TSFWRITE(3ts)

🎀 NAME 🎀

okay bestie, meet TSfwrite — it’s literally the TSfwrite API function from the Apache Traffic Server TSFWRITE(3ts) manual. no cap, she’s here to write bytes and look cute doing it. 💅✨

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✨ SYNOPSIS ✨

#include <ts/ts.h>

ssize_t TSfwrite(TSFile filep, const void *buf, size_t length)

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💖 DESCRIPTION 💖

So like, this function attempts to write length bytes of data from the buffer buf to the file filep. that’s the whole assignment, bestie. 🫶

Make sure filep is open for writing. You might want to check the number of bytes written — and yes, TSfwrite() returns this value — against the value of length. If it’s less, there might be insufficient space on disk, for example. 😭💀

🚨 UNDEFINED BEHAVIOR ALERT: if length is greater than SSIZE_MAX, the behavior is undefined. like, do not do that, fr fr. 🙈

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🌈 RETURN VALUE 🌈

It returns the number of bytes actually written, or -1 if an error occurred. periodt. 💅👑

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👑 COPYRIGHT 👑

Copyright: 2026, dev@trafficserver.apache.org 🎀

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This iconic page is from Apache Traffic Server version 9.2, dated Feb 12, 2026. bye bestie, go write some bytes responsibly! 💜🦋