
Auto types aren't very neat as return values because they move the burden of knowledge to the reader. Using an explicit, and somewhat self-explanatory, type makes it easier to assess the code without knowing the implementation of the type.
46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
/**
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* MXS-1503: Make sure no extra slaves are taken into use
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*
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* https://jira.mariadb.org/browse/MXS-1503
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*/
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#include "testconnections.h"
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#include <vector>
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#include <thread>
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#include <iostream>
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void query(MYSQL* conn, std::string q)
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{
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execute_query(conn, "%s", q.c_str());
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mysql_close(conn);
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}
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int main(int argc, char** argv)
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{
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TestConnections test(argc, argv);
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std::vector<std::thread> connections;
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test.maxscales->connect();
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Row original_row = get_row(test.maxscales->conn_rwsplit[0], "SELECT @@server_id");
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for (int i = 0; i < 10; i++)
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{
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connections.emplace_back(query, test.maxscales->open_rwsplit_connection(), "SELECT SLEEP(10)");
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sleep(1);
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Row row = get_row(test.maxscales->conn_rwsplit[0], "SELECT @@server_id");
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test.assert(row == original_row, "Value of @@server_id should not change: %s", row.at(0).c_str());
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}
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for (auto& a: connections)
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{
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a.join();
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Row row = get_row(test.maxscales->conn_rwsplit[0], "SELECT @@server_id");
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test.assert(row == original_row, "Value of @@server_id should not change: %s", row.at(0).c_str());
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}
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test.maxscales->disconnect();
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return test.global_result;
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}
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