[PATCH spice-server v3 4/5] red-channel-capabilities: Enhance

[Frediano Ziglio <fziglio@xxxxxxxxxx>]

Add function to initialize and destroy this type.
Add GObject type for boxing it.
These changes a in preparation for next patch.

Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
---
 server/red-channel-capabilities.c | 55 +++++++++++++++++++++++++++++++++++++++
 server/red-channel-capabilities.h | 16 +++++++++++-
 2 files changed, 70 insertions(+), 1 deletion(-)

diff --git a/server/red-channel-capabilities.c b/server/red-channel-capabilities.c
index 39bde66..dc28298 100644
--- a/server/red-channel-capabilities.c
+++ b/server/red-channel-capabilities.c
@@ -18,5 +18,60 @@
 #include <config.h>
 #endif
 
+#include <string.h>
+#include <common/mem.h>
+#include <common/macros.h>
+
 #include "red-channel-capabilities.h"
 
+GType red_channel_capabilities_type;
+
+void red_channel_capabilities_init(RedChannelCapabilities *dest,
+                                   const RedChannelCapabilities *caps)
+{
+    *dest = *caps;
+    if (caps->common_caps) {
+        dest->common_caps = spice_memdup(caps->common_caps,
+                                         caps->num_common_caps * sizeof(uint32_t));
+    }
+    if (caps->num_caps) {
+        dest->caps = spice_memdup(caps->caps, caps->num_caps * sizeof(uint32_t));
+    }
+}
+
+void red_channel_capabilities_reset(RedChannelCapabilities *caps)
+{
+    if (caps->num_common_caps) {
+        free(caps->common_caps);
+    }
+
+    if (caps->num_caps) {
+        free(caps->caps);
+    }
+    memset(caps, 0, sizeof(*caps));
+}
+
+static RedChannelCapabilities *red_channel_capabilities_dup(const RedChannelCapabilities *caps)
+{
+    if (!caps) {
+        return NULL;
+    }
+
+    RedChannelCapabilities *res = spice_new(RedChannelCapabilities, 1);
+    red_channel_capabilities_init(res, caps);
+    return res;
+}
+
+static void red_channel_capabilities_free(RedChannelCapabilities *caps)
+{
+    red_channel_capabilities_reset(caps);
+    free(caps);
+}
+
+SPICE_CONSTRUCTOR_FUNC(red_channel_capabilities_construct)
+{
+    red_channel_capabilities_type =
+        g_boxed_type_register_static("red_channel_capabilities_type",
+                                     (GBoxedCopyFunc) red_channel_capabilities_dup,
+                                     (GBoxedFreeFunc) red_channel_capabilities_free);
+}
diff --git a/server/red-channel-capabilities.h b/server/red-channel-capabilities.h
index 8729134..1f52cd4 100644
--- a/server/red-channel-capabilities.h
+++ b/server/red-channel-capabilities.h
@@ -20,10 +20,13 @@
 #define RED_CHANNEL_CAPABILITIES_H_
 
 #include <stdint.h>
-#include <glib.h>
+#include <glib-object.h>
 
 G_BEGIN_DECLS
 
+/* Holds channel capabilities.
+ * Channel capabilities are composed by a common part
+ * and a specific one. */
 typedef struct RedChannelCapabilities {
     int num_common_caps;
     uint32_t *common_caps;
@@ -31,6 +34,17 @@ typedef struct RedChannelCapabilities {
     uint32_t *caps;
 } RedChannelCapabilities;
 
+/* Initialize the structure based on a previous one. */
+void red_channel_capabilities_init(RedChannelCapabilities *dest,
+                                   const RedChannelCapabilities *caps);
+
+/* Reset capabilities.
+ * All resources are freed by this function. */
+void red_channel_capabilities_reset(RedChannelCapabilities *caps);
+
+/* GObject type that can be used to box RedChannelCapabilities */
+extern GType red_channel_capabilities_type;
+
 G_END_DECLS
 
 #endif
-- 
2.9.3

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