50113
|
1 |
/*
|
|
2 |
* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
|
|
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 |
*
|
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
20 |
* or visit www.oracle.com if you need additional information or have any
|
|
21 |
* questions.
|
|
22 |
*
|
|
23 |
*/
|
|
24 |
|
|
25 |
#ifndef SHARE_VM_JFR_WRITERS_JFRWRITERHOST_INLINE_HPP
|
|
26 |
#define SHARE_VM_JFR_WRITERS_JFRWRITERHOST_INLINE_HPP
|
|
27 |
|
|
28 |
#include "classfile/javaClasses.hpp"
|
|
29 |
#include "jfr/recorder/checkpoint/types/traceid/jfrTraceId.inline.hpp"
|
|
30 |
#include "jfr/recorder/service/jfrOptionSet.hpp"
|
|
31 |
#include "jfr/writers/jfrEncoding.hpp"
|
|
32 |
#include "jfr/writers/jfrWriterHost.hpp"
|
|
33 |
#include "memory/resourceArea.hpp"
|
|
34 |
#include "oops/oop.hpp"
|
|
35 |
#include "oops/symbol.hpp"
|
|
36 |
#include "oops/typeArrayOop.inline.hpp"
|
|
37 |
|
|
38 |
inline bool compressed_integers() {
|
|
39 |
static const bool comp_integers = JfrOptionSet::compressed_integers();
|
|
40 |
return comp_integers;
|
|
41 |
}
|
|
42 |
|
|
43 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
44 |
template <typename T>
|
|
45 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write_padded(T value) {
|
|
46 |
write_padded(&value, 1);
|
|
47 |
}
|
|
48 |
|
|
49 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
50 |
template <typename T>
|
|
51 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write_padded(const T* value, size_t len) {
|
|
52 |
assert(value != NULL, "invariant");
|
|
53 |
assert(len > 0, "invariant");
|
|
54 |
u1* const pos = ensure_size(sizeof(T) * len);
|
|
55 |
if (pos) {
|
|
56 |
this->set_current_pos(write_padded(value, len, pos));
|
|
57 |
}
|
|
58 |
}
|
|
59 |
|
|
60 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
61 |
template <typename T>
|
|
62 |
inline u1* WriterHost<BE, IE, WriterPolicyImpl>::write_padded(const T* value, size_t len, u1* pos) {
|
|
63 |
assert(value != NULL, "invariant");
|
|
64 |
assert(len > 0, "invariant");
|
|
65 |
assert(pos != NULL, "invariant");
|
|
66 |
return _compressed_integers ? IE::write_padded(value, len, pos) : BE::write_padded(value, len, pos);
|
|
67 |
}
|
|
68 |
|
|
69 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
70 |
template <typename T>
|
|
71 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write(const T* value, size_t len) {
|
|
72 |
assert(value != NULL, "invariant");
|
|
73 |
assert(len > 0, "invariant");
|
|
74 |
u1* const pos = ensure_size(sizeof(T) * len);
|
|
75 |
if (pos) {
|
|
76 |
this->set_current_pos(write(value, len, pos));
|
|
77 |
}
|
|
78 |
}
|
|
79 |
|
|
80 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
81 |
template <typename T>
|
|
82 |
inline u1* WriterHost<BE, IE, WriterPolicyImpl>::write(const T* value, size_t len, u1* pos) {
|
|
83 |
assert(value != NULL, "invariant");
|
|
84 |
assert(len > 0, "invariant");
|
|
85 |
assert(pos != NULL, "invariant");
|
|
86 |
return _compressed_integers ? IE::write(value, len, pos) : BE::write(value, len, pos);
|
|
87 |
}
|
|
88 |
|
|
89 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
90 |
void WriterHost<BE, IE, WriterPolicyImpl>::write_utf8(const char* value) {
|
|
91 |
if (NULL == value) {
|
|
92 |
// only write encoding byte indicating NULL string
|
|
93 |
write<u1>(NULL_STRING);
|
|
94 |
return;
|
|
95 |
}
|
|
96 |
write<u1>(UTF8); // designate encoding
|
|
97 |
const jint len = MIN2<jint>(max_jint, (jint)strlen(value));
|
|
98 |
write(len);
|
|
99 |
if (len > 0) {
|
|
100 |
be_write(value, len);
|
|
101 |
}
|
|
102 |
}
|
|
103 |
|
|
104 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
105 |
void WriterHost<BE, IE, WriterPolicyImpl>::write_utf16(const jchar* value, jint len) {
|
|
106 |
assert(value != NULL, "invariant");
|
|
107 |
write((u1)UTF16); // designate encoding
|
|
108 |
write(len);
|
|
109 |
if (len > 0) {
|
|
110 |
write(value, len);
|
|
111 |
}
|
|
112 |
}
|
|
113 |
|
|
114 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
115 |
template <typename T>
|
|
116 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::be_write(T value) {
|
|
117 |
u1* const pos = ensure_size(sizeof(T));
|
|
118 |
if (pos) {
|
|
119 |
this->set_current_pos(BE::be_write(&value, 1, pos));
|
|
120 |
}
|
|
121 |
}
|
|
122 |
|
|
123 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
124 |
template <typename T>
|
|
125 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::be_write(const T* value, size_t len) {
|
|
126 |
assert(value != NULL, "invariant");
|
|
127 |
assert(len > 0, "invariant");
|
|
128 |
u1* const pos = ensure_size(sizeof(T) * len);
|
|
129 |
if (pos) {
|
|
130 |
this->set_current_pos(BE::be_write(value, len, pos));
|
|
131 |
}
|
|
132 |
}
|
|
133 |
|
|
134 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
135 |
template <typename StorageType>
|
|
136 |
inline WriterHost<BE, IE, WriterPolicyImpl>::WriterHost(StorageType* storage, Thread* thread) :
|
|
137 |
WriterPolicyImpl(storage, thread),
|
|
138 |
_compressed_integers(compressed_integers()) {
|
|
139 |
}
|
|
140 |
|
|
141 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
142 |
template <typename StorageType>
|
|
143 |
inline WriterHost<BE, IE, WriterPolicyImpl>::WriterHost(StorageType* storage, size_t size) :
|
|
144 |
WriterPolicyImpl(storage, size),
|
|
145 |
_compressed_integers(compressed_integers()) {
|
|
146 |
}
|
|
147 |
|
|
148 |
template <typename BE, typename IE, typename WriterPolicyImpl >
|
|
149 |
inline WriterHost<BE, IE, WriterPolicyImpl>::WriterHost(Thread* thread) :
|
|
150 |
WriterPolicyImpl(thread),
|
|
151 |
_compressed_integers(compressed_integers()) {
|
|
152 |
}
|
|
153 |
|
|
154 |
// Extra size added as a safety cushion when dimensioning memory.
|
|
155 |
// With varint encoding, the worst case is
|
|
156 |
// associated with writing negative values.
|
|
157 |
// For example, writing a negative s1 (-1)
|
|
158 |
// will encode as 0xff 0x0f (2 bytes).
|
|
159 |
// In this example, the sizeof(T) == 1 and length == 1,
|
|
160 |
// but the implementation will need to dimension
|
|
161 |
// 2 bytes for the encoding.
|
|
162 |
// Hopefully, negative values should be relatively rare.
|
|
163 |
static const size_t size_safety_cushion = 1;
|
|
164 |
|
|
165 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
166 |
inline u1* WriterHost<BE, IE, WriterPolicyImpl>::ensure_size(size_t requested) {
|
|
167 |
if (!this->is_valid()) {
|
|
168 |
// cancelled
|
|
169 |
return NULL;
|
|
170 |
}
|
|
171 |
if (this->available_size() < requested + size_safety_cushion) {
|
|
172 |
if (!this->accommodate(this->used_size(), requested + size_safety_cushion)) {
|
|
173 |
this->cancel();
|
|
174 |
return NULL;
|
|
175 |
}
|
|
176 |
}
|
|
177 |
assert(requested + size_safety_cushion <= this->available_size(), "invariant");
|
|
178 |
return this->current_pos();
|
|
179 |
}
|
|
180 |
|
|
181 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
182 |
template <typename T>
|
|
183 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write(T value) {
|
|
184 |
write(&value, 1);
|
|
185 |
}
|
|
186 |
|
|
187 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
188 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write(bool value) {
|
|
189 |
be_write((u1)value);
|
|
190 |
}
|
|
191 |
|
|
192 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
193 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write(float value) {
|
|
194 |
be_write(*(u4*)&(value));
|
|
195 |
}
|
|
196 |
|
|
197 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
198 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write(double value) {
|
|
199 |
be_write(*(uintptr_t*)&(value));
|
|
200 |
}
|
|
201 |
|
|
202 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
203 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write(const char* value) {
|
|
204 |
// UTF-8, max_jint len
|
|
205 |
write_utf8(value);
|
|
206 |
}
|
|
207 |
|
|
208 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
209 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write(char* value) {
|
|
210 |
write(const_cast<const char*>(value));
|
|
211 |
}
|
|
212 |
|
|
213 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
214 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write(jstring string) {
|
|
215 |
if (string == NULL) {
|
|
216 |
write<u1>(NULL_STRING);
|
|
217 |
return;
|
|
218 |
}
|
|
219 |
const oop string_oop = JNIHandles::resolve_external_guard(string);
|
|
220 |
assert(string_oop != NULL, "invariant");
|
|
221 |
const size_t length = (size_t)java_lang_String::length(string_oop);
|
|
222 |
if (0 == length) {
|
|
223 |
write<u1>(EMPTY_STRING);
|
|
224 |
return;
|
|
225 |
}
|
|
226 |
const bool is_latin1_encoded = java_lang_String::is_latin1(string_oop);
|
|
227 |
const typeArrayOop value = java_lang_String::value(string_oop);
|
|
228 |
assert(value != NULL, "invariant");
|
|
229 |
if (is_latin1_encoded) {
|
|
230 |
write<u1>(LATIN1);
|
|
231 |
write<u4>((u4)length);
|
|
232 |
be_write(value->byte_at_addr(0), length);
|
|
233 |
} else {
|
|
234 |
write<u1>(UTF16);
|
|
235 |
write<u4>((u4)length);
|
|
236 |
write(value->char_at_addr(0), length);
|
|
237 |
}
|
|
238 |
}
|
|
239 |
|
|
240 |
template <typename Writer, typename T>
|
|
241 |
inline void tag_write(Writer* w, const T* t) {
|
|
242 |
assert(w != NULL, "invariant");
|
|
243 |
const traceid id = t == NULL ? 0 : JfrTraceId::use(t);
|
|
244 |
w->write(id);
|
|
245 |
}
|
|
246 |
|
|
247 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
248 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const ClassLoaderData* cld) {
|
|
249 |
tag_write(this, cld);
|
|
250 |
}
|
|
251 |
|
|
252 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
253 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const Klass* klass) {
|
|
254 |
tag_write(this, klass);
|
|
255 |
}
|
|
256 |
|
|
257 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
258 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const Method* method) {
|
|
259 |
tag_write(this, method);
|
|
260 |
}
|
|
261 |
|
|
262 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
263 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const ModuleEntry* module) {
|
|
264 |
tag_write(this, module);
|
|
265 |
}
|
|
266 |
|
|
267 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
268 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const PackageEntry* package) {
|
|
269 |
tag_write(this, package);
|
|
270 |
}
|
|
271 |
|
|
272 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
273 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const Symbol* symbol) {
|
|
274 |
ResourceMark rm;
|
|
275 |
write_utf8(symbol != NULL ? symbol->as_C_string() : NULL);
|
|
276 |
}
|
|
277 |
|
|
278 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
279 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const Ticks& time) {
|
|
280 |
write((uintptr_t)JfrTime::is_ft_enabled() ? time.ft_value() : time.value());
|
|
281 |
}
|
|
282 |
|
|
283 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
284 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const Tickspan& time) {
|
|
285 |
write((uintptr_t)JfrTime::is_ft_enabled() ? time.ft_value() : time.value());
|
|
286 |
}
|
|
287 |
|
|
288 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
289 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const JfrTicks& time) {
|
|
290 |
write((uintptr_t)time.value());
|
|
291 |
}
|
|
292 |
|
|
293 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
294 |
void WriterHost<BE, IE, WriterPolicyImpl>::write(const JfrTickspan& time) {
|
|
295 |
write((uintptr_t)time.value());
|
|
296 |
}
|
|
297 |
|
|
298 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
299 |
void WriterHost<BE, IE, WriterPolicyImpl>::bytes(const void* buf, size_t len) {
|
|
300 |
u1* const pos = this->ensure_size(len);
|
|
301 |
if (pos != NULL) {
|
|
302 |
WriterPolicyImpl::bytes(pos, buf, len); // WriterPolicyImpl responsible for position update
|
|
303 |
}
|
|
304 |
}
|
|
305 |
|
|
306 |
// UTF-8 for use with classfile/bytecodes
|
|
307 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
308 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write_utf8_u2_len(const char* value) {
|
|
309 |
u2 len = 0;
|
|
310 |
if (value != NULL) {
|
|
311 |
len = MIN2<u2>(max_jushort, (u2)strlen(value));
|
|
312 |
}
|
|
313 |
write(len);
|
|
314 |
if (len > 0) {
|
|
315 |
be_write(value, len);
|
|
316 |
}
|
|
317 |
}
|
|
318 |
|
|
319 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
320 |
inline intptr_t WriterHost<BE, IE, WriterPolicyImpl>::reserve(size_t size) {
|
|
321 |
if (ensure_size(size) != NULL) {
|
|
322 |
intptr_t reserved_offset = this->current_offset();
|
|
323 |
this->set_current_pos(size);
|
|
324 |
return reserved_offset;
|
|
325 |
}
|
|
326 |
this->cancel();
|
|
327 |
return 0;
|
|
328 |
}
|
|
329 |
|
|
330 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
331 |
template <typename T>
|
|
332 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write_padded_at_offset(T value, intptr_t offset) {
|
|
333 |
if (this->is_valid()) {
|
|
334 |
const intptr_t current = this->current_offset();
|
|
335 |
this->seek(offset);
|
|
336 |
write_padded(value);
|
|
337 |
this->seek(current); // restore
|
|
338 |
}
|
|
339 |
}
|
|
340 |
|
|
341 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
342 |
template <typename T>
|
|
343 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write_at_offset(T value, intptr_t offset) {
|
|
344 |
if (this->is_valid()) {
|
|
345 |
const intptr_t current = this->current_offset();
|
|
346 |
this->seek(offset);
|
|
347 |
write(value);
|
|
348 |
this->seek(current); // restore
|
|
349 |
}
|
|
350 |
}
|
|
351 |
|
|
352 |
template <typename BE, typename IE, typename WriterPolicyImpl>
|
|
353 |
template <typename T>
|
|
354 |
inline void WriterHost<BE, IE, WriterPolicyImpl>::write_be_at_offset(T value, intptr_t offset) {
|
|
355 |
if (this->is_valid()) {
|
|
356 |
const intptr_t current = this->current_offset();
|
|
357 |
this->seek(offset);
|
|
358 |
be_write(value);
|
|
359 |
this->seek(current); // restore
|
|
360 |
}
|
|
361 |
}
|
|
362 |
|
|
363 |
#endif // SHARE_VM_JFR_WRITERS_JFRWRITERHOST_INLINE_HPP
|
|
364 |
|