[Libvirt-cim] [PATCH 3 of 3] Migration Job Indication
Jay Gagnon
grendel at linux.vnet.ibm.com
Fri Mar 7 15:00:55 UTC 2008
# HG changeset patch
# User Jay Gagnon <grendel at linux.vnet.ibm.com>
# Date 1204901289 18000
# Node ID 1ccab6e9470c08a4dd6f411078325d3574cd9abf
# Parent 38cd28b072e3416714053bd049c91a55fca9c0c3
Migration Job Indication
We need to add some more indication to VS_MigrationService. ComputerSystemMigrationIndication is getting broken up into ComputerSystemMigrationJob[Created|Modified|Deleted]Indication, so that we can give clients that did not initiate the migration a better idea of what's going on. Each migration will fire a couple additional indications now.
Changes required to make this happen:
Enumeration of supported indication types.
A new function ind_type_to_name. Converts int from the enumeration to an indication name.
A new function ref_from_job (migration_job struct -> objectpath). This is mainly existing functionality but is now needed in two places.
A new function raise_deleted_ind. The work required to raise the Deleted indication was cluttering up migrate_vs so I broke it out.
Changes to prepare_indication and raise_indication to accomodate the new indication types.
Then of course a few lines to actually use the new stuff.
Signed-off-by: Jay Gagnon <grendel at linux.vnet.ibm.com>
diff -r 38cd28b072e3 -r 1ccab6e9470c src/Virt_VSMigrationService.c
--- a/src/Virt_VSMigrationService.c Fri Mar 07 09:34:32 2008 -0500
+++ b/src/Virt_VSMigrationService.c Fri Mar 07 09:48:09 2008 -0500
@@ -51,6 +51,12 @@
const static CMPIBroker *_BROKER;
+enum {
+ MIG_CREATED,
+ MIG_MODIFIED,
+ MIG_DELETED,
+};
+
struct migration_job {
CMPIContext *context;
char *domain;
@@ -271,23 +277,49 @@ static CMPIStatus vs_migratable_system(C
return vs_migratable(ref, name, dname, results, argsout);
}
+static char *ind_type_to_name(int ind_type)
+{
+ char *ind_name = NULL;
+
+ switch (ind_type) {
+ case MIG_CREATED:
+ ind_name = "ComputerSystemMigrationJobCreatedIndication";
+ break;
+ case MIG_DELETED:
+ ind_name = "ComputerSystemMigrationJobDeletedIndication";
+ break;
+ case MIG_MODIFIED:
+ ind_name = "ComputerSystemMigrationJobModifiedIndication";
+ break;
+ }
+
+ return ind_name;
+}
+
static bool raise_indication(const CMPIContext *context,
- const char *base_type,
+ int ind_type,
const char *ns,
CMPIInstance *inst,
CMPIInstance *ind)
{
char *type;
CMPIStatus s;
+ char *ind_name = NULL;
+
+ ind_name = ind_type_to_name(ind_type);
CU_DEBUG("Setting SourceInstance");
CMSetProperty(ind, "SourceInstance",
(CMPIValue *)&inst, CMPI_instance);
/* Seems like this shouldn't be hardcoded. */
- type = get_typed_class("Xen", base_type);
-
+ type = get_typed_class("Xen", ind_name);
+
+ CU_DEBUG("stdi_raise");
+ CU_DEBUG("broker %p, context %p, type %s, ns %s, ind %p",
+ _BROKER, context, type, ns, ind);
s = stdi_raise_indication(_BROKER, context, type, ns, ind);
+ CU_DEBUG("raise done");
free(type);
@@ -297,41 +329,95 @@ static CMPIInstance *prepare_indication(
static CMPIInstance *prepare_indication(const CMPIBroker *broker,
CMPIInstance *inst,
char *ns,
+ int ind_type,
CMPIStatus *s)
{
+ char *ind_name = NULL;
CMPIInstance *ind = NULL;
CMPIInstance *prev_inst = NULL;
- CU_DEBUG("Creating indication.");
+ ind_name = ind_type_to_name(ind_type);
+
+ CU_DEBUG("Creating indication: '%s:%s_%s'",
+ ns, "Xen", ind_name);
/* Prefix needs to be dynamic */
- ind = get_typed_instance(broker,
- "Xen",
- "ComputerSystemMigrationIndication",
- ns);
+ ind = get_typed_instance(broker, "Xen", ind_name, ns);
/* Prefix needs to be dynamic */
if (ind == NULL) {
CU_DEBUG("Failed to create ind, type '%s:%s_%s'",
- ns,
- "Xen",
- "ComputerSystemMigrationIndication");
- }
-
- /* Need to copy job inst before attaching as PreviousInstance because
- otherwise the changes we are about to make to job inst are made
- to PreviousInstance as well. */
- prev_inst = cu_dup_instance(_BROKER, inst, s);
- if (s->rc != CMPI_RC_OK || prev_inst == NULL) {
- CU_DEBUG("dup_instance failed (%i:%s)", s->rc, s->msg);
- ind = NULL;
- goto out;
- }
-
- CU_DEBUG("Setting PreviousInstance");
- CMSetProperty(ind, "PreviousInstance",
- (CMPIValue *)&prev_inst, CMPI_instance);
+ ns, "Xen", ind_name);
+ }
+
+ if (ind_type == MIG_MODIFIED) {
+ /* Need to copy job inst before attaching as PreviousInstance because
+ otherwise the changes we are about to make to job inst are made
+ to PreviousInstance as well. */
+ prev_inst = cu_dup_instance(_BROKER, inst, s);
+ if (s->rc != CMPI_RC_OK || prev_inst == NULL) {
+ CU_DEBUG("dup_instance failed (%i:%s)", s->rc, s->msg);
+ ind = NULL;
+ goto out;
+ }
+ CU_DEBUG("Setting PreviousInstance");
+ CMSetProperty(ind, "PreviousInstance",
+ (CMPIValue *)&prev_inst, CMPI_instance);
+ }
out:
return ind;
+}
+
+static CMPIObjectPath *ref_from_job(struct migration_job *job,
+ CMPIStatus *s)
+{
+ CMPIObjectPath *ref = NULL;
+
+ ref = CMNewObjectPath(_BROKER,
+ job->ref_ns,
+ "Virt_MigrationJob",
+ s);
+ if (s->rc != CMPI_RC_OK) {
+ CU_DEBUG("Failed to create job ref for update");
+ goto out;
+ }
+
+ CMSetNameSpace(ref, job->ref_ns);
+ CMAddKey(ref, "InstanceID", (CMPIValue *)job->uuid, CMPI_chars);
+
+ CU_DEBUG("Getting job instance %s", job->uuid);
+ CU_DEBUG(" REF: %s", CMGetCharPtr(CMObjectPathToString(ref, NULL)));
+
+ out:
+ return ref;
+}
+
+static void raise_deleted_ind(struct migration_job *job)
+{
+ CMPIInstance *ind = NULL;
+ CMPIInstance *inst = NULL;
+ CMPIObjectPath *ref = NULL;
+ CMPIStatus s = {CMPI_RC_OK, NULL};
+ bool rc;
+
+ ref = ref_from_job(job, &s);
+ if ((ref == NULL) || (s.rc != CMPI_RC_OK)) {
+ CU_DEBUG("Failed to get job ref for delete");
+ return;
+ }
+ inst = CBGetInstance(_BROKER, job->context, ref, NULL, &s);
+ if ((inst == NULL) || (s.rc != CMPI_RC_OK)) {
+ CU_DEBUG("Failed to get job instance for delete (%i)", s.rc);
+ return;
+ }
+
+ ind = prepare_indication(_BROKER, inst, job->ref_ns, MIG_DELETED, &s);
+
+ rc = raise_indication(job->context, MIG_MODIFIED, job->ref_ns,
+ inst, ind);
+ if (!rc)
+ CU_DEBUG("Failed to raise indication");
+
+ return;
}
static void migrate_job_set_state(struct migration_job *job,
@@ -344,27 +430,18 @@ static void migrate_job_set_state(struct
CMPIStatus s;
CMPIObjectPath *op;
- op = CMNewObjectPath(_BROKER,
- job->ref_ns,
- "Virt_MigrationJob",
- &s);
- if (s.rc != CMPI_RC_OK) {
- CU_DEBUG("Failed to create job path for update");
+ op = ref_from_job(job, &s);
+ if ((op == NULL) || (s.rc != CMPI_RC_OK)) {
+ CU_DEBUG("Failed to get job ref for update");
return;
}
-
- CMSetNameSpace(op, job->ref_ns);
- CMAddKey(op, "InstanceID", (CMPIValue *)job->uuid, CMPI_chars);
-
- CU_DEBUG("Getting job instance %s", job->uuid);
- CU_DEBUG(" OP: %s", CMGetCharPtr(CMObjectPathToString(op, NULL)));
inst = CBGetInstance(_BROKER, job->context, op, NULL, &s);
if ((inst == NULL) || (s.rc != CMPI_RC_OK)) {
CU_DEBUG("Failed to get job instance for update (%i)", s.rc);
return;
}
- ind = prepare_indication(_BROKER, inst, job->ref_ns, &s);
+ ind = prepare_indication(_BROKER, inst, job->ref_ns, MIG_MODIFIED, &s);
CMSetProperty(inst, "JobState",
(CMPIValue *)&state, CMPI_uint16);
@@ -378,11 +455,8 @@ static void migrate_job_set_state(struct
CU_DEBUG("Failed to update job instance: %s",
CMGetCharPtr(s.msg));
- rc = raise_indication(job->context,
- "ComputerSystemMigrationIndication",
- job->ref_ns,
- inst,
- ind);
+ rc = raise_indication(job->context, MIG_MODIFIED, job->ref_ns,
+ inst, ind);
if (!rc)
CU_DEBUG("Failed to raise indication");
}
@@ -549,6 +623,8 @@ static CMPIStatus migrate_vs(struct migr
"");
out:
+ raise_deleted_ind(job);
+
free(uri);
free(xml);
virDomainFree(dom);
@@ -714,6 +790,9 @@ static CMPIStatus migrate_do(const CMPIO
struct migration_job *job;
CMPI_THREAD_TYPE thread;
uint32_t retcode = 1;
+ CMPIInstance *ind = NULL;
+ CMPIInstance *inst = NULL;
+ bool rc;
job = migrate_job_prepare(context, ref, domain, host, type);
if (job == NULL) {
@@ -728,8 +807,20 @@ static CMPIStatus migrate_do(const CMPIO
s = migrate_create_job_instance(context, job, &job_op);
if (s.rc != CMPI_RC_OK)
goto out;
-
+
CMAddArg(argsout, "Job", (CMPIValue *)&job_op, CMPI_ref);
+
+ inst = CBGetInstance(_BROKER, job->context, job_op, NULL, &s);
+ if ((inst == NULL) || (s.rc != CMPI_RC_OK)) {
+ CU_DEBUG("Failed to get job instance for create ind", s.rc);
+ goto out;
+ }
+
+ ind = prepare_indication(_BROKER, inst, job->ref_ns, MIG_CREATED, &s);
+ rc = raise_indication(job->context, MIG_CREATED, job->ref_ns,
+ inst, ind);
+ if (!rc)
+ CU_DEBUG("Failed to raise indication");
thread = _BROKER->xft->newThread((void*)migration_thread, job, 0);
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