|
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654 print_cr("%s", Abstract_VM_Version::internal_vm_info_string()); |
| 12215 | 655 os::print_memory_info(this); |
| 656 print("CommandLine flags: "); | |
| 657 CommandLineFlags::printSetFlags(this); | |
| 658 } | |
| 659 } | |
| 660 | |
| 661 gcLogFileStream::~gcLogFileStream() { | |
|
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662 if (_file != NULL) { |
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663 if (_need_close) fclose(_file); |
| 12215 | 664 _file = NULL; |
| 665 } | |
| 666 if (_file_name != NULL) { | |
| 6197 | 667 FREE_C_HEAP_ARRAY(char, _file_name, mtInternal); |
|
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668 _file_name = NULL; |
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669 } |
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670 } |
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671 |
| 12215 | 672 gcLogFileStream::gcLogFileStream(const char* file_name) { |
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673 _cur_file_num = 0; |
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674 _bytes_written = 0L; |
| 12215 | 675 _file_name = make_log_name(file_name, NULL); |
| 676 | |
| 20734 | 677 if (_file_name == NULL) { |
| 678 warning("Cannot open file %s: file name is too long.\n", file_name); | |
| 679 _need_close = false; | |
| 680 UseGCLogFileRotation = false; | |
| 681 return; | |
| 682 } | |
| 683 | |
| 12215 | 684 // gc log file rotation |
| 685 if (UseGCLogFileRotation && NumberOfGCLogFiles > 1) { | |
| 20734 | 686 char tempbuf[JVM_MAXPATHLEN]; |
| 12215 | 687 jio_snprintf(tempbuf, sizeof(tempbuf), "%s.%d" CURRENTAPPX, _file_name, _cur_file_num); |
| 688 _file = fopen(tempbuf, "w"); | |
| 689 } else { | |
| 690 _file = fopen(_file_name, "w"); | |
| 691 } | |
| 692 if (_file != NULL) { | |
| 693 _need_close = true; | |
| 694 dump_loggc_header(); | |
| 695 } else { | |
| 696 warning("Cannot open file %s due to %s\n", _file_name, strerror(errno)); | |
| 697 _need_close = false; | |
| 698 } | |
|
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699 } |
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700 |
| 12215 | 701 void gcLogFileStream::write(const char* s, size_t len) { |
|
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702 if (_file != NULL) { |
|
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703 size_t count = fwrite(s, 1, len, _file); |
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704 _bytes_written += count; |
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705 } |
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706 update_position(s, len); |
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707 } |
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708 |
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709 // rotate_log must be called from VMThread at safepoint. In case need change parameters |
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710 // for gc log rotation from thread other than VMThread, a sub type of VM_Operation |
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711 // should be created and be submitted to VMThread's operation queue. DO NOT call this |
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712 // function directly. Currently, it is safe to rotate log at safepoint through VMThread. |
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713 // That is, no mutator threads and concurrent GC threads run parallel with VMThread to |
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714 // write to gc log file at safepoint. If in future, changes made for mutator threads or |
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715 // concurrent GC threads to run parallel with VMThread at safepoint, write and rotate_log |
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716 // must be synchronized. |
| 17827 | 717 void gcLogFileStream::rotate_log(bool force, outputStream* out) { |
| 20734 | 718 char time_msg[O_BUFLEN]; |
| 12215 | 719 char time_str[EXTRACHARLEN]; |
| 20734 | 720 char current_file_name[JVM_MAXPATHLEN]; |
| 721 char renamed_file_name[JVM_MAXPATHLEN]; | |
| 12215 | 722 |
| 17827 | 723 if (!should_rotate(force)) { |
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724 return; |
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725 } |
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726 |
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727 #ifdef ASSERT |
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728 Thread *thread = Thread::current(); |
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729 assert(thread == NULL || |
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730 (thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()), |
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731 "Must be VMThread at safepoint"); |
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732 #endif |
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733 if (NumberOfGCLogFiles == 1) { |
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734 // rotate in same file |
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735 rewind(); |
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736 _bytes_written = 0L; |
| 12215 | 737 jio_snprintf(time_msg, sizeof(time_msg), "File %s rotated at %s\n", |
| 738 _file_name, os::local_time_string((char *)time_str, sizeof(time_str))); | |
| 739 write(time_msg, strlen(time_msg)); | |
| 17827 | 740 |
| 741 if (out != NULL) { | |
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742 out->print("%s", time_msg); |
| 17827 | 743 } |
| 744 | |
| 12215 | 745 dump_loggc_header(); |
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746 return; |
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747 } |
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748 |
| 12215 | 749 #if defined(_WINDOWS) |
| 750 #ifndef F_OK | |
| 751 #define F_OK 0 | |
| 752 #endif | |
| 753 #endif // _WINDOWS | |
| 754 | |
| 755 // rotate file in names extended_filename.0, extended_filename.1, ..., | |
| 756 // extended_filename.<NumberOfGCLogFiles - 1>. Current rotation file name will | |
| 757 // have a form of extended_filename.<i>.current where i is the current rotation | |
| 758 // file number. After it reaches max file size, the file will be saved and renamed | |
| 759 // with .current removed from its tail. | |
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760 if (_file != NULL) { |
| 20734 | 761 jio_snprintf(renamed_file_name, JVM_MAXPATHLEN, "%s.%d", |
| 12215 | 762 _file_name, _cur_file_num); |
| 20734 | 763 int result = jio_snprintf(current_file_name, JVM_MAXPATHLEN, |
| 764 "%s.%d" CURRENTAPPX, _file_name, _cur_file_num); | |
| 765 if (result >= JVM_MAXPATHLEN) { | |
| 766 warning("Cannot create new log file name: %s: file name is too long.\n", current_file_name); | |
| 767 return; | |
| 768 } | |
| 17827 | 769 |
| 770 const char* msg = force ? "GC log rotation request has been received." | |
| 771 : "GC log file has reached the maximum size."; | |
| 772 jio_snprintf(time_msg, sizeof(time_msg), "%s %s Saved as %s\n", | |
| 773 os::local_time_string((char *)time_str, sizeof(time_str)), | |
| 774 msg, renamed_file_name); | |
| 12215 | 775 write(time_msg, strlen(time_msg)); |
| 776 | |
| 17827 | 777 if (out != NULL) { |
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778 out->print("%s", time_msg); |
| 17827 | 779 } |
| 780 | |
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781 fclose(_file); |
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782 _file = NULL; |
| 12215 | 783 |
| 784 bool can_rename = true; | |
| 785 if (access(current_file_name, F_OK) != 0) { | |
| 786 // current file does not exist? | |
| 787 warning("No source file exists, cannot rename\n"); | |
| 788 can_rename = false; | |
| 789 } | |
| 790 if (can_rename) { | |
| 791 if (access(renamed_file_name, F_OK) == 0) { | |
| 792 if (remove(renamed_file_name) != 0) { | |
| 793 warning("Could not delete existing file %s\n", renamed_file_name); | |
| 794 can_rename = false; | |
| 795 } | |
| 796 } else { | |
| 797 // file does not exist, ok to rename | |
| 798 } | |
| 799 } | |
| 800 if (can_rename && rename(current_file_name, renamed_file_name) != 0) { | |
| 801 warning("Could not rename %s to %s\n", _file_name, renamed_file_name); | |
| 802 } | |
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803 } |
| 12215 | 804 |
| 805 _cur_file_num++; | |
| 806 if (_cur_file_num > NumberOfGCLogFiles - 1) _cur_file_num = 0; | |
| 20734 | 807 int result = jio_snprintf(current_file_name, JVM_MAXPATHLEN, "%s.%d" CURRENTAPPX, |
| 12215 | 808 _file_name, _cur_file_num); |
| 20734 | 809 if (result >= JVM_MAXPATHLEN) { |
| 810 warning("Cannot create new log file name: %s: file name is too long.\n", current_file_name); | |
| 811 return; | |
| 812 } | |
| 813 | |
| 12215 | 814 _file = fopen(current_file_name, "w"); |
| 815 | |
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816 if (_file != NULL) { |
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817 _bytes_written = 0L; |
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818 _need_close = true; |
| 12215 | 819 // reuse current_file_name for time_msg |
| 20734 | 820 jio_snprintf(current_file_name, JVM_MAXPATHLEN, |
| 12215 | 821 "%s.%d", _file_name, _cur_file_num); |
| 822 jio_snprintf(time_msg, sizeof(time_msg), "%s GC log file created %s\n", | |
| 20734 | 823 os::local_time_string((char *)time_str, sizeof(time_str)), current_file_name); |
| 12215 | 824 write(time_msg, strlen(time_msg)); |
| 17827 | 825 |
| 826 if (out != NULL) { | |
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827 out->print("%s", time_msg); |
| 17827 | 828 } |
| 829 | |
| 12215 | 830 dump_loggc_header(); |
| 831 // remove the existing file | |
| 832 if (access(current_file_name, F_OK) == 0) { | |
| 833 if (remove(current_file_name) != 0) { | |
| 834 warning("Could not delete existing file %s\n", current_file_name); | |
| 835 } | |
| 836 } | |
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837 } else { |
| 12215 | 838 warning("failed to open rotation log file %s due to %s\n" |
| 839 "Turned off GC log file rotation\n", | |
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840 _file_name, strerror(errno)); |
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841 _need_close = false; |
| 12215 | 842 FLAG_SET_DEFAULT(UseGCLogFileRotation, false); |
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843 } |
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844 } |
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845 |
| 0 | 846 defaultStream* defaultStream::instance = NULL; |
| 847 int defaultStream::_output_fd = 1; | |
| 848 int defaultStream::_error_fd = 2; | |
| 849 FILE* defaultStream::_output_stream = stdout; | |
| 850 FILE* defaultStream::_error_stream = stderr; | |
| 851 | |
| 852 #define LOG_MAJOR_VERSION 160 | |
| 853 #define LOG_MINOR_VERSION 1 | |
| 854 | |
| 855 void defaultStream::init() { | |
| 856 _inited = true; | |
| 857 if (LogVMOutput || LogCompilation) { | |
| 858 init_log(); | |
| 859 } | |
| 860 } | |
| 861 | |
| 862 bool defaultStream::has_log_file() { | |
| 863 // lazily create log file (at startup, LogVMOutput is false even | |
| 864 // if +LogVMOutput is used, because the flags haven't been parsed yet) | |
| 865 // For safer printing during fatal error handling, do not init logfile | |
| 866 // if a VM error has been reported. | |
| 867 if (!_inited && !is_error_reported()) init(); | |
| 868 return _log_file != NULL; | |
| 869 } | |
| 870 | |
| 20734 | 871 fileStream* defaultStream::open_file(const char* log_name) { |
| 872 const char* try_name = make_log_name(log_name, NULL); | |
| 873 if (try_name == NULL) { | |
| 874 warning("Cannot open file %s: file name is too long.\n", log_name); | |
| 875 return NULL; | |
| 876 } | |
| 877 | |
| 878 fileStream* file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); | |
| 879 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); | |
| 880 if (file->is_open()) { | |
| 881 return file; | |
| 882 } | |
| 883 | |
| 884 // Try again to open the file in the temp directory. | |
| 885 delete file; | |
| 886 char warnbuf[O_BUFLEN*2]; | |
| 887 jio_snprintf(warnbuf, sizeof(warnbuf), "Warning: Cannot open log file: %s\n", log_name); | |
| 888 // Note: This feature is for maintainer use only. No need for L10N. | |
| 889 jio_print(warnbuf); | |
| 890 try_name = make_log_name(log_name, os::get_temp_directory()); | |
| 891 if (try_name == NULL) { | |
| 892 warning("Cannot open file %s: file name is too long for directory %s.\n", log_name, os::get_temp_directory()); | |
| 893 return NULL; | |
| 894 } | |
| 895 | |
| 896 jio_snprintf(warnbuf, sizeof(warnbuf), | |
| 897 "Warning: Forcing option -XX:LogFile=%s\n", try_name); | |
| 898 jio_print(warnbuf); | |
| 899 | |
| 900 file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); | |
| 901 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); | |
| 902 if (file->is_open()) { | |
| 903 return file; | |
| 904 } | |
| 905 | |
| 906 delete file; | |
| 907 return NULL; | |
| 908 } | |
| 909 | |
| 0 | 910 void defaultStream::init_log() { |
| 911 // %%% Need a MutexLocker? | |
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912 const char* log_name = LogFile != NULL ? LogFile : "hotspot_%p.log"; |
| 20734 | 913 fileStream* file = open_file(log_name); |
| 914 | |
| 915 if (file != NULL) { | |
| 916 _log_file = file; | |
| 917 _outer_xmlStream = new(ResourceObj::C_HEAP, mtInternal) xmlStream(file); | |
| 918 start_log(); | |
| 919 } else { | |
| 920 // and leave xtty as NULL | |
| 921 LogVMOutput = false; | |
| 922 DisplayVMOutput = true; | |
| 923 LogCompilation = false; | |
| 0 | 924 } |
| 20734 | 925 } |
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926 |
| 20734 | 927 void defaultStream::start_log() { |
| 928 xmlStream*xs = _outer_xmlStream; | |
| 0 | 929 if (this == tty) xtty = xs; |
| 930 // Write XML header. | |
| 931 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>"); | |
| 932 // (For now, don't bother to issue a DTD for this private format.) | |
| 933 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); | |
| 934 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if | |
| 935 // we ever get round to introduce that method on the os class | |
| 936 xs->head("hotspot_log version='%d %d'" | |
| 937 " process='%d' time_ms='"INT64_FORMAT"'", | |
| 938 LOG_MAJOR_VERSION, LOG_MINOR_VERSION, | |
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939 os::current_process_id(), (int64_t)time_ms); |
| 0 | 940 // Write VM version header immediately. |
| 941 xs->head("vm_version"); | |
| 942 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); | |
| 943 xs->tail("name"); | |
| 944 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); | |
| 945 xs->tail("release"); | |
| 946 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); | |
| 947 xs->tail("info"); | |
| 948 xs->tail("vm_version"); | |
| 949 // Record information about the command-line invocation. | |
| 950 xs->head("vm_arguments"); // Cf. Arguments::print_on() | |
| 951 if (Arguments::num_jvm_flags() > 0) { | |
| 952 xs->head("flags"); | |
| 953 Arguments::print_jvm_flags_on(xs->text()); | |
| 954 xs->tail("flags"); | |
| 955 } | |
| 956 if (Arguments::num_jvm_args() > 0) { | |
| 957 xs->head("args"); | |
| 958 Arguments::print_jvm_args_on(xs->text()); | |
| 959 xs->tail("args"); | |
| 960 } | |
| 961 if (Arguments::java_command() != NULL) { | |
| 962 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); | |
| 963 xs->tail("command"); | |
| 964 } | |
| 965 if (Arguments::sun_java_launcher() != NULL) { | |
| 966 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); | |
| 967 xs->tail("launcher"); | |
| 968 } | |
| 969 if (Arguments::system_properties() != NULL) { | |
| 970 xs->head("properties"); | |
| 971 // Print it as a java-style property list. | |
| 972 // System properties don't generally contain newlines, so don't bother with unparsing. | |
| 973 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
| 974 xs->text()->print_cr("%s=%s", p->key(), p->value()); | |
| 975 } | |
| 976 xs->tail("properties"); | |
| 977 } | |
| 978 xs->tail("vm_arguments"); | |
| 979 // tty output per se is grouped under the <tty>...</tty> element. | |
| 980 xs->head("tty"); | |
| 981 // All further non-markup text gets copied to the tty: | |
| 982 xs->_text = this; // requires friend declaration! | |
| 983 } | |
| 984 | |
| 985 // finish_log() is called during normal VM shutdown. finish_log_on_error() is | |
| 986 // called by ostream_abort() after a fatal error. | |
| 987 // | |
| 988 void defaultStream::finish_log() { | |
| 989 xmlStream* xs = _outer_xmlStream; | |
| 990 xs->done("tty"); | |
| 991 | |
| 992 // Other log forks are appended here, at the End of Time: | |
| 993 CompileLog::finish_log(xs->out()); // write compile logging, if any, now | |
| 994 | |
| 995 xs->done("hotspot_log"); | |
| 996 xs->flush(); | |
| 997 | |
| 998 fileStream* file = _log_file; | |
| 999 _log_file = NULL; | |
| 1000 | |
| 1001 delete _outer_xmlStream; | |
| 1002 _outer_xmlStream = NULL; | |
| 1003 | |
| 1004 file->flush(); | |
| 1005 delete file; | |
| 1006 } | |
| 1007 | |
| 1008 void defaultStream::finish_log_on_error(char *buf, int buflen) { | |
| 1009 xmlStream* xs = _outer_xmlStream; | |
| 1010 | |
| 1011 if (xs && xs->out()) { | |
| 1012 | |
| 1013 xs->done_raw("tty"); | |
| 1014 | |
| 1015 // Other log forks are appended here, at the End of Time: | |
| 1016 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now | |
| 1017 | |
| 1018 xs->done_raw("hotspot_log"); | |
| 1019 xs->flush(); | |
| 1020 | |
| 1021 fileStream* file = _log_file; | |
| 1022 _log_file = NULL; | |
| 1023 _outer_xmlStream = NULL; | |
| 1024 | |
| 1025 if (file) { | |
| 1026 file->flush(); | |
| 1027 | |
| 1028 // Can't delete or close the file because delete and fclose aren't | |
| 1029 // async-safe. We are about to die, so leave it to the kernel. | |
| 1030 // delete file; | |
| 1031 } | |
| 1032 } | |
| 1033 } | |
| 1034 | |
| 1035 intx defaultStream::hold(intx writer_id) { | |
| 1036 bool has_log = has_log_file(); // check before locking | |
| 1037 if (// impossible, but who knows? | |
| 1038 writer_id == NO_WRITER || | |
| 1039 | |
| 1040 // bootstrap problem | |
| 1041 tty_lock == NULL || | |
| 1042 | |
| 1043 // can't grab a lock or call Thread::current() if TLS isn't initialized | |
| 1044 ThreadLocalStorage::thread() == NULL || | |
| 1045 | |
| 1046 // developer hook | |
| 1047 !SerializeVMOutput || | |
| 1048 | |
| 1049 // VM already unhealthy | |
| 1050 is_error_reported() || | |
| 1051 | |
| 1052 // safepoint == global lock (for VM only) | |
| 1053 (SafepointSynchronize::is_synchronizing() && | |
| 1054 Thread::current()->is_VM_thread()) | |
| 1055 ) { | |
| 1056 // do not attempt to lock unless we know the thread and the VM is healthy | |
| 1057 return NO_WRITER; | |
| 1058 } | |
| 1059 if (_writer == writer_id) { | |
| 1060 // already held, no need to re-grab the lock | |
| 1061 return NO_WRITER; | |
| 1062 } | |
| 1063 tty_lock->lock_without_safepoint_check(); | |
| 1064 // got the lock | |
| 1065 if (writer_id != _last_writer) { | |
| 1066 if (has_log) { | |
| 1067 _log_file->bol(); | |
| 1068 // output a hint where this output is coming from: | |
| 6843 | 1069 _log_file->print_cr("<writer thread='" UINTX_FORMAT "'/>", writer_id); |
| 0 | 1070 } |
| 1071 _last_writer = writer_id; | |
| 1072 } | |
| 1073 _writer = writer_id; | |
| 1074 return writer_id; | |
| 1075 } | |
| 1076 | |
| 1077 void defaultStream::release(intx holder) { | |
| 1078 if (holder == NO_WRITER) { | |
| 1079 // nothing to release: either a recursive lock, or we scribbled (too bad) | |
| 1080 return; | |
| 1081 } | |
| 1082 if (_writer != holder) { | |
| 1083 return; // already unlocked, perhaps via break_tty_lock_for_safepoint | |
| 1084 } | |
| 1085 _writer = NO_WRITER; | |
| 1086 tty_lock->unlock(); | |
| 1087 } | |
| 1088 | |
| 1089 | |
| 1090 // Yuck: jio_print does not accept char*/len. | |
| 1091 static void call_jio_print(const char* s, size_t len) { | |
| 1092 char buffer[O_BUFLEN+100]; | |
| 1093 if (len > sizeof(buffer)-1) { | |
| 1094 warning("increase O_BUFLEN in ostream.cpp -- output truncated"); | |
| 1095 len = sizeof(buffer)-1; | |
| 1096 } | |
| 1097 strncpy(buffer, s, len); | |
| 1098 buffer[len] = '\0'; | |
| 1099 jio_print(buffer); | |
| 1100 } | |
| 1101 | |
| 1102 | |
| 1103 void defaultStream::write(const char* s, size_t len) { | |
| 1104 intx thread_id = os::current_thread_id(); | |
| 1105 intx holder = hold(thread_id); | |
| 1106 | |
| 1107 if (DisplayVMOutput && | |
| 1108 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { | |
| 1109 // print to output stream. It can be redirected by a vfprintf hook | |
| 1110 if (s[len] == '\0') { | |
| 1111 jio_print(s); | |
| 1112 } else { | |
| 1113 call_jio_print(s, len); | |
| 1114 } | |
| 1115 } | |
| 1116 | |
| 1117 // print to log file | |
| 1118 if (has_log_file()) { | |
| 1119 int nl0 = _newlines; | |
| 1120 xmlTextStream::write(s, len); | |
| 1121 // flush the log file too, if there were any newlines | |
| 1122 if (nl0 != _newlines){ | |
| 1123 flush(); | |
| 1124 } | |
| 1125 } else { | |
| 1126 update_position(s, len); | |
| 1127 } | |
| 1128 | |
| 1129 release(holder); | |
| 1130 } | |
| 1131 | |
| 1132 intx ttyLocker::hold_tty() { | |
| 1133 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; | |
| 1134 intx thread_id = os::current_thread_id(); | |
| 1135 return defaultStream::instance->hold(thread_id); | |
| 1136 } | |
| 1137 | |
| 1138 void ttyLocker::release_tty(intx holder) { | |
| 1139 if (holder == defaultStream::NO_WRITER) return; | |
| 1140 defaultStream::instance->release(holder); | |
| 1141 } | |
| 1142 | |
|
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1143 bool ttyLocker::release_tty_if_locked() { |
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1144 intx thread_id = os::current_thread_id(); |
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1145 if (defaultStream::instance->writer() == thread_id) { |
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1146 // release the lock and return true so callers know if was |
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1147 // previously held. |
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1148 release_tty(thread_id); |
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1149 return true; |
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1150 } |
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1151 return false; |
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1152 } |
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1153 |
| 0 | 1154 void ttyLocker::break_tty_lock_for_safepoint(intx holder) { |
| 1155 if (defaultStream::instance != NULL && | |
| 1156 defaultStream::instance->writer() == holder) { | |
| 1157 if (xtty != NULL) { | |
| 1158 xtty->print_cr("<!-- safepoint while printing -->"); | |
| 1159 } | |
| 1160 defaultStream::instance->release(holder); | |
| 1161 } | |
| 1162 // (else there was no lock to break) | |
| 1163 } | |
| 1164 | |
| 1165 void ostream_init() { | |
| 1166 if (defaultStream::instance == NULL) { | |
| 6197 | 1167 defaultStream::instance = new(ResourceObj::C_HEAP, mtInternal) defaultStream(); |
| 0 | 1168 tty = defaultStream::instance; |
| 1169 | |
| 1170 // We want to ensure that time stamps in GC logs consider time 0 | |
| 1171 // the time when the JVM is initialized, not the first time we ask | |
| 1172 // for a time stamp. So, here, we explicitly update the time stamp | |
| 1173 // of tty. | |
| 1174 tty->time_stamp().update_to(1); | |
| 1175 } | |
| 1176 } | |
| 1177 | |
| 1178 void ostream_init_log() { | |
| 1179 // For -Xloggc:<file> option - called in runtime/thread.cpp | |
| 1180 // Note : this must be called AFTER ostream_init() | |
| 1181 | |
| 1182 gclog_or_tty = tty; // default to tty | |
| 1183 if (Arguments::gc_log_filename() != NULL) { | |
| 12215 | 1184 fileStream * gclog = new(ResourceObj::C_HEAP, mtInternal) |
| 1185 gcLogFileStream(Arguments::gc_log_filename()); | |
| 0 | 1186 if (gclog->is_open()) { |
| 1187 // now we update the time stamp of the GC log to be synced up | |
| 1188 // with tty. | |
| 1189 gclog->time_stamp().update_to(tty->time_stamp().ticks()); | |
| 1190 } | |
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1191 gclog_or_tty = gclog; |
| 0 | 1192 } |
| 1193 | |
| 1194 // If we haven't lazily initialized the logfile yet, do it now, | |
| 1195 // to avoid the possibility of lazy initialization during a VM | |
| 1196 // crash, which can affect the stability of the fatal error handler. | |
| 1197 defaultStream::instance->has_log_file(); | |
| 1198 } | |
| 1199 | |
| 1200 // ostream_exit() is called during normal VM exit to finish log files, flush | |
| 1201 // output and free resource. | |
| 1202 void ostream_exit() { | |
| 1203 static bool ostream_exit_called = false; | |
| 1204 if (ostream_exit_called) return; | |
| 1205 ostream_exit_called = true; | |
| 1206 if (gclog_or_tty != tty) { | |
| 1207 delete gclog_or_tty; | |
| 1208 } | |
| 1209 { | |
| 1210 // we temporaly disable PrintMallocFree here | |
| 1211 // as otherwise it'll lead to using of almost deleted | |
| 1212 // tty or defaultStream::instance in logging facility | |
| 1213 // of HeapFree(), see 6391258 | |
| 1214 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) | |
| 1215 if (tty != defaultStream::instance) { | |
| 1216 delete tty; | |
| 1217 } | |
| 1218 if (defaultStream::instance != NULL) { | |
| 1219 delete defaultStream::instance; | |
| 1220 } | |
| 1221 } | |
| 1222 tty = NULL; | |
| 1223 xtty = NULL; | |
| 1224 gclog_or_tty = NULL; | |
| 1225 defaultStream::instance = NULL; | |
| 1226 } | |
| 1227 | |
| 1228 // ostream_abort() is called by os::abort() when VM is about to die. | |
| 1229 void ostream_abort() { | |
| 1230 // Here we can't delete gclog_or_tty and tty, just flush their output | |
| 1231 if (gclog_or_tty) gclog_or_tty->flush(); | |
| 1232 if (tty) tty->flush(); | |
| 1233 | |
| 1234 if (defaultStream::instance != NULL) { | |
| 1235 static char buf[4096]; | |
| 1236 defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); | |
| 1237 } | |
| 1238 } | |
| 1239 | |
| 1240 staticBufferStream::staticBufferStream(char* buffer, size_t buflen, | |
| 1241 outputStream *outer_stream) { | |
| 1242 _buffer = buffer; | |
| 1243 _buflen = buflen; | |
| 1244 _outer_stream = outer_stream; | |
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1245 // compile task prints time stamp relative to VM start |
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1246 _stamp.update_to(1); |
| 0 | 1247 } |
| 1248 | |
| 1249 void staticBufferStream::write(const char* c, size_t len) { | |
| 1250 _outer_stream->print_raw(c, (int)len); | |
| 1251 } | |
| 1252 | |
| 1253 void staticBufferStream::flush() { | |
| 1254 _outer_stream->flush(); | |
| 1255 } | |
| 1256 | |
| 1257 void staticBufferStream::print(const char* format, ...) { | |
| 1258 va_list ap; | |
| 1259 va_start(ap, format); | |
| 1260 size_t len; | |
| 1261 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); | |
| 1262 write(str, len); | |
| 1263 va_end(ap); | |
| 1264 } | |
| 1265 | |
| 1266 void staticBufferStream::print_cr(const char* format, ...) { | |
| 1267 va_list ap; | |
| 1268 va_start(ap, format); | |
| 1269 size_t len; | |
| 1270 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); | |
| 1271 write(str, len); | |
| 1272 va_end(ap); | |
| 1273 } | |
| 1274 | |
| 1275 void staticBufferStream::vprint(const char *format, va_list argptr) { | |
| 1276 size_t len; | |
| 1277 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); | |
| 1278 write(str, len); | |
| 1279 } | |
| 1280 | |
| 1281 void staticBufferStream::vprint_cr(const char* format, va_list argptr) { | |
| 1282 size_t len; | |
| 1283 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); | |
| 1284 write(str, len); | |
| 1285 } | |
| 1286 | |
| 222 | 1287 bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { |
| 0 | 1288 buffer_length = initial_size; |
| 6197 | 1289 buffer = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); |
| 0 | 1290 buffer_pos = 0; |
| 1291 buffer_fixed = false; | |
| 222 | 1292 buffer_max = bufmax; |
| 0 | 1293 } |
| 1294 | |
| 222 | 1295 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { |
| 0 | 1296 buffer_length = fixed_buffer_size; |
| 1297 buffer = fixed_buffer; | |
| 1298 buffer_pos = 0; | |
| 1299 buffer_fixed = true; | |
| 222 | 1300 buffer_max = bufmax; |
| 0 | 1301 } |
| 1302 | |
| 1303 void bufferedStream::write(const char* s, size_t len) { | |
| 222 | 1304 |
| 1305 if(buffer_pos + len > buffer_max) { | |
| 1306 flush(); | |
| 1307 } | |
| 1308 | |
| 0 | 1309 size_t end = buffer_pos + len; |
| 1310 if (end >= buffer_length) { | |
| 1311 if (buffer_fixed) { | |
| 1312 // if buffer cannot resize, silently truncate | |
| 1313 len = buffer_length - buffer_pos - 1; | |
| 1314 } else { | |
| 1315 // For small overruns, double the buffer. For larger ones, | |
| 1316 // increase to the requested size. | |
| 1317 if (end < buffer_length * 2) { | |
| 1318 end = buffer_length * 2; | |
| 1319 } | |
| 6197 | 1320 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end, mtInternal); |
| 0 | 1321 buffer_length = end; |
| 1322 } | |
| 1323 } | |
| 1324 memcpy(buffer + buffer_pos, s, len); | |
| 1325 buffer_pos += len; | |
| 1326 update_position(s, len); | |
| 1327 } | |
| 1328 | |
| 1329 char* bufferedStream::as_string() { | |
| 1330 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
| 1331 strncpy(copy, buffer, buffer_pos); | |
| 1332 copy[buffer_pos] = 0; // terminating null | |
| 1333 return copy; | |
| 1334 } | |
| 1335 | |
| 1336 bufferedStream::~bufferedStream() { | |
| 1337 if (!buffer_fixed) { | |
| 6197 | 1338 FREE_C_HEAP_ARRAY(char, buffer, mtInternal); |
| 0 | 1339 } |
| 1340 } | |
| 1341 | |
| 1342 #ifndef PRODUCT | |
| 1343 | |
| 14411 | 1344 #if defined(SOLARIS) || defined(LINUX) || defined(AIX) || defined(_ALLBSD_SOURCE) |
| 0 | 1345 #include <sys/types.h> |
| 1346 #include <sys/socket.h> | |
| 1347 #include <netinet/in.h> | |
| 1348 #include <arpa/inet.h> | |
| 1349 #endif | |
| 1350 | |
| 1351 // Network access | |
| 222 | 1352 networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { |
| 0 | 1353 |
| 1354 _socket = -1; | |
| 1355 | |
|
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1356 int result = os::socket(AF_INET, SOCK_STREAM, 0); |
| 0 | 1357 if (result <= 0) { |
| 1358 assert(false, "Socket could not be created!"); | |
| 1359 } else { | |
| 1360 _socket = result; | |
| 1361 } | |
| 1362 } | |
| 1363 | |
| 1364 int networkStream::read(char *buf, size_t len) { | |
|
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1365 return os::recv(_socket, buf, (int)len, 0); |
| 0 | 1366 } |
| 1367 | |
| 1368 void networkStream::flush() { | |
| 1369 if (size() != 0) { | |
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1370 int result = os::raw_send(_socket, (char *)base(), size(), 0); |
| 222 | 1371 assert(result != -1, "connection error"); |
| 1372 assert(result == (int)size(), "didn't send enough data"); | |
| 0 | 1373 } |
| 1374 reset(); | |
| 1375 } | |
| 1376 | |
| 1377 networkStream::~networkStream() { | |
| 1378 close(); | |
| 1379 } | |
| 1380 | |
| 1381 void networkStream::close() { | |
| 1382 if (_socket != -1) { | |
| 1383 flush(); | |
|
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1384 os::socket_close(_socket); |
| 0 | 1385 _socket = -1; |
| 1386 } | |
| 1387 } | |
| 1388 | |
| 1389 bool networkStream::connect(const char *ip, short port) { | |
| 1390 | |
| 1391 struct sockaddr_in server; | |
| 1392 server.sin_family = AF_INET; | |
| 1393 server.sin_port = htons(port); | |
| 1394 | |
| 1395 server.sin_addr.s_addr = inet_addr(ip); | |
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1396 if (server.sin_addr.s_addr == (uint32_t)-1) { |
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1397 struct hostent* host = os::get_host_by_name((char*)ip); |
| 0 | 1398 if (host != NULL) { |
| 1399 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); | |
| 1400 } else { | |
| 1401 return false; | |
| 1402 } | |
| 1403 } | |
| 1404 | |
| 1405 | |
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1406 int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); |
| 0 | 1407 return (result >= 0); |
| 1408 } | |
| 1409 | |
| 1410 #endif |