#include <list>
#include <cstddef>
+#include <inttypes.h>
-#include "threads.h"
#include "mymemory.h"
-#include "clockvector.h"
#include "memoryorder.h"
+#include "modeltypes.h"
+
+class ClockVector;
+class Thread;
using std::memory_order;
using std::memory_order_relaxed;
/** Note that this value can be legitimately used by a program, and
hence by iteself does not indicate no value. */
-#define VALUE_NONE 1234567890
+#define VALUE_NONE 0xdeadbeef
+
+/** A special value to represent a successful trylock */
+
+#define VALUE_TRYSUCCESS 1
+
+/** A special value to represent a failed trylock */
+#define VALUE_TRYFAILED 0
/** @brief Represents an action type, identifying one of several types of
* ModelAction */
typedef enum action_type {
+ MODEL_FIXUP_RELSEQ, /**< Special ModelAction: finalize a release
+ * sequence */
THREAD_CREATE, /**< A thread creation action */
THREAD_START, /**< First action in each thread */
THREAD_YIELD, /**< A thread yield action */
ATOMIC_RMWC, /**< Convert an atomic RMW action into a READ */
ATOMIC_INIT, /**< Initialization of an atomic object (e.g.,
* atomic_init()) */
- ATOMIC_FENCE,
- ATOMIC_LOCK,
- ATOMIC_TRYLOCK,
- ATOMIC_UNLOCK
+ ATOMIC_FENCE, /**< A fence action */
+ ATOMIC_LOCK, /**< A lock action */
+ ATOMIC_TRYLOCK, /**< A trylock action */
+ ATOMIC_UNLOCK, /**< An unlock action */
+ ATOMIC_NOTIFY_ONE, /**< A notify_one action */
+ ATOMIC_NOTIFY_ALL, /**< A notify all action */
+ ATOMIC_WAIT /**< A wait action */
} action_type_t;
/* Forward declaration */
*/
class ModelAction {
public:
- ModelAction(action_type_t type, memory_order order, void *loc, uint64_t value = VALUE_NONE);
+ ModelAction(action_type_t type, memory_order order, void *loc, uint64_t value = VALUE_NONE, Thread *thread = NULL);
~ModelAction();
- void print(void) const;
+ void print() const;
thread_id_t get_tid() const { return tid; }
action_type get_type() const { return type; }
Node * get_node() const { return node; }
void set_node(Node *n) { node = n; }
+ void copy_from_new(ModelAction *newaction);
+ void set_seq_number(modelclock_t num);
+ void set_try_lock(bool obtainedlock);
+ bool is_relseq_fixup() const;
+ bool is_mutex_op() const;
+ bool is_lock() const;
+ bool is_trylock() const;
+ bool is_unlock() const;
+ bool is_wait() const;
+ bool is_notify() const;
+ bool is_notify_one() const;
+ bool is_success_lock() const;
+ bool is_failed_trylock() const;
bool is_read() const;
bool is_write() const;
+ bool could_be_write() const;
bool is_rmwr() const;
bool is_rmwc() const;
bool is_rmw() const;
bool is_seqcst() const;
bool same_var(const ModelAction *act) const;
bool same_thread(const ModelAction *act) const;
- bool is_synchronizing(const ModelAction *act) const;
+ bool is_conflicting_lock(const ModelAction *act) const;
+ bool could_synchronize_with(const ModelAction *act) const;
void create_cv(const ModelAction *parent = NULL);
ClockVector * get_cv() const { return cv; }
- void read_from(const ModelAction *act);
- void synchronize_with(const ModelAction *act);
+ bool read_from(const ModelAction *act);
+ bool synchronize_with(const ModelAction *act);
bool has_synchronized_with(const ModelAction *act) const;
bool happens_before(const ModelAction *act) const;
void process_rmw(ModelAction * act);
void copy_typeandorder(ModelAction * act);
+ void set_sleep_flag() { sleep_flag=true; }
+ bool get_sleep_flag() { return sleep_flag; }
+ unsigned int hash() const;
+
MEMALLOC
private:
/** The clock vector stored with this action; only needed if this
* action is a store release? */
ClockVector *cv;
+
+ bool sleep_flag;
};
-typedef std::list<ModelAction *> action_list_t;
+typedef std::list< ModelAction *, SnapshotAlloc<ModelAction *> > action_list_t;
#endif /* __ACTION_H__ */