#include "mymemory.h"
#include "memoryorder.h"
#include "modeltypes.h"
-#include "pthread.h"
+#include "mypthread.h"
+#include "classlist.h"
-/* Forward declarations */
-class ClockVector;
-class Thread;
-class Promise;
-
-namespace std {
- class mutex;
+namespace cdsc {
+class mutex;
}
using std::memory_order;
/** @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 */
- THREAD_JOIN, /**< A thread join action */
- THREAD_FINISH, /**< A thread completion action */
- PTHREAD_CREATE, /**< A pthread creation action */
- PTHREAD_JOIN, /**< A pthread join action */
-
- ATOMIC_UNINIT, /**< Represents an uninitialized atomic */
- ATOMIC_READ, /**< An atomic read action */
- ATOMIC_WRITE, /**< An atomic write action */
- ATOMIC_RMWR, /**< The read part of an atomic RMW action */
- ATOMIC_RMW, /**< The write part of an atomic RMW action */
- ATOMIC_RMWC, /**< Convert an atomic RMW action into a READ */
- ATOMIC_INIT, /**< Initialization of an atomic object (e.g.,
- * atomic_init()) */
- 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 */
- ATOMIC_ANNOTATION /**< An annotation action to pass information
- to a trace analysis */
+ THREAD_CREATE, // < A thread creation action
+ THREAD_START, // < First action in each thread
+ THREAD_YIELD, // < A thread yield action
+ THREAD_JOIN, // < A thread join action
+ THREAD_FINISH, // < A thread completion action
+ THREADONLY_FINISH, // < A thread completion action
+ THREAD_SLEEP, // < A sleep operation
+
+ PTHREAD_CREATE, // < A pthread creation action
+ PTHREAD_JOIN, // < A pthread join action
+
+ 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_RMW, // < The write part of an atomic RMW action
+ ATOMIC_READ, // < An atomic read action
+ ATOMIC_RMWR, // < The read part of an atomic RMW action
+ ATOMIC_RMWRCAS, // < The read part of an atomic RMW action
+ ATOMIC_RMWC, // < Convert an atomic RMW action into a READ
+
+ 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
+ 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;
-/* Forward declaration */
-class Node;
-class ClockVector;
/**
* @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 {
public:
ModelAction(action_type_t type, memory_order order, void *loc, uint64_t value = VALUE_NONE, Thread *thread = NULL);
+ ModelAction(action_type_t type, memory_order order, void *loc, uint64_t value, int size);
+ ModelAction(action_type_t type, const char * position, memory_order order, void *loc, uint64_t value, int size);
+ ModelAction(action_type_t type, memory_order order, uint64_t value, uint64_t time);
+ ModelAction(action_type_t type, const char * position, memory_order order, void *loc, uint64_t value = VALUE_NONE, Thread *thread = NULL);
~ModelAction();
void print() const;
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; }
void * get_location() const { return location; }
+ const char * get_position() const { return position; }
modelclock_t get_seq_number() const { return seq_number; }
uint64_t get_value() const { return value; }
uint64_t get_reads_from_value() const;
uint64_t get_write_value() const;
uint64_t get_return_value() const;
- const ModelAction * get_reads_from() const { return reads_from; }
- Promise * get_reads_from_promise() const { return reads_from_promise; }
- std::mutex * get_mutex() const;
-
- Node * get_node() const;
- void set_node(Node *n) { node = n; }
+ ModelAction * get_reads_from() const { return reads_from; }
+ uint64_t get_time() const {return time;}
+ cdsc::mutex * get_mutex() const;
- void set_read_from(const ModelAction *act);
- void set_read_from_promise(Promise *promise);
+ void set_read_from(ModelAction *act);
/** Store the most recent fence-release from the same thread
* @param fence The fence-release that occured prior to this */
void copy_from_new(ModelAction *newaction);
void set_seq_number(modelclock_t num);
+ void reset_seq_number();
void set_try_lock(bool obtainedlock);
bool is_thread_start() const;
bool is_thread_join() const;
- bool is_relseq_fixup() const;
bool is_mutex_op() const;
bool is_lock() const;
+ bool is_sleep() const;
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;
+ bool is_rmwrcas() const;
bool is_rmwc() const;
bool is_rmw() const;
bool is_fence() const;
bool same_thread(const ModelAction *act) const;
bool is_conflicting_lock(const ModelAction *act) const;
bool could_synchronize_with(const ModelAction *act) const;
-
+ int getSize() const;
Thread * get_thread_operand() const;
-
void create_cv(const ModelAction *parent = NULL);
ClockVector * get_cv() const { return cv; }
+ ClockVector * get_rfcv() const { return rf_cv; }
+ void set_rfcv(ClockVector * rfcv) { rf_cv = rfcv; }
bool synchronize_with(const ModelAction *act);
bool has_synchronized_with(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;
-
bool equals(const ModelAction *x) const { return this == x; }
- bool equals(const Promise *x) const { return false; }
-
- bool may_read_from(const ModelAction *write) const;
- bool may_read_from(const Promise *promise) const;
- MEMALLOC
-
void set_value(uint64_t val) { value = val; }
/* to accomodate pthread create and join */
Thread * thread_operand;
- void set_thread_operand(Thread *th) { thread_operand = th; }
+ void set_thread_operand(Thread *th) { thread_operand = th; }
+ void setTraceRef(sllnode<ModelAction *> *ref) { trace_ref = ref; }
+ void setThrdMapRef(sllnode<ModelAction *> *ref) { thrdmap_ref = ref; }
+ void setActionRef(sllnode<ModelAction *> *ref) { action_ref = ref; }
+ sllnode<ModelAction *> * getTraceRef() { return trace_ref; }
+ sllnode<ModelAction *> * getThrdMapRef() { return thrdmap_ref; }
+ sllnode<ModelAction *> * getActionRef() { return action_ref; }
+ SNAPSHOTALLOC
private:
-
const char * get_type_str() const;
const char * get_mo_str() const;
- /** @brief Type of action (read, write, RMW, fence, thread create, etc.) */
- action_type type;
-
- /** @brief The memory order for this operation. */
- memory_order order;
-
- /** @brief The original memory order parameter for this operation. */
- memory_order original_order;
-
/** @brief A pointer to the memory location for this action. */
void *location;
- /** @brief The thread id that performed this action. */
- thread_id_t tid;
+ /** @brief A pointer to the source line for this atomic action. */
+ const char * position;
- /** @brief The value written (for write or RMW; undefined for read) */
- uint64_t value;
-
- /**
- * @brief The store that this action reads from
- *
- * Only valid for reads
- */
- const ModelAction *reads_from;
-
- /**
- * @brief The promise that this action reads from
- *
- * Only valid for reads
- */
- Promise *reads_from_promise;
+ union {
+ /**
+ * @brief The store that this action reads from
+ *
+ * Only valid for reads
+ */
+ ModelAction *reads_from;
+ int size;
+ uint64_t time; //used for sleep
+ };
/** @brief The last fence release from the same thread */
const ModelAction *last_fence_release;
/**
- * @brief A back reference to a Node in NodeStack
+ * @brief The clock vector for this operation
*
- * Only set if this ModelAction is saved on the NodeStack. (A
- * ModelAction can be thrown away before it ever enters the NodeStack.)
+ * Technically, this is only needed for potentially synchronizing
+ * (e.g., non-relaxed) operations, but it is very handy to have these
+ * vectors for all operations.
*/
- Node *node;
+ ClockVector *cv;
+ ClockVector *rf_cv;
+ sllnode<ModelAction *> * trace_ref;
+ sllnode<ModelAction *> * thrdmap_ref;
+ sllnode<ModelAction *> * action_ref;
+
+
+ /** @brief The value written (for write or RMW; undefined for read) */
+ uint64_t value;
+
+ /** @brief Type of action (read, write, RMW, fence, thread create, etc.) */
+ action_type type;
+
+ /** @brief The memory order for this operation. */
+ memory_order order;
+
+ /** @brief The original memory order parameter for this operation. */
+ memory_order original_order;
+
+ /** @brief The thread id that performed this action. */
+ thread_id_t tid;
/**
* @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;
-
- /**
- * @brief The clock vector for this operation
- *
- * Technically, this is only needed for potentially synchronizing
- * (e.g., non-relaxed) operations, but it is very handy to have these
- * vectors for all operations.
- */
- ClockVector *cv;
-
- bool sleep_flag;
};
-#endif /* __ACTION_H__ */
+#endif /* __ACTION_H__ */
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