#include "promise.h"
#include "model.h"
#include "schedule.h"
+#include "action.h"
+#include "threads-model.h"
+
+/**
+ * @brief Promise constructor
+ * @param read The read which reads from a promised future value
+ * @param fv The future value that is promised
+ */
+Promise::Promise(ModelAction *read, struct future_value fv) :
+ num_available_threads(0),
+ fv(fv),
+ read(read),
+ write(NULL)
+{
+ add_thread(fv.tid);
+ eliminate_thread(read->get_tid());
+}
/**
* Eliminate a thread which no longer can satisfy this promise. Once all
/** @brief Print debug info about the Promise */
void Promise::print() const
{
- model_print("Promised value %#" PRIx64 ", read from thread %d, available threads to resolve: ", value, read->get_tid());
+ model_print("Promised value %#" PRIx64 ", read from thread %d, available threads to resolve: ", fv.value, id_to_int(read->get_tid()));
for (unsigned int i = 0; i < available_thread.size(); i++)
if (available_thread[i])
model_print("[%d]", i);
}
/**
- * @param write A store which could satisfy this Promise
- * @return True if the store can satisfy this Promise; false otherwise
+ * @brief Check if an action's thread and location are compatible for resolving
+ * this promise
+ * @param act The action to check against
+ * @return True if we are compatible; false otherwise
*/
-bool Promise::is_compatible(const ModelAction *write) const
+bool Promise::is_compatible(const ModelAction *act) const
{
- return thread_is_available(write->get_tid()) && read->same_var(write);
+ return thread_is_available(act->get_tid()) && read->same_var(act);
}
/**
- * @brief Check if a promise is compatible with a store and is exclusive to its
- * thread
- * @param write The store to check against
+ * @brief Check if an action's thread and location are compatible for resolving
+ * this promise, and that the promise is thread-exclusive
+ * @param act The action to check against
* @return True if we are compatible and exclusive; false otherwise
*/
-bool Promise::is_compatible_exclusive(const ModelAction *write) const
+bool Promise::is_compatible_exclusive(const ModelAction *act) const
{
- return get_num_available_threads() == 1 && is_compatible(write);
+ return get_num_available_threads() == 1 && is_compatible(act);
}