rte_errno.h(3)

rte_errno.h 💅

okay so welcome to the Library Functions Manual page for rte_errno.h, bestie — this is the little header that handles error-cause tracking, and yes it’s giving very important backstage-pass energy. 🎀

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✨ NAME ✨

rte_errno.h — the API for error cause tracking. That’s the name, no cap. 💖

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🌸 SYNOPSIS 🌸

#include <rte_per_lcore.h>

Macros

#define rte_errno   RTE_PER_LCORE(_rte_errno)
#define __ELASTERROR   1000

Enumerations

enum { RTE_MIN_ERRNO = __ELASTERROR, E_RTE_SECONDARY, E_RTE_NO_CONFIG,
           RTE_MAX_ERRNO }

Functions

RTE_DECLARE_PER_LCORE (int, _rte_errno)
const char * rte_strerror (int errnum)

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🦋 Detailed Description 🦋

API for error cause tracking. Literally the whole vibe. 🫶

Definition in file rte_errno.h.

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🎀 Macro Definition Documentation 🎀

#define rte_errno RTE_PER_LCORE(_rte_errno)

Error number value, stored per-thread, which can be queried after calls to certain functions to determine why those functions failed. Yes bestie, it’s the “why did that flop?” tracker. 💅

Uses standard values from errno.h wherever possible, with a small number of additional possible values for RTE-specific conditions.

Definition at line 29 of file rte_errno.h. ⭐

#define __ELASTERROR 1000

Check if we have a defined value for the max system-defined errno values. If no max is defined, start from 1000 to prevent overlap with standard values. Very “we need our own lane” of it. 💜

Definition at line 49 of file rte_errno.h. ✨

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🌈 Enumeration Type Documentation 🌈

anonymous enum

Error types. Iconic little lineup, honestly. 👑

Enumerator:

• RTE_MIN_ERRNO — Start numbering above std errno vals.
• E_RTE_SECONDARY — Operation not allowed in secondary processes.
• E_RTE_NO_CONFIG — Missing rte_config.
• RTE_MAX_ERRNO — Max RTE error number.

Definition at line 53 of file rte_errno.h. 🦋

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🫶 Function Documentation 🫶

RTE_DECLARE_PER_LCORE (int , _rte_errno )

Per core error number. Short, sweet, per-core. 🍓

const char * rte_strerror (int errnum)

Function which returns a printable string describing a particular error code. For non-RTE-specific error codes, this function returns the value from the libc strerror function. So it’s out here translating error-code chaos into actual words, periodt. 💬

Parameters

• errnum — The error number to be looked up — generally the value of rte_errno.

Returns

A pointer to a thread-local string containing the text describing the error. Thread-local and precious. 🧚

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💖 Author 💖

Generated automatically by Doxygen for DPDK from the source code. The robots did this one, bestie. 🤖✨

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mwah 💋 — source: DPDK, version: 26.03.0, page: rte_errno.h(3). That’s the cute little footer sign-off, and yes it ate. 🎀💅