[PATCH v4 --for 4.6 COLOPre 12/25] tools/libxl: introduce enum type libxl_checkpointed_stream

[Yang Hongyang <yanghy@cn.fujitsu.com>]

introduce enum type libxl_checkpointed_stream in IDL.
rename the last argument of migrate_receive from "remus" to
"checkpointed" since the semantics of this parameter has
changed.

NOTE:
 libxl_domain_restore_params isn't changed here,
 checkpointed_stream is still an int.
 It has to change eventually and other callers will have to be
 updated to cope (and there should be LIBXL_HAVE_...).

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
---
 tools/libxl/libxl_types.idl |  5 +++++
 tools/libxl/xl_cmdimpl.c    | 13 +++++++------
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl
index bc0c4ef..94c230e 100644
--- a/tools/libxl/libxl_types.idl
+++ b/tools/libxl/libxl_types.idl
@@ -207,6 +207,11 @@ libxl_hdtype = Enumeration("hdtype", [
     (2, "AHCI"),
     ], init_val = "LIBXL_HDTYPE_IDE")
 
+libxl_checkpointed_stream = Enumeration("checkpointed_stream", [
+    (0, "NONE"),
+    (1, "REMUS"),
+    ])
+
 #
 # Complex libxl types
 #
diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 13e154d..aa641fd 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -4282,7 +4282,7 @@ static void migrate_domain(uint32_t domid, const char *rune, int debug,
 }
 
 static void migrate_receive(int debug, int daemonize, int monitor,
-                            int send_fd, int recv_fd, int remus)
+                            int send_fd, int recv_fd, int checkpointed)
 {
     uint32_t domid;
     int rc, rc2;
@@ -4307,7 +4307,7 @@ static void migrate_receive(int debug, int daemonize, int monitor,
     dom_info.paused = 1;
     dom_info.migrate_fd = recv_fd;
     dom_info.migration_domname_r = &migration_domname;
-    dom_info.checkpointed_stream = remus;
+    dom_info.checkpointed_stream = checkpointed;
 
     rc = create_domain(&dom_info);
     if (rc < 0) {
@@ -4318,7 +4318,7 @@ static void migrate_receive(int debug, int daemonize, int monitor,
 
     domid = rc;
 
-    if (remus) {
+    if (checkpointed) {
         /* If we are here, it means that the sender (primary) has crashed.
          * TODO: Split-Brain Check.
          */
@@ -4489,7 +4489,8 @@ int main_restore(int argc, char **argv)
 
 int main_migrate_receive(int argc, char **argv)
 {
-    int debug = 0, daemonize = 1, monitor = 1, remus = 0;
+    int debug = 0, daemonize = 1, monitor = 1;
+    int checkpointed = LIBXL_CHECKPOINTED_STREAM_NONE;
     int opt;
 
     SWITCH_FOREACH_OPT(opt, "Fedr", NULL, "migrate-receive", 0) {
@@ -4504,7 +4505,7 @@ int main_migrate_receive(int argc, char **argv)
         debug = 1;
         break;
     case 'r':
-        remus = 1;
+        checkpointed = LIBXL_CHECKPOINTED_STREAM_REMUS;
         break;
     }
 
@@ -4514,7 +4515,7 @@ int main_migrate_receive(int argc, char **argv)
     }
     migrate_receive(debug, daemonize, monitor,
                     STDOUT_FILENO, STDIN_FILENO,
-                    remus);
+                    checkpointed);
 
     return 0;
 }
-- 
1.9.1