Mercurial > hg > truffle
annotate src/share/vm/utilities/ostream.cpp @ 20553:417e3b8d04c5
8059100: SIGSEGV VirtualMemoryTracker::remove_released_region
Summary: Disallow increasing native memory tracking level
Reviewed-by: hseigel, ctornqvi, gtriantafill
| author | coleenp |
|---|---|
| date | Fri, 10 Oct 2014 19:36:12 +0000 |
| parents | 6e0cb14ce59b |
| 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" | |
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27 #include "gc_implementation/shared/gcId.hpp" |
| 1972 | 28 #include "oops/oop.inline.hpp" |
| 29 #include "runtime/arguments.hpp" | |
| 30 #include "utilities/defaultStream.hpp" | |
| 31 #include "utilities/ostream.hpp" | |
| 32 #include "utilities/top.hpp" | |
| 33 #include "utilities/xmlstream.hpp" | |
| 34 #ifdef TARGET_OS_FAMILY_linux | |
| 35 # include "os_linux.inline.hpp" | |
| 36 #endif | |
| 37 #ifdef TARGET_OS_FAMILY_solaris | |
| 38 # include "os_solaris.inline.hpp" | |
| 39 #endif | |
| 40 #ifdef TARGET_OS_FAMILY_windows | |
| 41 # include "os_windows.inline.hpp" | |
| 42 #endif | |
| 14411 | 43 #ifdef TARGET_OS_FAMILY_aix |
| 44 # include "os_aix.inline.hpp" | |
| 45 #endif | |
| 3960 | 46 #ifdef TARGET_OS_FAMILY_bsd |
| 47 # include "os_bsd.inline.hpp" | |
| 48 #endif | |
| 0 | 49 |
| 50 extern "C" void jio_print(const char* s); // Declarationtion of jvm method | |
| 51 | |
| 52 outputStream::outputStream(int width) { | |
| 53 _width = width; | |
| 54 _position = 0; | |
| 55 _newlines = 0; | |
| 56 _precount = 0; | |
| 57 _indentation = 0; | |
| 58 } | |
| 59 | |
| 60 outputStream::outputStream(int width, bool has_time_stamps) { | |
| 61 _width = width; | |
| 62 _position = 0; | |
| 63 _newlines = 0; | |
| 64 _precount = 0; | |
| 65 _indentation = 0; | |
| 66 if (has_time_stamps) _stamp.update(); | |
| 67 } | |
| 68 | |
| 69 void outputStream::update_position(const char* s, size_t len) { | |
| 70 for (size_t i = 0; i < len; i++) { | |
| 71 char ch = s[i]; | |
| 72 if (ch == '\n') { | |
| 73 _newlines += 1; | |
| 74 _precount += _position + 1; | |
| 75 _position = 0; | |
| 76 } else if (ch == '\t') { | |
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77 int tw = 8 - (_position & 7); |
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78 _position += tw; |
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79 _precount -= tw-1; // invariant: _precount + _position == total count |
| 0 | 80 } else { |
| 81 _position += 1; | |
| 82 } | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 // Execute a vsprintf, using the given buffer if necessary. | |
| 87 // Return a pointer to the formatted string. | |
| 88 const char* outputStream::do_vsnprintf(char* buffer, size_t buflen, | |
| 89 const char* format, va_list ap, | |
| 90 bool add_cr, | |
| 91 size_t& result_len) { | |
| 92 const char* result; | |
| 93 if (add_cr) buflen--; | |
| 94 if (!strchr(format, '%')) { | |
| 95 // constant format string | |
| 96 result = format; | |
| 97 result_len = strlen(result); | |
| 98 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
| 99 } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') { | |
| 100 // trivial copy-through format string | |
| 101 result = va_arg(ap, const char*); | |
| 102 result_len = strlen(result); | |
| 103 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
| 104 } else if (vsnprintf(buffer, buflen, format, ap) >= 0) { | |
| 105 result = buffer; | |
| 106 result_len = strlen(result); | |
| 107 } else { | |
| 108 DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");) | |
| 109 result = buffer; | |
| 110 result_len = buflen - 1; | |
| 111 buffer[result_len] = 0; | |
| 112 } | |
| 113 if (add_cr) { | |
| 114 if (result != buffer) { | |
| 115 strncpy(buffer, result, buflen); | |
| 116 result = buffer; | |
| 117 } | |
| 118 buffer[result_len++] = '\n'; | |
| 119 buffer[result_len] = 0; | |
| 120 } | |
| 121 return result; | |
| 122 } | |
| 123 | |
| 124 void outputStream::print(const char* format, ...) { | |
| 125 char buffer[O_BUFLEN]; | |
| 126 va_list ap; | |
| 127 va_start(ap, format); | |
| 128 size_t len; | |
| 129 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len); | |
| 130 write(str, len); | |
| 131 va_end(ap); | |
| 132 } | |
| 133 | |
| 134 void outputStream::print_cr(const char* format, ...) { | |
| 135 char buffer[O_BUFLEN]; | |
| 136 va_list ap; | |
| 137 va_start(ap, format); | |
| 138 size_t len; | |
| 139 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len); | |
| 140 write(str, len); | |
| 141 va_end(ap); | |
| 142 } | |
| 143 | |
| 144 void outputStream::vprint(const char *format, va_list argptr) { | |
| 145 char buffer[O_BUFLEN]; | |
| 146 size_t len; | |
| 147 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len); | |
| 148 write(str, len); | |
| 149 } | |
| 150 | |
| 151 void outputStream::vprint_cr(const char* format, va_list argptr) { | |
| 152 char buffer[O_BUFLEN]; | |
| 153 size_t len; | |
| 154 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); | |
| 155 write(str, len); | |
| 156 } | |
| 157 | |
| 158 void outputStream::fill_to(int col) { | |
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159 int need_fill = col - position(); |
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160 sp(need_fill); |
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161 } |
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162 |
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163 void outputStream::move_to(int col, int slop, int min_space) { |
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164 if (position() >= col + slop) |
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165 cr(); |
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166 int need_fill = col - position(); |
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167 if (need_fill < min_space) |
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168 need_fill = min_space; |
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169 sp(need_fill); |
| 0 | 170 } |
| 171 | |
| 172 void outputStream::put(char ch) { | |
| 173 assert(ch != 0, "please fix call site"); | |
| 174 char buf[] = { ch, '\0' }; | |
| 175 write(buf, 1); | |
| 176 } | |
| 177 | |
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178 #define SP_USE_TABS false |
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179 |
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180 void outputStream::sp(int count) { |
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181 if (count < 0) return; |
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182 if (SP_USE_TABS && count >= 8) { |
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183 int target = position() + count; |
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184 while (count >= 8) { |
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185 this->write("\t", 1); |
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186 count -= 8; |
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187 } |
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188 count = target - position(); |
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189 } |
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190 while (count > 0) { |
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191 int nw = (count > 8) ? 8 : count; |
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192 this->write(" ", nw); |
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193 count -= nw; |
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194 } |
| 0 | 195 } |
| 196 | |
| 197 void outputStream::cr() { | |
| 198 this->write("\n", 1); | |
| 199 } | |
| 200 | |
| 201 void outputStream::stamp() { | |
| 202 if (! _stamp.is_updated()) { | |
| 203 _stamp.update(); // start at 0 on first call to stamp() | |
| 204 } | |
| 205 | |
| 206 // outputStream::stamp() may get called by ostream_abort(), use snprintf | |
| 207 // to avoid allocating large stack buffer in print(). | |
| 208 char buf[40]; | |
| 209 jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds()); | |
| 210 print_raw(buf); | |
| 211 } | |
| 212 | |
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213 void outputStream::stamp(bool guard, |
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214 const char* prefix, |
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215 const char* suffix) { |
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216 if (!guard) { |
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217 return; |
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218 } |
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219 print_raw(prefix); |
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220 stamp(); |
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221 print_raw(suffix); |
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222 } |
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223 |
| 0 | 224 void outputStream::date_stamp(bool guard, |
| 225 const char* prefix, | |
| 226 const char* suffix) { | |
| 227 if (!guard) { | |
| 228 return; | |
| 229 } | |
| 230 print_raw(prefix); | |
| 231 static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz"; | |
| 232 static const int buffer_length = 32; | |
| 233 char buffer[buffer_length]; | |
| 234 const char* iso8601_result = os::iso8601_time(buffer, buffer_length); | |
| 235 if (iso8601_result != NULL) { | |
| 236 print_raw(buffer); | |
| 237 } else { | |
| 238 print_raw(error_time); | |
| 239 } | |
| 240 print_raw(suffix); | |
| 241 return; | |
| 242 } | |
| 243 | |
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244 void outputStream::gclog_stamp(const GCId& gc_id) { |
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245 date_stamp(PrintGCDateStamps); |
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246 stamp(PrintGCTimeStamps); |
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247 if (PrintGCID) { |
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248 print("#%u: ", gc_id.id()); |
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249 } |
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250 } |
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251 |
| 6605 | 252 outputStream& outputStream::indent() { |
| 0 | 253 while (_position < _indentation) sp(); |
| 6605 | 254 return *this; |
| 0 | 255 } |
| 256 | |
| 257 void outputStream::print_jlong(jlong value) { | |
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258 print(JLONG_FORMAT, value); |
| 0 | 259 } |
| 260 | |
| 261 void outputStream::print_julong(julong value) { | |
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262 print(JULONG_FORMAT, value); |
| 0 | 263 } |
| 264 | |
| 6605 | 265 /** |
| 266 * This prints out hex data in a 'windbg' or 'xxd' form, where each line is: | |
| 267 * <hex-address>: 8 * <hex-halfword> <ascii translation (optional)> | |
| 268 * example: | |
| 269 * 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000 .DOF............ | |
| 270 * 0000010: 0000 0000 0000 0040 0000 0020 0000 0005 .......@... .... | |
| 271 * 0000020: 0000 0000 0000 0040 0000 0000 0000 015d .......@.......] | |
| 272 * ... | |
| 273 * | |
| 274 * indent is applied to each line. Ends with a CR. | |
| 275 */ | |
| 276 void outputStream::print_data(void* data, size_t len, bool with_ascii) { | |
| 277 size_t limit = (len + 16) / 16 * 16; | |
| 278 for (size_t i = 0; i < limit; ++i) { | |
| 279 if (i % 16 == 0) { | |
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280 indent().print(SIZE_FORMAT_HEX_W(07)":", i); |
| 6605 | 281 } |
| 282 if (i % 2 == 0) { | |
| 283 print(" "); | |
| 284 } | |
| 285 if (i < len) { | |
| 286 print("%02x", ((unsigned char*)data)[i]); | |
| 287 } else { | |
| 288 print(" "); | |
| 289 } | |
| 290 if ((i + 1) % 16 == 0) { | |
| 291 if (with_ascii) { | |
| 292 print(" "); | |
| 293 for (size_t j = 0; j < 16; ++j) { | |
| 294 size_t idx = i + j - 15; | |
| 295 if (idx < len) { | |
| 296 char c = ((char*)data)[idx]; | |
| 297 print("%c", c >= 32 && c <= 126 ? c : '.'); | |
| 298 } | |
| 299 } | |
| 300 } | |
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301 cr(); |
| 6605 | 302 } |
| 303 } | |
| 304 } | |
| 305 | |
| 0 | 306 stringStream::stringStream(size_t initial_size) : outputStream() { |
| 307 buffer_length = initial_size; | |
| 308 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); | |
| 309 buffer_pos = 0; | |
| 310 buffer_fixed = false; | |
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311 DEBUG_ONLY(rm = Thread::current()->current_resource_mark();) |
| 0 | 312 } |
| 313 | |
| 314 // useful for output to fixed chunks of memory, such as performance counters | |
| 315 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { | |
| 316 buffer_length = fixed_buffer_size; | |
| 317 buffer = fixed_buffer; | |
| 318 buffer_pos = 0; | |
| 319 buffer_fixed = true; | |
| 320 } | |
| 321 | |
| 322 void stringStream::write(const char* s, size_t len) { | |
| 323 size_t write_len = len; // number of non-null bytes to write | |
| 324 size_t end = buffer_pos + len + 1; // position after write and final '\0' | |
| 325 if (end > buffer_length) { | |
| 326 if (buffer_fixed) { | |
| 327 // if buffer cannot resize, silently truncate | |
| 328 end = buffer_length; | |
| 329 write_len = end - buffer_pos - 1; // leave room for the final '\0' | |
| 330 } else { | |
| 331 // For small overruns, double the buffer. For larger ones, | |
| 332 // increase to the requested size. | |
| 333 if (end < buffer_length * 2) { | |
| 334 end = buffer_length * 2; | |
| 335 } | |
| 336 char* oldbuf = buffer; | |
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337 assert(rm == NULL || Thread::current()->current_resource_mark() == rm, |
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338 "stringStream is re-allocated with a different ResourceMark"); |
| 0 | 339 buffer = NEW_RESOURCE_ARRAY(char, end); |
| 340 strncpy(buffer, oldbuf, buffer_pos); | |
| 341 buffer_length = end; | |
| 342 } | |
| 343 } | |
| 344 // invariant: buffer is always null-terminated | |
| 345 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); | |
| 346 buffer[buffer_pos + write_len] = 0; | |
| 347 strncpy(buffer + buffer_pos, s, write_len); | |
| 348 buffer_pos += write_len; | |
| 349 | |
| 350 // Note that the following does not depend on write_len. | |
| 351 // This means that position and count get updated | |
| 352 // even when overflow occurs. | |
| 353 update_position(s, len); | |
| 354 } | |
| 355 | |
| 356 char* stringStream::as_string() { | |
| 12215 | 357 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos + 1); |
| 0 | 358 strncpy(copy, buffer, buffer_pos); |
| 359 copy[buffer_pos] = 0; // terminating null | |
| 360 return copy; | |
| 361 } | |
| 362 | |
| 363 stringStream::~stringStream() {} | |
| 364 | |
| 365 xmlStream* xtty; | |
| 366 outputStream* tty; | |
| 367 outputStream* gclog_or_tty; | |
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368 CDS_ONLY(fileStream* classlist_file;) // Only dump the classes that can be stored into the CDS archive |
| 0 | 369 extern Mutex* tty_lock; |
| 370 | |
| 12215 | 371 #define EXTRACHARLEN 32 |
| 372 #define CURRENTAPPX ".current" | |
| 373 #define FILENAMEBUFLEN 1024 | |
| 374 // convert YYYY-MM-DD HH:MM:SS to YYYY-MM-DD_HH-MM-SS | |
| 375 char* get_datetime_string(char *buf, size_t len) { | |
| 376 os::local_time_string(buf, len); | |
| 377 int i = (int)strlen(buf); | |
| 378 while (i-- >= 0) { | |
| 379 if (buf[i] == ' ') buf[i] = '_'; | |
| 380 else if (buf[i] == ':') buf[i] = '-'; | |
| 381 } | |
| 382 return buf; | |
| 383 } | |
| 384 | |
| 385 static const char* make_log_name_internal(const char* log_name, const char* force_directory, | |
| 386 int pid, const char* tms) { | |
| 387 const char* basename = log_name; | |
| 388 char file_sep = os::file_separator()[0]; | |
| 389 const char* cp; | |
| 390 char pid_text[32]; | |
| 391 | |
| 392 for (cp = log_name; *cp != '\0'; cp++) { | |
| 393 if (*cp == '/' || *cp == file_sep) { | |
| 394 basename = cp + 1; | |
| 395 } | |
| 396 } | |
| 397 const char* nametail = log_name; | |
| 398 // Compute buffer length | |
| 399 size_t buffer_length; | |
| 400 if (force_directory != NULL) { | |
| 401 buffer_length = strlen(force_directory) + strlen(os::file_separator()) + | |
| 402 strlen(basename) + 1; | |
| 403 } else { | |
| 404 buffer_length = strlen(log_name) + 1; | |
| 405 } | |
| 406 | |
| 407 // const char* star = strchr(basename, '*'); | |
| 408 const char* pts = strstr(basename, "%p"); | |
| 409 int pid_pos = (pts == NULL) ? -1 : (pts - nametail); | |
| 410 | |
| 411 if (pid_pos >= 0) { | |
| 412 jio_snprintf(pid_text, sizeof(pid_text), "pid%u", pid); | |
| 413 buffer_length += strlen(pid_text); | |
| 414 } | |
| 415 | |
| 416 pts = strstr(basename, "%t"); | |
| 417 int tms_pos = (pts == NULL) ? -1 : (pts - nametail); | |
| 418 if (tms_pos >= 0) { | |
| 419 buffer_length += strlen(tms); | |
| 420 } | |
| 421 | |
| 422 // Create big enough buffer. | |
| 423 char *buf = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); | |
| 424 | |
| 425 strcpy(buf, ""); | |
| 426 if (force_directory != NULL) { | |
| 427 strcat(buf, force_directory); | |
| 428 strcat(buf, os::file_separator()); | |
| 429 nametail = basename; // completely skip directory prefix | |
| 430 } | |
| 431 | |
| 432 // who is first, %p or %t? | |
| 433 int first = -1, second = -1; | |
| 434 const char *p1st = NULL; | |
| 435 const char *p2nd = NULL; | |
| 436 | |
| 437 if (pid_pos >= 0 && tms_pos >= 0) { | |
| 438 // contains both %p and %t | |
| 439 if (pid_pos < tms_pos) { | |
| 440 // case foo%pbar%tmonkey.log | |
| 441 first = pid_pos; | |
| 442 p1st = pid_text; | |
| 443 second = tms_pos; | |
| 444 p2nd = tms; | |
| 445 } else { | |
| 446 // case foo%tbar%pmonkey.log | |
| 447 first = tms_pos; | |
| 448 p1st = tms; | |
| 449 second = pid_pos; | |
| 450 p2nd = pid_text; | |
| 451 } | |
| 452 } else if (pid_pos >= 0) { | |
| 453 // contains %p only | |
| 454 first = pid_pos; | |
| 455 p1st = pid_text; | |
| 456 } else if (tms_pos >= 0) { | |
| 457 // contains %t only | |
| 458 first = tms_pos; | |
| 459 p1st = tms; | |
| 460 } | |
| 461 | |
| 462 int buf_pos = (int)strlen(buf); | |
| 463 const char* tail = nametail; | |
| 464 | |
| 465 if (first >= 0) { | |
| 466 tail = nametail + first + 2; | |
| 467 strncpy(&buf[buf_pos], nametail, first); | |
| 468 strcpy(&buf[buf_pos + first], p1st); | |
| 469 buf_pos = (int)strlen(buf); | |
| 470 if (second >= 0) { | |
| 471 strncpy(&buf[buf_pos], tail, second - first - 2); | |
| 472 strcpy(&buf[buf_pos + second - first - 2], p2nd); | |
| 473 tail = nametail + second + 2; | |
| 474 } | |
| 475 } | |
| 476 strcat(buf, tail); // append rest of name, or all of name | |
| 477 return buf; | |
| 478 } | |
| 479 | |
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480 // log_name comes from -XX:LogFile=log_name, -Xloggc:log_name or |
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481 // -XX:DumpLoadedClassList=<file_name> |
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482 // in log_name, %p => pid1234 and |
| 12215 | 483 // %t => YYYY-MM-DD_HH-MM-SS |
| 484 static const char* make_log_name(const char* log_name, const char* force_directory) { | |
| 485 char timestr[32]; | |
| 486 get_datetime_string(timestr, sizeof(timestr)); | |
| 487 return make_log_name_internal(log_name, force_directory, os::current_process_id(), | |
| 488 timestr); | |
| 489 } | |
| 490 | |
| 491 #ifndef PRODUCT | |
| 492 void test_loggc_filename() { | |
| 493 int pid; | |
| 494 char tms[32]; | |
| 495 char i_result[FILENAMEBUFLEN]; | |
| 496 const char* o_result; | |
| 497 get_datetime_string(tms, sizeof(tms)); | |
| 498 pid = os::current_process_id(); | |
| 499 | |
| 500 // test.log | |
| 501 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "test.log", tms); | |
| 502 o_result = make_log_name_internal("test.log", NULL, pid, tms); | |
| 503 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test.log\", NULL)"); | |
| 504 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 505 | |
| 506 // test-%t-%p.log | |
| 507 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "test-%s-pid%u.log", tms, pid); | |
| 508 o_result = make_log_name_internal("test-%t-%p.log", NULL, pid, tms); | |
| 509 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t-%%p.log\", NULL)"); | |
| 510 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 511 | |
| 512 // test-%t%p.log | |
| 513 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "test-%spid%u.log", tms, pid); | |
| 514 o_result = make_log_name_internal("test-%t%p.log", NULL, pid, tms); | |
| 515 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t%%p.log\", NULL)"); | |
| 516 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 517 | |
| 518 // %p%t.log | |
| 519 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "pid%u%s.log", pid, tms); | |
| 520 o_result = make_log_name_internal("%p%t.log", NULL, pid, tms); | |
| 521 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p%%t.log\", NULL)"); | |
| 522 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 523 | |
| 524 // %p-test.log | |
| 525 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "pid%u-test.log", pid); | |
| 526 o_result = make_log_name_internal("%p-test.log", NULL, pid, tms); | |
| 527 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p-test.log\", NULL)"); | |
| 528 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 529 | |
| 530 // %t.log | |
| 531 jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "%s.log", tms); | |
| 532 o_result = make_log_name_internal("%t.log", NULL, pid, tms); | |
| 533 assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%t.log\", NULL)"); | |
| 534 FREE_C_HEAP_ARRAY(char, o_result, mtInternal); | |
| 535 } | |
| 536 #endif // PRODUCT | |
| 537 | |
| 0 | 538 fileStream::fileStream(const char* file_name) { |
| 539 _file = fopen(file_name, "w"); | |
| 12215 | 540 if (_file != NULL) { |
| 541 _need_close = true; | |
| 542 } else { | |
| 543 warning("Cannot open file %s due to %s\n", file_name, strerror(errno)); | |
| 544 _need_close = false; | |
| 545 } | |
| 0 | 546 } |
| 547 | |
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548 fileStream::fileStream(const char* file_name, const char* opentype) { |
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549 _file = fopen(file_name, opentype); |
| 12215 | 550 if (_file != NULL) { |
| 551 _need_close = true; | |
| 552 } else { | |
| 553 warning("Cannot open file %s due to %s\n", file_name, strerror(errno)); | |
| 554 _need_close = false; | |
| 555 } | |
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556 } |
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557 |
| 0 | 558 void fileStream::write(const char* s, size_t len) { |
|
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559 if (_file != NULL) { |
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560 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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561 size_t count = fwrite(s, 1, len, _file); |
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562 } |
| 0 | 563 update_position(s, len); |
| 564 } | |
| 565 | |
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566 long fileStream::fileSize() { |
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567 long size = -1; |
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568 if (_file != NULL) { |
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569 long pos = ::ftell(_file); |
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570 if (::fseek(_file, 0, SEEK_END) == 0) { |
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571 size = ::ftell(_file); |
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572 } |
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573 ::fseek(_file, pos, SEEK_SET); |
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574 } |
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575 return size; |
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576 } |
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577 |
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578 char* fileStream::readln(char *data, int count ) { |
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579 char * ret = ::fgets(data, count, _file); |
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580 //Get rid of annoying \n char |
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581 data[::strlen(data)-1] = '\0'; |
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582 return ret; |
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583 } |
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584 |
| 0 | 585 fileStream::~fileStream() { |
| 586 if (_file != NULL) { | |
| 587 if (_need_close) fclose(_file); | |
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588 _file = NULL; |
| 0 | 589 } |
| 590 } | |
| 591 | |
| 592 void fileStream::flush() { | |
| 593 fflush(_file); | |
| 594 } | |
| 595 | |
| 596 fdStream::fdStream(const char* file_name) { | |
| 597 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 598 _need_close = true; | |
| 599 } | |
| 600 | |
| 601 fdStream::~fdStream() { | |
| 602 if (_fd != -1) { | |
| 603 if (_need_close) close(_fd); | |
| 604 _fd = -1; | |
| 605 } | |
| 606 } | |
| 607 | |
| 608 void fdStream::write(const char* s, size_t len) { | |
|
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609 if (_fd != -1) { |
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610 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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611 size_t count = ::write(_fd, s, (int)len); |
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612 } |
| 0 | 613 update_position(s, len); |
| 614 } | |
| 615 | |
| 12215 | 616 // dump vm version, os version, platform info, build id, |
| 617 // memory usage and command line flags into header | |
| 618 void gcLogFileStream::dump_loggc_header() { | |
| 619 if (is_open()) { | |
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620 print_cr("%s", Abstract_VM_Version::internal_vm_info_string()); |
| 12215 | 621 os::print_memory_info(this); |
| 622 print("CommandLine flags: "); | |
| 623 CommandLineFlags::printSetFlags(this); | |
| 624 } | |
| 625 } | |
| 626 | |
| 627 gcLogFileStream::~gcLogFileStream() { | |
|
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628 if (_file != NULL) { |
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629 if (_need_close) fclose(_file); |
| 12215 | 630 _file = NULL; |
| 631 } | |
| 632 if (_file_name != NULL) { | |
| 6197 | 633 FREE_C_HEAP_ARRAY(char, _file_name, mtInternal); |
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634 _file_name = NULL; |
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635 } |
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636 } |
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637 |
| 12215 | 638 gcLogFileStream::gcLogFileStream(const char* file_name) { |
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639 _cur_file_num = 0; |
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640 _bytes_written = 0L; |
| 12215 | 641 _file_name = make_log_name(file_name, NULL); |
| 642 | |
| 643 // gc log file rotation | |
| 644 if (UseGCLogFileRotation && NumberOfGCLogFiles > 1) { | |
| 645 char tempbuf[FILENAMEBUFLEN]; | |
| 646 jio_snprintf(tempbuf, sizeof(tempbuf), "%s.%d" CURRENTAPPX, _file_name, _cur_file_num); | |
| 647 _file = fopen(tempbuf, "w"); | |
| 648 } else { | |
| 649 _file = fopen(_file_name, "w"); | |
| 650 } | |
| 651 if (_file != NULL) { | |
| 652 _need_close = true; | |
| 653 dump_loggc_header(); | |
| 654 } else { | |
| 655 warning("Cannot open file %s due to %s\n", _file_name, strerror(errno)); | |
| 656 _need_close = false; | |
| 657 } | |
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658 } |
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659 |
| 12215 | 660 void gcLogFileStream::write(const char* s, size_t len) { |
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661 if (_file != NULL) { |
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662 size_t count = fwrite(s, 1, len, _file); |
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663 _bytes_written += count; |
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664 } |
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665 update_position(s, len); |
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666 } |
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667 |
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668 // rotate_log must be called from VMThread at safepoint. In case need change parameters |
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669 // for gc log rotation from thread other than VMThread, a sub type of VM_Operation |
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670 // should be created and be submitted to VMThread's operation queue. DO NOT call this |
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671 // function directly. Currently, it is safe to rotate log at safepoint through VMThread. |
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672 // That is, no mutator threads and concurrent GC threads run parallel with VMThread to |
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673 // write to gc log file at safepoint. If in future, changes made for mutator threads or |
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674 // concurrent GC threads to run parallel with VMThread at safepoint, write and rotate_log |
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675 // must be synchronized. |
| 17827 | 676 void gcLogFileStream::rotate_log(bool force, outputStream* out) { |
| 12215 | 677 char time_msg[FILENAMEBUFLEN]; |
| 678 char time_str[EXTRACHARLEN]; | |
| 679 char current_file_name[FILENAMEBUFLEN]; | |
| 680 char renamed_file_name[FILENAMEBUFLEN]; | |
| 681 | |
| 17827 | 682 if (!should_rotate(force)) { |
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683 return; |
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684 } |
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685 |
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686 #ifdef ASSERT |
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687 Thread *thread = Thread::current(); |
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688 assert(thread == NULL || |
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689 (thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()), |
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690 "Must be VMThread at safepoint"); |
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691 #endif |
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692 if (NumberOfGCLogFiles == 1) { |
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693 // rotate in same file |
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694 rewind(); |
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695 _bytes_written = 0L; |
| 12215 | 696 jio_snprintf(time_msg, sizeof(time_msg), "File %s rotated at %s\n", |
| 697 _file_name, os::local_time_string((char *)time_str, sizeof(time_str))); | |
| 698 write(time_msg, strlen(time_msg)); | |
| 17827 | 699 |
| 700 if (out != NULL) { | |
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701 out->print("%s", time_msg); |
| 17827 | 702 } |
| 703 | |
| 12215 | 704 dump_loggc_header(); |
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705 return; |
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706 } |
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707 |
| 12215 | 708 #if defined(_WINDOWS) |
| 709 #ifndef F_OK | |
| 710 #define F_OK 0 | |
| 711 #endif | |
| 712 #endif // _WINDOWS | |
| 713 | |
| 714 // rotate file in names extended_filename.0, extended_filename.1, ..., | |
| 715 // extended_filename.<NumberOfGCLogFiles - 1>. Current rotation file name will | |
| 716 // have a form of extended_filename.<i>.current where i is the current rotation | |
| 717 // file number. After it reaches max file size, the file will be saved and renamed | |
| 718 // with .current removed from its tail. | |
| 719 size_t filename_len = strlen(_file_name); | |
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720 if (_file != NULL) { |
| 12215 | 721 jio_snprintf(renamed_file_name, filename_len + EXTRACHARLEN, "%s.%d", |
| 722 _file_name, _cur_file_num); | |
| 723 jio_snprintf(current_file_name, filename_len + EXTRACHARLEN, "%s.%d" CURRENTAPPX, | |
| 724 _file_name, _cur_file_num); | |
| 17827 | 725 |
| 726 const char* msg = force ? "GC log rotation request has been received." | |
| 727 : "GC log file has reached the maximum size."; | |
| 728 jio_snprintf(time_msg, sizeof(time_msg), "%s %s Saved as %s\n", | |
| 729 os::local_time_string((char *)time_str, sizeof(time_str)), | |
| 730 msg, renamed_file_name); | |
| 12215 | 731 write(time_msg, strlen(time_msg)); |
| 732 | |
| 17827 | 733 if (out != NULL) { |
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734 out->print("%s", time_msg); |
| 17827 | 735 } |
| 736 | |
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737 fclose(_file); |
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738 _file = NULL; |
| 12215 | 739 |
| 740 bool can_rename = true; | |
| 741 if (access(current_file_name, F_OK) != 0) { | |
| 742 // current file does not exist? | |
| 743 warning("No source file exists, cannot rename\n"); | |
| 744 can_rename = false; | |
| 745 } | |
| 746 if (can_rename) { | |
| 747 if (access(renamed_file_name, F_OK) == 0) { | |
| 748 if (remove(renamed_file_name) != 0) { | |
| 749 warning("Could not delete existing file %s\n", renamed_file_name); | |
| 750 can_rename = false; | |
| 751 } | |
| 752 } else { | |
| 753 // file does not exist, ok to rename | |
| 754 } | |
| 755 } | |
| 756 if (can_rename && rename(current_file_name, renamed_file_name) != 0) { | |
| 757 warning("Could not rename %s to %s\n", _file_name, renamed_file_name); | |
| 758 } | |
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759 } |
| 12215 | 760 |
| 761 _cur_file_num++; | |
| 762 if (_cur_file_num > NumberOfGCLogFiles - 1) _cur_file_num = 0; | |
| 763 jio_snprintf(current_file_name, filename_len + EXTRACHARLEN, "%s.%d" CURRENTAPPX, | |
| 764 _file_name, _cur_file_num); | |
| 765 _file = fopen(current_file_name, "w"); | |
| 766 | |
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767 if (_file != NULL) { |
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768 _bytes_written = 0L; |
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769 _need_close = true; |
| 12215 | 770 // reuse current_file_name for time_msg |
| 771 jio_snprintf(current_file_name, filename_len + EXTRACHARLEN, | |
| 772 "%s.%d", _file_name, _cur_file_num); | |
| 773 jio_snprintf(time_msg, sizeof(time_msg), "%s GC log file created %s\n", | |
| 774 os::local_time_string((char *)time_str, sizeof(time_str)), | |
| 775 current_file_name); | |
| 776 write(time_msg, strlen(time_msg)); | |
| 17827 | 777 |
| 778 if (out != NULL) { | |
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779 out->print("%s", time_msg); |
| 17827 | 780 } |
| 781 | |
| 12215 | 782 dump_loggc_header(); |
| 783 // remove the existing file | |
| 784 if (access(current_file_name, F_OK) == 0) { | |
| 785 if (remove(current_file_name) != 0) { | |
| 786 warning("Could not delete existing file %s\n", current_file_name); | |
| 787 } | |
| 788 } | |
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789 } else { |
| 12215 | 790 warning("failed to open rotation log file %s due to %s\n" |
| 791 "Turned off GC log file rotation\n", | |
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792 _file_name, strerror(errno)); |
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793 _need_close = false; |
| 12215 | 794 FLAG_SET_DEFAULT(UseGCLogFileRotation, false); |
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795 } |
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796 } |
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797 |
| 0 | 798 defaultStream* defaultStream::instance = NULL; |
| 799 int defaultStream::_output_fd = 1; | |
| 800 int defaultStream::_error_fd = 2; | |
| 801 FILE* defaultStream::_output_stream = stdout; | |
| 802 FILE* defaultStream::_error_stream = stderr; | |
| 803 | |
| 804 #define LOG_MAJOR_VERSION 160 | |
| 805 #define LOG_MINOR_VERSION 1 | |
| 806 | |
| 807 void defaultStream::init() { | |
| 808 _inited = true; | |
| 809 if (LogVMOutput || LogCompilation) { | |
| 810 init_log(); | |
| 811 } | |
| 812 } | |
| 813 | |
| 814 bool defaultStream::has_log_file() { | |
| 815 // lazily create log file (at startup, LogVMOutput is false even | |
| 816 // if +LogVMOutput is used, because the flags haven't been parsed yet) | |
| 817 // For safer printing during fatal error handling, do not init logfile | |
| 818 // if a VM error has been reported. | |
| 819 if (!_inited && !is_error_reported()) init(); | |
| 820 return _log_file != NULL; | |
| 821 } | |
| 822 | |
| 823 void defaultStream::init_log() { | |
| 824 // %%% Need a MutexLocker? | |
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825 const char* log_name = LogFile != NULL ? LogFile : "hotspot_%p.log"; |
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826 const char* try_name = make_log_name(log_name, NULL); |
| 6197 | 827 fileStream* file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); |
| 0 | 828 if (!file->is_open()) { |
| 829 // Try again to open the file. | |
| 830 char warnbuf[O_BUFLEN*2]; | |
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831 jio_snprintf(warnbuf, sizeof(warnbuf), |
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832 "Warning: Cannot open log file: %s\n", try_name); |
| 0 | 833 // Note: This feature is for maintainer use only. No need for L10N. |
| 834 jio_print(warnbuf); | |
| 6197 | 835 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); |
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836 try_name = make_log_name(log_name, os::get_temp_directory()); |
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837 jio_snprintf(warnbuf, sizeof(warnbuf), |
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838 "Warning: Forcing option -XX:LogFile=%s\n", try_name); |
| 0 | 839 jio_print(warnbuf); |
| 840 delete file; | |
| 6197 | 841 file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); |
| 0 | 842 } |
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843 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); |
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844 |
| 0 | 845 if (file->is_open()) { |
| 846 _log_file = file; | |
| 6197 | 847 xmlStream* xs = new(ResourceObj::C_HEAP, mtInternal) xmlStream(file); |
| 0 | 848 _outer_xmlStream = xs; |
| 849 if (this == tty) xtty = xs; | |
| 850 // Write XML header. | |
| 851 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>"); | |
| 852 // (For now, don't bother to issue a DTD for this private format.) | |
| 853 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); | |
| 854 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if | |
| 855 // we ever get round to introduce that method on the os class | |
| 856 xs->head("hotspot_log version='%d %d'" | |
| 857 " process='%d' time_ms='"INT64_FORMAT"'", | |
| 858 LOG_MAJOR_VERSION, LOG_MINOR_VERSION, | |
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859 os::current_process_id(), (int64_t)time_ms); |
| 0 | 860 // Write VM version header immediately. |
| 861 xs->head("vm_version"); | |
| 862 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); | |
| 863 xs->tail("name"); | |
| 864 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); | |
| 865 xs->tail("release"); | |
| 866 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); | |
| 867 xs->tail("info"); | |
| 868 xs->tail("vm_version"); | |
| 869 // Record information about the command-line invocation. | |
| 870 xs->head("vm_arguments"); // Cf. Arguments::print_on() | |
| 871 if (Arguments::num_jvm_flags() > 0) { | |
| 872 xs->head("flags"); | |
| 873 Arguments::print_jvm_flags_on(xs->text()); | |
| 874 xs->tail("flags"); | |
| 875 } | |
| 876 if (Arguments::num_jvm_args() > 0) { | |
| 877 xs->head("args"); | |
| 878 Arguments::print_jvm_args_on(xs->text()); | |
| 879 xs->tail("args"); | |
| 880 } | |
| 881 if (Arguments::java_command() != NULL) { | |
| 882 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); | |
| 883 xs->tail("command"); | |
| 884 } | |
| 885 if (Arguments::sun_java_launcher() != NULL) { | |
| 886 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); | |
| 887 xs->tail("launcher"); | |
| 888 } | |
| 889 if (Arguments::system_properties() != NULL) { | |
| 890 xs->head("properties"); | |
| 891 // Print it as a java-style property list. | |
| 892 // System properties don't generally contain newlines, so don't bother with unparsing. | |
| 893 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
| 894 xs->text()->print_cr("%s=%s", p->key(), p->value()); | |
| 895 } | |
| 896 xs->tail("properties"); | |
| 897 } | |
| 898 xs->tail("vm_arguments"); | |
| 899 // tty output per se is grouped under the <tty>...</tty> element. | |
| 900 xs->head("tty"); | |
| 901 // All further non-markup text gets copied to the tty: | |
| 902 xs->_text = this; // requires friend declaration! | |
| 903 } else { | |
| 904 delete(file); | |
| 905 // and leave xtty as NULL | |
| 906 LogVMOutput = false; | |
| 907 DisplayVMOutput = true; | |
| 908 LogCompilation = false; | |
| 909 } | |
| 910 } | |
| 911 | |
| 912 // finish_log() is called during normal VM shutdown. finish_log_on_error() is | |
| 913 // called by ostream_abort() after a fatal error. | |
| 914 // | |
| 915 void defaultStream::finish_log() { | |
| 916 xmlStream* xs = _outer_xmlStream; | |
| 917 xs->done("tty"); | |
| 918 | |
| 919 // Other log forks are appended here, at the End of Time: | |
| 920 CompileLog::finish_log(xs->out()); // write compile logging, if any, now | |
| 921 | |
| 922 xs->done("hotspot_log"); | |
| 923 xs->flush(); | |
| 924 | |
| 925 fileStream* file = _log_file; | |
| 926 _log_file = NULL; | |
| 927 | |
| 928 delete _outer_xmlStream; | |
| 929 _outer_xmlStream = NULL; | |
| 930 | |
| 931 file->flush(); | |
| 932 delete file; | |
| 933 } | |
| 934 | |
| 935 void defaultStream::finish_log_on_error(char *buf, int buflen) { | |
| 936 xmlStream* xs = _outer_xmlStream; | |
| 937 | |
| 938 if (xs && xs->out()) { | |
| 939 | |
| 940 xs->done_raw("tty"); | |
| 941 | |
| 942 // Other log forks are appended here, at the End of Time: | |
| 943 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now | |
| 944 | |
| 945 xs->done_raw("hotspot_log"); | |
| 946 xs->flush(); | |
| 947 | |
| 948 fileStream* file = _log_file; | |
| 949 _log_file = NULL; | |
| 950 _outer_xmlStream = NULL; | |
| 951 | |
| 952 if (file) { | |
| 953 file->flush(); | |
| 954 | |
| 955 // Can't delete or close the file because delete and fclose aren't | |
| 956 // async-safe. We are about to die, so leave it to the kernel. | |
| 957 // delete file; | |
| 958 } | |
| 959 } | |
| 960 } | |
| 961 | |
| 962 intx defaultStream::hold(intx writer_id) { | |
| 963 bool has_log = has_log_file(); // check before locking | |
| 964 if (// impossible, but who knows? | |
| 965 writer_id == NO_WRITER || | |
| 966 | |
| 967 // bootstrap problem | |
| 968 tty_lock == NULL || | |
| 969 | |
| 970 // can't grab a lock or call Thread::current() if TLS isn't initialized | |
| 971 ThreadLocalStorage::thread() == NULL || | |
| 972 | |
| 973 // developer hook | |
| 974 !SerializeVMOutput || | |
| 975 | |
| 976 // VM already unhealthy | |
| 977 is_error_reported() || | |
| 978 | |
| 979 // safepoint == global lock (for VM only) | |
| 980 (SafepointSynchronize::is_synchronizing() && | |
| 981 Thread::current()->is_VM_thread()) | |
| 982 ) { | |
| 983 // do not attempt to lock unless we know the thread and the VM is healthy | |
| 984 return NO_WRITER; | |
| 985 } | |
| 986 if (_writer == writer_id) { | |
| 987 // already held, no need to re-grab the lock | |
| 988 return NO_WRITER; | |
| 989 } | |
| 990 tty_lock->lock_without_safepoint_check(); | |
| 991 // got the lock | |
| 992 if (writer_id != _last_writer) { | |
| 993 if (has_log) { | |
| 994 _log_file->bol(); | |
| 995 // output a hint where this output is coming from: | |
| 6843 | 996 _log_file->print_cr("<writer thread='" UINTX_FORMAT "'/>", writer_id); |
| 0 | 997 } |
| 998 _last_writer = writer_id; | |
| 999 } | |
| 1000 _writer = writer_id; | |
| 1001 return writer_id; | |
| 1002 } | |
| 1003 | |
| 1004 void defaultStream::release(intx holder) { | |
| 1005 if (holder == NO_WRITER) { | |
| 1006 // nothing to release: either a recursive lock, or we scribbled (too bad) | |
| 1007 return; | |
| 1008 } | |
| 1009 if (_writer != holder) { | |
| 1010 return; // already unlocked, perhaps via break_tty_lock_for_safepoint | |
| 1011 } | |
| 1012 _writer = NO_WRITER; | |
| 1013 tty_lock->unlock(); | |
| 1014 } | |
| 1015 | |
| 1016 | |
| 1017 // Yuck: jio_print does not accept char*/len. | |
| 1018 static void call_jio_print(const char* s, size_t len) { | |
| 1019 char buffer[O_BUFLEN+100]; | |
| 1020 if (len > sizeof(buffer)-1) { | |
| 1021 warning("increase O_BUFLEN in ostream.cpp -- output truncated"); | |
| 1022 len = sizeof(buffer)-1; | |
| 1023 } | |
| 1024 strncpy(buffer, s, len); | |
| 1025 buffer[len] = '\0'; | |
| 1026 jio_print(buffer); | |
| 1027 } | |
| 1028 | |
| 1029 | |
| 1030 void defaultStream::write(const char* s, size_t len) { | |
| 1031 intx thread_id = os::current_thread_id(); | |
| 1032 intx holder = hold(thread_id); | |
| 1033 | |
| 1034 if (DisplayVMOutput && | |
| 1035 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { | |
| 1036 // print to output stream. It can be redirected by a vfprintf hook | |
| 1037 if (s[len] == '\0') { | |
| 1038 jio_print(s); | |
| 1039 } else { | |
| 1040 call_jio_print(s, len); | |
| 1041 } | |
| 1042 } | |
| 1043 | |
| 1044 // print to log file | |
| 1045 if (has_log_file()) { | |
| 1046 int nl0 = _newlines; | |
| 1047 xmlTextStream::write(s, len); | |
| 1048 // flush the log file too, if there were any newlines | |
| 1049 if (nl0 != _newlines){ | |
| 1050 flush(); | |
| 1051 } | |
| 1052 } else { | |
| 1053 update_position(s, len); | |
| 1054 } | |
| 1055 | |
| 1056 release(holder); | |
| 1057 } | |
| 1058 | |
| 1059 intx ttyLocker::hold_tty() { | |
| 1060 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; | |
| 1061 intx thread_id = os::current_thread_id(); | |
| 1062 return defaultStream::instance->hold(thread_id); | |
| 1063 } | |
| 1064 | |
| 1065 void ttyLocker::release_tty(intx holder) { | |
| 1066 if (holder == defaultStream::NO_WRITER) return; | |
| 1067 defaultStream::instance->release(holder); | |
| 1068 } | |
| 1069 | |
|
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1070 bool ttyLocker::release_tty_if_locked() { |
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1071 intx thread_id = os::current_thread_id(); |
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1072 if (defaultStream::instance->writer() == thread_id) { |
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1073 // release the lock and return true so callers know if was |
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1074 // previously held. |
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1075 release_tty(thread_id); |
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1076 return true; |
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1077 } |
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1078 return false; |
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1079 } |
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1080 |
| 0 | 1081 void ttyLocker::break_tty_lock_for_safepoint(intx holder) { |
| 1082 if (defaultStream::instance != NULL && | |
| 1083 defaultStream::instance->writer() == holder) { | |
| 1084 if (xtty != NULL) { | |
| 1085 xtty->print_cr("<!-- safepoint while printing -->"); | |
| 1086 } | |
| 1087 defaultStream::instance->release(holder); | |
| 1088 } | |
| 1089 // (else there was no lock to break) | |
| 1090 } | |
| 1091 | |
| 1092 void ostream_init() { | |
| 1093 if (defaultStream::instance == NULL) { | |
| 6197 | 1094 defaultStream::instance = new(ResourceObj::C_HEAP, mtInternal) defaultStream(); |
| 0 | 1095 tty = defaultStream::instance; |
| 1096 | |
| 1097 // We want to ensure that time stamps in GC logs consider time 0 | |
| 1098 // the time when the JVM is initialized, not the first time we ask | |
| 1099 // for a time stamp. So, here, we explicitly update the time stamp | |
| 1100 // of tty. | |
| 1101 tty->time_stamp().update_to(1); | |
| 1102 } | |
| 1103 } | |
| 1104 | |
| 1105 void ostream_init_log() { | |
| 1106 // For -Xloggc:<file> option - called in runtime/thread.cpp | |
| 1107 // Note : this must be called AFTER ostream_init() | |
| 1108 | |
| 1109 gclog_or_tty = tty; // default to tty | |
| 1110 if (Arguments::gc_log_filename() != NULL) { | |
| 12215 | 1111 fileStream * gclog = new(ResourceObj::C_HEAP, mtInternal) |
| 1112 gcLogFileStream(Arguments::gc_log_filename()); | |
| 0 | 1113 if (gclog->is_open()) { |
| 1114 // now we update the time stamp of the GC log to be synced up | |
| 1115 // with tty. | |
| 1116 gclog->time_stamp().update_to(tty->time_stamp().ticks()); | |
| 1117 } | |
|
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1118 gclog_or_tty = gclog; |
| 0 | 1119 } |
| 1120 | |
|
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1121 #if INCLUDE_CDS |
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1122 // For -XX:DumpLoadedClassList=<file> option |
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1123 if (DumpLoadedClassList != NULL) { |
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1124 const char* list_name = make_log_name(DumpLoadedClassList, NULL); |
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1125 classlist_file = new(ResourceObj::C_HEAP, mtInternal) |
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1126 fileStream(list_name); |
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1127 FREE_C_HEAP_ARRAY(char, list_name, mtInternal); |
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1128 } |
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1129 #endif |
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1130 |
| 0 | 1131 // If we haven't lazily initialized the logfile yet, do it now, |
| 1132 // to avoid the possibility of lazy initialization during a VM | |
| 1133 // crash, which can affect the stability of the fatal error handler. | |
| 1134 defaultStream::instance->has_log_file(); | |
| 1135 } | |
| 1136 | |
| 1137 // ostream_exit() is called during normal VM exit to finish log files, flush | |
| 1138 // output and free resource. | |
| 1139 void ostream_exit() { | |
| 1140 static bool ostream_exit_called = false; | |
| 1141 if (ostream_exit_called) return; | |
| 1142 ostream_exit_called = true; | |
|
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1143 #if INCLUDE_CDS |
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1144 if (classlist_file != NULL) { |
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1145 delete classlist_file; |
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1146 } |
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1147 #endif |
| 0 | 1148 if (gclog_or_tty != tty) { |
| 1149 delete gclog_or_tty; | |
| 1150 } | |
| 1151 { | |
| 1152 // we temporaly disable PrintMallocFree here | |
| 1153 // as otherwise it'll lead to using of almost deleted | |
| 1154 // tty or defaultStream::instance in logging facility | |
| 1155 // of HeapFree(), see 6391258 | |
| 1156 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) | |
| 1157 if (tty != defaultStream::instance) { | |
| 1158 delete tty; | |
| 1159 } | |
| 1160 if (defaultStream::instance != NULL) { | |
| 1161 delete defaultStream::instance; | |
| 1162 } | |
| 1163 } | |
| 1164 tty = NULL; | |
| 1165 xtty = NULL; | |
| 1166 gclog_or_tty = NULL; | |
| 1167 defaultStream::instance = NULL; | |
| 1168 } | |
| 1169 | |
| 1170 // ostream_abort() is called by os::abort() when VM is about to die. | |
| 1171 void ostream_abort() { | |
| 1172 // Here we can't delete gclog_or_tty and tty, just flush their output | |
| 1173 if (gclog_or_tty) gclog_or_tty->flush(); | |
| 1174 if (tty) tty->flush(); | |
| 1175 | |
| 1176 if (defaultStream::instance != NULL) { | |
| 1177 static char buf[4096]; | |
| 1178 defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); | |
| 1179 } | |
| 1180 } | |
| 1181 | |
| 1182 staticBufferStream::staticBufferStream(char* buffer, size_t buflen, | |
| 1183 outputStream *outer_stream) { | |
| 1184 _buffer = buffer; | |
| 1185 _buflen = buflen; | |
| 1186 _outer_stream = outer_stream; | |
|
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1187 // compile task prints time stamp relative to VM start |
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1188 _stamp.update_to(1); |
| 0 | 1189 } |
| 1190 | |
| 1191 void staticBufferStream::write(const char* c, size_t len) { | |
| 1192 _outer_stream->print_raw(c, (int)len); | |
| 1193 } | |
| 1194 | |
| 1195 void staticBufferStream::flush() { | |
| 1196 _outer_stream->flush(); | |
| 1197 } | |
| 1198 | |
| 1199 void staticBufferStream::print(const char* format, ...) { | |
| 1200 va_list ap; | |
| 1201 va_start(ap, format); | |
| 1202 size_t len; | |
| 1203 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); | |
| 1204 write(str, len); | |
| 1205 va_end(ap); | |
| 1206 } | |
| 1207 | |
| 1208 void staticBufferStream::print_cr(const char* format, ...) { | |
| 1209 va_list ap; | |
| 1210 va_start(ap, format); | |
| 1211 size_t len; | |
| 1212 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); | |
| 1213 write(str, len); | |
| 1214 va_end(ap); | |
| 1215 } | |
| 1216 | |
| 1217 void staticBufferStream::vprint(const char *format, va_list argptr) { | |
| 1218 size_t len; | |
| 1219 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); | |
| 1220 write(str, len); | |
| 1221 } | |
| 1222 | |
| 1223 void staticBufferStream::vprint_cr(const char* format, va_list argptr) { | |
| 1224 size_t len; | |
| 1225 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); | |
| 1226 write(str, len); | |
| 1227 } | |
| 1228 | |
| 222 | 1229 bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { |
| 0 | 1230 buffer_length = initial_size; |
| 6197 | 1231 buffer = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); |
| 0 | 1232 buffer_pos = 0; |
| 1233 buffer_fixed = false; | |
| 222 | 1234 buffer_max = bufmax; |
| 0 | 1235 } |
| 1236 | |
| 222 | 1237 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { |
| 0 | 1238 buffer_length = fixed_buffer_size; |
| 1239 buffer = fixed_buffer; | |
| 1240 buffer_pos = 0; | |
| 1241 buffer_fixed = true; | |
| 222 | 1242 buffer_max = bufmax; |
| 0 | 1243 } |
| 1244 | |
| 1245 void bufferedStream::write(const char* s, size_t len) { | |
| 222 | 1246 |
| 1247 if(buffer_pos + len > buffer_max) { | |
| 1248 flush(); | |
| 1249 } | |
| 1250 | |
| 0 | 1251 size_t end = buffer_pos + len; |
| 1252 if (end >= buffer_length) { | |
| 1253 if (buffer_fixed) { | |
| 1254 // if buffer cannot resize, silently truncate | |
| 1255 len = buffer_length - buffer_pos - 1; | |
| 1256 } else { | |
| 1257 // For small overruns, double the buffer. For larger ones, | |
| 1258 // increase to the requested size. | |
| 1259 if (end < buffer_length * 2) { | |
| 1260 end = buffer_length * 2; | |
| 1261 } | |
| 6197 | 1262 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end, mtInternal); |
| 0 | 1263 buffer_length = end; |
| 1264 } | |
| 1265 } | |
| 1266 memcpy(buffer + buffer_pos, s, len); | |
| 1267 buffer_pos += len; | |
| 1268 update_position(s, len); | |
| 1269 } | |
| 1270 | |
| 1271 char* bufferedStream::as_string() { | |
| 1272 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
| 1273 strncpy(copy, buffer, buffer_pos); | |
| 1274 copy[buffer_pos] = 0; // terminating null | |
| 1275 return copy; | |
| 1276 } | |
| 1277 | |
| 1278 bufferedStream::~bufferedStream() { | |
| 1279 if (!buffer_fixed) { | |
| 6197 | 1280 FREE_C_HEAP_ARRAY(char, buffer, mtInternal); |
| 0 | 1281 } |
| 1282 } | |
| 1283 | |
| 1284 #ifndef PRODUCT | |
| 1285 | |
| 14411 | 1286 #if defined(SOLARIS) || defined(LINUX) || defined(AIX) || defined(_ALLBSD_SOURCE) |
| 0 | 1287 #include <sys/types.h> |
| 1288 #include <sys/socket.h> | |
| 1289 #include <netinet/in.h> | |
| 1290 #include <arpa/inet.h> | |
| 1291 #endif | |
| 1292 | |
| 1293 // Network access | |
| 222 | 1294 networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { |
| 0 | 1295 |
| 1296 _socket = -1; | |
| 1297 | |
|
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1298 int result = os::socket(AF_INET, SOCK_STREAM, 0); |
| 0 | 1299 if (result <= 0) { |
| 1300 assert(false, "Socket could not be created!"); | |
| 1301 } else { | |
| 1302 _socket = result; | |
| 1303 } | |
| 1304 } | |
| 1305 | |
| 1306 int networkStream::read(char *buf, size_t len) { | |
|
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1307 return os::recv(_socket, buf, (int)len, 0); |
| 0 | 1308 } |
| 1309 | |
| 1310 void networkStream::flush() { | |
| 1311 if (size() != 0) { | |
|
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1312 int result = os::raw_send(_socket, (char *)base(), size(), 0); |
| 222 | 1313 assert(result != -1, "connection error"); |
| 1314 assert(result == (int)size(), "didn't send enough data"); | |
| 0 | 1315 } |
| 1316 reset(); | |
| 1317 } | |
| 1318 | |
| 1319 networkStream::~networkStream() { | |
| 1320 close(); | |
| 1321 } | |
| 1322 | |
| 1323 void networkStream::close() { | |
| 1324 if (_socket != -1) { | |
| 1325 flush(); | |
|
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1326 os::socket_close(_socket); |
| 0 | 1327 _socket = -1; |
| 1328 } | |
| 1329 } | |
| 1330 | |
| 1331 bool networkStream::connect(const char *ip, short port) { | |
| 1332 | |
| 1333 struct sockaddr_in server; | |
| 1334 server.sin_family = AF_INET; | |
| 1335 server.sin_port = htons(port); | |
| 1336 | |
| 1337 server.sin_addr.s_addr = inet_addr(ip); | |
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1338 if (server.sin_addr.s_addr == (uint32_t)-1) { |
|
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1339 struct hostent* host = os::get_host_by_name((char*)ip); |
| 0 | 1340 if (host != NULL) { |
| 1341 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); | |
| 1342 } else { | |
| 1343 return false; | |
| 1344 } | |
| 1345 } | |
| 1346 | |
| 1347 | |
|
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1348 int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); |
| 0 | 1349 return (result >= 0); |
| 1350 } | |
| 1351 | |
| 1352 #endif |