#include "action.h"
#include "common.h"
#include "model.h"
-#include "threads.h"
+#include "threads-model.h"
/**
* @brief Node constructor
may_read_from(),
read_from_index(0),
future_values(),
- future_index(-1)
+ future_index(-1),
+ relseq_break_writes(),
+ relseq_break_index(0)
{
if (act) {
act->set_node(this);
bool Node::is_enabled(Thread *t)
{
int thread_id=id_to_int(t->get_id());
- return thread_id < num_threads && (enabled_array[thread_id] == THREAD_ENABLED);
+ return thread_id < num_threads && (enabled_array[thread_id] != THREAD_DISABLED);
}
bool Node::is_enabled(thread_id_t tid)
{
int thread_id=id_to_int(tid);
- return thread_id < num_threads && (enabled_array[thread_id] == THREAD_ENABLED);
+ return thread_id < num_threads && (enabled_array[thread_id] != THREAD_DISABLED);
}
bool Node::has_priority(thread_id_t tid)
return false;
}
+/**
+ * Add a write ModelAction to the set of writes that may break the release
+ * sequence. This is used during replay exploration of pending release
+ * sequences. This Node must correspond to a release sequence fixup action.
+ *
+ * @param write The write that may break the release sequence. NULL means we
+ * allow the release sequence to synchronize.
+ */
+void Node::add_relseq_break(const ModelAction *write)
+{
+ relseq_break_writes.push_back(write);
+}
+
+/**
+ * Get the write that may break the current pending release sequence,
+ * according to the replay / divergence pattern.
+ *
+ * @return A write that may break the release sequence. If NULL, that means
+ * the release sequence should not be broken.
+ */
+const ModelAction * Node::get_relseq_break()
+{
+ if (relseq_break_index < (int)relseq_break_writes.size())
+ return relseq_break_writes[relseq_break_index];
+ else
+ return NULL;
+}
+
+/**
+ * Increments the index into the relseq_break_writes set to explore the next
+ * item.
+ * @return Returns false if we have explored all values.
+ */
+bool Node::increment_relseq_break()
+{
+ DBG();
+ promises.clear();
+ if (relseq_break_index < ((int)relseq_break_writes.size())) {
+ relseq_break_index++;
+ return (relseq_break_index < ((int)relseq_break_writes.size()));
+ }
+ return false;
+}
+
+/**
+ * @return True if all writes that may break the release sequence have been
+ * explored
+ */
+bool Node::relseq_break_empty() {
+ return ((relseq_break_index + 1) >= ((int)relseq_break_writes.size()));
+}
+
void Node::explore(thread_id_t tid)
{
int i = id_to_int(tid);