TT_PATTERN_XARG_ADD(3)

💅 tt_pattern_xarg_add — bestie's guide to XDR pattern args 💅

ok so. this is a library call from the tt_pattern_xarg_add page and it's literally about adding a brand-new argument (with an interpreted XDR value, no less) to a pattern object. that's the whole vibe. let's get into it 🫶

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✨ NAME ✨

tt_pattern_xarg_add — add a new argument with an interpreted XDR value to a pattern object. like, you're handing your pattern a lil extra something to carry. slay.

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🌸 SYNOPSIS 🌸

#include <Tt/tt_c.h>
Tt_status tt_pattern_xarg_add(
Tt_pattern m,
Tt_mode n,
const char *vtype,
xdrproc_t xdr_proc,
void *value);

ok copy that exactly, no cap, i'm not responsible if you drop a semicolon 🔥

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🦋 DESCRIPTION 🦋

so tt_pattern_xarg_add does exactly what it says on the tin: it adds a new argument with an interpreted XDR value to a pattern object. iconic behavior honestly.

let's meet the cast:

• m — the opaque handle for the pattern involved in this operation. it's opaque, bestie, so don't go peeking inside, just pass it along. 🙈
• n — specifies who (sender, handler, observers) writes and reads a pattern argument. the modes are defined below and there are exactly three, so pick one:

🎀 the modes 🎀

• TT_IN — the argument is written by the sender and read by the handler and any observers. one-way street, very demure. ✨
• TT_OUT — the argument is written by the handler and read by the sender and any reply observers. the reverse flow, love that for us.
• TT_INOUT — the argument is written by the sender and the handler and read by all. everybody's involved, main character energy all around. 👑

🌈 the rest of the args 🌈

• vtype — describes the type of argument data being added. it's your lil label so everyone knows what they're looking at.
• xdr_proc — points to the XDR procedure to be used to serialize the data pointed to by value. serialization queen 💅
• value — the data to be serialized. this is the actual payload. the moment. the content.

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⭐ RETURN VALUE ⭐

when it works out, tt_pattern_xarg_add returns the status of the operation as one of these Tt_status values. it's giving report card:

• TT_OK — the operation completed successfully. we love a happy ending 💖
• TT_ERR_MODE — the specified Tt_mode is invalid. you gave it a mode that doesn't exist, bestie, and it noticed.
• TT_ERR_NOMP — the ttsession(1) process is not running and the ToolTalk service cannot restart it. kinda the worst. 😭
• TT_ERR_POINTER — the pointer passed does not point to an object of the correct type for this operation. wrong type of pointer, wrong energy, vibe check failed 💀
• TT_ERR_XDR — the XDR procedure failed on the given data, or evaluated to a zero-length expression. yeah that's a real one, don't sleep on it.

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👑 SEE ALSO 👑

Tt/tt_c.h - Tttt_c(5)

go read those, iykyk 📚

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lowkey important reminder: these are library call pages, so the details above are the whole truth — don't invent extra flags in your head, the mode list is literally just TT_IN, TT_OUT, and TT_INOUT, fr fr. 🙏

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and that's the page!! source/version situation: it's the tt_pattern_xarg_add manual page, filed under library call, and the date… honestly the footer doesn't give us one, so we're just gonna say it's an OG mystery 🧚 — catch you on the next man page, bestie 💜✨🎀