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Vector Packet Processing
log.c
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1 /*
2  * Copyright (c) 2018 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include <stdbool.h>
17 #include <vlib/vlib.h>
18 #include <vlib/log.h>
19 #include <syslog.h>
20 
21 vlib_log_main_t log_main = {
22  .default_log_level = VLIB_LOG_LEVEL_NOTICE,
23  .default_syslog_log_level = VLIB_LOG_LEVEL_WARNING,
24  .unthrottle_time = 3,
25  .size = 512,
26  .default_rate_limit = 50,
27 };
28 
29 int
31 {
33  int i;
34 
35  i = lm->next - lm->count;
36 
37  if (i < 0)
38  i += lm->size;
39  return i;
40 }
41 
42 static vlib_log_class_data_t *
44 {
46  return vec_elt_at_index (lm->classes, (ci >> 16));
47 }
48 
51 {
53  return vec_elt_at_index (c->subclasses, (ci & 0xffff));
54 }
55 
56 static int
58 {
59  switch (level)
60  {
61 #define LOG_DISABLED LOG_DEBUG
62 #define _(n,uc,lc) \
63  case VLIB_LOG_LEVEL_##uc:\
64  return LOG_##uc;
66 #undef _
67 #undef LOG_DISABLED
68  }
69  return LOG_DEBUG;
70 }
71 
72 u8 *
73 format_vlib_log_class (u8 * s, va_list * args)
74 {
75  vlib_log_class_t ci = va_arg (*args, vlib_log_class_t);
78 
79  if (sc->name)
80  return format (s, "%v/%v", c->name, sc->name);
81  else
82  return format (s, "%v", c->name, 0);
83 }
84 
85 
86 void
87 vlib_log (vlib_log_level_t level, vlib_log_class_t class, char *fmt, ...)
88 {
93  va_list va;
94  f64 t = vlib_time_now (vm);
95  f64 delta = t - sc->last_event_timestamp;
96  u8 *s = 0;
97  bool use_formatted_log_entry = true;
98 
99  vec_validate (lm->entries, lm->size);
100  /* make sure we are running on the main thread to avoid use in dataplane
101  code, for dataplane logging consider use of event-logger */
102  ASSERT (vlib_get_thread_index () == 0);
103 
104  if (level > sc->level)
105  {
106  use_formatted_log_entry = false;
107  goto syslog;
108  }
109 
110  if ((delta > lm->unthrottle_time) ||
111  (sc->is_throttling == 0 && (delta > 1)))
112  {
113  sc->last_event_timestamp = t;
114  sc->last_sec_count = 0;
115  sc->is_throttling = 0;
116  }
117  else
118  {
119  sc->last_sec_count++;
120  if (sc->last_sec_count > sc->rate_limit)
121  return;
122  else if (sc->last_sec_count == sc->rate_limit)
123  {
124  vec_reset_length (s);
125  s = format (0, "--- message(s) throttled ---");
126  sc->is_throttling = 1;
127  }
128  }
129 
130  if (s == 0)
131  {
132  va_start (va, fmt);
133  s = va_format (s, fmt, &va);
134  va_end (va);
135  }
136 
137  e = vec_elt_at_index (lm->entries, lm->next);
138  vec_free (e->string);
139  e->level = level;
140  e->class = class;
141  e->string = s;
142  e->timestamp = t;
143 
144  lm->next = (lm->next + 1) % lm->size;
145  if (lm->size > lm->count)
146  lm->count++;
147 
148 syslog:
149  if (sc->syslog_level != VLIB_LOG_LEVEL_DISABLED &&
150  level <= sc->syslog_level)
151  {
152  u8 *tmp = format (NULL, "%U", format_vlib_log_class, class);
153  if (use_formatted_log_entry)
154  {
155  syslog (vlib_log_level_to_syslog_priority (level), "%.*s: %.*s",
156  (int) vec_len (tmp), tmp,
157  (int) (vec_len (s) -
158  (vec_c_string_is_terminated (s) ? 1 : 0)), s);
159  }
160  else
161  {
162  tmp = format (tmp, ": ");
163  va_start (va, fmt);
164  tmp = va_format (tmp, fmt, &va);
165  va_end (va);
166  syslog (vlib_log_level_to_syslog_priority (level), "%.*s",
167  (int) (vec_len (tmp) -
168  (vec_c_string_is_terminated (tmp) ? 1 : 0)), tmp);
169  }
170  vec_free (tmp);
171  }
172 
173 }
174 
175 static vlib_log_class_t
176 vlib_log_register_class_internal (char *class, char *subclass, u32 limit)
177 {
178  vlib_log_main_t *lm = &log_main;
179  vlib_log_class_data_t *c = NULL;
182  vec_foreach (tmp, lm->classes)
183  {
184  if (vec_len (tmp->name) != strlen (class))
185  continue;
186  if (!memcmp (class, tmp->name, vec_len (tmp->name)))
187  {
188  c = tmp;
189  break;
190  }
191  }
192  if (!c)
193  {
194  vec_add2 (lm->classes, c, 1);
195  c->index = c - lm->classes;
196  c->name = format (0, "%s", class);
197  }
198 
199  vec_add2 (c->subclasses, s, 1);
200  s->index = s - c->subclasses;
201  s->name = subclass ? format (0, "%s", subclass) : 0;
202  s->rate_limit = (limit == 0) ? lm->default_rate_limit : limit;
203  s->level = lm->default_log_level;
205  return (c->index << 16) | (s->index);
206 }
207 
209 vlib_log_register_class (char *class, char *subclass)
210 {
211  return vlib_log_register_class_internal (class, subclass,
212  0 /* default rate limit */ );
213 }
214 
216 vlib_log_register_class_rate_limit (char *class, char *subclass, u32 limit)
217 {
218  return vlib_log_register_class_internal (class, subclass, limit);
219 }
220 
221 
222 u8 *
223 format_vlib_log_level (u8 * s, va_list * args)
224 {
225  vlib_log_level_t i = va_arg (*args, vlib_log_level_t);
226  char *t = 0;
227 
228  switch (i)
229  {
230 #define _(v,uc,lc) case VLIB_LOG_LEVEL_##uc: t = #lc; break;
232 #undef _
233  default:
234  return format (s, "unknown");
235  }
236  return format (s, "%s", t);
237 }
238 
239 u32
241 {
242  return log_main.indent;
243 }
244 
245 static clib_error_t *
247 {
248  vlib_log_main_t *lm = &log_main;
249 
250  gettimeofday (&lm->time_zero_timeval, 0);
251  lm->time_zero = vlib_time_now (vm);
252 
253  vec_validate (lm->entries, lm->size);
254  lm->log_class = vlib_log_register_class ("log", 0);
255  u8 *tmp = format (NULL, "%U %-10U %-10U ", format_time_float, 0, (f64) 0,
257  log_main.indent = vec_len (tmp);
258  vec_free (tmp);
259  return 0;
260 }
261 
263 
264 
265 static clib_error_t *
267  unformat_input_t * input, vlib_cli_command_t * cmd)
268 {
269  clib_error_t *error = 0;
270  vlib_log_main_t *lm = &log_main;
271  vlib_log_entry_t *e;
272  int i = last_log_entry ();
273  int count = lm->count;
274  f64 time_offset;
275 
276  time_offset = (f64) lm->time_zero_timeval.tv_sec
277  + (((f64) lm->time_zero_timeval.tv_usec) * 1e-6) - lm->time_zero;
278 
279  while (count--)
280  {
281  e = vec_elt_at_index (lm->entries, i);
282  vlib_cli_output (vm, "%U %-10U %-14U %v",
283  format_time_float, 0, e->timestamp + time_offset,
286  i = (i + 1) % lm->size;
287  }
288 
289  return error;
290 }
291 
292 /* *INDENT-OFF* */
293 VLIB_CLI_COMMAND (cli_show_log, static) = {
294  .path = "show logging",
295  .short_help = "show logging",
296  .function = show_log,
297 };
298 /* *INDENT-ON* */
299 
300 static clib_error_t *
302  unformat_input_t * input, vlib_cli_command_t * cmd)
303 {
304  clib_error_t *error = 0;
305  vlib_log_main_t *lm = &log_main;
308 
309  vlib_cli_output (vm, "%-20s %u entries", "Buffer Size:", lm->size);
310  vlib_cli_output (vm, "Defaults:\n");
311  vlib_cli_output (vm, "%-20s %U", " Log Level:",
313  vlib_cli_output (vm, "%-20s %U", " Syslog Log Level:",
315  vlib_cli_output (vm, "%-20s %u msgs/sec", " Rate Limit:",
316  lm->default_rate_limit);
317  vlib_cli_output (vm, "\n");
318  vlib_cli_output (vm, "%-22s %-14s %-14s %s",
319  "Class/Subclass", "Level", "Syslog Level", "Rate Limit");
320 
321 
322  u8 *defstr = format (0, "default");
323  vec_foreach (c, lm->classes)
324  {
325  vlib_cli_output (vm, "%v", c->name);
326  vec_foreach (sc, c->subclasses)
327  {
328  vlib_cli_output (vm, " %-20v %-14U %-14U %d",
329  sc->name ? sc->name : defstr,
332  sc->rate_limit);
333  }
334  }
335  vec_free (defstr);
336 
337  return error;
338 }
339 
340 /* *INDENT-OFF* */
341 VLIB_CLI_COMMAND (cli_show_log_config, static) = {
342  .path = "show logging configuration",
343  .short_help = "show logging configuration",
344  .function = show_log_config,
345 };
346 /* *INDENT-ON* */
347 
348 static clib_error_t *
350  unformat_input_t * input, vlib_cli_command_t * cmd)
351 {
352  clib_error_t *error = 0;
353  vlib_log_main_t *lm = &log_main;
354  vlib_log_entry_t *e;
355  int i = last_log_entry ();
356  int count = lm->count;
357 
358  while (count--)
359  {
360  e = vec_elt_at_index (lm->entries, i);
361  vec_free (e->string);
362  i = (i + 1) % lm->size;
363  }
364 
365  lm->count = 0;
366  lm->next = 0;
367  vlib_log_info (lm->log_class, "log cleared");
368  return error;
369 }
370 
371 /* *INDENT-OFF* */
372 VLIB_CLI_COMMAND (cli_clear_log, static) = {
373  .path = "clear logging",
374  .short_help = "clear logging",
375  .function = clear_log,
376 };
377 /* *INDENT-ON* */
378 
379 static uword
380 unformat_vlib_log_level (unformat_input_t * input, va_list * args)
381 {
382  vlib_log_level_t *level = va_arg (*args, vlib_log_level_t *);
383  u8 *level_str = NULL;
384  uword rv = 1;
385  if (unformat (input, "%s", &level_str))
386  {
387 #define _(v, uc, lc) \
388  const char __##uc[] = #lc; \
389  if (!strcmp ((const char *) level_str, __##uc)) \
390  { \
391  *level = VLIB_LOG_LEVEL_##uc; \
392  rv = 1; \
393  goto done; \
394  }
396  rv = 0;
397 #undef _
398  }
399 done:
400  vec_free (level_str);
401  return rv;
402 }
403 
404 static uword
405 unformat_vlib_log_class (unformat_input_t * input, va_list * args)
406 {
407  vlib_log_class_data_t **class = va_arg (*args, vlib_log_class_data_t **);
408  uword rv = 0;
409  u8 *class_str = NULL;
410  vlib_log_main_t *lm = &log_main;
411  if (unformat (input, "%v", &class_str))
412  {
413  vlib_log_class_data_t *cdata;
414  vec_foreach (cdata, lm->classes)
415  {
416  if (vec_is_equal (cdata->name, class_str))
417  {
418  *class = cdata;
419  rv = 1;
420  break;
421  }
422  }
423  }
424  vec_free (class_str);
425  return rv;
426 }
427 
428 static clib_error_t *
430  unformat_input_t * input, vlib_cli_command_t * cmd)
431 {
432  unformat_input_t _line_input, *line_input = &_line_input;
433  clib_error_t *rv = NULL;
434  int rate_limit;
435  bool set_rate_limit = false;
436  bool set_level = false;
437  bool set_syslog_level = false;
438  vlib_log_level_t level;
439  vlib_log_level_t syslog_level;
440 
441  /* Get a line of input. */
442  if (!unformat_user (input, unformat_line_input, line_input))
443  return 0;
444 
445  vlib_log_class_data_t *class = NULL;
446  if (!unformat (line_input, "%U", unformat_vlib_log_class, &class))
447  {
448  return clib_error_return (0, "unknown log class `%U'",
449  format_unformat_error, line_input);
450  }
451  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
452  {
453  if (unformat (line_input, "rate-limit %d", &rate_limit))
454  {
455  set_rate_limit = true;
456  }
457  else
458  if (unformat
459  (line_input, "level %U", unformat_vlib_log_level, &level))
460  {
461  set_level = true;
462  }
463  else
464  if (unformat
465  (line_input, "syslog-level %U", unformat_vlib_log_level,
466  &syslog_level))
467  {
468  set_syslog_level = true;
469  }
470  else
471  {
472  return clib_error_return (0, "unknown input `%U'",
473  format_unformat_error, line_input);
474  }
475  }
476 
477  if (set_level)
478  {
479  vlib_log_subclass_data_t *subclass;
480  vec_foreach (subclass, class->subclasses)
481  {
482  subclass->level = level;
483  }
484  }
485  if (set_syslog_level)
486  {
487  vlib_log_subclass_data_t *subclass;
488  vec_foreach (subclass, class->subclasses)
489  {
490  subclass->syslog_level = syslog_level;
491  }
492  }
493  if (set_rate_limit)
494  {
495  vlib_log_subclass_data_t *subclass;
496  vec_foreach (subclass, class->subclasses)
497  {
498  subclass->rate_limit = rate_limit;
499  }
500  }
501 
502  return rv;
503 }
504 
505 /* *INDENT-OFF* */
506 VLIB_CLI_COMMAND (cli_set_log, static) = {
507  .path = "set logging class",
508  .short_help = "set logging class <class> [rate-limit <int>] "
509  "[level <level>] [syslog-level <level>]",
510  .function = set_log_class,
511 };
512 /* *INDENT-ON* */
513 
514 static clib_error_t *
516  unformat_input_t * input, vlib_cli_command_t * cmd)
517 {
518  unformat_input_t _line_input, *line_input = &_line_input;
519  clib_error_t *rv = NULL;
520  int unthrottle_time;
521  vlib_log_main_t *lm = &log_main;
522 
523  /* Get a line of input. */
524  if (!unformat_user (input, unformat_line_input, line_input))
525  return 0;
526 
527  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
528  {
529  if (unformat (line_input, "%d", &unthrottle_time))
530  lm->unthrottle_time = unthrottle_time;
531  else
532  return clib_error_return (0, "unknown input `%U'",
533  format_unformat_error, line_input);
534  }
535 
536  return rv;
537 }
538 
539 /* *INDENT-OFF* */
540 VLIB_CLI_COMMAND (cli_set_log_params, static) = {
541  .path = "set logging unthrottle-time",
542  .short_help = "set logging unthrottle-time <int>",
543  .function = set_log_unth_time,
544 };
545 /* *INDENT-ON* */
546 
547 static clib_error_t *
549  unformat_input_t * input, vlib_cli_command_t * cmd)
550 {
551  unformat_input_t _line_input, *line_input = &_line_input;
552  clib_error_t *rv = NULL;
553  int size;
554  vlib_log_main_t *lm = &log_main;
555 
556  /* Get a line of input. */
557  if (!unformat_user (input, unformat_line_input, line_input))
558  return 0;
559 
560  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
561  {
562  if (unformat (line_input, "%d", &size))
563  {
564  lm->size = size;
565  vec_validate (lm->entries, lm->size);
566  }
567  else
568  return clib_error_return (0, "unknown input `%U'",
569  format_unformat_error, line_input);
570  }
571 
572  return rv;
573 }
574 
575 /* *INDENT-OFF* */
576 VLIB_CLI_COMMAND (cli_set_log_size, static) = {
577  .path = "set logging size",
578  .short_help = "set logging size <int>",
579  .function = set_log_size,
580 };
581 /* *INDENT-ON* */
582 
583 static uword
585 {
586  vlib_log_class_data_t *class = va_arg (*args, vlib_log_class_data_t *);
587  vlib_log_subclass_data_t **subclass =
588  va_arg (*args, vlib_log_subclass_data_t **);
589  uword rv = 0;
590  u8 *subclass_str = NULL;
591  if (unformat (input, "%v", &subclass_str))
592  {
593  vlib_log_subclass_data_t *scdata;
594  vec_foreach (scdata, class->subclasses)
595  {
596  if (vec_is_equal (scdata->name, subclass_str))
597  {
598  rv = 1;
599  *subclass = scdata;
600  break;
601  }
602  }
603  }
604  vec_free (subclass_str);
605  return rv;
606 }
607 
608 static clib_error_t *
610  unformat_input_t * input, vlib_cli_command_t * cmd)
611 {
612  unformat_input_t _line_input, *line_input = &_line_input;
613  /* Get a line of input. */
614  if (!unformat_user (input, unformat_line_input, line_input))
615  return 0;
616 
617  vlib_log_class_data_t *class = NULL;
618  vlib_log_subclass_data_t *subclass = NULL;
619  vlib_log_level_t level;
620  if (unformat (line_input, "%U", unformat_vlib_log_level, &level))
621  {
622  if (unformat (line_input, "%U", unformat_vlib_log_class, &class))
623  {
624  if (unformat
625  (line_input, "%U", unformat_vlib_log_subclass, class,
626  &subclass))
627  {
628  vlib_log (level,
629  (class->index << 16) | (subclass->index), "%U",
630  format_unformat_input, line_input);
631  }
632  else
633  {
634  return clib_error_return (0,
635  "unknown log subclass near beginning of `%U'",
636  format_unformat_error, line_input);
637  }
638  }
639  else
640  {
641  return clib_error_return (0,
642  "unknown log class near beginning of `%U'",
643  format_unformat_error, line_input);
644  }
645  }
646  else
647  {
648  return clib_error_return (0, "unknown log level near beginning of `%U'",
649  format_unformat_error, line_input);
650  }
651  return 0;
652 }
653 
654 /* *INDENT-OFF* */
655 VLIB_CLI_COMMAND (cli_test_log, static) = {
656  .path = "test log",
657  .short_help = "test log <level> <class> <subclass> <message>",
658  .function = test_log_class_subclass,
659 };
660 /* *INDENT-ON* */
661 
662 static clib_error_t *
664 {
665  vlib_log_main_t *lm = &log_main;
666 
668  {
669  if (unformat (input, "size %d", &lm->size))
670  vec_validate (lm->entries, lm->size);
671  else if (unformat (input, "unthrottle-time %d", &lm->unthrottle_time))
672  ;
673  else if (unformat (input, "default-log-level %U",
675  ;
676  else if (unformat (input, "default-syslog-log-level %U",
679  ;
680  else
681  {
682  return unformat_parse_error (input);
683  }
684  }
685 
686  return 0;
687 }
688 
690 
691 /*
692  * fd.io coding-style-patch-verification: ON
693  *
694  * Local Variables:
695  * eval: (c-set-style "gnu")
696  * End:
697  */
vlib_log_class_t vlib_log_register_class(char *class, char *subclass)
Definition: log.c:209
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:507
static clib_error_t * show_log_config(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:301
u8 count
Definition: dhcp.api:208
static clib_error_t * show_log(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:266
u8 * format_time_float(u8 *s, va_list *args)
Definition: unix-formats.c:846
#define vec_c_string_is_terminated(V)
Test whether a vector is a NULL terminated c-string.
Definition: vec.h:1080
u8 * format_vlib_log_level(u8 *s, va_list *args)
Definition: log.c:223
vlib_log_entry_t * entries
Definition: log.h:71
vlib_log_level_t level
Definition: log.h:52
static vlib_log_class_data_t * get_class_data(vlib_log_class_t ci)
Definition: log.c:43
int last_log_entry()
Definition: log.c:30
vlib_log_level_t syslog_level
Definition: log.h:54
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:291
static clib_error_t * clear_log(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:349
vlib_log_class_data_t * classes
Definition: log.h:72
#define vec_add2(V, P, N)
Add N elements to end of vector V, return pointer to new elements in P.
Definition: vec.h:628
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:989
f64 timestamp
Definition: log.h:43
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
u8 * va_format(u8 *s, const char *fmt, va_list *va)
Definition: format.c:387
unsigned char u8
Definition: types.h:56
static uword unformat_vlib_log_subclass(unformat_input_t *input, va_list *args)
Definition: log.c:584
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
double f64
Definition: types.h:142
u32 indent
Definition: log.h:82
static clib_error_t * vlib_log_init(vlib_main_t *vm)
Definition: log.c:246
u32 vlib_log_class_t
Definition: vlib.h:51
static clib_error_t * log_config(vlib_main_t *vm, unformat_input_t *input)
Definition: log.c:663
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:173
struct timeval time_zero_timeval
Definition: log.h:85
u8 * format_white_space(u8 *s, va_list *va)
Definition: std-formats.c:129
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
#define clib_error_return(e, args...)
Definition: error.h:99
static vlib_log_class_t vlib_log_register_class_internal(char *class, char *subclass, u32 limit)
Definition: log.c:176
unsigned int u32
Definition: types.h:88
vlib_log_class_t vlib_log_register_class_rate_limit(char *class, char *subclass, u32 limit)
Definition: log.c:216
int default_log_level
Definition: log.h:79
unformat_function_t unformat_line_input
Definition: format.h:283
vlib_log_class_t log_class
Definition: log.h:76
static int vlib_log_level_to_syslog_priority(vlib_log_level_t level)
Definition: log.c:57
static clib_error_t * set_log_class(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:429
struct _unformat_input_t unformat_input_t
u64 size
Definition: vhost_user.h:150
int default_syslog_log_level
Definition: log.h:80
int size
Definition: log.h:73
static clib_error_t * set_log_unth_time(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:515
vlib_log_main_t log_main
Definition: log.c:21
static clib_error_t * test_log_class_subclass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:609
int next
Definition: log.h:73
vlib_main_t * vm
Definition: in2out_ed.c:1599
RFC5424 syslog protocol declarations.
u8 * format_unformat_input(u8 *s, va_list *va)
Definition: unformat.c:143
#define VLIB_EARLY_CONFIG_FUNCTION(x, n,...)
Definition: init.h:226
#define UNFORMAT_END_OF_INPUT
Definition: format.h:145
svmdb_client_t * c
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:218
sll srl srl sll sra u16x4 i
Definition: vector_sse42.h:317
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:380
void vlib_log(vlib_log_level_t level, vlib_log_class_t class, char *fmt,...)
Definition: log.c:87
static vlib_log_subclass_data_t * get_subclass_data(vlib_log_class_t ci)
Definition: log.c:50
vlib_log_subclass_data_t * subclasses
Definition: log.h:66
#define vec_is_equal(v1, v2)
Compare two vectors, not NULL-pointer tolerant.
Definition: vec.h:979
int default_rate_limit
Definition: log.h:78
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:152
Definition: log.h:39
#define ASSERT(truth)
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:689
vlib_log_class_t class
Definition: log.h:42
u32 vlib_log_get_indent()
Definition: log.c:240
int count
Definition: log.h:73
vlib_log_level_t
Definition: log.h:32
static uword unformat_vlib_log_class(unformat_input_t *input, va_list *args)
Definition: log.c:405
static uword unformat_vlib_log_level(unformat_input_t *input, va_list *args)
Definition: log.c:380
vlib_log_level_t level
Definition: log.h:41
f64 time_zero
Definition: log.h:86
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
#define unformat_parse_error(input)
Definition: format.h:269
u8 * format_vlib_log_class(u8 *s, va_list *args)
Definition: log.c:73
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
static clib_error_t * set_log_size(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:548
#define vlib_log_info(...)
Definition: log.h:108
u64 uword
Definition: types.h:112
f64 last_event_timestamp
Definition: log.h:56
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
#define vec_foreach(var, vec)
Vector iterator.
u8 * string
Definition: log.h:44
int unthrottle_time
Definition: log.h:81
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:171