Mercurial > hg > truffle
annotate src/share/vm/utilities/ostream.cpp @ 12269:da051ce490eb
Merge
| author | adlertz |
|---|---|
| date | Thu, 19 Sep 2013 18:01:39 +0200 |
| parents | 621eda7235d2 01b268b3080a |
| children | cefad50507d8 bf8a21c3ab3b |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "compiler/compileLog.hpp" | |
| 27 #include "oops/oop.inline.hpp" | |
| 28 #include "runtime/arguments.hpp" | |
| 29 #include "utilities/defaultStream.hpp" | |
| 30 #include "utilities/ostream.hpp" | |
| 31 #include "utilities/top.hpp" | |
| 32 #include "utilities/xmlstream.hpp" | |
| 33 #ifdef TARGET_OS_FAMILY_linux | |
| 34 # include "os_linux.inline.hpp" | |
| 35 #endif | |
| 36 #ifdef TARGET_OS_FAMILY_solaris | |
| 37 # include "os_solaris.inline.hpp" | |
| 38 #endif | |
| 39 #ifdef TARGET_OS_FAMILY_windows | |
| 40 # include "os_windows.inline.hpp" | |
| 41 #endif | |
| 3960 | 42 #ifdef TARGET_OS_FAMILY_bsd |
| 43 # include "os_bsd.inline.hpp" | |
| 44 #endif | |
| 0 | 45 |
| 46 extern "C" void jio_print(const char* s); // Declarationtion of jvm method | |
| 47 | |
| 48 outputStream::outputStream(int width) { | |
| 49 _width = width; | |
| 50 _position = 0; | |
| 51 _newlines = 0; | |
| 52 _precount = 0; | |
| 53 _indentation = 0; | |
| 54 } | |
| 55 | |
| 56 outputStream::outputStream(int width, bool has_time_stamps) { | |
| 57 _width = width; | |
| 58 _position = 0; | |
| 59 _newlines = 0; | |
| 60 _precount = 0; | |
| 61 _indentation = 0; | |
| 62 if (has_time_stamps) _stamp.update(); | |
| 63 } | |
| 64 | |
| 65 void outputStream::update_position(const char* s, size_t len) { | |
| 66 for (size_t i = 0; i < len; i++) { | |
| 67 char ch = s[i]; | |
| 68 if (ch == '\n') { | |
| 69 _newlines += 1; | |
| 70 _precount += _position + 1; | |
| 71 _position = 0; | |
| 72 } else if (ch == '\t') { | |
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73 int tw = 8 - (_position & 7); |
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74 _position += tw; |
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75 _precount -= tw-1; // invariant: _precount + _position == total count |
| 0 | 76 } else { |
| 77 _position += 1; | |
| 78 } | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 // Execute a vsprintf, using the given buffer if necessary. | |
| 83 // Return a pointer to the formatted string. | |
| 84 const char* outputStream::do_vsnprintf(char* buffer, size_t buflen, | |
| 85 const char* format, va_list ap, | |
| 86 bool add_cr, | |
| 87 size_t& result_len) { | |
| 88 const char* result; | |
| 89 if (add_cr) buflen--; | |
| 90 if (!strchr(format, '%')) { | |
| 91 // constant format string | |
| 92 result = format; | |
| 93 result_len = strlen(result); | |
| 94 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
| 95 } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') { | |
| 96 // trivial copy-through format string | |
| 97 result = va_arg(ap, const char*); | |
| 98 result_len = strlen(result); | |
| 99 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
| 100 } else if (vsnprintf(buffer, buflen, format, ap) >= 0) { | |
| 101 result = buffer; | |
| 102 result_len = strlen(result); | |
| 103 } else { | |
| 104 DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");) | |
| 105 result = buffer; | |
| 106 result_len = buflen - 1; | |
| 107 buffer[result_len] = 0; | |
| 108 } | |
| 109 if (add_cr) { | |
| 110 if (result != buffer) { | |
| 111 strncpy(buffer, result, buflen); | |
| 112 result = buffer; | |
| 113 } | |
| 114 buffer[result_len++] = '\n'; | |
| 115 buffer[result_len] = 0; | |
| 116 } | |
| 117 return result; | |
| 118 } | |
| 119 | |
| 120 void outputStream::print(const char* format, ...) { | |
| 121 char buffer[O_BUFLEN]; | |
| 122 va_list ap; | |
| 123 va_start(ap, format); | |
| 124 size_t len; | |
| 125 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len); | |
| 126 write(str, len); | |
| 127 va_end(ap); | |
| 128 } | |
| 129 | |
| 130 void outputStream::print_cr(const char* format, ...) { | |
| 131 char buffer[O_BUFLEN]; | |
| 132 va_list ap; | |
| 133 va_start(ap, format); | |
| 134 size_t len; | |
| 135 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len); | |
| 136 write(str, len); | |
| 137 va_end(ap); | |
| 138 } | |
| 139 | |
| 140 void outputStream::vprint(const char *format, va_list argptr) { | |
| 141 char buffer[O_BUFLEN]; | |
| 142 size_t len; | |
| 143 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len); | |
| 144 write(str, len); | |
| 145 } | |
| 146 | |
| 147 void outputStream::vprint_cr(const char* format, va_list argptr) { | |
| 148 char buffer[O_BUFLEN]; | |
| 149 size_t len; | |
| 150 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); | |
| 151 write(str, len); | |
| 152 } | |
| 153 | |
| 154 void outputStream::fill_to(int col) { | |
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155 int need_fill = col - position(); |
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156 sp(need_fill); |
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157 } |
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158 |
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159 void outputStream::move_to(int col, int slop, int min_space) { |
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160 if (position() >= col + slop) |
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161 cr(); |
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162 int need_fill = col - position(); |
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163 if (need_fill < min_space) |
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164 need_fill = min_space; |
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165 sp(need_fill); |
| 0 | 166 } |
| 167 | |
| 168 void outputStream::put(char ch) { | |
| 169 assert(ch != 0, "please fix call site"); | |
| 170 char buf[] = { ch, '\0' }; | |
| 171 write(buf, 1); | |
| 172 } | |
| 173 | |
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174 #define SP_USE_TABS false |
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175 |
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176 void outputStream::sp(int count) { |
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177 if (count < 0) return; |
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178 if (SP_USE_TABS && count >= 8) { |
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179 int target = position() + count; |
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180 while (count >= 8) { |
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181 this->write("\t", 1); |
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182 count -= 8; |
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183 } |
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184 count = target - position(); |
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185 } |
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186 while (count > 0) { |
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187 int nw = (count > 8) ? 8 : count; |
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188 this->write(" ", nw); |
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189 count -= nw; |
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190 } |
| 0 | 191 } |
| 192 | |
| 193 void outputStream::cr() { | |
| 194 this->write("\n", 1); | |
| 195 } | |
| 196 | |
| 197 void outputStream::stamp() { | |
| 198 if (! _stamp.is_updated()) { | |
| 199 _stamp.update(); // start at 0 on first call to stamp() | |
| 200 } | |
| 201 | |
| 202 // outputStream::stamp() may get called by ostream_abort(), use snprintf | |
| 203 // to avoid allocating large stack buffer in print(). | |
| 204 char buf[40]; | |
| 205 jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds()); | |
| 206 print_raw(buf); | |
| 207 } | |
| 208 | |
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209 void outputStream::stamp(bool guard, |
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210 const char* prefix, |
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211 const char* suffix) { |
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212 if (!guard) { |
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213 return; |
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214 } |
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215 print_raw(prefix); |
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216 stamp(); |
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217 print_raw(suffix); |
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218 } |
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219 |
| 0 | 220 void outputStream::date_stamp(bool guard, |
| 221 const char* prefix, | |
| 222 const char* suffix) { | |
| 223 if (!guard) { | |
| 224 return; | |
| 225 } | |
| 226 print_raw(prefix); | |
| 227 static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz"; | |
| 228 static const int buffer_length = 32; | |
| 229 char buffer[buffer_length]; | |
| 230 const char* iso8601_result = os::iso8601_time(buffer, buffer_length); | |
| 231 if (iso8601_result != NULL) { | |
| 232 print_raw(buffer); | |
| 233 } else { | |
| 234 print_raw(error_time); | |
| 235 } | |
| 236 print_raw(suffix); | |
| 237 return; | |
| 238 } | |
| 239 | |
| 6605 | 240 outputStream& outputStream::indent() { |
| 0 | 241 while (_position < _indentation) sp(); |
| 6605 | 242 return *this; |
| 0 | 243 } |
| 244 | |
| 245 void outputStream::print_jlong(jlong value) { | |
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246 print(JLONG_FORMAT, value); |
| 0 | 247 } |
| 248 | |
| 249 void outputStream::print_julong(julong value) { | |
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250 print(JULONG_FORMAT, value); |
| 0 | 251 } |
| 252 | |
| 6605 | 253 /** |
| 254 * This prints out hex data in a 'windbg' or 'xxd' form, where each line is: | |
| 255 * <hex-address>: 8 * <hex-halfword> <ascii translation (optional)> | |
| 256 * example: | |
| 257 * 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000 .DOF............ | |
| 258 * 0000010: 0000 0000 0000 0040 0000 0020 0000 0005 .......@... .... | |
| 259 * 0000020: 0000 0000 0000 0040 0000 0000 0000 015d .......@.......] | |
| 260 * ... | |
| 261 * | |
| 262 * indent is applied to each line. Ends with a CR. | |
| 263 */ | |
| 264 void outputStream::print_data(void* data, size_t len, bool with_ascii) { | |
| 265 size_t limit = (len + 16) / 16 * 16; | |
| 266 for (size_t i = 0; i < limit; ++i) { | |
| 267 if (i % 16 == 0) { | |
| 268 indent().print("%07x:", i); | |
| 269 } | |
| 270 if (i % 2 == 0) { | |
| 271 print(" "); | |
| 272 } | |
| 273 if (i < len) { | |
| 274 print("%02x", ((unsigned char*)data)[i]); | |
| 275 } else { | |
| 276 print(" "); | |
| 277 } | |
| 278 if ((i + 1) % 16 == 0) { | |
| 279 if (with_ascii) { | |
| 280 print(" "); | |
| 281 for (size_t j = 0; j < 16; ++j) { | |
| 282 size_t idx = i + j - 15; | |
| 283 if (idx < len) { | |
| 284 char c = ((char*)data)[idx]; | |
| 285 print("%c", c >= 32 && c <= 126 ? c : '.'); | |
| 286 } | |
| 287 } | |
| 288 } | |
| 289 print_cr(""); | |
| 290 } | |
| 291 } | |
| 292 } | |
| 293 | |
| 0 | 294 stringStream::stringStream(size_t initial_size) : outputStream() { |
| 295 buffer_length = initial_size; | |
| 296 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); | |
| 297 buffer_pos = 0; | |
| 298 buffer_fixed = false; | |
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299 DEBUG_ONLY(rm = Thread::current()->current_resource_mark();) |
| 0 | 300 } |
| 301 | |
| 302 // useful for output to fixed chunks of memory, such as performance counters | |
| 303 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { | |
| 304 buffer_length = fixed_buffer_size; | |
| 305 buffer = fixed_buffer; | |
| 306 buffer_pos = 0; | |
| 307 buffer_fixed = true; | |
| 308 } | |
| 309 | |
| 310 void stringStream::write(const char* s, size_t len) { | |
| 311 size_t write_len = len; // number of non-null bytes to write | |
| 312 size_t end = buffer_pos + len + 1; // position after write and final '\0' | |
| 313 if (end > buffer_length) { | |
| 314 if (buffer_fixed) { | |
| 315 // if buffer cannot resize, silently truncate | |
| 316 end = buffer_length; | |
| 317 write_len = end - buffer_pos - 1; // leave room for the final '\0' | |
| 318 } else { | |
| 319 // For small overruns, double the buffer. For larger ones, | |
| 320 // increase to the requested size. | |
| 321 if (end < buffer_length * 2) { | |
| 322 end = buffer_length * 2; | |
| 323 } | |
| 324 char* oldbuf = buffer; | |
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325 assert(rm == NULL || Thread::current()->current_resource_mark() == rm, |
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326 "stringStream is re-allocated with a different ResourceMark"); |
| 0 | 327 buffer = NEW_RESOURCE_ARRAY(char, end); |
| 328 strncpy(buffer, oldbuf, buffer_pos); | |
| 329 buffer_length = end; | |
| 330 } | |
| 331 } | |
| 332 // invariant: buffer is always null-terminated | |
| 333 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); | |
| 334 buffer[buffer_pos + write_len] = 0; | |
| 335 strncpy(buffer + buffer_pos, s, write_len); | |
| 336 buffer_pos += write_len; | |
| 337 | |
| 338 // Note that the following does not depend on write_len. | |
| 339 // This means that position and count get updated | |
| 340 // even when overflow occurs. | |
| 341 update_position(s, len); | |
| 342 } | |
| 343 | |
| 344 char* stringStream::as_string() { | |
| 12215 | 345 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos + 1); |
| 0 | 346 strncpy(copy, buffer, buffer_pos); |
| 347 copy[buffer_pos] = 0; // terminating null | |
| 348 return copy; | |
| 349 } | |
| 350 | |
| 351 stringStream::~stringStream() {} | |
| 352 | |
| 353 xmlStream* xtty; | |
| 354 outputStream* tty; | |
| 355 outputStream* gclog_or_tty; | |
| 356 extern Mutex* tty_lock; | |
| 357 | |
| 12215 | 358 #define EXTRACHARLEN 32 |
| 359 #define CURRENTAPPX ".current" | |
| 360 #define FILENAMEBUFLEN 1024 | |
| 361 // convert YYYY-MM-DD HH:MM:SS to YYYY-MM-DD_HH-MM-SS | |
| 362 char* get_datetime_string(char *buf, size_t len) { | |
| 363 os::local_time_string(buf, len); | |
| 364 int i = (int)strlen(buf); | |
| 365 while (i-- >= 0) { | |
| 366 if (buf[i] == ' ') buf[i] = '_'; | |
| 367 else if (buf[i] == ':') buf[i] = '-'; | |
| 368 } | |
| 369 return buf; | |
| 370 } | |
| 371 | |
| 372 static const char* make_log_name_internal(const char* log_name, const char* force_directory, | |
| 373 int pid, const char* tms) { | |
| 374 const char* basename = log_name; | |
| 375 char file_sep = os::file_separator()[0]; | |
| 376 const char* cp; | |
| 377 char pid_text[32]; | |
| 378 | |
| 379 for (cp = log_name; *cp != '\0'; cp++) { | |
| 380 if (*cp == '/' || *cp == file_sep) { | |
| 381 basename = cp + 1; | |
| 382 } | |
| 383 } | |
| 384 const char* nametail = log_name; | |
| 385 // Compute buffer length | |
| 386 size_t buffer_length; | |
| 387 if (force_directory != NULL) { | |
| 388 buffer_length = strlen(force_directory) + strlen(os::file_separator()) + | |
| 389 strlen(basename) + 1; | |
| 390 } else { | |
| 391 buffer_length = strlen(log_name) + 1; | |
| 392 } | |
| 393 | |
| 394 // const char* star = strchr(basename, '*'); | |
| 395 const char* pts = strstr(basename, "%p"); | |
| 396 int pid_pos = (pts == NULL) ? -1 : (pts - nametail); | |
| 397 | |
| 398 if (pid_pos >= 0) { | |
| 399 jio_snprintf(pid_text, sizeof(pid_text), "pid%u", pid); | |
| 400 buffer_length += strlen(pid_text); | |
| 401 } | |
| 402 | |
| 403 pts = strstr(basename, "%t"); | |
| 404 int tms_pos = (pts == NULL) ? -1 : (pts - nametail); | |
| 405 if (tms_pos >= 0) { | |
| 406 buffer_length += strlen(tms); | |
| 407 } | |
| 408 | |
| 409 // Create big enough buffer. | |
| 410 char *buf = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); | |
| 411 | |
| 412 strcpy(buf, ""); | |
| 413 if (force_directory != NULL) { | |
| 414 strcat(buf, force_directory); | |
| 415 strcat(buf, os::file_separator()); | |
| 416 nametail = basename; // completely skip directory prefix | |
| 417 } | |
| 418 | |
| 419 // who is first, %p or %t? | |
| 420 int first = -1, second = -1; | |
| 421 const char *p1st = NULL; | |
| 422 const char *p2nd = NULL; | |
| 423 | |
| 424 if (pid_pos >= 0 && tms_pos >= 0) { | |
| 425 // contains both %p and %t | |
| 426 if (pid_pos < tms_pos) { | |
| 427 // case foo%pbar%tmonkey.log | |
| 428 first = pid_pos; | |
| 429 p1st = pid_text; | |
| 430 second = tms_pos; | |
| 431 p2nd = tms; | |
| 432 } else { | |
| 433 // case foo%tbar%pmonkey.log | |
| 434 first = tms_pos; | |
| 435 p1st = tms; | |
| 436 second = pid_pos; | |
| 437 p2nd = pid_text; | |
| 438 } | |
| 439 } else if (pid_pos >= 0) { | |
| 440 // contains %p only | |
| 441 first = pid_pos; | |
| 442 p1st = pid_text; | |
| 443 } else if (tms_pos >= 0) { | |
| 444 // contains %t only | |
| 445 first = tms_pos; | |
| 446 p1st = tms; | |
| 447 } | |
| 448 | |
| 449 int buf_pos = (int)strlen(buf); | |
| 450 const char* tail = nametail; | |
| 451 | |
| 452 if (first >= 0) { | |
| 453 tail = nametail + first + 2; | |
| 454 strncpy(&buf[buf_pos], nametail, first); | |
| 455 strcpy(&buf[buf_pos + first], p1st); | |
| 456 buf_pos = (int)strlen(buf); | |
| 457 if (second >= 0) { | |
| 458 strncpy(&buf[buf_pos], tail, second - first - 2); | |
| 459 strcpy(&buf[buf_pos + second - first - 2], p2nd); | |
| 460 tail = nametail + second + 2; | |
| 461 } | |
| 462 } | |
| 463 strcat(buf, tail); // append rest of name, or all of name | |
| 464 return buf; | |
| 465 } | |
| 466 | |
| 467 // log_name comes from -XX:LogFile=log_name or -Xloggc:log_name | |
| 468 // in log_name, %p => pipd1234 and | |
| 469 // %t => YYYY-MM-DD_HH-MM-SS | |
| 470 static const char* make_log_name(const char* log_name, const char* force_directory) { | |
| 471 char timestr[32]; | |
| 472 get_datetime_string(timestr, sizeof(timestr)); | |
| 473 return make_log_name_internal(log_name, force_directory, os::current_process_id(), | |
| 474 timestr); | |
| 475 } | |
| 476 | |
| 477 #ifndef PRODUCT | |
| 478 void test_loggc_filename() { | |
| 479 int pid; | |
| 480 char tms[32]; | |
| 481 char i_result[FILENAMEBUFLEN]; | |
| 482 const char* o_result; | |
| 483 get_datetime_string(tms, sizeof(tms)); | |
| 484 pid = os::current_process_id(); | |
| 485 | |
| 486 // test.log | |
| 487 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "test.log", tms); | |
| 488 o_result = make_log_name_internal("test.log", NULL, pid, tms); | |
| 489 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test.log\", NULL)"); | |
| 490 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 491 | |
| 492 // test-%t-%p.log | |
| 493 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "test-%s-pid%u.log", tms, pid); | |
| 494 o_result = make_log_name_internal("test-%t-%p.log", NULL, pid, tms); | |
| 495 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t-%%p.log\", NULL)"); | |
| 496 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 497 | |
| 498 // test-%t%p.log | |
| 499 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "test-%spid%u.log", tms, pid); | |
| 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 // %p%t.log | |
| 505 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "pid%u%s.log", pid, tms); | |
| 506 o_result = make_log_name_internal("%p%t.log", NULL, pid, tms); | |
| 507 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p%%t.log\", NULL)"); | |
| 508 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 509 | |
| 510 // %p-test.log | |
| 511 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "pid%u-test.log", pid); | |
| 512 o_result = make_log_name_internal("%p-test.log", NULL, pid, tms); | |
| 513 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p-test.log\", NULL)"); | |
| 514 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 515 | |
| 516 // %t.log | |
| 517 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "%s.log", tms); | |
| 518 o_result = make_log_name_internal("%t.log", NULL, pid, tms); | |
| 519 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%t.log\", NULL)"); | |
| 520 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 521 } | |
| 522 #endif // PRODUCT | |
| 523 | |
| 0 | 524 fileStream::fileStream(const char* file_name) { |
| 525 _file = fopen(file_name, "w"); | |
| 12215 | 526 if (_file != NULL) { |
| 527 _need_close = true; | |
| 528 } else { | |
| 529 warning("Cannot open file %s due to %s\n", file_name, strerror(errno)); | |
| 530 _need_close = false; | |
| 531 } | |
| 0 | 532 } |
| 533 | |
|
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534 fileStream::fileStream(const char* file_name, const char* opentype) { |
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535 _file = fopen(file_name, opentype); |
| 12215 | 536 if (_file != NULL) { |
| 537 _need_close = true; | |
| 538 } else { | |
| 539 warning("Cannot open file %s due to %s\n", file_name, strerror(errno)); | |
| 540 _need_close = false; | |
| 541 } | |
|
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542 } |
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543 |
| 0 | 544 void fileStream::write(const char* s, size_t len) { |
|
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545 if (_file != NULL) { |
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546 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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547 size_t count = fwrite(s, 1, len, _file); |
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548 } |
| 0 | 549 update_position(s, len); |
| 550 } | |
| 551 | |
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552 long fileStream::fileSize() { |
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553 long size = -1; |
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554 if (_file != NULL) { |
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555 long pos = ::ftell(_file); |
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556 if (::fseek(_file, 0, SEEK_END) == 0) { |
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557 size = ::ftell(_file); |
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558 } |
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559 ::fseek(_file, pos, SEEK_SET); |
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560 } |
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561 return size; |
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562 } |
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563 |
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564 char* fileStream::readln(char *data, int count ) { |
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565 char * ret = ::fgets(data, count, _file); |
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566 //Get rid of annoying \n char |
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567 data[::strlen(data)-1] = '\0'; |
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568 return ret; |
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569 } |
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570 |
| 0 | 571 fileStream::~fileStream() { |
| 572 if (_file != NULL) { | |
| 573 if (_need_close) fclose(_file); | |
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574 _file = NULL; |
| 0 | 575 } |
| 576 } | |
| 577 | |
| 578 void fileStream::flush() { | |
| 579 fflush(_file); | |
| 580 } | |
| 581 | |
| 582 fdStream::fdStream(const char* file_name) { | |
| 583 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 584 _need_close = true; | |
| 585 } | |
| 586 | |
| 587 fdStream::~fdStream() { | |
| 588 if (_fd != -1) { | |
| 589 if (_need_close) close(_fd); | |
| 590 _fd = -1; | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 void fdStream::write(const char* s, size_t len) { | |
|
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595 if (_fd != -1) { |
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596 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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597 size_t count = ::write(_fd, s, (int)len); |
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598 } |
| 0 | 599 update_position(s, len); |
| 600 } | |
| 601 | |
| 12215 | 602 // dump vm version, os version, platform info, build id, |
| 603 // memory usage and command line flags into header | |
| 604 void gcLogFileStream::dump_loggc_header() { | |
| 605 if (is_open()) { | |
| 606 print_cr(Abstract_VM_Version::internal_vm_info_string()); | |
| 607 os::print_memory_info(this); | |
| 608 print("CommandLine flags: "); | |
| 609 CommandLineFlags::printSetFlags(this); | |
| 610 } | |
| 611 } | |
| 612 | |
| 613 gcLogFileStream::~gcLogFileStream() { | |
|
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614 if (_file != NULL) { |
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615 if (_need_close) fclose(_file); |
| 12215 | 616 _file = NULL; |
| 617 } | |
| 618 if (_file_name != NULL) { | |
| 6197 | 619 FREE_C_HEAP_ARRAY(char, _file_name, mtInternal); |
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620 _file_name = NULL; |
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621 } |
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622 } |
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623 |
| 12215 | 624 gcLogFileStream::gcLogFileStream(const char* file_name) { |
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625 _cur_file_num = 0; |
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626 _bytes_written = 0L; |
| 12215 | 627 _file_name = make_log_name(file_name, NULL); |
| 628 | |
| 629 // gc log file rotation | |
| 630 if (UseGCLogFileRotation && NumberOfGCLogFiles > 1) { | |
| 631 char tempbuf[FILENAMEBUFLEN]; | |
| 632 jio_snprintf(tempbuf, sizeof(tempbuf), "%s.%d" CURRENTAPPX, _file_name, _cur_file_num); | |
| 633 _file = fopen(tempbuf, "w"); | |
| 634 } else { | |
| 635 _file = fopen(_file_name, "w"); | |
| 636 } | |
| 637 if (_file != NULL) { | |
| 638 _need_close = true; | |
| 639 dump_loggc_header(); | |
| 640 } else { | |
| 641 warning("Cannot open file %s due to %s\n", _file_name, strerror(errno)); | |
| 642 _need_close = false; | |
| 643 } | |
|
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644 } |
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645 |
| 12215 | 646 void gcLogFileStream::write(const char* s, size_t len) { |
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647 if (_file != NULL) { |
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648 size_t count = fwrite(s, 1, len, _file); |
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649 _bytes_written += count; |
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650 } |
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651 update_position(s, len); |
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652 } |
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653 |
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654 // rotate_log must be called from VMThread at safepoint. In case need change parameters |
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655 // for gc log rotation from thread other than VMThread, a sub type of VM_Operation |
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656 // should be created and be submitted to VMThread's operation queue. DO NOT call this |
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657 // function directly. Currently, it is safe to rotate log at safepoint through VMThread. |
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658 // That is, no mutator threads and concurrent GC threads run parallel with VMThread to |
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659 // write to gc log file at safepoint. If in future, changes made for mutator threads or |
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660 // concurrent GC threads to run parallel with VMThread at safepoint, write and rotate_log |
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661 // must be synchronized. |
| 12215 | 662 void gcLogFileStream::rotate_log() { |
| 663 char time_msg[FILENAMEBUFLEN]; | |
| 664 char time_str[EXTRACHARLEN]; | |
| 665 char current_file_name[FILENAMEBUFLEN]; | |
| 666 char renamed_file_name[FILENAMEBUFLEN]; | |
| 667 | |
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668 if (_bytes_written < (jlong)GCLogFileSize) { |
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669 return; |
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670 } |
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671 |
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672 #ifdef ASSERT |
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673 Thread *thread = Thread::current(); |
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674 assert(thread == NULL || |
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675 (thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()), |
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676 "Must be VMThread at safepoint"); |
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677 #endif |
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678 if (NumberOfGCLogFiles == 1) { |
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679 // rotate in same file |
|
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680 rewind(); |
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681 _bytes_written = 0L; |
| 12215 | 682 jio_snprintf(time_msg, sizeof(time_msg), "File %s rotated at %s\n", |
| 683 _file_name, os::local_time_string((char *)time_str, sizeof(time_str))); | |
| 684 write(time_msg, strlen(time_msg)); | |
| 685 dump_loggc_header(); | |
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686 return; |
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687 } |
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688 |
| 12215 | 689 #if defined(_WINDOWS) |
| 690 #ifndef F_OK | |
| 691 #define F_OK 0 | |
| 692 #endif | |
| 693 #endif // _WINDOWS | |
| 694 | |
| 695 // rotate file in names extended_filename.0, extended_filename.1, ..., | |
| 696 // extended_filename.<NumberOfGCLogFiles - 1>. Current rotation file name will | |
| 697 // have a form of extended_filename.<i>.current where i is the current rotation | |
| 698 // file number. After it reaches max file size, the file will be saved and renamed | |
| 699 // with .current removed from its tail. | |
| 700 size_t filename_len = strlen(_file_name); | |
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701 if (_file != NULL) { |
| 12215 | 702 jio_snprintf(renamed_file_name, filename_len + EXTRACHARLEN, "%s.%d", |
| 703 _file_name, _cur_file_num); | |
| 704 jio_snprintf(current_file_name, filename_len + EXTRACHARLEN, "%s.%d" CURRENTAPPX, | |
| 705 _file_name, _cur_file_num); | |
| 706 jio_snprintf(time_msg, sizeof(time_msg), "%s GC log file has reached the" | |
| 707 " maximum size. Saved as %s\n", | |
| 708 os::local_time_string((char *)time_str, sizeof(time_str)), | |
| 709 renamed_file_name); | |
| 710 write(time_msg, strlen(time_msg)); | |
| 711 | |
|
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712 fclose(_file); |
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713 _file = NULL; |
| 12215 | 714 |
| 715 bool can_rename = true; | |
| 716 if (access(current_file_name, F_OK) != 0) { | |
| 717 // current file does not exist? | |
| 718 warning("No source file exists, cannot rename\n"); | |
| 719 can_rename = false; | |
| 720 } | |
| 721 if (can_rename) { | |
| 722 if (access(renamed_file_name, F_OK) == 0) { | |
| 723 if (remove(renamed_file_name) != 0) { | |
| 724 warning("Could not delete existing file %s\n", renamed_file_name); | |
| 725 can_rename = false; | |
| 726 } | |
| 727 } else { | |
| 728 // file does not exist, ok to rename | |
| 729 } | |
| 730 } | |
| 731 if (can_rename && rename(current_file_name, renamed_file_name) != 0) { | |
| 732 warning("Could not rename %s to %s\n", _file_name, renamed_file_name); | |
| 733 } | |
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734 } |
| 12215 | 735 |
| 736 _cur_file_num++; | |
| 737 if (_cur_file_num > NumberOfGCLogFiles - 1) _cur_file_num = 0; | |
| 738 jio_snprintf(current_file_name, filename_len + EXTRACHARLEN, "%s.%d" CURRENTAPPX, | |
| 739 _file_name, _cur_file_num); | |
| 740 _file = fopen(current_file_name, "w"); | |
| 741 | |
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742 if (_file != NULL) { |
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743 _bytes_written = 0L; |
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744 _need_close = true; |
| 12215 | 745 // reuse current_file_name for time_msg |
| 746 jio_snprintf(current_file_name, filename_len + EXTRACHARLEN, | |
| 747 "%s.%d", _file_name, _cur_file_num); | |
| 748 jio_snprintf(time_msg, sizeof(time_msg), "%s GC log file created %s\n", | |
| 749 os::local_time_string((char *)time_str, sizeof(time_str)), | |
| 750 current_file_name); | |
| 751 write(time_msg, strlen(time_msg)); | |
| 752 dump_loggc_header(); | |
| 753 // remove the existing file | |
| 754 if (access(current_file_name, F_OK) == 0) { | |
| 755 if (remove(current_file_name) != 0) { | |
| 756 warning("Could not delete existing file %s\n", current_file_name); | |
| 757 } | |
| 758 } | |
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759 } else { |
| 12215 | 760 warning("failed to open rotation log file %s due to %s\n" |
| 761 "Turned off GC log file rotation\n", | |
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762 _file_name, strerror(errno)); |
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763 _need_close = false; |
| 12215 | 764 FLAG_SET_DEFAULT(UseGCLogFileRotation, false); |
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765 } |
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766 } |
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767 |
| 0 | 768 defaultStream* defaultStream::instance = NULL; |
| 769 int defaultStream::_output_fd = 1; | |
| 770 int defaultStream::_error_fd = 2; | |
| 771 FILE* defaultStream::_output_stream = stdout; | |
| 772 FILE* defaultStream::_error_stream = stderr; | |
| 773 | |
| 774 #define LOG_MAJOR_VERSION 160 | |
| 775 #define LOG_MINOR_VERSION 1 | |
| 776 | |
| 777 void defaultStream::init() { | |
| 778 _inited = true; | |
| 779 if (LogVMOutput || LogCompilation) { | |
| 780 init_log(); | |
| 781 } | |
| 782 } | |
| 783 | |
| 784 bool defaultStream::has_log_file() { | |
| 785 // lazily create log file (at startup, LogVMOutput is false even | |
| 786 // if +LogVMOutput is used, because the flags haven't been parsed yet) | |
| 787 // For safer printing during fatal error handling, do not init logfile | |
| 788 // if a VM error has been reported. | |
| 789 if (!_inited && !is_error_reported()) init(); | |
| 790 return _log_file != NULL; | |
| 791 } | |
| 792 | |
| 793 void defaultStream::init_log() { | |
| 794 // %%% Need a MutexLocker? | |
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795 const char* log_name = LogFile != NULL ? LogFile : "hotspot_pid%p.log"; |
|
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796 const char* try_name = make_log_name(log_name, NULL); |
| 6197 | 797 fileStream* file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); |
| 0 | 798 if (!file->is_open()) { |
| 799 // Try again to open the file. | |
| 800 char warnbuf[O_BUFLEN*2]; | |
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801 jio_snprintf(warnbuf, sizeof(warnbuf), |
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802 "Warning: Cannot open log file: %s\n", try_name); |
| 0 | 803 // Note: This feature is for maintainer use only. No need for L10N. |
| 804 jio_print(warnbuf); | |
| 6197 | 805 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); |
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806 try_name = make_log_name(log_name, os::get_temp_directory()); |
|
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807 jio_snprintf(warnbuf, sizeof(warnbuf), |
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808 "Warning: Forcing option -XX:LogFile=%s\n", try_name); |
| 0 | 809 jio_print(warnbuf); |
| 810 delete file; | |
| 6197 | 811 file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); |
| 0 | 812 } |
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813 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); |
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814 |
| 0 | 815 if (file->is_open()) { |
| 816 _log_file = file; | |
| 6197 | 817 xmlStream* xs = new(ResourceObj::C_HEAP, mtInternal) xmlStream(file); |
| 0 | 818 _outer_xmlStream = xs; |
| 819 if (this == tty) xtty = xs; | |
| 820 // Write XML header. | |
| 821 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>"); | |
| 822 // (For now, don't bother to issue a DTD for this private format.) | |
| 823 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); | |
| 824 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if | |
| 825 // we ever get round to introduce that method on the os class | |
| 826 xs->head("hotspot_log version='%d %d'" | |
| 827 " process='%d' time_ms='"INT64_FORMAT"'", | |
| 828 LOG_MAJOR_VERSION, LOG_MINOR_VERSION, | |
| 829 os::current_process_id(), time_ms); | |
| 830 // Write VM version header immediately. | |
| 831 xs->head("vm_version"); | |
| 832 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); | |
| 833 xs->tail("name"); | |
| 834 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); | |
| 835 xs->tail("release"); | |
| 836 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); | |
| 837 xs->tail("info"); | |
| 838 xs->tail("vm_version"); | |
| 839 // Record information about the command-line invocation. | |
| 840 xs->head("vm_arguments"); // Cf. Arguments::print_on() | |
| 841 if (Arguments::num_jvm_flags() > 0) { | |
| 842 xs->head("flags"); | |
| 843 Arguments::print_jvm_flags_on(xs->text()); | |
| 844 xs->tail("flags"); | |
| 845 } | |
| 846 if (Arguments::num_jvm_args() > 0) { | |
| 847 xs->head("args"); | |
| 848 Arguments::print_jvm_args_on(xs->text()); | |
| 849 xs->tail("args"); | |
| 850 } | |
| 851 if (Arguments::java_command() != NULL) { | |
| 852 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); | |
| 853 xs->tail("command"); | |
| 854 } | |
| 855 if (Arguments::sun_java_launcher() != NULL) { | |
| 856 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); | |
| 857 xs->tail("launcher"); | |
| 858 } | |
| 859 if (Arguments::system_properties() != NULL) { | |
| 860 xs->head("properties"); | |
| 861 // Print it as a java-style property list. | |
| 862 // System properties don't generally contain newlines, so don't bother with unparsing. | |
| 863 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
| 864 xs->text()->print_cr("%s=%s", p->key(), p->value()); | |
| 865 } | |
| 866 xs->tail("properties"); | |
| 867 } | |
| 868 xs->tail("vm_arguments"); | |
| 869 // tty output per se is grouped under the <tty>...</tty> element. | |
| 870 xs->head("tty"); | |
| 871 // All further non-markup text gets copied to the tty: | |
| 872 xs->_text = this; // requires friend declaration! | |
| 873 } else { | |
| 874 delete(file); | |
| 875 // and leave xtty as NULL | |
| 876 LogVMOutput = false; | |
| 877 DisplayVMOutput = true; | |
| 878 LogCompilation = false; | |
| 879 } | |
| 880 } | |
| 881 | |
| 882 // finish_log() is called during normal VM shutdown. finish_log_on_error() is | |
| 883 // called by ostream_abort() after a fatal error. | |
| 884 // | |
| 885 void defaultStream::finish_log() { | |
| 886 xmlStream* xs = _outer_xmlStream; | |
| 887 xs->done("tty"); | |
| 888 | |
| 889 // Other log forks are appended here, at the End of Time: | |
| 890 CompileLog::finish_log(xs->out()); // write compile logging, if any, now | |
| 891 | |
| 892 xs->done("hotspot_log"); | |
| 893 xs->flush(); | |
| 894 | |
| 895 fileStream* file = _log_file; | |
| 896 _log_file = NULL; | |
| 897 | |
| 898 delete _outer_xmlStream; | |
| 899 _outer_xmlStream = NULL; | |
| 900 | |
| 901 file->flush(); | |
| 902 delete file; | |
| 903 } | |
| 904 | |
| 905 void defaultStream::finish_log_on_error(char *buf, int buflen) { | |
| 906 xmlStream* xs = _outer_xmlStream; | |
| 907 | |
| 908 if (xs && xs->out()) { | |
| 909 | |
| 910 xs->done_raw("tty"); | |
| 911 | |
| 912 // Other log forks are appended here, at the End of Time: | |
| 913 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now | |
| 914 | |
| 915 xs->done_raw("hotspot_log"); | |
| 916 xs->flush(); | |
| 917 | |
| 918 fileStream* file = _log_file; | |
| 919 _log_file = NULL; | |
| 920 _outer_xmlStream = NULL; | |
| 921 | |
| 922 if (file) { | |
| 923 file->flush(); | |
| 924 | |
| 925 // Can't delete or close the file because delete and fclose aren't | |
| 926 // async-safe. We are about to die, so leave it to the kernel. | |
| 927 // delete file; | |
| 928 } | |
| 929 } | |
| 930 } | |
| 931 | |
| 932 intx defaultStream::hold(intx writer_id) { | |
| 933 bool has_log = has_log_file(); // check before locking | |
| 934 if (// impossible, but who knows? | |
| 935 writer_id == NO_WRITER || | |
| 936 | |
| 937 // bootstrap problem | |
| 938 tty_lock == NULL || | |
| 939 | |
| 940 // can't grab a lock or call Thread::current() if TLS isn't initialized | |
| 941 ThreadLocalStorage::thread() == NULL || | |
| 942 | |
| 943 // developer hook | |
| 944 !SerializeVMOutput || | |
| 945 | |
| 946 // VM already unhealthy | |
| 947 is_error_reported() || | |
| 948 | |
| 949 // safepoint == global lock (for VM only) | |
| 950 (SafepointSynchronize::is_synchronizing() && | |
| 951 Thread::current()->is_VM_thread()) | |
| 952 ) { | |
| 953 // do not attempt to lock unless we know the thread and the VM is healthy | |
| 954 return NO_WRITER; | |
| 955 } | |
| 956 if (_writer == writer_id) { | |
| 957 // already held, no need to re-grab the lock | |
| 958 return NO_WRITER; | |
| 959 } | |
| 960 tty_lock->lock_without_safepoint_check(); | |
| 961 // got the lock | |
| 962 if (writer_id != _last_writer) { | |
| 963 if (has_log) { | |
| 964 _log_file->bol(); | |
| 965 // output a hint where this output is coming from: | |
| 6843 | 966 _log_file->print_cr("<writer thread='" UINTX_FORMAT "'/>", writer_id); |
| 0 | 967 } |
| 968 _last_writer = writer_id; | |
| 969 } | |
| 970 _writer = writer_id; | |
| 971 return writer_id; | |
| 972 } | |
| 973 | |
| 974 void defaultStream::release(intx holder) { | |
| 975 if (holder == NO_WRITER) { | |
| 976 // nothing to release: either a recursive lock, or we scribbled (too bad) | |
| 977 return; | |
| 978 } | |
| 979 if (_writer != holder) { | |
| 980 return; // already unlocked, perhaps via break_tty_lock_for_safepoint | |
| 981 } | |
| 982 _writer = NO_WRITER; | |
| 983 tty_lock->unlock(); | |
| 984 } | |
| 985 | |
| 986 | |
| 987 // Yuck: jio_print does not accept char*/len. | |
| 988 static void call_jio_print(const char* s, size_t len) { | |
| 989 char buffer[O_BUFLEN+100]; | |
| 990 if (len > sizeof(buffer)-1) { | |
| 991 warning("increase O_BUFLEN in ostream.cpp -- output truncated"); | |
| 992 len = sizeof(buffer)-1; | |
| 993 } | |
| 994 strncpy(buffer, s, len); | |
| 995 buffer[len] = '\0'; | |
| 996 jio_print(buffer); | |
| 997 } | |
| 998 | |
| 999 | |
| 1000 void defaultStream::write(const char* s, size_t len) { | |
| 1001 intx thread_id = os::current_thread_id(); | |
| 1002 intx holder = hold(thread_id); | |
| 1003 | |
| 1004 if (DisplayVMOutput && | |
| 1005 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { | |
| 1006 // print to output stream. It can be redirected by a vfprintf hook | |
| 1007 if (s[len] == '\0') { | |
| 1008 jio_print(s); | |
| 1009 } else { | |
| 1010 call_jio_print(s, len); | |
| 1011 } | |
| 1012 } | |
| 1013 | |
| 1014 // print to log file | |
| 1015 if (has_log_file()) { | |
| 1016 int nl0 = _newlines; | |
| 1017 xmlTextStream::write(s, len); | |
| 1018 // flush the log file too, if there were any newlines | |
| 1019 if (nl0 != _newlines){ | |
| 1020 flush(); | |
| 1021 } | |
| 1022 } else { | |
| 1023 update_position(s, len); | |
| 1024 } | |
| 1025 | |
| 1026 release(holder); | |
| 1027 } | |
| 1028 | |
| 1029 intx ttyLocker::hold_tty() { | |
| 1030 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; | |
| 1031 intx thread_id = os::current_thread_id(); | |
| 1032 return defaultStream::instance->hold(thread_id); | |
| 1033 } | |
| 1034 | |
| 1035 void ttyLocker::release_tty(intx holder) { | |
| 1036 if (holder == defaultStream::NO_WRITER) return; | |
| 1037 defaultStream::instance->release(holder); | |
| 1038 } | |
| 1039 | |
|
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1040 bool ttyLocker::release_tty_if_locked() { |
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1041 intx thread_id = os::current_thread_id(); |
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1042 if (defaultStream::instance->writer() == thread_id) { |
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1043 // release the lock and return true so callers know if was |
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1044 // previously held. |
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1045 release_tty(thread_id); |
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1046 return true; |
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1047 } |
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1048 return false; |
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1049 } |
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1050 |
| 0 | 1051 void ttyLocker::break_tty_lock_for_safepoint(intx holder) { |
| 1052 if (defaultStream::instance != NULL && | |
| 1053 defaultStream::instance->writer() == holder) { | |
| 1054 if (xtty != NULL) { | |
| 1055 xtty->print_cr("<!-- safepoint while printing -->"); | |
| 1056 } | |
| 1057 defaultStream::instance->release(holder); | |
| 1058 } | |
| 1059 // (else there was no lock to break) | |
| 1060 } | |
| 1061 | |
| 1062 void ostream_init() { | |
| 1063 if (defaultStream::instance == NULL) { | |
| 6197 | 1064 defaultStream::instance = new(ResourceObj::C_HEAP, mtInternal) defaultStream(); |
| 0 | 1065 tty = defaultStream::instance; |
| 1066 | |
| 1067 // We want to ensure that time stamps in GC logs consider time 0 | |
| 1068 // the time when the JVM is initialized, not the first time we ask | |
| 1069 // for a time stamp. So, here, we explicitly update the time stamp | |
| 1070 // of tty. | |
| 1071 tty->time_stamp().update_to(1); | |
| 1072 } | |
| 1073 } | |
| 1074 | |
| 1075 void ostream_init_log() { | |
| 1076 // For -Xloggc:<file> option - called in runtime/thread.cpp | |
| 1077 // Note : this must be called AFTER ostream_init() | |
| 1078 | |
| 1079 gclog_or_tty = tty; // default to tty | |
| 1080 if (Arguments::gc_log_filename() != NULL) { | |
| 12215 | 1081 fileStream * gclog = new(ResourceObj::C_HEAP, mtInternal) |
| 1082 gcLogFileStream(Arguments::gc_log_filename()); | |
| 0 | 1083 if (gclog->is_open()) { |
| 1084 // now we update the time stamp of the GC log to be synced up | |
| 1085 // with tty. | |
| 1086 gclog->time_stamp().update_to(tty->time_stamp().ticks()); | |
| 1087 } | |
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1088 gclog_or_tty = gclog; |
| 0 | 1089 } |
| 1090 | |
| 1091 // If we haven't lazily initialized the logfile yet, do it now, | |
| 1092 // to avoid the possibility of lazy initialization during a VM | |
| 1093 // crash, which can affect the stability of the fatal error handler. | |
| 1094 defaultStream::instance->has_log_file(); | |
| 1095 } | |
| 1096 | |
| 1097 // ostream_exit() is called during normal VM exit to finish log files, flush | |
| 1098 // output and free resource. | |
| 1099 void ostream_exit() { | |
| 1100 static bool ostream_exit_called = false; | |
| 1101 if (ostream_exit_called) return; | |
| 1102 ostream_exit_called = true; | |
| 1103 if (gclog_or_tty != tty) { | |
| 1104 delete gclog_or_tty; | |
| 1105 } | |
| 1106 { | |
| 1107 // we temporaly disable PrintMallocFree here | |
| 1108 // as otherwise it'll lead to using of almost deleted | |
| 1109 // tty or defaultStream::instance in logging facility | |
| 1110 // of HeapFree(), see 6391258 | |
| 1111 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) | |
| 1112 if (tty != defaultStream::instance) { | |
| 1113 delete tty; | |
| 1114 } | |
| 1115 if (defaultStream::instance != NULL) { | |
| 1116 delete defaultStream::instance; | |
| 1117 } | |
| 1118 } | |
| 1119 tty = NULL; | |
| 1120 xtty = NULL; | |
| 1121 gclog_or_tty = NULL; | |
| 1122 defaultStream::instance = NULL; | |
| 1123 } | |
| 1124 | |
| 1125 // ostream_abort() is called by os::abort() when VM is about to die. | |
| 1126 void ostream_abort() { | |
| 1127 // Here we can't delete gclog_or_tty and tty, just flush their output | |
| 1128 if (gclog_or_tty) gclog_or_tty->flush(); | |
| 1129 if (tty) tty->flush(); | |
| 1130 | |
| 1131 if (defaultStream::instance != NULL) { | |
| 1132 static char buf[4096]; | |
| 1133 defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); | |
| 1134 } | |
| 1135 } | |
| 1136 | |
| 1137 staticBufferStream::staticBufferStream(char* buffer, size_t buflen, | |
| 1138 outputStream *outer_stream) { | |
| 1139 _buffer = buffer; | |
| 1140 _buflen = buflen; | |
| 1141 _outer_stream = outer_stream; | |
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1142 // compile task prints time stamp relative to VM start |
|
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1143 _stamp.update_to(1); |
| 0 | 1144 } |
| 1145 | |
| 1146 void staticBufferStream::write(const char* c, size_t len) { | |
| 1147 _outer_stream->print_raw(c, (int)len); | |
| 1148 } | |
| 1149 | |
| 1150 void staticBufferStream::flush() { | |
| 1151 _outer_stream->flush(); | |
| 1152 } | |
| 1153 | |
| 1154 void staticBufferStream::print(const char* format, ...) { | |
| 1155 va_list ap; | |
| 1156 va_start(ap, format); | |
| 1157 size_t len; | |
| 1158 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); | |
| 1159 write(str, len); | |
| 1160 va_end(ap); | |
| 1161 } | |
| 1162 | |
| 1163 void staticBufferStream::print_cr(const char* format, ...) { | |
| 1164 va_list ap; | |
| 1165 va_start(ap, format); | |
| 1166 size_t len; | |
| 1167 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); | |
| 1168 write(str, len); | |
| 1169 va_end(ap); | |
| 1170 } | |
| 1171 | |
| 1172 void staticBufferStream::vprint(const char *format, va_list argptr) { | |
| 1173 size_t len; | |
| 1174 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); | |
| 1175 write(str, len); | |
| 1176 } | |
| 1177 | |
| 1178 void staticBufferStream::vprint_cr(const char* format, va_list argptr) { | |
| 1179 size_t len; | |
| 1180 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); | |
| 1181 write(str, len); | |
| 1182 } | |
| 1183 | |
| 222 | 1184 bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { |
| 0 | 1185 buffer_length = initial_size; |
| 6197 | 1186 buffer = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); |
| 0 | 1187 buffer_pos = 0; |
| 1188 buffer_fixed = false; | |
| 222 | 1189 buffer_max = bufmax; |
| 0 | 1190 } |
| 1191 | |
| 222 | 1192 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { |
| 0 | 1193 buffer_length = fixed_buffer_size; |
| 1194 buffer = fixed_buffer; | |
| 1195 buffer_pos = 0; | |
| 1196 buffer_fixed = true; | |
| 222 | 1197 buffer_max = bufmax; |
| 0 | 1198 } |
| 1199 | |
| 1200 void bufferedStream::write(const char* s, size_t len) { | |
| 222 | 1201 |
| 1202 if(buffer_pos + len > buffer_max) { | |
| 1203 flush(); | |
| 1204 } | |
| 1205 | |
| 0 | 1206 size_t end = buffer_pos + len; |
| 1207 if (end >= buffer_length) { | |
| 1208 if (buffer_fixed) { | |
| 1209 // if buffer cannot resize, silently truncate | |
| 1210 len = buffer_length - buffer_pos - 1; | |
| 1211 } else { | |
| 1212 // For small overruns, double the buffer. For larger ones, | |
| 1213 // increase to the requested size. | |
| 1214 if (end < buffer_length * 2) { | |
| 1215 end = buffer_length * 2; | |
| 1216 } | |
| 6197 | 1217 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end, mtInternal); |
| 0 | 1218 buffer_length = end; |
| 1219 } | |
| 1220 } | |
| 1221 memcpy(buffer + buffer_pos, s, len); | |
| 1222 buffer_pos += len; | |
| 1223 update_position(s, len); | |
| 1224 } | |
| 1225 | |
| 1226 char* bufferedStream::as_string() { | |
| 1227 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
| 1228 strncpy(copy, buffer, buffer_pos); | |
| 1229 copy[buffer_pos] = 0; // terminating null | |
| 1230 return copy; | |
| 1231 } | |
| 1232 | |
| 1233 bufferedStream::~bufferedStream() { | |
| 1234 if (!buffer_fixed) { | |
| 6197 | 1235 FREE_C_HEAP_ARRAY(char, buffer, mtInternal); |
| 0 | 1236 } |
| 1237 } | |
| 1238 | |
| 1239 #ifndef PRODUCT | |
| 1240 | |
| 3960 | 1241 #if defined(SOLARIS) || defined(LINUX) || defined(_ALLBSD_SOURCE) |
| 0 | 1242 #include <sys/types.h> |
| 1243 #include <sys/socket.h> | |
| 1244 #include <netinet/in.h> | |
| 1245 #include <arpa/inet.h> | |
| 1246 #endif | |
| 1247 | |
| 1248 // Network access | |
| 222 | 1249 networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { |
| 0 | 1250 |
| 1251 _socket = -1; | |
| 1252 | |
|
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1253 int result = os::socket(AF_INET, SOCK_STREAM, 0); |
| 0 | 1254 if (result <= 0) { |
| 1255 assert(false, "Socket could not be created!"); | |
| 1256 } else { | |
| 1257 _socket = result; | |
| 1258 } | |
| 1259 } | |
| 1260 | |
| 1261 int networkStream::read(char *buf, size_t len) { | |
|
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1262 return os::recv(_socket, buf, (int)len, 0); |
| 0 | 1263 } |
| 1264 | |
| 1265 void networkStream::flush() { | |
| 1266 if (size() != 0) { | |
|
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1267 int result = os::raw_send(_socket, (char *)base(), size(), 0); |
| 222 | 1268 assert(result != -1, "connection error"); |
| 1269 assert(result == (int)size(), "didn't send enough data"); | |
| 0 | 1270 } |
| 1271 reset(); | |
| 1272 } | |
| 1273 | |
| 1274 networkStream::~networkStream() { | |
| 1275 close(); | |
| 1276 } | |
| 1277 | |
| 1278 void networkStream::close() { | |
| 1279 if (_socket != -1) { | |
| 1280 flush(); | |
|
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1281 os::socket_close(_socket); |
| 0 | 1282 _socket = -1; |
| 1283 } | |
| 1284 } | |
| 1285 | |
| 1286 bool networkStream::connect(const char *ip, short port) { | |
| 1287 | |
| 1288 struct sockaddr_in server; | |
| 1289 server.sin_family = AF_INET; | |
| 1290 server.sin_port = htons(port); | |
| 1291 | |
| 1292 server.sin_addr.s_addr = inet_addr(ip); | |
|
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1293 if (server.sin_addr.s_addr == (uint32_t)-1) { |
|
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1294 struct hostent* host = os::get_host_by_name((char*)ip); |
| 0 | 1295 if (host != NULL) { |
| 1296 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); | |
| 1297 } else { | |
| 1298 return false; | |
| 1299 } | |
| 1300 } | |
| 1301 | |
| 1302 | |
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1303 int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); |
| 0 | 1304 return (result >= 0); |
| 1305 } | |
| 1306 | |
| 1307 #endif |