56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
#include "catch.hpp"
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#include "duckdb/main/appender.hpp"
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#include "test_helpers.hpp"
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#include <atomic>
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#include <thread>
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#include <vector>
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using namespace duckdb;
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using namespace std;
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atomic<int> finished_threads;
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#define THREAD_COUNT 8
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#define INSERT_ELEMENTS 2000
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static void append_to_integers(DuckDB *db, size_t threadnr) {
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Connection con(*db);
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Appender appender(con, "integers");
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for (size_t i = 0; i < INSERT_ELEMENTS; i++) {
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appender.BeginRow();
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appender.Append<int32_t>(1);
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appender.EndRow();
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}
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finished_threads++;
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while (finished_threads != THREAD_COUNT)
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;
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appender.Close();
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}
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TEST_CASE("Test concurrent appends", "[appender][.]") {
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duckdb::unique_ptr<QueryResult> result;
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DBConfig config;
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config.options.maximum_threads = 1;
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DuckDB db(nullptr, &config);
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Connection con(db);
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// create a single table to append to
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REQUIRE_NO_FAIL(con.Query("CREATE TABLE integers(i INTEGER)"));
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finished_threads = 0;
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thread threads[THREAD_COUNT];
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for (size_t i = 0; i < THREAD_COUNT; i++) {
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threads[i] = thread(append_to_integers, &db, i);
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}
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for (size_t i = 0; i < THREAD_COUNT; i++) {
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threads[i].join();
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}
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// check how many entries we have
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result = con.Query("SELECT COUNT(*) FROM integers");
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REQUIRE(CHECK_COLUMN(result, 0, {THREAD_COUNT * INSERT_ELEMENTS}));
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}
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