[Qemu-devel] [PATCH 1/3] qom: introduce object_class_get_list_sorted

[Paolo Bonzini <pbonzini@redhat.com>]

Unify half a dozen copies of very similar code (the only difference being
whether comparisons were case-sensitive) and use it also in Tricore,
which did not do any sorting of CPU model names.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 include/qom/object.h    | 11 +++++++++++
 qdev-monitor.c          |  9 +--------
 qom/object.c            | 13 +++++++++++++
 target/alpha/cpu.c      | 15 +--------------
 target/hppa/cpu.c       | 15 +--------------
 target/lm32/cpu.c       | 15 +--------------
 target/sh4/cpu.c        | 15 +--------------
 target/tricore/helper.c |  2 +-
 8 files changed, 30 insertions(+), 65 deletions(-)

diff --git a/include/qom/object.h b/include/qom/object.h
index 4f07090db0..96ce81bc5e 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -913,6 +913,17 @@ void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque),
 GSList *object_class_get_list(const char *implements_type,
                               bool include_abstract);
 
+/**
+ * object_class_get_list_sorted:
+ * @implements_type: The type to filter for, including its derivatives.
+ * @include_abstract: Whether to include abstract classes.
+ *
+ * Returns: A singly-linked list of the classes in alphabetical
+ * case-insensitive order.
+ */
+GSList *object_class_get_list_sorted(const char *implements_type,
+                              bool include_abstract);
+
 /**
  * object_ref:
  * @obj: the object
diff --git a/qdev-monitor.c b/qdev-monitor.c
index b7e3291f8b..61e0300991 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -122,12 +122,6 @@ static void qdev_print_devinfo(DeviceClass *dc)
     error_printf("\n");
 }
 
-static gint devinfo_cmp(gconstpointer a, gconstpointer b)
-{
-    return strcasecmp(object_class_get_name((ObjectClass *)a),
-                      object_class_get_name((ObjectClass *)b));
-}
-
 static void qdev_print_devinfos(bool show_no_user)
 {
     static const char *cat_name[DEVICE_CATEGORY_MAX + 1] = {
@@ -146,8 +140,7 @@ static void qdev_print_devinfos(bool show_no_user)
     int i;
     bool cat_printed;
 
-    list = g_slist_sort(object_class_get_list(TYPE_DEVICE, false),
-                        devinfo_cmp);
+    list = object_class_get_list_sorted(TYPE_DEVICE, false);
 
     for (i = 0; i <= DEVICE_CATEGORY_MAX; i++) {
         cat_printed = false;
diff --git a/qom/object.c b/qom/object.c
index 755ad03819..6088f55943 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -891,6 +891,19 @@ GSList *object_class_get_list(const char *implements_type,
     return list;
 }
 
+static gint object_class_cmp(gconstpointer a, gconstpointer b)
+{
+    return strcasecmp(object_class_get_name((ObjectClass *)a),
+                      object_class_get_name((ObjectClass *)b));
+}
+
+GSList *object_class_get_list_sorted(const char *implements_type,
+                                     bool include_abstract)
+{
+    return g_slist_sort(object_class_get_list(implements_type, include_abstract),
+                        object_class_cmp);
+}
+
 void object_ref(Object *obj)
 {
     if (!obj) {
diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c
index 55675ce419..b08078e7fc 100644
--- a/target/alpha/cpu.c
+++ b/target/alpha/cpu.c
@@ -71,18 +71,6 @@ static void alpha_cpu_realizefn(DeviceState *dev, Error **errp)
     acc->parent_realize(dev, errp);
 }
 
-/* Sort alphabetically by type name. */
-static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
-{
-    ObjectClass *class_a = (ObjectClass *)a;
-    ObjectClass *class_b = (ObjectClass *)b;
-    const char *name_a, *name_b;
-
-    name_a = object_class_get_name(class_a);
-    name_b = object_class_get_name(class_b);
-    return strcmp(name_a, name_b);
-}
-
 static void alpha_cpu_list_entry(gpointer data, gpointer user_data)
 {
     ObjectClass *oc = data;
@@ -100,8 +88,7 @@ void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf)
     };
     GSList *list;
 
-    list = object_class_get_list(TYPE_ALPHA_CPU, false);
-    list = g_slist_sort(list, alpha_cpu_list_compare);
+    list = object_class_get_list_sorted(TYPE_ALPHA_CPU, false);
     (*cpu_fprintf)(f, "Available CPUs:\n");
     g_slist_foreach(list, alpha_cpu_list_entry, &s);
     g_slist_free(list);
diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c
index 969f628f0a..c261b6b090 100644
--- a/target/hppa/cpu.c
+++ b/target/hppa/cpu.c
@@ -110,18 +110,6 @@ static void hppa_cpu_realizefn(DeviceState *dev, Error **errp)
 #endif
 }
 
-/* Sort hppabetically by type name. */
-static gint hppa_cpu_list_compare(gconstpointer a, gconstpointer b)
-{
-    ObjectClass *class_a = (ObjectClass *)a;
-    ObjectClass *class_b = (ObjectClass *)b;
-    const char *name_a, *name_b;
-
-    name_a = object_class_get_name(class_a);
-    name_b = object_class_get_name(class_b);
-    return strcmp(name_a, name_b);
-}
-
 static void hppa_cpu_list_entry(gpointer data, gpointer user_data)
 {
     ObjectClass *oc = data;
@@ -138,8 +126,7 @@ void hppa_cpu_list(FILE *f, fprintf_function cpu_fprintf)
     };
     GSList *list;
 
-    list = object_class_get_list(TYPE_HPPA_CPU, false);
-    list = g_slist_sort(list, hppa_cpu_list_compare);
+    list = object_class_get_list_sorted(TYPE_HPPA_CPU, false);
     (*cpu_fprintf)(f, "Available CPUs:\n");
     g_slist_foreach(list, hppa_cpu_list_entry, &s);
     g_slist_free(list);
diff --git a/target/lm32/cpu.c b/target/lm32/cpu.c
index 96c2499d0b..0003152469 100644
--- a/target/lm32/cpu.c
+++ b/target/lm32/cpu.c
@@ -32,18 +32,6 @@ static void lm32_cpu_set_pc(CPUState *cs, vaddr value)
     cpu->env.pc = value;
 }
 
-/* Sort alphabetically by type name. */
-static gint lm32_cpu_list_compare(gconstpointer a, gconstpointer b)
-{
-    ObjectClass *class_a = (ObjectClass *)a;
-    ObjectClass *class_b = (ObjectClass *)b;
-    const char *name_a, *name_b;
-
-    name_a = object_class_get_name(class_a);
-    name_b = object_class_get_name(class_b);
-    return strcmp(name_a, name_b);
-}
-
 static void lm32_cpu_list_entry(gpointer data, gpointer user_data)
 {
     ObjectClass *oc = data;
@@ -65,8 +53,7 @@ void lm32_cpu_list(FILE *f, fprintf_function cpu_fprintf)
     };
     GSList *list;
 
-    list = object_class_get_list(TYPE_LM32_CPU, false);
-    list = g_slist_sort(list, lm32_cpu_list_compare);
+    list = object_class_get_list_sorted(TYPE_LM32_CPU, false);
     (*cpu_fprintf)(f, "Available CPUs:\n");
     g_slist_foreach(list, lm32_cpu_list_entry, &s);
     g_slist_free(list);
diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c
index 6302cfda3a..541ffc2d97 100644
--- a/target/sh4/cpu.c
+++ b/target/sh4/cpu.c
@@ -85,18 +85,6 @@ typedef struct SuperHCPUListState {
     FILE *file;
 } SuperHCPUListState;
 
-/* Sort alphabetically by type name. */
-static gint superh_cpu_list_compare(gconstpointer a, gconstpointer b)
-{
-    ObjectClass *class_a = (ObjectClass *)a;
-    ObjectClass *class_b = (ObjectClass *)b;
-    const char *name_a, *name_b;
-
-    name_a = object_class_get_name(class_a);
-    name_b = object_class_get_name(class_b);
-    return strcmp(name_a, name_b);
-}
-
 static void superh_cpu_list_entry(gpointer data, gpointer user_data)
 {
     SuperHCPUListState *s = user_data;
@@ -114,8 +102,7 @@ void sh4_cpu_list(FILE *f, fprintf_function cpu_fprintf)
     };
     GSList *list;
 
-    list = object_class_get_list(TYPE_SUPERH_CPU, false);
-    list = g_slist_sort(list, superh_cpu_list_compare);
+    list = object_class_get_list_sorted(TYPE_SUPERH_CPU, false);
     g_slist_foreach(list, superh_cpu_list_entry, &s);
     g_slist_free(list);
 }
diff --git a/target/tricore/helper.c b/target/tricore/helper.c
index 45276d3782..dad7eea085 100644
--- a/target/tricore/helper.c
+++ b/target/tricore/helper.c
@@ -101,7 +101,7 @@ void tricore_cpu_list(FILE *f, fprintf_function cpu_fprintf)
     };
     GSList *list;
 
-    list = object_class_get_list(TYPE_TRICORE_CPU, false);
+    list = object_class_get_list_sorted(TYPE_TRICORE_CPU, false);
     (*cpu_fprintf)(f, "Available CPUs:\n");
     g_slist_foreach(list, tricore_cpu_list_entry, &s);
     g_slist_free(list);
-- 
2.14.3