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Add WAL persistence to VSR log

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Port the Write-Ahead Log implementation from raft/ into the VSR
server. Log entries are now written to disk with FNV-1a checksums
and fsynced before updating in-memory state. On startup, the WAL
file is loaded and validated, replacing the boot marker for crash
detection. View changes and recovery use atomic rename (tmp.log ->
vsr.log) to replace the WAL safely.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
cozis
2026-02-22 16:28:39 +01:00
co-authored by Claude Opus 4.6
parent 487f3bf010
commit 5688860719
10 changed files with 503 additions and 136 deletions
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build.sh
+3 -3
View File
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gcc src/basic.c src/file_system.c src/byte_queue.c src/message.c src/tcp.c src/server.c src/client.c src/random_client.c src/main.c src/log.c src/client_table.c src/invariant_checker.c src/chunk_store.c src/metadata.c quakey/src/mockfs.c quakey/src/quakey.c -o toastyfs_simulation -Iquakey/include -Iinclude -I. -Wall -Wextra -ggdb -O0 -DMAIN_SIMULATION -DFAULT_INJECTION
gcc src/basic.c src/file_system.c src/byte_queue.c src/message.c src/tcp.c src/server.c src/main.c src/log.c src/client_table.c src/chunk_store.c src/metadata.c -o toastyfs -Iquakey/include -Iinclude -I. -Wall -Wextra -ggdb -O0 -DMAIN_SERVER
gcc src/basic.c src/file_system.c src/byte_queue.c src/message.c src/tcp.c src/server.c src/client.c src/random_client.c src/main.c src/log.c src/client_table.c src/chunk_store.c src/metadata.c -o toastyfs_random_client -Iquakey/include -Iinclude -I. -Wall -Wextra -ggdb -O0 -DMAIN_CLIENT
gcc src/basic.c src/file_system.c src/byte_queue.c src/message.c src/tcp.c src/server.c src/client.c src/random_client.c src/main.c src/wal.c src/client_table.c src/invariant_checker.c src/chunk_store.c src/metadata.c quakey/src/mockfs.c quakey/src/quakey.c -o toastyfs_simulation -Iquakey/include -Iinclude -I. -Wall -Wextra -ggdb -O0 -DMAIN_SIMULATION -DFAULT_INJECTION
gcc src/basic.c src/file_system.c src/byte_queue.c src/message.c src/tcp.c src/server.c src/main.c src/wal.c src/client_table.c src/chunk_store.c src/metadata.c -o toastyfs -Iquakey/include -Iinclude -I. -Wall -Wextra -ggdb -O0 -DMAIN_SERVER
gcc src/basic.c src/file_system.c src/byte_queue.c src/message.c src/tcp.c src/server.c src/client.c src/random_client.c src/main.c src/wal.c src/client_table.c src/chunk_store.c src/metadata.c -o toastyfs_random_client -Iquakey/include -Iinclude -I. -Wall -Wextra -ggdb -O0 -DMAIN_CLIENT