#include <stdio.h>
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
+#include <vector>
#include "model.h"
#include "action.h"
return type == ATOMIC_RMWC;
}
+bool ModelAction::is_fence() const
+{
+ return type == ATOMIC_FENCE;
+}
+
bool ModelAction::is_initialization() const
{
return type == ATOMIC_INIT;
/** This method changes an existing read part of an RMW action into either:
* (1) a full RMW action in case of the completed write or
* (2) a READ action in case a failed action.
+ * @todo If the memory_order changes, we may potentially need to update our
+ * clock vector.
*/
-
-//TODO: If the memory_order changes, we may potentially need to update our
-//clock vector.
-
void ModelAction::process_rmw(ModelAction * act) {
this->order=act->order;
if (act->is_rmwc())
* @param act is the action to consider exploring a reordering.
* @return tells whether we have to explore a reordering.
*/
-
bool ModelAction::is_synchronizing(const ModelAction *act) const
{
//Same thread can't be reordered
void ModelAction::create_cv(const ModelAction *parent)
{
- ASSERT(cv == NULL);
+ if (cv)
+ delete cv;
if (parent)
cv = new ClockVector(parent->cv, this);
cv = new ClockVector(NULL, this);
}
-
/** Update the model action's read_from action */
void ModelAction::read_from(const ModelAction *act)
{
ASSERT(cv);
- if (act->is_release() && this->is_acquire())
- cv->merge(act->cv);
reads_from = act;
+ if (act != NULL && this->is_acquire()) {
+ std::vector< const ModelAction *, MyAlloc<const ModelAction *> > release_heads;
+ model->get_release_seq_heads(this, &release_heads);
+ for (unsigned int i = 0; i < release_heads.size(); i++)
+ synchronize_with(release_heads[i]);
+ }
+}
+
+/**
+ * Synchronize the current thread with the thread corresponding to the
+ * ModelAction parameter.
+ * @param act The ModelAction to synchronize with
+ */
+void ModelAction::synchronize_with(const ModelAction *act) {
+ ASSERT(*act < *this);
+ model->check_promises(cv, act->cv);
+ cv->merge(act->cv);
+}
+
+bool ModelAction::has_synchronized_with(const ModelAction *act) const
+{
+ return cv->has_synchronized_with(act->cv);
}
/**
void ModelAction::print(void) const
{
- const char *type_str;
+ const char *type_str, *mo_str;
switch (this->type) {
case THREAD_CREATE:
type_str = "thread create";
case THREAD_JOIN:
type_str = "thread join";
break;
+ case THREAD_FINISH:
+ type_str = "thread finish";
+ break;
case ATOMIC_READ:
type_str = "atomic read";
break;
case ATOMIC_RMW:
type_str = "atomic rmw";
break;
+ case ATOMIC_FENCE:
+ type_str = "fence";
+ break;
case ATOMIC_RMWR:
type_str = "atomic rmwr";
break;
uint64_t valuetoprint=type==ATOMIC_READ?(reads_from!=NULL?reads_from->value:VALUE_NONE):value;
- printf("(%3d) Thread: %-2d Action: %-13s MO: %d Loc: %14p Value: %-12" PRIu64,
- seq_number, id_to_int(tid), type_str, order, location, valuetoprint);
- if (reads_from)
- printf(" Rf: %d", reads_from->get_seq_number());
+ switch (this->order) {
+ case std::memory_order_relaxed:
+ mo_str = "relaxed";
+ break;
+ case std::memory_order_acquire:
+ mo_str = "acquire";
+ break;
+ case std::memory_order_release:
+ mo_str = "release";
+ break;
+ case std::memory_order_acq_rel:
+ mo_str = "acq_rel";
+ break;
+ case std::memory_order_seq_cst:
+ mo_str = "seq_cst";
+ break;
+ default:
+ mo_str = "unknown";
+ break;
+ }
+
+ printf("(%3d) Thread: %-2d Action: %-13s MO: %7s Loc: %14p Value: %-12" PRIu64,
+ seq_number, id_to_int(tid), type_str, mo_str, location, valuetoprint);
+ if (is_read()) {
+ if (reads_from)
+ printf(" Rf: %d", reads_from->get_seq_number());
+ else
+ printf(" Rf: ?");
+ }
if (cv) {
printf("\t");
cv->print();