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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 typedef struct
22 {
28 
29 typedef struct
30 {
32  u8 *name;
33  // level of log messages kept for this subclass
35  // level of log messages sent to syslog for this subclass
37  // flag saying whether this subclass is logged to syslog
43 
44 typedef struct
45 {
47  u8 *name;
50 
51 typedef struct
52 {
55  int size, next, count;
56 
57  /* our own log class */
59 
65 
66  /* time zero */
67  struct timeval time_zero_timeval;
69 
71 
72 vlib_log_main_t log_main = {
73  .default_log_level = VLIB_LOG_LEVEL_NOTICE,
74  .default_syslog_log_level = VLIB_LOG_LEVEL_WARNING,
75  .unthrottle_time = 3,
76  .size = 512,
77  .default_rate_limit = 50,
78 };
79 
80 static int
82 {
84  int i;
85 
86  i = lm->next - lm->count;
87 
88  if (i < 0)
89  i += lm->size;
90  return i;
91 }
92 
93 static vlib_log_class_data_t *
95 {
97  return vec_elt_at_index (lm->classes, (ci >> 16));
98 }
99 
102 {
104  return vec_elt_at_index (c->subclasses, (ci & 0xffff));
105 }
106 
107 static int
109 {
110  switch (level)
111  {
112 #define LOG_DISABLED LOG_DEBUG
113 #define _(n,uc,lc) \
114  case VLIB_LOG_LEVEL_##uc:\
115  return LOG_##uc;
117 #undef _
118 #undef LOG_DISABLED
119  }
120  return LOG_DEBUG;
121 }
122 
123 u8 *
124 format_vlib_log_class (u8 * s, va_list * args)
125 {
126  vlib_log_class_t ci = va_arg (*args, vlib_log_class_t);
129 
130  if (sc->name)
131  return format (s, "%v/%v", c->name, sc->name);
132  else
133  return format (s, "%v", c->name, 0);
134 }
135 
136 
137 void
138 vlib_log (vlib_log_level_t level, vlib_log_class_t class, char *fmt, ...)
139 {
141  vlib_log_main_t *lm = &log_main;
142  vlib_log_entry_t *e;
144  va_list va;
145  f64 t = vlib_time_now (vm);
146  f64 delta = t - sc->last_event_timestamp;
147  u8 *s = 0;
148  bool use_formatted_log_entry = true;
149 
150  vec_validate (lm->entries, lm->size);
151  /* make sure we are running on the main thread to avoid use in dataplane
152  code, for dataplane logging consider use of event-logger */
153  ASSERT (vlib_get_thread_index () == 0);
154 
155  if (level > sc->level)
156  {
157  use_formatted_log_entry = false;
158  goto syslog;
159  }
160 
161  if ((delta > lm->unthrottle_time) ||
162  (sc->is_throttling == 0 && (delta > 1)))
163  {
164  sc->last_event_timestamp = t;
165  sc->last_sec_count = 0;
166  sc->is_throttling = 0;
167  }
168  else
169  {
170  sc->last_sec_count++;
171  if (sc->last_sec_count > sc->rate_limit)
172  return;
173  else if (sc->last_sec_count == sc->rate_limit)
174  {
175  vec_reset_length (s);
176  s = format (0, "--- message(s) throttled ---");
177  sc->is_throttling = 1;
178  }
179  }
180 
181  if (s == 0)
182  {
183  va_start (va, fmt);
184  s = va_format (s, fmt, &va);
185  va_end (va);
186  }
187 
188  e = vec_elt_at_index (lm->entries, lm->next);
189  vec_free (e->string);
190  e->level = level;
191  e->class = class;
192  e->string = s;
193  e->timestamp = t;
194 
195  lm->next = (lm->next + 1) % lm->size;
196  if (lm->size > lm->count)
197  lm->count++;
198 
199 syslog:
200  if (sc->syslog_level != VLIB_LOG_LEVEL_DISABLED &&
201  level <= sc->syslog_level)
202  {
203  u8 *tmp = format (NULL, "%U", format_vlib_log_class, class);
204  if (use_formatted_log_entry)
205  {
206  syslog (vlib_log_level_to_syslog_priority (level), "%.*s: %.*s",
207  (int) vec_len (tmp), tmp,
208  (int) (vec_len (s) -
209  (vec_c_string_is_terminated (s) ? 1 : 0)), s);
210  }
211  else
212  {
213  tmp = format (tmp, ": ");
214  va_start (va, fmt);
215  tmp = va_format (tmp, fmt, &va);
216  va_end (va);
217  syslog (vlib_log_level_to_syslog_priority (level), "%.*s",
218  (int) (vec_len (tmp) -
219  (vec_c_string_is_terminated (tmp) ? 1 : 0)), tmp);
220  }
221  vec_free (tmp);
222  }
223 
224 }
225 
227 vlib_log_register_class (char *class, char *subclass)
228 {
229  vlib_log_main_t *lm = &log_main;
233  vec_foreach (tmp, lm->classes)
234  {
235  if (!memcmp (class, tmp->name, vec_len (tmp->name)))
236  {
237  c = tmp;
238  break;
239  }
240  }
241  if (!c)
242  {
243  vec_add2 (lm->classes, c, 1);
244  c->index = c - lm->classes;
245  c->name = format (0, "%s", class);
246  }
247 
248  vec_add2 (c->subclasses, s, 1);
249  s->index = s - c->subclasses;
250  s->name = subclass ? format (0, "%s", subclass) : 0;
252  s->level = lm->default_log_level;
254  return (c->index << 16) | (s->index);
255 }
256 
257 u8 *
258 format_vlib_log_level (u8 * s, va_list * args)
259 {
260  vlib_log_level_t i = va_arg (*args, vlib_log_level_t);
261  char *t = 0;
262 
263  switch (i)
264  {
265 #define _(v,uc,lc) case VLIB_LOG_LEVEL_##uc: t = #lc; break;
267 #undef _
268  default:
269  return format (s, "unknown");
270  }
271  return format (s, "%s", t);
272 }
273 
274 u32
276 {
277  return log_main.indent;
278 }
279 
280 static clib_error_t *
282 {
283  vlib_log_main_t *lm = &log_main;
284 
285  gettimeofday (&lm->time_zero_timeval, 0);
286  lm->time_zero = vlib_time_now (vm);
287 
288  vec_validate (lm->entries, lm->size);
289  lm->log_class = vlib_log_register_class ("log", 0);
290  u8 *tmp = format (NULL, "%U %-10U %-10U ", format_time_float, 0, (f64) 0,
292  log_main.indent = vec_len (tmp);
293  vec_free (tmp);
294  return 0;
295 }
296 
298 
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;
306  vlib_log_entry_t *e;
307  int i = last_log_entry ();
308  int count = lm->count;
309  f64 time_offset;
310 
311  time_offset = (f64) lm->time_zero_timeval.tv_sec
312  + (((f64) lm->time_zero_timeval.tv_usec) * 1e-6) - lm->time_zero;
313 
314  while (count--)
315  {
316  e = vec_elt_at_index (lm->entries, i);
317  vlib_cli_output (vm, "%U %-10U %-10U %v",
318  format_time_float, 0, e->timestamp + time_offset,
321  i = (i + 1) % lm->size;
322  }
323 
324  return error;
325 }
326 
327 /* *INDENT-OFF* */
328 VLIB_CLI_COMMAND (cli_show_log, static) = {
329  .path = "show logging",
330  .short_help = "show logging",
331  .function = show_log,
332 };
333 /* *INDENT-ON* */
334 
335 static clib_error_t *
337  unformat_input_t * input, vlib_cli_command_t * cmd)
338 {
339  clib_error_t *error = 0;
340  vlib_log_main_t *lm = &log_main;
343 
344  vlib_cli_output (vm, "%-20s %u entries", "Buffer Size:", lm->size);
345  vlib_cli_output (vm, "Defaults:\n");
346  vlib_cli_output (vm, "%-20s %U", " Log Level:",
348  vlib_cli_output (vm, "%-20s %U", " Syslog Log Level:",
350  vlib_cli_output (vm, "%-20s %u msgs/sec", " Rate Limit:",
351  lm->default_rate_limit);
352  vlib_cli_output (vm, "\n");
353  vlib_cli_output (vm, "%-22s %-14s %-14s %s",
354  "Class/Subclass", "Level", "Syslog Level", "Rate Limit");
355 
356 
357  u8 *defstr = format (0, "default");
358  vec_foreach (c, lm->classes)
359  {
360  vlib_cli_output (vm, "%v", c->name);
361  vec_foreach (sc, c->subclasses)
362  {
363  vlib_cli_output (vm, " %-20v %-14U %-14U %d",
364  sc->name ? sc->name : defstr,
367  sc->rate_limit);
368  }
369  }
370  vec_free (defstr);
371 
372  return error;
373 }
374 
375 /* *INDENT-OFF* */
376 VLIB_CLI_COMMAND (cli_show_log_config, static) = {
377  .path = "show logging configuration",
378  .short_help = "show logging configuration",
379  .function = show_log_config,
380 };
381 /* *INDENT-ON* */
382 
383 static clib_error_t *
385  unformat_input_t * input, vlib_cli_command_t * cmd)
386 {
387  clib_error_t *error = 0;
388  vlib_log_main_t *lm = &log_main;
389  vlib_log_entry_t *e;
390  int i = last_log_entry ();
391  int count = lm->count;
392 
393  while (count--)
394  {
395  e = vec_elt_at_index (lm->entries, i);
396  vec_free (e->string);
397  i = (i + 1) % lm->size;
398  }
399 
400  lm->count = 0;
401  lm->next = 0;
402  vlib_log_info (lm->log_class, "log cleared");
403  return error;
404 }
405 
406 /* *INDENT-OFF* */
407 VLIB_CLI_COMMAND (cli_clear_log, static) = {
408  .path = "clear logging",
409  .short_help = "clear logging",
410  .function = clear_log,
411 };
412 /* *INDENT-ON* */
413 
414 static uword
415 unformat_vlib_log_level (unformat_input_t * input, va_list * args)
416 {
417  vlib_log_level_t *level = va_arg (*args, vlib_log_level_t *);
418  u8 *level_str = NULL;
419  uword rv = 1;
420  if (unformat (input, "%s", &level_str))
421  {
422 #define _(v, uc, lc) \
423  const char __##uc[] = #lc; \
424  if (!strcmp ((const char *) level_str, __##uc)) \
425  { \
426  *level = VLIB_LOG_LEVEL_##uc; \
427  rv = 1; \
428  goto done; \
429  }
431  rv = 0;
432 #undef _
433  }
434 done:
435  vec_free (level_str);
436  return rv;
437 }
438 
439 static uword
440 unformat_vlib_log_class (unformat_input_t * input, va_list * args)
441 {
442  vlib_log_class_data_t **class = va_arg (*args, vlib_log_class_data_t **);
443  uword rv = 0;
444  u8 *class_str = NULL;
445  vlib_log_main_t *lm = &log_main;
446  if (unformat (input, "%v", &class_str))
447  {
448  vlib_log_class_data_t *cdata;
449  vec_foreach (cdata, lm->classes)
450  {
451  if (vec_is_equal (cdata->name, class_str))
452  {
453  *class = cdata;
454  rv = 1;
455  break;
456  }
457  }
458  }
459  vec_free (class_str);
460  return rv;
461 }
462 
463 static clib_error_t *
465  unformat_input_t * input, vlib_cli_command_t * cmd)
466 {
467  unformat_input_t _line_input, *line_input = &_line_input;
468  clib_error_t *rv = NULL;
469  int rate_limit;
470  bool set_rate_limit = false;
471  bool set_level = false;
472  bool set_syslog_level = false;
473  vlib_log_level_t level;
474  vlib_log_level_t syslog_level;
475 
476  /* Get a line of input. */
477  if (!unformat_user (input, unformat_line_input, line_input))
478  return 0;
479 
480  vlib_log_class_data_t *class = NULL;
481  if (!unformat (line_input, "%U", unformat_vlib_log_class, &class))
482  {
483  return clib_error_return (0, "unknown log class `%U'",
484  format_unformat_error, line_input);
485  }
486  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
487  {
488  if (unformat (line_input, "rate-limit %d", &rate_limit))
489  {
490  set_rate_limit = true;
491  }
492  else
493  if (unformat
494  (line_input, "level %U", unformat_vlib_log_level, &level))
495  {
496  set_level = true;
497  }
498  else
499  if (unformat
500  (line_input, "syslog-level %U", unformat_vlib_log_level,
501  &syslog_level))
502  {
503  set_syslog_level = true;
504  }
505  else
506  {
507  return clib_error_return (0, "unknown input `%U'",
508  format_unformat_error, line_input);
509  }
510  }
511 
512  if (set_level)
513  {
514  vlib_log_subclass_data_t *subclass;
515  vec_foreach (subclass, class->subclasses)
516  {
517  subclass->level = level;
518  }
519  }
520  if (set_syslog_level)
521  {
522  vlib_log_subclass_data_t *subclass;
523  vec_foreach (subclass, class->subclasses)
524  {
525  subclass->syslog_level = syslog_level;
526  }
527  }
528  if (set_rate_limit)
529  {
530  vlib_log_subclass_data_t *subclass;
531  vec_foreach (subclass, class->subclasses)
532  {
533  subclass->rate_limit = rate_limit;
534  }
535  }
536 
537  return rv;
538 }
539 
540 /* *INDENT-OFF* */
541 VLIB_CLI_COMMAND (cli_set_log, static) = {
542  .path = "set logging class",
543  .short_help = "set loggging class <class> [rate-limit <int>] "
544  "[level <level>] [syslog-level <level>]",
545  .function = set_log_class,
546 };
547 /* *INDENT-ON* */
548 
549 static clib_error_t *
551  unformat_input_t * input, vlib_cli_command_t * cmd)
552 {
553  unformat_input_t _line_input, *line_input = &_line_input;
554  clib_error_t *rv = NULL;
555  int unthrottle_time;
556  vlib_log_main_t *lm = &log_main;
557 
558  /* Get a line of input. */
559  if (!unformat_user (input, unformat_line_input, line_input))
560  return 0;
561 
562  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
563  {
564  if (unformat (line_input, "%d", &unthrottle_time))
565  lm->unthrottle_time = unthrottle_time;
566  else
567  return clib_error_return (0, "unknown input `%U'",
568  format_unformat_error, line_input);
569  }
570 
571  return rv;
572 }
573 
574 /* *INDENT-OFF* */
575 VLIB_CLI_COMMAND (cli_set_log_params, static) = {
576  .path = "set logging unthrottle-time",
577  .short_help = "set logging unthrottle-time <int>",
578  .function = set_log_unth_time,
579 };
580 /* *INDENT-ON* */
581 
582 static clib_error_t *
584  unformat_input_t * input, vlib_cli_command_t * cmd)
585 {
586  unformat_input_t _line_input, *line_input = &_line_input;
587  clib_error_t *rv = NULL;
588  int size;
589  vlib_log_main_t *lm = &log_main;
590 
591  /* Get a line of input. */
592  if (!unformat_user (input, unformat_line_input, line_input))
593  return 0;
594 
595  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
596  {
597  if (unformat (line_input, "%d", &size))
598  {
599  lm->size = size;
600  vec_validate (lm->entries, lm->size);
601  }
602  else
603  return clib_error_return (0, "unknown input `%U'",
604  format_unformat_error, line_input);
605  }
606 
607  return rv;
608 }
609 
610 /* *INDENT-OFF* */
611 VLIB_CLI_COMMAND (cli_set_log_size, static) = {
612  .path = "set logging size",
613  .short_help = "set logging size <int>",
614  .function = set_log_size,
615 };
616 /* *INDENT-ON* */
617 
618 static uword
620 {
621  vlib_log_class_data_t *class = va_arg (*args, vlib_log_class_data_t *);
622  vlib_log_subclass_data_t **subclass =
623  va_arg (*args, vlib_log_subclass_data_t **);
624  uword rv = 0;
625  u8 *subclass_str = NULL;
626  if (unformat (input, "%v", &subclass_str))
627  {
628  vlib_log_subclass_data_t *scdata;
629  vec_foreach (scdata, class->subclasses)
630  {
631  if (vec_is_equal (scdata->name, subclass_str))
632  {
633  rv = 1;
634  *subclass = scdata;
635  break;
636  }
637  }
638  }
639  vec_free (subclass_str);
640  return rv;
641 }
642 
643 static clib_error_t *
645  unformat_input_t * input, vlib_cli_command_t * cmd)
646 {
647  unformat_input_t _line_input, *line_input = &_line_input;
648  /* Get a line of input. */
649  if (!unformat_user (input, unformat_line_input, line_input))
650  return 0;
651 
652  vlib_log_class_data_t *class = NULL;
653  vlib_log_subclass_data_t *subclass = NULL;
654  vlib_log_level_t level;
655  if (unformat (line_input, "%U", unformat_vlib_log_level, &level))
656  {
657  if (unformat (line_input, "%U", unformat_vlib_log_class, &class))
658  {
659  if (unformat
660  (line_input, "%U", unformat_vlib_log_subclass, class,
661  &subclass))
662  {
663  vlib_log (level,
664  (class->index << 16) | (subclass->index), "%U",
665  format_unformat_input, line_input);
666  }
667  else
668  {
669  return clib_error_return (0,
670  "unknown log subclass near beginning of `%U'",
671  format_unformat_error, line_input);
672  }
673  }
674  else
675  {
676  return clib_error_return (0,
677  "unknown log class near beginning of `%U'",
678  format_unformat_error, line_input);
679  }
680  }
681  else
682  {
683  return clib_error_return (0, "unknown log level near beginning of `%U'",
684  format_unformat_error, line_input);
685  }
686  return 0;
687 }
688 
689 /* *INDENT-OFF* */
690 VLIB_CLI_COMMAND (cli_test_log, static) = {
691  .path = "test log",
692  .short_help = "test log <class> <subclass> <level> <message",
693  .function = test_log_class_subclass,
694 };
695 /* *INDENT-ON* */
696 
697 static clib_error_t *
699 {
700  vlib_log_main_t *lm = &log_main;
701 
703  {
704  if (unformat (input, "size %d", &lm->size))
705  vec_validate (lm->entries, lm->size);
706  else if (unformat (input, "unthrottle-time %d", &lm->unthrottle_time))
707  ;
708  else if (unformat (input, "default-log-level %U",
710  ;
711  else if (unformat (input, "default-syslog-log-level %U",
714  ;
715  else
716  {
717  return unformat_parse_error (input);
718  }
719  }
720 
721  return 0;
722 }
723 
725 
726 /*
727  * fd.io coding-style-patch-verification: ON
728  *
729  * Local Variables:
730  * eval: (c-set-style "gnu")
731  * End:
732  */
vlib_log_class_t vlib_log_register_class(char *class, char *subclass)
Definition: log.c:227
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:437
static clib_error_t * show_log_config(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:336
static clib_error_t * show_log(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:301
u32 vlib_log_class_t
Definition: log.h:21
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:1008
u8 * format_vlib_log_level(u8 *s, va_list *args)
Definition: log.c:258
vlib_log_entry_t * entries
Definition: log.c:53
vlib_log_level_t level
Definition: log.c:34
static vlib_log_class_data_t * get_class_data(vlib_log_class_t ci)
Definition: log.c:94
#define NULL
Definition: clib.h:57
vlib_log_level_t syslog_level
Definition: log.c:36
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:227
static clib_error_t * clear_log(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:384
vlib_log_class_data_t * classes
Definition: log.c:54
#define vec_add2(V, P, N)
Add N elements to end of vector V, return pointer to new elements in P.
Definition: vec.h:562
int i
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:983
f64 timestamp
Definition: log.c:25
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
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:619
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
double f64
Definition: types.h:142
u32 indent
Definition: log.c:64
static clib_error_t * vlib_log_init(vlib_main_t *vm)
Definition: log.c:281
static clib_error_t * log_config(vlib_main_t *vm, unformat_input_t *input)
Definition: log.c:698
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
struct timeval time_zero_timeval
Definition: log.c:67
u8 * format_white_space(u8 *s, va_list *va)
Definition: std-formats.c:113
#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
unsigned int u32
Definition: types.h:88
int default_log_level
Definition: log.c:61
unformat_function_t unformat_line_input
Definition: format.h:282
vlib_log_class_t log_class
Definition: log.c:58
uword size
static int vlib_log_level_to_syslog_priority(vlib_log_level_t level)
Definition: log.c:108
static clib_error_t * set_log_class(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:464
struct _unformat_input_t unformat_input_t
int default_syslog_log_level
Definition: log.c:62
int size
Definition: log.c:55
static clib_error_t * set_log_unth_time(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:550
vlib_log_main_t log_main
Definition: log.c:72
static clib_error_t * test_log_class_subclass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: log.c:644
int next
Definition: log.c:55
u8 * format_unformat_input(u8 *s, va_list *va)
Definition: unformat.c:143
#define VLIB_EARLY_CONFIG_FUNCTION(x, n,...)
Definition: init.h:216
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
svmdb_client_t * c
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:211
vlib_main_t * vm
Definition: buffer.c:294
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:339
void vlib_log(vlib_log_level_t level, vlib_log_class_t class, char *fmt,...)
Definition: log.c:138
static vlib_log_subclass_data_t * get_subclass_data(vlib_log_class_t ci)
Definition: log.c:101
vlib_log_subclass_data_t * subclasses
Definition: log.c:48
#define vec_is_equal(v1, v2)
Compare two vectors, not NULL-pointer tolerant.
Definition: vec.h:911
int default_rate_limit
Definition: log.c:60
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
Definition: log.c:21
#define ASSERT(truth)
vlib_log_class_t class
Definition: log.c:24
u32 vlib_log_get_indent()
Definition: log.c:275
int count
Definition: log.c:55
vlib_log_level_t
Definition: log.h:34
static uword unformat_vlib_log_class(unformat_input_t *input, va_list *args)
Definition: log.c:440
static uword unformat_vlib_log_level(unformat_input_t *input, va_list *args)
Definition: log.c:415
size_t count
Definition: vapi.c:46
vlib_log_level_t level
Definition: log.c:23
f64 time_zero
Definition: log.c:68
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
#define unformat_parse_error(input)
Definition: format.h:268
static int last_log_entry()
Definition: log.c:81
u8 * format_vlib_log_class(u8 *s, va_list *args)
Definition: log.c:124
#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:583
#define vlib_log_info(...)
Definition: log.h:53
u64 uword
Definition: types.h:112
f64 last_event_timestamp
Definition: log.c:38
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
#define vec_foreach(var, vec)
Vector iterator.
u8 * string
Definition: log.c:26
int unthrottle_time
Definition: log.c:63
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:725
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170