feat: add protocol version

Author: not-matthias

crates/runner-shared/src/fifo.rs

@@ -3,6 +3,8 @@
 pub const RUNNER_CTL_FIFO: &str = "/tmp/runner.ctl.fifo";
 pub const RUNNER_ACK_FIFO: &str = "/tmp/runner.ack.fifo";
 
+pub const CURRENT_PROTOCOL_VERSION: u64 = 1;
+
 /// The different markers that can be set in the perf.data.
 ///
 /// `SampleStart/End`: Marks the start and end of a sampling period. This is used to differentiate between benchmarks.
@@ -27,4 +29,5 @@ pub enum Command {
     SetIntegration { name: String, version: String },
     Err,
     AddMarker { pid: u32, marker: MarkerType },
+    SetVersion(u64),
 }

src/run/runner/wall_time/perf/mod.rs

@@ -337,6 +337,15 @@ impl PerfRunner {
                     markers.push(marker);
                     runner_fifo.send_cmd(FifoCommand::Ack).await?;
                 }
+                FifoCommand::SetVersion(protocol_version) => {
+                    if protocol_version != runner_shared::fifo::CURRENT_PROTOCOL_VERSION {
+                        panic!(
+                            "Integration is outdated, please update the codspeed integration to the latest version."
+                        );
+                    }
+
+                    runner_fifo.send_cmd(FifoCommand::Ack).await?;
+                }
                 _ => {
                     warn!("Received unexpected command: {cmd:?}");
                     runner_fifo.send_cmd(FifoCommand::Err).await?;