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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;
uint16_t offset = 0;
uint16_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 segment_off_t SIZE = 4<<10;
using Ref = TCachedExtentRef<TestBlock>;
std::vector<test_block_delta_t> delta = {};
TestBlock(ceph::bufferptr &&ptr)
: LogicalCachedExtent(std::move(ptr)) {}
TestBlock(const TestBlock &other)
: LogicalCachedExtent(other) {}
CachedExtentRef duplicate_for_write() 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, uint16_t offset, uint16_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());
}
test_extent_desc_t get_desc() {
return { get_length(), get_crc32c() };
}
void apply_delta(const ceph::bufferlist &bl) final;
};
using TestBlockRef = TCachedExtentRef<TestBlock>;
struct TestBlockPhysical : crimson::os::seastore::CachedExtent{
constexpr static segment_off_t SIZE = 4<<10;
using Ref = TCachedExtentRef<TestBlockPhysical>;
std::vector<test_block_delta_t> delta = {};
TestBlockPhysical(ceph::bufferptr &&ptr)
: CachedExtent(std::move(ptr)) {}
TestBlockPhysical(const TestBlock &other)
: CachedExtent(other) {}
CachedExtentRef duplicate_for_write() 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, uint16_t offset, uint16_t len) {
::memset(get_bptr().c_str() + offset, c, len);
}
void set_contents(char c) {
set_contents(c, 0, get_length());
}
ceph::bufferlist get_delta() final { return ceph::bufferlist(); }
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<uint16_t>
offset_distribution = std::uniform_int_distribution<uint16_t>(
0, TestBlock::SIZE - 1);
std::uniform_int_distribution<uint16_t> length_distribution(uint16_t offset) {
return std::uniform_int_distribution<uint16_t>(
0, TestBlock::SIZE - offset - 1);
}
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)
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