promise: SnapshotAlloc for vector

[model-checker.git] / promise.h

diff --git a/promise.h b/promise.h
index 180d9b01cc3bfc723d8dc3deb62c83c1a4e90e5a..7e6e396e15f9330e24ed7590e6abaefc9f3b1c38 100644 (file)
--- a/promise.h
+++ b/promise.h
@@ -6,21 +6,44 @@
 
 #ifndef __PROMISE_H__
 #define __PROMISE_H__
+
 #include <inttypes.h>
+#include "threads-model.h"
 
+#include "model.h"
+#include "modeltypes.h"
 
-class ModelAction;
+struct future_value {
+       uint64_t value;
+       modelclock_t expiration;
+};
 
 class Promise {
  public:
-       Promise(ModelAction * act, uint64_t value);
-       const ModelAction * get_action() { return read; }
-       int increment_threads() { return ++numthreads; }
-       
+       Promise(ModelAction *act, struct future_value fv) :
+               value(fv.value),
+               expiration(fv.expiration),
+               read(act),
+               write(NULL)
+       {
+               eliminate_thread(act->get_tid());
+       }
+       modelclock_t get_expiration() const { return expiration; }
+       ModelAction * get_action() const { return read; }
+       bool eliminate_thread(thread_id_t tid);
+       bool thread_is_eliminated(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() { return write; }
+
+       SNAPSHOTALLOC
  private:
-       uint64_t value;
-       ModelAction *read;
-       unsigned int numthreads;
+       std::vector< bool, SnapshotAlloc<bool> > eliminated_thread;
+       const uint64_t value;
+       const modelclock_t expiration;
+       ModelAction * const read;
+       const ModelAction *write;
 };
 
 #endif