Method _drain

src/tools/shell_session.js:279–306

()

  // ─── Internal ──────────────────────────────────────────────────────────

  _drain() {
    // Iterative — avoids recursion stack growth when many sentinels arrive
    // back-to-back (e.g. fast-running queued commands).
    while (this.queue.length > 0) {
      const head = this.queue[0];
      const re = new RegExp(`${head.sentinel}_(-?\\d+)_`);
      const match = this.buffer.match(re);
      if (!match) return;

      const sentinelStart = match.index;
      let stdout = this.buffer.slice(0, sentinelStart);
      stdout = stdout.replace(/\r?\n$/, '');
      const exitCode = parseInt(match[1], 10);

      const sentinelEnd = sentinelStart + match[0].length;
      this.buffer = this.buffer.slice(sentinelEnd).replace(/^\r?\n/, '');

      const cleanOutput = sanitizeToolOutput(stdout);

      clearTimeout(head.timer);
      this.queue.shift();
      head.resolve({
        stdout: cleanOutput,
        exitCode,
        timedOut: head.timedOut(),
      });
    }
  }

  _failPending(reason) {
    while (this.queue.length > 0) {