[Qemu-devel] [RFC PATCH 07/14] QemuOpts: introduce qemu_find_opts_singleton

[Paolo Bonzini <pbonzini@redhat.com>]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 include/qemu/config-file.h |  2 ++
 util/qemu-config.c         | 14 ++++++++++++++
 vl.c                       | 11 +----------
 3 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/include/qemu/config-file.h b/include/qemu/config-file.h
index 508428f..699c3a1 100644
--- a/include/qemu/config-file.h
+++ b/include/qemu/config-file.h
@@ -7,6 +7,8 @@
 
 QemuOptsList *qemu_find_opts(const char *group);
 QemuOptsList *qemu_find_opts_err(const char *group, Error **errp);
+QemuOpts *qemu_find_opts_singleton(const char *group);
+
 void qemu_add_opts(QemuOptsList *list);
 void qemu_add_drive_opts(QemuOptsList *list);
 int qemu_set_option(const char *str);
diff --git a/util/qemu-config.c b/util/qemu-config.c
index 04da942..c6ac589 100644
--- a/util/qemu-config.c
+++ b/util/qemu-config.c
@@ -39,6 +39,20 @@ QemuOptsList *qemu_find_opts(const char *group)
     return ret;
 }
 
+QemuOpts *qemu_find_opts_singleton(const char *group)
+{
+    QemuOptsList *list;
+    QemuOpts *opts;
+
+    list = qemu_find_opts(group);
+    assert(list);
+    opts = qemu_opts_find(list, NULL);
+    if (!opts) {
+        opts = qemu_opts_create_nofail(list);
+    }
+    return opts;
+}
+
 static CommandLineParameterInfoList *query_option_descs(const QemuOptDesc *desc)
 {
     CommandLineParameterInfoList *param_list = NULL, *entry;
diff --git a/vl.c b/vl.c
index 95181e0..ecda5ad 100644
--- a/vl.c
+++ b/vl.c
@@ -537,16 +537,7 @@ static QemuOptsList qemu_msg_opts = {
  */
 QemuOpts *qemu_get_machine_opts(void)
 {
-    QemuOptsList *list;
-    QemuOpts *opts;
-
-    list = qemu_find_opts("machine");
-    assert(list);
-    opts = qemu_opts_find(list, NULL);
-    if (!opts) {
-        opts = qemu_opts_create_nofail(list);
-    }
-    return opts;
+    return qemu_find_opts_singleton("machine");
 }
 
 const char *qemu_get_vm_name(void)
-- 
1.8.4.2