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[PATCH 1/2] yank: Remove dependency on qiochannel
|
From: |
Lukas Straub |
|
Subject: |
[PATCH 1/2] yank: Remove dependency on qiochannel |
|
Date: |
Tue, 23 Mar 2021 18:52:42 +0100 |
Remove dependency on qiochannel by removing yank_generic_iochannel and
letting migration and chardev use their own yank function for
iochannel.
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
---
MAINTAINERS | 1 +
chardev/char-socket.c | 21 ++++++++++++++-------
include/qemu/yank.h | 10 ----------
migration/channel.c | 6 ++++--
migration/meson.build | 1 +
migration/multifd.c | 3 ++-
migration/qemu-file-channel.c | 3 ++-
migration/yank_functions.c | 20 ++++++++++++++++++++
migration/yank_functions.h | 17 +++++++++++++++++
stubs/yank.c | 6 ------
util/yank.c | 8 --------
11 files changed, 61 insertions(+), 35 deletions(-)
create mode 100644 migration/yank_functions.c
create mode 100644 migration/yank_functions.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 9147e9a429..455775c4a3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2821,6 +2821,7 @@ M: Lukas Straub <lukasstraub2@web.de>
S: Odd fixes
F: util/yank.c
F: stubs/yank.c
+F: migration/yank_functions*
F: include/qemu/yank.h
F: qapi/yank.json
diff --git a/chardev/char-socket.c b/chardev/char-socket.c
index f618bdec28..1d455ecca4 100644
--- a/chardev/char-socket.c
+++ b/chardev/char-socket.c
@@ -402,6 +402,13 @@ static void remove_hup_source(SocketChardev *s)
}
}
+static void char_socket_yank_iochannel(void *opaque)
+{
+ QIOChannel *ioc = QIO_CHANNEL(opaque);
+
+ qio_channel_shutdown(ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL);
+}
+
static void tcp_chr_free_connection(Chardev *chr)
{
SocketChardev *s = SOCKET_CHARDEV(chr);
@@ -424,7 +431,7 @@ static void tcp_chr_free_connection(Chardev *chr)
(s->state == TCP_CHARDEV_STATE_CONNECTING
|| s->state == TCP_CHARDEV_STATE_CONNECTED)) {
yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label),
- yank_generic_iochannel,
+ char_socket_yank_iochannel,
QIO_CHANNEL(s->sioc));
}
object_unref(OBJECT(s->sioc));
@@ -946,7 +953,7 @@ static int tcp_chr_add_client(Chardev *chr, int fd)
tcp_chr_set_client_ioc_name(chr, sioc);
if (s->registered_yank) {
yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
- yank_generic_iochannel,
+ char_socket_yank_iochannel,
QIO_CHANNEL(sioc));
}
ret = tcp_chr_new_client(chr, sioc);
@@ -965,7 +972,7 @@ static void tcp_chr_accept(QIONetListener *listener,
tcp_chr_set_client_ioc_name(chr, cioc);
if (s->registered_yank) {
yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
- yank_generic_iochannel,
+ char_socket_yank_iochannel,
QIO_CHANNEL(cioc));
}
tcp_chr_new_client(chr, cioc);
@@ -985,7 +992,7 @@ static int tcp_chr_connect_client_sync(Chardev *chr, Error
**errp)
}
if (s->registered_yank) {
yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
- yank_generic_iochannel,
+ char_socket_yank_iochannel,
QIO_CHANNEL(sioc));
}
tcp_chr_new_client(chr, sioc);
@@ -1005,7 +1012,7 @@ static void tcp_chr_accept_server_sync(Chardev *chr)
tcp_chr_set_client_ioc_name(chr, sioc);
if (s->registered_yank) {
yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
- yank_generic_iochannel,
+ char_socket_yank_iochannel,
QIO_CHANNEL(sioc));
}
tcp_chr_new_client(chr, sioc);
@@ -1138,7 +1145,7 @@ static void qemu_chr_socket_connected(QIOTask *task, void
*opaque)
tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED);
if (s->registered_yank) {
yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label),
- yank_generic_iochannel,
+ char_socket_yank_iochannel,
QIO_CHANNEL(sioc));
}
check_report_connect_error(chr, err);
@@ -1176,7 +1183,7 @@ static void tcp_chr_connect_client_async(Chardev *chr)
tcp_chr_set_client_ioc_name(chr, sioc);
if (s->registered_yank) {
yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
- yank_generic_iochannel,
+ char_socket_yank_iochannel,
QIO_CHANNEL(sioc));
}
/*
diff --git a/include/qemu/yank.h b/include/qemu/yank.h
index 5b93c70cbf..5375a1f195 100644
--- a/include/qemu/yank.h
+++ b/include/qemu/yank.h
@@ -73,16 +73,6 @@ void yank_unregister_function(const YankInstance *instance,
YankFn *func,
void *opaque);
-/**
- * yank_generic_iochannel: Generic yank function for iochannel
- *
- * This is a generic yank function which will call qio_channel_shutdown on the
- * provided QIOChannel.
- *
- * @opaque: QIOChannel to shutdown
- */
-void yank_generic_iochannel(void *opaque);
-
#define BLOCKDEV_YANK_INSTANCE(the_node_name) (&(YankInstance) { \
.type = YANK_INSTANCE_TYPE_BLOCK_NODE, \
.u.block_node.node_name = (the_node_name) })
diff --git a/migration/channel.c b/migration/channel.c
index 35fe234e9c..c9ee902021 100644
--- a/migration/channel.c
+++ b/migration/channel.c
@@ -20,6 +20,7 @@
#include "io/channel-tls.h"
#include "io/channel-socket.h"
#include "qemu/yank.h"
+#include "yank_functions.h"
/**
* @migration_channel_process_incoming - Create new incoming migration channel
@@ -38,7 +39,8 @@ void migration_channel_process_incoming(QIOChannel *ioc)
ioc, object_get_typename(OBJECT(ioc)));
if (object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_SOCKET)) {
- yank_register_function(MIGRATION_YANK_INSTANCE, yank_generic_iochannel,
+ yank_register_function(MIGRATION_YANK_INSTANCE,
+ migration_yank_iochannel,
QIO_CHANNEL(ioc));
}
@@ -76,7 +78,7 @@ void migration_channel_connect(MigrationState *s,
if (!error) {
if (object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_SOCKET)) {
yank_register_function(MIGRATION_YANK_INSTANCE,
- yank_generic_iochannel,
+ migration_yank_iochannel,
QIO_CHANNEL(ioc));
}
diff --git a/migration/meson.build b/migration/meson.build
index 9645f44005..2cfa8eed72 100644
--- a/migration/meson.build
+++ b/migration/meson.build
@@ -6,6 +6,7 @@ migration_files = files(
'vmstate.c',
'qemu-file-channel.c',
'qemu-file.c',
+ 'yank_functions.c',
)
softmmu_ss.add(migration_files)
diff --git a/migration/multifd.c b/migration/multifd.c
index 03527c564c..a6677c45c8 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -27,6 +27,7 @@
#include "qemu/yank.h"
#include "io/channel-socket.h"
+#include "yank_functions.h"
/* Multiple fd's */
@@ -989,7 +990,7 @@ int multifd_load_cleanup(Error **errp)
if (object_dynamic_cast(OBJECT(p->c), TYPE_QIO_CHANNEL_SOCKET)
&& OBJECT(p->c)->ref == 1) {
yank_unregister_function(MIGRATION_YANK_INSTANCE,
- yank_generic_iochannel,
+ migration_yank_iochannel,
QIO_CHANNEL(p->c));
}
diff --git a/migration/qemu-file-channel.c b/migration/qemu-file-channel.c
index afc3a7f642..876d05a540 100644
--- a/migration/qemu-file-channel.c
+++ b/migration/qemu-file-channel.c
@@ -28,6 +28,7 @@
#include "io/channel-socket.h"
#include "qemu/iov.h"
#include "qemu/yank.h"
+#include "yank_functions.h"
static ssize_t channel_writev_buffer(void *opaque,
@@ -108,7 +109,7 @@ static int channel_close(void *opaque, Error **errp)
if (object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_SOCKET)
&& OBJECT(ioc)->ref == 1) {
yank_unregister_function(MIGRATION_YANK_INSTANCE,
- yank_generic_iochannel,
+ migration_yank_iochannel,
QIO_CHANNEL(ioc));
}
object_unref(OBJECT(ioc));
diff --git a/migration/yank_functions.c b/migration/yank_functions.c
new file mode 100644
index 0000000000..96c90e17dc
--- /dev/null
+++ b/migration/yank_functions.c
@@ -0,0 +1,20 @@
+/*
+ * migration yank functions
+ *
+ * Copyright (c) Lukas Straub <lukasstraub2@web.de>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "io/channel.h"
+#include "yank_functions.h"
+
+void migration_yank_iochannel(void *opaque)
+{
+ QIOChannel *ioc = QIO_CHANNEL(opaque);
+
+ qio_channel_shutdown(ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL);
+}
diff --git a/migration/yank_functions.h b/migration/yank_functions.h
new file mode 100644
index 0000000000..055ea22523
--- /dev/null
+++ b/migration/yank_functions.h
@@ -0,0 +1,17 @@
+/*
+ * migration yank functions
+ *
+ * Copyright (c) Lukas Straub <lukasstraub2@web.de>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+/**
+ * migration_yank_iochannel: yank function for iochannel
+ *
+ * This yank function will call qio_channel_shutdown on the provided
QIOChannel.
+ *
+ * @opaque: QIOChannel to shutdown
+ */
+void migration_yank_iochannel(void *opaque);
diff --git a/stubs/yank.c b/stubs/yank.c
index 6090416065..11b24fc057 100644
--- a/stubs/yank.c
+++ b/stubs/yank.c
@@ -21,9 +21,3 @@ void yank_unregister_function(const YankInstance *instance,
void *opaque)
{
}
-
-void yank_generic_iochannel(void *opaque)
-{
-}
-
-
diff --git a/util/yank.c b/util/yank.c
index fc08f65209..abf47c346d 100644
--- a/util/yank.c
+++ b/util/yank.c
@@ -15,7 +15,6 @@
#include "qapi/qapi-commands-yank.h"
#include "qapi/qapi-visit-yank.h"
#include "qapi/clone-visitor.h"
-#include "io/channel.h"
#include "qemu/yank.h"
struct YankFuncAndParam {
@@ -151,13 +150,6 @@ void yank_unregister_function(const YankInstance *instance,
abort();
}
-void yank_generic_iochannel(void *opaque)
-{
- QIOChannel *ioc = QIO_CHANNEL(opaque);
-
- qio_channel_shutdown(ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL);
-}
-
void qmp_yank(YankInstanceList *instances,
Error **errp)
{
--
2.30.2
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