#define __PROMISE_H__
#include <inttypes.h>
-#include "threads-model.h"
+#include <vector>
-#include "model.h"
#include "modeltypes.h"
+#include "mymemory.h"
+
+class ModelAction;
struct future_value {
uint64_t value;
class Promise {
public:
Promise(ModelAction *read, struct future_value fv);
- modelclock_t get_expiration() const { return expiration; }
- ModelAction * get_action() const { return read; }
+ bool add_reader(ModelAction *reader);
+ ModelAction * get_reader(unsigned int i) const;
+ unsigned int get_num_readers() const { return readers.size(); }
bool eliminate_thread(thread_id_t tid);
void add_thread(thread_id_t tid);
bool thread_is_available(thread_id_t tid) const;
bool has_failed() const;
- uint64_t get_value() const { return value; }
void set_write(const ModelAction *act) { write = act; }
const ModelAction * get_write() const { return write; }
int get_num_available_threads() const { return num_available_threads; }
bool is_compatible(const ModelAction *act) const;
bool is_compatible_exclusive(const ModelAction *act) const;
+ bool same_value(const ModelAction *write) const;
+ bool same_location(const ModelAction *act) const;
+
+ modelclock_t get_expiration() const { return fv.expiration; }
+ uint64_t get_value() const { return fv.value; }
+ struct future_value get_fv() const { return fv; }
void print() const;
+ bool equals(const Promise *x) const { return this == x; }
+ bool equals(const ModelAction *x) const { return false; }
+
SNAPSHOTALLOC
private:
/** @brief Thread ID(s) for thread(s) that potentially can satisfy this
int num_available_threads;
- const uint64_t value;
- const modelclock_t expiration;
+ const future_value fv;
- /** @brief The action which reads a promised value */
- ModelAction * const read;
+ /** @brief The action(s) which read the promised future value */
+ std::vector< ModelAction *, SnapshotAlloc<ModelAction *> > readers;
const ModelAction *write;
};