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1 | /*- |
2 | * BSD LICENSE | |
3 | * | |
4 | * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * * Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * * Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * * Neither the name of Intel Corporation nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
25 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
27 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #include <stdint.h> | |
35 | #include <stdio.h> | |
36 | #include <string.h> | |
37 | #include <stdarg.h> | |
38 | #include <errno.h> | |
39 | ||
40 | #include <rte_per_lcore.h> | |
41 | #include <rte_errno.h> | |
42 | #include <rte_string_fns.h> | |
43 | ||
44 | RTE_DEFINE_PER_LCORE(int, _rte_errno); | |
45 | ||
46 | const char * | |
47 | rte_strerror(int errnum) | |
48 | { | |
49 | #define RETVAL_SZ 256 | |
50 | static RTE_DEFINE_PER_LCORE(char[RETVAL_SZ], retval); | |
51 | ||
52 | /* since some implementations of strerror_r throw an error | |
53 | * themselves if errnum is too big, we handle that case here */ | |
54 | if (errnum > RTE_MAX_ERRNO) | |
55 | snprintf(RTE_PER_LCORE(retval), RETVAL_SZ, | |
56 | #ifdef RTE_EXEC_ENV_BSDAPP | |
57 | "Unknown error: %d", errnum); | |
58 | #else | |
59 | "Unknown error %d", errnum); | |
60 | #endif | |
61 | else | |
62 | switch (errnum){ | |
63 | case E_RTE_SECONDARY: | |
64 | return "Invalid call in secondary process"; | |
65 | case E_RTE_NO_CONFIG: | |
66 | return "Missing rte_config structure"; | |
67 | default: | |
68 | strerror_r(errnum, RTE_PER_LCORE(retval), RETVAL_SZ); | |
69 | } | |
70 | ||
71 | return RTE_PER_LCORE(retval); | |
72 | } |