{
  "name": "semaphore",
  "description": "Serializes access to a critical section by name; only one thread at a time can enter a given semaphore",
  "signature": {
    "input": {
      "kind": "semaphore-name",
      "description": "Semaphore name used to serialize access",
      "required": true,
      "mode": "ValueOrExpression"
    },
    "children": {
      "*": {
        "type": "lambda",
        "description": "Executable child lambda object evaluated while the named semaphore is held",
        "required": true,
        "mode": "ExecutableLambda",
        "cardinality": "OneOrMore",
        "role": "ExecutableBody",
        "evaluation": "EvalSelf",
        "projection": "Self"
      }
    },
    "scope": {
      "provides": "semaphore"
    }
  }
}