1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/* SPDX-License-Identifier: GPL-3.0-only */
#define TF_ERRORS \
TF_ERROR(SUCCESS, "success"), \
TF_ERROR(ATOI_OVERFLOW, "value too large"), \
TF_ERROR(ATOI_NO_DIGITS, "no digits found in string"), \
TF_ERROR(ATOI_JUNK_AT_END, "further characters after number"), \
TF_ERROR(LOPSUB, "lopsub error"), \
TF_ERROR(REGEX, "regular expression error"), \
TF_ERROR(TXP, "tag expression parse error"), \
TF_ERROR(LH_EXIST, "item already exists in hash table"), \
/*
* This is temporarily defined to expand to its first argument (prefixed by
* 'E_') and gets later redefined to expand to the error text only
*/
#define TF_ERROR(err, msg) E_ ## err
enum tf_error_codes {TF_ERRORS};
#undef TF_ERROR
#define TF_ERROR(err, msg) msg
#define DEFINE_TF_ERRLIST char *tf_errlist[] = {TF_ERRORS}
extern char *tf_errlist[];
/**
* This bit indicates whether a number is considered a system error number
* If yes, the system errno is just the result of clearing this bit from
* the given number.
*/
#define SYSTEM_ERROR_BIT 30
/** Check whether the system error bit is set. */
#define IS_SYSTEM_ERROR(num) (!!((num) & (1 << SYSTEM_ERROR_BIT)))
/** Set the system error bit for the given number. */
#define ERRNO_TO_TF_ERROR(num) ((num) | (1 << SYSTEM_ERROR_BIT))
static inline char *tf_strerror(int num)
{
assert(num > 0);
if (IS_SYSTEM_ERROR(num))
return strerror((num) & ((1 << SYSTEM_ERROR_BIT) - 1));
else
return tf_errlist[num];
}
|
