From 24b8c39b5c34b05f1ac870c421e2e61574abbdf9 Mon Sep 17 00:00:00 2001 From: zhanghailiang Date: Fri, 13 Mar 2015 16:08:40 +0800 Subject: [PATCH] migration: Convert 'status' of MigrationInfo to use an enum type The original 'status' is an open-coded 'str' type, convert it to use an enum type. This conversion is backwards compatible, better documented and more convenient for future extensibility. In addition, Fix a typo for qapi-schema.json (just remove the typo) : s/'completed'. 'comppleted' (since 1.2)/'completed' (since 1.2) Signed-off-by: zhanghailiang Reviewed-by: Eric Blake Signed-off-by: Juan Quintela --- hmp.c | 7 ++++--- migration/migration.c | 20 +++++--------------- qapi-schema.json | 34 +++++++++++++++++++++++++++++----- 3 files changed, 38 insertions(+), 23 deletions(-) diff --git a/hmp.c b/hmp.c index 8afce2d6d9..7d5c81ed07 100644 --- a/hmp.c +++ b/hmp.c @@ -162,7 +162,8 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict) } if (info->has_status) { - monitor_printf(mon, "Migration status: %s\n", info->status); + monitor_printf(mon, "Migration status: %s\n", + MigrationStatus_lookup[info->status]); monitor_printf(mon, "total time: %" PRIu64 " milliseconds\n", info->total_time); if (info->has_expected_downtime) { @@ -1354,8 +1355,8 @@ static void hmp_migrate_status_cb(void *opaque) MigrationInfo *info; info = qmp_query_migrate(NULL); - if (!info->has_status || strcmp(info->status, "active") == 0 || - strcmp(info->status, "setup") == 0) { + if (!info->has_status || info->status == MIGRATION_STATUS_ACTIVE || + info->status == MIGRATION_STATUS_SETUP) { if (info->has_disk) { int progress; diff --git a/migration/migration.c b/migration/migration.c index b0860fa5c1..d7a1e7d2a3 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -26,16 +26,6 @@ #include "qmp-commands.h" #include "trace.h" -enum { - MIGRATION_STATUS_FAILED = -1, - MIGRATION_STATUS_NONE, - MIGRATION_STATUS_SETUP, - MIGRATION_STATUS_CANCELLING, - MIGRATION_STATUS_CANCELLED, - MIGRATION_STATUS_ACTIVE, - MIGRATION_STATUS_COMPLETED, -}; - #define MAX_THROTTLE (32 << 20) /* Migration speed throttling */ /* Amount of time to allocate to each "chunk" of bandwidth-throttled @@ -205,13 +195,13 @@ MigrationInfo *qmp_query_migrate(Error **errp) break; case MIGRATION_STATUS_SETUP: info->has_status = true; - info->status = g_strdup("setup"); + info->status = MIGRATION_STATUS_SETUP; info->has_total_time = false; break; case MIGRATION_STATUS_ACTIVE: case MIGRATION_STATUS_CANCELLING: info->has_status = true; - info->status = g_strdup("active"); + info->status = MIGRATION_STATUS_ACTIVE; info->has_total_time = true; info->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) - s->total_time; @@ -247,7 +237,7 @@ MigrationInfo *qmp_query_migrate(Error **errp) get_xbzrle_cache_stats(info); info->has_status = true; - info->status = g_strdup("completed"); + info->status = MIGRATION_STATUS_COMPLETED; info->has_total_time = true; info->total_time = s->total_time; info->has_downtime = true; @@ -269,11 +259,11 @@ MigrationInfo *qmp_query_migrate(Error **errp) break; case MIGRATION_STATUS_FAILED: info->has_status = true; - info->status = g_strdup("failed"); + info->status = MIGRATION_STATUS_FAILED; break; case MIGRATION_STATUS_CANCELLED: info->has_status = true; - info->status = g_strdup("cancelled"); + info->status = MIGRATION_STATUS_CANCELLED; break; } diff --git a/qapi-schema.json b/qapi-schema.json index d1f65a1452..ac9594d66d 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -410,19 +410,43 @@ 'cache-miss': 'int', 'cache-miss-rate': 'number', 'overflow': 'int' } } +# @MigrationStatus: +# +# An enumeration of migration status. +# +# @none: no migration has ever happened. +# +# @setup: migration process has been initiated. +# +# @cancelling: in the process of cancelling migration. +# +# @cancelled: cancelling migration is finished. +# +# @active: in the process of doing migration. +# +# @completed: migration is finished. +# +# @failed: some error occurred during migration process. +# +# Since: 2.3 +# +## +{ 'enum': 'MigrationStatus', + 'data': [ 'none', 'setup', 'cancelling', 'cancelled', + 'active', 'completed', 'failed' ] } + ## # @MigrationInfo # # Information about current migration process. # -# @status: #optional string describing the current migration status. -# As of 0.14.0 this can be 'setup', 'active', 'completed', 'failed' or -# 'cancelled'. If this field is not returned, no migration process +# @status: #optional @MigrationStatus describing the current migration status. +# If this field is not returned, no migration process # has been initiated # # @ram: #optional @MigrationStats containing detailed migration # status, only returned if status is 'active' or -# 'completed'. 'comppleted' (since 1.2) +# 'completed'(since 1.2) # # @disk: #optional @MigrationStats containing detailed disk migration # status, only returned if status is 'active' and it is a block @@ -453,7 +477,7 @@ # Since: 0.14.0 ## { 'type': 'MigrationInfo', - 'data': {'*status': 'str', '*ram': 'MigrationStats', + 'data': {'*status': 'MigrationStatus', '*ram': 'MigrationStats', '*disk': 'MigrationStats', '*xbzrle-cache': 'XBZRLECacheStats', '*total-time': 'int',