Mercurial > hg > truffle
annotate src/share/vm/utilities/ostream.cpp @ 17541:4aa6fa2864af
Merge
author | asaha |
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date | Thu, 23 Jan 2014 14:50:08 -0800 |
parents | bf8a21c3ab3b |
children | 096c224171c4 2b8e28fdf503 |
rev | line source |
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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 | |
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468 // in log_name, %p => pid1234 and |
12215 | 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) { |
513
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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) { | |
513
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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_%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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828eafbd85cc
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parents:
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diff
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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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828eafbd85cc
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diff
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|
1262 return os::recv(_socket, buf, (int)len, 0); |
0 | 1263 } |
1264 | |
1265 void networkStream::flush() { | |
1266 if (size() != 0) { | |
4717
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diff
changeset
|
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(); | |
1980
828eafbd85cc
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parents:
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diff
changeset
|
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); | |
80
092ea87cc974
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0
diff
changeset
|
1293 if (server.sin_addr.s_addr == (uint32_t)-1) { |
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828eafbd85cc
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parents:
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diff
changeset
|
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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parents:
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diff
changeset
|
1303 int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); |
0 | 1304 return (result >= 0); |
1305 } | |
1306 | |
1307 #endif |