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1fc22eb4 JD |
1 | /* |
2 | * Copyright (C) 2011 Mathieu Bain <mathieu.bain@polymtl.ca> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
71bd7ce1 AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
1fc22eb4 JD |
16 | */ |
17 | ||
b093de8a MB |
18 | #include <stdlib.h> |
19 | #include <unistd.h> | |
20 | #include <sys/types.h> | |
21 | #include <sys/stat.h> | |
22 | #include <string.h> | |
1fc22eb4 JD |
23 | #include <babeltrace/babeltrace.h> |
24 | ||
25 | #include "lttngtoptypes.h" | |
26 | #include "common.h" | |
27 | #include "iostreamtop.h" | |
28 | ||
b093de8a MB |
29 | void add_file(struct processtop *proc, struct files *file, int fd) |
30 | { | |
31 | if (proc->process_files_table->len <= fd) { | |
32 | g_ptr_array_set_size(proc->process_files_table, fd); | |
33 | g_ptr_array_add(proc->process_files_table, file); | |
34 | } else { | |
35 | g_ptr_array_index(proc->process_files_table, fd) = file; | |
36 | } | |
37 | file->fd = fd; | |
38 | } | |
39 | ||
40 | ||
41 | void insert_file(struct processtop *proc, int fd) | |
42 | { | |
43 | struct files *tmp; | |
44 | ||
45 | if (fd >= proc->process_files_table->len) { | |
46 | tmp = g_new0(struct files, 1); | |
47 | tmp->name = "Unknown"; | |
48 | add_file(proc, tmp, fd); | |
49 | } else { | |
50 | ||
51 | tmp = g_ptr_array_index(proc->process_files_table, fd); | |
52 | if (tmp == NULL) { | |
53 | tmp = g_new0(struct files, 1); | |
54 | tmp->name = "Unknown"; | |
55 | tmp->read = 0; | |
56 | tmp->write = 0; | |
57 | tmp->fd = fd; | |
58 | add_file(proc, tmp, fd); | |
59 | } | |
60 | } | |
61 | } | |
62 | ||
63 | void close_file(struct processtop *proc, int fd) | |
64 | { | |
65 | int len; | |
66 | ||
67 | len = proc->process_files_table->len; | |
68 | ||
69 | /* | |
70 | * It is possible that a file was open before taking the trace | |
71 | * and its fd could be greater than all of the others fd | |
72 | * used by the process | |
73 | */ | |
74 | if (fd < len) { | |
75 | g_ptr_array_remove_index_fast(proc->process_files_table, fd); | |
76 | g_ptr_array_set_size(proc->process_files_table, len + 1); | |
77 | } | |
78 | } | |
79 | ||
80 | struct files *get_file(struct processtop *proc, int fd) | |
81 | { | |
82 | struct files *tmp; | |
83 | tmp = g_ptr_array_index(proc->process_files_table, fd); | |
84 | return tmp; | |
85 | } | |
86 | ||
87 | void show_table(GPtrArray *tab) | |
88 | { | |
89 | int i; | |
90 | struct files *file; | |
91 | ||
92 | for (i = 0 ; i < tab->len; i++) { | |
93 | file = g_ptr_array_index(tab, i); | |
94 | if (file == NULL) | |
95 | fprintf(stderr, "NULL, "); | |
96 | else | |
97 | fprintf(stderr, "%s, ", file->name); | |
98 | } | |
99 | fprintf(stderr, "]\n\n"); | |
100 | } | |
1fc22eb4 JD |
101 | |
102 | int update_iostream_ret(struct lttngtop *ctx, int tid, char *comm, | |
d67167cd | 103 | unsigned long timestamp, uint64_t cpu_id, int ret) |
1fc22eb4 JD |
104 | { |
105 | struct processtop *tmp; | |
b093de8a | 106 | struct files *tmpfile; |
1fc22eb4 JD |
107 | int err = 0; |
108 | ||
109 | tmp = get_proc(ctx, tid, comm, timestamp); | |
b093de8a MB |
110 | |
111 | if (tmp->syscall_info != NULL) { | |
112 | if (tmp->syscall_info->type == __NR_read | |
113 | && ret > 0) { | |
114 | tmp->totalfileread += ret; | |
115 | tmp->fileread += ret; | |
116 | tmpfile = get_file(tmp, tmp->syscall_info->fd); | |
117 | tmpfile->read += ret; | |
118 | } else if (tmp->syscall_info->type == __NR_write | |
119 | && ret > 0) { | |
120 | tmp->totalfilewrite += ret; | |
121 | tmp->filewrite += ret; | |
122 | tmpfile = get_file(tmp, tmp->syscall_info->fd); | |
123 | tmpfile->write += ret; | |
124 | } else if (tmp->syscall_info->type == __NR_open | |
125 | && ret > 0) { | |
126 | add_file(tmp, tmp->files_history->file, ret); | |
127 | } else { | |
1fc22eb4 JD |
128 | err = -1; |
129 | } | |
b093de8a MB |
130 | g_free(tmp->syscall_info); |
131 | tmp->syscall_info = NULL; | |
132 | } | |
1fc22eb4 JD |
133 | return err; |
134 | } | |
135 | ||
d67167cd | 136 | struct syscalls *create_syscall_info(unsigned int type, uint64_t cpu_id, |
b093de8a MB |
137 | unsigned int tid, int fd) |
138 | { | |
139 | struct syscalls *syscall_info; | |
140 | ||
141 | syscall_info = g_new0(struct syscalls, 1); | |
142 | syscall_info->type = type; | |
143 | syscall_info->cpu_id = cpu_id; | |
144 | syscall_info->tid = tid; | |
145 | syscall_info->fd = fd; | |
146 | ||
147 | return syscall_info; | |
148 | } | |
149 | ||
150 | struct file_history *create_file(struct file_history *history, char *file_name) | |
151 | { | |
152 | struct files *new_file; | |
153 | struct file_history *new_history; | |
154 | ||
155 | new_file = g_new0(struct files, 1); | |
156 | new_history = g_new0(struct file_history, 1); | |
157 | new_file->name = strdup(file_name); | |
158 | new_file->read = 0; | |
159 | new_file->write = 0; | |
160 | new_history->file = new_file; | |
161 | new_history->next = history; | |
162 | ||
163 | return new_history; | |
164 | } | |
165 | ||
1fc22eb4 JD |
166 | enum bt_cb_ret handle_exit_syscall(struct bt_ctf_event *call_data, |
167 | void *private_data) | |
168 | { | |
169 | struct definition *scope; | |
170 | unsigned long timestamp; | |
171 | char *comm; | |
172 | uint64_t ret, tid; | |
d67167cd | 173 | uint64_t cpu_id; |
1fc22eb4 JD |
174 | |
175 | timestamp = bt_ctf_get_timestamp(call_data); | |
176 | if (timestamp == -1ULL) | |
177 | goto error; | |
178 | ||
1dec520a JD |
179 | comm = get_context_comm(call_data); |
180 | tid = get_context_tid(call_data); | |
1fc22eb4 JD |
181 | |
182 | scope = bt_ctf_get_top_level_scope(call_data, | |
183 | BT_EVENT_FIELDS); | |
184 | ret = bt_ctf_get_int64(bt_ctf_get_field(call_data, | |
185 | scope, "_ret")); | |
186 | if (bt_ctf_field_get_error()) { | |
187 | fprintf(stderr, "Missing ret context info\n"); | |
188 | goto error; | |
189 | } | |
190 | ||
d67167cd | 191 | cpu_id = get_cpu_id(call_data); |
1fc22eb4 JD |
192 | |
193 | /* | |
b093de8a MB |
194 | * if we encounter an exit_syscall and |
195 | * it is not for a syscall read or write | |
1fc22eb4 JD |
196 | * we just abort the execution of this callback |
197 | */ | |
198 | if ((update_iostream_ret(<tngtop, tid, comm, timestamp, cpu_id, ret)) < 0) | |
199 | return BT_CB_ERROR_CONTINUE; | |
200 | ||
201 | return BT_CB_OK; | |
202 | ||
203 | error: | |
204 | return BT_CB_ERROR_STOP; | |
205 | } | |
206 | ||
207 | ||
208 | enum bt_cb_ret handle_sys_write(struct bt_ctf_event *call_data, | |
209 | void *private_data) | |
210 | { | |
211 | struct definition *scope; | |
212 | struct processtop *tmp; | |
1fc22eb4 JD |
213 | unsigned long timestamp; |
214 | uint64_t cpu_id; | |
215 | char *comm; | |
216 | int64_t tid; | |
b093de8a | 217 | int fd; |
1fc22eb4 JD |
218 | |
219 | timestamp = bt_ctf_get_timestamp(call_data); | |
220 | if (timestamp == -1ULL) | |
221 | goto error; | |
222 | ||
1dec520a JD |
223 | comm = get_context_comm(call_data); |
224 | tid = get_context_tid(call_data); | |
d67167cd | 225 | cpu_id = get_cpu_id(call_data); |
1fc22eb4 | 226 | |
b093de8a MB |
227 | scope = bt_ctf_get_top_level_scope(call_data, |
228 | BT_EVENT_FIELDS); | |
229 | fd = bt_ctf_get_uint64(bt_ctf_get_field(call_data, | |
230 | scope, "_fd")); | |
231 | if (bt_ctf_field_get_error()) { | |
232 | fprintf(stderr, "Missing fd context info\n"); | |
233 | goto error; | |
234 | } | |
235 | ||
1fc22eb4 | 236 | tmp = get_proc(<tngtop, tid, comm, timestamp); |
b093de8a MB |
237 | tmp->syscall_info = create_syscall_info(__NR_write, cpu_id, tid, fd); |
238 | ||
239 | insert_file(tmp, fd); | |
1fc22eb4 JD |
240 | |
241 | return BT_CB_OK; | |
242 | ||
243 | error: | |
244 | return BT_CB_ERROR_STOP; | |
245 | } | |
246 | ||
247 | enum bt_cb_ret handle_sys_read(struct bt_ctf_event *call_data, | |
248 | void *private_data) | |
249 | { | |
250 | struct processtop *tmp; | |
251 | struct definition *scope; | |
1fc22eb4 JD |
252 | unsigned long timestamp; |
253 | uint64_t cpu_id; | |
254 | char *comm; | |
255 | int64_t tid; | |
b093de8a | 256 | int fd; |
1fc22eb4 JD |
257 | |
258 | timestamp = bt_ctf_get_timestamp(call_data); | |
259 | if (timestamp == -1ULL) | |
260 | goto error; | |
261 | ||
1dec520a JD |
262 | comm = get_context_comm(call_data); |
263 | tid = get_context_tid(call_data); | |
d67167cd | 264 | cpu_id = get_cpu_id(call_data); |
1fc22eb4 | 265 | |
b093de8a MB |
266 | scope = bt_ctf_get_top_level_scope(call_data, |
267 | BT_EVENT_FIELDS); | |
268 | fd = bt_ctf_get_uint64(bt_ctf_get_field(call_data, | |
269 | scope, "_fd")); | |
270 | if (bt_ctf_field_get_error()) { | |
271 | fprintf(stderr, "Missing fd context info\n"); | |
272 | goto error; | |
273 | } | |
274 | ||
275 | tmp = get_proc(<tngtop, tid, comm, timestamp); | |
276 | tmp->syscall_info = create_syscall_info(__NR_read, cpu_id, tid, fd); | |
277 | ||
278 | insert_file(tmp, fd); | |
279 | ||
280 | return BT_CB_OK; | |
281 | ||
282 | error: | |
283 | return BT_CB_ERROR_STOP; | |
284 | } | |
285 | ||
286 | ||
287 | enum bt_cb_ret handle_sys_open(struct bt_ctf_event *call_data, | |
288 | void *private_data) | |
289 | { | |
290 | ||
291 | struct processtop *tmp; | |
292 | struct definition *scope; | |
293 | unsigned long timestamp; | |
294 | uint64_t cpu_id; | |
295 | char *comm; | |
296 | int64_t tid; | |
297 | char *file; | |
298 | ||
299 | timestamp = bt_ctf_get_timestamp(call_data); | |
300 | if (timestamp == -1ULL) | |
301 | goto error; | |
302 | ||
1dec520a JD |
303 | comm = get_context_comm(call_data); |
304 | tid = get_context_tid(call_data); | |
d67167cd | 305 | cpu_id = get_cpu_id(call_data); |
b093de8a MB |
306 | |
307 | scope = bt_ctf_get_top_level_scope(call_data, | |
308 | BT_EVENT_FIELDS); | |
309 | file = bt_ctf_get_string(bt_ctf_get_field(call_data, | |
310 | scope, "_filename")); | |
311 | if (bt_ctf_field_get_error()) { | |
312 | fprintf(stderr, "Missing fd context info\n"); | |
313 | goto error; | |
314 | } | |
315 | ||
1fc22eb4 | 316 | tmp = get_proc(<tngtop, tid, comm, timestamp); |
b093de8a MB |
317 | tmp->syscall_info = create_syscall_info(__NR_open, cpu_id, tid, -1); |
318 | ||
319 | tmp->files_history = create_file(tmp->files_history, file); | |
1fc22eb4 JD |
320 | |
321 | return BT_CB_OK; | |
322 | ||
323 | error: | |
324 | return BT_CB_ERROR_STOP; | |
325 | } | |
326 | ||
b093de8a MB |
327 | |
328 | enum bt_cb_ret handle_sys_close(struct bt_ctf_event *call_data, | |
329 | void *private_data) | |
330 | { | |
331 | struct definition *scope; | |
332 | unsigned long timestamp; | |
333 | int64_t tid; | |
334 | struct processtop *tmp; | |
335 | char *comm; | |
336 | int fd; | |
337 | ||
338 | timestamp = bt_ctf_get_timestamp(call_data); | |
339 | if (timestamp == -1ULL) | |
340 | goto error; | |
341 | ||
1dec520a JD |
342 | comm = get_context_comm(call_data); |
343 | tid = get_context_tid(call_data); | |
b093de8a MB |
344 | |
345 | scope = bt_ctf_get_top_level_scope(call_data, | |
346 | BT_EVENT_FIELDS); | |
347 | fd = bt_ctf_get_uint64(bt_ctf_get_field(call_data, | |
348 | scope, "_fd")); | |
349 | if (bt_ctf_field_get_error()) { | |
350 | fprintf(stderr, "Missing fd context info\n"); | |
351 | goto error; | |
352 | } | |
353 | ||
354 | tmp = get_proc(<tngtop, tid, comm, timestamp); | |
355 | close_file(tmp, fd); | |
356 | ||
357 | return BT_CB_OK; | |
358 | ||
359 | error: | |
360 | return BT_CB_ERROR_STOP; | |
361 | } |