From: Maxim Levitsky <mlevi...@redhat.com>

The purpose of qtest_qmp_receive_success was mostly to process events
that arrived between the issueing of a command and the "return"
line from QMP.  This is now handled by the buffering of events
that libqtest performs automatically.

Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
Signed-off-by: Maxim Levitsky <mlevi...@redhat.com>
---
 tests/qtest/libqos/libqtest.h   | 17 -----------
 tests/qtest/libqtest.c          | 53 ++++-----------------------------
 tests/qtest/migration-helpers.c | 25 ++++++++++++----
 3 files changed, 25 insertions(+), 70 deletions(-)

diff --git a/tests/qtest/libqos/libqtest.h b/tests/qtest/libqos/libqtest.h
index b7a776068c..5c959f1853 100644
--- a/tests/qtest/libqos/libqtest.h
+++ b/tests/qtest/libqos/libqtest.h
@@ -240,23 +240,6 @@ QDict *qtest_qmp_eventwait_ref(QTestState *s, const char 
*event);
  */
 QDict *qtest_qmp_event_ref(QTestState *s, const char *event);
 
-/**
- * qtest_qmp_receive_success:
- * @s: #QTestState instance to operate on
- * @event_cb: Event callback
- * @opaque: Argument for @event_cb
- *
- * Poll QMP messages until a command success response is received.
- * If @event_cb, call it for each event received, passing @opaque,
- * the event's name and data.
- * Return the success response's "return" member.
- */
-QDict *qtest_qmp_receive_success(QTestState *s,
-                                 void (*event_cb)(void *opaque,
-                                                  const char *name,
-                                                  QDict *data),
-                                 void *opaque);
-
 /**
  * qtest_hmp:
  * @s: #QTestState instance to operate on.
diff --git a/tests/qtest/libqtest.c b/tests/qtest/libqtest.c
index d4c49a52ff..baac667b8d 100644
--- a/tests/qtest/libqtest.c
+++ b/tests/qtest/libqtest.c
@@ -1291,35 +1291,6 @@ void qtest_cb_for_every_machine(void (*cb)(const char 
*machine),
     qobject_unref(response);
 }
 
-QDict *qtest_qmp_receive_success(QTestState *s,
-                                 void (*event_cb)(void *opaque,
-                                                  const char *event,
-                                                  QDict *data),
-                                 void *opaque)
-{
-    QDict *response, *ret, *data;
-    const char *event;
-
-    for (;;) {
-        response = qtest_qmp_receive_dict(s);
-        g_assert(!qdict_haskey(response, "error"));
-        ret = qdict_get_qdict(response, "return");
-        if (ret) {
-            break;
-        }
-        event = qdict_get_str(response, "event");
-        data = qdict_get_qdict(response, "data");
-        if (event_cb) {
-            event_cb(opaque, event, data);
-        }
-        qobject_unref(response);
-    }
-
-    qobject_ref(ret);
-    qobject_unref(response);
-    return ret;
-}
-
 /*
  * Generic hot-plugging test via the device_add QMP commands.
  */
@@ -1355,13 +1326,6 @@ void qtest_qmp_device_add(QTestState *qts, const char 
*driver, const char *id,
     qobject_unref(args);
 }
 
-static void device_deleted_cb(void *opaque, const char *name, QDict *data)
-{
-    bool *got_event = opaque;
-
-    g_assert_cmpstr(name, ==, "DEVICE_DELETED");
-    *got_event = true;
-}
 
 /*
  * Generic hot-unplugging test via the device_del QMP command.
@@ -1378,24 +1342,17 @@ static void device_deleted_cb(void *opaque, const char 
*name, QDict *data)
  * and this one:
  *
  * {"return": {}}
- *
- * But the order of arrival may vary - so we've got to detect both.
  */
 void qtest_qmp_device_del(QTestState *qts, const char *id)
 {
-    bool got_event = false;
     QDict *rsp;
 
-    qtest_qmp_send(qts, "{'execute': 'device_del', 'arguments': {'id': %s}}",
-                   id);
-    rsp = qtest_qmp_receive_success(qts, device_deleted_cb, &got_event);
+    rsp = qtest_qmp(qts, "{'execute': 'device_del', 'arguments': {'id': %s}}",
+                    id);
+
+    g_assert(qdict_haskey(rsp, "return"));
     qobject_unref(rsp);
-    if (!got_event) {
-        rsp = qtest_qmp_receive_dict(qts);
-        g_assert_cmpstr(qdict_get_try_str(rsp, "event"),
-                        ==, "DEVICE_DELETED");
-        qobject_unref(rsp);
-    }
+    qtest_qmp_eventwait(qts, "DEVICE_DELETED");
 }
 
 bool qmp_rsp_is_err(QDict *rsp)
diff --git a/tests/qtest/migration-helpers.c b/tests/qtest/migration-helpers.c
index 516093b39a..b799dbafb7 100644
--- a/tests/qtest/migration-helpers.c
+++ b/tests/qtest/migration-helpers.c
@@ -17,10 +17,12 @@
 
 bool got_stop;
 
-static void stop_cb(void *opaque, const char *name, QDict *data)
+static void check_stop_event(QTestState *who)
 {
-    if (!strcmp(name, "STOP")) {
+    QDict *event = qtest_qmp_event_ref(who, "STOP");
+    if (event) {
         got_stop = true;
+        qobject_unref(event);
     }
 }
 
@@ -30,12 +32,19 @@ static void stop_cb(void *opaque, const char *name, QDict 
*data)
 QDict *wait_command_fd(QTestState *who, int fd, const char *command, ...)
 {
     va_list ap;
+    QDict *resp;
 
     va_start(ap, command);
     qtest_qmp_vsend_fds(who, &fd, 1, command, ap);
     va_end(ap);
 
-    return qtest_qmp_receive_success(who, stop_cb, NULL);
+    resp = qtest_qmp_receive(who);
+    check_stop_event(who);
+
+    g_assert(!qdict_haskey(resp, "error"));
+    g_assert(qdict_haskey(resp, "return"));
+
+    return qdict_get_qdict(resp, "return");
 }
 
 /*
@@ -44,12 +53,18 @@ QDict *wait_command_fd(QTestState *who, int fd, const char 
*command, ...)
 QDict *wait_command(QTestState *who, const char *command, ...)
 {
     va_list ap;
+    QDict *resp;
 
     va_start(ap, command);
-    qtest_qmp_vsend(who, command, ap);
+    resp = qtest_vqmp(who, command, ap);
     va_end(ap);
 
-    return qtest_qmp_receive_success(who, stop_cb, NULL);
+    check_stop_event(who);
+
+    g_assert(!qdict_haskey(resp, "error"));
+    g_assert(qdict_haskey(resp, "return"));
+
+    return qdict_get_qdict(resp, "return");
 }
 
 /*
-- 
2.26.2



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