From: Yang Hongyang <yanghy@cn.fujitsu.com>
To: xen-devel@lists.xen.org
Cc: wei.liu2@citrix.com, ian.campbell@citrix.com,
wency@cn.fujitsu.com, andrew.cooper3@citrix.com,
yunhong.jiang@intel.com, eddie.dong@intel.com,
guijianfeng@cn.fujitsu.com, rshriram@cs.ubc.ca,
ian.jackson@eu.citrix.com
Subject: [PATCH v7 COLO 14/18] COLO proxy: preresume, postresume and checkpoint
Date: Thu, 25 Jun 2015 14:31:08 +0800 [thread overview]
Message-ID: <1435213872-10698-15-git-send-email-yanghy@cn.fujitsu.com> (raw)
In-Reply-To: <1435213872-10698-1-git-send-email-yanghy@cn.fujitsu.com>
preresume, postresume and checkpoint
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
---
tools/libxl/libxl_colo.h | 3 +++
tools/libxl/libxl_colo_proxy.c | 57 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 60 insertions(+)
diff --git a/tools/libxl/libxl_colo.h b/tools/libxl/libxl_colo.h
index 46ca4cf..4e5f02a 100644
--- a/tools/libxl/libxl_colo.h
+++ b/tools/libxl/libxl_colo.h
@@ -36,4 +36,7 @@ extern void libxl__colo_save_teardown(libxl__egc *egc,
extern int colo_proxy_setup(libxl__colo_proxy_state *cps);
extern void colo_proxy_teardown(libxl__colo_proxy_state *cps);
+extern void colo_proxy_preresume(libxl__colo_proxy_state *cps);
+extern void colo_proxy_postresume(libxl__colo_proxy_state *cps);
+extern int colo_proxy_checkpoint(libxl__colo_proxy_state *cps);
#endif
diff --git a/tools/libxl/libxl_colo_proxy.c b/tools/libxl/libxl_colo_proxy.c
index 9f1243e..c8ff722 100644
--- a/tools/libxl/libxl_colo_proxy.c
+++ b/tools/libxl/libxl_colo_proxy.c
@@ -208,3 +208,60 @@ void colo_proxy_teardown(libxl__colo_proxy_state *cps)
cps->sock_fd = -1;
}
}
+
+/* ========= colo-proxy: preresume, postresume and checkpoint ========== */
+
+void colo_proxy_preresume(libxl__colo_proxy_state *cps)
+{
+ colo_proxy_send(cps, NULL, 0, COLO_CHECKPOINT);
+ /* TODO: need to handle if the call fails... */
+}
+
+void colo_proxy_postresume(libxl__colo_proxy_state *cps)
+{
+ /* nothing to do... */
+}
+
+
+typedef struct colo_msg {
+ bool is_checkpoint;
+} colo_msg;
+
+/*
+do checkpoint: return 1
+error: return -1
+do not checkpoint: return 0
+*/
+int colo_proxy_checkpoint(libxl__colo_proxy_state *cps)
+{
+ uint8_t *buff;
+ int64_t size;
+ struct nlmsghdr *h;
+ struct colo_msg *m;
+ int ret = -1;
+
+ size = colo_proxy_recv(cps, &buff, MSG_DONTWAIT);
+
+ /* timeout, return no checkpoint message. */
+ if (size <= 0) {
+ return 0;
+ }
+
+ h = (struct nlmsghdr *) buff;
+
+ if (h->nlmsg_type == NLMSG_ERROR) {
+ goto out;
+ }
+
+ if (h->nlmsg_len < NLMSG_LENGTH(sizeof(*m))) {
+ goto out;
+ }
+
+ m = NLMSG_DATA(h);
+
+ ret = m->is_checkpoint ? 1 : 0;
+
+out:
+ free(buff);
+ return ret;
+}
--
1.9.1
next prev parent reply other threads:[~2015-06-25 6:31 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-25 6:30 [PATCH v7 COLO 00/18] COarse-grain LOck-stepping Virtual Machines for Non-stop Service Yang Hongyang
2015-06-25 6:30 ` [PATCH v7 COLO 01/18] docs: add colo readme Yang Hongyang
2015-07-14 15:15 ` Ian Campbell
2015-06-25 6:30 ` [PATCH v7 COLO 02/18] tools/libxl: handle colo_context records in a libxl migration v2 stream Yang Hongyang
2015-07-14 15:19 ` Ian Campbell
2015-07-15 0:34 ` Yang Hongyang
2015-06-25 6:30 ` [PATCH v7 COLO 03/18] tools/libxl: write colo_context records into the stream Yang Hongyang
2015-06-25 6:30 ` [PATCH v7 COLO 04/18] secondary vm suspend/resume/checkpoint code Yang Hongyang
2015-06-25 6:30 ` [PATCH v7 COLO 05/18] primary " Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 06/18] libxc/restore: support COLO restore Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 07/18] libxc/restore: send dirty bitmap to primary when checkpoint under colo Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 08/18] send store mfn and console mfn to xl before resuming secondary vm Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 09/18] libxc/save: support COLO save Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 10/18] implement the cmdline for COLO Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 11/18] Support colo mode for qemu disk Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 12/18] COLO: use qemu block replication Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 13/18] COLO proxy: implement setup/teardown of COLO proxy module Yang Hongyang
2015-06-25 6:31 ` Yang Hongyang [this message]
2015-06-25 6:31 ` [PATCH v7 COLO 15/18] COLO nic: implement COLO nic subkind Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 16/18] setup and control colo proxy on primary side Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 17/18] setup and control colo proxy on secondary side Yang Hongyang
2015-06-25 6:31 ` [PATCH v7 COLO 18/18] cmdline switches and config vars to control colo-proxy Yang Hongyang
2015-07-14 15:55 ` [PATCH v7 COLO 00/18] COarse-grain LOck-stepping Virtual Machines for Non-stop Service Ian Campbell
2015-07-15 0:41 ` Yang Hongyang
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