Struct ExternalRunner 

pub struct ExternalRunner { /* private fields */ }

Runs external framework benchmarks as subprocesses.

Injects BENCH_START_EPOCH_NS into the subprocess environment, passes the workload JSON path as the last argument, and parses the EBP JSON output from stdout.

Example

use adk_bench::ExternalRunner;

let runner = ExternalRunner::new(300);
assert_eq!(runner.timeout(), std::time::Duration::from_secs(300));

Implementations

impl ExternalRunner

pub fn new(timeout_secs: u64) -> Self

Creates a new ExternalRunner with the specified timeout in seconds.

pub fn timeout(&self) -> Duration

Returns the configured timeout duration.

pub async fn run( &self, config: &ExternalFrameworkConfig, workload_path: &str, ) -> Result<ExternalMetricsOutput>

Executes the external framework and parses its EBP JSON output.

The subprocess receives:

• BENCH_START_EPOCH_NS env var (monotonic clock nanosecond timestamp at spawn time)
• Workload JSON file path as the last CLI argument

Returns error if subprocess times out, exits non-zero, or emits invalid JSON.

Errors

• [BenchError::ExternalTimeout] if the subprocess exceeds the configured timeout
• [BenchError::ExternalRunner] if the subprocess exits with non-zero status or emits invalid JSON