PTHREAD_CREATE, // < A pthread creation action
PTHREAD_JOIN, // < A pthread join action
- ATOMIC_UNINIT, // < Represents an uninitialized atomic
NONATOMIC_WRITE, // < Represents a non-atomic store
ATOMIC_INIT, // < Initialization of an atomic object (e.g., atomic_init())
ATOMIC_WRITE, // < An atomic write action
ATOMIC_WAIT, // < A wait action
ATOMIC_TIMEDWAIT, // < A timed wait action
ATOMIC_ANNOTATION, // < An annotation action to pass information to a trace analysis
+ READY_FREE, // < Write is ready to be freed
+ ATOMIC_NOP // < Placeholder
} action_type_t;
* @brief Represents a single atomic action
*
* A ModelAction is always allocated as non-snapshotting, because it is used in
- * multiple executions during backtracking. Except for fake uninitialized
- * (ATOMIC_UNINIT) ModelActions, each action is assigned a unique sequence
+ * multiple executions during backtracking. Except for non-atomic write
+ * ModelActions, each action is assigned a unique sequence
* number.
*/
class ModelAction {
thread_id_t get_tid() const { return tid; }
action_type get_type() const { return type; }
+ void set_type(action_type _type) { type = _type; }
+ void set_free() { type = READY_FREE; }
memory_order get_mo() const { return order; }
memory_order get_original_mo() const { return original_order; }
void set_mo(memory_order order) { this->order = order; }
bool is_trylock() const;
bool is_unlock() const;
bool is_wait() const;
+ bool is_create() const;
bool is_notify() const;
bool is_notify_one() const;
bool is_success_lock() const;
bool is_failed_trylock() const;
bool is_atomic_var() const;
- bool is_uninitialized() const;
bool is_read() const;
bool is_write() const;
+ bool is_free() const;
bool is_yield() const;
bool could_be_write() const;
bool is_rmwr() const;
/* to accomodate pthread create and join */
Thread * thread_operand;
void set_thread_operand(Thread *th) { thread_operand = th; }
- void set_uninit_action(ModelAction *act) { uninitaction = act; }
- ModelAction * get_uninit_action() { return uninitaction; }
void setTraceRef(sllnode<ModelAction *> *ref) { trace_ref = ref; }
void setThrdMapRef(sllnode<ModelAction *> *ref) { thrdmap_ref = ref; }
void setActionRef(sllnode<ModelAction *> *ref) { action_ref = ref; }
/** @brief The last fence release from the same thread */
const ModelAction *last_fence_release;
- ModelAction * uninitaction;
/**
* @brief The clock vector for this operation
/**
* @brief The sequence number of this action
*
- * Except for ATOMIC_UNINIT actions, this number should be unique and
+ * Except for non atomic write actions, this number should be unique and
* should represent the action's position in the execution order.
*/
modelclock_t seq_number;