#include <stdio.h>
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
+#include <vector>
#include "model.h"
#include "action.h"
delete cv;
}
+void ModelAction::copy_from_new(ModelAction *newaction)
+{
+ seq_number = newaction->seq_number;
+}
+
+bool ModelAction::is_mutex_op() const
+{
+ return type == ATOMIC_LOCK || type == ATOMIC_TRYLOCK || type == ATOMIC_UNLOCK;
+}
+
+bool ModelAction::is_lock() const
+{
+ return type == ATOMIC_LOCK;
+}
+
+bool ModelAction::is_unlock() const
+{
+ return type == ATOMIC_UNLOCK;
+}
+
+bool ModelAction::is_trylock() const
+{
+ return type == ATOMIC_TRYLOCK;
+}
+
+bool ModelAction::is_success_lock() const
+{
+ return type == ATOMIC_LOCK || (type == ATOMIC_TRYLOCK && value == VALUE_TRYSUCCESS);
+}
+
+bool ModelAction::is_failed_trylock() const
+{
+ return (type == ATOMIC_TRYLOCK && value == VALUE_TRYFAILED);
+}
+
bool ModelAction::is_read() const
{
return type == ATOMIC_READ || type == ATOMIC_RMWR || type == ATOMIC_RMW;
return type == ATOMIC_RMWC;
}
+bool ModelAction::is_fence() const
+{
+ return type == ATOMIC_FENCE;
+}
+
bool ModelAction::is_initialization() const
{
return type == ATOMIC_INIT;
}
void ModelAction::copy_typeandorder(ModelAction * act) {
- this->type=act->type;
- this->order=act->order;
+ this->type = act->type;
+ this->order = act->order;
}
/** This method changes an existing read part of an RMW action into either:
return false;
}
-void ModelAction::create_cv(const ModelAction *parent)
+bool ModelAction::is_conflicting_lock(const ModelAction *act) const
{
- if (cv)
- delete cv;
+ //Must be different threads to reorder
+ if (same_thread(act))
+ return false;
+
+ //Try to reorder a lock past a successful lock
+ if (act->is_success_lock())
+ return true;
+
+ //Try to push a successful trylock past an unlock
+ if (act->is_unlock() && is_trylock() && value == VALUE_TRYSUCCESS)
+ return true;
+
+ return false;
+}
+/**
+ * Create a new clock vector for this action. Note that this function allows a
+ * user to clobber (and leak) a ModelAction's existing clock vector. A user
+ * should ensure that the vector has already either been rolled back
+ * (effectively "freed") or freed.
+ *
+ * @param parent A ModelAction from which to inherit a ClockVector
+ */
+void ModelAction::create_cv(const ModelAction *parent)
+{
if (parent)
cv = new ClockVector(parent->cv, this);
else
cv = new ClockVector(NULL, this);
}
+void ModelAction::set_try_lock(bool obtainedlock) {
+ if (obtainedlock)
+ value=VALUE_TRYSUCCESS;
+ else
+ value=VALUE_TRYFAILED;
+}
+
/** Update the model action's read_from action */
void ModelAction::read_from(const ModelAction *act)
{
ASSERT(cv);
- if (act!=NULL && act->is_release() && this->is_acquire()) {
- synchronize_with(act);
- cv->merge(act->cv);
- }
reads_from = act;
+ if (act != NULL && this->is_acquire()) {
+ rel_heads_list_t release_heads;
+ model->get_release_seq_heads(this, &release_heads);
+ for (unsigned int i = 0; i < release_heads.size(); i++)
+ if (!synchronize_with(release_heads[i]))
+ model->set_bad_synchronization();
+ }
}
/**
* Synchronize the current thread with the thread corresponding to the
* ModelAction parameter.
* @param act The ModelAction to synchronize with
+ * @return True if this is a valid synchronization; false otherwise
*/
-void ModelAction::synchronize_with(const ModelAction *act) {
+bool ModelAction::synchronize_with(const ModelAction *act) {
+ if (*this < *act && type != THREAD_JOIN && type != ATOMIC_LOCK)
+ return false;
model->check_promises(cv, act->cv);
cv->merge(act->cv);
+ return true;
+}
+
+bool ModelAction::has_synchronized_with(const ModelAction *act) const
+{
+ return cv->has_synchronized_with(act->cv);
}
/**
return act->cv->synchronized_since(this);
}
-void ModelAction::print(void) const
+/**
+ * Print nicely-formatted info about this ModelAction
+ *
+ * @param print_cv True if we want to print clock vector data. Might be false,
+ * for instance, in situations where the clock vector might be invalid
+ */
+void ModelAction::print(bool print_cv) const
{
const char *type_str, *mo_str;
switch (this->type) {
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;
case ATOMIC_INIT:
type_str = "init atomic";
break;
+ case ATOMIC_LOCK:
+ type_str = "lock";
+ break;
+ case ATOMIC_UNLOCK:
+ type_str = "unlock";
+ break;
+ case ATOMIC_TRYLOCK:
+ type_str = "trylock";
+ break;
default:
type_str = "unknown type";
}
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 (reads_from)
- printf(" Rf: %d", reads_from->get_seq_number());
- if (cv) {
+ if (is_read()) {
+ if (reads_from)
+ printf(" Rf: %d", reads_from->get_seq_number());
+ else
+ printf(" Rf: ?");
+ }
+ if (cv && print_cv) {
printf("\t");
cv->print();
} else
projects / c11tester.git / blobdiff