[Xen-devel] [PATCH v2 1/4] libxl: colo: rearrange things in header files

[Wei Liu <wei.liu2@xxxxxxxxxx>]

We need to separate COLO code from common code as clean as possible.
With this patch, all COLO structures are now in libxl_colo.h.

It does the following:
1. Move two typedefs for libxl__domain_create_state{,cb} back to
   libxl_internal.h.
2. Move libxl__colo_save_state to libxl_colo.h.
3. Include libxl_internal.h in libxl_colo.h.
4. Move a bunch of colo typedefs to the top of libxl_internal.h.
5. Move the inclusion of libxl_colo.h to the right place in
   libxl_internal.h.

Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/libxl/libxl_colo.h     | 40 +++++++++++++++++++++++++---------------
 tools/libxl/libxl_internal.h | 36 ++++++++++++------------------------
 2 files changed, 37 insertions(+), 39 deletions(-)

diff --git a/tools/libxl/libxl_colo.h b/tools/libxl/libxl_colo.h
index 30fd1dc..4f6a612 100644
--- a/tools/libxl/libxl_colo.h
+++ b/tools/libxl/libxl_colo.h
@@ -16,13 +16,9 @@
 #ifndef LIBXL_COLO_H
 #define LIBXL_COLO_H
 
+#include "libxl_internal.h"
 #include <linux/netlink.h>
 
-struct libxl__ao;
-struct libxl__egc;
-struct libxl__colo_save_state;
-struct libxl__checkpoint_devices_state;
-
 /* Consistent with the new COLO netlink channel in kernel side */
 #define NETLINK_COLO 28
 
@@ -65,16 +61,15 @@ enum colo_netlink_op {
     COLO_PROXY_RESET, /* UNUSED, will be used for continuous FT */
 };
 
-typedef struct libxl__colo_device_nic {
+struct libxl__colo_device_nic {
     int devid;
     const char *vif;
-} libxl__colo_device_nic;
+};
 
-typedef struct libxl__colo_qdisk {
+struct libxl__colo_qdisk {
     bool setuped;
-} libxl__colo_qdisk;
+};
 
-typedef struct libxl__colo_proxy_state libxl__colo_proxy_state;
 struct libxl__colo_proxy_state {
     /* set by caller of colo_proxy_setup */
     struct libxl__ao *ao;
@@ -83,12 +78,27 @@ struct libxl__colo_proxy_state {
     int index;
 };
 
-typedef struct libxl__domain_create_state libxl__domain_create_state;
-typedef void libxl__domain_create_cb(struct libxl__egc *egc,
-                                     libxl__domain_create_state *dcs,
-                                     int rc, uint32_t domid);
+struct libxl__colo_save_state {
+    int send_fd;
+    int recv_fd;
+    char *colo_proxy_script;
+
+    /* private */
+    libxl__stream_read_state srs;
+    void (*callback)(libxl__egc *, libxl__colo_save_state *, int);
+    bool svm_running;
+    bool paused;
+
+    /* private, used by qdisk block replication */
+    bool qdisk_used;
+    bool qdisk_setuped;
+
+    /* private, used by colo-proxy */
+    libxl__colo_proxy_state cps;
+    libxl__ev_child child;
+};
+
 
-typedef struct libxl__colo_restore_state libxl__colo_restore_state;
 typedef void libxl__colo_callback(struct libxl__egc *egc,
                                   libxl__colo_restore_state *crs, int rc);
 
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index 7df2711..0107298 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -87,8 +87,6 @@
 #include "_libxl_types_internal.h"
 #include "_libxl_types_internal_json.h"
 
-#include "libxl_colo.h"
-
 #define LIBXL_INIT_TIMEOUT 10
 #define LIBXL_DESTROY_TIMEOUT 10
 #define LIBXL_HOTPLUG_TIMEOUT 40
@@ -184,6 +182,17 @@ typedef struct libxl__aop_occurred libxl__aop_occurred;
 typedef struct libxl__osevent_hook_nexus libxl__osevent_hook_nexus;
 typedef struct libxl__osevent_hook_nexi libxl__osevent_hook_nexi;
 
+typedef struct libxl__domain_create_state libxl__domain_create_state;
+typedef void libxl__domain_create_cb(struct libxl__egc *egc,
+                                     libxl__domain_create_state *dcs,
+                                     int rc, uint32_t domid);
+
+typedef struct libxl__colo_device_nic libxl__colo_device_nic;
+typedef struct libxl__colo_qdisk libxl__colo_qdisk;
+typedef struct libxl__colo_proxy_state libxl__colo_proxy_state;
+typedef struct libxl__colo_save_state libxl__colo_save_state;
+typedef struct libxl__colo_restore_state libxl__colo_restore_state;
+
 _hidden void libxl__alloc_failed(libxl_ctx *, const char *func,
                          size_t nmemb, size_t size) __attribute__((noreturn));
   /* func, size and nmemb are used only in the log message.
@@ -3134,6 +3143,7 @@ libxl__stream_read_inuse(const libxl__stream_read_state 
*stream)
     return stream->running;
 }
 
+#include "libxl_colo.h"
 
 /*----- Domain suspend (save) state structure -----*/
 /*
@@ -3210,28 +3220,6 @@ libxl__stream_write_inuse(const 
libxl__stream_write_state *stream)
     return stream->running;
 }
 
-/*----- colo related state structure -----*/
-typedef struct libxl__colo_save_state libxl__colo_save_state;
-struct libxl__colo_save_state {
-    int send_fd;
-    int recv_fd;
-    char *colo_proxy_script;
-
-    /* private */
-    libxl__stream_read_state srs;
-    void (*callback)(libxl__egc *, libxl__colo_save_state *, int);
-    bool svm_running;
-    bool paused;
-
-    /* private, used by qdisk block replication */
-    bool qdisk_used;
-    bool qdisk_setuped;
-
-    /* private, used by colo-proxy */
-    libxl__colo_proxy_state cps;
-    libxl__ev_child child;
-};
-
 typedef struct libxl__logdirty_switch {
     /* Set by caller of libxl__domain_common_switch_qemu_logdirty */
     libxl__ao *ao;
-- 
2.1.4


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