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conf-parser: add macro for ENUMV 

Parses a whitespace separated list of strings into a vector of enums.
This commit is contained in:
Tom Gundersen 2013-10-29 13:03:13 +01:00
parent 0b99c9f8f0
commit 916484f54d
1 changed files with 61 additions and 0 deletions
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61
src/shared/conf-parser.h
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@ -149,3 +149,64 @@ int log_syntax_internal(const char *unit, int level,
*i = x; \
return 0; \
}
#define DEFINE_CONFIG_PARSE_ENUMV(function,name,type,invalid,msg) \
int function(const char *unit, \
const char *filename, \
unsigned line, \
const char *section, \
const char *lvalue, \
int ltype, \
const char *rvalue, \
void *data, \
void *userdata) { \
\
type **enums = data, *xs, x, *ys; \
char *w, *state; \
size_t l, i = 0; \
\
assert(filename); \
assert(lvalue); \
assert(rvalue); \
assert(data); \
\
xs = new0(type, 1); \
*xs = invalid; \
\
FOREACH_WORD(w, l, rvalue, state) { \
_cleanup_free_ char *en = NULL; \
\
en = strndup(w, l); \
if (!en) \
return -ENOMEM; \
\
if ((x = name##_from_string(en)) < 0) { \
log_syntax(unit, LOG_ERR, filename, line, \
-x, msg ", ignoring: %s", en); \
continue; \
} \
\
for (ys = xs; x != invalid && *ys != invalid; ys++) { \
if (*ys == x) { \
log_syntax(unit, LOG_ERR, filename, \
line, -x, \
"Duplicate entry, ignoring: %s", \
en); \
x = invalid; \
} \
} \
\
if (x == invalid) \
continue; \
\
*(xs + i) = x; \
xs = realloc(xs, ++i + 1); \
if (!xs) \
return -ENOMEM; \
*(xs + i) = invalid; \
} \
\
free(*enums); \
*enums = xs; \
return 0; \
}