On Mon, Apr 29, 2024 at 08:55:27AM -0700, Steve Sistare wrote:
> Create the cpr-exec-args migration parameter, defined as a list of
> strings. It will be used for cpr-exec migration mode in a subsequent
> patch.
>
> No functional change, except that cpr-exec-args is shown by the
> 'info migrate' command.
>
> Signed-off-by: Steve Sistare <steven.sist...@oracle.com>
> ---
> hmp-commands.hx | 2 +-
> migration/migration-hmp-cmds.c | 24 ++++++++++++++++++++++++
> migration/options.c | 13 +++++++++++++
> qapi/migration.json | 18 +++++++++++++++---
> 4 files changed, 53 insertions(+), 4 deletions(-)
>
> diff --git a/hmp-commands.hx b/hmp-commands.hx
> index 2e2a3bc..39954ae 100644
> --- a/hmp-commands.hx
> +++ b/hmp-commands.hx
> @@ -1012,7 +1012,7 @@ ERST
>
> {
> .name = "migrate_set_parameter",
> - .args_type = "parameter:s,value:s",
> + .args_type = "parameter:s,value:S",
> .params = "parameter value",
> .help = "Set the parameter for migration",
> .cmd = hmp_migrate_set_parameter,
> diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c
> index 7e96ae6..414c7e8 100644
> --- a/migration/migration-hmp-cmds.c
> +++ b/migration/migration-hmp-cmds.c
> @@ -255,6 +255,18 @@ void hmp_info_migrate_capabilities(Monitor *mon, const
> QDict *qdict)
> qapi_free_MigrationCapabilityStatusList(caps);
> }
>
> +static void monitor_print_cpr_exec_args(Monitor *mon, strList *args)
> +{
> + monitor_printf(mon, "%s:",
> + MigrationParameter_str(MIGRATION_PARAMETER_CPR_EXEC_ARGS));
> +
> + while (args) {
> + monitor_printf(mon, " %s", args->value);
> + args = args->next;
> + }
> + monitor_printf(mon, "\n");
> +}
> +
> void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict)
> {
> MigrationParameters *params;
> @@ -397,6 +409,8 @@ void hmp_info_migrate_parameters(Monitor *mon, const
> QDict *qdict)
> monitor_printf(mon, "%s: %s\n",
> MigrationParameter_str(MIGRATION_PARAMETER_MODE),
> qapi_enum_lookup(&MigMode_lookup, params->mode));
> + assert(params->has_cpr_exec_args);
> + monitor_print_cpr_exec_args(mon, params->cpr_exec_args);
> }
>
> qapi_free_MigrationParameters(params);
> @@ -690,6 +704,16 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict
> *qdict)
> p->has_mode = true;
> visit_type_MigMode(v, param, &p->mode, &err);
> break;
> + case MIGRATION_PARAMETER_CPR_EXEC_ARGS: {
> + g_autofree char **strv = g_strsplit(valuestr ?: "", " ", -1);
Splitting on whitespace means it'll break with any arguments containing
quoted whitespace. If we use g_shell_parse_argv then it should support
quoting in the normal shell mannre.
> + strList **tail = &p->cpr_exec_args;
> +
> + for (int i = 0; strv[i]; i++) {
> + QAPI_LIST_APPEND(tail, strv[i]);
> + }
> + p->has_cpr_exec_args = true;
> + break;
> + }
> default:
> assert(0);
> }
With regards,
Daniel
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