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linux/tools/lib/traceevent/event-parse.h
Tzvetomir Stoyanov bb3dd7e7c4 tools lib traceevent, perf tools: Move struct tep_handler definition in a local header file 
As traceevent is going to be transferred into a proper library,
its local data should be protected from the library users.
This patch encapsulates struct tep_handler into a local header,
not visible outside of the library. It implements also a bunch
of new APIs, which library users can use to access tep_handler members.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linux trace devel <linux-trace-devel@vger.kernel.org>
Cc: tzvetomir stoyanov <tstoyanov@vmware.com>
Link: http://lkml.kernel.org/r/20181005122225.522155df@gandalf.local.home
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-10-08 15:05:37 -03:00

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/*
* Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License (not later!)
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#ifndef _PARSE_EVENTS_H
#define _PARSE_EVENTS_H
#include <stdbool.h>
#include <stdarg.h>
#include <stdio.h>
#include <regex.h>
#include <string.h>
#include "trace-seq.h"
#ifndef __maybe_unused
#define __maybe_unused __attribute__((unused))
#endif
#ifndef DEBUG_RECORD
#define DEBUG_RECORD 0
#endif
struct tep_record {
unsigned long long ts;
unsigned long long offset;
long long missed_events; /* buffer dropped events before */
int record_size; /* size of binary record */
int size; /* size of data */
void *data;
int cpu;
int ref_count;
int locked; /* Do not free, even if ref_count is zero */
void *priv;
#if DEBUG_RECORD
struct tep_record *prev;
struct tep_record *next;
long alloc_addr;
#endif
};
/* ----------------------- tep ----------------------- */
struct tep_handle;
struct tep_event_format;
typedef int (*tep_event_handler_func)(struct trace_seq *s,
struct tep_record *record,
struct tep_event_format *event,
void *context);
typedef int (*tep_plugin_load_func)(struct tep_handle *pevent);
typedef int (*tep_plugin_unload_func)(struct tep_handle *pevent);
struct tep_plugin_option {
struct tep_plugin_option *next;
void *handle;
char *file;
char *name;
char *plugin_alias;
char *description;
const char *value;
void *priv;
int set;
};
/*
* Plugin hooks that can be called:
*
* TEP_PLUGIN_LOADER: (required)
* The function name to initialized the plugin.
*
* int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
*
* TEP_PLUGIN_UNLOADER: (optional)
* The function called just before unloading
*
* int TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
*
* TEP_PLUGIN_OPTIONS: (optional)
* Plugin options that can be set before loading
*
* struct tep_plugin_option TEP_PLUGIN_OPTIONS[] = {
* {
* .name = "option-name",
* .plugin_alias = "override-file-name", (optional)
* .description = "description of option to show users",
* },
* {
* .name = NULL,
* },
* };
*
* Array must end with .name = NULL;
*
*
* .plugin_alias is used to give a shorter name to access
* the vairable. Useful if a plugin handles more than one event.
*
* If .value is not set, then it is considered a boolean and only
* .set will be processed. If .value is defined, then it is considered
* a string option and .set will be ignored.
*
* TEP_PLUGIN_ALIAS: (optional)
* The name to use for finding options (uses filename if not defined)
*/
#define TEP_PLUGIN_LOADER tep_plugin_loader
#define TEP_PLUGIN_UNLOADER tep_plugin_unloader
#define TEP_PLUGIN_OPTIONS tep_plugin_options
#define TEP_PLUGIN_ALIAS tep_plugin_alias
#define _MAKE_STR(x) #x
#define MAKE_STR(x) _MAKE_STR(x)
#define TEP_PLUGIN_LOADER_NAME MAKE_STR(TEP_PLUGIN_LOADER)
#define TEP_PLUGIN_UNLOADER_NAME MAKE_STR(TEP_PLUGIN_UNLOADER)
#define TEP_PLUGIN_OPTIONS_NAME MAKE_STR(TEP_PLUGIN_OPTIONS)
#define TEP_PLUGIN_ALIAS_NAME MAKE_STR(TEP_PLUGIN_ALIAS)
enum tep_format_flags {
TEP_FIELD_IS_ARRAY = 1,
TEP_FIELD_IS_POINTER = 2,
TEP_FIELD_IS_SIGNED = 4,
TEP_FIELD_IS_STRING = 8,
TEP_FIELD_IS_DYNAMIC = 16,
TEP_FIELD_IS_LONG = 32,
TEP_FIELD_IS_FLAG = 64,
TEP_FIELD_IS_SYMBOLIC = 128,
};
struct tep_format_field {
struct tep_format_field *next;
struct tep_event_format *event;
char *type;
char *name;
char *alias;
int offset;
int size;
unsigned int arraylen;
unsigned int elementsize;
unsigned long flags;
};
struct tep_format {
int nr_common;
int nr_fields;
struct tep_format_field *common_fields;
struct tep_format_field *fields;
};
struct tep_print_arg_atom {
char *atom;
};
struct tep_print_arg_string {
char *string;
int offset;
};
struct tep_print_arg_bitmask {
char *bitmask;
int offset;
};
struct tep_print_arg_field {
char *name;
struct tep_format_field *field;
};
struct tep_print_flag_sym {
struct tep_print_flag_sym *next;
char *value;
char *str;
};
struct tep_print_arg_typecast {
char *type;
struct tep_print_arg *item;
};
struct tep_print_arg_flags {
struct tep_print_arg *field;
char *delim;
struct tep_print_flag_sym *flags;
};
struct tep_print_arg_symbol {
struct tep_print_arg *field;
struct tep_print_flag_sym *symbols;
};
struct tep_print_arg_hex {
struct tep_print_arg *field;
struct tep_print_arg *size;
};
struct tep_print_arg_int_array {
struct tep_print_arg *field;
struct tep_print_arg *count;
struct tep_print_arg *el_size;
};
struct tep_print_arg_dynarray {
struct tep_format_field *field;
struct tep_print_arg *index;
};
struct tep_print_arg;
struct tep_print_arg_op {
char *op;
int prio;
struct tep_print_arg *left;
struct tep_print_arg *right;
};
struct tep_function_handler;
struct tep_print_arg_func {
struct tep_function_handler *func;
struct tep_print_arg *args;
};
enum tep_print_arg_type {
TEP_PRINT_NULL,
TEP_PRINT_ATOM,
TEP_PRINT_FIELD,
TEP_PRINT_FLAGS,
TEP_PRINT_SYMBOL,
TEP_PRINT_HEX,
TEP_PRINT_INT_ARRAY,
TEP_PRINT_TYPE,
TEP_PRINT_STRING,
TEP_PRINT_BSTRING,
TEP_PRINT_DYNAMIC_ARRAY,
TEP_PRINT_OP,
TEP_PRINT_FUNC,
TEP_PRINT_BITMASK,
TEP_PRINT_DYNAMIC_ARRAY_LEN,
TEP_PRINT_HEX_STR,
};
struct tep_print_arg {
struct tep_print_arg *next;
enum tep_print_arg_type type;
union {
struct tep_print_arg_atom atom;
struct tep_print_arg_field field;
struct tep_print_arg_typecast typecast;
struct tep_print_arg_flags flags;
struct tep_print_arg_symbol symbol;
struct tep_print_arg_hex hex;
struct tep_print_arg_int_array int_array;
struct tep_print_arg_func func;
struct tep_print_arg_string string;
struct tep_print_arg_bitmask bitmask;
struct tep_print_arg_op op;
struct tep_print_arg_dynarray dynarray;
};
};
struct tep_print_fmt {
char *format;
struct tep_print_arg *args;
};
struct tep_event_format {
struct tep_handle *pevent;
char *name;
int id;
int flags;
struct tep_format format;
struct tep_print_fmt print_fmt;
char *system;
tep_event_handler_func handler;
void *context;
};
enum {
TEP_EVENT_FL_ISFTRACE = 0x01,
TEP_EVENT_FL_ISPRINT = 0x02,
TEP_EVENT_FL_ISBPRINT = 0x04,
TEP_EVENT_FL_ISFUNCENT = 0x10,
TEP_EVENT_FL_ISFUNCRET = 0x20,
TEP_EVENT_FL_NOHANDLE = 0x40,
TEP_EVENT_FL_PRINTRAW = 0x80,
TEP_EVENT_FL_FAILED = 0x80000000
};
enum tep_event_sort_type {
TEP_EVENT_SORT_ID,
TEP_EVENT_SORT_NAME,
TEP_EVENT_SORT_SYSTEM,
};
enum tep_event_type {
TEP_EVENT_ERROR,
TEP_EVENT_NONE,
TEP_EVENT_SPACE,
TEP_EVENT_NEWLINE,
TEP_EVENT_OP,
TEP_EVENT_DELIM,
TEP_EVENT_ITEM,
TEP_EVENT_DQUOTE,
TEP_EVENT_SQUOTE,
};
typedef unsigned long long (*tep_func_handler)(struct trace_seq *s,
unsigned long long *args);
enum tep_func_arg_type {
TEP_FUNC_ARG_VOID,
TEP_FUNC_ARG_INT,
TEP_FUNC_ARG_LONG,
TEP_FUNC_ARG_STRING,
TEP_FUNC_ARG_PTR,
TEP_FUNC_ARG_MAX_TYPES
};
enum tep_flag {
TEP_NSEC_OUTPUT = 1, /* output in NSECS */
TEP_DISABLE_SYS_PLUGINS = 1 << 1,
TEP_DISABLE_PLUGINS = 1 << 2,
};
#define TEP_ERRORS \
_PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \
_PE(PARSE_EVENT_FAILED, "failed to parse event"), \
_PE(READ_ID_FAILED, "failed to read event id"), \
_PE(READ_FORMAT_FAILED, "failed to read event format"), \
_PE(READ_PRINT_FAILED, "failed to read event print fmt"), \
_PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\
_PE(INVALID_ARG_TYPE, "invalid argument type"), \
_PE(INVALID_EXP_TYPE, "invalid expression type"), \
_PE(INVALID_OP_TYPE, "invalid operator type"), \
_PE(INVALID_EVENT_NAME, "invalid event name"), \
_PE(EVENT_NOT_FOUND, "no event found"), \
_PE(SYNTAX_ERROR, "syntax error"), \
_PE(ILLEGAL_RVALUE, "illegal rvalue"), \
_PE(ILLEGAL_LVALUE, "illegal lvalue for string comparison"), \
_PE(INVALID_REGEX, "regex did not compute"), \
_PE(ILLEGAL_STRING_CMP, "illegal comparison for string"), \
_PE(ILLEGAL_INTEGER_CMP,"illegal comparison for integer"), \
_PE(REPARENT_NOT_OP, "cannot reparent other than OP"), \
_PE(REPARENT_FAILED, "failed to reparent filter OP"), \
_PE(BAD_FILTER_ARG, "bad arg in filter tree"), \
_PE(UNEXPECTED_TYPE, "unexpected type (not a value)"), \
_PE(ILLEGAL_TOKEN, "illegal token"), \
_PE(INVALID_PAREN, "open parenthesis cannot come here"), \
_PE(UNBALANCED_PAREN, "unbalanced number of parenthesis"), \
_PE(UNKNOWN_TOKEN, "unknown token"), \
_PE(FILTER_NOT_FOUND, "no filter found"), \
_PE(NOT_A_NUMBER, "must have number field"), \
_PE(NO_FILTER, "no filters exists"), \
_PE(FILTER_MISS, "record does not match to filter")
#undef _PE
#define _PE(__code, __str) TEP_ERRNO__ ## __code
enum tep_errno {
TEP_ERRNO__SUCCESS = 0,
TEP_ERRNO__FILTER_MATCH = TEP_ERRNO__SUCCESS,
/*
* Choose an arbitrary negative big number not to clash with standard
* errno since SUS requires the errno has distinct positive values.
* See 'Issue 6' in the link below.
*
* http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
*/
__TEP_ERRNO__START = -100000,
TEP_ERRORS,
__TEP_ERRNO__END,
};
#undef _PE
struct tep_plugin_list;
#define INVALID_PLUGIN_LIST_OPTION ((char **)((unsigned long)-1))
struct tep_plugin_list *tep_load_plugins(struct tep_handle *pevent);
void tep_unload_plugins(struct tep_plugin_list *plugin_list,
struct tep_handle *pevent);
char **tep_plugin_list_options(void);
void tep_plugin_free_options_list(char **list);
int tep_plugin_add_options(const char *name,
struct tep_plugin_option *options);
void tep_plugin_remove_options(struct tep_plugin_option *options);
void tep_print_plugins(struct trace_seq *s,
const char *prefix, const char *suffix,
const struct tep_plugin_list *list);
/* tep_handle */
typedef char *(tep_func_resolver_t)(void *priv,
unsigned long long *addrp, char **modp);
void tep_set_flag(struct tep_handle *tep, int flag);
unsigned short __tep_data2host2(struct tep_handle *pevent, unsigned short data);
unsigned int __tep_data2host4(struct tep_handle *pevent, unsigned int data);
unsigned long long
__tep_data2host8(struct tep_handle *pevent, unsigned long long data);
#define tep_data2host2(pevent, ptr) __tep_data2host2(pevent, *(unsigned short *)(ptr))
#define tep_data2host4(pevent, ptr) __tep_data2host4(pevent, *(unsigned int *)(ptr))
#define tep_data2host8(pevent, ptr) \
({ \
unsigned long long __val; \
\
memcpy(&__val, (ptr), sizeof(unsigned long long)); \
__tep_data2host8(pevent, __val); \
})
static inline int tep_host_bigendian(void)
{
unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
unsigned int val;
memcpy(&val, str, 4);
return val == 0x01020304;
}
/* taken from kernel/trace/trace.h */
enum trace_flag_type {
TRACE_FLAG_IRQS_OFF = 0x01,
TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
TRACE_FLAG_NEED_RESCHED = 0x04,
TRACE_FLAG_HARDIRQ = 0x08,
TRACE_FLAG_SOFTIRQ = 0x10,
};
int tep_set_function_resolver(struct tep_handle *pevent,
tep_func_resolver_t *func, void *priv);
void tep_reset_function_resolver(struct tep_handle *pevent);
int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid);
int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock);
int tep_register_function(struct tep_handle *pevent, char *name,
unsigned long long addr, char *mod);
int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
unsigned long long addr);
int tep_pid_is_registered(struct tep_handle *pevent, int pid);
void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
struct tep_event_format *event,
struct tep_record *record);
void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
struct tep_event_format *event,
struct tep_record *record,
bool use_trace_clock);
void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
struct tep_event_format *event,
struct tep_record *record);
void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
struct tep_record *record, bool use_trace_clock);
int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
int long_size);
enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
unsigned long size, const char *sys);
enum tep_errno tep_parse_format(struct tep_handle *pevent,
struct tep_event_format **eventp,
const char *buf,
unsigned long size, const char *sys);
void tep_free_format(struct tep_event_format *event);
void tep_free_format_field(struct tep_format_field *field);
void *tep_get_field_raw(struct trace_seq *s, struct tep_event_format *event,
const char *name, struct tep_record *record,
int *len, int err);
int tep_get_field_val(struct trace_seq *s, struct tep_event_format *event,
const char *name, struct tep_record *record,
unsigned long long *val, int err);
int tep_get_common_field_val(struct trace_seq *s, struct tep_event_format *event,
const char *name, struct tep_record *record,
unsigned long long *val, int err);
int tep_get_any_field_val(struct trace_seq *s, struct tep_event_format *event,
const char *name, struct tep_record *record,
unsigned long long *val, int err);
int tep_print_num_field(struct trace_seq *s, const char *fmt,
struct tep_event_format *event, const char *name,
struct tep_record *record, int err);
int tep_print_func_field(struct trace_seq *s, const char *fmt,
struct tep_event_format *event, const char *name,
struct tep_record *record, int err);
int tep_register_event_handler(struct tep_handle *pevent, int id,
const char *sys_name, const char *event_name,
tep_event_handler_func func, void *context);
int tep_unregister_event_handler(struct tep_handle *pevent, int id,
const char *sys_name, const char *event_name,
tep_event_handler_func func, void *context);
int tep_register_print_function(struct tep_handle *pevent,
tep_func_handler func,
enum tep_func_arg_type ret_type,
char *name, ...);
int tep_unregister_print_function(struct tep_handle *pevent,
tep_func_handler func, char *name);
struct tep_format_field *tep_find_common_field(struct tep_event_format *event, const char *name);
struct tep_format_field *tep_find_field(struct tep_event_format *event, const char *name);
struct tep_format_field *tep_find_any_field(struct tep_event_format *event, const char *name);
const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr);
unsigned long long
tep_find_function_address(struct tep_handle *pevent, unsigned long long addr);
unsigned long long tep_read_number(struct tep_handle *pevent, const void *ptr, int size);
int tep_read_number_field(struct tep_format_field *field, const void *data,
unsigned long long *value);
struct tep_event_format *tep_get_first_event(struct tep_handle *tep);
int tep_get_events_count(struct tep_handle *tep);
struct tep_event_format *tep_find_event(struct tep_handle *pevent, int id);
struct tep_event_format *
tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *name);
struct tep_event_format *
tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
void tep_data_lat_fmt(struct tep_handle *pevent,
struct trace_seq *s, struct tep_record *record);
int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
struct tep_event_format *tep_data_event_from_type(struct tep_handle *pevent, int type);
int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec);
const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid);
struct cmdline;
struct cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
struct cmdline *next);
int tep_cmdline_pid(struct tep_handle *pevent, struct cmdline *cmdline);
void tep_print_field(struct trace_seq *s, void *data,
struct tep_format_field *field);
void tep_print_fields(struct trace_seq *s, void *data,
int size __maybe_unused, struct tep_event_format *event);
void tep_event_info(struct trace_seq *s, struct tep_event_format *event,
struct tep_record *record);
int tep_strerror(struct tep_handle *pevent, enum tep_errno errnum,
char *buf, size_t buflen);
struct tep_event_format **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type);
struct tep_format_field **tep_event_common_fields(struct tep_event_format *event);
struct tep_format_field **tep_event_fields(struct tep_event_format *event);
enum tep_endian {
TEP_LITTLE_ENDIAN = 0,
TEP_BIG_ENDIAN
};
int tep_get_cpus(struct tep_handle *pevent);
void tep_set_cpus(struct tep_handle *pevent, int cpus);
int tep_get_long_size(struct tep_handle *pevent);
void tep_set_long_size(struct tep_handle *pevent, int long_size);
int tep_get_page_size(struct tep_handle *pevent);
void tep_set_page_size(struct tep_handle *pevent, int _page_size);
int tep_is_file_bigendian(struct tep_handle *pevent);
void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
int tep_is_host_bigendian(struct tep_handle *pevent);
void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian);
int tep_is_latency_format(struct tep_handle *pevent);
void tep_set_latency_format(struct tep_handle *pevent, int lat);
int tep_get_header_page_size(struct tep_handle *pevent);
struct tep_handle *tep_alloc(void);
void tep_free(struct tep_handle *pevent);
void tep_ref(struct tep_handle *pevent);
void tep_unref(struct tep_handle *pevent);
/* access to the internal parser */
void tep_buffer_init(const char *buf, unsigned long long size);
enum tep_event_type tep_read_token(char **tok);
void tep_free_token(char *token);
int tep_peek_char(void);
const char *tep_get_input_buf(void);
unsigned long long tep_get_input_buf_ptr(void);
/* for debugging */
void tep_print_funcs(struct tep_handle *pevent);
void tep_print_printk(struct tep_handle *pevent);
/* ----------------------- filtering ----------------------- */
enum tep_filter_boolean_type {
TEP_FILTER_FALSE,
TEP_FILTER_TRUE,
};
enum tep_filter_op_type {
TEP_FILTER_OP_AND = 1,
TEP_FILTER_OP_OR,
TEP_FILTER_OP_NOT,
};
enum tep_filter_cmp_type {
TEP_FILTER_CMP_NONE,
TEP_FILTER_CMP_EQ,
TEP_FILTER_CMP_NE,
TEP_FILTER_CMP_GT,
TEP_FILTER_CMP_LT,
TEP_FILTER_CMP_GE,
TEP_FILTER_CMP_LE,
TEP_FILTER_CMP_MATCH,
TEP_FILTER_CMP_NOT_MATCH,
TEP_FILTER_CMP_REGEX,
TEP_FILTER_CMP_NOT_REGEX,
};
enum tep_filter_exp_type {
TEP_FILTER_EXP_NONE,
TEP_FILTER_EXP_ADD,
TEP_FILTER_EXP_SUB,
TEP_FILTER_EXP_MUL,
TEP_FILTER_EXP_DIV,
TEP_FILTER_EXP_MOD,
TEP_FILTER_EXP_RSHIFT,
TEP_FILTER_EXP_LSHIFT,
TEP_FILTER_EXP_AND,
TEP_FILTER_EXP_OR,
TEP_FILTER_EXP_XOR,
TEP_FILTER_EXP_NOT,
};
enum tep_filter_arg_type {
TEP_FILTER_ARG_NONE,
TEP_FILTER_ARG_BOOLEAN,
TEP_FILTER_ARG_VALUE,
TEP_FILTER_ARG_FIELD,
TEP_FILTER_ARG_EXP,
TEP_FILTER_ARG_OP,
TEP_FILTER_ARG_NUM,
TEP_FILTER_ARG_STR,
};
enum tep_filter_value_type {
TEP_FILTER_NUMBER,
TEP_FILTER_STRING,
TEP_FILTER_CHAR
};
struct tep_filter_arg;
struct tep_filter_arg_boolean {
enum tep_filter_boolean_type value;
};
struct tep_filter_arg_field {
struct tep_format_field *field;
};
struct tep_filter_arg_value {
enum tep_filter_value_type type;
union {
char *str;
unsigned long long val;
};
};
struct tep_filter_arg_op {
enum tep_filter_op_type type;
struct tep_filter_arg *left;
struct tep_filter_arg *right;
};
struct tep_filter_arg_exp {
enum tep_filter_exp_type type;
struct tep_filter_arg *left;
struct tep_filter_arg *right;
};
struct tep_filter_arg_num {
enum tep_filter_cmp_type type;
struct tep_filter_arg *left;
struct tep_filter_arg *right;
};
struct tep_filter_arg_str {
enum tep_filter_cmp_type type;
struct tep_format_field *field;
char *val;
char *buffer;
regex_t reg;
};
struct tep_filter_arg {
enum tep_filter_arg_type type;
union {
struct tep_filter_arg_boolean boolean;
struct tep_filter_arg_field field;
struct tep_filter_arg_value value;
struct tep_filter_arg_op op;
struct tep_filter_arg_exp exp;
struct tep_filter_arg_num num;
struct tep_filter_arg_str str;
};
};
struct tep_filter_type {
int event_id;
struct tep_event_format *event;
struct tep_filter_arg *filter;
};
#define TEP_FILTER_ERROR_BUFSZ 1024
struct tep_event_filter {
struct tep_handle *pevent;
int filters;
struct tep_filter_type *event_filters;
char error_buffer[TEP_FILTER_ERROR_BUFSZ];
};
struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
/* for backward compatibility */
#define FILTER_NONE TEP_ERRNO__NO_FILTER
#define FILTER_NOEXIST TEP_ERRNO__FILTER_NOT_FOUND
#define FILTER_MISS TEP_ERRNO__FILTER_MISS
#define FILTER_MATCH TEP_ERRNO__FILTER_MATCH
enum tep_filter_trivial_type {
TEP_FILTER_TRIVIAL_FALSE,
TEP_FILTER_TRIVIAL_TRUE,
TEP_FILTER_TRIVIAL_BOTH,
};
enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
const char *filter_str);
enum tep_errno tep_filter_match(struct tep_event_filter *filter,
struct tep_record *record);
int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
char *buf, size_t buflen);
int tep_event_filtered(struct tep_event_filter *filter,
int event_id);
void tep_filter_reset(struct tep_event_filter *filter);
int tep_filter_clear_trivial(struct tep_event_filter *filter,
enum tep_filter_trivial_type type);
void tep_filter_free(struct tep_event_filter *filter);
char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
int tep_filter_remove_event(struct tep_event_filter *filter,
int event_id);
int tep_filter_event_has_trivial(struct tep_event_filter *filter,
int event_id,
enum tep_filter_trivial_type type);
int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
enum tep_filter_trivial_type type);
int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
#endif /* _PARSE_EVENTS_H */
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