tools: Add setting Value property of gatt-service

This patch extends the gatt-service.c example adding a generic callback
to allow set the characteristic Value. It doesn't check for
characteristic properties yet.

diff --git a/tools/gatt-service.c b/tools/gatt-service.c
index a5a64b5..6ccaeb5 100644 (file)
--- a/tools/gatt-service.c
+++ b/tools/gatt-service.c
@@ -35,6 +35,8 @@
 #include <dbus/dbus.h>
 #include <gdbus/gdbus.h>
 
+#include "src/error.h"
+
 #define GATT_MGR_IFACE                 "org.bluez.GattManager1"
 #define GATT_SERVICE_IFACE             "org.bluez.GattService1"
 #define GATT_CHR_IFACE                 "org.bluez.GattCharacteristic1"
@@ -81,9 +83,38 @@ static gboolean chr_get_value(const GDBusPropertyTable *property,
        return TRUE;
 }
 
+static void chr_set_value(const GDBusPropertyTable *property,
+                               DBusMessageIter *iter,
+                               GDBusPendingPropertySet id, void *user_data)
+{
+       struct characteristic *chr = user_data;
+       DBusMessageIter array;
+       uint8_t *value;
+       int len;
+
+       printf("Set('Value', ...)\n");
+
+       if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_ARRAY) {
+               printf("Invalid value for Set('Value'...)\n");
+               g_dbus_pending_property_error(id,
+                                       ERROR_INTERFACE ".InvalidArguments",
+                                       "Invalid arguments in method call");
+               return;
+       }
+
+       dbus_message_iter_recurse(iter, &array);
+       dbus_message_iter_get_fixed_array(&array, &value, &len);
+
+       g_free(chr->value);
+       chr->value = g_memdup(value, len);
+       chr->vlen = len;
+
+       g_dbus_pending_property_success(id);
+}
+
 static const GDBusPropertyTable chr_properties[] = {
        { "UUID",       "s",    chr_get_uuid },
-       { "Value", "ay", chr_get_value, NULL, NULL },
+       { "Value", "ay", chr_get_value, chr_set_value, NULL },
        { }
 };