Commit | Line | Data |
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50656eec MH |
1 | /* |
2 | * probe-event.c : perf-probe definition to kprobe_events format converter | |
3 | * | |
4 | * Written by Masami Hiramatsu <mhiramat@redhat.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | * | |
20 | */ | |
21 | ||
22 | #define _GNU_SOURCE | |
23 | #include <sys/utsname.h> | |
24 | #include <sys/types.h> | |
25 | #include <sys/stat.h> | |
26 | #include <fcntl.h> | |
27 | #include <errno.h> | |
28 | #include <stdio.h> | |
29 | #include <unistd.h> | |
30 | #include <stdlib.h> | |
31 | #include <string.h> | |
4de189fe MH |
32 | #include <stdarg.h> |
33 | #include <limits.h> | |
50656eec MH |
34 | |
35 | #undef _GNU_SOURCE | |
36 | #include "event.h" | |
e1c01d61 | 37 | #include "string.h" |
4de189fe | 38 | #include "strlist.h" |
50656eec MH |
39 | #include "debug.h" |
40 | #include "parse-events.h" /* For debugfs_path */ | |
41 | #include "probe-event.h" | |
42 | ||
43 | #define MAX_CMDLEN 256 | |
44 | #define MAX_PROBE_ARGS 128 | |
45 | #define PERFPROBE_GROUP "probe" | |
46 | ||
47 | #define semantic_error(msg ...) die("Semantic error :" msg) | |
48 | ||
4de189fe | 49 | /* If there is no space to write, returns -E2BIG. */ |
84988450 MH |
50 | static int e_snprintf(char *str, size_t size, const char *format, ...) |
51 | __attribute__((format(printf, 3, 4))); | |
52 | ||
4de189fe MH |
53 | static int e_snprintf(char *str, size_t size, const char *format, ...) |
54 | { | |
55 | int ret; | |
56 | va_list ap; | |
57 | va_start(ap, format); | |
58 | ret = vsnprintf(str, size, format, ap); | |
59 | va_end(ap); | |
60 | if (ret >= (int)size) | |
61 | ret = -E2BIG; | |
62 | return ret; | |
63 | } | |
64 | ||
50656eec MH |
65 | /* Parse probepoint definition. */ |
66 | static void parse_perf_probe_probepoint(char *arg, struct probe_point *pp) | |
67 | { | |
68 | char *ptr, *tmp; | |
69 | char c, nc = 0; | |
70 | /* | |
71 | * <Syntax> | |
72 | * perf probe SRC:LN | |
73 | * perf probe FUNC[+OFFS|%return][@SRC] | |
74 | */ | |
75 | ||
76 | ptr = strpbrk(arg, ":+@%"); | |
77 | if (ptr) { | |
78 | nc = *ptr; | |
79 | *ptr++ = '\0'; | |
80 | } | |
81 | ||
82 | /* Check arg is function or file and copy it */ | |
83 | if (strchr(arg, '.')) /* File */ | |
84 | pp->file = strdup(arg); | |
85 | else /* Function */ | |
86 | pp->function = strdup(arg); | |
87 | DIE_IF(pp->file == NULL && pp->function == NULL); | |
88 | ||
89 | /* Parse other options */ | |
90 | while (ptr) { | |
91 | arg = ptr; | |
92 | c = nc; | |
93 | ptr = strpbrk(arg, ":+@%"); | |
94 | if (ptr) { | |
95 | nc = *ptr; | |
96 | *ptr++ = '\0'; | |
97 | } | |
98 | switch (c) { | |
99 | case ':': /* Line number */ | |
100 | pp->line = strtoul(arg, &tmp, 0); | |
101 | if (*tmp != '\0') | |
102 | semantic_error("There is non-digit charactor" | |
103 | " in line number."); | |
104 | break; | |
105 | case '+': /* Byte offset from a symbol */ | |
106 | pp->offset = strtoul(arg, &tmp, 0); | |
107 | if (*tmp != '\0') | |
108 | semantic_error("There is non-digit charactor" | |
109 | " in offset."); | |
110 | break; | |
111 | case '@': /* File name */ | |
112 | if (pp->file) | |
113 | semantic_error("SRC@SRC is not allowed."); | |
114 | pp->file = strdup(arg); | |
115 | DIE_IF(pp->file == NULL); | |
116 | if (ptr) | |
117 | semantic_error("@SRC must be the last " | |
118 | "option."); | |
119 | break; | |
120 | case '%': /* Probe places */ | |
121 | if (strcmp(arg, "return") == 0) { | |
122 | pp->retprobe = 1; | |
123 | } else /* Others not supported yet */ | |
124 | semantic_error("%%%s is not supported.", arg); | |
125 | break; | |
126 | default: | |
127 | DIE_IF("Program has a bug."); | |
128 | break; | |
129 | } | |
130 | } | |
131 | ||
132 | /* Exclusion check */ | |
133 | if (pp->line && pp->offset) | |
134 | semantic_error("Offset can't be used with line number."); | |
135 | ||
136 | if (!pp->line && pp->file && !pp->function) | |
137 | semantic_error("File always requires line number."); | |
138 | ||
139 | if (pp->offset && !pp->function) | |
140 | semantic_error("Offset requires an entry function."); | |
141 | ||
142 | if (pp->retprobe && !pp->function) | |
143 | semantic_error("Return probe requires an entry function."); | |
144 | ||
145 | if ((pp->offset || pp->line) && pp->retprobe) | |
146 | semantic_error("Offset/Line can't be used with return probe."); | |
147 | ||
148 | pr_debug("symbol:%s file:%s line:%d offset:%d, return:%d\n", | |
149 | pp->function, pp->file, pp->line, pp->offset, pp->retprobe); | |
150 | } | |
151 | ||
152 | /* Parse perf-probe event definition */ | |
153 | int parse_perf_probe_event(const char *str, struct probe_point *pp) | |
154 | { | |
e1c01d61 | 155 | char **argv; |
50656eec MH |
156 | int argc, i, need_dwarf = 0; |
157 | ||
e1c01d61 MH |
158 | argv = argv_split(str, &argc); |
159 | if (!argv) | |
160 | die("argv_split failed."); | |
161 | if (argc > MAX_PROBE_ARGS + 1) | |
162 | semantic_error("Too many arguments"); | |
50656eec MH |
163 | |
164 | /* Parse probe point */ | |
165 | parse_perf_probe_probepoint(argv[0], pp); | |
50656eec MH |
166 | if (pp->file || pp->line) |
167 | need_dwarf = 1; | |
168 | ||
e1c01d61 | 169 | /* Copy arguments and ensure return probe has no C argument */ |
50656eec | 170 | pp->nr_args = argc - 1; |
e1c01d61 MH |
171 | pp->args = zalloc(sizeof(char *) * pp->nr_args); |
172 | for (i = 0; i < pp->nr_args; i++) { | |
173 | pp->args[i] = strdup(argv[i + 1]); | |
174 | if (!pp->args[i]) | |
175 | die("Failed to copy argument."); | |
50656eec MH |
176 | if (is_c_varname(pp->args[i])) { |
177 | if (pp->retprobe) | |
178 | semantic_error("You can't specify local" | |
179 | " variable for kretprobe"); | |
180 | need_dwarf = 1; | |
181 | } | |
e1c01d61 | 182 | } |
50656eec | 183 | |
e1c01d61 | 184 | argv_free(argv); |
50656eec MH |
185 | return need_dwarf; |
186 | } | |
187 | ||
4de189fe MH |
188 | /* Parse kprobe_events event into struct probe_point */ |
189 | void parse_trace_kprobe_event(const char *str, char **group, char **event, | |
190 | struct probe_point *pp) | |
191 | { | |
192 | char pr; | |
193 | char *p; | |
194 | int ret, i, argc; | |
195 | char **argv; | |
196 | ||
197 | pr_debug("Parsing kprobe_events: %s\n", str); | |
198 | argv = argv_split(str, &argc); | |
199 | if (!argv) | |
200 | die("argv_split failed."); | |
201 | if (argc < 2) | |
202 | semantic_error("Too less arguments."); | |
203 | ||
204 | /* Scan event and group name. */ | |
93aaa45a LW |
205 | ret = sscanf(argv[0], "%c:%a[^/ \t]/%a[^ \t]", |
206 | &pr, (float *)(void *)group, (float *)(void *)event); | |
4de189fe MH |
207 | if (ret != 3) |
208 | semantic_error("Failed to parse event name: %s", argv[0]); | |
209 | pr_debug("Group:%s Event:%s probe:%c\n", *group, *event, pr); | |
210 | ||
211 | if (!pp) | |
212 | goto end; | |
213 | ||
214 | pp->retprobe = (pr == 'r'); | |
215 | ||
216 | /* Scan function name and offset */ | |
93aaa45a | 217 | ret = sscanf(argv[1], "%a[^+]+%d", (float *)(void *)&pp->function, &pp->offset); |
4de189fe MH |
218 | if (ret == 1) |
219 | pp->offset = 0; | |
220 | ||
221 | /* kprobe_events doesn't have this information */ | |
222 | pp->line = 0; | |
223 | pp->file = NULL; | |
224 | ||
225 | pp->nr_args = argc - 2; | |
226 | pp->args = zalloc(sizeof(char *) * pp->nr_args); | |
227 | for (i = 0; i < pp->nr_args; i++) { | |
228 | p = strchr(argv[i + 2], '='); | |
229 | if (p) /* We don't need which register is assigned. */ | |
230 | *p = '\0'; | |
231 | pp->args[i] = strdup(argv[i + 2]); | |
232 | if (!pp->args[i]) | |
233 | die("Failed to copy argument."); | |
234 | } | |
235 | ||
236 | end: | |
237 | argv_free(argv); | |
238 | } | |
239 | ||
240 | int synthesize_perf_probe_event(struct probe_point *pp) | |
241 | { | |
242 | char *buf; | |
243 | char offs[64] = "", line[64] = ""; | |
244 | int i, len, ret; | |
245 | ||
246 | pp->probes[0] = buf = zalloc(MAX_CMDLEN); | |
247 | if (!buf) | |
248 | die("Failed to allocate memory by zalloc."); | |
249 | if (pp->offset) { | |
250 | ret = e_snprintf(offs, 64, "+%d", pp->offset); | |
251 | if (ret <= 0) | |
252 | goto error; | |
253 | } | |
254 | if (pp->line) { | |
255 | ret = e_snprintf(line, 64, ":%d", pp->line); | |
256 | if (ret <= 0) | |
257 | goto error; | |
258 | } | |
259 | ||
260 | if (pp->function) | |
261 | ret = e_snprintf(buf, MAX_CMDLEN, "%s%s%s%s", pp->function, | |
262 | offs, pp->retprobe ? "%return" : "", line); | |
263 | else | |
84988450 | 264 | ret = e_snprintf(buf, MAX_CMDLEN, "%s%s", pp->file, line); |
4de189fe MH |
265 | if (ret <= 0) |
266 | goto error; | |
267 | len = ret; | |
268 | ||
269 | for (i = 0; i < pp->nr_args; i++) { | |
270 | ret = e_snprintf(&buf[len], MAX_CMDLEN - len, " %s", | |
271 | pp->args[i]); | |
272 | if (ret <= 0) | |
273 | goto error; | |
274 | len += ret; | |
275 | } | |
276 | pp->found = 1; | |
277 | ||
278 | return pp->found; | |
279 | error: | |
280 | free(pp->probes[0]); | |
281 | ||
282 | return ret; | |
283 | } | |
284 | ||
50656eec MH |
285 | int synthesize_trace_kprobe_event(struct probe_point *pp) |
286 | { | |
287 | char *buf; | |
288 | int i, len, ret; | |
289 | ||
290 | pp->probes[0] = buf = zalloc(MAX_CMDLEN); | |
291 | if (!buf) | |
292 | die("Failed to allocate memory by zalloc."); | |
4de189fe MH |
293 | ret = e_snprintf(buf, MAX_CMDLEN, "%s+%d", pp->function, pp->offset); |
294 | if (ret <= 0) | |
50656eec MH |
295 | goto error; |
296 | len = ret; | |
297 | ||
298 | for (i = 0; i < pp->nr_args; i++) { | |
4de189fe MH |
299 | ret = e_snprintf(&buf[len], MAX_CMDLEN - len, " %s", |
300 | pp->args[i]); | |
301 | if (ret <= 0) | |
50656eec MH |
302 | goto error; |
303 | len += ret; | |
304 | } | |
305 | pp->found = 1; | |
306 | ||
307 | return pp->found; | |
308 | error: | |
309 | free(pp->probes[0]); | |
50656eec MH |
310 | |
311 | return ret; | |
312 | } | |
313 | ||
4de189fe MH |
314 | static int open_kprobe_events(int flags, int mode) |
315 | { | |
316 | char buf[PATH_MAX]; | |
317 | int ret; | |
318 | ||
319 | ret = e_snprintf(buf, PATH_MAX, "%s/../kprobe_events", debugfs_path); | |
320 | if (ret < 0) | |
321 | die("Failed to make kprobe_events path."); | |
322 | ||
323 | ret = open(buf, flags, mode); | |
324 | if (ret < 0) { | |
325 | if (errno == ENOENT) | |
326 | die("kprobe_events file does not exist -" | |
327 | " please rebuild with CONFIG_KPROBE_TRACER."); | |
328 | else | |
329 | die("Could not open kprobe_events file: %s", | |
330 | strerror(errno)); | |
331 | } | |
332 | return ret; | |
333 | } | |
334 | ||
335 | /* Get raw string list of current kprobe_events */ | |
336 | static struct strlist *get_trace_kprobe_event_rawlist(int fd) | |
337 | { | |
338 | int ret, idx; | |
339 | FILE *fp; | |
340 | char buf[MAX_CMDLEN]; | |
341 | char *p; | |
342 | struct strlist *sl; | |
343 | ||
344 | sl = strlist__new(true, NULL); | |
345 | ||
346 | fp = fdopen(dup(fd), "r"); | |
347 | while (!feof(fp)) { | |
348 | p = fgets(buf, MAX_CMDLEN, fp); | |
349 | if (!p) | |
350 | break; | |
351 | ||
352 | idx = strlen(p) - 1; | |
353 | if (p[idx] == '\n') | |
354 | p[idx] = '\0'; | |
355 | ret = strlist__add(sl, buf); | |
356 | if (ret < 0) | |
357 | die("strlist__add failed: %s", strerror(-ret)); | |
358 | } | |
359 | fclose(fp); | |
360 | ||
361 | return sl; | |
362 | } | |
363 | ||
364 | /* Free and zero clear probe_point */ | |
365 | static void clear_probe_point(struct probe_point *pp) | |
366 | { | |
367 | int i; | |
368 | ||
369 | if (pp->function) | |
370 | free(pp->function); | |
371 | if (pp->file) | |
372 | free(pp->file); | |
373 | for (i = 0; i < pp->nr_args; i++) | |
374 | free(pp->args[i]); | |
375 | if (pp->args) | |
376 | free(pp->args); | |
377 | for (i = 0; i < pp->found; i++) | |
378 | free(pp->probes[i]); | |
5660ce34 | 379 | memset(pp, 0, sizeof(*pp)); |
4de189fe MH |
380 | } |
381 | ||
278498d4 MH |
382 | /* Show an event */ |
383 | static void show_perf_probe_event(const char *group, const char *event, | |
384 | const char *place, struct probe_point *pp) | |
385 | { | |
386 | int i; | |
387 | char buf[128]; | |
388 | ||
389 | e_snprintf(buf, 128, "%s:%s", group, event); | |
390 | printf(" %-40s (on %s", buf, place); | |
391 | ||
392 | if (pp->nr_args > 0) { | |
393 | printf(" with"); | |
394 | for (i = 0; i < pp->nr_args; i++) | |
395 | printf(" %s", pp->args[i]); | |
396 | } | |
397 | printf(")\n"); | |
398 | } | |
399 | ||
4de189fe MH |
400 | /* List up current perf-probe events */ |
401 | void show_perf_probe_events(void) | |
402 | { | |
403 | unsigned int i; | |
278498d4 | 404 | int fd, nr; |
4de189fe MH |
405 | char *group, *event; |
406 | struct probe_point pp; | |
407 | struct strlist *rawlist; | |
408 | struct str_node *ent; | |
409 | ||
410 | fd = open_kprobe_events(O_RDONLY, 0); | |
411 | rawlist = get_trace_kprobe_event_rawlist(fd); | |
412 | close(fd); | |
413 | ||
414 | for (i = 0; i < strlist__nr_entries(rawlist); i++) { | |
415 | ent = strlist__entry(rawlist, i); | |
416 | parse_trace_kprobe_event(ent->s, &group, &event, &pp); | |
278498d4 MH |
417 | /* Synthesize only event probe point */ |
418 | nr = pp.nr_args; | |
419 | pp.nr_args = 0; | |
4de189fe | 420 | synthesize_perf_probe_event(&pp); |
278498d4 MH |
421 | pp.nr_args = nr; |
422 | /* Show an event */ | |
423 | show_perf_probe_event(group, event, pp.probes[0], &pp); | |
4de189fe MH |
424 | free(group); |
425 | free(event); | |
426 | clear_probe_point(&pp); | |
427 | } | |
428 | ||
429 | strlist__delete(rawlist); | |
430 | } | |
431 | ||
b498ce1f | 432 | /* Get current perf-probe event names */ |
fa28244d | 433 | static struct strlist *get_perf_event_names(int fd, bool include_group) |
b498ce1f MH |
434 | { |
435 | unsigned int i; | |
436 | char *group, *event; | |
fa28244d | 437 | char buf[128]; |
b498ce1f MH |
438 | struct strlist *sl, *rawlist; |
439 | struct str_node *ent; | |
440 | ||
441 | rawlist = get_trace_kprobe_event_rawlist(fd); | |
442 | ||
e1d2017b | 443 | sl = strlist__new(true, NULL); |
b498ce1f MH |
444 | for (i = 0; i < strlist__nr_entries(rawlist); i++) { |
445 | ent = strlist__entry(rawlist, i); | |
446 | parse_trace_kprobe_event(ent->s, &group, &event, NULL); | |
fa28244d MH |
447 | if (include_group) { |
448 | if (e_snprintf(buf, 128, "%s:%s", group, event) < 0) | |
449 | die("Failed to copy group:event name."); | |
450 | strlist__add(sl, buf); | |
451 | } else | |
452 | strlist__add(sl, event); | |
b498ce1f | 453 | free(group); |
e1d2017b | 454 | free(event); |
b498ce1f MH |
455 | } |
456 | ||
457 | strlist__delete(rawlist); | |
458 | ||
459 | return sl; | |
460 | } | |
461 | ||
a9b495b0 | 462 | static void write_trace_kprobe_event(int fd, const char *buf) |
50656eec MH |
463 | { |
464 | int ret; | |
465 | ||
fa28244d | 466 | pr_debug("Writing event: %s\n", buf); |
50656eec MH |
467 | ret = write(fd, buf, strlen(buf)); |
468 | if (ret <= 0) | |
fa28244d | 469 | die("Failed to write event: %s", strerror(errno)); |
50656eec MH |
470 | } |
471 | ||
b498ce1f MH |
472 | static void get_new_event_name(char *buf, size_t len, const char *base, |
473 | struct strlist *namelist) | |
474 | { | |
475 | int i, ret; | |
17f88fcd MH |
476 | |
477 | /* Try no suffix */ | |
478 | ret = e_snprintf(buf, len, "%s", base); | |
479 | if (ret < 0) | |
480 | die("snprintf() failed: %s", strerror(-ret)); | |
481 | if (!strlist__has_entry(namelist, buf)) | |
482 | return; | |
483 | ||
484 | /* Try to add suffix */ | |
485 | for (i = 1; i < MAX_EVENT_INDEX; i++) { | |
b498ce1f MH |
486 | ret = e_snprintf(buf, len, "%s_%d", base, i); |
487 | if (ret < 0) | |
488 | die("snprintf() failed: %s", strerror(-ret)); | |
489 | if (!strlist__has_entry(namelist, buf)) | |
490 | break; | |
491 | } | |
492 | if (i == MAX_EVENT_INDEX) | |
493 | die("Too many events are on the same function."); | |
494 | } | |
495 | ||
50656eec MH |
496 | void add_trace_kprobe_events(struct probe_point *probes, int nr_probes) |
497 | { | |
498 | int i, j, fd; | |
499 | struct probe_point *pp; | |
500 | char buf[MAX_CMDLEN]; | |
b498ce1f MH |
501 | char event[64]; |
502 | struct strlist *namelist; | |
50656eec | 503 | |
b498ce1f MH |
504 | fd = open_kprobe_events(O_RDWR, O_APPEND); |
505 | /* Get current event names */ | |
fa28244d | 506 | namelist = get_perf_event_names(fd, false); |
50656eec MH |
507 | |
508 | for (j = 0; j < nr_probes; j++) { | |
509 | pp = probes + j; | |
b498ce1f MH |
510 | for (i = 0; i < pp->found; i++) { |
511 | /* Get an unused new event name */ | |
512 | get_new_event_name(event, 64, pp->function, namelist); | |
513 | snprintf(buf, MAX_CMDLEN, "%c:%s/%s %s\n", | |
514 | pp->retprobe ? 'r' : 'p', | |
515 | PERFPROBE_GROUP, event, | |
516 | pp->probes[i]); | |
50656eec | 517 | write_trace_kprobe_event(fd, buf); |
a9b495b0 MH |
518 | printf("Added new event:\n"); |
519 | /* Get the first parameter (probe-point) */ | |
520 | sscanf(pp->probes[i], "%s", buf); | |
521 | show_perf_probe_event(PERFPROBE_GROUP, event, | |
522 | buf, pp); | |
b498ce1f MH |
523 | /* Add added event name to namelist */ |
524 | strlist__add(namelist, event); | |
525 | } | |
50656eec | 526 | } |
a9b495b0 MH |
527 | /* Show how to use the event. */ |
528 | printf("\nYou can now use it on all perf tools, such as:\n\n"); | |
529 | printf("\tperf record -e %s:%s -a sleep 1\n\n", PERFPROBE_GROUP, event); | |
530 | ||
e1d2017b | 531 | strlist__delete(namelist); |
50656eec MH |
532 | close(fd); |
533 | } | |
fa28244d MH |
534 | |
535 | static void del_trace_kprobe_event(int fd, const char *group, | |
536 | const char *event, struct strlist *namelist) | |
537 | { | |
538 | char buf[128]; | |
539 | ||
540 | if (e_snprintf(buf, 128, "%s:%s", group, event) < 0) | |
541 | die("Failed to copy event."); | |
542 | if (!strlist__has_entry(namelist, buf)) { | |
543 | pr_warning("Warning: event \"%s\" is not found.\n", buf); | |
544 | return; | |
545 | } | |
546 | /* Convert from perf-probe event to trace-kprobe event */ | |
547 | if (e_snprintf(buf, 128, "-:%s/%s", group, event) < 0) | |
548 | die("Failed to copy event."); | |
549 | ||
550 | write_trace_kprobe_event(fd, buf); | |
551 | printf("Remove event: %s:%s\n", group, event); | |
552 | } | |
553 | ||
554 | void del_trace_kprobe_events(struct strlist *dellist) | |
555 | { | |
556 | int fd; | |
557 | unsigned int i; | |
558 | const char *group, *event; | |
559 | char *p, *str; | |
560 | struct str_node *ent; | |
561 | struct strlist *namelist; | |
562 | ||
563 | fd = open_kprobe_events(O_RDWR, O_APPEND); | |
564 | /* Get current event names */ | |
565 | namelist = get_perf_event_names(fd, true); | |
566 | ||
567 | for (i = 0; i < strlist__nr_entries(dellist); i++) { | |
568 | ent = strlist__entry(dellist, i); | |
569 | str = strdup(ent->s); | |
570 | if (!str) | |
571 | die("Failed to copy event."); | |
572 | p = strchr(str, ':'); | |
573 | if (p) { | |
574 | group = str; | |
575 | *p = '\0'; | |
576 | event = p + 1; | |
577 | } else { | |
578 | group = PERFPROBE_GROUP; | |
579 | event = str; | |
580 | } | |
581 | del_trace_kprobe_event(fd, group, event, namelist); | |
582 | free(str); | |
583 | } | |
584 | strlist__delete(namelist); | |
585 | close(fd); | |
586 | } | |
587 |