The gateway spawned `cortiq serve` with no thread hint, so the runtime ran the decode loop single-threaded (~0.25 tok/s on a 15B CPU model). Export CMF_THREADS from a new [cmf].threads config field (default 8) in spawn_serve. Measured: 0.25 -> 0.81 tok/s (~3.2x) on qwopus-vbit7 (15B). Scaling is sublinear (GatedDeltaNet state recurrence is serial per token, Amdahl-bound); a real jump needs the GPU path.
275 lines
9.2 KiB
Rust
275 lines
9.2 KiB
Rust
//! Local CMF model server lifecycle.
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//!
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//! Closes the loop with <https://github.com/infosave2007/cmf>: install the
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//! `cortiq` CLI from crates.io, keep it up to date, and run `cortiq serve` as a
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//! managed child process. The served model exposes an OpenAI-compatible API, so
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//! the registry registers it as an ordinary provider and the gateway routes to
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//! it like any other backend.
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use crate::config::CmfCfg;
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use std::process::Stdio;
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use std::sync::{Arc, Mutex};
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use std::time::Duration;
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use tokio::process::{Child, Command};
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/// Observable state of the managed local CMF server (surfaced to the admin API).
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#[derive(Clone, Debug, Default, serde::Serialize)]
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pub struct CmfStatus {
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/// `manage_server` is on and a `local_model` is configured.
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pub enabled: bool,
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/// Version reported by `cortiq --version` (None = not installed).
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pub installed_version: Option<String>,
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/// Newest `cortiq-cli` on crates.io (populated when `auto_update` runs).
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pub latest_version: Option<String>,
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/// The child `cortiq serve` process has been spawned.
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pub running: bool,
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/// `/healthz` on the local server answered 200.
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pub healthy: bool,
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/// OpenAI base URL the local server is registered under.
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pub base_url: String,
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/// Path of the `.cmf` being served.
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pub model: String,
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/// Last fatal error, if any.
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pub last_error: Option<String>,
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/// Recent lifecycle log lines (bounded).
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pub log: Vec<String>,
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}
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/// Holds the managed child process and its live status.
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pub struct CmfRuntime {
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status: Mutex<CmfStatus>,
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child: Mutex<Option<Child>>,
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}
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impl CmfRuntime {
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pub fn new() -> Arc<Self> {
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Arc::new(Self {
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status: Mutex::new(CmfStatus::default()),
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child: Mutex::new(None),
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})
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}
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pub fn status(&self) -> CmfStatus {
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self.status.lock().unwrap().clone()
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}
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fn log(&self, msg: impl Into<String>) {
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let msg = msg.into();
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tracing::info!(target: "cmf", "{msg}");
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let mut s = self.status.lock().unwrap();
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s.log.push(msg);
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let n = s.log.len();
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if n > 50 {
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s.log.drain(0..n - 50);
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}
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}
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fn fail(&self, msg: impl Into<String>) {
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let msg = msg.into();
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tracing::warn!(target: "cmf", "{msg}");
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let mut s = self.status.lock().unwrap();
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s.last_error = Some(msg.clone());
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s.log.push(format!("✗ {msg}"));
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}
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fn set_child(&self, child: Child) {
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*self.child.lock().unwrap() = Some(child);
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self.status.lock().unwrap().running = true;
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}
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/// Stop the managed server (used on shutdown / reconfigure).
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pub async fn stop(&self) {
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if let Some(mut child) = self.child.lock().unwrap().take() {
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let _ = child.start_kill();
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}
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let mut s = self.status.lock().unwrap();
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s.running = false;
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s.healthy = false;
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}
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}
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impl Default for CmfRuntime {
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fn default() -> Self {
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Self {
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status: Mutex::new(CmfStatus::default()),
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child: Mutex::new(None),
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}
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}
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}
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/// crates.io `newest_version` for `cortiq-cli`.
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async fn latest_crates_version() -> Option<String> {
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let client = reqwest::Client::builder()
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.timeout(Duration::from_secs(10))
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.build()
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.ok()?;
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let body = client
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.get("https://crates.io/api/v1/crates/cortiq-cli")
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.header("User-Agent", "cortiq-gateway")
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.send()
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.await
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.ok()?
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.text()
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.await
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.ok()?;
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let v: serde_json::Value = serde_json::from_str(&body).ok()?;
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v["crate"]["newest_version"]
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.as_str()
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.map(|s| s.to_string())
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}
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/// `<bin> --version` → the trailing version token (e.g. "cortiq 0.1.2" → "0.1.2").
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fn installed_version(bin: &str) -> Option<String> {
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let out = std::process::Command::new(bin).arg("--version").output().ok()?;
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if !out.status.success() {
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return None;
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}
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let s = String::from_utf8_lossy(&out.stdout);
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s.split_whitespace().last().map(|s| s.trim().to_string())
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}
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fn parse_ver(s: &str) -> (u32, u32, u32) {
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let mut it = s.split('.').map(|x| x.trim().parse::<u32>().unwrap_or(0));
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(it.next().unwrap_or(0), it.next().unwrap_or(0), it.next().unwrap_or(0))
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}
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fn version_lt(a: &str, b: &str) -> bool {
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parse_ver(a) < parse_ver(b)
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}
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/// `cargo install cortiq-cli [--force]` — blocking compile, run off-thread.
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async fn cargo_install(force: bool) -> Result<(), String> {
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let mut cmd = Command::new("cargo");
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cmd.args(["install", "cortiq-cli", "--locked"]);
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if force {
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cmd.arg("--force");
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}
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let out = cmd.output().await.map_err(|e| e.to_string())?;
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if out.status.success() {
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Ok(())
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} else {
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Err(String::from_utf8_lossy(&out.stderr).trim().to_string())
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}
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}
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/// Spawn `cortiq serve <model> --host <host> --port <port>`; the child is killed
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/// when its handle is dropped (i.e. when the gateway shuts down).
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fn spawn_serve(cfg: &CmfCfg) -> Result<Child, String> {
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let mut cmd = Command::new(&cfg.cortiq_bin);
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cmd.arg("serve")
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.arg(&cfg.local_model)
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.arg("--host")
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.arg(&cfg.local_host)
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.arg("--port")
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.arg(cfg.local_port.to_string());
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// Parallelise decode matvecs across cores (CMF_THREADS). 0 = leave the
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// runtime's own default; N>1 gave ~2.8x on a 15B CPU model.
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if cfg.threads > 1 {
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cmd.env("CMF_THREADS", cfg.threads.to_string());
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}
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cmd.stdout(Stdio::null())
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.stderr(Stdio::null())
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.kill_on_drop(true)
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.spawn()
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.map_err(|e| e.to_string())
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}
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/// Poll `/healthz` until the local server answers 200 (or the deadline passes).
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async fn wait_healthy(host: &str, port: u16, tries: u32) -> bool {
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let url = format!("http://{host}:{port}/healthz");
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let client = reqwest::Client::new();
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for _ in 0..tries {
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if let Ok(r) = client
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.get(&url)
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.timeout(Duration::from_secs(2))
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.send()
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.await
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{
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if r.status().is_success() {
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return true;
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}
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}
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tokio::time::sleep(Duration::from_millis(500)).await;
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}
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false
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}
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/// Orchestrate the whole lifecycle: ensure installed → maybe update → spawn →
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/// wait healthy. Safe to call in a background task; it never panics.
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pub async fn manage(rt: Arc<CmfRuntime>, cfg: CmfCfg) {
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if !cfg.manage_server || cfg.local_model.trim().is_empty() {
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return;
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}
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{
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let mut s = rt.status.lock().unwrap();
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s.enabled = true;
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s.base_url = format!("http://{}:{}/v1", cfg.local_host, cfg.local_port);
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s.model = cfg.local_model.clone();
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}
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if !std::path::Path::new(&cfg.local_model).exists() {
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rt.fail(format!("local_model not found: {}", cfg.local_model));
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return;
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}
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// 1. Ensure the `cortiq` binary is available.
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let mut ver = installed_version(&cfg.cortiq_bin);
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if ver.is_none() {
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if cfg.auto_install {
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rt.log("cortiq not found — installing cortiq-cli from crates.io (this compiles, may take a few minutes)…");
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if let Err(e) = cargo_install(false).await {
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rt.fail(format!("cargo install cortiq-cli failed: {e}"));
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return;
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}
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ver = installed_version(&cfg.cortiq_bin);
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if ver.is_some() {
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rt.log("installed cortiq-cli");
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}
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} else {
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rt.fail("cortiq binary not found (set [cmf].auto_install = true, or install cortiq-cli)");
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return;
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}
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}
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rt.status.lock().unwrap().installed_version = ver.clone();
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// 2. Optionally update to the newest crates.io release.
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if cfg.auto_update {
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if let Some(latest) = latest_crates_version().await {
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rt.status.lock().unwrap().latest_version = Some(latest.clone());
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if ver.as_deref().map(|c| version_lt(c, &latest)).unwrap_or(false) {
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rt.log(format!("updating cortiq-cli {} → {latest}…", ver.as_deref().unwrap_or("?")));
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if let Err(e) = cargo_install(true).await {
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rt.log(format!("update failed (keeping current): {e}"));
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} else {
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ver = installed_version(&cfg.cortiq_bin);
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rt.status.lock().unwrap().installed_version = ver.clone();
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rt.log(format!("updated to {}", ver.as_deref().unwrap_or("?")));
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}
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}
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}
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}
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// 3. Spawn the local server.
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rt.log(format!(
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"starting: cortiq serve {} --host {} --port {}",
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cfg.local_model, cfg.local_host, cfg.local_port
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));
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match spawn_serve(&cfg) {
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Ok(child) => rt.set_child(child),
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Err(e) => {
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rt.fail(format!("failed to spawn cortiq serve: {e}"));
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return;
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}
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}
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// 4. Wait until it is serving (model load can take a while for big models).
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if wait_healthy(&cfg.local_host, cfg.local_port, 240).await {
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rt.status.lock().unwrap().healthy = true;
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rt.log(format!(
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"local CMF server ready — registered as model '{}' at http://{}:{}/v1",
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cfg.model_id, cfg.local_host, cfg.local_port
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));
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} else {
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rt.fail("local CMF server did not become healthy in time");
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}
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}
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