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QError: Introduce qerror_format_desc()

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Refactor non-QError-specific bits out of qerror_human() into general
function that can be used by the error_get_pretty() analogue in the
new error-propagation framework.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Luiz Capitulino 2011-06-01 12:14:47 -05:00 committed by Anthony Liguori
parent 23bf93b215
commit a12eeaaa4f
1 changed files with 25 additions and 19 deletions
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44
qerror.c
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@ -326,12 +326,14 @@ QError *qerror_from_info(const char *file, int linenr, const char *func,
return qerr;
}
static void parse_error(const QError *qerror, int c)
static void parse_error(const QErrorStringTable *entry, int c)
{
qerror_abort(qerror, "expected '%c' in '%s'", c, qerror->entry->desc);
fprintf(stderr, "expected '%c' in '%s'", c, entry->desc);
abort();
}
static const char *append_field(QString *outstr, const QError *qerror,
static const char *append_field(QDict *error, QString *outstr,
const QErrorStringTable *entry,
const char *start)
{
QObject *obj;
@ -340,23 +342,23 @@ static const char *append_field(QString *outstr, const QError *qerror,
const char *end, *key;
if (*start != '%')
parse_error(qerror, '%');
parse_error(entry, '%');
start++;
if (*start != '(')
parse_error(qerror, '(');
parse_error(entry, '(');
start++;
end = strchr(start, ')');
if (!end)
parse_error(qerror, ')');
parse_error(entry, ')');
key_qs = qstring_from_substr(start, 0, end - start - 1);
key = qstring_get_str(key_qs);
qdict = qobject_to_qdict(qdict_get(qerror->error, "data"));
qdict = qobject_to_qdict(qdict_get(error, "data"));
obj = qdict_get(qdict, key);
if (!obj) {
qerror_abort(qerror, "key '%s' not found in QDict", key);
abort();
}
switch (qobject_type(obj)) {
@ -367,41 +369,45 @@ static const char *append_field(QString *outstr, const QError *qerror,
qstring_append_int(outstr, qdict_get_int(qdict, key));
break;
default:
qerror_abort(qerror, "invalid type '%c'", qobject_type(obj));
abort();
}
QDECREF(key_qs);
return ++end;
}
/**
* qerror_human(): Format QError data into human-readable string.
*
* Formats according to member 'desc' of the specified QError object.
*/
QString *qerror_human(const QError *qerror)
static QString *qerror_format_desc(QDict *error,
const QErrorStringTable *entry)
{
const char *p;
QString *qstring;
const char *p;
assert(qerror->entry != NULL);
assert(entry != NULL);
qstring = qstring_new();
for (p = qerror->entry->desc; *p != '\0';) {
for (p = entry->desc; *p != '\0';) {
if (*p != '%') {
qstring_append_chr(qstring, *p++);
} else if (*(p + 1) == '%') {
qstring_append_chr(qstring, '%');
p += 2;
} else {
p = append_field(qstring, qerror, p);
p = append_field(error, qstring, entry, p);
}
}
return qstring;
}
/**
* qerror_human(): Format QError data into human-readable string.
*/
QString *qerror_human(const QError *qerror)
{
return qerror_format_desc(qerror->error, qerror->entry);
}
/**
* qerror_print(): Print QError data
*