settings.hpp

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#pragma once
 
/// @file userver/storages/odbc/settings.hpp
/// @brief ODBC cluster static configuration (DSN pools)
 
#include <cstddef>
#include <string>
#include <vector>
 
USERVER_NAMESPACE_BEGIN
 
namespace storages::odbc::settings {
 
/// @brief Named ODBC query metrics options.
struct StatementMetricsSettings final {
    /// Maximum number of named query-name entries retained by each ODBC pool.
    /// Each entry exports three metric series. A value of 0 disables named
    /// query metrics.
    std::size_t max_statements{0};
 
    bool operator==(const StatementMetricsSettings&) const = default;
};
 
/// @brief Per-connection prepared statement cache options.
struct PreparedStatementCacheSettings final {
    /// Maximum number of parameterized SQL statements retained per physical
    /// ODBC connection. A value of 0 disables the cache.
    std::size_t max_size{0};
 
    bool operator==(const PreparedStatementCacheSettings&) const = default;
};
 
struct PoolSettings final {
    std::size_t min_size{5};
    std::size_t max_size{10};
 
    bool operator==(const PoolSettings&) const = default;
};
 
struct HostSettings final {
    const std::string dsn;
    PoolSettings pool;
 
    bool operator==(const HostSettings&) const = default;
};
 
struct ODBCClusterSettings final {
    std::vector<HostSettings> pools;
 
    bool operator==(const ODBCClusterSettings&) const = default;
};
 
}  // namespace storages::odbc::settings
 
USERVER_NAMESPACE_END