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c7e35b03 JR |
1 | /* |
2 | * Copyright (C) 2014 - Jonathan Rajotte <jonathan.r.julien@gmail.com> | |
3 | * - Olivier Cotte <olivier.cotte@polymtl.ca> | |
4 | * | |
5 | * This program 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 program 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 for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
16 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | */ | |
18 | ||
19 | #include <include/config.h> | |
20 | #include <common/config/config.h> | |
21 | ||
22 | #include "mi-lttng.h" | |
23 | ||
24 | /* Strings related to command */ | |
25 | const char * const mi_lttng_element_command = "command"; | |
26 | const char * const mi_lttng_element_command_version = "version"; | |
27 | const char * const mi_lttng_element_command_list = "list"; | |
28 | const char * const mi_lttng_element_command_name = "name"; | |
29 | const char * const mi_lttng_element_command_output = "output"; | |
30 | ||
31 | /* Strings related to command: version */ | |
32 | const char * const mi_lttng_element_version = "version"; | |
33 | const char * const mi_lttng_element_version_str = "string"; | |
34 | const char * const mi_lttng_element_version_web = "url"; | |
35 | const char * const mi_lttng_element_version_major = "major"; | |
36 | const char * const mi_lttng_element_version_minor = "minor"; | |
37 | const char * const mi_lttng_element_version_license = "license"; | |
38 | const char * const mi_lttng_element_version_patch_level = "patchLevel"; | |
39 | const char * const mi_lttng_element_version_description = "description"; | |
40 | ||
41 | LTTNG_HIDDEN | |
42 | struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type) | |
43 | { | |
44 | struct mi_writer *mi_writer; | |
45 | ||
46 | mi_writer = zmalloc(sizeof(struct mi_writer)); | |
47 | if (!mi_writer) { | |
48 | PERROR("zmalloc mi_writer_create"); | |
49 | goto end; | |
50 | } | |
51 | if (mi_output_type == LTTNG_MI_XML) { | |
52 | mi_writer->writer = config_writer_create(fd_output); | |
53 | if (!mi_writer->writer) { | |
54 | goto err_destroy; | |
55 | } | |
56 | mi_writer->type = LTTNG_MI_XML; | |
57 | } else { | |
58 | goto err_destroy; | |
59 | } | |
60 | ||
61 | end: | |
62 | return mi_writer; | |
63 | ||
64 | err_destroy: | |
65 | free(mi_writer); | |
66 | return NULL; | |
67 | } | |
68 | ||
69 | LTTNG_HIDDEN | |
70 | int mi_lttng_writer_destroy(struct mi_writer *writer) | |
71 | { | |
72 | int ret; | |
73 | ||
74 | if (!writer) { | |
75 | ret = -EINVAL; | |
76 | goto end; | |
77 | } | |
78 | ||
79 | ret = config_writer_destroy(writer->writer); | |
80 | if (ret < 0) { | |
81 | goto end; | |
82 | } | |
83 | ||
84 | free(writer); | |
85 | end: | |
86 | return ret; | |
87 | } | |
88 | ||
89 | LTTNG_HIDDEN | |
90 | int mi_lttng_writer_command_open(struct mi_writer *writer, const char *command) | |
91 | { | |
92 | int ret; | |
93 | ||
94 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_command); | |
95 | if (ret) { | |
96 | goto end; | |
97 | } | |
98 | ret = mi_lttng_writer_write_element_string(writer, | |
99 | mi_lttng_element_command_name, command); | |
100 | end: | |
101 | return ret; | |
102 | } | |
103 | ||
104 | LTTNG_HIDDEN | |
105 | int mi_lttng_writer_command_close(struct mi_writer *writer) | |
106 | { | |
107 | return mi_lttng_writer_close_element(writer); | |
108 | } | |
109 | ||
110 | LTTNG_HIDDEN | |
111 | int mi_lttng_writer_open_element(struct mi_writer *writer, | |
112 | const char *element_name) | |
113 | { | |
114 | return config_writer_open_element(writer->writer, element_name); | |
115 | } | |
116 | ||
117 | LTTNG_HIDDEN | |
118 | int mi_lttng_writer_close_element(struct mi_writer *writer) | |
119 | { | |
120 | return config_writer_close_element(writer->writer); | |
121 | } | |
122 | ||
123 | LTTNG_HIDDEN | |
124 | int mi_lttng_writer_write_element_unsigned_int(struct mi_writer *writer, | |
125 | const char *element_name, uint64_t value) | |
126 | { | |
127 | return config_writer_write_element_unsigned_int(writer->writer, | |
128 | element_name, value); | |
129 | } | |
130 | ||
131 | LTTNG_HIDDEN | |
132 | int mi_lttng_writer_write_element_signed_int(struct mi_writer *writer, | |
133 | const char *element_name, int64_t value) | |
134 | { | |
135 | return config_writer_write_element_signed_int(writer->writer, | |
136 | element_name, value); | |
137 | } | |
138 | ||
139 | LTTNG_HIDDEN | |
140 | int mi_lttng_writer_write_element_bool(struct mi_writer *writer, | |
141 | const char *element_name, int value) | |
142 | { | |
143 | return config_writer_write_element_bool(writer->writer, | |
144 | element_name, value); | |
145 | } | |
146 | ||
147 | LTTNG_HIDDEN | |
148 | int mi_lttng_writer_write_element_string(struct mi_writer *writer, | |
149 | const char *element_name, const char *value) | |
150 | { | |
151 | return config_writer_write_element_string(writer->writer, | |
152 | element_name, value); | |
153 | } | |
154 | ||
155 | LTTNG_HIDDEN | |
156 | int mi_lttng_version(struct mi_writer *writer, struct mi_lttng_version *version, | |
157 | const char *lttng_description, const char *lttng_license) | |
158 | { | |
159 | int ret; | |
160 | ||
161 | /* Open version */ | |
162 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_version); | |
163 | if (ret) { | |
164 | goto end; | |
165 | } | |
166 | ||
167 | /* Version string (contain info like rc etc.) */ | |
168 | ret = mi_lttng_writer_write_element_string(writer, | |
169 | mi_lttng_element_version_str, VERSION); | |
170 | if (ret) { | |
171 | goto end; | |
172 | } | |
173 | ||
174 | /* Major version number */ | |
175 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
176 | mi_lttng_element_version_major, version->version_major); | |
177 | if (ret) { | |
178 | goto end; | |
179 | } | |
180 | ||
181 | /* Minor version number */ | |
182 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
183 | mi_lttng_element_version_minor, version->version_minor); | |
184 | if (ret) { | |
185 | goto end; | |
186 | } | |
187 | ||
188 | /* Patch number */ | |
189 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
190 | mi_lttng_element_version_patch_level, version->version_patchlevel); | |
191 | if (ret) { | |
192 | goto end; | |
193 | } | |
194 | ||
195 | /* Name of the version */ | |
196 | ret = mi_lttng_writer_write_element_string(writer, | |
197 | config_element_name, version->version_name); | |
198 | if (ret) { | |
199 | goto end; | |
200 | } | |
201 | ||
202 | /* Description mostly related to beer... */ | |
203 | ret = mi_lttng_writer_write_element_string(writer, | |
204 | mi_lttng_element_version_description, lttng_description); | |
205 | if (ret) { | |
206 | goto end; | |
207 | } | |
208 | ||
209 | /* url */ | |
210 | ret = mi_lttng_writer_write_element_string(writer, | |
211 | mi_lttng_element_version_web, version->package_url); | |
212 | if (ret) { | |
213 | goto end; | |
214 | } | |
215 | ||
216 | /* License: free as in free beer...no...*speech* */ | |
217 | ret = mi_lttng_writer_write_element_string(writer, | |
218 | mi_lttng_element_version_license, lttng_license); | |
219 | if (ret) { | |
220 | goto end; | |
221 | } | |
222 | ||
223 | /* Close version element */ | |
224 | ret = mi_lttng_writer_close_element(writer); | |
225 | ||
226 | end: | |
227 | return ret; | |
228 | } | |
229 | ||
230 | LTTNG_HIDDEN | |
231 | int mi_lttng_session(struct mi_writer *writer, | |
232 | struct lttng_session *session, int is_open) | |
233 | { | |
234 | int ret; | |
235 | ||
236 | /* open sessions element */ | |
237 | ret = mi_lttng_writer_open_element(writer, | |
238 | config_element_session); | |
239 | if (ret) { | |
240 | goto end; | |
241 | } | |
242 | ||
243 | /* Name of the session */ | |
244 | ret = mi_lttng_writer_write_element_string(writer, | |
245 | config_element_name, session->name); | |
246 | if (ret) { | |
247 | goto end; | |
248 | } | |
249 | ||
250 | /* path */ | |
251 | ret = mi_lttng_writer_write_element_string(writer, | |
252 | config_element_path, session->path); | |
253 | if (ret) { | |
254 | goto end; | |
255 | } | |
256 | ||
257 | /* enabled ? */ | |
258 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
259 | config_element_enabled, session->enabled); | |
260 | if (ret) { | |
261 | goto end; | |
262 | } | |
263 | ||
264 | /* snapshot mode */ | |
265 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
266 | config_element_snapshot_mode, session->snapshot_mode); | |
267 | if (ret) { | |
268 | goto end; | |
269 | } | |
270 | ||
271 | /* live timer interval in usec */ | |
272 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
273 | config_element_live_timer_interval, | |
274 | session->live_timer_interval); | |
275 | if (ret) { | |
276 | goto end; | |
277 | } | |
278 | ||
279 | if (!is_open) { | |
280 | /* Closing session element */ | |
281 | ret = mi_lttng_writer_close_element(writer); | |
282 | } | |
283 | end: | |
284 | return ret; | |
285 | ||
286 | } |