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comparison src/share/vm/services/diagnosticArgument.cpp @ 4932:f1cb6f9cfe21

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7145243: Need additional specializations for argument parsing framework Reviewed-by: acorn, fparain Contributed-by: nils.loodin@oracle.com
author fparain
date Wed, 15 Feb 2012 12:17:30 -0800
parents 520830f632e7
children 51612f0c0a79
comparison
equal deleted inserted replaced
4931:64fc5ac1b770 4932:f1cb6f9cfe21
26 #include "memory/allocation.inline.hpp" 26 #include "memory/allocation.inline.hpp"
27 #include "runtime/thread.hpp" 27 #include "runtime/thread.hpp"
28 #include "services/diagnosticArgument.hpp" 28 #include "services/diagnosticArgument.hpp"
29 29
30 void GenDCmdArgument::read_value(const char* str, size_t len, TRAPS) { 30 void GenDCmdArgument::read_value(const char* str, size_t len, TRAPS) {
31 if (is_set()) { 31 /* NOTE:Some argument types doesn't require a value,
32 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 32 * for instance boolean arguments: "enableFeatureX". is
33 "Duplicates in diagnostic command arguments"); 33 * equivalent to "enableFeatureX=true". In these cases,
34 * str will be null. This is perfectly valid.
35 * All argument types must perform null checks on str.
36 */
37
38 if (is_set() && !allow_multiple()) {
39 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
40 "Duplicates in diagnostic command arguments\n");
34 } 41 }
35 parse_value(str, len, CHECK); 42 parse_value(str, len, CHECK);
36 set_is_set(true); 43 set_is_set(true);
37 } 44 }
38 45
39 template <> void DCmdArgument<jlong>::parse_value(const char* str, 46 template <> void DCmdArgument<jlong>::parse_value(const char* str,
40 size_t len, TRAPS) { 47 size_t len, TRAPS) {
41 if (sscanf(str, INT64_FORMAT, &_value) != 1) { 48 if (str == NULL || sscanf(str, INT64_FORMAT, &_value) != 1) {
42 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 49 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
43 "Integer parsing error in diagnostic command arguments"); 50 "Integer parsing error in diagnostic command arguments\n");
44 } 51 }
45 } 52 }
46 53
47 template <> void DCmdArgument<jlong>::init_value(TRAPS) { 54 template <> void DCmdArgument<jlong>::init_value(TRAPS) {
48 if (has_default()) { 55 if (has_default()) {
87 94
88 template <> void DCmdArgument<bool>::destroy_value() { } 95 template <> void DCmdArgument<bool>::destroy_value() { }
89 96
90 template <> void DCmdArgument<char*>::parse_value(const char* str, 97 template <> void DCmdArgument<char*>::parse_value(const char* str,
91 size_t len, TRAPS) { 98 size_t len, TRAPS) {
92 _value = NEW_C_HEAP_ARRAY(char, len+1); 99 if (str == NULL) {
93 strncpy(_value, str, len); 100 _value = NULL;
94 _value[len] = 0; 101 } else {
102 _value = NEW_C_HEAP_ARRAY(char, len+1);
103 strncpy(_value, str, len);
104 _value[len] = 0;
105 }
95 } 106 }
96 107
97 template <> void DCmdArgument<char*>::init_value(TRAPS) { 108 template <> void DCmdArgument<char*>::init_value(TRAPS) {
98 if (has_default()) { 109 if (has_default() && _default_string != NULL) {
99 this->parse_value(_default_string, strlen(_default_string), THREAD); 110 this->parse_value(_default_string, strlen(_default_string), THREAD);
100 if (HAS_PENDING_EXCEPTION) { 111 if (HAS_PENDING_EXCEPTION) {
101 fatal("Default string must be parsable"); 112 fatal("Default string must be parsable");
102 } 113 }
103 } else { 114 } else {
104 set_value(NULL); 115 set_value(NULL);
105 } 116 }
106 } 117 }
109 if (_value != NULL) { 120 if (_value != NULL) {
110 FREE_C_HEAP_ARRAY(char, _value); 121 FREE_C_HEAP_ARRAY(char, _value);
111 set_value(NULL); 122 set_value(NULL);
112 } 123 }
113 } 124 }
125
126 template <> void DCmdArgument<NanoTimeArgument>::parse_value(const char* str,
127 size_t len, TRAPS) {
128 if (str == NULL) {
129 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
130 "Integer parsing error nanotime value: syntax error");
131 }
132
133 int argc = sscanf(str, INT64_FORMAT , &_value._time);
134 if (argc != 1) {
135 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
136 "Integer parsing error nanotime value: syntax error");
137 }
138 size_t idx = 0;
139 while(idx < len && isdigit(str[idx])) {
140 idx++;
141 }
142 if (idx == len) {
143 // only accept missing unit if the value is 0
144 if (_value._time != 0) {
145 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
146 "Integer parsing error nanotime value: unit required");
147 } else {
148 _value._nanotime = 0;
149 strcpy(_value._unit, "ns");
150 return;
151 }
152 } else if(len - idx > 2) {
153 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
154 "Integer parsing error nanotime value: illegal unit");
155 } else {
156 strncpy(_value._unit, &str[idx], len - idx);
157 /*Write an extra null termination. This is safe because _value._unit
158 * is declared as char[3], and length is checked to be not larger than
159 * two above. Also, this is necessary, since length might be 1, and the
160 * default value already in the string is ns, which is two chars.
161 */
162 _value._unit[len-idx] = '\0';
163 }
164
165 if (strcmp(_value._unit, "ns") == 0) {
166 _value._nanotime = _value._time;
167 } else if (strcmp(_value._unit, "us") == 0) {
168 _value._nanotime = _value._time * 1000;
169 } else if (strcmp(_value._unit, "ms") == 0) {
170 _value._nanotime = _value._time * 1000 * 1000;
171 } else if (strcmp(_value._unit, "s") == 0) {
172 _value._nanotime = _value._time * 1000 * 1000 * 1000;
173 } else if (strcmp(_value._unit, "m") == 0) {
174 _value._nanotime = _value._time * 60 * 1000 * 1000 * 1000;
175 } else if (strcmp(_value._unit, "h") == 0) {
176 _value._nanotime = _value._time * 60 * 60 * 1000 * 1000 * 1000;
177 } else if (strcmp(_value._unit, "d") == 0) {
178 _value._nanotime = _value._time * 24 * 60 * 60 * 1000 * 1000 * 1000;
179 } else {
180 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
181 "Integer parsing error nanotime value: illegal unit");
182 }
183 }
184
185 template <> void DCmdArgument<NanoTimeArgument>::init_value(TRAPS) {
186 if (has_default()) {
187 this->parse_value(_default_string, strlen(_default_string), THREAD);
188 if (HAS_PENDING_EXCEPTION) {
189 fatal("Default string must be parsable");
190 }
191 } else {
192 _value._time = 0;
193 _value._nanotime = 0;
194 strcmp(_value._unit, "ns");
195 }
196 }
197
198 template <> void DCmdArgument<NanoTimeArgument>::destroy_value() { }
199
200 // WARNING StringArrayArgument can only be used as an option, it cannot be
201 // used as an argument with the DCmdParser
202
203 template <> void DCmdArgument<StringArrayArgument*>::parse_value(const char* str,
204 size_t len, TRAPS) {
205 _value->add(str,len);
206 }
207
208 template <> void DCmdArgument<StringArrayArgument*>::init_value(TRAPS) {
209 _value = new StringArrayArgument();
210 _allow_multiple = true;
211 if (has_default()) {
212 fatal("StringArrayArgument cannot have default value");
213 }
214 }
215
216 template <> void DCmdArgument<StringArrayArgument*>::destroy_value() {
217 if (_value != NULL) {
218 delete _value;
219 set_value(NULL);
220 }
221 }
222
223 template <> void DCmdArgument<MemorySizeArgument>::parse_value(const char* str,
224 size_t len, TRAPS) {
225 if (str == NULL) {
226 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
227 "Integer parsing error nanotime value: syntax error");
228 }
229
230 if (*str == '-') {
231 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
232 "Parsing error memory size value: negative values not allowed");
233 }
234 int res = sscanf(str, UINT64_FORMAT "%c", &_value._val, &_value._multiplier);
235 if (res == 2) {
236 switch (_value._multiplier) {
237 case 'k': case 'K':
238 _value._size = _value._val * 1024;
239 break;
240 case 'm': case 'M':
241 _value._size = _value._val * 1024 * 1024;
242 break;
243 case 'g': case 'G':
244 _value._size = _value._val * 1024 * 1024 * 1024;
245 break;
246 default:
247 _value._size = _value._val;
248 _value._multiplier = ' ';
249 //default case should be to break with no error, since user
250 //can write size in bytes, or might have a delimiter and next arg
251 break;
252 }
253 } else if (res == 1) {
254 _value._size = _value._val;
255 } else {
256 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
257 "Parsing error memory size value: invalid value");
258 }
259 }
260
261 template <> void DCmdArgument<MemorySizeArgument>::init_value(TRAPS) {
262 if (has_default()) {
263 this->parse_value(_default_string, strlen(_default_string), THREAD);
264 if (HAS_PENDING_EXCEPTION) {
265 fatal("Default string must be parsable");
266 }
267 } else {
268 _value._size = 0;
269 _value._val = 0;
270 _value._multiplier = ' ';
271 }
272 }
273
274 template <> void DCmdArgument<MemorySizeArgument>::destroy_value() { }