Conversation compacted


This session is being continued from a previous conversation that ran out of context. The summary below covers the earlier portion of the conversation.

Summary:
1. Primary Request and Intent:
   The user asked for overnight autonomous optimization of the geocoder build process on node 3, targeting all single-threaded bottlenecks. Over multiple sessions, this expanded to:
   - Optimize build from 54m to as fast as possible (achieved 12m 22s, 77% faster)
   - Replace osmium with a custom parallel PBF reader
   - Add CPU/memory profiling per phase
   - Validate all output against pre-optimization baseline
   - Implement Geofabrik polygon-based continent boundaries with coordinate-level filtering
   - Fix quality variant polygon dropping
   - Test on node 2b (80 cgroup CPUs, 192 GiB) and optimize for memory-constrained machines
   - Investigate binary patch generation for incremental updates between daily builds
   - Keep a markdown log of changes and results

2. Key Technical Concepts:
   - Custom PBF reader with streaming decode (no intermediate objects)
   - Producer-consumer vs all-threads-do-I/O vs I/O semaphore for parallel reads
   - Dense node index (111 GiB mmap, MAP_ANONYMOUS with MAP_NORESERVE)
   - S2 cell-based spatial indexing for geocoding
   - Sorted pair arrays for cache-friendly continent filtering
   - Precomputed continent bitmasks (one S2 lookup per cell instead of 8)
   - Bitset-based ID collection (replaces hash sets for continent filtering)
   - Point-in-polygon ray casting for Geofabrik boundary matching
   - posix_fadvise(POSIX_FADV_WILLNEED) for page cache warming
   - zstd --patch-from for binary diff/patch generation
   - getrusage(RUSAGE_SELF) for per-phase CPU profiling
   - Thread-local storage pattern for parallel PBF processing
   - Binary search blob classification (32 decompressions vs 50K)

3. Files and Code Sections:
   - **builder/src/build_index.cpp** — Main build pipeline (~1500 lines)
     - Contains DenseIndex struct (PackedLocation with int32 lat/lon), all pass processing
     - Pass 0 was attempted (way ref scan) but reverted (ways reference 82% of nodes)
     - Pass 1: relation scanning via PbfFile::read_blocks with "r" filter
     - Pass 2: node streaming via PbfFile::read_nodes_streaming with thread-local addr collection
     - Pass 2b: way streaming via PbfFile::read_ways_streaming with single-pass tag extraction, early exit, bitset admin lookup
     - Admin polygon sorting (largest-first by vertex_count)
     - Precomputed continent bitmasks using point_in_polygon from Geofabrik .poly files
     - Bounded concurrent continent processing (4 concurrent, largest-first by bbox area)
     - Key: `unsigned int num_threads = std::max(1u, std::thread::hardware_concurrency() - 1);`
     - Key: CompactIndex was attempted but reverted (ways reference 10.3B of 12.5B nodes)
     - Key: File-backed mmap was attempted but reverted (MAP_SHARED write overhead worse)
     - Key: Paged dense index was attempted but reverted (13K separate mmap regions worse on NUMA)

   - **builder/src/pbf_reader.h** — Custom PBF reader header
     - PbfTags: string table indices (uint32 pairs), not string copies
     - PbfNode: id, lat, lng, PbfTags
     - PbfWay: id, refs_offset/refs_count (into PbfBlock::way_refs flat array), PbfTags
     - PbfRelation: id, members (type, ref, role_sid), PbfTags
     - PbfBlock: string_table, nodes, ways, way_refs (flat), relations
     - NodeCallback/WayCallback: streaming decode function types
     - PbfFile class: scan blobs, classify (binary search), read_blocks, read_nodes_streaming, read_ways_streaming
     - IoSemaphore: limits concurrent preads via mutex+condition_variable

   - **builder/src/pbf_reader.cpp** — Custom PBF reader implementation (~1100 lines)
     - scan_pbf_blobs: sequential blob header scan
     - read_and_decompress_blob: pread + zlib inflate
     - read_and_decompress_blob_into: reusable buffer version with thread-local z_stream
     - decode_pbf_blob / decode_pbf_blob_into: protobuf parsing into PbfBlock
     - decode_nodes_streaming: zero-copy varint decode, single-pass, inline callback
     - decode_ways_streaming: thread-local reusable refs/keys/vals buffers
     - decompress_blob_from_mmap: removed (reverted to pread)
     - classify_blobs: binary search for node→way and way→relation boundaries
     - posix_fadvise(POSIX_FADV_WILLNEED) on construction
     - IoSemaphore with max_io = min(num_threads, max(8, num_threads/2)), configurable via BUILD_MAX_IO env var
     - Producer-consumer model was attempted but reverted (mutex overhead hurt node 3)

   - **builder/src/continent_filter.h/cpp** — Continent filtering
     - filter_by_bbox: original bbox-based filter
     - filter_by_bbox_masked: uses precomputed bitmasks + optional polygon for coordinate-level filtering
     - Bitset ID collection (per-thread bitsets merged with OR to avoid race condition)
     - Sorted pair remap (filter_and_remap_sorted) produces out.sorted_way/addr/interp_cells
     - Admin still uses hash map remap (has interior flags)

   - **builder/src/continent_boundaries.h/cpp** — Geofabrik polygon boundaries
     - parse_poly_file: parses .poly format (lng lat per line)
     - point_in_polygon: ray casting algorithm
     - get_continent_polygons: loads from builder/data/*.poly files
     - Order must match kContinents[] in continent_filter.cpp

   - **builder/src/geometry.h** — Geometry utilities
     - simplify_polygon_epsilon: now enforces minimum 4 vertices via binary search for epsilon
     - is_included_highway: first-character switch instead of 8 sequential strcmps

   - **builder/src/cell_index.cpp** — Index file writing
     - Removed 32-thread cap in write_entries_from_sorted
     - Quality variant generation with min-vertex enforcement

   - **builder/src/interpolation.cpp** — Deterministic interp endpoint resolution
     - addr_less comparator: lexicographic housenumber then street name tiebreaker

   - **builder/src/parsed_data.h** — Phase timer with CPU/memory profiling
     - CpuTicks using getrusage(RUSAGE_SELF)
     - log_phase reports wall time, cores used, utilization %, RSS MiB

   - **builder/data/*.poly** — Geofabrik continent boundary files (8 files)

   - **builder/test/compare_indexes.cpp** — Semantic comparison tool
     - Fingerprints: way_fingerprint (name|sorted_nodes), addr_fingerprint (lat,lng|hn|street), admin_fingerprint
     - Multiset comparison with frequency maps

   - **builder/test/deep_compare.cpp** — Deep diff analysis showing coordinates of mismatched items
   - **builder/test/name_overlap.py** — Analyzes whether mismatches are geometry changes vs truly missing data
   - **builder/OPTIMIZATION_LOG.md** — Comprehensive log of 35+ optimizations

4. Errors and fixes:
   - **Continent street_entries.bin was empty**: When cell map rebuild was eliminated, continent ways had no cell→way mapping. Fixed by producing sorted_way/addr/interp_cells in filter_by_bbox_masked.
   - **PBF way callback used `return` instead of `continue`**: Inside lambda for-loop, `return` exits the lambda, skipping remaining ways in the block. Caused 50% of ways to be missed. Fixed by changing to `continue`.
   - **Race condition in continent bitset**: Concurrent `bitset[id/8] |= (1<<(id%8))` from multiple threads lost writes (non-atomic read-modify-write). Caused 5 missing address points in Europe. Fixed with per-thread bitsets merged with OR.
   - **Quality variant polygon dropping**: simplify_polygon_epsilon could reduce below 3 vertices, causing polygons to be silently dropped (947K → 432K at q2.5). User said "we shouldn't simplify so much that we are dropping polygons." Fixed by binary search for minimum epsilon preserving ≥4 vertices.
   - **Bus error with file-backed mmap**: /tmp was 88 GiB tmpfs, dense index is 111 GiB. Fixed by using TMPDIR or cwd instead of /tmp. Later reverted entirely because MAP_SHARED write overhead made it 2x slower.
   - **protozero packed_field_sint64 API mismatch**: protozero doesn't have this type. Fixed by collecting into vectors instead.
   - **4 admin polygon mismatches after simplification change**: The binary search epsilon produces slightly different vertex coordinates. Expected from the improved simplification.
   - **Node 2b GLIBC mismatch**: Binary compiled on node 3 (glibc 2.38) couldn't run on node 2b (Ubuntu 22.04, glibc 2.35). Fixed by compiling directly on node 2b.
   - **Node 2b repeated crashes**: Hardware memory configuration issues causing hard crashes. Not OOM-related.
   - User feedback: "don't just make changes, verify with me first", "give me updates on the CPU usage for each phase as we progress", "only a single core is active on the machine right now", "the background writes do not consume the cpu", "We should also include average memory usage during each phase", "We should always try to use aria2 for parallel downloads", "Is it not done yet?", "the goal is to get closer or match the europe pbf", "We shouldn't keep the original vertices, we should just make sure to not simplify below 3 or 4 vertices"

5. Problem Solving:
   - **Continent filter single-core issue**: Investigated extensively. Turned out the cell map remap phase was iterating a 48.9M entry hash map (cell_to_addrs) single-threaded within each async task. Fixed by switching to sorted pair remap.
   - **Pass 2/2b CPU underutilization**: Added per-thread timing (read/decode/callback) to identify bottleneck. Found read phase dominates (74% of thread time on node 2b). Implemented I/O semaphore to reduce contention.
   - **Memory pressure on node 2b**: 111 GiB index + 87 GiB PBF > 192 GiB cgroup. Tried file-backed mmap (slower), paged index (slower on NUMA), compact index (82% occupancy makes it larger). The I/O semaphore + fadvise is the best practical solution.
   - **Europe vs standalone comparison**: Deep analysis confirmed differences were from different PBF download dates (95-97% geometry changes, 3-5% genuinely different streets).
   - **Binary patch generation**: Currently testing zstd --patch-from. Initial results show 1.9 GiB patch for 17 GiB dataset (4 days of Europe changes). Coordinate files patch extremely well (<1%).

6. All user messages:
   - "I am going to leave you running overnight and I want you to optimise the build process as much as possible..."
   - "Did you validate the changes against the index files before these changes?"
   - "At this stage, don't just make changes, verify with me first"
   - "No, nothing is consuming the other cores, it just sits on 1 core the entire time"
   - "to be very clear, when i was watching htop during the continent sections, the cpu was only using a single core the entire time, for many minutes"
   - "What stage is running right at this moment"
   - "the background writes do not consume the cpu, it just sits on 1 core the entire time"
   - "No, this is not correct. When I say that I only see a single thread active in htop, I mean all the other cores are completely inactive, nothing is using them at all"
   - "You can add debugging if that helps and run the process again"
   - "A significant section of the continent pipeline seems to be single threaded"
   - "give me updates on the CPU usage for each phase as we progress"
   - "We should also include average memory usage during each phase in the analysis"
   - "Is there a way to ensure that the cell covering never misses part of the polygon"
   - "How complex do we think this sorting will be?"
   - "Lets implement this then, commit it, then lets come back to the other possible optimisations"
   - "We should also investigate that dedup parallelization"
   - "Lets investigate how much it would take to reimplement the PBF reading to parallelise it"
   - "Yep, lets go for it" (PBF reader rewrite)
   - "Before we start, is this our last dependency on osmium, or do we use it for other things still?"
   - "How did you confirm it's a data freshness issue?"
   - "Can you give me a breakdown of all the files from the latest planet build"
   - "Why would we drop them, we shouldn't simplify so much that we are dropping polygons, surely?"
   - "We shouldn't keep the original vertices, we should just make sure to not simplify below 3 or 4 vertices"
   - "Lets try connecting to node 2b and run the full build there"
   - "Make sure to check the cgroup limits as it is a kube pod"
   - "Also just setup a ssh socket that holds the connection open permanently"
   - "These instances are ephemeral so if you ever drop the connection, everything gets wiped"
   - "Remember you can pull the planet.pbf from the local PVC http endpoint"
   - "We should always try to use aria2 for parallel downloads"
   - "I don't think we needed to revert, these machines actually have a problem with their memory configuration"
   - "I mean, node 2b is a significantly older machine, can you run the job there again and measure the RSS and CPU usage"
   - "How do you know that it is memory latency, I would expect that even if we have memory latency, we should still be able to ramp the cores up"
   - "We should investigate if there are any better ways to do this. Potentially we could offload from memory onto disk"
   - "Lets give it a try and test it again" (file-backed mmap)
   - "Think about any other approaches we can have to increase the CPU utilisation on node 2b"
   - "Yep" (producer-consumer model)
   - "Did we ever test producer consumer on node 2b?"
   - "We could also attempt to optimise this new approach before we revert"
   - "Tune the max_io"
   - "Lets do a full build and measure the total RSS required"
   - "The next thing we want to do is be able to create patch files so users can download the patch from one day to the next"
   - Various approval messages for OIDC codes
   - "elon-is-insane" (node 3 SSH password)
   - "can we not just download polygons for the continents, or construct them from our countries?"
   - "1" (chose Geofabrik poly files option)
   - "the goal is to get closer or match the europe pbf"
   - "do a deep comparison of both to see what is missing"
   - "download the latest europe and planet pbf now"
   - "Search for improvements to the europe continent section"
   - "Is it possible to sort the polygons within the continent too by size?"
   - "Is it possible to process the largest polygons first in the list and then use all cores for a single continent at a time?"
   - "Keep optimising" (Pass 2/2b)
   - "Lets try that" (prefetching for way processing)
   - "keep the cleanup but revert the optimisation" (prefetch didn't help)
   - "Are there further improvements we can make?"
   - "Lets investigate that larger change to the index structure"
   - "Is there nothing else we can improve there, ignoring memory access time, is the code as efficient as it can be?"
   - "Pass 2 and 2B are still not really much faster"
   - "Which sections does point 2 affect?" (32-thread cap)
   - "I don't see a reason for a cap, do you?"
   - "As for the memory thrashing, is there anything we can offload from memory onto disk"
   - "Why do we need the entire PBF mmap in memory?"
   - "I think that 10s saved was before we moved to streaming, too"
   - "Finish running the comparison first though" (Europe vs standalone)
   - "Keep monitoring"
   - "Can you give me the europe continent in the different qualities"
   - "Send it again" / "Approved" / "It's approved" / "Try again now" (various OIDC)
   - "Run this new version on node 3 to see what the speed is like"
   - "Just test both at the same time to save time"
   - "we are optimising pass 1, 2 and 2b, so if those are too slow, there is no point continuing the test"
   - "I don't think this was an OOM situation" (node 2b crash)
   - "I approved it straight away" (OIDC)
   - "It should be back up by now" (node 2b)
   - "Do you still happen to have an open containerssh session to a node"
   - "Try again now" / "Approved" / "Send it again" (OIDC reconnections)
   - "Lets give it a go and test it again" (paged index)
   - "If it's that bad we can probably kill it and work on another approach" (paged index slow)
   - "I don't think we needed to revert" (fadvise crash was hardware not OOM)
   - "Lets give it a try and test it again" (file-backed mmap)
   - "Yep" (producer-consumer)
   - "We could also attempt to optimise this new approach before we revert" (producer-consumer)
   - "Did we ever test producer consumer on node 2b?"
   - "Tune the max_io"
   - "Lets do a full build and measure the total RSS required"
   - "Are there further improvements we can make?"
   - "The next thing we want to do is be able to create patch files..."

7. Pending Tasks:
   - Complete binary patch verification: the patch application test was partially working (admin_cells.bin succeeded but the batch test had issues). Need to fix the batch apply script and verify all files match.
   - Verify patch workflow end-to-end: old_build + patch = new_build (byte-identical)
   - Consider testing different compression levels for optimal patch size vs speed tradeoff
   - Consider patching for all modes (full, no-addresses, admin) and quality variants

8. Current Work:
   Testing binary patch generation using `zstd --patch-from` between two Europe builds (March 21 vs March 25 PBFs).

   Successfully generated patches for all 14 files in europe/full/:
   - Total patch size: 1.9 GiB for 17 GiB dataset
   - Coordinate files (vertices, nodes) patch at <1%
   - Index/entry files at 24-76%

   The batch patch application test failed (all output files 0 bytes) but a single-file test succeeded:
   ```
   zstd --patch-from=$HOME/test-europe-old/full/admin_cells.bin -d $HOME/patches/full/admin_cells.bin.patch -o /tmp/test_patch_admin_cells.bin -f
   ```
   Output: 1,693,932 bytes (correct size matching new build).

   The batch test failure was likely a shell quoting/variable expansion issue in the loop, not a zstd problem.

9. Optional Next Step:
   Fix the batch patch application script and verify all 14 files produce byte-identical output to the fresh new build. The single-file test proved the approach works. The user's request was: "Can you investigate the optimal way to do this, do builds with an old and new planet or continent file, then generate the patch and make sure it equals what we had when generating fresh?"

   The last assistant message before summary request showed the single-file test working:
   ```
   /home/michtest/patches/full/admin_cells.bin.patch: 1693932 bytes
   -rw-rw-r-- 1 michtest michtest 1693932 Mar 26 22:38 /tmp/test_patch_admin_cells.bin
   ```

   Need to: run the batch apply with correct syntax, verify each patched file matches the fresh build byte-for-byte, then report results.

If you need specific details from before compaction (like exact code snippets, error messages, or content you generated), read the full transcript at: /root/.claude/projects/-root-traccar-geocoder/af1c4baa-0f9a-4420-a8b3-ce20dc28c8b9.jsonl
Continue the conversation from where it left off without asking the user any further questions. Resume directly — do not acknowledge the summary, do not recap what was happening, do not preface with "I'll continue" or similar. Pick up the last task as if the break never happened.


Bash

ssh node3 'ls ~/patches/full/ | head -20'

List patch files on node 3


ssh node3 'ls ~/test-europe-old/full/ ~/test-europe-new/full/ 2>/dev/null | head -40'

List old and new build files


Error: Exit code 255
Warning: Permanently added '100.113.88.121' (ED25519) to the list of known hosts.
Permission denied, please try again.
Permission denied, please try again.
michtest@100.113.88.121: Permission denied (publickey,password).


<tool_use_error>Cancelled: parallel tool call Bash(ssh node3 'ls ~/patches/full/ | head -20…) errored</tool_use_error>


<system-reminder>This memory is 5 days old. Memories are point-in-time observations, not live state — claims about code behavior or file:line citations may be outdated. Verify against current code before asserting as fact.</system-reminder>
     1→---
     2→name: node_access
     3→description: SSH access details for build nodes via Tailscale (immich tailnet)
     4→type: reference
     5→---
     6→
     7→All nodes accessed via Tailscale (userspace networking mode, `tailscale nc` proxy).
     8→SSH multiplexing configured in ~/.ssh/config with ControlPath /tmp/ssh-mux/.
     9→
    10→- **Node 3** (michtest-ng): 100.113.88.121, user michtest, password `elon-is-insane`
    11→  - 32 cores, 174GB RAM + 50GB swap, no cgroup
    12→  - /tmp is 79GB tmpfs (RAM-backed) — use ~/ for large files
    13→  - Has PBFs at ~/pbf/ (planet, germany, monaco), old indexes at ~/indexes-old-code/
    14→  - Master connection: `sshpass -p 'elon-is-insane' ssh -M -o ServerAliveInterval=30 node3 "sleep 99999" &`
    15→
    16→- **Node 2a**: 10.10.10.12:30022, user root, OIDC auth via zitadel.internal.immich.cloud
    17→  - 88 physical cores, 251GB physical — cgroup limited to 44 CPUs, 192GB RAM
    18→  - Ephemeral pods — session must be held open or pod is wiped
    19→  - Each new SSH connection requires fresh OIDC device code approval
    20→
    21→- **Node 2b**: 10.10.10.11:30022, user root, same OIDC setup as 2a
    22→  - Same specs as 2a (44c/192GB cgroup)
    23→
    24→**Important**: Nodes 2a/2b can only have ONE open SSH connection at a time. Use SSH multiplexing.
    25→Tailscale requires `--accept-routes` for 10.10.10.x subnet access.
    26→

---
name: node_access
description: SSH access details for build nodes via Tailscale (immich tailnet)
type: reference
---

All nodes accessed via Tailscale (userspace networking mode, `tailscale nc` proxy).
SSH multiplexing configured in ~/.ssh/config with ControlPath /tmp/ssh-mux/.

- **Node 3** (michtest-ng): 100.113.88.121, user michtest, password `elon-is-insane`
  - 32 cores, 174GB RAM + 50GB swap, no cgroup
  - /tmp is 79GB tmpfs (RAM-backed) — use ~/ for large files
  - Has PBFs at ~/pbf/ (planet, germany, monaco), old indexes at ~/indexes-old-code/
  - Master connection: `sshpass -p 'elon-is-insane' ssh -M -o ServerAliveInterval=30 node3 "sleep 99999" &`

- **Node 2a**: 10.10.10.12:30022, user root, OIDC auth via zitadel.internal.immich.cloud
  - 88 physical cores, 251GB physical — cgroup limited to 44 CPUs, 192GB RAM
  - Ephemeral pods — session must be held open or pod is wiped
  - Each new SSH connection requires fresh OIDC device code approval

- **Node 2b**: 10.10.10.11:30022, user root, same OIDC setup as 2a
  - Same specs as 2a (44c/192GB cgroup)

**Important**: Nodes 2a/2b can only have ONE open SSH connection at a time. Use SSH multiplexing.
Tailscale requires `--accept-routes` for 10.10.10.x subnet access.


Check for existing SSH mux sockets


(Bash completed with no output)


mkdir -p /tmp/ssh-mux && sshpass -p 'elon-is-insane' ssh -M -o ServerAliveInterval=30 -o ControlPath=/tmp/ssh-mux/%r@%h:%p -o ControlPersist=yes -o StrictHostKeyChecking=accept-new node3 "echo connected" 2>&1

Establish SSH master connection to node 3


Warning: Permanently added '100.113.88.121' (ED25519) to the list of known hosts.
connected


ssh -o ControlPath=/tmp/ssh-mux/%r@%h:%p node3 'ls ~/patches/full/ 2>/dev/null; echo "---"; ls ~/test-europe-old/full/ ~/test-europe-new/full/ 2>/dev/null | head -40'

List patch and build files on node 3


cat ~/.ssh/config 2>/dev/null | head -30

Check SSH config


Host node3
    HostName 100.113.88.121
    User michtest
    ProxyCommand tailscale nc %h %p
    StrictHostKeyChecking no
    UserKnownHostsFile /dev/null
    ControlMaster auto
    ControlPath /tmp/ssh-mux/node3
    ControlPersist 4h

Host node2a
    HostName 10.10.10.12
    Port 30022
    User root
    ProxyCommand tailscale nc %h %p
    StrictHostKeyChecking no
    UserKnownHostsFile /dev/null


The SSH config uses `ControlPath /tmp/ssh-mux/node3` not the `%r@%h:%p` pattern. Let me reconnect properly.


rm -f /tmp/ssh-mux/node3 && sshpass -p 'elon-is-insane' ssh -o ControlMaster=yes -o ControlPersist=4h node3 "echo connected"

Establish SSH master connection using config ControlPath


ssh node3 'ls ~/patches/full/ 2>/dev/null; echo "==="; ls -la ~/test-europe-old/full/ 2>/dev/null | head -20; echo "==="; ls -la ~/test-europe-new/full/ 2>/dev/null | head -20'

List patches and build directories


ssh -o ControlPath=/tmp/ssh-mux/node3 node3 echo test 2>&1; ls -la /tmp/ssh-mux/node3 2>&1

Debug SSH mux socket state


Error: Exit code 2
Warning: Permanently added '100.113.88.121' (ED25519) to the list of known hosts.
Permission denied, please try again.
Permission denied, please try again.
michtest@100.113.88.121: Permission denied (publickey,password).
ls: cannot access '/tmp/ssh-mux/node3': No such file or directory


The mux socket isn't persisting. The `ControlMaster auto` in config means the first connection should create it, but it's not sticking.


sshpass -p 'elon-is-insane' ssh -o ControlMaster=yes -o ControlPath=/tmp/ssh-mux/node3 -o ControlPersist=4h -o ProxyCommand="tailscale nc %h %p" -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null michtest@100.113.88.121 "echo ok" 2>&1

Force SSH master with explicit options


Warning: Permanently added '100.113.88.121' (ED25519) to the list of known hosts.
ok


Check mux socket exists


Error: Exit code 2
ls: cannot access '/tmp/ssh-mux/node3': No such file or directory


Check mux directory contents


total 9
drwxr-xr-x 2 root root  2 Mar 27 02:56 .
drwxrwxrwt 1 root root 41 Mar 27 02:56 ..


The socket isn't being created — likely the ProxyCommand complicates mux. Let me just use sshpass inline for each command.


sshpass -p 'elon-is-insane' ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ProxyCommand="tailscale nc %h %p" michtest@100.113.88.121 'ls ~/patches/full/ 2>/dev/null; echo "==="; ls -la ~/test-europe-old/full/ 2>/dev/null | head -20; echo "==="; ls -la ~/test-europe-new/full/ 2>/dev/null | head -20'

List patches and builds on node 3


Warning: Permanently added '100.113.88.121' (ED25519) to the list of known hosts.
addr_entries.bin.patch
addr_points.bin.patch
admin_cells.bin.patch
admin_entries.bin.patch
admin_polygons.bin.patch
admin_vertices.bin.patch
geo_cells.bin.patch
interp_entries.bin.patch
interp_nodes.bin.patch
interp_ways.bin.patch
street_entries.bin.patch
street_nodes.bin.patch
street_ways.bin.patch
strings.bin.patch
===
total 7028912
drwxr-xr-x 2 michtest michtest       4096 Mar 26 22:31 .
drwxrwxr-x 5 michtest michtest       4096 Mar 26 22:32 ..
-rw-rw-r-- 1 michtest michtest  394555152 Mar 26 22:31 addr_entries.bin
-rw-rw-r-- 1 michtest michtest 1374269280 Mar 26 22:31 addr_points.bin
-rw-rw-r-- 1 michtest michtest    1693932 Mar 26 22:31 admin_cells.bin
-rw-rw-r-- 1 michtest michtest    6430350 Mar 26 22:31 admin_entries.bin
-rw-rw-r-- 1 michtest michtest   10821768 Mar 26 22:31 admin_polygons.bin
-rw-rw-r-- 1 michtest michtest 1378942528 Mar 26 22:31 admin_vertices.bin
-rw-rw-r-- 1 michtest michtest 1673519400 Mar 26 22:31 geo_cells.bin
-rw-rw-r-- 1 michtest michtest     159512 Mar 26 22:31 interp_entries.bin
-rw-rw-r-- 1 michtest michtest     726304 Mar 26 22:31 interp_nodes.bin
-rw-rw-r-- 1 michtest michtest     335712 Mar 26 22:31 interp_ways.bin
-rw-rw-r-- 1 michtest michtest  586303506 Mar 26 22:31 street_entries.bin
-rw-rw-r-- 1 michtest michtest 1453821288 Mar 26 22:31 street_nodes.bin
-rw-rw-r-- 1 michtest michtest  233429760 Mar 26 22:31 street_ways.bin
-rw-rw-r-- 1 michtest michtest   82546573 Mar 26 22:31 strings.bin
===
total 7033468
drwxr-xr-x 2 michtest michtest       4096 Mar 26 22:38 .
drwxrwxr-x 5 michtest michtest       4096 Mar 26 22:38 ..
-rw-rw-r-- 1 michtest michtest  395005236 Mar 26 22:38 addr_entries.bin
-rw-rw-r-- 1 michtest michtest 1375841776 Mar 26 22:38 addr_points.bin
-rw-rw-r-- 1 michtest michtest    1693932 Mar 26 22:38 admin_cells.bin
-rw-rw-r-- 1 michtest michtest    6425798 Mar 26 22:38 admin_entries.bin
-rw-rw-r-- 1 michtest michtest   10820736 Mar 26 22:38 admin_polygons.bin
-rw-rw-r-- 1 michtest michtest 1379176912 Mar 26 22:38 admin_vertices.bin
-rw-rw-r-- 1 michtest michtest 1674295440 Mar 26 22:38 geo_cells.bin
-rw-rw-r-- 1 michtest michtest     159386 Mar 26 22:38 interp_entries.bin
-rw-rw-r-- 1 michtest michtest     726176 Mar 26 22:38 interp_nodes.bin
-rw-rw-r-- 1 michtest michtest     335424 Mar 26 22:38 interp_ways.bin
-rw-rw-r-- 1 michtest michtest  586571766 Mar 26 22:38 street_entries.bin
-rw-rw-r-- 1 michtest michtest 1454966400 Mar 26 22:38 street_nodes.bin
-rw-rw-r-- 1 michtest michtest  233626176 Mar 26 22:38 street_ways.bin
-rw-rw-r-- 1 michtest michtest   82573397 Mar 26 22:38 strings.bin


Good, all files are there. Now let me verify the patch approach works correctly and think about the user's broader request — they want a patch system that handles changing indexes well, not just raw zstd binary patches.

Let me first understand what the index format looks like to design a smarter patch system.


Agent

Explore index file formats

Prompt:
Explore the geocoder index file formats. I need to understand what each binary file contains and how it's structured. Look at:
1. builder/src/cell_index.cpp - how entries, cells, nodes, ways, vertices, polygons, strings, etc. are written
2. Any header/struct definitions that define the binary layout of each file type
3. The server/runtime code that reads these files (likely in src/ directory) to understand the format

For each file type (geo_cells.bin, street_entries.bin, street_nodes.bin, street_ways.bin, addr_entries.bin, addr_points.bin, admin_cells.bin, admin_entries.bin, admin_polygons.bin, admin_vertices.bin, interp_entries.bin, interp_nodes.bin, interp_ways.bin, strings.bin), tell me:
- What data it contains
- The record size (fixed or variable)
- How records are ordered/indexed
- Whether records reference other files (e.g. string offsets, cell IDs)

Be very thorough - I need this to design a smart incremental update system.


Explore the geocoder index file formats. I need to understand what each binary file contains and how it's structured. Look at:
1. builder/src/cell_index.cpp - how entries, cells, nodes, ways, vertices, polygons, strings, etc. are written
2. Any header/struct definitions that define the binary layout of each file type
3. The server/runtime code that reads these files (likely in src/ directory) to understand the format

For each file type (geo_cells.bin, street_entries.bin, street_nodes.bin, street_ways.bin, addr_entries.bin, addr_points.bin, admin_cells.bin, admin_entries.bin, admin_polygons.bin, admin_vertices.bin, interp_entries.bin, interp_nodes.bin, interp_ways.bin, strings.bin), tell me:
- What data it contains
- The record size (fixed or variable)
- How records are ordered/indexed
- Whether records reference other files (e.g. string offsets, cell IDs)

Be very thorough - I need this to design a smart incremental update system.

Prompt:
Explore the geocoder index file formats. I need to understand what each binary file contains and how it's structured. Look at:
1. builder/src/cell_index.cpp - how entries, cells, nodes, ways, vertices, polygons, strings, etc. are written
2. Any header/struct definitions that define the binary layout of each file type
3. The server/runtime code that reads these files (likely in src/ directory) to understand the format

For each file type (geo_cells.bin, street_entries.bin, street_nodes.bin, street_ways.bin, addr_entries.bin, addr_points.bin, admin_cells.bin, admin_entries.bin, admin_polygons.bin, admin_vertices.bin, interp_entries.bin, interp_nodes.bin, interp_ways.bin, strings.bin), tell me:
- What data it contains
- The record size (fixed or variable)
- How records are ordered/indexed
- Whether records reference other files (e.g. string offsets, cell IDs)

Be very thorough - I need this to design a smart incremental update system.


Bash

find /root/traccar-geocoder -type f -name "*.cpp" -o -name "*.h" | grep -E "(index|cell|street|addr|admin|interp)" | head -30


sshpass -p 'elon-is-insane' ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ProxyCommand="tailscale nc %h %p" michtest@100.113.88.121 'ls -la ~/patches/full/ && echo "===SIZES===" && for f in ~/test-europe-new/full/*.bin; do b=$(basename $f); old=~/test-europe-old/full/$b; patch=~/patches/full/${b}.patch; echo "$b: old=$(stat -c%s $old) new=$(stat -c%s $f) patch=$(stat -c%s $patch) ratio=$(echo "scale=1; $(stat -c%s $patch)*100/$(stat -c%s $f)" | bc)%"; done'

Show patch ratios for all files


     1→#pragma once
     2→
     3→#include <string>
     4→#include <unordered_map>
     5→#include <vector>
     6→
     7→#include "types.h"
     8→#include "parsed_data.h"
     9→
    10→std::vector<uint32_t> write_entries(
    11→    const std::string& path,
    12→    const std::vector<uint64_t>& sorted_cells,
    13→    const std::unordered_map<uint64_t, std::vector<uint32_t>>& cell_map);
    14→
    15→std::vector<uint32_t> write_entries_from_sorted(
    16→    const std::string& path,
    17→    const std::vector<uint64_t>& sorted_cells,
    18→    const std::vector<CellItemPair>& sorted_pairs);
    19→
    20→void write_cell_index(
    21→    const std::string& cells_path,
    22→    const std::string& entries_path,
    23→    const std::unordered_map<uint64_t, std::vector<uint32_t>>& cell_map);
    24→
    25→void write_index(const ParsedData& data, const std::string& output_dir, IndexMode mode);
    26→
    27→// Write admin polygon/vertex files with on-the-fly simplification at a given epsilon scale.
    28→// Scale 0 = uncapped (no simplification). Other files are symlinked/copied from source_dir.
    29→void write_quality_variant(const ParsedData& data, const std::string& source_dir,
    30→                           const std::string& output_dir, double epsilon_scale);
    31→


     1→#include "cell_index.h"
     2→
     3→#include <algorithm>
     4→#include <atomic>
     5→#include <cstring>
     6→#include <fstream>
     7→#include <future>
     8→#include <iostream>
     9→#include <thread>
    10→#include <unordered_map>
    11→#include <unordered_set>
    12→
    13→#include <unistd.h>
    14→
    15→#include "geometry.h"
    16→#include "s2_helpers.h"
    17→
    18→std::vector<uint32_t> write_entries(
    19→    const std::string& path,
    20→    const std::vector<uint64_t>& sorted_cells,
    21→    const std::unordered_map<uint64_t, std::vector<uint32_t>>& cell_map
    22→) {
    23→    struct CellRef { uint64_t cell_id; const std::vector<uint32_t>* ids; };
    24→    std::vector<CellRef> sorted_refs;
    25→    sorted_refs.reserve(cell_map.size());
    26→    for (auto& [id, ids] : cell_map) sorted_refs.push_back({id, &ids});
    27→    std::sort(sorted_refs.begin(), sorted_refs.end(),
    28→        [](const CellRef& a, const CellRef& b) { return a.cell_id < b.cell_id; });
    29→
    30→    std::vector<uint32_t> offsets(sorted_cells.size(), NO_DATA);
    31→    size_t total_size = 0;
    32→    for (auto& r : sorted_refs) total_size += sizeof(uint16_t) + r.ids->size() * sizeof(uint32_t);
    33→
    34→    std::vector<char> buf;
    35→    buf.reserve(total_size);
    36→    uint32_t current = 0;
    37→    size_t ri = 0;
    38→    for (uint32_t si = 0; si < sorted_cells.size() && ri < sorted_refs.size(); si++) {
    39→        if (sorted_cells[si] < sorted_refs[ri].cell_id) continue;
    40→        if (sorted_cells[si] > sorted_refs[ri].cell_id) { si--; ri++; continue; }
    41→        offsets[si] = current;
    42→        const auto& ids = *sorted_refs[ri].ids;
    43→        uint16_t count = static_cast<uint16_t>(std::min(ids.size(), size_t(MAX_VERTEX_COUNT)));
    44→        buf.insert(buf.end(), reinterpret_cast<const char*>(&count),
    45→                   reinterpret_cast<const char*>(&count) + sizeof(count));
    46→        buf.insert(buf.end(), reinterpret_cast<const char*>(ids.data()),
    47→                   reinterpret_cast<const char*>(ids.data()) + ids.size() * sizeof(uint32_t));
    48→        current += sizeof(uint16_t) + ids.size() * sizeof(uint32_t);
    49→        ri++;
    50→    }
    51→    std::ofstream f(path, std::ios::binary);
    52→    f.write(buf.data(), buf.size());
    53→    return offsets;
    54→}
    55→
    56→std::vector<uint32_t> write_entries_from_sorted(
    57→    const std::string& path,
    58→    const std::vector<uint64_t>& sorted_cells,
    59→    const std::vector<CellItemPair>& sorted_pairs
    60→) {
    61→    std::vector<uint32_t> offsets(sorted_cells.size(), NO_DATA);
    62→    if (sorted_pairs.empty()) {
    63→        std::ofstream f(path, std::ios::binary);
    64→        return offsets;
    65→    }
    66→
    67→    unsigned int nthreads = std::thread::hardware_concurrency();
    68→    if (nthreads == 0) nthreads = 4;
    69→    size_t cells_per_chunk = (sorted_cells.size() + nthreads - 1) / nthreads;
    70→
    71→    struct ChunkResult {
    72→        std::vector<char> buf;
    73→        size_t cell_start, cell_end;
    74→        uint32_t local_size;
    75→    };
    76→    std::vector<ChunkResult> chunks(nthreads);
    77→
    78→    std::vector<std::thread> threads;
    79→    for (unsigned int t = 0; t < nthreads; t++) {
    80→        size_t cs = t * cells_per_chunk;
    81→        size_t ce = std::min(cs + cells_per_chunk, sorted_cells.size());
    82→        if (cs >= sorted_cells.size()) break;
    83→
    84→        threads.emplace_back([&, t, cs, ce]() {
    85→            auto& chunk = chunks[t];
    86→            chunk.cell_start = cs;
    87→            chunk.cell_end = ce;
    88→            chunk.local_size = 0;
    89→
    90→            size_t pi = std::lower_bound(sorted_pairs.begin(), sorted_pairs.end(),
    91→                sorted_cells[cs], [](const CellItemPair& p, uint64_t id) {
    92→                    return p.cell_id < id;
    93→                }) - sorted_pairs.begin();
    94→
    95→            for (size_t si = cs; si < ce && pi < sorted_pairs.size(); si++) {
    96→                if (sorted_cells[si] < sorted_pairs[pi].cell_id) continue;
    97→                while (pi < sorted_pairs.size() && sorted_pairs[pi].cell_id < sorted_cells[si]) pi++;
    98→                if (pi >= sorted_pairs.size() || sorted_pairs[pi].cell_id != sorted_cells[si]) continue;
    99→
   100→                offsets[si] = chunk.local_size;
   101→                size_t start = pi;
   102→                while (pi < sorted_pairs.size() && sorted_pairs[pi].cell_id == sorted_cells[si]) pi++;
   103→                uint16_t count = static_cast<uint16_t>(std::min(pi - start, size_t(MAX_VERTEX_COUNT)));
   104→                size_t entry_size = sizeof(uint16_t) + (pi - start) * sizeof(uint32_t);
   105→                size_t buf_pos = chunk.buf.size();
   106→                chunk.buf.resize(buf_pos + entry_size);
   107→                memcpy(chunk.buf.data() + buf_pos, &count, sizeof(count));
   108→                for (size_t k = start; k < pi; k++) {
   109→                    memcpy(chunk.buf.data() + buf_pos + sizeof(uint16_t) + (k - start) * sizeof(uint32_t),
   110→                           &sorted_pairs[k].item_id, sizeof(uint32_t));
   111→                }
   112→                chunk.local_size += entry_size;
   113→            }
   114→        });
   115→    }
   116→    for (auto& t : threads) t.join();
   117→
   118→    uint32_t global_offset = 0;
   119→    for (auto& chunk : chunks) {
   120→        for (size_t si = chunk.cell_start; si < chunk.cell_end; si++) {
   121→            if (offsets[si] != NO_DATA) offsets[si] += global_offset;
   122→        }
   123→        global_offset += chunk.local_size;
   124→    }
   125→
   126→    std::vector<char> buf;
   127→    buf.reserve(global_offset);
   128→    for (auto& chunk : chunks) buf.insert(buf.end(), chunk.buf.begin(), chunk.buf.end());
   129→
   130→    std::ofstream f(path, std::ios::binary);
   131→    f.write(buf.data(), buf.size());
   132→    return offsets;
   133→}
   134→
   135→void write_cell_index(
   136→    const std::string& cells_path,
   137→    const std::string& entries_path,
   138→    const std::unordered_map<uint64_t, std::vector<uint32_t>>& cell_map
   139→) {
   140→    std::vector<std::pair<uint64_t, std::vector<uint32_t>>> sorted(cell_map.begin(), cell_map.end());
   141→    std::sort(sorted.begin(), sorted.end());
   142→
   143→    { std::ofstream f(cells_path, std::ios::binary);
   144→      uint32_t current_offset = 0;
   145→      for (const auto& [cell_id, ids] : sorted) {
   146→          f.write(reinterpret_cast<const char*>(&cell_id), sizeof(cell_id));
   147→          f.write(reinterpret_cast<const char*>(&current_offset), sizeof(current_offset));
   148→          current_offset += sizeof(uint16_t) + ids.size() * sizeof(uint32_t);
   149→      } }
   150→
   151→    { std::ofstream f(entries_path, std::ios::binary);
   152→      for (const auto& [cell_id, ids] : sorted) {
   153→          uint16_t count = static_cast<uint16_t>(std::min(ids.size(), size_t(MAX_VERTEX_COUNT)));
   154→          f.write(reinterpret_cast<const char*>(&count), sizeof(count));
   155→          f.write(reinterpret_cast<const char*>(ids.data()), ids.size() * sizeof(uint32_t));
   156→      } }
   157→}
   158→
   159→void write_index(const ParsedData& data, const std::string& output_dir, IndexMode mode) {
   160→    ensure_dir(output_dir);
   161→    auto _wt = std::chrono::steady_clock::now();
   162→
   163→    bool write_streets = (mode != IndexMode::AdminOnly);
   164→    bool write_addresses = (mode == IndexMode::Full);
   165→
   166→    if (write_streets) {
   167→        std::vector<uint64_t> sorted_geo_cells;
   168→        {
   169→            auto extract_unique_cells = [](const std::vector<CellItemPair>& pairs) {
   170→                std::vector<uint64_t> cells;
   171→                cells.reserve(pairs.size() / 2);
   172→                for (size_t i = 0; i < pairs.size(); ) {
   173→                    cells.push_back(pairs[i].cell_id);
   174→                    uint64_t cur = pairs[i].cell_id;
   175→                    while (i < pairs.size() && pairs[i].cell_id == cur) i++;
   176→                }
   177→                return cells;
   178→            };
   179→            auto extract_from_map = [](const std::unordered_map<uint64_t, std::vector<uint32_t>>& m) {
   180→                std::vector<uint64_t> cells;
   181→                cells.reserve(m.size());
   182→                for (auto& [id, _] : m) cells.push_back(id);
   183→                std::sort(cells.begin(), cells.end());
   184→                return cells;
   185→            };
   186→
   187→            std::vector<uint64_t> way_cells, addr_cells, interp_cells;
   188→            {
   189→                auto f1 = std::async(std::launch::async, [&] {
   190→                    return !data.sorted_way_cells.empty()
   191→                        ? extract_unique_cells(data.sorted_way_cells)
   192→                        : extract_from_map(data.cell_to_ways);
   193→                });
   194→                if (write_addresses) {
   195→                    auto f2 = std::async(std::launch::async, [&] {
   196→                        return !data.sorted_addr_cells.empty()
   197→                            ? extract_unique_cells(data.sorted_addr_cells)
   198→                            : extract_from_map(data.cell_to_addrs);
   199→                    });
   200→                    auto f3 = std::async(std::launch::async, [&] {
   201→                        return !data.sorted_interp_cells.empty()
   202→                            ? extract_unique_cells(data.sorted_interp_cells)
   203→                            : extract_from_map(data.cell_to_interps);
   204→                    });
   205→                    addr_cells = f2.get();
   206→                    interp_cells = f3.get();
   207→                }
   208→                way_cells = f1.get();
   209→            }
   210→
   211→            sorted_geo_cells.reserve(way_cells.size() + addr_cells.size() + interp_cells.size());
   212→            std::merge(way_cells.begin(), way_cells.end(), addr_cells.begin(), addr_cells.end(),
   213→                       std::back_inserter(sorted_geo_cells));
   214→            if (!interp_cells.empty()) {
   215→                std::vector<uint64_t> tmp;
   216→                tmp.reserve(sorted_geo_cells.size() + interp_cells.size());
   217→                std::merge(sorted_geo_cells.begin(), sorted_geo_cells.end(),
   218→                           interp_cells.begin(), interp_cells.end(), std::back_inserter(tmp));
   219→                sorted_geo_cells = std::move(tmp);
   220→            }
   221→            sorted_geo_cells.erase(std::unique(sorted_geo_cells.begin(), sorted_geo_cells.end()),
   222→                                    sorted_geo_cells.end());
   223→        }
   224→
   225→        std::vector<uint32_t> street_offsets, addr_offsets, interp_offsets;
   226→        {
   227→            auto f1 = std::async(std::launch::async, [&]() {
   228→                if (!data.sorted_way_cells.empty())
   229→                    return write_entries_from_sorted(output_dir + "/street_entries.bin", sorted_geo_cells, data.sorted_way_cells);
   230→                return write_entries(output_dir + "/street_entries.bin", sorted_geo_cells, data.cell_to_ways);
   231→            });
   232→            if (write_addresses) {
   233→                auto f2 = std::async(std::launch::async, [&]() {
   234→                    if (!data.sorted_addr_cells.empty())
   235→                        return write_entries_from_sorted(output_dir + "/addr_entries.bin", sorted_geo_cells, data.sorted_addr_cells);
   236→                    return write_entries(output_dir + "/addr_entries.bin", sorted_geo_cells, data.cell_to_addrs);
   237→                });
   238→                auto f3 = std::async(std::launch::async, [&]() {
   239→                    if (!data.sorted_interp_cells.empty())
   240→                        return write_entries_from_sorted(output_dir + "/interp_entries.bin", sorted_geo_cells, data.sorted_interp_cells);
   241→                    return write_entries(output_dir + "/interp_entries.bin", sorted_geo_cells, data.cell_to_interps);
   242→                });
   243→                addr_offsets = f2.get();
   244→                interp_offsets = f3.get();
   245→            }
   246→            street_offsets = f1.get();
   247→        }
   248→
   249→        log_phase("  Write: entry files", _wt);
   250→        {
   251→            size_t n = sorted_geo_cells.size();
   252→            size_t row_size = sizeof(uint64_t) + 3 * sizeof(uint32_t);
   253→            std::vector<char> buf(n * row_size);
   254→            if (addr_offsets.empty()) addr_offsets.resize(n, NO_DATA);
   255→            if (interp_offsets.empty()) interp_offsets.resize(n, NO_DATA);
   256→
   257→            unsigned int nthreads = std::thread::hardware_concurrency();
   258→            if (nthreads == 0) nthreads = 4;
   259→            size_t chunk = (n + nthreads - 1) / nthreads;
   260→            std::vector<std::thread> fill_threads;
   261→            for (unsigned int t = 0; t < nthreads; t++) {
   262→                size_t start = t * chunk;
   263→                size_t end = std::min(start + chunk, n);
   264→                if (start >= n) break;
   265→                fill_threads.emplace_back([&, start, end]() {
   266→                    char* ptr = buf.data() + start * row_size;
   267→                    for (size_t i = start; i < end; i++) {
   268→                        memcpy(ptr, &sorted_geo_cells[i], sizeof(uint64_t)); ptr += sizeof(uint64_t);
   269→                        memcpy(ptr, &street_offsets[i], sizeof(uint32_t)); ptr += sizeof(uint32_t);
   270→                        memcpy(ptr, &addr_offsets[i], sizeof(uint32_t)); ptr += sizeof(uint32_t);
   271→                        memcpy(ptr, &interp_offsets[i], sizeof(uint32_t)); ptr += sizeof(uint32_t);
   272→                    }
   273→                });
   274→            }
   275→            for (auto& t : fill_threads) t.join();
   276→
   277→            std::ofstream f(output_dir + "/geo_cells.bin", std::ios::binary);
   278→            f.write(buf.data(), buf.size());
   279→        }
   280→
   281→        std::cerr << "geo index: " << sorted_geo_cells.size() << " cells ("
   282→                  << data.ways.size() << " ways, " << data.addr_points.size() << " addrs, "
   283→                  << data.interp_ways.size() << " interps)" << std::endl;
   284→    }
   285→
   286→    log_phase("  Write: geo_cells.bin", _wt);
   287→    auto admin_future = std::async(std::launch::async, [&] {
   288→        write_cell_index(output_dir + "/admin_cells.bin", output_dir + "/admin_entries.bin", data.cell_to_admin);
   289→        std::cerr << "admin index: " << data.cell_to_admin.size() << " cells, " << data.admin_polygons.size() << " polygons" << std::endl;
   290→    });
   291→
   292→    std::vector<std::future<void>> write_futures;
   293→    if (write_streets) {
   294→        write_futures.push_back(std::async(std::launch::async, [&] {
   295→            std::ofstream f(output_dir + "/street_ways.bin", std::ios::binary);
   296→            f.write(reinterpret_cast<const char*>(data.ways.data()), data.ways.size() * sizeof(WayHeader));
   297→        }));
   298→        write_futures.push_back(std::async(std::launch::async, [&] {
   299→            std::ofstream f(output_dir + "/street_nodes.bin", std::ios::binary);
   300→            f.write(reinterpret_cast<const char*>(data.street_nodes.data()), data.street_nodes.size() * sizeof(NodeCoord));
   301→        }));
   302→        if (write_addresses) {
   303→            write_futures.push_back(std::async(std::launch::async, [&] {
   304→                std::ofstream f(output_dir + "/addr_points.bin", std::ios::binary);
   305→                f.write(reinterpret_cast<const char*>(data.addr_points.data()), data.addr_points.size() * sizeof(AddrPoint));
   306→            }));
   307→            write_futures.push_back(std::async(std::launch::async, [&] {
   308→                std::ofstream f(output_dir + "/interp_ways.bin", std::ios::binary);
   309→                f.write(reinterpret_cast<const char*>(data.interp_ways.data()), data.interp_ways.size() * sizeof(InterpWay));
   310→            }));
   311→            write_futures.push_back(std::async(std::launch::async, [&] {
   312→                std::ofstream f(output_dir + "/interp_nodes.bin", std::ios::binary);
   313→                f.write(reinterpret_cast<const char*>(data.interp_nodes.data()), data.interp_nodes.size() * sizeof(NodeCoord));
   314→            }));
   315→        }
   316→    }
   317→    // If not writing all data types, compact string pool and remap references
   318→    // before writing admin_polygons and strings.bin.
   319→    std::vector<AdminPolygon> compact_admin;
   320→    std::vector<char> compact_strings;
   321→    const bool need_compact = (!write_streets || !write_addresses);
   322→
   323→    if (need_compact) {
   324→        // Collect referenced string offsets
   325→        std::unordered_set<uint32_t> used_offsets;
   326→        if (write_streets) {
   327→            for (const auto& w : data.ways) used_offsets.insert(w.name_id);
   328→            if (write_addresses) {
   329→                for (const auto& a : data.addr_points) {
   330→                    used_offsets.insert(a.housenumber_id);
   331→                    used_offsets.insert(a.street_id);
   332→                }
   333→                for (const auto& iw : data.interp_ways) used_offsets.insert(iw.street_id);
   334→            }
   335→        }
   336→        for (const auto& ap : data.admin_polygons) used_offsets.insert(ap.name_id);
   337→
   338→        // Build compact pool and remap
   339→        const auto& old_sp = data.string_pool.data();
   340→        std::vector<uint32_t> sorted_offs(used_offsets.begin(), used_offsets.end());
   341→        std::sort(sorted_offs.begin(), sorted_offs.end());
   342→        std::unordered_map<uint32_t, uint32_t> remap;
   343→        compact_strings.reserve(used_offsets.size() * 16);
   344→        for (uint32_t off : sorted_offs) {
   345→            remap[off] = static_cast<uint32_t>(compact_strings.size());
   346→            size_t len = std::strlen(old_sp.data() + off);
   347→            compact_strings.insert(compact_strings.end(), old_sp.data() + off,
   348→                old_sp.data() + off + len + 1);
   349→        }
   350→
   351→        // Remap admin polygon name_ids
   352→        compact_admin = data.admin_polygons;
   353→        for (auto& ap : compact_admin) ap.name_id = remap[ap.name_id];
   354→
   355→        // Remap street/addr/interp if applicable (for no-addresses mode)
   356→        // These are written from data directly, so we'd need copies too.
   357→        // For simplicity, only compact when we have fewer types.
   358→    }
   359→
   360→    const auto& admin_to_write = need_compact ? compact_admin : data.admin_polygons;
   361→    write_futures.push_back(std::async(std::launch::async, [&] {
   362→        std::ofstream f(output_dir + "/admin_polygons.bin", std::ios::binary);
   363→        f.write(reinterpret_cast<const char*>(admin_to_write.data()), admin_to_write.size() * sizeof(AdminPolygon));
   364→    }));
   365→    write_futures.push_back(std::async(std::launch::async, [&] {
   366→        std::ofstream f(output_dir + "/admin_vertices.bin", std::ios::binary);
   367→        f.write(reinterpret_cast<const char*>(data.admin_vertices.data()), data.admin_vertices.size() * sizeof(NodeCoord));
   368→    }));
   369→    write_futures.push_back(std::async(std::launch::async, [&] {
   370→        if (need_compact) {
   371→            std::ofstream f(output_dir + "/strings.bin", std::ios::binary);
   372→            f.write(compact_strings.data(), compact_strings.size());
   373→            std::cerr << "strings.bin: " << compact_strings.size() << " bytes (compacted from "
   374→                      << data.string_pool.data().size() << ")" << std::endl;
   375→        } else {
   376→            std::ofstream f(output_dir + "/strings.bin", std::ios::binary);
   377→            f.write(data.string_pool.data().data(), data.string_pool.data().size());
   378→            std::cerr << "strings.bin: " << data.string_pool.data().size() << " bytes" << std::endl;
   379→        }
   380→    }));
   381→
   382→    log_phase("  Write: parallel data files launched", _wt);
   383→    admin_future.get();
   384→    for (auto& f : write_futures) f.get();
   385→}
   386→
   387→void write_quality_variant(const ParsedData& data, const std::string& source_dir,
   388→                           const std::string& output_dir, double epsilon_scale) {
   389→    ensure_dir(output_dir);
   390→
   391→    // Re-simplify admin polygons at the given epsilon scale
   392→    std::vector<AdminPolygon> new_polys;
   393→    std::vector<NodeCoord> new_verts;
   394→    new_polys.reserve(data.admin_polygons.size());
   395→
   396→    // Parallel simplification
   397→    struct SimplifiedPoly {
   398→        std::vector<std::pair<double,double>> verts;
   399→    };
   400→    std::vector<SimplifiedPoly> simplified(data.admin_polygons.size());
   401→
   402→    {
   403→        std::atomic<size_t> idx{0};
   404→        unsigned nthreads = std::thread::hardware_concurrency();
   405→        if (nthreads == 0) nthreads = 4;
   406→        std::vector<std::thread> workers;
   407→        for (unsigned t = 0; t < nthreads; t++) {
   408→            workers.emplace_back([&]() {
   409→                while (true) {
   410→                    size_t i = idx.fetch_add(1);
   411→                    if (i >= data.admin_polygons.size()) break;
   412→                    const auto& ap = data.admin_polygons[i];
   413→
   414→                    // Extract original vertices
   415→                    std::vector<std::pair<double,double>> pts;
   416→                    pts.reserve(ap.vertex_count);
   417→                    for (uint32_t j = 0; j < ap.vertex_count; j++) {
   418→                        const auto& v = data.admin_vertices[ap.vertex_offset + j];
   419→                        pts.emplace_back(v.lat, v.lng);
   420→                    }
   421→
   422→                    if (epsilon_scale > 0) {
   423→                        double eps_m = admin_epsilon_meters(ap.admin_level) * epsilon_scale;
   424→                        double lat = pts.empty() ? 0.0 : pts[0].first;
   425→                        double eps_deg = meters_to_degrees(eps_m, lat);
   426→                        simplified[i].verts = simplify_polygon_epsilon(pts, eps_deg);
   427→                    } else {
   428→                        simplified[i].verts = std::move(pts);
   429→                    }
   430→                }
   431→            });
   432→        }
   433→        for (auto& w : workers) w.join();
   434→    }
   435→
   436→    // Sequential: build new polygon and vertex arrays
   437→    for (size_t i = 0; i < data.admin_polygons.size(); i++) {
   438→        auto& sv = simplified[i].verts;
   439→        if (sv.size() < 3) continue;
   440→
   441→        AdminPolygon np = data.admin_polygons[i];
   442→        np.vertex_offset = static_cast<uint32_t>(new_verts.size());
   443→        np.vertex_count = static_cast<uint32_t>(sv.size());
   444→        np.area = polygon_area(sv);
   445→
   446→        for (const auto& [lat, lng] : sv) {
   447→            new_verts.push_back({static_cast<float>(lat), static_cast<float>(lng)});
   448→        }
   449→        new_polys.push_back(np);
   450→    }
   451→
   452→    std::cerr << "Quality " << epsilon_scale << "x: " << new_polys.size()
   453→              << " polygons, " << new_verts.size() << " vertices ("
   454→              << new_verts.size() * 8 / 1024 / 1024 << " MiB)" << std::endl;
   455→
   456→    // Write admin files
   457→    {
   458→        std::ofstream f(output_dir + "/admin_polygons.bin", std::ios::binary);
   459→        f.write(reinterpret_cast<const char*>(new_polys.data()), new_polys.size() * sizeof(AdminPolygon));
   460→    }
   461→    {
   462→        std::ofstream f(output_dir + "/admin_vertices.bin", std::ios::binary);
   463→        f.write(reinterpret_cast<const char*>(new_verts.data()), new_verts.size() * sizeof(NodeCoord));
   464→    }
   465→
   466→    // Quality directories only contain the two files that change.
   467→    // Shared files (admin_cells.bin, admin_entries.bin, strings.bin)
   468→    // stay in the parent directory.
   469→}
   470→


     1→#pragma once
     2→
     3→#include <cstdint>
     4→#include <vector>
     5→
     6→// --- Binary format structs (must match server's index reader) ---
     7→
     8→struct WayHeader {
     9→    uint32_t node_offset;
    10→    uint8_t node_count;
    11→    uint32_t name_id;
    12→};
    13→
    14→struct AddrPoint {
    15→    float lat;
    16→    float lng;
    17→    uint32_t housenumber_id;
    18→    uint32_t street_id;
    19→};
    20→
    21→struct InterpWay {
    22→    uint32_t node_offset;
    23→    uint8_t node_count;
    24→    uint32_t street_id;
    25→    uint32_t start_number;
    26→    uint32_t end_number;
    27→    uint8_t interpolation;
    28→};
    29→
    30→struct AdminPolygon {
    31→    uint32_t vertex_offset;
    32→    uint32_t vertex_count;
    33→    uint32_t name_id;
    34→    uint8_t admin_level;
    35→    float area;
    36→    uint16_t country_code;
    37→};
    38→
    39→struct NodeCoord {
    40→    float lat;
    41→    float lng;
    42→};
    43→
    44→// Sorted cell-item pair for direct entry writing (avoids hash map)
    45→struct CellItemPair {
    46→    uint64_t cell_id;
    47→    uint32_t item_id;
    48→};
    49→
    50→// --- Constants ---
    51→
    52→static const uint32_t INTERIOR_FLAG = 0x80000000u;
    53→static const uint32_t ID_MASK       = 0x7FFFFFFFu;
    54→static const uint32_t NO_DATA       = 0xFFFFFFFFu;
    55→
    56→// Simplification mode
    57→enum class SimplifyMode { MaxVertices, ErrorBounded };
    58→
    59→// Processing limits
    60→static constexpr size_t MAX_BLOCK_QUEUE         = 64;    // producer-consumer queue depth
    61→static constexpr int    MAX_NODE_COUNT          = 255;   // uint8_t node_count
    62→static constexpr int    MAX_VERTEX_COUNT        = 0x7FFFFFFF; // uint32_t vertex_count
    63→static constexpr int    MAX_S2_CELLS_PER_POLY   = 200;   // S2RegionCoverer max_cells
    64→static constexpr int    BACKTRACK_CALL_BUDGET   = 100000; // per-ring backtracking limit
    65→static constexpr int    BACKTRACK_TOTAL_BUDGET  = 500000; // per-relation backtracking limit
    66→static constexpr int    BACKTRACK_MAX_DEPTH     = 200;    // recursion depth limit
    67→static constexpr size_t MAX_SUBWAYS_FOR_RETRY   = 30;     // only retry small relations
    68→static constexpr size_t MAX_NODE_ID_DEFAULT     = 15000000000ULL; // dense index capacity
    69→
    70→// --- Index mode ---
    71→
    72→enum class IndexMode { Full, NoAddresses, AdminOnly };
    73→
    74→// --- Deferred S2 work items ---
    75→
    76→struct DeferredWay {
    77→    uint32_t way_id;
    78→    uint32_t node_offset;
    79→    uint8_t node_count;
    80→};
    81→
    82→struct DeferredInterp {
    83→    uint32_t interp_id;
    84→    uint32_t node_offset;
    85→    uint8_t node_count;
    86→};
    87→
    88→// Collected relation data for parallel admin assembly
    89→struct CollectedRelation {
    90→    int64_t id;
    91→    uint8_t admin_level;
    92→    std::string name;
    93→    std::string country_code;
    94→    bool is_postal;
    95→    std::vector<std::pair<int64_t, std::string>> members; // (way_id, role)
    96→};
    97→


find /root/traccar-geocoder/src -type f \( -name "*.cpp" -o -name "*.h" \) | head -20


find: '/root/traccar-geocoder/src': No such file or directory


find /root/traccar-geocoder -type d -name "server" -o -name "runtime" -o -name "geocoder"


total 35
drwxr-xr-x 3 root root     5 Mar 21 11:08 .
drwxr-xr-x 7 root root    14 Mar 21 11:08 ..
-rw-r--r-- 1 root root 48488 Mar 21 11:08 Cargo.lock
-rw-r--r-- 1 root root   414 Mar 21 11:08 Cargo.toml
drwxr-xr-x 3 root root     5 Mar 23 23:04 src


find /root/traccar-geocoder/server/src -type f -name "*.rs" | head -20


/root/traccar-geocoder/server/src/auth.rs
/root/traccar-geocoder/server/src/main.rs


Error: EISDIR: illegal operation on a directory, read '/root/traccar-geocoder/server/src'


Error: File content (10030 tokens) exceeds maximum allowed tokens (10000). Use offset and limit parameters to read specific portions of the file, or search for specific content instead of reading the whole file.


     1→mod auth;
     2→
     3→use axum::extract::Query;
     4→use axum::http::StatusCode;
     5→use axum::response::{IntoResponse, Response};
     6→use axum::routing::get;
     7→use axum::Router;
     8→use memmap2::Mmap;
     9→use s2::cellid::CellID;
    10→use s2::latlng::LatLng;
    11→use serde::{Deserialize, Serialize};
    12→use std::borrow::Cow;
    13→use std::fs::File;
    14→use std::sync::{Arc, RwLock};
    15→
    16→// --- S2 helpers ---
    17→
    18→const DEFAULT_STREET_CELL_LEVEL: u64 = 17;
    19→const DEFAULT_ADMIN_CELL_LEVEL: u64 = 10;
    20→const DEFAULT_SEARCH_DISTANCE: f64 = 75.0;
    21→
    22→fn cell_id_at_level(lat: f64, lng: f64, level: u64) -> u64 {
    23→    let ll = LatLng::from_degrees(lat, lng);
    24→    CellID::from(ll).parent(level).0
    25→}
    26→
    27→fn cell_neighbors_at_level(cell_id: u64, level: u64) -> Vec<u64> {
    28→    let cell = CellID(cell_id);
    29→    cell.all_neighbors(level).into_iter().map(|c| c.0).collect()
    30→}
    31→
    32→// --- Binary format structs (must match C++ build pipeline) ---
    33→
    34→#[repr(C)]
    35→#[derive(Clone, Copy)]
    36→struct WayHeader {
    37→    node_offset: u32,
    38→    node_count: u8,
    39→    name_id: u32,
    40→}
    41→
    42→#[repr(C)]
    43→#[derive(Clone, Copy)]
    44→struct AddrPoint {
    45→    lat: f32,
    46→    lng: f32,
    47→    housenumber_id: u32,
    48→    street_id: u32,
    49→}
    50→
    51→#[repr(C)]
    52→#[derive(Clone, Copy)]
    53→struct InterpWay {
    54→    node_offset: u32,
    55→    node_count: u8,
    56→    street_id: u32,
    57→    start_number: u32,
    58→    end_number: u32,
    59→    interpolation: u8,
    60→}
    61→
    62→#[repr(C)]
    63→#[derive(Clone, Copy)]
    64→struct AdminPolygon {
    65→    vertex_offset: u32,
    66→    vertex_count: u32,
    67→    name_id: u32,
    68→    admin_level: u8,
    69→    area: f32,
    70→    country_code: u16,
    71→}
    72→
    73→#[repr(C)]
    74→#[derive(Clone, Copy)]
    75→struct NodeCoord {
    76→    lat: f32,
    77→    lng: f32,
    78→}
    79→
    80→// --- Index data ---
    81→
    82→struct Index {
    83→    geo_cells: Option<Mmap>,
    84→    street_entries: Option<Mmap>,
    85→    street_ways: Option<Mmap>,
    86→    street_nodes: Option<Mmap>,
    87→    addr_entries: Option<Mmap>,
    88→    addr_points: Option<Mmap>,
    89→    interp_entries: Option<Mmap>,
    90→    interp_ways: Option<Mmap>,
    91→    interp_nodes: Option<Mmap>,
    92→    admin_cells: Mmap,
    93→    admin_entries: Mmap,
    94→    admin_polygons: Mmap,
    95→    admin_vertices: Mmap,
    96→    strings: Mmap,
    97→    street_cell_level: u64,
    98→    admin_cell_level: u64,
    99→    max_distance_sq: f64,
   100→}


   100→}
   101→
   102→const NO_DATA: u32 = 0xFFFFFFFF;
   103→
   104→struct GeoCellOffsets {
   105→    street: u32,
   106→    addr: u32,
   107→    interp: u32,
   108→}
   109→
   110→fn mmap_file(path: &str) -> Result<Mmap, String> {
   111→    let file = File::open(path).map_err(|e| format!("Failed to open {}: {}", path, e))?;
   112→    unsafe { Mmap::map(&file).map_err(|e| format!("Failed to mmap {}: {}", path, e)) }
   113→}
   114→
   115→fn mmap_file_optional(path: &str) -> Option<Mmap> {
   116→    let file = File::open(path).ok()?;
   117→    unsafe { Mmap::map(&file).ok() }
   118→}
   119→
   120→impl Index {
   121→    fn load(dir: &str, street_cell_level: u64, admin_cell_level: u64, search_distance: f64) -> Result<Self, String> {
   122→        let meters_to_rad = search_distance / 111_320.0;
   123→        let max_distance_sq = meters_to_rad * meters_to_rad;
   124→
   125→        let geo_cells = mmap_file_optional(&format!("{}/geo_cells.bin", dir));
   126→        let has_geo = geo_cells.is_some();
   127→
   128→        let required_geo = |name: &str| -> Result<Option<Mmap>, String> {
   129→            let path = format!("{}/{}", dir, name);
   130→            let mmap = mmap_file_optional(&path);
   131→            if has_geo && mmap.is_none() {
   132→                return Err(format!("Partial geo index: {} is missing", name));
   133→            }
   134→            Ok(mmap)
   135→        };
   136→
   137→        Ok(Index {
   138→            geo_cells,
   139→            street_entries: required_geo("street_entries.bin")?,
   140→            street_ways: required_geo("street_ways.bin")?,
   141→            street_nodes: required_geo("street_nodes.bin")?,
   142→            addr_entries: mmap_file_optional(&format!("{}/addr_entries.bin", dir)),
   143→            addr_points: mmap_file_optional(&format!("{}/addr_points.bin", dir)),
   144→            interp_entries: mmap_file_optional(&format!("{}/interp_entries.bin", dir)),
   145→            interp_ways: mmap_file_optional(&format!("{}/interp_ways.bin", dir)),
   146→            interp_nodes: mmap_file_optional(&format!("{}/interp_nodes.bin", dir)),
   147→            admin_cells: mmap_file(&format!("{}/admin_cells.bin", dir))?,
   148→            admin_entries: mmap_file(&format!("{}/admin_entries.bin", dir))?,
   149→            admin_polygons: mmap_file(&format!("{}/admin_polygons.bin", dir))?,
   150→            admin_vertices: mmap_file(&format!("{}/admin_vertices.bin", dir))?,
   151→            strings: mmap_file(&format!("{}/strings.bin", dir))?,
   152→            street_cell_level,
   153→            admin_cell_level,
   154→            max_distance_sq,
   155→        })
   156→    }
   157→
   158→    fn get_string(&self, offset: u32) -> &str {
   159→        let bytes = &self.strings[offset as usize..];
   160→        let end = bytes.iter().position(|&b| b == 0).unwrap_or(bytes.len());
   161→        std::str::from_utf8(&bytes[..end]).unwrap_or("")
   162→    }
   163→
   164→    fn read_u16(data: &[u8], offset: usize) -> u16 {
   165→        u16::from_le_bytes([data[offset], data[offset + 1]])
   166→    }
   167→
   168→    fn read_u32(data: &[u8], offset: usize) -> u32 {
   169→        u32::from_le_bytes(data[offset..offset + 4].try_into().unwrap())
   170→    }
   171→
   172→    fn read_u64(data: &[u8], offset: usize) -> u64 {
   173→        u64::from_le_bytes(data[offset..offset + 8].try_into().unwrap())
   174→    }
   175→
   176→    // Iterate entry IDs inline from entries file at given offset
   177→    fn for_each_entry(entries: &[u8], offset: u32, mut f: impl FnMut(u32)) {
   178→        if offset == NO_DATA { return; }
   179→        let offset = offset as usize;
   180→        if offset + 2 > entries.len() { return; }
   181→
   182→        let id_count = Self::read_u16(entries, offset) as usize;
   183→        let data_start = offset + 2;
   184→        if data_start + id_count * 4 > entries.len() { return; }
   185→
   186→        for i in 0..id_count {
   187→            f(Self::read_u32(entries, data_start + i * 4));
   188→        }
   189→    }
   190→
   191→    // Binary search geo cell index: 20 bytes per entry (u64 cell_id + u32 street + u32 addr + u32 interp)
   192→    fn lookup_geo_cell(cells: &[u8], cell_id: u64) -> GeoCellOffsets {
   193→        let entry_size: usize = 20;
   194→        let count = cells.len() / entry_size;
   195→        let empty = GeoCellOffsets { street: NO_DATA, addr: NO_DATA, interp: NO_DATA };
   196→        if count == 0 { return empty; }
   197→
   198→        let mut lo = 0usize;
   199→        let mut hi = count;
   200→        while lo < hi {
   201→            let mid = lo + (hi - lo) / 2;
   202→            let mid_id = Self::read_u64(cells, mid * entry_size);
   203→            if mid_id == cell_id {
   204→                return GeoCellOffsets {
   205→                    street: Self::read_u32(cells, mid * entry_size + 8),
   206→                    addr: Self::read_u32(cells, mid * entry_size + 12),
   207→                    interp: Self::read_u32(cells, mid * entry_size + 16),
   208→                };
   209→            } else if mid_id < cell_id {
   210→                lo = mid + 1;
   211→            } else {
   212→                hi = mid;
   213→            }
   214→        }
   215→        empty
   216→    }
   217→
   218→    // Binary search admin cell index: 12 bytes per entry (u64 cell_id + u32 offset)
   219→    fn lookup_admin_cell(cells: &[u8], cell_id: u64) -> u32 {
   220→        let entry_size: usize = 12;
   221→        let count = cells.len() / entry_size;
   222→        if count == 0 { return NO_DATA; }
   223→
   224→        let mut lo = 0usize;
   225→        let mut hi = count;
   226→        while lo < hi {
   227→            let mid = lo + (hi - lo) / 2;
   228→            let mid_id = Self::read_u64(cells, mid * entry_size);
   229→            if mid_id == cell_id {
   230→                return Self::read_u32(cells, mid * entry_size + 8);
   231→            } else if mid_id < cell_id {
   232→                lo = mid + 1;
   233→            } else {
   234→                hi = mid;
   235→            }
   236→        }
   237→        NO_DATA
   238→    }
   239→
   240→    // --- Geo lookup (streets, addresses, interpolation from merged index) ---
   241→
   242→    fn query_geo(&self, lat: f64, lng: f64) -> (Option<(f64, &AddrPoint)>, Option<(f64, &str, u32)>, Option<(f64, &WayHeader)>) {
   243→        let geo_cells = match &self.geo_cells {
   244→            Some(gc) => gc,
   245→            None => return (None, None, None),
   246→        };
   247→        let street_entries = self.street_entries.as_ref().unwrap();
   248→        let street_ways_mmap = self.street_ways.as_ref().unwrap();
   249→        let street_nodes_mmap = self.street_nodes.as_ref().unwrap();
   250→        let cell = cell_id_at_level(lat, lng, self.street_cell_level);
   251→        let neighbors = cell_neighbors_at_level(cell, self.street_cell_level);
   252→
   253→        let empty_addr: &[AddrPoint] = &[];
   254→        let all_points: &[AddrPoint] = if let Some(ref m) = self.addr_points {
   255→            unsafe {
   256→                std::slice::from_raw_parts(
   257→                    m.as_ptr() as *const AddrPoint,
   258→                    m.len() / std::mem::size_of::<AddrPoint>(),
   259→                )
   260→            }
   261→        } else {
   262→            empty_addr
   263→        };
   264→        let all_ways: &[WayHeader] = unsafe {
   265→            std::slice::from_raw_parts(
   266→                street_ways_mmap.as_ptr() as *const WayHeader,
   267→                street_ways_mmap.len() / std::mem::size_of::<WayHeader>(),
   268→            )
   269→        };
   270→        let all_street_nodes: &[NodeCoord] = unsafe {
   271→            std::slice::from_raw_parts(
   272→                street_nodes_mmap.as_ptr() as *const NodeCoord,
   273→                street_nodes_mmap.len() / std::mem::size_of::<NodeCoord>(),
   274→            )
   275→        };
   276→        let empty_interp: &[InterpWay] = &[];
   277→        let all_interps: &[InterpWay] = if let Some(ref m) = self.interp_ways {
   278→            unsafe {
   279→                std::slice::from_raw_parts(
   280→                    m.as_ptr() as *const InterpWay,
   281→                    m.len() / std::mem::size_of::<InterpWay>(),
   282→                )
   283→            }
   284→        } else {
   285→            empty_interp
   286→        };
   287→        let empty_interp_nodes: &[NodeCoord] = &[];
   288→        let all_interp_nodes: &[NodeCoord] = if let Some(ref m) = self.interp_nodes {
   289→            unsafe {
   290→                std::slice::from_raw_parts(
   291→                    m.as_ptr() as *const NodeCoord,
   292→                    m.len() / std::mem::size_of::<NodeCoord>(),
   293→                )
   294→            }
   295→        } else {
   296→            empty_interp_nodes
   297→        };
   298→
   299→        let cos_lat = lat.to_radians().cos();
   300→
   301→        let mut best_addr_dist = f64::MAX;
   302→        let mut best_addr: Option<&AddrPoint> = None;
   303→        let mut best_street_dist = f64::MAX;
   304→        let mut best_street: Option<&WayHeader> = None;
   305→        let mut best_interp_dist = f64::MAX;
   306→        let mut best_interp: Option<&InterpWay> = None;
   307→        let mut best_interp_t: f64 = 0.0;
   308→
   309→        // Fixed-size hash set on stack to skip duplicate street IDs across cells
   310→        let mut seen_streets: [u32; 64] = [u32::MAX; 64];
   311→
   312→        for c in std::iter::once(cell).chain(neighbors.into_iter()) {
   313→            let offsets = Self::lookup_geo_cell(geo_cells, c);
   314→
   315→            // Addresses
   316→            if let Some(ref addr_entries) = self.addr_entries {
   317→                Self::for_each_entry(addr_entries, offsets.addr, |id| {
   318→                    let point = &all_points[id as usize];
   319→                    let dlat = (point.lat as f64 - lat).to_radians();
   320→                    let dlng = (point.lng as f64 - lng).to_radians();
   321→                    let dist = dist_sq(dlat, dlng, cos_lat);
   322→                    if dist < best_addr_dist {
   323→                        best_addr_dist = dist;
   324→                        best_addr = Some(point);
   325→                    }
   326→                });
   327→            }
   328→
   329→            // Streets
   330→            Self::for_each_entry(street_entries, offsets.street, |id| {
   331→                let slot = (id as usize) & 0x3F;
   332→                if seen_streets[slot] == id { return; }
   333→                seen_streets[slot] = id;
   334→
   335→                let way = &all_ways[id as usize];
   336→                let offset = way.node_offset as usize;
   337→                let count = way.node_count as usize;
   338→                let nodes = &all_street_nodes[offset..offset + count];
   339→
   340→                for i in 0..nodes.len() - 1 {
   341→                    let dist = point_to_segment_distance(
   342→                        lat, lng,
   343→                        nodes[i].lat as f64, nodes[i].lng as f64,
   344→                        nodes[i + 1].lat as f64, nodes[i + 1].lng as f64,
   345→                        cos_lat,
   346→                    );
   347→                    if dist < best_street_dist {
   348→                        best_street_dist = dist;
   349→                        best_street = Some(way);
   350→                    }
   351→                }
   352→            });
   353→
   354→            // Interpolation
   355→            if let Some(ref interp_entries) = self.interp_entries {
   356→                Self::for_each_entry(interp_entries, offsets.interp, |id| {
   357→                    let iw = &all_interps[id as usize];
   358→                    if iw.start_number == 0 || iw.end_number == 0 { return; }
   359→
   360→                    let offset = iw.node_offset as usize;
   361→                    let count = iw.node_count as usize;
   362→                    let nodes = &all_interp_nodes[offset..offset + count];
   363→
   364→                    let mut total_len: f64 = 0.0;
   365→                    for i in 0..nodes.len() - 1 {
   366→                        let dlat = (nodes[i + 1].lat as f64 - nodes[i].lat as f64).to_radians();
   367→                        let dlng = (nodes[i + 1].lng as f64 - nodes[i].lng as f64).to_radians();
   368→                        total_len += dist_sq(dlat, dlng, cos_lat);
   369→                    }
   370→                    if total_len == 0.0 { return; }
   371→
   372→                    let mut best_seg_dist = f64::MAX;
   373→                    let mut best_seg_t: f64 = 0.0;
   374→                    let mut prev_accumulated: f64 = 0.0;
   375→
   376→                    for i in 0..nodes.len() - 1 {
   377→                        let dlat = (nodes[i + 1].lat as f64 - nodes[i].lat as f64).to_radians();
   378→                        let dlng = (nodes[i + 1].lng as f64 - nodes[i].lng as f64).to_radians();
   379→                        let seg_len = dist_sq(dlat, dlng, cos_lat);
   380→                        let (dist, seg_t) = point_to_segment_with_t(
   381→                            lat, lng,
   382→                            nodes[i].lat as f64, nodes[i].lng as f64,
   383→                            nodes[i + 1].lat as f64, nodes[i + 1].lng as f64,
   384→                            cos_lat,
   385→                        );
   386→                        if dist < best_seg_dist {
   387→                            best_seg_dist = dist;
   388→                            best_seg_t = (prev_accumulated + seg_t * seg_len) / total_len;
   389→                        }
   390→                        prev_accumulated += seg_len;
   391→                    }
   392→
   393→                    if best_seg_dist < best_interp_dist {
   394→                        best_interp_dist = best_seg_dist;
   395→                        best_interp = Some(iw);
   396→                        best_interp_t = best_seg_t;
   397→                    }
   398→                });
   399→            }


   400→        }
   401→
   402→        let addr_result = best_addr.map(|p| (best_addr_dist, p));
   403→        let street_result = best_street.map(|w| (best_street_dist, w));
   404→        let interp_result = best_interp.map(|iw| {
   405→            let start = iw.start_number as f64;
   406→            let end = iw.end_number as f64;
   407→            let raw = start + best_interp_t * (end - start);
   408→
   409→            let step: u32 = match iw.interpolation {
   410→                1 | 2 => 2,
   411→                _ => 1,
   412→            };
   413→
   414→            let number = if step == 2 {
   415→                let base = iw.start_number;
   416→                let offset = ((raw - base as f64) / step as f64).round() as u32 * step;
   417→                base + offset
   418→            } else {
   419→                raw.round() as u32
   420→            };
   421→
   422→            (best_interp_dist, self.get_string(iw.street_id), number)
   423→        });
   424→
   425→        (addr_result, interp_result, street_result)
   426→    }
   427→
   428→    // --- Admin boundary lookup (point-in-polygon) ---
   429→
   430→    fn find_admin(&self, lat: f64, lng: f64) -> AdminResult<'_> {
   431→        let cell = cell_id_at_level(lat, lng, self.admin_cell_level);
   432→        let neighbors = cell_neighbors_at_level(cell, self.admin_cell_level);
   433→
   434→        let all_polygons: &[AdminPolygon] = unsafe {
   435→            std::slice::from_raw_parts(
   436→                self.admin_polygons.as_ptr() as *const AdminPolygon,
   437→                self.admin_polygons.len() / std::mem::size_of::<AdminPolygon>(),
   438→            )
   439→        };
   440→        let all_vertices: &[NodeCoord] = unsafe {
   441→            std::slice::from_raw_parts(
   442→                self.admin_vertices.as_ptr() as *const NodeCoord,
   443→                self.admin_vertices.len() / std::mem::size_of::<NodeCoord>(),
   444→            )
   445→        };
   446→
   447→        // For each admin level, find the smallest-area polygon containing the point
   448→        let mut best_by_level: [Option<(f32, &AdminPolygon)>; 12] = [None; 12];
   449→
   450→        const INTERIOR_FLAG: u32 = 0x80000000;
   451→        const ID_MASK: u32 = 0x7FFFFFFF;
   452→
   453→        for c in std::iter::once(cell).chain(neighbors.into_iter()) {
   454→            Self::for_each_entry(&self.admin_entries, Self::lookup_admin_cell(&self.admin_cells, c), |id| {
   455→                let is_interior = (id & INTERIOR_FLAG) != 0;
   456→                let poly_id = (id & ID_MASK) as usize;
   457→                let poly = &all_polygons[poly_id];
   458→                let level = poly.admin_level as usize;
   459→                if level >= 12 { return; }
   460→
   461→                // Skip if we already have a smaller polygon at this level
   462→                if let Some((best_area, _)) = best_by_level[level] {
   463→                    if poly.area >= best_area { return; }
   464→                }
   465→
   466→                // Interior cells skip point-in-polygon test
   467→                if is_interior || point_in_polygon(lat as f32, lng as f32, {
   468→                    let offset = poly.vertex_offset as usize;
   469→                    let count = poly.vertex_count as usize;
   470→                    &all_vertices[offset..offset + count]
   471→                }) {
   472→                    best_by_level[level] = Some((poly.area, poly));
   473→                }
   474→            });
   475→        }
   476→
   477→        let mut result = AdminResult::default();
   478→
   479→        for level in 0..12 {
   480→            if let Some((_, poly)) = best_by_level[level] {
   481→                let name = self.get_string(poly.name_id);
   482→                match poly.admin_level {
   483→                    2 => {
   484→                        result.country = Some(name);
   485→                        if poly.country_code != 0 {
   486→                            result.country_code = Some([
   487→                                (poly.country_code >> 8) as u8,
   488→                                (poly.country_code & 0xFF) as u8,
   489→                            ]);
   490→                        }
   491→                    }
   492→                    4 => result.state = Some(name),
   493→                    6 => result.county = Some(name),
   494→                    8 => result.city = Some(name),
   495→                    11 => result.postcode = Some(name),
   496→                    _ => {}
   497→                }
   498→            }
   499→        }
   500→
   501→        result
   502→    }
   503→
   504→    // --- Combined query ---
   505→
   506→    fn query(&self, lat: f64, lng: f64) -> Address<'_> {
   507→        let max_dist = self.max_distance_sq;
   508→
   509→        let admin = self.find_admin(lat, lng);
   510→        let (addr, interp, street) = self.query_geo(lat, lng);
   511→
   512→        // Determine house_number and road from best geo match (priority: address > interpolation > street)
   513→        let mut house_number: Option<Cow<'_, str>> = None;
   514→        let mut road: Option<&str> = None;
   515→
   516→        if let Some((dist, point)) = addr {
   517→            if dist < max_dist {
   518→                house_number = Some(Cow::Borrowed(self.get_string(point.housenumber_id)));
   519→                road = Some(self.get_string(point.street_id));
   520→            }
   521→        }
   522→        if road.is_none() {
   523→            if let Some((dist, street_name, number)) = interp {
   524→                if dist < max_dist {
   525→                    house_number = Some(Cow::Owned(number.to_string()));
   526→                    road = Some(street_name);
   527→                }
   528→            }
   529→        }
   530→        if road.is_none() {
   531→            if let Some((dist, way)) = street {
   532→                if dist < max_dist {
   533→                    road = Some(self.get_string(way.name_id));
   534→                }
   535→            }
   536→        }
   537→
   538→        if road.is_none() && admin.country.is_none() && admin.city.is_none() && admin.state.is_none() {
   539→            return Address::default();
   540→        }
   541→
   542→        let address = AddressDetails {
   543→            house_number,
   544→            road,
   545→            city: admin.city,
   546→            state: admin.state,
   547→            county: admin.county,
   548→            postcode: admin.postcode,
   549→            country: admin.country,
   550→            country_code: admin.country_code.map(|c| String::from_utf8_lossy(&c).into_owned()),
   551→        };
   552→        let display_name = format_address(&address);
   553→        Address { display_name, address }
   554→    }
   555→}
   556→
   557→// --- Geometry helpers ---
   558→
   559→fn dist_sq(dlat: f64, dlng: f64, cos_lat: f64) -> f64 {
   560→    dlat * dlat + dlng * dlng * cos_lat * cos_lat
   561→}
   562→
   563→fn point_to_segment_with_t(
   564→    px: f64, py: f64,
   565→    ax: f64, ay: f64,
   566→    bx: f64, by: f64,
   567→    cos_lat: f64,
   568→) -> (f64, f64) {
   569→    let dx = bx - ax;
   570→    let dy = by - ay;
   571→    let len_sq = dx * dx + dy * dy;
   572→
   573→    let t = if len_sq == 0.0 {
   574→        0.0
   575→    } else {
   576→        (((px - ax) * dx + (py - ay) * dy) / len_sq).clamp(0.0, 1.0)
   577→    };
   578→
   579→    let proj_x = ax + t * dx;
   580→    let proj_y = ay + t * dy;
   581→    let dlat = (px - proj_x).to_radians();
   582→    let dlng = (py - proj_y).to_radians();
   583→    (dist_sq(dlat, dlng, cos_lat), t)
   584→}
   585→
   586→fn point_to_segment_distance(
   587→    px: f64, py: f64,
   588→    ax: f64, ay: f64,
   589→    bx: f64, by: f64,
   590→    cos_lat: f64,
   591→) -> f64 {
   592→    point_to_segment_with_t(px, py, ax, ay, bx, by, cos_lat).0
   593→}
   594→
   595→// Ray casting point-in-polygon test
   596→fn point_in_polygon(lat: f32, lng: f32, vertices: &[NodeCoord]) -> bool {
   597→    let mut inside = false;
   598→    let n = vertices.len();
   599→    let mut j = n - 1;
   600→
   601→    for i in 0..n {
   602→        let vi = &vertices[i];
   603→        let vj = &vertices[j];
   604→
   605→        if ((vi.lng > lng) != (vj.lng > lng))
   606→            && (lat < (vj.lat - vi.lat) * (lng - vi.lng) / (vj.lng - vi.lng) + vi.lat)
   607→        {
   608→            inside = !inside;
   609→        }
   610→        j = i;
   611→    }
   612→
   613→    inside
   614→}
   615→
   616→// --- API types ---
   617→
   618→#[derive(Default)]
   619→struct AdminResult<'a> {
   620→    country: Option<&'a str>,
   621→    country_code: Option<[u8; 2]>,
   622→    state: Option<&'a str>,
   623→    county: Option<&'a str>,
   624→    city: Option<&'a str>,
   625→    postcode: Option<&'a str>,
   626→}
   627→
   628→#[derive(Serialize, Default)]
   629→struct AddressDetails<'a> {
   630→    #[serde(skip_serializing_if = "Option::is_none")]
   631→    house_number: Option<Cow<'a, str>>,
   632→    #[serde(skip_serializing_if = "Option::is_none")]
   633→    road: Option<&'a str>,
   634→    #[serde(skip_serializing_if = "Option::is_none")]
   635→    city: Option<&'a str>,
   636→    #[serde(skip_serializing_if = "Option::is_none")]
   637→    state: Option<&'a str>,
   638→    #[serde(skip_serializing_if = "Option::is_none")]
   639→    county: Option<&'a str>,
   640→    #[serde(skip_serializing_if = "Option::is_none")]
   641→    postcode: Option<&'a str>,
   642→    #[serde(skip_serializing_if = "Option::is_none")]
   643→    country: Option<&'a str>,
   644→    #[serde(skip_serializing_if = "Option::is_none")]
   645→    country_code: Option<String>,
   646→}
   647→
   648→#[derive(Serialize, Default)]
   649→struct Address<'a> {
   650→    #[serde(skip_serializing_if = "Option::is_none")]
   651→    display_name: Option<String>,
   652→    address: AddressDetails<'a>,
   653→}
   654→
   655→// Address formatting patterns by country code
   656→// Returns (number_after_street, postcode_before_city, include_state)
   657→fn format_rules(country_code: Option<&str>) -> (bool, bool, bool) {
   658→    match country_code {
   659→        // Number before street, postcode after city, include state
   660→        Some("US") | Some("CA") | Some("AU") | Some("NZ")
   661→        | Some("GB") | Some("IE") | Some("ZA") | Some("IN")
   662→        | Some("NG") | Some("KE") | Some("GH") | Some("PK")
   663→        | Some("PH") | Some("TH") | Some("MY") => (false, false, true),
   664→
   665→        // Number before street, postcode before city, include state
   666→        Some("JP") | Some("KR") | Some("CN") | Some("TW") => (false, true, true),
   667→
   668→        // Number after street, postcode before city, no state (most of Europe, etc.)
   669→        _ => (true, true, false),
   670→    }
   671→}
   672→
   673→fn format_address(addr: &AddressDetails<'_>) -> Option<String> {
   674→    if addr.road.is_none() && addr.city.is_none() && addr.country.is_none() {
   675→        return None;
   676→    }
   677→
   678→    let (number_after, postcode_before_city, include_state) = format_rules(addr.country_code.as_deref());
   679→    let mut parts: Vec<String> = Vec::new();
   680→
   681→    // Street + house number
   682→    if let Some(road) = addr.road {
   683→        if let Some(ref hn) = addr.house_number {
   684→            if number_after {
   685→                parts.push(format!("{} {}", road, hn));
   686→            } else {
   687→                parts.push(format!("{} {}", hn, road));
   688→            }
   689→        } else {
   690→            parts.push(road.to_string());
   691→        }
   692→    }
   693→
   694→    // City + postcode + state
   695→    if postcode_before_city {
   696→        let mut city_part = String::new();
   697→        if let Some(pc) = addr.postcode {
   698→            city_part.push_str(pc);
   699→            city_part.push(' ');


     1→#pragma once
     2→
     3→#include <algorithm>
     4→#include <chrono>
     5→#include <iostream>
     6→#include <string>
     7→#include <unordered_map>
     8→#include <vector>
     9→
    10→#include <cstdio>
    11→#include <cstring>
    12→#include <dirent.h>
    13→#include <iomanip>
    14→#include <thread>
    15→#include <unistd.h>
    16→#include <sys/stat.h>
    17→
    18→#include "types.h"
    19→#include "string_pool.h"
    20→
    21→// --- Directory creation ---
    22→
    23→inline void ensure_dir(const std::string& path) {
    24→    // Recursive mkdir — create all parent directories
    25→    for (size_t i = 1; i < path.size(); i++) {
    26→        if (path[i] == '/') {
    27→            mkdir(path.substr(0, i).c_str(), 0755);
    28→        }
    29→    }
    30→    mkdir(path.c_str(), 0755);
    31→}
    32→
    33→// --- CPU tick reading (all threads via getrusage) ---
    34→
    35→#include <sys/resource.h>
    36→
    37→struct CpuTicks {
    38→    long long process_us = 0;  // user+system microseconds (all threads)
    39→
    40→    static CpuTicks now() {
    41→        CpuTicks ct;
    42→        struct rusage ru;
    43→        if (getrusage(RUSAGE_SELF, &ru) == 0) {
    44→            ct.process_us = (long long)ru.ru_utime.tv_sec * 1000000 + ru.ru_utime.tv_usec
    45→                          + (long long)ru.ru_stime.tv_sec * 1000000 + ru.ru_stime.tv_usec;
    46→        }
    47→        return ct;
    48→    }
    49→};
    50→
    51→// --- Phase timer with CPU utilization ---
    52→
    53→inline long get_rss_mb() {
    54→    long rss_pages = 0;
    55→    FILE* f = fopen("/proc/self/statm", "r");
    56→    if (f) {
    57→        long size;
    58→        if (fscanf(f, "%ld %ld", &size, &rss_pages) != 2) rss_pages = 0;
    59→        fclose(f);
    60→    }
    61→    return rss_pages * sysconf(_SC_PAGESIZE) / (1024 * 1024);
    62→}
    63→
    64→inline void log_phase(const char* name, std::chrono::steady_clock::time_point& t,
    65→                       CpuTicks& prev_cpu) {
    66→    auto now = std::chrono::steady_clock::now();
    67→    auto ms = std::chrono::duration_cast<std::chrono::milliseconds>(now - t).count();
    68→    auto cpu_now = CpuTicks::now();
    69→    double cpu_sec = (cpu_now.process_us - prev_cpu.process_us) / 1e6;
    70→    double wall_sec = ms / 1000.0;
    71→    double cores_used = (wall_sec > 0.1) ? cpu_sec / wall_sec : 0;
    72→    unsigned ncpu = std::thread::hardware_concurrency();
    73→    int pct = (wall_sec > 0.1 && ncpu > 0) ? (int)(cores_used * 100.0 / ncpu) : 0;
    74→    long rss = get_rss_mb();
    75→    std::cerr << "  [" << ms/1000 << "." << (ms%1000)/100 << "s"
    76→              << " " << std::fixed << std::setprecision(1) << cores_used << "/" << ncpu << "cores"
    77→              << " " << pct << "%"
    78→              << " " << rss << "MiB] " << name << std::endl;
    79→    t = now;
    80→    prev_cpu = cpu_now;
    81→}
    82→
    83→// Backward compat overload (no CPU tracking)
    84→inline void log_phase(const char* name, std::chrono::steady_clock::time_point& t) {
    85→    auto ms = std::chrono::duration_cast<std::chrono::milliseconds>(
    86→        std::chrono::steady_clock::now() - t).count();
    87→    std::cerr << "  [" << ms/1000 << "." << (ms%1000)/100 << "s] " << name << std::endl;
    88→    t = std::chrono::steady_clock::now();
    89→}
    90→
    91→// --- Parsed data container ---
    92→
    93→struct ParsedData {
    94→    StringPool string_pool;
    95→    std::vector<WayHeader> ways;
    96→    std::vector<NodeCoord> street_nodes;
    97→    std::unordered_map<uint64_t, std::vector<uint32_t>> cell_to_ways;
    98→    std::vector<AddrPoint> addr_points;
    99→    std::unordered_map<uint64_t, std::vector<uint32_t>> cell_to_addrs;
   100→    std::vector<InterpWay> interp_ways;
   101→    std::vector<NodeCoord> interp_nodes;
   102→    std::unordered_map<uint64_t, std::vector<uint32_t>> cell_to_interps;
   103→    std::vector<AdminPolygon> admin_polygons;
   104→    std::vector<NodeCoord> admin_vertices;
   105→    std::unordered_map<uint64_t, std::vector<uint32_t>> cell_to_admin;
   106→
   107→    // Deferred work for parallel S2 computation (ways + interps)
   108→    std::vector<DeferredWay> deferred_ways;
   109→    std::vector<DeferredInterp> deferred_interps;
   110→
   111→    // Sorted (cell_id, item_id) pairs — kept for direct entry writing
   112→    std::vector<CellItemPair> sorted_way_cells;
   113→    std::vector<CellItemPair> sorted_addr_cells;
   114→    std::vector<CellItemPair> sorted_interp_cells;
   115→
   116→    // Collected data for parallel admin assembly
   117→    std::vector<CollectedRelation> collected_relations;
   118→    struct WayGeometry {
   119→        std::vector<std::pair<double,double>> coords;
   120→        int64_t first_node_id;
   121→        int64_t last_node_id;
   122→    };
   123→    std::unordered_map<int64_t, WayGeometry> way_geometries;
   124→};
   125→
   126→// --- Deduplicate IDs per cell ---
   127→
   128→template<typename Map>
   129→inline void deduplicate(Map& cell_map) {
   130→    for (auto& [cell_id, ids] : cell_map) {
   131→        std::sort(ids.begin(), ids.end());
   132→        ids.erase(std::unique(ids.begin(), ids.end()), ids.end());
   133→    }
   134→}
   135→


     1→#pragma once
     2→
     3→#include <cstdint>
     4→#include <string>
     5→#include <unordered_map>
     6→#include <vector>
     7→
     8→class StringPool {
     9→public:
    10→    uint32_t intern(const std::string& s) {
    11→        auto it = index_.find(s);
    12→        if (it != index_.end()) {
    13→            return it->second;
    14→        }
    15→        uint32_t offset = static_cast<uint32_t>(data_.size());
    16→        index_[s] = offset;
    17→        data_.insert(data_.end(), s.begin(), s.end());
    18→        data_.push_back('\0');
    19→        return offset;
    20→    }
    21→
    22→    const std::vector<char>& data() const { return data_; }
    23→    std::vector<char>& mutable_data() { return data_; }
    24→
    25→private:
    26→    std::unordered_map<std::string, uint32_t> index_;
    27→    std::vector<char> data_;
    28→};
    29→


grep -r "geo_cells\|street_entries\|admin_cells" /root/traccar-geocoder/builder/src/ --include="*.cpp" --include="*.h" | head -40