Mercurial > hg > truffle
annotate src/share/vm/utilities/xmlstream.cpp @ 4142:bc8527f3071c
Adjust code base to new level of warnings.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sun, 18 Dec 2011 05:24:06 +0100 |
parents | 1d1603768966 |
children | 1ac084126285 |
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0 | 1 /* |
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2 * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "code/nmethod.hpp" | |
27 #include "memory/allocation.hpp" | |
28 #include "memory/allocation.inline.hpp" | |
29 #include "oops/methodDataOop.hpp" | |
30 #include "oops/methodOop.hpp" | |
31 #include "oops/oop.inline.hpp" | |
32 #include "runtime/deoptimization.hpp" | |
33 #include "runtime/vmThread.hpp" | |
34 #include "utilities/xmlstream.hpp" | |
0 | 35 |
36 void xmlStream::initialize(outputStream* out) { | |
37 _out = out; | |
38 _last_flush = 0; | |
39 _markup_state = BODY; | |
40 _text_init._outer_xmlStream = this; | |
41 _text = &_text_init; | |
42 | |
43 #ifdef ASSERT | |
44 _element_depth = 0; | |
45 int init_len = 100; | |
46 char* init_buf = NEW_C_HEAP_ARRAY(char, init_len); | |
47 _element_close_stack_low = init_buf; | |
48 _element_close_stack_high = init_buf + init_len; | |
49 _element_close_stack_ptr = init_buf + init_len - 1; | |
50 _element_close_stack_ptr[0] = '\0'; | |
51 #endif | |
52 | |
53 // Make sure each log uses the same base for time stamps. | |
54 if (is_open()) { | |
55 _out->time_stamp().update_to(1); | |
56 } | |
57 } | |
58 | |
59 #ifdef ASSERT | |
60 xmlStream::~xmlStream() { | |
61 FREE_C_HEAP_ARRAY(char, _element_close_stack_low); | |
62 } | |
63 #endif | |
64 | |
65 // Pass the given chars directly to _out. | |
66 void xmlStream::write(const char* s, size_t len) { | |
67 if (!is_open()) return; | |
68 | |
69 out()->write(s, len); | |
222 | 70 update_position(s, len); |
0 | 71 } |
72 | |
73 | |
74 // Pass the given chars directly to _out, except that | |
75 // we watch for special "<&>" chars. | |
76 // This is suitable for either attribute text or for body text. | |
77 // We don't fool with "<![CDATA[" quotes, just single-character entities. | |
78 // This makes it easier for dumb tools to parse the output. | |
79 void xmlStream::write_text(const char* s, size_t len) { | |
80 if (!is_open()) return; | |
81 | |
82 size_t written = 0; | |
83 // All normally printed material goes inside XML quotes. | |
84 // This leaves the output free to include markup also. | |
85 // Scan the string looking for inadvertant "<&>" chars | |
86 for (size_t i = 0; i < len; i++) { | |
87 char ch = s[i]; | |
88 // Escape special chars. | |
89 const char* esc = NULL; | |
90 switch (ch) { | |
91 // These are important only in attrs, but we do them always: | |
92 case '\'': esc = "'"; break; | |
93 case '"': esc = """; break; | |
94 case '<': esc = "<"; break; | |
95 case '&': esc = "&"; break; | |
96 // This is a freebie. | |
97 case '>': esc = ">"; break; | |
98 } | |
99 if (esc != NULL) { | |
100 if (written < i) { | |
101 out()->write(&s[written], i - written); | |
102 written = i; | |
103 } | |
104 out()->print_raw(esc); | |
105 written++; | |
106 } | |
107 } | |
108 | |
109 // Print the clean remainder. Usually, it is all of s. | |
110 if (written < len) { | |
111 out()->write(&s[written], len - written); | |
112 } | |
113 } | |
114 | |
115 // ------------------------------------------------------------------ | |
116 // Outputs XML text, with special characters quoted. | |
117 void xmlStream::text(const char* format, ...) { | |
118 va_list ap; | |
119 va_start(ap, format); | |
120 va_text(format, ap); | |
121 va_end(ap); | |
122 } | |
123 | |
124 #define BUFLEN 2*K /* max size of output of individual print methods */ | |
125 | |
126 // ------------------------------------------------------------------ | |
127 void xmlStream::va_tag(bool push, const char* format, va_list ap) { | |
128 assert_if_no_error(!inside_attrs(), "cannot print tag inside attrs"); | |
129 char buffer[BUFLEN]; | |
130 size_t len; | |
131 const char* kind = do_vsnprintf(buffer, BUFLEN, format, ap, false, len); | |
132 see_tag(kind, push); | |
133 print_raw("<"); | |
134 write(kind, len); | |
135 _markup_state = (push ? HEAD : ELEM); | |
136 } | |
137 | |
138 #ifdef ASSERT | |
139 /// Debugging goo to make sure element tags nest properly. | |
140 | |
141 // ------------------------------------------------------------------ | |
142 void xmlStream::see_tag(const char* tag, bool push) { | |
143 assert_if_no_error(!inside_attrs(), "cannot start new element inside attrs"); | |
144 if (!push) return; | |
145 | |
146 // tag goes up until either null or space: | |
147 const char* tag_end = strchr(tag, ' '); | |
148 size_t tag_len = (tag_end == NULL) ? strlen(tag) : tag_end - tag; | |
149 assert(tag_len > 0, "tag must not be empty"); | |
150 // push the tag onto the stack, pulling down the pointer | |
151 char* old_ptr = _element_close_stack_ptr; | |
152 char* old_low = _element_close_stack_low; | |
153 char* push_ptr = old_ptr - (tag_len+1); | |
154 if (push_ptr < old_low) { | |
155 int old_len = _element_close_stack_high - old_ptr; | |
156 int new_len = old_len * 2; | |
157 if (new_len < 100) new_len = 100; | |
158 char* new_low = NEW_C_HEAP_ARRAY(char, new_len); | |
159 char* new_high = new_low + new_len; | |
160 char* new_ptr = new_high - old_len; | |
161 memcpy(new_ptr, old_ptr, old_len); | |
162 _element_close_stack_high = new_high; | |
163 _element_close_stack_low = new_low; | |
164 _element_close_stack_ptr = new_ptr; | |
165 FREE_C_HEAP_ARRAY(char, old_low); | |
166 push_ptr = new_ptr - (tag_len+1); | |
167 } | |
168 assert(push_ptr >= _element_close_stack_low, "in range"); | |
169 memcpy(push_ptr, tag, tag_len); | |
170 push_ptr[tag_len] = 0; | |
171 _element_close_stack_ptr = push_ptr; | |
172 _element_depth += 1; | |
173 } | |
174 | |
175 // ------------------------------------------------------------------ | |
176 void xmlStream::pop_tag(const char* tag) { | |
177 assert_if_no_error(!inside_attrs(), "cannot close element inside attrs"); | |
178 assert(_element_depth > 0, "must be in an element to close"); | |
179 assert(*tag != 0, "tag must not be empty"); | |
180 char* cur_tag = _element_close_stack_ptr; | |
181 bool bad_tag = false; | |
182 while (*cur_tag != 0 && strcmp(cur_tag, tag) != 0) { | |
183 this->print_cr("</%s> <!-- missing closing tag -->", cur_tag); | |
184 _element_close_stack_ptr = (cur_tag += strlen(cur_tag) + 1); | |
185 _element_depth -= 1; | |
186 bad_tag = true; | |
187 } | |
188 if (*cur_tag == 0) { | |
189 bad_tag = true; | |
190 } else { | |
191 // Pop the stack, by skipping over the tag and its null. | |
192 _element_close_stack_ptr = cur_tag + strlen(cur_tag) + 1; | |
193 _element_depth -= 1; | |
194 } | |
195 if (bad_tag && !VMThread::should_terminate() && !is_error_reported()) | |
196 assert(false, "bad tag in log"); | |
197 } | |
198 #endif | |
199 | |
200 | |
201 // ------------------------------------------------------------------ | |
202 // First word in formatted string is element kind, and any subsequent | |
203 // words must be XML attributes. Outputs "<kind .../>". | |
204 void xmlStream::elem(const char* format, ...) { | |
205 va_list ap; | |
206 va_start(ap, format); | |
207 va_elem(format, ap); | |
208 va_end(ap); | |
209 } | |
210 | |
211 // ------------------------------------------------------------------ | |
212 void xmlStream::va_elem(const char* format, va_list ap) { | |
213 va_begin_elem(format, ap); | |
214 end_elem(); | |
215 } | |
216 | |
217 | |
218 // ------------------------------------------------------------------ | |
219 // First word in formatted string is element kind, and any subsequent | |
220 // words must be XML attributes. Outputs "<kind ...", not including "/>". | |
221 void xmlStream::begin_elem(const char* format, ...) { | |
222 va_list ap; | |
223 va_start(ap, format); | |
224 va_tag(false, format, ap); | |
225 va_end(ap); | |
226 } | |
227 | |
228 // ------------------------------------------------------------------ | |
229 void xmlStream::va_begin_elem(const char* format, va_list ap) { | |
230 va_tag(false, format, ap); | |
231 } | |
232 | |
233 // ------------------------------------------------------------------ | |
234 // Outputs "/>". | |
235 void xmlStream::end_elem() { | |
236 assert(_markup_state == ELEM, "misplaced end_elem"); | |
237 print_raw("/>\n"); | |
238 _markup_state = BODY; | |
239 } | |
240 | |
241 // ------------------------------------------------------------------ | |
242 // Outputs formatted text, followed by "/>". | |
243 void xmlStream::end_elem(const char* format, ...) { | |
244 va_list ap; | |
245 va_start(ap, format); | |
246 out()->vprint(format, ap); | |
247 va_end(ap); | |
248 end_elem(); | |
249 } | |
250 | |
251 | |
252 // ------------------------------------------------------------------ | |
253 // First word in formatted string is element kind, and any subsequent | |
254 // words must be XML attributes. Outputs "<kind ...>". | |
255 void xmlStream::head(const char* format, ...) { | |
256 va_list ap; | |
257 va_start(ap, format); | |
258 va_head(format, ap); | |
259 va_end(ap); | |
260 } | |
261 | |
262 // ------------------------------------------------------------------ | |
263 void xmlStream::va_head(const char* format, va_list ap) { | |
264 va_begin_head(format, ap); | |
265 end_head(); | |
266 } | |
267 | |
268 // ------------------------------------------------------------------ | |
269 // First word in formatted string is element kind, and any subsequent | |
270 // words must be XML attributes. Outputs "<kind ...", not including ">". | |
271 void xmlStream::begin_head(const char* format, ...) { | |
272 va_list ap; | |
273 va_start(ap, format); | |
274 va_tag(true, format, ap); | |
275 va_end(ap); | |
276 } | |
277 | |
278 // ------------------------------------------------------------------ | |
279 void xmlStream::va_begin_head(const char* format, va_list ap) { | |
280 va_tag(true, format, ap); | |
281 } | |
282 | |
283 // ------------------------------------------------------------------ | |
284 // Outputs ">". | |
285 void xmlStream::end_head() { | |
286 assert(_markup_state == HEAD, "misplaced end_head"); | |
287 print_raw(">\n"); | |
288 _markup_state = BODY; | |
289 } | |
290 | |
291 | |
292 // ------------------------------------------------------------------ | |
293 // Outputs formatted text, followed by ">". | |
294 void xmlStream::end_head(const char* format, ...) { | |
295 va_list ap; | |
296 va_start(ap, format); | |
297 out()->vprint(format, ap); | |
298 va_end(ap); | |
299 end_head(); | |
300 } | |
301 | |
302 | |
303 // ------------------------------------------------------------------ | |
304 // Outputs "</kind>". | |
305 void xmlStream::tail(const char* kind) { | |
306 pop_tag(kind); | |
307 print_raw("</"); | |
308 print_raw(kind); | |
309 print_raw(">\n"); | |
310 } | |
311 | |
312 // ------------------------------------------------------------------ | |
313 // Outputs "<kind_done ... stamp='D.DD'/> </kind>". | |
314 void xmlStream::done(const char* format, ...) { | |
315 va_list ap; | |
316 va_start(ap, format); | |
317 va_done(format, ap); | |
318 va_end(ap); | |
319 } | |
320 | |
321 // ------------------------------------------------------------------ | |
322 // Outputs "<kind_done stamp='D.DD'/> </kind>". | |
323 // Because done_raw() doesn't need to format strings, it's simpler than | |
324 // done(), and can be called safely by fatal error handler. | |
325 void xmlStream::done_raw(const char* kind) { | |
326 print_raw("<"); | |
327 print_raw(kind); | |
328 print_raw("_done stamp='"); | |
329 out()->stamp(); | |
330 print_raw_cr("'/>"); | |
331 print_raw("</"); | |
332 print_raw(kind); | |
333 print_raw_cr(">"); | |
334 } | |
335 | |
336 // ------------------------------------------------------------------ | |
337 void xmlStream::va_done(const char* format, va_list ap) { | |
338 char buffer[200]; | |
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339 guarantee(strlen(format) + 10 < sizeof(buffer), "bigger format buffer"); |
0 | 340 const char* kind = format; |
341 const char* kind_end = strchr(kind, ' '); | |
342 size_t kind_len = (kind_end != NULL) ? (kind_end - kind) : strlen(kind); | |
343 strncpy(buffer, kind, kind_len); | |
344 strcpy(buffer + kind_len, "_done"); | |
345 strcat(buffer, format + kind_len); | |
346 // Output the trailing event with the timestamp. | |
347 va_begin_elem(buffer, ap); | |
348 stamp(); | |
349 end_elem(); | |
350 // Output the tail-tag of the enclosing element. | |
351 buffer[kind_len] = 0; | |
352 tail(buffer); | |
353 } | |
354 | |
355 // Output a timestamp attribute. | |
356 void xmlStream::stamp() { | |
357 assert_if_no_error(inside_attrs(), "stamp must be an attribute"); | |
358 print_raw(" stamp='"); | |
359 out()->stamp(); | |
360 print_raw("'"); | |
361 } | |
362 | |
363 | |
364 // ------------------------------------------------------------------ | |
365 // Output a method attribute, in the form " method='pkg/cls name sig'". | |
366 // This is used only when there is no ciMethod available. | |
367 void xmlStream::method(methodHandle method) { | |
368 assert_if_no_error(inside_attrs(), "printing attributes"); | |
369 if (method.is_null()) return; | |
370 print_raw(" method='"); | |
371 method_text(method); | |
372 print("' bytes='%d'", method->code_size()); | |
373 print(" count='%d'", method->invocation_count()); | |
374 int bec = method->backedge_count(); | |
375 if (bec != 0) print(" backedge_count='%d'", bec); | |
376 print(" iicount='%d'", method->interpreter_invocation_count()); | |
377 int throwouts = method->interpreter_throwout_count(); | |
378 if (throwouts != 0) print(" throwouts='%d'", throwouts); | |
379 methodDataOop mdo = method->method_data(); | |
380 if (mdo != NULL) { | |
381 uint cnt; | |
382 cnt = mdo->decompile_count(); | |
383 if (cnt != 0) print(" decompiles='%d'", cnt); | |
384 for (uint reason = 0; reason < mdo->trap_reason_limit(); reason++) { | |
385 cnt = mdo->trap_count(reason); | |
386 if (cnt != 0) print(" %s_traps='%d'", Deoptimization::trap_reason_name(reason), cnt); | |
387 } | |
388 cnt = mdo->overflow_trap_count(); | |
389 if (cnt != 0) print(" overflow_traps='%d'", cnt); | |
390 cnt = mdo->overflow_recompile_count(); | |
391 if (cnt != 0) print(" overflow_recompiles='%d'", cnt); | |
392 } | |
393 } | |
394 | |
395 void xmlStream::method_text(methodHandle method) { | |
396 assert_if_no_error(inside_attrs(), "printing attributes"); | |
397 if (method.is_null()) return; | |
398 //method->print_short_name(text()); | |
399 method->method_holder()->klass_part()->name()->print_symbol_on(text()); | |
400 print_raw(" "); // " " is easier for tools to parse than "::" | |
401 method->name()->print_symbol_on(text()); | |
402 print_raw(" "); // separator | |
403 method->signature()->print_symbol_on(text()); | |
404 } | |
405 | |
406 | |
407 // ------------------------------------------------------------------ | |
408 // Output a klass attribute, in the form " klass='pkg/cls'". | |
409 // This is used only when there is no ciKlass available. | |
410 void xmlStream::klass(KlassHandle klass) { | |
411 assert_if_no_error(inside_attrs(), "printing attributes"); | |
412 if (klass.is_null()) return; | |
413 print_raw(" klass='"); | |
414 klass_text(klass); | |
415 print_raw("'"); | |
416 } | |
417 | |
418 void xmlStream::klass_text(KlassHandle klass) { | |
419 assert_if_no_error(inside_attrs(), "printing attributes"); | |
420 if (klass.is_null()) return; | |
421 //klass->print_short_name(log->out()); | |
422 klass->name()->print_symbol_on(out()); | |
423 } | |
424 | |
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425 void xmlStream::name(const Symbol* name) { |
0 | 426 assert_if_no_error(inside_attrs(), "printing attributes"); |
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427 if (name == NULL) return; |
0 | 428 print_raw(" name='"); |
429 name_text(name); | |
430 print_raw("'"); | |
431 } | |
432 | |
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433 void xmlStream::name_text(const Symbol* name) { |
0 | 434 assert_if_no_error(inside_attrs(), "printing attributes"); |
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435 if (name == NULL) return; |
0 | 436 //name->print_short_name(text()); |
437 name->print_symbol_on(text()); | |
438 } | |
439 | |
440 void xmlStream::object(const char* attr, Handle x) { | |
441 assert_if_no_error(inside_attrs(), "printing attributes"); | |
442 if (x.is_null()) return; | |
443 print_raw(" "); | |
444 print_raw(attr); | |
445 print_raw("='"); | |
446 object_text(x); | |
447 print_raw("'"); | |
448 } | |
449 | |
450 void xmlStream::object_text(Handle x) { | |
451 assert_if_no_error(inside_attrs(), "printing attributes"); | |
452 if (x.is_null()) return; | |
453 //x->print_value_on(text()); | |
454 if (x->is_method()) | |
455 method_text(methodOop(x())); | |
456 else if (x->is_klass()) | |
457 klass_text(klassOop(x())); | |
458 else | |
459 x->print_value_on(text()); | |
460 } | |
461 | |
462 | |
463 void xmlStream::flush() { | |
464 out()->flush(); | |
465 _last_flush = count(); | |
466 } | |
467 | |
468 void xmlTextStream::flush() { | |
469 if (_outer_xmlStream == NULL) return; | |
470 _outer_xmlStream->flush(); | |
471 } | |
472 | |
473 void xmlTextStream::write(const char* str, size_t len) { | |
474 if (_outer_xmlStream == NULL) return; | |
475 _outer_xmlStream->write_text(str, len); | |
476 update_position(str, len); | |
477 } |