sysdecode_kevent(3)    FreeBSD Library Functions Manual    sysdecode_kevent(3)

NAME
     sysdecode_kevent, sysdecode_kevent_fflags, sysdecode_kevent_filter,
     sysdecode_kevent_flags - output description of kevent structure fields

LIBRARY
     System Argument Decoding Library (libsysdecode, -lsysdecode)

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.

SEE ALSO
     sysdecode(3), sysdecode_enum(3), sysdecode_mask(3)

FreeBSD 13.1-RELEASE-p6        November 24, 2017       FreeBSD 13.1-RELEASE-p6