From 485febc6d1382a82e4e1640729fffbf0c1392a44 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Fri, 13 Mar 2015 17:25:50 +0100 Subject: qmp: Wean off qerror_report() The traditional QMP command handler interface int qmp_FOO(Monitor *mon, const QDict *params, QObject **ret_data); doesn't provide for returning an Error object. Instead, the handler is expected to stash it in the monitor with qerror_report(). When we rebased QMP on top of QAPI, we didn't change this interface. Instead, commit 776574d introduced "middle mode" as a temporary aid for converting existing QMP commands to QAPI one by one. More than three years later, we're still using it. Middle mode has two effects: * Instead of the native input marshallers static void qmp_marshal_input_FOO(QDict *, QObject **, Error **) it generates input marshallers conforming to the traditional QMP command handler interface. * It suppresses generation of code to register them with qmp_register_command() This permits giving them internal linkage. As long as we need qmp-commands.hx, we can't use the registry behind qmp_register_command(), so the latter has to stay for now. The former has to go to get rid of qerror_report(). Changing all QMP commands to fit the QAPI mold in one go was impractical back when we started, but by now there are just a few stragglers left: do_qmp_capabilities(), qmp_qom_set(), qmp_qom_get(), qmp_object_add(), qmp_netdev_add(), do_device_add(). Switch middle mode to generate native input marshallers, and adapt the stragglers. Simplifies both the monitor code and the stragglers. Rename do_qmp_capabilities() to qmp_capabilities(), and do_device_add() to qmp_device_add, because that's how QMP command handlers are named today. Signed-off-by: Markus Armbruster Reviewed-by: Stefan Hajnoczi Reviewed-by: Eric Blake Reviewed-by: Luiz Capitulino --- scripts/qapi-commands.py | 41 ++++++----------------------------------- 1 file changed, 6 insertions(+), 35 deletions(-) (limited to 'scripts/qapi-commands.py') diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py index 1c1d3aa..a451a51 100644 --- a/scripts/qapi-commands.py +++ b/scripts/qapi-commands.py @@ -195,12 +195,10 @@ out: return ret def gen_marshal_input_decl(name, args, ret_type, middle_mode): - if middle_mode: - return 'int qmp_marshal_input_%s(Monitor *mon, const QDict *qdict, QObject **ret)' % c_name(name) - else: - return 'static void qmp_marshal_input_%s(QDict *args, QObject **ret, Error **errp)' % c_name(name) - - + ret = 'void qmp_marshal_input_%s(QDict *args, QObject **ret, Error **errp)' % c_name(name) + if not middle_mode: + ret = "static " + ret + return ret def gen_marshal_input(name, args, ret_type, middle_mode): hdr = gen_marshal_input_decl(name, args, ret_type, middle_mode) @@ -212,11 +210,6 @@ def gen_marshal_input(name, args, ret_type, middle_mode): ''', header=hdr) - if middle_mode: - ret += mcgen(''' - QDict *args = (QDict *)qdict; -''') - if ret_type: if is_c_ptr(ret_type): retval = " %s retval = NULL;" % c_type(ret_type) @@ -253,35 +246,13 @@ def gen_marshal_input(name, args, ret_type, middle_mode): out: ''') - if not middle_mode: - ret += mcgen(''' - error_propagate(errp, local_err); -''') ret += mcgen(''' + error_propagate(errp, local_err); %(visitor_input_block_cleanup)s +} ''', visitor_input_block_cleanup=gen_visitor_input_block(args, dealloc=True)) - - if middle_mode: - ret += mcgen(''' - - if (local_err) { - qerror_report_err(local_err); - error_free(local_err); - return -1; - } - return 0; -''') - else: - ret += mcgen(''' - return; -''') - - ret += mcgen(''' -} -''') - return ret def gen_registry(commands): -- cgit v1.1