HP-UX Reference (11i v3 07/02) - 3 Library Functions A-M (vol 6)

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EvmEventNameMatch(3) EvmEventNameMatch(3)

NAME

EvmEventNameMatch(), EvmEventNameMatchStr() - match EVM event name

SYNOPSIS

#include <evm/evm.h>

EvmStatus_t EvmEventNameMatch(

const char *

pattern,

EvmEvent_t

event,

EvmBoolean_t *

match );

EvmStatus_t EvmEventNameMatchStr(

const char *

pattern,

const char *

candidate,

EvmBoolean_t *

match );

Library

EVM Support Library (libevm.so).

Parameters

pattern The event name pattern sought. The pattern may be any valid event name string. It may

include wildcard characters in place of any component.

event The event containing the event name to be compared against the pattern.

match The result of the match. This operand is set to EvmTRUE if the name matches the pattern,

and to EvmFALSE if it does not.

candidate A character string to be matched against the pattern

DESCRIPTION

Because special matching rules apply when deciding whether a candidate event name matches a known

name, the EVM name matching functions should be used for matching purposes, rather than the C string

comparison functions (memcpm(), strcmp()). The EVM functions match an event name against a sup-

plied pattern, ignoring any trailing appended components in the candidate name, and correctly matching

wildcard characters.

The EvmEventNameMatch

function takes an event and an event name pattern as input, and returns an

indication of whether the event contains a name which matches the pattern in the match output argument.

The pattern may be any valid event name string, and may also include wildcard characters in place of any

component. A wildcard

* in the pattern matches zero or more name components. A ? matches exactly

one component. A match occurs if the event name matches all components indicated by the pattern, even if

the name has additional trailing elements.

The

EvmEventNameMatchStr

function performs the same check as EvmEventNameMatch, but

takes a character string as the candidate event name, instead of extracting the candidate event name from

a supplied event.

Both functions set the match output argument to

EvmTRUE if the name matches the pattern, and to

EvmFALSE if it does not.

RETURN VALUE

EvmERROR_NONE The operation completed without error. The comparison was suc-

cessful. The value of the match operand indicates whether the name

matches the pattern.

EvmERROR_INVALID_ARGUMENT One of the arguments to the function is invalid. The supplied pat-

tern contains invalid characters.

EvmERROR_NOT_PRESENT The supplied event does not contain a name.

ERRORS

The value of errno is not set.