X-Git-Url: http://plrg.eecs.uci.edu/git/?p=cdsspec-compiler.git;a=blobdiff_plain;f=promise.h;h=1560b5809dec9672310c5a65fb3c9c28f3841309;hp=d729e0309868846425d0c439962187b7aa83de44;hb=c5703c61b49d29d3f56fdcb06847f2aa811eeb4e;hpb=f001f8b98c907df8bd7f38e92c00445071f26304

diff --git a/promise.h b/promise.h
index d729e03..1560b58 100644
--- a/promise.h
+++ b/promise.h
@@ -9,21 +9,65 @@
 
 #include <inttypes.h>
 
+#include "modeltypes.h"
+#include "mymemory.h"
+#include "stl-model.h"
+
 class ModelAction;
+class ModelExecution;
+
+struct future_value {
+	uint64_t value;
+	modelclock_t expiration;
+	thread_id_t tid;
+};
 
 class Promise {
  public:
-	Promise(ModelAction *act, uint64_t value) :
-		value(value), read(act), numthreads(1)
-	{ }
-	ModelAction * get_action() const { return read; }
-	int increment_threads() { return ++numthreads; }
-	uint64_t get_value() const { return value; }
+	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;
+	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; }
+	bool equals(const ModelAction *x) const { return false; }
+
+	SNAPSHOTALLOC
  private:
-	const uint64_t value;
-	ModelAction * const read;
-	unsigned int numthreads;
+	/** @brief The execution which created this Promise */
+	const ModelExecution *execution;
+
+	/** @brief Thread ID(s) for thread(s) that potentially can satisfy this
+	 *  promise */
+	SnapVector<bool> available_thread;
+
+	int num_available_threads;
+
+	const future_value fv;
+
+	/** @brief The action(s) which read the promised future value */
+	SnapVector<ModelAction *> readers;
+
+	const ModelAction *write;
 };
 
 #endif