sysdecode_kevent(3)

💖 sysdecode_kevent(3) — bestie edition 💖

okay so this is the sysdecode_kevent(3) page, and it's from the Library Functions Manual — manual name folded in right here, no cap. It's all about describing the fields inside a kevent structure, and it is lowkey iconic for debug output. 🫶

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🧚 NAME 🧚

• sysdecode_kevent, sysdecode_kevent_fflags, sysdecode_kevent_filter, sysdecode_kevent_flags — output description of kevent structure fields

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📚 LIBRARY 📚

library “libsysdecode”

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✨ SYNOPSIS ✨

#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);

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🌸 DESCRIPTION 🌸

These functions provide text descriptions of struct kevent fields. literally their whole job is making those fields make sense in text form. 💅

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). slay. 🎀

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. so if it doesn't know the filter, it's giving “no thoughts, just NULL.” 😭

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). consistency queen 👑✨

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💅 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.

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🦋 SEE ALSO 🦋

sysdecode(3), sysdecode_enum(3), sysdecode_mask(3)

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mwah 💋 — this page is from Debian, dated November 24, 2017. periodt. 💖