[Libvirt-cim] [PATCH 4 of 4] Add offline migration support

# HG changeset patch # User Kaitlin Rupert <karupert(a)us.ibm.com&gt; # Date 1204070582 28800 # Node ID 4310ed87a132963947ad866eccca7d9697ef8fcf # Parent 09153317203d6a60ede32daf5f2ce5765b6d9953 Add offline migration support. Signed-off-by: Kaitlin Rupert <karupert(a)us.ibm.com&gt; diff -r 09153317203d -r 4310ed87a132 src/Virt_VSMigrationService.c --- a/src/Virt_VSMigrationService.c Mon Feb 25 16:36:25 2008 -0800 +++ b/src/Virt_VSMigrationService.c Tue Feb 26 16:03:02 2008 -0800 @@ -410,6 +410,69 @@ static CMPIStatus handle_migrate(virConn return s; } +static CMPIStatus prepare_offline_migrate(virDomainPtr dom, + char **xml) +{ + CMPIStatus s = {CMPI_RC_OK, NULL}; + virDomainInfo info; + int ret; + + ret = virDomainGetInfo(dom, &info); + if (ret != 0) { + cu_statusf(_BROKER, &s, + CMPI_RC_ERR_FAILED, + "Unabled to get info for domain."); + goto out; + } + + if ((const int)info.state != VIR_DOMAIN_SHUTOFF) { + cu_statusf(_BROKER, &s, + CMPI_RC_ERR_INVALID_PARAMETER, + "Domain must be shutoff for offline migration."); + goto out; + } + + *xml = virDomainGetXMLDesc(dom, 0); + if (*xml == NULL) { + cu_statusf(_BROKER, &s, + CMPI_RC_ERR_FAILED, + "Unable to retrieve domain XML."); + goto out; + } + + out: + return s; +} + +static CMPIStatus handle_offline_migrate(virConnectPtr dconn, + virDomainPtr dom, + char *uri, + char *xml, + struct migration_job *job) +{ + CMPIStatus s = {CMPI_RC_OK, NULL}; + virDomainPtr new_dom; + + if (domain_exists(dconn, job->domain)) { + CU_DEBUG("This domain already exists on the target system."); + cu_statusf(_BROKER, &s, + CMPI_RC_ERR_FAILED, + "This domain already exists on the target system"); + goto out; + } + + new_dom = virDomainDefineXML(dconn, xml); + if (new_dom == NULL) { + CU_DEBUG("Failed to define domain from XML"); + cu_statusf(_BROKER, &s, + CMPI_RC_ERR_FAILED, + "Failed to create domain"); + } + + out: + return s; +} + static CMPIStatus migrate_vs(struct migration_job *job) { CMPIStatus s; @@ -417,6 +480,7 @@ static CMPIStatus migrate_vs(struct migr virConnectPtr dconn = NULL; virDomainPtr dom = NULL; char *uri = NULL; + char *xml = NULL; uri = dest_uri(job->ref_cn, job->host); if (uri == NULL) { @@ -439,6 +503,12 @@ static CMPIStatus migrate_vs(struct migr goto out; } + if (job->type == CIM_MIGRATE_OTHER) { + s = prepare_offline_migrate(dom, &xml); + if (s.rc != CMPI_RC_OK) + goto out; + } + dconn = virConnectOpen(uri); if (dconn == NULL) { CU_DEBUG("Failed to connect to remote host (%s)", uri); @@ -450,8 +520,8 @@ static CMPIStatus migrate_vs(struct migr switch(job->type) { case CIM_MIGRATE_OTHER: - /* FIXME - Handle offline migration here */ CU_DEBUG("Preparing for offline migration"); + s = handle_offline_migrate(dconn, dom, uri, xml, job); break; case CIM_MIGRATE_LIVE: CU_DEBUG("Preparing for live migration"); @@ -480,6 +550,7 @@ static CMPIStatus migrate_vs(struct migr out: free(uri); + free(xml); virDomainFree(dom); virConnectClose(conn); virConnectClose(dconn);