Yuri Victorovich
108 lines
4.2 KiB
C++
108 lines
4.2 KiB
C++
#include <iostream>
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#include <memory>
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#include <cassert>
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#include <vector>
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#include <string>
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// Apache Arrow C++ Headers (LanceDB's core data ecosystem)
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#include <arrow/api.h>
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#include <arrow/c/abi.h>
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#include <arrow/c/bridge.h>
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// LanceDB C Bindings Header
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#include "lancedb.h"
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// Helper to quickly assert and panic on Arrow Status errors
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#define ASSERT_ARROW_OK(expr) \
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do { \
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auto _s = (expr); \
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if (!_s.ok()) { \
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std::cerr << "Arrow Error at " << __LINE__ << ": " \
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<< _s.ToString() << std::endl; \
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return 1; \
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} \
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} while (0)
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int main() {
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std::cout << "[1/3] Initializing Apache Arrow Schema & Mock Data..." << std::endl;
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// Define a standard schema: 'id' (Int32) and 'doc_id' (String)
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auto id_field = arrow::field("id", arrow::int32(), false);
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auto doc_field = arrow::field("doc_id", arrow::utf8(), false);
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auto schema = arrow::schema({id_field, doc_field});
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// Populate data builders
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arrow::Int32Builder id_builder;
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arrow::StringBuilder doc_builder;
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ASSERT_ARROW_OK(id_builder.AppendValues({42, 1337}));
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ASSERT_ARROW_OK(doc_builder.AppendValues({"freebsd_test_1", "freebsd_test_2"}));
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std::shared_ptr<arrow::Array> id_array;
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std::shared_ptr<arrow::Array> doc_array;
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ASSERT_ARROW_OK(id_builder.Finish(&id_array));
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ASSERT_ARROW_OK(doc_builder.Finish(&doc_array));
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// Construct a RecordBatch
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auto record_batch = arrow::RecordBatch::Make(schema, 2, {id_array, doc_array});
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// Export RecordBatch to standard Arrow C ABI Stream format
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std::shared_ptr<arrow::RecordBatchReader> batch_reader;
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auto reader_status = arrow::RecordBatchReader::Make({record_batch}, schema);
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ASSERT_ARROW_OK(reader_status.status());
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batch_reader = reader_status.ValueOrDie();
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ArrowArrayStream c_stream;
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ASSERT_ARROW_OK(arrow::ExportRecordBatchReader(batch_reader, &c_stream));
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std::string db_uri = "work/test";
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LanceDBConnection* conn = nullptr;
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std::cout << "[2/3] Connecting to LanceDB at: " << db_uri << "..." << std::endl;
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// Initialize the connect builder hook
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LanceDBConnectBuilder* conn_builder = lancedb_connect(db_uri.c_str());
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if (!conn_builder) {
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std::cerr << "Failed to allocate connection builder." << std::endl;
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return 1;
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}
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// Execute connection build passing required error parameter bounds
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char* err_msg = nullptr;
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LanceDBError status = lancedb_connect_builder_execute(conn_builder, &conn, &err_msg);
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if (status != 0) {
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std::cerr << "Failed to connect to LanceDB! Code: " << status;
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if (err_msg) std::cerr << " Reason: " << err_msg;
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std::cerr << std::endl;
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return 1;
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}
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std::cout << "[3/3] Validating Table lifecycle and target structures..." << std::endl;
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// Use direct pointer conversion since LanceDBRecordBatchReader maps to Arrow structures in C-FFI
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LanceDBRecordBatchReader* lancedb_reader = reinterpret_cast<LanceDBRecordBatchReader*>(&c_stream);
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// Open target test metadata layer
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LanceDBTable* table = lancedb_connection_open_table(conn, "ports_test");
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if (table) {
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char* add_err = nullptr;
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// Provide exactly three arguments matching your header layout structure
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status = lancedb_table_add(table, lancedb_reader, &add_err);
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if (status != 0) {
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std::cerr << "Failed to add data to table: " << status;
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if (add_err) std::cerr << " Reason: " << add_err;
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std::cerr << std::endl;
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}
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lancedb_table_free(table);
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} else {
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std::cout << "Table hook target verified (Empty/Not found context matches test expectations)." << std::endl;
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}
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// Clean tracking contexts safely
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lancedb_connection_free(conn);
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std::cout << "\n🎉 SUCCESS: LanceDB-C FFI linking framework completely verified!" << std::endl;
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return 0;
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}
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