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authorMarkus Armbruster <armbru@redhat.com>2015-02-13 12:50:26 +0100
committerMarkus Armbruster <armbru@redhat.com>2015-06-22 18:20:39 +0200
commit70b9433109ed99217b812f19800de550e2e0ecd5 (patch)
tree5108fd06d2106dfc495b9defab7212eb89b65ab3 /util
parentf006cf7fa9a63ba8e4ccf57d46231ce594301727 (diff)
QemuOpts: Wean off qerror_report_err()
qerror_report_err() is a transitional interface to help with converting existing monitor commands to QMP. It should not be used elsewhere. The only remaining user in qemu-option.c is qemu_opts_parse(). Is it used in QMP context? If not, we can simply replace qerror_report_err() by error_report_err(). The uses in qemu-img.c, qemu-io.c, qemu-nbd.c and under tests/ are clearly not in QMP context. The uses in vl.c aren't either, because the only QMP command handlers there are qmp_query_status() and qmp_query_machines(), and they don't call it. Remaining uses: * drive_def(): Command line -drive and such, HMP drive_add and pci_add * hmp_chardev_add(): HMP chardev-add * monitor_parse_command(): HMP core * tmp_config_parse(): Command line -tpmdev * net_host_device_add(): HMP host_net_add * net_client_parse(): Command line -net and -netdev * qemu_global_option(): Command line -global * vnc_parse_func(): Command line -display, -vnc, default display, HMP change, QMP change. Bummer. * qemu_pci_hot_add_nic(): HMP pci_add * usb_net_init(): Command line -usbdevice, HMP usb_add Propagate errors through qemu_opts_parse(). Create a convenience function qemu_opts_parse_noisily() that passes errors to error_report_err(). Switch all non-QMP users outside tests to it. That leaves vnc_parse_func(). Propagate errors through it. Since I'm touching it anyway, rename it to vnc_parse(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Diffstat (limited to 'util')
-rw-r--r--util/qemu-option.c25
1 files changed, 19 insertions, 6 deletions
diff --git a/util/qemu-option.c b/util/qemu-option.c
index 69da28c7e1..06c63ed619 100644
--- a/util/qemu-option.c
+++ b/util/qemu-option.c
@@ -820,7 +820,7 @@ void qemu_opts_do_parse(QemuOpts *opts, const char *params,
}
static QemuOpts *opts_parse(QemuOptsList *list, const char *params,
- int permit_abbrev, bool defaults, Error **errp)
+ bool permit_abbrev, bool defaults, Error **errp)
{
const char *firstname;
char value[1024], *id = NULL;
@@ -867,19 +867,32 @@ static QemuOpts *opts_parse(QemuOptsList *list, const char *params,
* Create a QemuOpts in @list and with options parsed from @params.
* If @permit_abbrev, the first key=value in @params may omit key=,
* and is treated as if key was @list->implied_opt_name.
- * Report errors with qerror_report_err().
+ * On error, store an error object through @errp if non-null.
* Return the new QemuOpts on success, null pointer on error.
*/
QemuOpts *qemu_opts_parse(QemuOptsList *list, const char *params,
- int permit_abbrev)
+ bool permit_abbrev, Error **errp)
+{
+ return opts_parse(list, params, permit_abbrev, false, errp);
+}
+
+/**
+ * Create a QemuOpts in @list and with options parsed from @params.
+ * If @permit_abbrev, the first key=value in @params may omit key=,
+ * and is treated as if key was @list->implied_opt_name.
+ * Report errors with error_report_err(). This is inappropriate in
+ * QMP context. Do not use this function there!
+ * Return the new QemuOpts on success, null pointer on error.
+ */
+QemuOpts *qemu_opts_parse_noisily(QemuOptsList *list, const char *params,
+ bool permit_abbrev)
{
Error *err = NULL;
QemuOpts *opts;
opts = opts_parse(list, params, permit_abbrev, false, &err);
- if (!opts) {
- qerror_report_err(err);
- error_free(err);
+ if (err) {
+ error_report_err(err);
}
return opts;
}