[PATCH 09/15] qemu: Implement virSaveCookie object and callbacks

[Jiri Denemark <jdenemar@xxxxxxxxxx>]

This patch implements a new save cookie object and callbacks for qemu
driver. The actual useful content will be added in the object later.

Signed-off-by: Jiri Denemark <jdenemar@xxxxxxxxxx>
---
 src/qemu/qemu_conf.c   |  2 +-
 src/qemu/qemu_domain.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++--
 src/qemu/qemu_domain.h |  9 ++++++
 3 files changed, 86 insertions(+), 4 deletions(-)

diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index d02e776b0..73c33d678 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -911,7 +911,7 @@ virQEMUDriverCreateXMLConf(virQEMUDriverPtr driver)
                                  &virQEMUDriverPrivateDataCallbacks,
                                  &virQEMUDriverDomainXMLNamespace,
                                  &virQEMUDriverDomainABIStability,
-                                 NULL);
+                                 &virQEMUDriverDomainSaveCookie);
 }
 
 
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 814232164..80e9fea98 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -122,11 +122,13 @@ struct _qemuDomainLogContext {
 };
 
 static virClassPtr qemuDomainLogContextClass;
+static virClassPtr qemuDomainSaveCookieClass;
 
 static void qemuDomainLogContextDispose(void *obj);
+static void qemuDomainSaveCookieDispose(void *obj);
 
 static int
-qemuDomainLogContextOnceInit(void)
+qemuDomainOnceInit(void)
 {
     if (!(qemuDomainLogContextClass = virClassNew(virClassForObject(),
                                                  "qemuDomainLogContext",
@@ -134,10 +136,16 @@ qemuDomainLogContextOnceInit(void)
                                                  qemuDomainLogContextDispose)))
         return -1;
 
+    if (!(qemuDomainSaveCookieClass = virClassNew(virClassForObject(),
+                                                  "qemuDomainSaveCookie",
+                                                  sizeof(qemuDomainSaveCookie),
+                                                  qemuDomainSaveCookieDispose)))
+        return -1;
+
     return 0;
 }
 
-VIR_ONCE_GLOBAL_INIT(qemuDomainLogContext)
+VIR_ONCE_GLOBAL_INIT(qemuDomain)
 
 static void
 qemuDomainLogContextDispose(void *obj)
@@ -4554,7 +4562,7 @@ qemuDomainLogContextPtr qemuDomainLogContextNew(virQEMUDriverPtr driver,
     virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
     qemuDomainLogContextPtr ctxt = NULL;
 
-    if (qemuDomainLogContextInitialize() < 0)
+    if (qemuDomainInitialize() < 0)
         goto cleanup;
 
     if (!(ctxt = virObjectNew(qemuDomainLogContextClass)))
@@ -9105,3 +9113,68 @@ qemuDomainGetStorageSourceByDevstr(const char *devstr,
     VIR_FREE(target);
     return src;
 }
+
+
+static void
+qemuDomainSaveCookieDispose(void *obj)
+{
+    qemuDomainSaveCookiePtr cookie = obj;
+
+    VIR_DEBUG("cookie=%p", cookie);
+}
+
+
+qemuDomainSaveCookiePtr
+qemuDomainSaveCookieNew(virDomainObjPtr vm ATTRIBUTE_UNUSED)
+{
+    qemuDomainSaveCookiePtr cookie = NULL;
+
+    if (qemuDomainInitialize() < 0)
+        goto error;
+
+    if (!(cookie = virObjectNew(qemuDomainSaveCookieClass)))
+        goto error;
+
+    VIR_DEBUG("Save cookie %p", cookie);
+
+    return cookie;
+
+ error:
+    virObjectUnref(cookie);
+    return NULL;
+}
+
+
+static int
+qemuDomainSaveCookieParse(xmlXPathContextPtr ctxt ATTRIBUTE_UNUSED,
+                          virObjectPtr *obj)
+{
+    qemuDomainSaveCookiePtr cookie = NULL;
+
+    if (qemuDomainInitialize() < 0)
+        goto error;
+
+    if (!(cookie = virObjectNew(qemuDomainSaveCookieClass)))
+        goto error;
+
+    *obj = (virObjectPtr) cookie;
+    return 0;
+
+ error:
+    virObjectUnref(cookie);
+    return -1;
+}
+
+
+static int
+qemuDomainSaveCookieFormat(virBufferPtr buf ATTRIBUTE_UNUSED,
+                           virObjectPtr obj ATTRIBUTE_UNUSED)
+{
+    return 0;
+}
+
+
+virSaveCookieCallbacks virQEMUDriverDomainSaveCookie = {
+    .parse = qemuDomainSaveCookieParse,
+    .format = qemuDomainSaveCookieFormat,
+};
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index d0e2e0628..cc2e21bdf 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -416,6 +416,14 @@ struct qemuProcessEvent {
 typedef struct _qemuDomainLogContext qemuDomainLogContext;
 typedef qemuDomainLogContext *qemuDomainLogContextPtr;
 
+typedef struct _qemuDomainSaveCookie qemuDomainSaveCookie;
+typedef qemuDomainSaveCookie *qemuDomainSaveCookiePtr;
+struct _qemuDomainSaveCookie {
+    virObject parent;
+};
+
+qemuDomainSaveCookiePtr qemuDomainSaveCookieNew(virDomainObjPtr vm);
+
 const char *qemuDomainAsyncJobPhaseToString(qemuDomainAsyncJob job,
                                             int phase);
 int qemuDomainAsyncJobPhaseFromString(qemuDomainAsyncJob job,
@@ -638,6 +646,7 @@ extern virDomainXMLPrivateDataCallbacks virQEMUDriverPrivateDataCallbacks;
 extern virDomainXMLNamespace virQEMUDriverDomainXMLNamespace;
 extern virDomainDefParserConfig virQEMUDriverDomainDefParserConfig;
 extern virDomainABIStability virQEMUDriverDomainABIStability;
+extern virSaveCookieCallbacks virQEMUDriverDomainSaveCookie;
 
 int qemuDomainUpdateDeviceList(virQEMUDriverPtr driver,
                                virDomainObjPtr vm, int asyncJob);
-- 
2.13.0

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