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x86, MCA: Convert the next three variables batch
[linux-2.6.git] / tools / lib / traceevent / event-parse.h
blob24a4bbabc5d550c5c3a09113a8277f37ad1182b4
1 /*
2 * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
3 *
4 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation;
8 * version 2.1 of the License (not later!)
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20 */
21 #ifndef _PARSE_EVENTS_H
22 #define _PARSE_EVENTS_H
23
24 #include <stdarg.h>
25 #include <regex.h>
26
27 #ifndef __maybe_unused
28 #define __maybe_unused __attribute__((unused))
29 #endif
30
31 /* ----------------------- trace_seq ----------------------- */
32
33
34 #ifndef TRACE_SEQ_BUF_SIZE
35 #define TRACE_SEQ_BUF_SIZE 4096
36 #endif
37
38 #ifndef DEBUG_RECORD
39 #define DEBUG_RECORD 0
40 #endif
41
42 struct pevent_record {
43 unsigned long long ts;
44 unsigned long long offset;
45 long long missed_events; /* buffer dropped events before */
46 int record_size; /* size of binary record */
47 int size; /* size of data */
48 void *data;
49 int cpu;
50 int ref_count;
51 int locked; /* Do not free, even if ref_count is zero */
52 void *priv;
53 #if DEBUG_RECORD
54 struct pevent_record *prev;
55 struct pevent_record *next;
56 long alloc_addr;
57 #endif
58 };
59
60 /*
61 * Trace sequences are used to allow a function to call several other functions
62 * to create a string of data to use (up to a max of PAGE_SIZE).
63 */
64
65 struct trace_seq {
66 char *buffer;
67 unsigned int buffer_size;
68 unsigned int len;
69 unsigned int readpos;
70 };
71
72 void trace_seq_init(struct trace_seq *s);
73 void trace_seq_destroy(struct trace_seq *s);
74
75 extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
76 __attribute__ ((format (printf, 2, 3)));
77 extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args)
78 __attribute__ ((format (printf, 2, 0)));
79
80 extern int trace_seq_puts(struct trace_seq *s, const char *str);
81 extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
82
83 extern void trace_seq_terminate(struct trace_seq *s);
84
85 extern int trace_seq_do_printf(struct trace_seq *s);
86
87
88 /* ----------------------- pevent ----------------------- */
89
90 struct pevent;
91 struct event_format;
92
93 typedef int (*pevent_event_handler_func)(struct trace_seq *s,
94 struct pevent_record *record,
95 struct event_format *event,
96 void *context);
97
98 typedef int (*pevent_plugin_load_func)(struct pevent *pevent);
99 typedef int (*pevent_plugin_unload_func)(void);
100
101 struct plugin_option {
102 struct plugin_option *next;
103 void *handle;
104 char *file;
105 char *name;
106 char *plugin_alias;
107 char *description;
108 char *value;
109 void *priv;
110 int set;
111 };
112
113 /*
114 * Plugin hooks that can be called:
115 *
116 * PEVENT_PLUGIN_LOADER: (required)
117 * The function name to initialized the plugin.
118 *
119 * int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
120 *
121 * PEVENT_PLUGIN_UNLOADER: (optional)
122 * The function called just before unloading
123 *
124 * int PEVENT_PLUGIN_UNLOADER(void)
125 *
126 * PEVENT_PLUGIN_OPTIONS: (optional)
127 * Plugin options that can be set before loading
128 *
129 * struct plugin_option PEVENT_PLUGIN_OPTIONS[] = {
130 * {
131 * .name = "option-name",
132 * .plugin_alias = "overide-file-name", (optional)
133 * .description = "description of option to show users",
134 * },
135 * {
136 * .name = NULL,
137 * },
138 * };
139 *
140 * Array must end with .name = NULL;
141 *
142 *
143 * .plugin_alias is used to give a shorter name to access
144 * the vairable. Useful if a plugin handles more than one event.
145 *
146 * PEVENT_PLUGIN_ALIAS: (optional)
147 * The name to use for finding options (uses filename if not defined)
148 */
149 #define PEVENT_PLUGIN_LOADER pevent_plugin_loader
150 #define PEVENT_PLUGIN_UNLOADER pevent_plugin_unloader
151 #define PEVENT_PLUGIN_OPTIONS pevent_plugin_options
152 #define PEVENT_PLUGIN_ALIAS pevent_plugin_alias
153 #define _MAKE_STR(x) #x
154 #define MAKE_STR(x) _MAKE_STR(x)
155 #define PEVENT_PLUGIN_LOADER_NAME MAKE_STR(PEVENT_PLUGIN_LOADER)
156 #define PEVENT_PLUGIN_UNLOADER_NAME MAKE_STR(PEVENT_PLUGIN_UNLOADER)
157 #define PEVENT_PLUGIN_OPTIONS_NAME MAKE_STR(PEVENT_PLUGIN_OPTIONS)
158 #define PEVENT_PLUGIN_ALIAS_NAME MAKE_STR(PEVENT_PLUGIN_ALIAS)
159
160 #define NSECS_PER_SEC 1000000000ULL
161 #define NSECS_PER_USEC 1000ULL
162
163 enum format_flags {
164 FIELD_IS_ARRAY = 1,
165 FIELD_IS_POINTER = 2,
166 FIELD_IS_SIGNED = 4,
167 FIELD_IS_STRING = 8,
168 FIELD_IS_DYNAMIC = 16,
169 FIELD_IS_LONG = 32,
170 FIELD_IS_FLAG = 64,
171 FIELD_IS_SYMBOLIC = 128,
172 };
173
174 struct format_field {
175 struct format_field *next;
176 struct event_format *event;
177 char *type;
178 char *name;
179 int offset;
180 int size;
181 unsigned int arraylen;
182 unsigned int elementsize;
183 unsigned long flags;
184 };
185
186 struct format {
187 int nr_common;
188 int nr_fields;
189 struct format_field *common_fields;
190 struct format_field *fields;
191 };
192
193 struct print_arg_atom {
194 char *atom;
195 };
196
197 struct print_arg_string {
198 char *string;
199 int offset;
200 };
201
202 struct print_arg_field {
203 char *name;
204 struct format_field *field;
205 };
206
207 struct print_flag_sym {
208 struct print_flag_sym *next;
209 char *value;
210 char *str;
211 };
212
213 struct print_arg_typecast {
214 char *type;
215 struct print_arg *item;
216 };
217
218 struct print_arg_flags {
219 struct print_arg *field;
220 char *delim;
221 struct print_flag_sym *flags;
222 };
223
224 struct print_arg_symbol {
225 struct print_arg *field;
226 struct print_flag_sym *symbols;
227 };
228
229 struct print_arg_hex {
230 struct print_arg *field;
231 struct print_arg *size;
232 };
233
234 struct print_arg_dynarray {
235 struct format_field *field;
236 struct print_arg *index;
237 };
238
239 struct print_arg;
240
241 struct print_arg_op {
242 char *op;
243 int prio;
244 struct print_arg *left;
245 struct print_arg *right;
246 };
247
248 struct pevent_function_handler;
249
250 struct print_arg_func {
251 struct pevent_function_handler *func;
252 struct print_arg *args;
253 };
254
255 enum print_arg_type {
256 PRINT_NULL,
257 PRINT_ATOM,
258 PRINT_FIELD,
259 PRINT_FLAGS,
260 PRINT_SYMBOL,
261 PRINT_HEX,
262 PRINT_TYPE,
263 PRINT_STRING,
264 PRINT_BSTRING,
265 PRINT_DYNAMIC_ARRAY,
266 PRINT_OP,
267 PRINT_FUNC,
268 };
269
270 struct print_arg {
271 struct print_arg *next;
272 enum print_arg_type type;
273 union {
274 struct print_arg_atom atom;
275 struct print_arg_field field;
276 struct print_arg_typecast typecast;
277 struct print_arg_flags flags;
278 struct print_arg_symbol symbol;
279 struct print_arg_hex hex;
280 struct print_arg_func func;
281 struct print_arg_string string;
282 struct print_arg_op op;
283 struct print_arg_dynarray dynarray;
284 };
285 };
286
287 struct print_fmt {
288 char *format;
289 struct print_arg *args;
290 };
291
292 struct event_format {
293 struct pevent *pevent;
294 char *name;
295 int id;
296 int flags;
297 struct format format;
298 struct print_fmt print_fmt;
299 char *system;
300 pevent_event_handler_func handler;
301 void *context;
302 };
303
304 enum {
305 EVENT_FL_ISFTRACE = 0x01,
306 EVENT_FL_ISPRINT = 0x02,
307 EVENT_FL_ISBPRINT = 0x04,
308 EVENT_FL_ISFUNCENT = 0x10,
309 EVENT_FL_ISFUNCRET = 0x20,
310
311 EVENT_FL_FAILED = 0x80000000
312 };
313
314 enum event_sort_type {
315 EVENT_SORT_ID,
316 EVENT_SORT_NAME,
317 EVENT_SORT_SYSTEM,
318 };
319
320 enum event_type {
321 EVENT_ERROR,
322 EVENT_NONE,
323 EVENT_SPACE,
324 EVENT_NEWLINE,
325 EVENT_OP,
326 EVENT_DELIM,
327 EVENT_ITEM,
328 EVENT_DQUOTE,
329 EVENT_SQUOTE,
330 };
331
332 typedef unsigned long long (*pevent_func_handler)(struct trace_seq *s,
333 unsigned long long *args);
334
335 enum pevent_func_arg_type {
336 PEVENT_FUNC_ARG_VOID,
337 PEVENT_FUNC_ARG_INT,
338 PEVENT_FUNC_ARG_LONG,
339 PEVENT_FUNC_ARG_STRING,
340 PEVENT_FUNC_ARG_PTR,
341 PEVENT_FUNC_ARG_MAX_TYPES
342 };
343
344 enum pevent_flag {
345 PEVENT_NSEC_OUTPUT = 1, /* output in NSECS */
346 };
347
348 #define PEVENT_ERRORS \
349 _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \
350 _PE(PARSE_EVENT_FAILED, "failed to parse event"), \
351 _PE(READ_ID_FAILED, "failed to read event id"), \
352 _PE(READ_FORMAT_FAILED, "failed to read event format"), \
353 _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \
354 _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\
355 _PE(INVALID_ARG_TYPE, "invalid argument type")
356
357 #undef _PE
358 #define _PE(__code, __str) PEVENT_ERRNO__ ## __code
359 enum pevent_errno {
360 PEVENT_ERRNO__SUCCESS = 0,
361
362 /*
363 * Choose an arbitrary negative big number not to clash with standard
364 * errno since SUS requires the errno has distinct positive values.
365 * See 'Issue 6' in the link below.
366 *
367 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
368 */
369 __PEVENT_ERRNO__START = -100000,
370
371 PEVENT_ERRORS,
372
373 __PEVENT_ERRNO__END,
374 };
375 #undef _PE
376
377 struct cmdline;
378 struct cmdline_list;
379 struct func_map;
380 struct func_list;
381 struct event_handler;
382
383 struct pevent {
384 int ref_count;
385
386 int header_page_ts_offset;
387 int header_page_ts_size;
388 int header_page_size_offset;
389 int header_page_size_size;
390 int header_page_data_offset;
391 int header_page_data_size;
392 int header_page_overwrite;
393
394 int file_bigendian;
395 int host_bigendian;
396
397 int latency_format;
398
399 int old_format;
400
401 int cpus;
402 int long_size;
403
404 struct cmdline *cmdlines;
405 struct cmdline_list *cmdlist;
406 int cmdline_count;
407
408 struct func_map *func_map;
409 struct func_list *funclist;
410 unsigned int func_count;
411
412 struct printk_map *printk_map;
413 struct printk_list *printklist;
414 unsigned int printk_count;
415
416
417 struct event_format **events;
418 int nr_events;
419 struct event_format **sort_events;
420 enum event_sort_type last_type;
421
422 int type_offset;
423 int type_size;
424
425 int pid_offset;
426 int pid_size;
427
428 int pc_offset;
429 int pc_size;
430
431 int flags_offset;
432 int flags_size;
433
434 int ld_offset;
435 int ld_size;
436
437 int print_raw;
438
439 int test_filters;
440
441 int flags;
442
443 struct format_field *bprint_ip_field;
444 struct format_field *bprint_fmt_field;
445 struct format_field *bprint_buf_field;
446
447 struct event_handler *handlers;
448 struct pevent_function_handler *func_handlers;
449
450 /* cache */
451 struct event_format *last_event;
452 };
453
454 static inline void pevent_set_flag(struct pevent *pevent, int flag)
455 {
456 pevent->flags |= flag;
457 }
458
459 static inline unsigned short
460 __data2host2(struct pevent *pevent, unsigned short data)
461 {
462 unsigned short swap;
463
464 if (pevent->host_bigendian == pevent->file_bigendian)
465 return data;
466
467 swap = ((data & 0xffULL) << 8) |
468 ((data & (0xffULL << 8)) >> 8);
469
470 return swap;
471 }
472
473 static inline unsigned int
474 __data2host4(struct pevent *pevent, unsigned int data)
475 {
476 unsigned int swap;
477
478 if (pevent->host_bigendian == pevent->file_bigendian)
479 return data;
480
481 swap = ((data & 0xffULL) << 24) |
482 ((data & (0xffULL << 8)) << 8) |
483 ((data & (0xffULL << 16)) >> 8) |
484 ((data & (0xffULL << 24)) >> 24);
485
486 return swap;
487 }
488
489 static inline unsigned long long
490 __data2host8(struct pevent *pevent, unsigned long long data)
491 {
492 unsigned long long swap;
493
494 if (pevent->host_bigendian == pevent->file_bigendian)
495 return data;
496
497 swap = ((data & 0xffULL) << 56) |
498 ((data & (0xffULL << 8)) << 40) |
499 ((data & (0xffULL << 16)) << 24) |
500 ((data & (0xffULL << 24)) << 8) |
501 ((data & (0xffULL << 32)) >> 8) |
502 ((data & (0xffULL << 40)) >> 24) |
503 ((data & (0xffULL << 48)) >> 40) |
504 ((data & (0xffULL << 56)) >> 56);
505
506 return swap;
507 }
508
509 #define data2host2(pevent, ptr) __data2host2(pevent, *(unsigned short *)(ptr))
510 #define data2host4(pevent, ptr) __data2host4(pevent, *(unsigned int *)(ptr))
511 #define data2host8(pevent, ptr) \
512 ({ \
513 unsigned long long __val; \
514 \
515 memcpy(&__val, (ptr), sizeof(unsigned long long)); \
516 __data2host8(pevent, __val); \
517 })
518
519 /* taken from kernel/trace/trace.h */
520 enum trace_flag_type {
521 TRACE_FLAG_IRQS_OFF = 0x01,
522 TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
523 TRACE_FLAG_NEED_RESCHED = 0x04,
524 TRACE_FLAG_HARDIRQ = 0x08,
525 TRACE_FLAG_SOFTIRQ = 0x10,
526 };
527
528 int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
529 int pevent_register_function(struct pevent *pevent, char *name,
530 unsigned long long addr, char *mod);
531 int pevent_register_print_string(struct pevent *pevent, char *fmt,
532 unsigned long long addr);
533 int pevent_pid_is_registered(struct pevent *pevent, int pid);
534
535 void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
536 struct pevent_record *record);
537
538 int pevent_parse_header_page(struct pevent *pevent, char *buf, unsigned long size,
539 int long_size);
540
541 enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
542 unsigned long size, const char *sys);
543 enum pevent_errno pevent_parse_format(struct event_format **eventp, const char *buf,
544 unsigned long size, const char *sys);
545 void pevent_free_format(struct event_format *event);
546
547 void *pevent_get_field_raw(struct trace_seq *s, struct event_format *event,
548 const char *name, struct pevent_record *record,
549 int *len, int err);
550
551 int pevent_get_field_val(struct trace_seq *s, struct event_format *event,
552 const char *name, struct pevent_record *record,
553 unsigned long long *val, int err);
554 int pevent_get_common_field_val(struct trace_seq *s, struct event_format *event,
555 const char *name, struct pevent_record *record,
556 unsigned long long *val, int err);
557 int pevent_get_any_field_val(struct trace_seq *s, struct event_format *event,
558 const char *name, struct pevent_record *record,
559 unsigned long long *val, int err);
560
561 int pevent_print_num_field(struct trace_seq *s, const char *fmt,
562 struct event_format *event, const char *name,
563 struct pevent_record *record, int err);
564
565 int pevent_register_event_handler(struct pevent *pevent, int id, char *sys_name, char *event_name,
566 pevent_event_handler_func func, void *context);
567 int pevent_register_print_function(struct pevent *pevent,
568 pevent_func_handler func,
569 enum pevent_func_arg_type ret_type,
570 char *name, ...);
571
572 struct format_field *pevent_find_common_field(struct event_format *event, const char *name);
573 struct format_field *pevent_find_field(struct event_format *event, const char *name);
574 struct format_field *pevent_find_any_field(struct event_format *event, const char *name);
575
576 const char *pevent_find_function(struct pevent *pevent, unsigned long long addr);
577 unsigned long long
578 pevent_find_function_address(struct pevent *pevent, unsigned long long addr);
579 unsigned long long pevent_read_number(struct pevent *pevent, const void *ptr, int size);
580 int pevent_read_number_field(struct format_field *field, const void *data,
581 unsigned long long *value);
582
583 struct event_format *pevent_find_event(struct pevent *pevent, int id);
584
585 struct event_format *
586 pevent_find_event_by_name(struct pevent *pevent, const char *sys, const char *name);
587
588 void pevent_data_lat_fmt(struct pevent *pevent,
589 struct trace_seq *s, struct pevent_record *record);
590 int pevent_data_type(struct pevent *pevent, struct pevent_record *rec);
591 struct event_format *pevent_data_event_from_type(struct pevent *pevent, int type);
592 int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec);
593 const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid);
594 void pevent_event_info(struct trace_seq *s, struct event_format *event,
595 struct pevent_record *record);
596 int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum,
597 char *buf, size_t buflen);
598
599 struct event_format **pevent_list_events(struct pevent *pevent, enum event_sort_type);
600 struct format_field **pevent_event_common_fields(struct event_format *event);
601 struct format_field **pevent_event_fields(struct event_format *event);
602
603 static inline int pevent_get_cpus(struct pevent *pevent)
604 {
605 return pevent->cpus;
606 }
607
608 static inline void pevent_set_cpus(struct pevent *pevent, int cpus)
609 {
610 pevent->cpus = cpus;
611 }
612
613 static inline int pevent_get_long_size(struct pevent *pevent)
614 {
615 return pevent->long_size;
616 }
617
618 static inline void pevent_set_long_size(struct pevent *pevent, int long_size)
619 {
620 pevent->long_size = long_size;
621 }
622
623 static inline int pevent_is_file_bigendian(struct pevent *pevent)
624 {
625 return pevent->file_bigendian;
626 }
627
628 static inline void pevent_set_file_bigendian(struct pevent *pevent, int endian)
629 {
630 pevent->file_bigendian = endian;
631 }
632
633 static inline int pevent_is_host_bigendian(struct pevent *pevent)
634 {
635 return pevent->host_bigendian;
636 }
637
638 static inline void pevent_set_host_bigendian(struct pevent *pevent, int endian)
639 {
640 pevent->host_bigendian = endian;
641 }
642
643 static inline int pevent_is_latency_format(struct pevent *pevent)
644 {
645 return pevent->latency_format;
646 }
647
648 static inline void pevent_set_latency_format(struct pevent *pevent, int lat)
649 {
650 pevent->latency_format = lat;
651 }
652
653 struct pevent *pevent_alloc(void);
654 void pevent_free(struct pevent *pevent);
655 void pevent_ref(struct pevent *pevent);
656 void pevent_unref(struct pevent *pevent);
657
658 /* access to the internal parser */
659 void pevent_buffer_init(const char *buf, unsigned long long size);
660 enum event_type pevent_read_token(char **tok);
661 void pevent_free_token(char *token);
662 int pevent_peek_char(void);
663 const char *pevent_get_input_buf(void);
664 unsigned long long pevent_get_input_buf_ptr(void);
665
666 /* for debugging */
667 void pevent_print_funcs(struct pevent *pevent);
668 void pevent_print_printk(struct pevent *pevent);
669
670 /* ----------------------- filtering ----------------------- */
671
672 enum filter_boolean_type {
673 FILTER_FALSE,
674 FILTER_TRUE,
675 };
676
677 enum filter_op_type {
678 FILTER_OP_AND = 1,
679 FILTER_OP_OR,
680 FILTER_OP_NOT,
681 };
682
683 enum filter_cmp_type {
684 FILTER_CMP_NONE,
685 FILTER_CMP_EQ,
686 FILTER_CMP_NE,
687 FILTER_CMP_GT,
688 FILTER_CMP_LT,
689 FILTER_CMP_GE,
690 FILTER_CMP_LE,
691 FILTER_CMP_MATCH,
692 FILTER_CMP_NOT_MATCH,
693 FILTER_CMP_REGEX,
694 FILTER_CMP_NOT_REGEX,
695 };
696
697 enum filter_exp_type {
698 FILTER_EXP_NONE,
699 FILTER_EXP_ADD,
700 FILTER_EXP_SUB,
701 FILTER_EXP_MUL,
702 FILTER_EXP_DIV,
703 FILTER_EXP_MOD,
704 FILTER_EXP_RSHIFT,
705 FILTER_EXP_LSHIFT,
706 FILTER_EXP_AND,
707 FILTER_EXP_OR,
708 FILTER_EXP_XOR,
709 FILTER_EXP_NOT,
710 };
711
712 enum filter_arg_type {
713 FILTER_ARG_NONE,
714 FILTER_ARG_BOOLEAN,
715 FILTER_ARG_VALUE,
716 FILTER_ARG_FIELD,
717 FILTER_ARG_EXP,
718 FILTER_ARG_OP,
719 FILTER_ARG_NUM,
720 FILTER_ARG_STR,
721 };
722
723 enum filter_value_type {
724 FILTER_NUMBER,
725 FILTER_STRING,
726 FILTER_CHAR
727 };
728
729 struct fliter_arg;
730
731 struct filter_arg_boolean {
732 enum filter_boolean_type value;
733 };
734
735 struct filter_arg_field {
736 struct format_field *field;
737 };
738
739 struct filter_arg_value {
740 enum filter_value_type type;
741 union {
742 char *str;
743 unsigned long long val;
744 };
745 };
746
747 struct filter_arg_op {
748 enum filter_op_type type;
749 struct filter_arg *left;
750 struct filter_arg *right;
751 };
752
753 struct filter_arg_exp {
754 enum filter_exp_type type;
755 struct filter_arg *left;
756 struct filter_arg *right;
757 };
758
759 struct filter_arg_num {
760 enum filter_cmp_type type;
761 struct filter_arg *left;
762 struct filter_arg *right;
763 };
764
765 struct filter_arg_str {
766 enum filter_cmp_type type;
767 struct format_field *field;
768 char *val;
769 char *buffer;
770 regex_t reg;
771 };
772
773 struct filter_arg {
774 enum filter_arg_type type;
775 union {
776 struct filter_arg_boolean boolean;
777 struct filter_arg_field field;
778 struct filter_arg_value value;
779 struct filter_arg_op op;
780 struct filter_arg_exp exp;
781 struct filter_arg_num num;
782 struct filter_arg_str str;
783 };
784 };
785
786 struct filter_type {
787 int event_id;
788 struct event_format *event;
789 struct filter_arg *filter;
790 };
791
792 struct event_filter {
793 struct pevent *pevent;
794 int filters;
795 struct filter_type *event_filters;
796 };
797
798 struct event_filter *pevent_filter_alloc(struct pevent *pevent);
799
800 #define FILTER_NONE -2
801 #define FILTER_NOEXIST -1
802 #define FILTER_MISS 0
803 #define FILTER_MATCH 1
804
805 enum filter_trivial_type {
806 FILTER_TRIVIAL_FALSE,
807 FILTER_TRIVIAL_TRUE,
808 FILTER_TRIVIAL_BOTH,
809 };
810
811 int pevent_filter_add_filter_str(struct event_filter *filter,
812 const char *filter_str,
813 char **error_str);
814
815
816 int pevent_filter_match(struct event_filter *filter,
817 struct pevent_record *record);
818
819 int pevent_event_filtered(struct event_filter *filter,
820 int event_id);
821
822 void pevent_filter_reset(struct event_filter *filter);
823
824 void pevent_filter_clear_trivial(struct event_filter *filter,
825 enum filter_trivial_type type);
826
827 void pevent_filter_free(struct event_filter *filter);
828
829 char *pevent_filter_make_string(struct event_filter *filter, int event_id);
830
831 int pevent_filter_remove_event(struct event_filter *filter,
832 int event_id);
833
834 int pevent_filter_event_has_trivial(struct event_filter *filter,
835 int event_id,
836 enum filter_trivial_type type);
837
838 int pevent_filter_copy(struct event_filter *dest, struct event_filter *source);
839
840 int pevent_update_trivial(struct event_filter *dest, struct event_filter *source,
841 enum filter_trivial_type type);
842
843 int pevent_filter_compare(struct event_filter *filter1, struct event_filter *filter2);
844
845 #endif /* _PARSE_EVENTS_H */
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