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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "test/librbd/test_fixture.h"
#include "test/librbd/test_support.h"
#include "librbd/BlockGuard.h"
namespace librbd {
class TestIOBlockGuard : public TestFixture {
public:
static uint32_t s_index;
struct Operation {
uint32_t index;
Operation() : index(++s_index) {
}
Operation(Operation &&rhs) : index(rhs.index) {
}
Operation(const Operation &) = delete;
Operation& operator=(Operation &&rhs) {
index = rhs.index;
return *this;
}
bool operator==(const Operation &rhs) const {
return index == rhs.index;
}
};
typedef std::list<Operation> Operations;
typedef BlockGuard<Operation> OpBlockGuard;
void SetUp() override {
TestFixture::SetUp();
m_cct = reinterpret_cast<CephContext*>(m_ioctx.cct());
}
CephContext *m_cct;
};
TEST_F(TestIOBlockGuard, NonDetainedOps) {
OpBlockGuard op_block_guard(m_cct);
Operation op1;
BlockGuardCell *cell1;
ASSERT_EQ(0, op_block_guard.detain({1, 3}, &op1, &cell1));
Operation op2;
BlockGuardCell *cell2;
ASSERT_EQ(0, op_block_guard.detain({0, 1}, &op2, &cell2));
Operation op3;
BlockGuardCell *cell3;
ASSERT_EQ(0, op_block_guard.detain({3, 6}, &op3, &cell3));
Operations released_ops;
op_block_guard.release(cell1, &released_ops);
ASSERT_TRUE(released_ops.empty());
op_block_guard.release(cell2, &released_ops);
ASSERT_TRUE(released_ops.empty());
op_block_guard.release(cell3, &released_ops);
ASSERT_TRUE(released_ops.empty());
}
TEST_F(TestIOBlockGuard, DetainedOps) {
OpBlockGuard op_block_guard(m_cct);
Operation op1;
BlockGuardCell *cell1;
ASSERT_EQ(0, op_block_guard.detain({1, 3}, &op1, &cell1));
Operation op2;
BlockGuardCell *cell2;
ASSERT_EQ(1, op_block_guard.detain({2, 6}, &op2, &cell2));
ASSERT_EQ(nullptr, cell2);
Operation op3;
BlockGuardCell *cell3;
ASSERT_EQ(2, op_block_guard.detain({0, 2}, &op3, &cell3));
ASSERT_EQ(nullptr, cell3);
Operations expected_ops;
expected_ops.push_back(std::move(op2));
expected_ops.push_back(std::move(op3));
Operations released_ops;
op_block_guard.release(cell1, &released_ops);
ASSERT_EQ(expected_ops, released_ops);
}
uint32_t TestIOBlockGuard::s_index = 0;
} // namespace librbd
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