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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "gtest/gtest.h"
#include "common/ceph_argparse.h"
#include "common/ceph_context.h"
#include "common/ceph_mutex.h"
#include "common/common_init.h"
#include "common/lockdep.h"
#include "include/util.h"
#include "include/coredumpctl.h"
#include "log/Log.h"
class lockdep : public ::testing::Test
{
protected:
void SetUp() override {
#ifndef CEPH_DEBUG_MUTEX
GTEST_SKIP() << "WARNING: CEPH_DEBUG_MUTEX is not defined, lockdep will not work";
#endif
CephInitParameters params(CEPH_ENTITY_TYPE_CLIENT);
cct = common_preinit(params, CODE_ENVIRONMENT_UTILITY,
CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
cct->_conf->cluster = "ceph";
cct->_conf.set_val("lockdep", "true");
cct->_conf.apply_changes(nullptr);
ASSERT_TRUE(g_lockdep);
}
void TearDown() final
{
if (cct) {
cct->put();
cct = nullptr;
}
}
protected:
CephContext *cct = nullptr;
};
TEST_F(lockdep, abba)
{
ceph::mutex a(ceph::make_mutex("a")), b(ceph::make_mutex("b"));
a.lock();
ASSERT_TRUE(ceph_mutex_is_locked(a));
ASSERT_TRUE(ceph_mutex_is_locked_by_me(a));
b.lock();
ASSERT_TRUE(ceph_mutex_is_locked(b));
ASSERT_TRUE(ceph_mutex_is_locked_by_me(b));
a.unlock();
b.unlock();
b.lock();
PrCtl unset_dumpable;
EXPECT_DEATH(a.lock(), "");
b.unlock();
}
TEST_F(lockdep, recursive)
{
ceph::mutex a(ceph::make_mutex("a"));
a.lock();
PrCtl unset_dumpable;
EXPECT_DEATH(a.lock(), "");
a.unlock();
ceph::recursive_mutex b(ceph::make_recursive_mutex("b"));
b.lock();
ASSERT_TRUE(ceph_mutex_is_locked(b));
ASSERT_TRUE(ceph_mutex_is_locked_by_me(b));
b.lock();
b.unlock();
b.unlock();
}
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