[PATCH V3 03/10] libxl_json: Replace JSON_TRUE/FALSE by JSON_BOOL.

[Anthony PERARD <anthony.perard@citrix.com>]

Those two JSON_TRUE and JSON_FALSE were types of node. But it's better to have
a unique JSON_BOOL type.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
---
 tools/libxl/libxl_internal.h | 15 +++++++++++++--
 tools/libxl/libxl_json.c     |  4 ++--
 tools/libxl/libxl_qmp.c      |  3 ++-
 3 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index 49c62c0..5604256 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -1428,8 +1428,7 @@ _hidden yajl_gen_status libxl__yajl_gen_enum(yajl_gen hand, const char *str);
 
 typedef enum {
     JSON_NULL,
-    JSON_TRUE,
-    JSON_FALSE,
+    JSON_BOOL,
     JSON_INTEGER,
     JSON_DOUBLE,
     /* number is store in string, it's too big to be a long long or a double */
@@ -1443,6 +1442,7 @@ typedef enum {
 typedef struct libxl__json_object {
     libxl__json_node_type type;
     union {
+        bool b;
         long long i;
         double d;
         char *string;
@@ -1461,6 +1461,10 @@ typedef struct {
 
 typedef struct libxl__yajl_ctx libxl__yajl_ctx;
 
+static inline bool libxl__json_object_is_bool(const libxl__json_object *o)
+{
+    return o != NULL && o->type == JSON_BOOL;
+}
 static inline bool libxl__json_object_is_string(const libxl__json_object *o)
 {
     return o != NULL && o->type == JSON_STRING;
@@ -1478,6 +1482,13 @@ static inline bool libxl__json_object_is_array(const libxl__json_object *o)
     return o != NULL && o->type == JSON_ARRAY;
 }
 
+static inline bool libxl__json_object_get_bool(const libxl__json_object *o)
+{
+    if (libxl__json_object_is_bool(o))
+        return o->u.b;
+    else
+        return false;
+}
 static inline
 const char *libxl__json_object_get_string(const libxl__json_object *o)
 {
diff --git a/tools/libxl/libxl_json.c b/tools/libxl/libxl_json.c
index 30b2980..34fd8c7 100644
--- a/tools/libxl/libxl_json.c
+++ b/tools/libxl/libxl_json.c
@@ -350,8 +350,8 @@ static int json_callback_boolean(void *opaque, int boolean)
 
     DEBUG_GEN_VALUE(ctx, bool, boolean);
 
-    obj = libxl__json_object_alloc(ctx->gc,
-                                   boolean ? JSON_TRUE : JSON_FALSE);
+    obj = libxl__json_object_alloc(ctx->gc, JSON_BOOL);
+    obj->u.b = boolean;
 
     if (libxl__json_object_append_to(ctx->gc, obj, ctx->current) == -1) {
         return 0;
diff --git a/tools/libxl/libxl_qmp.c b/tools/libxl/libxl_qmp.c
index 15550e7..9109ac5 100644
--- a/tools/libxl/libxl_qmp.c
+++ b/tools/libxl/libxl_qmp.c
@@ -178,7 +178,8 @@ static int qmp_register_vnc_callback(libxl__qmp_handler *qmp,
         goto out;
     }
 
-    if (libxl__json_map_get("enabled", o, JSON_FALSE)) {
+    obj = libxl__json_map_get("enabled", o, JSON_BOOL);
+    if (!obj || !libxl__json_object_get_bool(obj)) {
         rc = 0;
         goto out;
     }
-- 
Anthony PERARD