Struct ChildConfig

server/worker.go:35–66

ChildConfig contains all configuration needed by a child worker process. It is passed from parent to child via the DUCKGRES_CHILD_CONFIG env var as JSON.

// ChildConfig contains all configuration needed by a child worker process.
// It is passed from parent to child via the DUCKGRES_CHILD_CONFIG env var as JSON.
type ChildConfig struct {
	// Connection info (RemoteAddr is known at spawn time; Username/Database are read after TLS)
	RemoteAddr string `json:"remote_addr"`

	// Server config
	DataDir              string   `json:"data_dir"`
	Extensions           []string `json:"extensions"`
	IdleTimeout          int64    `json:"idle_timeout"`            // nanoseconds
	ClientIdleTimeoutMax int64    `json:"client_idle_timeout_max"` // nanoseconds

	// TLS config
	TLSCertFile string `json:"tls_cert_file"`
	TLSKeyFile  string `json:"tls_key_file"`

	// DuckLake config
	DuckLake DuckLakeConfig `json:"ducklake"`

	// Authentication - map of username -> password
	// Child will look up after reading username from startup message
	Users map[string]string `json:"users"`

	// Backend key (pre-generated by parent for cancel request routing)
	// BackendPid is set to child's actual PID after fork
	BackendSecretKey int32 `json:"backend_secret_key"`

	// ServerStartTime is the parent server's start time (Unix nanoseconds).
	// Used to distinguish server uptime from child process uptime.
	ServerStartTime int64 `json:"server_start_time"`

	// ServerVersion is the parent server's version string.
	// Used to distinguish control_plane_version() from worker_version().
	ServerVersion string `json:"server_version,omitempty"`
}

// RunChildMode is the entry point for child worker processes.