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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#pragma once
#include <random>
#include "crimson/os/seastore/transaction_manager.h"
namespace crimson::os::seastore {
struct test_extent_desc_t {
size_t len = 0;
unsigned checksum = 0;
bool operator==(const test_extent_desc_t &rhs) const {
return (len == rhs.len &&
checksum == rhs.checksum);
}
bool operator!=(const test_extent_desc_t &rhs) const {
return !(*this == rhs);
}
};
struct test_block_delta_t {
int8_t val = 0;
extent_len_t offset = 0;
extent_len_t len = 0;
DENC(test_block_delta_t, v, p) {
DENC_START(1, 1, p);
denc(v.val, p);
denc(v.offset, p);
denc(v.len, p);
DENC_FINISH(p);
}
};
inline std::ostream &operator<<(
std::ostream &lhs, const test_extent_desc_t &rhs) {
return lhs << "test_extent_desc_t(len=" << rhs.len
<< ", checksum=" << rhs.checksum << ")";
}
struct TestBlock : crimson::os::seastore::LogicalCachedExtent {
constexpr static extent_len_t SIZE = 4<<10;
using Ref = TCachedExtentRef<TestBlock>;
std::vector<test_block_delta_t> delta = {};
interval_set<extent_len_t> modified_region;
TestBlock(ceph::bufferptr &&ptr)
: LogicalCachedExtent(std::move(ptr)) {}
TestBlock(const TestBlock &other)
: LogicalCachedExtent(other), modified_region(other.modified_region) {}
TestBlock(extent_len_t length)
: LogicalCachedExtent(length) {}
CachedExtentRef duplicate_for_write(Transaction&) final {
return CachedExtentRef(new TestBlock(*this));
};
static constexpr extent_types_t TYPE = extent_types_t::TEST_BLOCK;
extent_types_t get_type() const final {
return TYPE;
}
ceph::bufferlist get_delta() final;
void set_contents(char c, extent_len_t offset, extent_len_t len) {
assert(offset + len <= get_length());
assert(len > 0);
::memset(get_bptr().c_str() + offset, c, len);
delta.push_back({c, offset, len});
modified_region.union_insert(offset, len);
}
void set_contents(char c) {
set_contents(c, 0, get_length());
}
test_extent_desc_t get_desc() {
return { get_length(), calc_crc32c() };
}
void apply_delta(const ceph::bufferlist &bl) final;
std::optional<modified_region_t> get_modified_region() final {
if (modified_region.empty()) {
return std::nullopt;
}
return modified_region_t{modified_region.range_start(),
modified_region.range_end() - modified_region.range_start()};
}
void clear_modified_region() final {
modified_region.clear();
}
void logical_on_delta_write() final {
delta.clear();
}
};
using TestBlockRef = TCachedExtentRef<TestBlock>;
struct TestBlockPhysical : crimson::os::seastore::CachedExtent{
constexpr static extent_len_t SIZE = 4<<10;
using Ref = TCachedExtentRef<TestBlockPhysical>;
std::vector<test_block_delta_t> delta = {};
void on_rewrite(Transaction&, CachedExtent&, extent_len_t) final {}
TestBlockPhysical(ceph::bufferptr &&ptr)
: CachedExtent(std::move(ptr)) {}
TestBlockPhysical(const TestBlockPhysical &other)
: CachedExtent(other) {}
CachedExtentRef duplicate_for_write(Transaction&) final {
return CachedExtentRef(new TestBlockPhysical(*this));
};
static constexpr extent_types_t TYPE = extent_types_t::TEST_BLOCK_PHYSICAL;
extent_types_t get_type() const final {
return TYPE;
}
void set_contents(char c, extent_len_t offset, extent_len_t len) {
::memset(get_bptr().c_str() + offset, c, len);
delta.push_back({c, offset, len});
}
void set_contents(char c) {
set_contents(c, 0, get_length());
}
ceph::bufferlist get_delta() final;
void apply_delta_and_adjust_crc(paddr_t, const ceph::bufferlist &bl) final;
};
using TestBlockPhysicalRef = TCachedExtentRef<TestBlockPhysical>;
struct test_block_mutator_t {
std::uniform_int_distribution<int8_t>
contents_distribution = std::uniform_int_distribution<int8_t>(
std::numeric_limits<int8_t>::min(),
std::numeric_limits<int8_t>::max());
std::uniform_int_distribution<extent_len_t>
offset_distribution = std::uniform_int_distribution<extent_len_t>(
0, TestBlock::SIZE - 1);
std::uniform_int_distribution<extent_len_t> length_distribution(extent_len_t offset) {
return std::uniform_int_distribution<extent_len_t>(
1, TestBlock::SIZE - offset);
}
template <typename generator_t>
void mutate(TestBlock &block, generator_t &gen) {
auto offset = offset_distribution(gen);
block.set_contents(
contents_distribution(gen),
offset,
length_distribution(offset)(gen));
}
};
}
WRITE_CLASS_DENC_BOUNDED(crimson::os::seastore::test_block_delta_t)
#if FMT_VERSION >= 90000
template <> struct fmt::formatter<crimson::os::seastore::test_extent_desc_t> : fmt::ostream_formatter {};
template <> struct fmt::formatter<crimson::os::seastore::TestBlock> : fmt::ostream_formatter {};
template <> struct fmt::formatter<crimson::os::seastore::TestBlockPhysical> : fmt::ostream_formatter {};
#endif
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