#include <inttypes.h>
#include "promise.h"
-#include "model.h"
+#include "execution.h"
#include "schedule.h"
#include "action.h"
#include "threads-model.h"
/**
* @brief Promise constructor
+ * @param execution The execution which is creating this Promise
* @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) :
+Promise::Promise(const ModelExecution *execution, ModelAction *read, struct future_value fv) :
+ execution(execution),
num_available_threads(0),
+ num_was_available_threads(0),
fv(fv),
readers(1, read),
write(NULL)
available_thread[id] = true;
num_available_threads++;
}
+ if (id >= was_available_thread.size())
+ was_available_thread.resize(id + 1, false);
+ if (!was_available_thread[id]) {
+ was_available_thread[id] = true;
+ num_was_available_threads++;
+ }
}
/**
return available_thread[id];
}
+bool Promise::thread_was_available(thread_id_t tid) const
+{
+ unsigned int id = id_to_int(tid);
+ if (id >= was_available_thread.size())
+ return false;
+ return was_available_thread[id];
+}
+
+/**
+ * @brief Get an upper bound on the number of available threads
+ *
+ * Gets an upper bound on the number of threads in the available threads set,
+ * useful for iterating over "thread_is_available()".
+ *
+ * @return The upper bound
+ */
+unsigned int Promise::max_available_thread_idx() const
+{
+ return available_thread.size();
+}
+
/** @brief Print debug info about the Promise */
void Promise::print() const
{
- model_print("Promised value %#" PRIx64 ", first read from thread %d, available threads to resolve: ", fv.value, id_to_int(get_reader(0)->get_tid()));
+ model_print("Promised value %#" PRIx64 ", first read from thread %d, available threads to resolve: ",
+ fv.value, id_to_int(get_reader(0)->get_tid()));
+ bool failed = true;
for (unsigned int i = 0; i < available_thread.size(); i++)
- if (available_thread[i])
+ if (available_thread[i]) {
model_print("[%d]", i);
+ failed = false;
+ }
+ if (failed)
+ model_print("(none)");
model_print("\n");
}
{
return get_num_available_threads() == 1 && is_compatible(act);
}
+
+/**
+ * @brief Check if a store's value matches this Promise
+ * @param write The store to check
+ * @return True if the store's written value matches this Promise
+ */
+bool Promise::same_value(const ModelAction *write) const
+{
+ return get_value() == write->get_write_value();
+}
+
+/**
+ * @brief Check if a ModelAction's location matches this Promise
+ * @param act The ModelAction to check
+ * @return True if the action's location matches this Promise
+ */
+bool Promise::same_location(const ModelAction *act) const
+{
+ return get_reader(0)->same_var(act);
+}
+
+/** @brief Get this Promise's index within the execution's promise array */
+int Promise::get_index() const
+{
+ return execution->get_promise_number(this);
+}