9 files changed, 32 insertions, 49 deletions
diff --git a/include/io/channel-buffer.h b/include/io/channel-buffer.h
index 3f4b3f29e1..89632ef437 100644
--- a/include/io/channel-buffer.h
+++ b/include/io/channel-buffer.h
@@ -22,12 +22,13 @@
 #define QIO_CHANNEL_BUFFER_H
 
 #include "io/channel.h"
+#include "qom/object.h"
 
 #define TYPE_QIO_CHANNEL_BUFFER "qio-channel-buffer"
-#define QIO_CHANNEL_BUFFER(obj)                                     \
-    OBJECT_CHECK(QIOChannelBuffer, (obj), TYPE_QIO_CHANNEL_BUFFER)
-
 typedef struct QIOChannelBuffer QIOChannelBuffer;
+DECLARE_INSTANCE_CHECKER(QIOChannelBuffer, QIO_CHANNEL_BUFFER,
+                         TYPE_QIO_CHANNEL_BUFFER)
+
 
 /**
  * QIOChannelBuffer:
diff --git a/include/io/channel-command.h b/include/io/channel-command.h
index 336d47fa5c..4b64ff011b 100644
--- a/include/io/channel-command.h
+++ b/include/io/channel-command.h
@@ -22,12 +22,13 @@
 #define QIO_CHANNEL_COMMAND_H
 
 #include "io/channel.h"
+#include "qom/object.h"
 
 #define TYPE_QIO_CHANNEL_COMMAND "qio-channel-command"
-#define QIO_CHANNEL_COMMAND(obj)                                     \
-    OBJECT_CHECK(QIOChannelCommand, (obj), TYPE_QIO_CHANNEL_COMMAND)
-
 typedef struct QIOChannelCommand QIOChannelCommand;
+DECLARE_INSTANCE_CHECKER(QIOChannelCommand, QIO_CHANNEL_COMMAND,
+                         TYPE_QIO_CHANNEL_COMMAND)
+
 
 
 /**
diff --git a/include/io/channel-file.h b/include/io/channel-file.h
index ebfe54ec70..c6caf179d9 100644
--- a/include/io/channel-file.h
+++ b/include/io/channel-file.h
@@ -22,12 +22,13 @@
 #define QIO_CHANNEL_FILE_H
 
 #include "io/channel.h"
+#include "qom/object.h"
 
 #define TYPE_QIO_CHANNEL_FILE "qio-channel-file"
-#define QIO_CHANNEL_FILE(obj)                                     \
-    OBJECT_CHECK(QIOChannelFile, (obj), TYPE_QIO_CHANNEL_FILE)
-
 typedef struct QIOChannelFile QIOChannelFile;
+DECLARE_INSTANCE_CHECKER(QIOChannelFile, QIO_CHANNEL_FILE,
+                         TYPE_QIO_CHANNEL_FILE)
+
 
 /**
  * QIOChannelFile:
diff --git a/include/io/channel-socket.h b/include/io/channel-socket.h
index 777ff5954e..62e3e2e970 100644
--- a/include/io/channel-socket.h
+++ b/include/io/channel-socket.h
@@ -24,12 +24,13 @@
 #include "io/channel.h"
 #include "io/task.h"
 #include "qemu/sockets.h"
+#include "qom/object.h"
 
 #define TYPE_QIO_CHANNEL_SOCKET "qio-channel-socket"
-#define QIO_CHANNEL_SOCKET(obj)                                     \
-    OBJECT_CHECK(QIOChannelSocket, (obj), TYPE_QIO_CHANNEL_SOCKET)
-
 typedef struct QIOChannelSocket QIOChannelSocket;
+DECLARE_INSTANCE_CHECKER(QIOChannelSocket, QIO_CHANNEL_SOCKET,
+                         TYPE_QIO_CHANNEL_SOCKET)
+
 
 /**
  * QIOChannelSocket:
diff --git a/include/io/channel-tls.h b/include/io/channel-tls.h
index fdbdf12feb..036bf54195 100644
--- a/include/io/channel-tls.h
+++ b/include/io/channel-tls.h
@@ -24,12 +24,13 @@
 #include "io/channel.h"
 #include "io/task.h"
 #include "crypto/tlssession.h"
+#include "qom/object.h"
 
 #define TYPE_QIO_CHANNEL_TLS "qio-channel-tls"
-#define QIO_CHANNEL_TLS(obj)                                     \
-    OBJECT_CHECK(QIOChannelTLS, (obj), TYPE_QIO_CHANNEL_TLS)
-
 typedef struct QIOChannelTLS QIOChannelTLS;
+DECLARE_INSTANCE_CHECKER(QIOChannelTLS, QIO_CHANNEL_TLS,
+                         TYPE_QIO_CHANNEL_TLS)
+
 
 /**
  * QIOChannelTLS
diff --git a/include/io/channel-websock.h b/include/io/channel-websock.h
index a7e5e92e61..b07eddabe1 100644
--- a/include/io/channel-websock.h
+++ b/include/io/channel-websock.h
@@ -24,12 +24,13 @@
 #include "io/channel.h"
 #include "qemu/buffer.h"
 #include "io/task.h"
+#include "qom/object.h"
 
 #define TYPE_QIO_CHANNEL_WEBSOCK "qio-channel-websock"
-#define QIO_CHANNEL_WEBSOCK(obj)                                     \
-    OBJECT_CHECK(QIOChannelWebsock, (obj), TYPE_QIO_CHANNEL_WEBSOCK)
-
 typedef struct QIOChannelWebsock QIOChannelWebsock;
+DECLARE_INSTANCE_CHECKER(QIOChannelWebsock, QIO_CHANNEL_WEBSOCK,
+                         TYPE_QIO_CHANNEL_WEBSOCK)
+
 typedef union QIOChannelWebsockMask QIOChannelWebsockMask;
 
 union QIOChannelWebsockMask {
diff --git a/include/io/channel.h b/include/io/channel.h
index d4557f0930..245479548a 100644
--- a/include/io/channel.h
+++ b/include/io/channel.h
@@ -26,15 +26,9 @@
 #include "block/aio.h"
 
 #define TYPE_QIO_CHANNEL "qio-channel"
-#define QIO_CHANNEL(obj)                                    \
-    OBJECT_CHECK(QIOChannel, (obj), TYPE_QIO_CHANNEL)
-#define QIO_CHANNEL_CLASS(klass)                                    \
-    OBJECT_CLASS_CHECK(QIOChannelClass, klass, TYPE_QIO_CHANNEL)
-#define QIO_CHANNEL_GET_CLASS(obj)                                  \
-    OBJECT_GET_CLASS(QIOChannelClass, obj, TYPE_QIO_CHANNEL)
-
-typedef struct QIOChannel QIOChannel;
-typedef struct QIOChannelClass QIOChannelClass;
+OBJECT_DECLARE_TYPE(QIOChannel, QIOChannelClass,
+                    qio_channel, QIO_CHANNEL)
+
 
 #define QIO_CHANNEL_ERR_BLOCK -2
 
diff --git a/include/io/dns-resolver.h b/include/io/dns-resolver.h
index a475e978c8..e248fba5bd 100644
--- a/include/io/dns-resolver.h
+++ b/include/io/dns-resolver.h
@@ -26,15 +26,9 @@
 #include "io/task.h"
 
 #define TYPE_QIO_DNS_RESOLVER "qio-dns-resolver"
-#define QIO_DNS_RESOLVER(obj)                                    \
-    OBJECT_CHECK(QIODNSResolver, (obj), TYPE_QIO_DNS_RESOLVER)
-#define QIO_DNS_RESOLVER_CLASS(klass)                                    \
-    OBJECT_CLASS_CHECK(QIODNSResolverClass, klass, TYPE_QIO_DNS_RESOLVER)
-#define QIO_DNS_RESOLVER_GET_CLASS(obj)                                  \
-    OBJECT_GET_CLASS(QIODNSResolverClass, obj, TYPE_QIO_DNS_RESOLVER)
+OBJECT_DECLARE_SIMPLE_TYPE(QIODNSResolver, qio_dns_resolver,
+                           QIO_DNS_RESOLVER, ObjectClass)
 
-typedef struct QIODNSResolver QIODNSResolver;
-typedef struct QIODNSResolverClass QIODNSResolverClass;
 
 /**
  * QIODNSResolver:
@@ -139,9 +133,6 @@ struct QIODNSResolver {
     Object parent;
 };
 
-struct QIODNSResolverClass {
-    ObjectClass parent;
-};
 
 
 /**
diff --git a/include/io/net-listener.h b/include/io/net-listener.h
index fb101703e3..60fad29ff4 100644
--- a/include/io/net-listener.h
+++ b/include/io/net-listener.h
@@ -22,17 +22,12 @@
 #define QIO_NET_LISTENER_H
 
 #include "io/channel-socket.h"
+#include "qom/object.h"
 
 #define TYPE_QIO_NET_LISTENER "qio-net-listener"
-#define QIO_NET_LISTENER(obj)                                    \
-    OBJECT_CHECK(QIONetListener, (obj), TYPE_QIO_NET_LISTENER)
-#define QIO_NET_LISTENER_CLASS(klass)                                    \
-    OBJECT_CLASS_CHECK(QIONetListenerClass, klass, TYPE_QIO_NET_LISTENER)
-#define QIO_NET_LISTENER_GET_CLASS(obj)                                  \
-    OBJECT_GET_CLASS(QIONetListenerClass, obj, TYPE_QIO_NET_LISTENER)
+OBJECT_DECLARE_SIMPLE_TYPE(QIONetListener, qio_net_listener,
+                           QIO_NET_LISTENER, ObjectClass)
 
-typedef struct QIONetListener QIONetListener;
-typedef struct QIONetListenerClass QIONetListenerClass;
 
 typedef void (*QIONetListenerClientFunc)(QIONetListener *listener,
                                          QIOChannelSocket *sioc,
@@ -63,9 +58,6 @@ struct QIONetListener {
     GDestroyNotify io_notify;
 };
 
-struct QIONetListenerClass {
-    ObjectClass parent;
-};
 
 
 /**