mirror of https://github.com/F-Stack/f-stack.git
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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/**
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* @file
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*
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* API for error cause tracking
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*/
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#ifndef _RTE_ERRNO_H_
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#define _RTE_ERRNO_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <rte_per_lcore.h>
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RTE_DECLARE_PER_LCORE(int, _rte_errno); /**< Per core error number. */
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/**
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* Error number value, stored per-thread, which can be queried after
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* calls to certain functions to determine why those functions failed.
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*
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* Uses standard values from errno.h wherever possible, with a small number
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* of additional possible values for RTE-specific conditions.
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*/
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#define rte_errno RTE_PER_LCORE(_rte_errno)
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/**
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* Function which returns a printable string describing a particular
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* error code. For non-RTE-specific error codes, this function returns
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* the value from the libc strerror function.
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*
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* @param errnum
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* The error number to be looked up - generally the value of rte_errno
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* @return
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* A pointer to a thread-local string containing the text describing
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* the error.
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*/
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const char *rte_strerror(int errnum);
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#ifndef __ELASTERROR
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/**
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* Check if we have a defined value for the max system-defined errno values.
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* if no max defined, start from 1000 to prevent overlap with standard values
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*/
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#define __ELASTERROR 1000
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#endif
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/** Error types */
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enum {
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RTE_MIN_ERRNO = __ELASTERROR, /**< Start numbering above std errno vals */
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E_RTE_SECONDARY, /**< Operation not allowed in secondary processes */
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E_RTE_NO_CONFIG, /**< Missing rte_config */
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RTE_MAX_ERRNO /**< Max RTE error number */
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* _RTE_ERRNO_H_ */
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