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Introduce swap journaling crash recovery system with tests.

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- Added detailed journaling system (`SwapManager`) for crash recovery, including edit recording and replay.
- Integrated recovery prompts for handling swap files during file open flows.
- Implemented swap file cleanup, checkpointing, and compaction mechanisms.
- Added extensive unit tests for swap-related behaviors such as recovery prompts, file pruning, and corruption handling.
- Updated CMake to include new test files.
This commit is contained in:
Kyle Isom
2026-02-13 08:44:35 -08:00
parent 895e4ccb1e
commit 2a6ff2a862
19 changed files with 1697 additions and 144 deletions
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23
tests/test_swap_writer.cc
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@@ -71,8 +71,10 @@ TEST (SwapWriter_Header_Records_And_CRC)
(std::string("kte_ut_xdg_state_") + std::to_string((int) ::getpid()));
std::filesystem::remove_all(xdg_root);
const char *old_xdg = std::getenv("XDG_STATE_HOME");
setenv("XDG_STATE_HOME", xdg_root.string().c_str(), 1);
const char *old_xdg_p = std::getenv("XDG_STATE_HOME");
const std::string old_xdg = old_xdg_p ? std::string(old_xdg_p) : std::string();
const std::string xdg_root_s = xdg_root.string();
setenv("XDG_STATE_HOME", xdg_root_s.c_str(), 1);
const std::string path = (xdg_root / "work" / "kte_ut_swap_writer.txt").string();
std::filesystem::create_directories((xdg_root / "work"));
@@ -148,14 +150,15 @@ TEST (SwapWriter_Header_Records_And_CRC)
off = crc_off + 4;
}
ASSERT_EQ(types.size(), (std::size_t) 2);
ASSERT_EQ(types.size(), (std::size_t) 3);
ASSERT_EQ(types[0], (std::uint8_t) kte::SwapRecType::INS);
ASSERT_EQ(types[1], (std::uint8_t) kte::SwapRecType::DEL);
ASSERT_EQ(types[2], (std::uint8_t) kte::SwapRecType::CHKPT);
std::remove(path.c_str());
std::remove(swp.c_str());
if (old_xdg) {
setenv("XDG_STATE_HOME", old_xdg, 1);
if (!old_xdg.empty()) {
setenv("XDG_STATE_HOME", old_xdg.c_str(), 1);
} else {
unsetenv("XDG_STATE_HOME");
}
@@ -171,8 +174,10 @@ TEST (SwapWriter_NoStomp_SameBasename)
std::filesystem::remove_all(xdg_root);
std::filesystem::create_directories(xdg_root);
const char *old_xdg = std::getenv("XDG_STATE_HOME");
setenv("XDG_STATE_HOME", xdg_root.string().c_str(), 1);
const char *old_xdg_p = std::getenv("XDG_STATE_HOME");
const std::string old_xdg = old_xdg_p ? std::string(old_xdg_p) : std::string();
const std::string xdg_root_s = xdg_root.string();
setenv("XDG_STATE_HOME", xdg_root_s.c_str(), 1);
const std::filesystem::path d1 = xdg_root / "p1";
const std::filesystem::path d2 = xdg_root / "p2";
@@ -227,8 +232,8 @@ TEST (SwapWriter_NoStomp_SameBasename)
std::remove(swp2.c_str());
std::remove(f1.string().c_str());
std::remove(f2.string().c_str());
if (old_xdg) {
setenv("XDG_STATE_HOME", old_xdg, 1);
if (!old_xdg.empty()) {
setenv("XDG_STATE_HOME", old_xdg.c_str(), 1);
} else {
unsetenv("XDG_STATE_HOME");
}