Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2020-02-15-v2' into staging

Monitor patches for 2020-02-15

# gpg: Signature made Mon 17 Feb 2020 13:26:20 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-monitor-2020-02-15-v2:
  qemu-doc: Clarify extent of build platform support
  monitor: Move qmp_query_qmp_schema to qmp-cmds-control.c
  monitor: Collect "control" command handlers in qmp-cmds.control.c
  qapi: Split control.json off misc.json
  monitor: Move monitor option parsing to monitor/monitor.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 169 insertions, 0 deletions

diff --git a/monitor/qmp-cmds-control.c b/monitor/qmp-cmds-control.c
new file mode 100644
index 0000000000..5cd9bb817c
--- /dev/null
+++ b/monitor/qmp-cmds-control.c
@@ -0,0 +1,169 @@
+/*
+ * QMP commands related to the monitor (common to sysemu and tools)
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+
+#include "monitor-internal.h"
+#include "qemu-version.h"
+#include "qapi/error.h"
+#include "qapi/qapi-commands-control.h"
+#include "qapi/qapi-emit-events.h"
+#include "qapi/qapi-introspect.h"
+
+/*
+ * Accept QMP capabilities in @list for @mon.
+ * On success, set mon->qmp.capab[], and return true.
+ * On error, set @errp, and return false.
+ */
+static bool qmp_caps_accept(MonitorQMP *mon, QMPCapabilityList *list,
+                            Error **errp)
+{
+    GString *unavailable = NULL;
+    bool capab[QMP_CAPABILITY__MAX];
+
+    memset(capab, 0, sizeof(capab));
+
+    for (; list; list = list->next) {
+        if (!mon->capab_offered[list->value]) {
+            if (!unavailable) {
+                unavailable = g_string_new(QMPCapability_str(list->value));
+            } else {
+                g_string_append_printf(unavailable, ", %s",
+                                      QMPCapability_str(list->value));
+            }
+        }
+        capab[list->value] = true;
+    }
+
+    if (unavailable) {
+        error_setg(errp, "Capability %s not available", unavailable->str);
+        g_string_free(unavailable, true);
+        return false;
+    }
+
+    memcpy(mon->capab, capab, sizeof(capab));
+    return true;
+}
+
+void qmp_qmp_capabilities(bool has_enable, QMPCapabilityList *enable,
+                          Error **errp)
+{
+    MonitorQMP *mon;
+
+    assert(monitor_is_qmp(cur_mon));
+    mon = container_of(cur_mon, MonitorQMP, common);
+
+    if (mon->commands == &qmp_commands) {
+        error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
+                  "Capabilities negotiation is already complete, command "
+                  "ignored");
+        return;
+    }
+
+    if (!qmp_caps_accept(mon, enable, errp)) {
+        return;
+    }
+
+    mon->commands = &qmp_commands;
+}
+
+VersionInfo *qmp_query_version(Error **errp)
+{
+    VersionInfo *info = g_new0(VersionInfo, 1);
+
+    info->qemu = g_new0(VersionTriple, 1);
+    info->qemu->major = QEMU_VERSION_MAJOR;
+    info->qemu->minor = QEMU_VERSION_MINOR;
+    info->qemu->micro = QEMU_VERSION_MICRO;
+    info->package = g_strdup(QEMU_PKGVERSION);
+
+    return info;
+}
+
+static void query_commands_cb(QmpCommand *cmd, void *opaque)
+{
+    CommandInfoList *info, **list = opaque;
+
+    if (!cmd->enabled) {
+        return;
+    }
+
+    info = g_malloc0(sizeof(*info));
+    info->value = g_malloc0(sizeof(*info->value));
+    info->value->name = g_strdup(cmd->name);
+    info->next = *list;
+    *list = info;
+}
+
+CommandInfoList *qmp_query_commands(Error **errp)
+{
+    CommandInfoList *list = NULL;
+    MonitorQMP *mon;
+
+    assert(monitor_is_qmp(cur_mon));
+    mon = container_of(cur_mon, MonitorQMP, common);
+
+    qmp_for_each_command(mon->commands, query_commands_cb, &list);
+
+    return list;
+}
+
+EventInfoList *qmp_query_events(Error **errp)
+{
+    /*
+     * TODO This deprecated command is the only user of
+     * QAPIEvent_str() and QAPIEvent_lookup[].  When the command goes,
+     * they should go, too.
+     */
+    EventInfoList *info, *ev_list = NULL;
+    QAPIEvent e;
+
+    for (e = 0 ; e < QAPI_EVENT__MAX ; e++) {
+        const char *event_name = QAPIEvent_str(e);
+        assert(event_name != NULL);
+        info = g_malloc0(sizeof(*info));
+        info->value = g_malloc0(sizeof(*info->value));
+        info->value->name = g_strdup(event_name);
+
+        info->next = ev_list;
+        ev_list = info;
+    }
+
+    return ev_list;
+}
+
+/*
+ * Minor hack: generated marshalling suppressed for this command
+ * ('gen': false in the schema) so we can parse the JSON string
+ * directly into QObject instead of first parsing it with
+ * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
+ * to QObject with generated output marshallers, every time.  Instead,
+ * we do it in test-qobject-input-visitor.c, just to make sure
+ * qapi-gen.py's output actually conforms to the schema.
+ */
+void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
+                                 Error **errp)
+{
+    *ret_data = qobject_from_qlit(&qmp_schema_qlit);
+}