X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=promise.h;h=84d5aa49b3af7b8156ef4744e270f128c6a0cabf;hb=130a35155171503883aaf18e57f8957ce63d06e8;hp=c131d743aa185d2972cd2d1922fb7ac43d6c3c8d;hpb=963f325c5b5df37487e17c3a05f4d15efabb8870;p=model-checker.git

diff --git a/promise.h b/promise.h
index c131d74..84d5aa4 100644
--- a/promise.h
+++ b/promise.h
@@ -8,12 +8,13 @@
 #define __PROMISE_H__
 
 #include <inttypes.h>
-#include <vector>
 
 #include "modeltypes.h"
 #include "mymemory.h"
+#include "stl-model.h"
 
 class ModelAction;
+class ModelExecution;
 
 struct future_value {
 	uint64_t value;
@@ -23,22 +24,29 @@ struct future_value {
 
 class Promise {
  public:
-	Promise(ModelAction *read, struct future_value fv);
-	ModelAction * get_action() const { return read; }
+	Promise(const ModelExecution *execution, ModelAction *read, struct future_value fv);
+	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;
+	unsigned int max_available_thread_idx() const;
 	bool has_failed() const;
 	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; }
 
+	int get_index() const;
+
 	void print() const;
 
 	bool equals(const Promise *x) const { return this == x; }
@@ -46,16 +54,19 @@ class Promise {
 
 	SNAPSHOTALLOC
  private:
+	/** @brief The execution which created this Promise */
+	const ModelExecution *execution;
+
 	/** @brief Thread ID(s) for thread(s) that potentially can satisfy this
 	 *  promise */
-	std::vector< bool, SnapshotAlloc<bool> > available_thread;
+	SnapVector<bool> available_thread;
 
 	int num_available_threads;
 
 	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 */
+	SnapVector<ModelAction *> readers;
 
 	const ModelAction *write;
 };