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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/lib/traceevent/event-parse.h | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/lib/traceevent/event-parse.h')
-rw-r--r-- | tools/lib/traceevent/event-parse.h | 749 |
1 files changed, 749 insertions, 0 deletions
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h new file mode 100644 index 000000000..a67ad9a5b --- /dev/null +++ b/tools/lib/traceevent/event-parse.h @@ -0,0 +1,749 @@ +/* SPDX-License-Identifier: LGPL-2.1 */ +/* + * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> + * + */ +#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; + +typedef int (*tep_event_handler_func)(struct trace_seq *s, + struct tep_record *record, + struct tep_event *event, + void *context); + +typedef int (*tep_plugin_load_func)(struct tep_handle *tep); +typedef int (*tep_plugin_unload_func)(struct tep_handle *tep); + +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 *tep) + * + * TEP_PLUGIN_UNLOADER: (optional) + * The function called just before unloading + * + * int TEP_PLUGIN_UNLOADER(struct tep_handle *tep) + * + * 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 *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_parse; + +struct tep_print_fmt { + char *format; + struct tep_print_arg *args; + struct tep_print_parse *print_cache; +}; + +struct tep_event { + struct tep_handle *tep; + 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. + * + * https://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)) + +enum tep_plugin_load_priority { + TEP_PLUGIN_FIRST, + TEP_PLUGIN_LAST, +}; + +int tep_add_plugin_path(struct tep_handle *tep, char *path, + enum tep_plugin_load_priority prio); +struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep); +void tep_unload_plugins(struct tep_plugin_list *plugin_list, + struct tep_handle *tep); +void tep_load_plugins_hook(struct tep_handle *tep, const char *suffix, + void (*load_plugin)(struct tep_handle *tep, + const char *path, + const char *name, + void *data), + void *data); +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); +int tep_plugin_add_option(const char *name, const char *val); +void tep_plugin_remove_options(struct tep_plugin_option *options); +void tep_plugin_print_options(struct trace_seq *s); +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); +void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag); +bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags); + +static inline int tep_is_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 *tep, + tep_func_resolver_t *func, void *priv); +void tep_reset_function_resolver(struct tep_handle *tep); +int tep_register_comm(struct tep_handle *tep, const char *comm, int pid); +int tep_override_comm(struct tep_handle *tep, const char *comm, int pid); +int tep_register_function(struct tep_handle *tep, char *name, + unsigned long long addr, char *mod); +int tep_register_print_string(struct tep_handle *tep, const char *fmt, + unsigned long long addr); +bool tep_is_pid_registered(struct tep_handle *tep, int pid); + +struct tep_event *tep_get_event(struct tep_handle *tep, int index); + +#define TEP_PRINT_INFO "INFO" +#define TEP_PRINT_INFO_RAW "INFO_RAW" +#define TEP_PRINT_COMM "COMM" +#define TEP_PRINT_LATENCY "LATENCY" +#define TEP_PRINT_NAME "NAME" +#define TEP_PRINT_PID 1U +#define TEP_PRINT_TIME 2U +#define TEP_PRINT_CPU 3U + +void tep_print_event(struct tep_handle *tep, struct trace_seq *s, + struct tep_record *record, const char *fmt, ...) + __attribute__ ((format (printf, 4, 5))); + +int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size, + int long_size); + +enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf, + unsigned long size, const char *sys); +enum tep_errno tep_parse_format(struct tep_handle *tep, + struct tep_event **eventp, + const char *buf, + unsigned long size, const char *sys); + +void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event, + const char *name, struct tep_record *record, + int *len, int err); + +int tep_get_field_val(struct trace_seq *s, struct tep_event *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 *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 *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 *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 *event, const char *name, + struct tep_record *record, int err); + +enum tep_reg_handler { + TEP_REGISTER_SUCCESS = 0, + TEP_REGISTER_SUCCESS_OVERWRITE, +}; + +int tep_register_event_handler(struct tep_handle *tep, 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 *tep, 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 *tep, + tep_func_handler func, + enum tep_func_arg_type ret_type, + char *name, ...); +int tep_unregister_print_function(struct tep_handle *tep, + tep_func_handler func, char *name); + +struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name); +struct tep_format_field *tep_find_field(struct tep_event *event, const char *name); +struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name); + +const char *tep_find_function(struct tep_handle *tep, unsigned long long addr); +unsigned long long +tep_find_function_address(struct tep_handle *tep, unsigned long long addr); +unsigned long long tep_read_number(struct tep_handle *tep, 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 *tep_get_first_event(struct tep_handle *tep); +int tep_get_events_count(struct tep_handle *tep); +struct tep_event *tep_find_event(struct tep_handle *tep, int id); + +struct tep_event * +tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name); +struct tep_event * +tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record); + +int tep_data_type(struct tep_handle *tep, struct tep_record *rec); +int tep_data_pid(struct tep_handle *tep, struct tep_record *rec); +int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec); +int tep_data_flags(struct tep_handle *tep, struct tep_record *rec); +const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid); +struct tep_cmdline; +struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm, + struct tep_cmdline *next); +int tep_cmdline_pid(struct tep_handle *tep, struct tep_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 *event); +int tep_strerror(struct tep_handle *tep, enum tep_errno errnum, + char *buf, size_t buflen); + +struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type); +struct tep_event **tep_list_events_copy(struct tep_handle *tep, + enum tep_event_sort_type); +struct tep_format_field **tep_event_common_fields(struct tep_event *event); +struct tep_format_field **tep_event_fields(struct tep_event *event); + +enum tep_endian { + TEP_LITTLE_ENDIAN = 0, + TEP_BIG_ENDIAN +}; +int tep_get_cpus(struct tep_handle *tep); +void tep_set_cpus(struct tep_handle *tep, int cpus); +int tep_get_long_size(struct tep_handle *tep); +void tep_set_long_size(struct tep_handle *tep, int long_size); +int tep_get_page_size(struct tep_handle *tep); +void tep_set_page_size(struct tep_handle *tep, int _page_size); +bool tep_is_file_bigendian(struct tep_handle *tep); +void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian); +bool tep_is_local_bigendian(struct tep_handle *tep); +void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian); +int tep_get_header_page_size(struct tep_handle *tep); +int tep_get_header_timestamp_size(struct tep_handle *tep); +bool tep_is_old_format(struct tep_handle *tep); +void tep_set_test_filters(struct tep_handle *tep, int test_filters); + +struct tep_handle *tep_alloc(void); +void tep_free(struct tep_handle *tep); +void tep_ref(struct tep_handle *tep); +void tep_unref(struct tep_handle *tep); +int tep_get_ref(struct tep_handle *tep); + +/* for debugging */ +void tep_print_funcs(struct tep_handle *tep); +void tep_print_printk(struct tep_handle *tep); + +/* ----------------------- 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 *event; + struct tep_filter_arg *filter; +}; + +#define TEP_FILTER_ERROR_BUFSZ 1024 + +struct tep_event_filter { + struct tep_handle *tep; + 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 *tep); + +/* 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_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); + +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_copy(struct tep_event_filter *dest, struct tep_event_filter *source); + +int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2); + +#endif /* _PARSE_EVENTS_H */ |