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qemu-config: find_list(): use error_set()

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Note that qemu_find_opts() and qemu_config_parse() need to call
error_report() to maintain their semantics on error.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-By: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Luiz Capitulino 2012-03-28 14:14:17 -03:00
parent 8ff15d4a2d
commit 2ac2061338
1 changed files with 25 additions and 7 deletions
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32
qemu-config.c
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@ -3,6 +3,7 @@
#include "qemu-option.h"
#include "qemu-config.h"
#include "hw/qdev.h"
#include "error.h"
static QemuOptsList qemu_drive_opts = {
.name = "drive",
@ -631,7 +632,8 @@ static QemuOptsList *vm_config_groups[32] = {
NULL,
};
static QemuOptsList *find_list(QemuOptsList **lists, const char *group)
static QemuOptsList *find_list(QemuOptsList **lists, const char *group,
Error **errp)
{
int i;
@ -640,14 +642,23 @@ static QemuOptsList *find_list(QemuOptsList **lists, const char *group)
break;
}
if (lists[i] == NULL) {
error_report("there is no option group \"%s\"", group);
error_set(errp, QERR_INVALID_OPTION_GROUP, group);
}
return lists[i];
}
QemuOptsList *qemu_find_opts(const char *group)
{
return find_list(vm_config_groups, group);
QemuOptsList *ret;
Error *local_err = NULL;
ret = find_list(vm_config_groups, group, &local_err);
if (error_is_set(&local_err)) {
error_report("%s\n", error_get_pretty(local_err));
error_free(local_err);
}
return ret;
}
void qemu_add_opts(QemuOptsList *list)
@ -762,6 +773,7 @@ int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
char line[1024], group[64], id[64], arg[64], value[1024];
Location loc;
QemuOptsList *list = NULL;
Error *local_err = NULL;
QemuOpts *opts = NULL;
int res = -1, lno = 0;
@ -778,17 +790,23 @@ int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
}
if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
/* group with id */
list = find_list(lists, group);
if (list == NULL)
list = find_list(lists, group, &local_err);
if (error_is_set(&local_err)) {
error_report("%s\n", error_get_pretty(local_err));
error_free(local_err);
goto out;
}
opts = qemu_opts_create(list, id, 1, NULL);
continue;
}
if (sscanf(line, "[%63[^]]]", group) == 1) {
/* group without id */
list = find_list(lists, group);
if (list == NULL)
list = find_list(lists, group, &local_err);
if (error_is_set(&local_err)) {
error_report("%s\n", error_get_pretty(local_err));
error_free(local_err);
goto out;
}
opts = qemu_opts_create(list, NULL, 0, NULL);
continue;
}