Method read

src/node/services/serverLockfile.ts:86–103

* Read the lockfile and validate it. * Returns null if the lockfile doesn't exist or is stale (dead PID).

()

   * Returns null if the lockfile doesn't exist or is stale (dead PID).
   */
  async read(): Promise<ServerLockData | null> {
    try {
      await fs.access(this.lockPath);
      const content = await fs.readFile(this.lockPath, "utf-8");
      const data = ServerLockDataSchema.parse(JSON.parse(content));

      // Validate PID is still alive
      if (!this.isProcessAlive(data.pid)) {
        // Clean up stale lockfile
        await this.release();
        return null;
      }

      return data;
    } catch {
      return null;
    }
  }

  /**
   * Release the lockfile by deleting it.