NAME
sysdecode_kevent,
sysdecode_kevent_fflags,
sysdecode_kevent_filter,
sysdecode_kevent_flags —
output description of kevent structure
fields
LIBRARY
library “libsysdecode”
SYNOPSIS
#include
<sys/types.h>
#include <stdbool.h>
#include <stdio.h>
#include <sysdecode.h>
void
sysdecode_kevent_fflags(FILE
*fp, short filter,
int fflags,
int base);
bool
sysdecode_kevent_flags(FILE
*fp, int flags,
int *rem);
const char *
sysdecode_kevent_filter(int
filter);
DESCRIPTION
These functions provide text descriptions of struct kevent fields.The
sysdecode_kevent_fflags()
function outputs a text description of the fflags
member of a struct kevent to the stream
fp. For the EVFILT_READ,
EVFILT_WRITE, EVFILT_VNODE,
EVFILT_PROC,
EVFILT_PROCDESC,
EVFILT_TIMER, and
EVFILT_USER filters,
sysdecode_kevent_fflags() outputs a bitmask of
filter-specific NOTE_* flags as documented in
kevent(2). For other values of filter, the
value of fflags is output in the indicated
base (one of 8, 10, or 16).
The
sysdecode_kevent_filter()
function returns a text description of the filter
member of a struct kevent.
NULL is returned if the filter
value is unknown.
The
sysdecode_kevent_flags()
function outputs a text description of the flags
member of a struct kevent to the stream
fp. This function uses the same calling convention and
formatting as the other functions described in
sysdecode_mask(3).
RETURN VALUES
The sysdecode_kevent_filter function
returns the name of a filter or NULL if the filter value is
unknown.
The sysdecode_kevent_flags function
returns true if any flags in the
flags field were decoded and
false if no flags were decoded.