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Monitor patches for 2018-07-03

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Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2018-07-03-v2' into staging

Monitor patches for 2018-07-03

# gpg: Signature made Tue 03 Jul 2018 22:20:13 BST
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-monitor-2018-07-03-v2: (32 commits)
  qapi: Polish command flags documentation in qapi-code-gen.txt
  monitor: Improve some comments
  qmp: Clean up capability negotiation after commit 02130314d8
  qobject: Let qobject_from_jsonf() fail instead of abort
  qmp: Switch timestamp_put() to qdict_from_jsonf_nofail()
  qmp: Add some comments around null responses
  qmp: Simplify monitor_qmp_respond()
  qmp: Replace get_qmp_greeting() by qmp_greeting()
  qmp: Replace monitor_json_emitter{,raw}() by qmp_{queue,send}_response()
  qmp: Use QDict * instead of QObject * for response objects
  qmp: De-duplicate error response building
  qobject: New qdict_from_jsonf_nofail()
  monitor: Peel off @mon_global wrapper
  monitor: Rename use_io_thr to use_io_thread
  qmp: Don't let JSON errors jump the queue
  qmp: Don't let malformed in-band commands jump the queue
  tests/qmp-test: Demonstrate QMP errors jumping the queue
  qmp: Simplify code around monitor_qmp_dispatch_one()
  qmp: Always free QMPRequest with qmp_request_free()
  qmp: Revert change to handle_qmp_command tracepoint
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-07-05 11:25:14 +01:00
commit 4fd1cbaf14
16 changed files with 511 additions and 528 deletions
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2
tests/qapi-schema/qapi-schema-test.json
View file

@ -144,7 +144,7 @@
{ 'command': 'boxed-struct', 'boxed': true, 'data': 'UserDefZero' }
{ 'command': 'boxed-union', 'data': 'UserDefNativeListUnion', 'boxed': true }
# Smoke test on Out-Of-Band and allow-preconfig-test
# Smoke test on out-of-band and allow-preconfig-test
{ 'command': 'test-flags-command', 'allow-oob': true, 'allow-preconfig': true }
# For testing integer range flattening in opts-visitor. The following schema

105
tests/qmp-test.c
View file

@ -135,16 +135,65 @@ static void test_qmp_protocol(void)
qtest_quit(qts);
}
/* Tests for Out-Of-Band support. */
/* Out-of-band tests */
char tmpdir[] = "/tmp/qmp-test-XXXXXX";
char *fifo_name;
static void setup_blocking_cmd(void)
{
if (!mkdtemp(tmpdir)) {
g_error("mkdtemp: %s", strerror(errno));
}
fifo_name = g_strdup_printf("%s/fifo", tmpdir);
if (mkfifo(fifo_name, 0666)) {
g_error("mkfifo: %s", strerror(errno));
}
}
static void cleanup_blocking_cmd(void)
{
unlink(fifo_name);
rmdir(tmpdir);
}
static void send_cmd_that_blocks(QTestState *s, const char *id)
{
qtest_async_qmp(s, "{ 'execute': 'blockdev-add', 'id': %s,"
" 'arguments': {"
" 'driver': 'blkdebug', 'node-name': %s,"
" 'config': %s,"
" 'image': { 'driver': 'null-co' } } }",
id, id, fifo_name);
}
static void unblock_blocked_cmd(void)
{
int fd = open(fifo_name, O_WRONLY);
g_assert(fd >= 0);
close(fd);
}
static void send_oob_cmd_that_fails(QTestState *s, const char *id)
{
qtest_async_qmp(s, "{ 'exec-oob': 'migrate-pause', 'id': %s }", id);
}
static void recv_cmd_id(QTestState *s, const char *id)
{
QDict *resp = qtest_qmp_receive(s);
g_assert_cmpstr(qdict_get_try_str(resp, "id"), ==, id);
qobject_unref(resp);
}
static void test_qmp_oob(void)
{
QTestState *qts;
QDict *resp, *q;
int acks = 0;
const QListEntry *entry;
QList *capabilities;
QString *qstr;
const char *cmd_id;
qts = qtest_init_without_qmp_handshake(true, common_args);
@ -179,43 +228,33 @@ static void test_qmp_oob(void)
* Try any command that does not support OOB but with OOB flag. We
* should get failure.
*/
resp = qtest_qmp(qts,
"{ 'execute': 'query-cpus',"
" 'control': { 'run-oob': true } }");
resp = qtest_qmp(qts, "{ 'exec-oob': 'query-cpus' }");
g_assert(qdict_haskey(resp, "error"));
qobject_unref(resp);
/*
* First send the "x-oob-test" command with lock=true and
* oob=false, it should hang the dispatcher and main thread;
* later, we send another lock=false with oob=true to continue
* that thread processing. Finally we should receive replies from
* both commands.
*/
qtest_async_qmp(qts,
"{ 'execute': 'x-oob-test',"
" 'arguments': { 'lock': true }, "
" 'id': 'lock-cmd'}");
qtest_async_qmp(qts,
"{ 'execute': 'x-oob-test', "
" 'arguments': { 'lock': false }, "
" 'control': { 'run-oob': true }, "
" 'id': 'unlock-cmd' }");
/* OOB command overtakes slow in-band command */
setup_blocking_cmd();
send_cmd_that_blocks(qts, "ib-blocks-1");
qtest_async_qmp(qts, "{ 'execute': 'query-name', 'id': 'ib-quick-1' }");
send_oob_cmd_that_fails(qts, "oob-1");
recv_cmd_id(qts, "oob-1");
unblock_blocked_cmd();
recv_cmd_id(qts, "ib-blocks-1");
recv_cmd_id(qts, "ib-quick-1");
/* Ignore all events. Wait for 2 acks */
while (acks < 2) {
resp = qtest_qmp_receive(qts);
cmd_id = qdict_get_str(resp, "id");
if (!g_strcmp0(cmd_id, "lock-cmd") ||
!g_strcmp0(cmd_id, "unlock-cmd")) {
acks++;
}
qobject_unref(resp);
}
/* Even malformed in-band command fails in-band */
send_cmd_that_blocks(qts, "blocks-2");
qtest_async_qmp(qts, "{ 'id': 'err-2' }");
unblock_blocked_cmd();
recv_cmd_id(qts, "blocks-2");
recv_cmd_id(qts, "err-2");
cleanup_blocking_cmd();
qtest_quit(qts);
}
/* Query smoke tests */
static int query_error_class(const char *cmd)
{
static struct {
@ -392,6 +431,8 @@ static void add_query_tests(QmpSchema *schema)
}
}
/* Preconfig tests */
static void test_qmp_preconfig(void)
{
QDict *rsp, *ret;

34
tests/test-qga.c
View file

@ -227,6 +227,38 @@ static void test_qga_ping(gconstpointer fix)
qobject_unref(ret);
}
static void test_qga_invalid_id(gconstpointer fix)
{
const TestFixture *fixture = fix;
QDict *ret, *error;
const char *class;
ret = qmp_fd(fixture->fd, "{'execute': 'guest-ping', 'id': 1}");
g_assert_nonnull(ret);
error = qdict_get_qdict(ret, "error");
class = qdict_get_try_str(error, "class");
g_assert_cmpstr(class, ==, "GenericError");
qobject_unref(ret);
}
static void test_qga_invalid_oob(gconstpointer fix)
{
const TestFixture *fixture = fix;
QDict *ret, *error;
const char *class;
ret = qmp_fd(fixture->fd, "{'exec-oob': 'guest-ping'}");
g_assert_nonnull(ret);
error = qdict_get_qdict(ret, "error");
class = qdict_get_try_str(error, "class");
g_assert_cmpstr(class, ==, "GenericError");
qobject_unref(ret);
}
static void test_qga_invalid_args(gconstpointer fix)
{
const TestFixture *fixture = fix;
@ -982,6 +1014,8 @@ int main(int argc, char **argv)
g_test_add_data_func("/qga/file-ops", &fix, test_qga_file_ops);
g_test_add_data_func("/qga/file-write-read", &fix, test_qga_file_write_read);
g_test_add_data_func("/qga/get-time", &fix, test_qga_get_time);
g_test_add_data_func("/qga/invalid-id", &fix, test_qga_invalid_id);
g_test_add_data_func("/qga/invalid-oob", &fix, test_qga_invalid_oob);
g_test_add_data_func("/qga/invalid-cmd", &fix, test_qga_invalid_cmd);
g_test_add_data_func("/qga/invalid-args", &fix, test_qga_invalid_args);
g_test_add_data_func("/qga/fsfreeze-status", &fix,

23
tests/test-qmp-cmds.c
View file

@ -110,13 +110,13 @@ __org_qemu_x_Union1 *qmp___org_qemu_x_command(__org_qemu_x_EnumList *a,
static void test_dispatch_cmd(void)
{
QDict *req = qdict_new();
QObject *resp;
QDict *resp;
qdict_put_str(req, "execute", "user_def_cmd");
resp = qmp_dispatch(&qmp_commands, QOBJECT(req));
resp = qmp_dispatch(&qmp_commands, QOBJECT(req), false);
assert(resp != NULL);
assert(!qdict_haskey(qobject_to(QDict, resp), "error"));
assert(!qdict_haskey(resp, "error"));
qobject_unref(resp);
qobject_unref(req);
@ -127,13 +127,13 @@ static void test_dispatch_cmd_failure(void)
{
QDict *req = qdict_new();
QDict *args = qdict_new();
QObject *resp;
QDict *resp;
qdict_put_str(req, "execute", "user_def_cmd2");
resp = qmp_dispatch(&qmp_commands, QOBJECT(req));
resp = qmp_dispatch(&qmp_commands, QOBJECT(req), false);
assert(resp != NULL);
assert(qdict_haskey(qobject_to(QDict, resp), "error"));
assert(qdict_haskey(resp, "error"));
qobject_unref(resp);
qobject_unref(req);
@ -145,9 +145,9 @@ static void test_dispatch_cmd_failure(void)
qdict_put_str(req, "execute", "user_def_cmd");
resp = qmp_dispatch(&qmp_commands, QOBJECT(req));
resp = qmp_dispatch(&qmp_commands, QOBJECT(req), false);
assert(resp != NULL);
assert(qdict_haskey(qobject_to(QDict, resp), "error"));
assert(qdict_haskey(resp, "error"));
qobject_unref(resp);
qobject_unref(req);
@ -155,18 +155,15 @@ static void test_dispatch_cmd_failure(void)
static QObject *test_qmp_dispatch(QDict *req)
{
QObject *resp_obj;
QDict *resp;
QObject *ret;
resp_obj = qmp_dispatch(&qmp_commands, QOBJECT(req));
assert(resp_obj);
resp = qobject_to(QDict, resp_obj);
resp = qmp_dispatch(&qmp_commands, QOBJECT(req), false);
assert(resp && !qdict_haskey(resp, "error"));
ret = qdict_get(resp, "return");
assert(ret);
qobject_ref(ret);
qobject_unref(resp_obj);
qobject_unref(resp);
return ret;
}