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 #include "precompiled.hpp"
26 #include "classfile/javaClasses.hpp"
27 #include "runtime/arguments.hpp"
28 #include "runtime/commandLineFlagRangeList.hpp"
29 #include "runtime/java.hpp"
30 #include "runtime/jniHandles.hpp"
31 #include "runtime/sharedRuntime.hpp"
32 #include "services/writeableFlags.hpp"
33
34 #define TEMP_BUF_SIZE 256
35
36 static void print_flag_error_message_bounds(const char* name, char* buffer) {
37 CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
38 if (range != NULL) {
39 os::strlcat(buffer, "must have value in range ", TEMP_BUF_SIZE);
40
41 stringStream stream;
42 range->print(&stream);
43 char* range_string = stream.as_string();
44 char range_string_no_whitespaces[TEMP_BUF_SIZE];
45 int j = 0;
46 for (int i=0; i<TEMP_BUF_SIZE-1; i++) {
47 if (range_string[i] == '\0') {
48 break;
49 } else if (range_string[i] != ' ') {
50 range_string_no_whitespaces[j] = range_string[i];
51 j++;
52 }
53 }
54 range_string_no_whitespaces[j] = '\0';
55
56 os::strlcat(buffer, range_string_no_whitespaces, TEMP_BUF_SIZE);
57 }
58 }
59
60 PRAGMA_FORMAT_NONLITERAL_IGNORED_EXTERNAL
61 static void print_flag_error_message_if_needed(Flag::Error error, const char* name, FormatBuffer<80>& err_msg) {
62 if (error != Flag::SUCCESS) {
63 char buffer[TEMP_BUF_SIZE] = {'\0'};
64 if ((error != Flag::MISSING_NAME) && (name != NULL)) {
65 os::strlcat(buffer, name, TEMP_BUF_SIZE);
66 os::strlcat(buffer, " error: ", TEMP_BUF_SIZE);
67 } else {
68 os::strlcat(buffer, "Error: ", TEMP_BUF_SIZE);
69 }
70 switch (error) {
71 case Flag::MISSING_NAME:
72 os::strlcat(buffer, "flag name is missing.", TEMP_BUF_SIZE); break;
73 case Flag::MISSING_VALUE:
74 os::strlcat(buffer, "parsing the textual form of the value.", TEMP_BUF_SIZE); break;
75 case Flag::NON_WRITABLE:
76 os::strlcat(buffer, "flag is not writeable.", TEMP_BUF_SIZE); break;
77 case Flag::OUT_OF_BOUNDS:
78 print_flag_error_message_bounds(name, buffer); break;
79 case Flag::VIOLATES_CONSTRAINT:
80 os::strlcat(buffer, "value violates its flag's constraint.", TEMP_BUF_SIZE); break;
81 case Flag::INVALID_FLAG:
82 os::strlcat(buffer, "there is no flag with the given name.", TEMP_BUF_SIZE); break;
83 case Flag::ERR_OTHER:
84 os::strlcat(buffer, "other, unspecified error related to setting the flag.", TEMP_BUF_SIZE); break;
85 case Flag::SUCCESS:
86 break;
87 }
88 buffer[79] = '\0';
89 PRAGMA_DIAG_PUSH
90 PRAGMA_FORMAT_NONLITERAL_IGNORED_INTERNAL
91 err_msg.print(buffer);
92 PRAGMA_DIAG_POP
93 }
94 }
95
96 // set a boolean global flag
97 Flag::Error WriteableFlags::set_bool_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
98 int value = true;
99
100 if (sscanf(arg, "%d", &value)) {
101 return set_bool_flag(name, value != 0, origin, err_msg);
102 }
103 err_msg.print("flag value must be a boolean (1 or 0)");
104 return Flag::WRONG_FORMAT;
105 }
106
107 Flag::Error WriteableFlags::set_bool_flag(const char* name, bool value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
108 Flag::Error err = CommandLineFlags::boolAtPut((char*)name, &value, origin);
109 print_flag_error_message_if_needed(err, name, err_msg);
110 return err;
111 }
112
113 // set a int global flag
114 Flag::Error WriteableFlags::set_int_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
115 int value;
116
117 if (sscanf(arg, "%d", &value)) {
118 return set_int_flag(name, value, origin, err_msg);
119 }
120 err_msg.print("flag value must be an integer");
121 return Flag::WRONG_FORMAT;
122 }
123
124 Flag::Error WriteableFlags::set_int_flag(const char* name, int value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
125 Flag::Error err = CommandLineFlags::intAtPut(name, &value, origin);
126 print_flag_error_message_if_needed(err, name, err_msg);
127 return err;
128 }
139 }
140
141 Flag::Error WriteableFlags::set_uint_flag(const char* name, uint value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
142 Flag::Error err = CommandLineFlags::uintAtPut(name, &value, origin);
143 print_flag_error_message_if_needed(err, name, err_msg);
144 return err;
145 }
146
147 // set a intx global flag
148 Flag::Error WriteableFlags::set_intx_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
149 intx value;
150
151 if (sscanf(arg, INTX_FORMAT, &value)) {
152 return set_intx_flag(name, value, origin, err_msg);
153 }
154 err_msg.print("flag value must be an integer");
155 return Flag::WRONG_FORMAT;
156 }
157
158 Flag::Error WriteableFlags::set_intx_flag(const char* name, intx value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
159 Flag::Error err = CommandLineFlags::intxAtPut((char*)name, &value, origin);
160 print_flag_error_message_if_needed(err, name, err_msg);
161 return err;
162 }
163
164 // set a uintx global flag
165 Flag::Error WriteableFlags::set_uintx_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
166 uintx value;
167
168 if (sscanf(arg, UINTX_FORMAT, &value)) {
169 return set_uintx_flag(name, value, origin, err_msg);
170 }
171 err_msg.print("flag value must be an unsigned integer");
172 return Flag::WRONG_FORMAT;
173 }
174
175 Flag::Error WriteableFlags::set_uintx_flag(const char* name, uintx value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
176 Flag::Error err = CommandLineFlags::uintxAtPut((char*)name, &value, origin);
177 print_flag_error_message_if_needed(err, name, err_msg);
178 return err;
179 }
180
181 // set a uint64_t global flag
182 Flag::Error WriteableFlags::set_uint64_t_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
183 uint64_t value;
184
185 if (sscanf(arg, UINT64_FORMAT, &value)) {
186 return set_uint64_t_flag(name, value, origin, err_msg);
187 }
188 err_msg.print("flag value must be an unsigned 64-bit integer");
189 return Flag::WRONG_FORMAT;
190 }
191
192 Flag::Error WriteableFlags::set_uint64_t_flag(const char* name, uint64_t value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
193 Flag::Error err = CommandLineFlags::uint64_tAtPut((char*)name, &value, origin);
194 print_flag_error_message_if_needed(err, name, err_msg);
195 return err;
196 }
197
198 // set a size_t global flag
199 Flag::Error WriteableFlags::set_size_t_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
200 size_t value;
201
202 if (sscanf(arg, SIZE_FORMAT, &value)) {
203 return set_size_t_flag(name, value, origin, err_msg);
204 }
205 err_msg.print("flag value must be an unsigned integer");
206 return Flag::WRONG_FORMAT;
207 }
208
209 Flag::Error WriteableFlags::set_size_t_flag(const char* name, size_t value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
210 Flag::Error err = CommandLineFlags::size_tAtPut((char*)name, &value, origin);
211 print_flag_error_message_if_needed(err, name, err_msg);
212 return err;
213 }
214
215 // set a string global flag using value from AttachOperation
216 Flag::Error WriteableFlags::set_ccstr_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
217 Flag::Error err = CommandLineFlags::ccstrAtPut((char*)name, &value, origin);
218 print_flag_error_message_if_needed(err, name, err_msg);
219 return err;
220 }
221
222 /* sets a writeable flag to the provided value
223 *
224 * - return status is one of the WriteableFlags::err enum values
225 * - an eventual error message will be generated to the provided err_msg buffer
226 */
227 Flag::Error WriteableFlags::set_flag(const char* flag_name, const char* flag_value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
228 return set_flag(flag_name, &flag_value, set_flag_from_char, origin, err_msg);
229 }
230
|
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 #include "precompiled.hpp"
26 #include "classfile/javaClasses.hpp"
27 #include "runtime/arguments.hpp"
28 #include "runtime/commandLineFlagRangeList.hpp"
29 #include "runtime/java.hpp"
30 #include "runtime/jniHandles.hpp"
31 #include "services/writeableFlags.hpp"
32
33 #define TEMP_BUF_SIZE 80
34
35 static void buffer_concat(char* buffer, const char* src) {
36 strncat(buffer, src, TEMP_BUF_SIZE - 1 - strlen(buffer));
37 }
38
39 static void print_flag_error_message_bounds(const char* name, char* buffer) {
40 CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
41 if (range != NULL) {
42 buffer_concat(buffer, "must have value in range ");
43
44 stringStream stream;
45 range->print(&stream);
46 const char* range_string = stream.as_string();
47 size_t j = strlen(buffer);
48 for (size_t i=0; j<TEMP_BUF_SIZE-1; i++) {
49 if (range_string[i] == '\0') {
50 break;
51 } else if (range_string[i] != ' ') {
52 buffer[j] = range_string[i];
53 j++;
54 }
55 }
56 buffer[j] = '\0';
57 }
58 }
59
60 PRAGMA_FORMAT_NONLITERAL_IGNORED_EXTERNAL
61 static void print_flag_error_message_if_needed(Flag::Error error, const char* name, FormatBuffer<80>& err_msg) {
62 if (error == Flag::SUCCESS) {
63 return;
64 }
65
66 char buffer[TEMP_BUF_SIZE] = {'\0'};
67 if ((error != Flag::MISSING_NAME) && (name != NULL)) {
68 buffer_concat(buffer, name);
69 buffer_concat(buffer, " error: ");
70 } else {
71 buffer_concat(buffer, "Error: ");
72 }
73 switch (error) {
74 case Flag::MISSING_NAME:
75 buffer_concat(buffer, "flag name is missing."); break;
76 case Flag::MISSING_VALUE:
77 buffer_concat(buffer, "parsing the textual form of the value."); break;
78 case Flag::NON_WRITABLE:
79 buffer_concat(buffer, "flag is not writeable."); break;
80 case Flag::OUT_OF_BOUNDS:
81 print_flag_error_message_bounds(name, buffer); break;
82 case Flag::VIOLATES_CONSTRAINT:
83 buffer_concat(buffer, "value violates its flag's constraint."); break;
84 case Flag::INVALID_FLAG:
85 buffer_concat(buffer, "there is no flag with the given name."); break;
86 case Flag::ERR_OTHER:
87 buffer_concat(buffer, "other, unspecified error related to setting the flag."); break;
88 case Flag::SUCCESS:
89 break;
90 }
91
92 PRAGMA_DIAG_PUSH
93 PRAGMA_FORMAT_NONLITERAL_IGNORED_INTERNAL
94 err_msg.print(buffer);
95 PRAGMA_DIAG_POP
96 }
97
98 // set a boolean global flag
99 Flag::Error WriteableFlags::set_bool_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
100 int value = true;
101
102 if (sscanf(arg, "%d", &value)) {
103 return set_bool_flag(name, value != 0, origin, err_msg);
104 }
105 err_msg.print("flag value must be a boolean (1 or 0)");
106 return Flag::WRONG_FORMAT;
107 }
108
109 Flag::Error WriteableFlags::set_bool_flag(const char* name, bool value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
110 Flag::Error err = CommandLineFlags::boolAtPut(name, &value, origin);
111 print_flag_error_message_if_needed(err, name, err_msg);
112 return err;
113 }
114
115 // set a int global flag
116 Flag::Error WriteableFlags::set_int_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
117 int value;
118
119 if (sscanf(arg, "%d", &value)) {
120 return set_int_flag(name, value, origin, err_msg);
121 }
122 err_msg.print("flag value must be an integer");
123 return Flag::WRONG_FORMAT;
124 }
125
126 Flag::Error WriteableFlags::set_int_flag(const char* name, int value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
127 Flag::Error err = CommandLineFlags::intAtPut(name, &value, origin);
128 print_flag_error_message_if_needed(err, name, err_msg);
129 return err;
130 }
141 }
142
143 Flag::Error WriteableFlags::set_uint_flag(const char* name, uint value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
144 Flag::Error err = CommandLineFlags::uintAtPut(name, &value, origin);
145 print_flag_error_message_if_needed(err, name, err_msg);
146 return err;
147 }
148
149 // set a intx global flag
150 Flag::Error WriteableFlags::set_intx_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
151 intx value;
152
153 if (sscanf(arg, INTX_FORMAT, &value)) {
154 return set_intx_flag(name, value, origin, err_msg);
155 }
156 err_msg.print("flag value must be an integer");
157 return Flag::WRONG_FORMAT;
158 }
159
160 Flag::Error WriteableFlags::set_intx_flag(const char* name, intx value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
161 Flag::Error err = CommandLineFlags::intxAtPut(name, &value, origin);
162 print_flag_error_message_if_needed(err, name, err_msg);
163 return err;
164 }
165
166 // set a uintx global flag
167 Flag::Error WriteableFlags::set_uintx_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
168 uintx value;
169
170 if (sscanf(arg, UINTX_FORMAT, &value)) {
171 return set_uintx_flag(name, value, origin, err_msg);
172 }
173 err_msg.print("flag value must be an unsigned integer");
174 return Flag::WRONG_FORMAT;
175 }
176
177 Flag::Error WriteableFlags::set_uintx_flag(const char* name, uintx value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
178 Flag::Error err = CommandLineFlags::uintxAtPut(name, &value, origin);
179 print_flag_error_message_if_needed(err, name, err_msg);
180 return err;
181 }
182
183 // set a uint64_t global flag
184 Flag::Error WriteableFlags::set_uint64_t_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
185 uint64_t value;
186
187 if (sscanf(arg, UINT64_FORMAT, &value)) {
188 return set_uint64_t_flag(name, value, origin, err_msg);
189 }
190 err_msg.print("flag value must be an unsigned 64-bit integer");
191 return Flag::WRONG_FORMAT;
192 }
193
194 Flag::Error WriteableFlags::set_uint64_t_flag(const char* name, uint64_t value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
195 Flag::Error err = CommandLineFlags::uint64_tAtPut(name, &value, origin);
196 print_flag_error_message_if_needed(err, name, err_msg);
197 return err;
198 }
199
200 // set a size_t global flag
201 Flag::Error WriteableFlags::set_size_t_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
202 size_t value;
203
204 if (sscanf(arg, SIZE_FORMAT, &value)) {
205 return set_size_t_flag(name, value, origin, err_msg);
206 }
207 err_msg.print("flag value must be an unsigned integer");
208 return Flag::WRONG_FORMAT;
209 }
210
211 Flag::Error WriteableFlags::set_size_t_flag(const char* name, size_t value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
212 Flag::Error err = CommandLineFlags::size_tAtPut(name, &value, origin);
213 print_flag_error_message_if_needed(err, name, err_msg);
214 return err;
215 }
216
217 // set a string global flag using value from AttachOperation
218 Flag::Error WriteableFlags::set_ccstr_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
219 Flag::Error err = CommandLineFlags::ccstrAtPut((char*)name, &value, origin);
220 print_flag_error_message_if_needed(err, name, err_msg);
221 return err;
222 }
223
224 /* sets a writeable flag to the provided value
225 *
226 * - return status is one of the WriteableFlags::err enum values
227 * - an eventual error message will be generated to the provided err_msg buffer
228 */
229 Flag::Error WriteableFlags::set_flag(const char* flag_name, const char* flag_value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
230 return set_flag(flag_name, &flag_value, set_flag_from_char, origin, err_msg);
231 }
232
|