#include <new>
#include <stdarg.h>
+#include "model.h"
#include "execution.h"
#include "action.h"
#include "nodestack.h"
};
/** @brief Constructor */
-ModelExecution::ModelExecution(struct model_params *params, Scheduler *scheduler, NodeStack *node_stack) :
+ModelExecution::ModelExecution(ModelChecker *m,
+ struct model_params *params,
+ Scheduler *scheduler,
+ NodeStack *node_stack) :
+ model(m),
params(params),
scheduler(scheduler),
action_trace(new action_list_t()),
- thread_map(new HashTable<int, Thread *, int>()),
+ thread_map(),
obj_map(new HashTable<const void *, action_list_t *, uintptr_t, 4>()),
- condvar_waiters_map(new HashTable<const void *, action_list_t *, uintptr_t, 4>()),
- obj_thrd_map(new HashTable<void *, SnapVector<action_list_t> *, uintptr_t, 4 >()),
- promises(new SnapVector<Promise *>()),
- futurevalues(new SnapVector<struct PendingFutureValue>()),
- pending_rel_seqs(new SnapVector<struct release_seq *>()),
- thrd_last_action(new SnapVector<ModelAction *>(1)),
- thrd_last_fence_release(new SnapVector<ModelAction *>()),
+ condvar_waiters_map(),
+ obj_thrd_map(),
+ promises(),
+ futurevalues(),
+ pending_rel_seqs(),
+ thrd_last_action(1),
+ thrd_last_fence_release(),
node_stack(node_stack),
priv(new struct model_snapshot_members()),
- mo_graph(new CycleGraph()),
- execution_number(1)
+ mo_graph(new CycleGraph())
{
/* Initialize a model-checker thread, for special ModelActions */
model_thread = new Thread(get_next_id());
- thread_map->put(id_to_int(model_thread->get_id()), model_thread);
+ thread_map.put(id_to_int(model_thread->get_id()), model_thread);
scheduler->register_engine(this);
}
ModelExecution::~ModelExecution()
{
for (unsigned int i = 0; i < get_num_threads(); i++)
- delete thread_map->get(i);
- delete thread_map;
+ delete thread_map.get(i);
- delete obj_thrd_map;
delete obj_map;
- delete condvar_waiters_map;
delete action_trace;
- for (unsigned int i = 0; i < promises->size(); i++)
- delete (*promises)[i];
- delete promises;
+ for (unsigned int i = 0; i < promises.size(); i++)
+ delete promises[i];
- delete pending_rel_seqs;
-
- delete thrd_last_action;
- delete thrd_last_fence_release;
delete mo_graph;
delete priv;
}
+int ModelExecution::get_execution_number() const
+{
+ return model->get_execution_number();
+}
+
static action_list_t * get_safe_ptr_action(HashTable<const void *, action_list_t *, uintptr_t, 4> * hash, void * ptr)
{
action_list_t *tmp = hash->get(ptr);
action_list_t * ModelExecution::get_actions_on_obj(void * obj, thread_id_t tid) const
{
- SnapVector<action_list_t> *wrv=obj_thrd_map->get(obj);
+ SnapVector<action_list_t> *wrv = obj_thrd_map.get(obj);
if (wrv==NULL)
return NULL;
unsigned int thread=id_to_int(tid);
return NULL;
/* Skip past the release */
- action_list_t *list = action_trace;
- action_list_t::reverse_iterator rit;
+ const action_list_t *list = action_trace;
+ action_list_t::const_reverse_iterator rit;
for (rit = list->rbegin(); rit != list->rend(); rit++)
if (*rit == last_release)
break;
struct future_value fv = node->get_future_value();
Promise *promise = new Promise(this, curr, fv);
curr->set_read_from_promise(promise);
- promises->push_back(promise);
+ promises.push_back(promise);
mo_graph->startChanges();
updated = r_modification_order(curr, promise);
mo_graph->commitChanges();
/* Should we go to sleep? (simulate spurious failures) */
if (curr->get_node()->get_misc() == 0) {
- get_safe_ptr_action(condvar_waiters_map, curr->get_location())->push_back(curr);
+ get_safe_ptr_action(&condvar_waiters_map, curr->get_location())->push_back(curr);
/* disable us */
scheduler->sleep(get_thread(curr));
}
break;
}
case ATOMIC_NOTIFY_ALL: {
- action_list_t *waiters = get_safe_ptr_action(condvar_waiters_map, curr->get_location());
+ action_list_t *waiters = get_safe_ptr_action(&condvar_waiters_map, curr->get_location());
//activate all the waiting threads
for (action_list_t::iterator rit = waiters->begin(); rit != waiters->end(); rit++) {
scheduler->wake(get_thread(*rit));
break;
}
case ATOMIC_NOTIFY_ONE: {
- action_list_t *waiters = get_safe_ptr_action(condvar_waiters_map, curr->get_location());
+ action_list_t *waiters = get_safe_ptr_action(&condvar_waiters_map, curr->get_location());
int wakeupthread = curr->get_node()->get_misc();
action_list_t::iterator it = waiters->begin();
advance(it, wakeupthread);
bool ModelExecution::promises_may_allow(const ModelAction *writer,
const ModelAction *reader) const
{
- if (promises->empty())
+ if (promises.empty())
return true;
- for(int i=promises->size()-1;i>=0;i--) {
- ModelAction *pr=(*promises)[i]->get_reader(0);
+ for (int i = promises.size() - 1; i >= 0; i--) {
+ ModelAction *pr = promises[i]->get_reader(0);
//reader is after promise...doesn't cross any promise
if (*reader > *pr)
return true;
if (promises_may_allow(curr, read)) {
add_future_value(curr, read);
} else {
- futurevalues->push_back(PendingFutureValue(curr, read));
+ futurevalues.push_back(PendingFutureValue(curr, read));
}
}
}
/* Check the pending future values */
- for (int i = (int)futurevalues->size() - 1; i >= 0; i--) {
- struct PendingFutureValue pfv = (*futurevalues)[i];
+ for (int i = (int)futurevalues.size() - 1; i >= 0; i--) {
+ struct PendingFutureValue pfv = futurevalues[i];
if (promises_may_allow(pfv.writer, pfv.reader)) {
add_future_value(pfv.writer, pfv.reader);
- futurevalues->erase(futurevalues->begin() + i);
+ futurevalues.erase(futurevalues.begin() + i);
}
}
add_thread(th);
th->set_creation(curr);
/* Promises can be satisfied by children */
- for (unsigned int i = 0; i < promises->size(); i++) {
- Promise *promise = (*promises)[i];
+ for (unsigned int i = 0; i < promises.size(); i++) {
+ Promise *promise = promises[i];
if (promise->thread_is_available(curr->get_tid()))
promise->add_thread(th->get_id());
}
}
th->complete();
/* Completed thread can't satisfy promises */
- for (unsigned int i = 0; i < promises->size(); i++) {
- Promise *promise = (*promises)[i];
+ for (unsigned int i = 0; i < promises.size(); i++) {
+ Promise *promise = promises[i];
if (promise->thread_is_available(th->get_id()))
if (promise->eliminate_thread(th->get_id()))
priv->failed_promise = true;
void ModelExecution::process_relseq_fixup(ModelAction *curr, work_queue_t *work_queue)
{
const ModelAction *write = curr->get_node()->get_relseq_break();
- struct release_seq *sequence = pending_rel_seqs->back();
- pending_rel_seqs->pop_back();
+ struct release_seq *sequence = pending_rel_seqs.back();
+ pending_rel_seqs.pop_back();
ASSERT(sequence);
ModelAction *acquire = sequence->acquire;
const ModelAction *rf = sequence->rf;
else if (newcurr->is_wait())
newcurr->get_node()->set_misc_max(2);
else if (newcurr->is_notify_one()) {
- newcurr->get_node()->set_misc_max(get_safe_ptr_action(condvar_waiters_map, newcurr->get_location())->size());
+ newcurr->get_node()->set_misc_max(get_safe_ptr_action(&condvar_waiters_map, newcurr->get_location())->size());
}
return true; /* This was a new ModelAction */
}
*/
void ModelExecution::thread_blocking_check_promises(Thread *blocker, Thread *waiting)
{
- for (unsigned int i = 0; i < promises->size(); i++) {
- Promise *promise = (*promises)[i];
+ for (unsigned int i = 0; i < promises.size(); i++) {
+ Promise *promise = promises[i];
if (!promise->thread_is_available(waiting->get_id()))
continue;
for (unsigned int j = 0; j < promise->get_num_readers(); j++) {
bool ModelExecution::promises_expired() const
{
- for (unsigned int i = 0; i < promises->size(); i++) {
- Promise *promise = (*promises)[i];
+ for (unsigned int i = 0; i < promises.size(); i++) {
+ Promise *promise = promises[i];
if (promise->get_expiration() < priv->used_sequence_numbers)
return true;
}
*/
bool ModelExecution::isfeasibleprefix() const
{
- return pending_rel_seqs->size() == 0 && is_feasible_prefix_ignore_relseq();
+ return pending_rel_seqs.size() == 0 && is_feasible_prefix_ignore_relseq();
}
/**
ptr += sprintf(ptr, "[bad sw ordering]");
if (promises_expired())
ptr += sprintf(ptr, "[promise expired]");
- if (promises->size() != 0)
+ if (promises.size() != 0)
ptr += sprintf(ptr, "[unresolved promise]");
if (ptr != buf)
model_print("%s: %s\n", prefix ? prefix : "Infeasible", buf);
*/
bool ModelExecution::is_feasible_prefix_ignore_relseq() const
{
- return !is_infeasible() && promises->size() == 0;
+ return !is_infeasible() && promises.size() == 0;
}
/**
if (!mo_graph->checkReachable(rf, other_rf))
return false;
- SnapVector<action_list_t> *thrd_lists = get_safe_ptr_vect_action(obj_thrd_map, curr->get_location());
+ SnapVector<action_list_t> *thrd_lists = obj_thrd_map.get(curr->get_location());
action_list_t *list = &(*thrd_lists)[id_to_int(curr->get_tid())];
action_list_t::reverse_iterator rit = list->rbegin();
ASSERT((*rit) == curr);
curr->get_node()->get_read_from_promise_size() <= 1)
return true;
- SnapVector<action_list_t> *thrd_lists = get_safe_ptr_vect_action(obj_thrd_map, curr->get_location());
+ SnapVector<action_list_t> *thrd_lists = obj_thrd_map.get(curr->get_location());
int tid = id_to_int(curr->get_tid());
ASSERT(tid < (int)thrd_lists->size());
action_list_t *list = &(*thrd_lists)[tid];
template <typename rf_type>
bool ModelExecution::r_modification_order(ModelAction *curr, const rf_type *rf)
{
- SnapVector<action_list_t> *thrd_lists = get_safe_ptr_vect_action(obj_thrd_map, curr->get_location());
+ SnapVector<action_list_t> *thrd_lists = obj_thrd_map.get(curr->get_location());
unsigned int i;
bool added = false;
ASSERT(curr->is_read());
* All compatible, thread-exclusive promises must be ordered after any
* concrete loads from the same thread
*/
- for (unsigned int i = 0; i < promises->size(); i++)
- if ((*promises)[i]->is_compatible_exclusive(curr))
- added = mo_graph->addEdge(rf, (*promises)[i]) || added;
+ for (unsigned int i = 0; i < promises.size(); i++)
+ if (promises[i]->is_compatible_exclusive(curr))
+ added = mo_graph->addEdge(rf, promises[i]) || added;
return added;
}
*/
bool ModelExecution::w_modification_order(ModelAction *curr, ModelVector<ModelAction *> *send_fv)
{
- SnapVector<action_list_t> *thrd_lists = get_safe_ptr_vect_action(obj_thrd_map, curr->get_location());
+ SnapVector<action_list_t> *thrd_lists = obj_thrd_map.get(curr->get_location());
unsigned int i;
bool added = false;
ASSERT(curr->is_write());
* concrete stores to the same thread, or else they can be merged with
* this store later
*/
- for (unsigned int i = 0; i < promises->size(); i++)
- if ((*promises)[i]->is_compatible_exclusive(curr))
- added = mo_graph->addEdge(curr, (*promises)[i]) || added;
+ for (unsigned int i = 0; i < promises.size(); i++)
+ if (promises[i]->is_compatible_exclusive(curr))
+ added = mo_graph->addEdge(curr, promises[i]) || added;
return added;
}
*/
bool ModelExecution::mo_may_allow(const ModelAction *writer, const ModelAction *reader)
{
- SnapVector<action_list_t> *thrd_lists = get_safe_ptr_vect_action(obj_thrd_map, reader->get_location());
+ SnapVector<action_list_t> *thrd_lists = obj_thrd_map.get(reader->get_location());
unsigned int i;
/* Iterate over all threads */
for (i = 0; i < thrd_lists->size(); i++) {
release_heads->push_back(fence_release);
int tid = id_to_int(rf->get_tid());
- SnapVector<action_list_t> *thrd_lists = get_safe_ptr_vect_action(obj_thrd_map, rf->get_location());
+ SnapVector<action_list_t> *thrd_lists = obj_thrd_map.get(rf->get_location());
action_list_t *list = &(*thrd_lists)[tid];
action_list_t::const_reverse_iterator rit;
if (!release_seq_heads(rf, release_heads, sequence)) {
/* add act to 'lazy checking' list */
- pending_rel_seqs->push_back(sequence);
+ pending_rel_seqs.push_back(sequence);
} else {
snapshot_free(sequence);
}
bool ModelExecution::resolve_release_sequences(void *location, work_queue_t *work_queue)
{
bool updated = false;
- SnapVector<struct release_seq *>::iterator it = pending_rel_seqs->begin();
- while (it != pending_rel_seqs->end()) {
+ SnapVector<struct release_seq *>::iterator it = pending_rel_seqs.begin();
+ while (it != pending_rel_seqs.end()) {
struct release_seq *pending = *it;
ModelAction *acquire = pending->acquire;
const ModelAction *read = pending->read;
}
}
if (complete) {
- it = pending_rel_seqs->erase(it);
+ it = pending_rel_seqs.erase(it);
snapshot_free(pending);
} else {
it++;
if (uninit)
action_trace->push_front(uninit);
- SnapVector<action_list_t> *vec = get_safe_ptr_vect_action(obj_thrd_map, act->get_location());
+ SnapVector<action_list_t> *vec = get_safe_ptr_vect_action(&obj_thrd_map, act->get_location());
if (tid >= (int)vec->size())
vec->resize(priv->next_thread_id);
(*vec)[tid].push_back(act);
if (uninit)
(*vec)[uninit_id].push_front(uninit);
- if ((int)thrd_last_action->size() <= tid)
- thrd_last_action->resize(get_num_threads());
- (*thrd_last_action)[tid] = act;
+ if ((int)thrd_last_action.size() <= tid)
+ thrd_last_action.resize(get_num_threads());
+ thrd_last_action[tid] = act;
if (uninit)
- (*thrd_last_action)[uninit_id] = uninit;
+ thrd_last_action[uninit_id] = uninit;
if (act->is_fence() && act->is_release()) {
- if ((int)thrd_last_fence_release->size() <= tid)
- thrd_last_fence_release->resize(get_num_threads());
- (*thrd_last_fence_release)[tid] = act;
+ if ((int)thrd_last_fence_release.size() <= tid)
+ thrd_last_fence_release.resize(get_num_threads());
+ thrd_last_fence_release[tid] = act;
}
if (act->is_wait()) {
void *mutex_loc = (void *) act->get_value();
get_safe_ptr_action(obj_map, mutex_loc)->push_back(act);
- SnapVector<action_list_t> *vec = get_safe_ptr_vect_action(obj_thrd_map, mutex_loc);
+ SnapVector<action_list_t> *vec = get_safe_ptr_vect_action(&obj_thrd_map, mutex_loc);
if (tid >= (int)vec->size())
vec->resize(priv->next_thread_id);
(*vec)[tid].push_back(act);
ModelAction * ModelExecution::get_last_action(thread_id_t tid) const
{
int threadid = id_to_int(tid);
- if (threadid < (int)thrd_last_action->size())
- return (*thrd_last_action)[id_to_int(tid)];
+ if (threadid < (int)thrd_last_action.size())
+ return thrd_last_action[id_to_int(tid)];
else
return NULL;
}
ModelAction * ModelExecution::get_last_fence_release(thread_id_t tid) const
{
int threadid = id_to_int(tid);
- if (threadid < (int)thrd_last_fence_release->size())
- return (*thrd_last_fence_release)[id_to_int(tid)];
+ if (threadid < (int)thrd_last_fence_release.size())
+ return thrd_last_fence_release[id_to_int(tid)];
else
return NULL;
}
*/
Promise * ModelExecution::pop_promise_to_resolve(const ModelAction *curr)
{
- for (unsigned int i = 0; i < promises->size(); i++)
+ for (unsigned int i = 0; i < promises.size(); i++)
if (curr->get_node()->get_promise(i)) {
- Promise *ret = (*promises)[i];
- promises->erase(promises->begin() + i);
+ Promise *ret = promises[i];
+ promises.erase(promises.begin() + i);
return ret;
}
return NULL;
*/
void ModelExecution::compute_promises(ModelAction *curr)
{
- for (unsigned int i = 0; i < promises->size(); i++) {
- Promise *promise = (*promises)[i];
+ for (unsigned int i = 0; i < promises.size(); i++) {
+ Promise *promise = promises[i];
if (!promise->is_compatible(curr) || !promise->same_value(curr))
continue;
/** Checks promises in response to change in ClockVector Threads. */
void ModelExecution::check_promises(thread_id_t tid, ClockVector *old_cv, ClockVector *merge_cv)
{
- for (unsigned int i = 0; i < promises->size(); i++) {
- Promise *promise = (*promises)[i];
+ for (unsigned int i = 0; i < promises.size(); i++) {
+ Promise *promise = promises[i];
if (!promise->thread_is_available(tid))
continue;
for (unsigned int j = 0; j < promise->get_num_readers(); j++) {
void ModelExecution::check_promises_thread_disabled()
{
- for (unsigned int i = 0; i < promises->size(); i++) {
- Promise *promise = (*promises)[i];
+ for (unsigned int i = 0; i < promises.size(); i++) {
+ Promise *promise = promises[i];
if (promise->has_failed()) {
priv->failed_promise = true;
return;
{
const ModelAction *write = is_read_check ? act->get_reads_from() : act;
- for (unsigned int i = 0; i < promises->size(); i++) {
- Promise *promise = (*promises)[i];
+ for (unsigned int i = 0; i < promises.size(); i++) {
+ Promise *promise = promises[i];
// Is this promise on the same location?
if (!promise->same_location(write))
*/
void ModelExecution::compute_relseq_breakwrites(ModelAction *curr)
{
- if (pending_rel_seqs->empty())
+ if (pending_rel_seqs.empty())
return;
- struct release_seq *pending = pending_rel_seqs->back();
+ struct release_seq *pending = pending_rel_seqs.back();
for (unsigned int i = 0; i < pending->writes.size(); i++) {
const ModelAction *write = pending->writes[i];
curr->get_node()->add_relseq_break(write);
*/
void ModelExecution::build_may_read_from(ModelAction *curr)
{
- SnapVector<action_list_t> *thrd_lists = get_safe_ptr_vect_action(obj_thrd_map, curr->get_location());
+ SnapVector<action_list_t> *thrd_lists = obj_thrd_map.get(curr->get_location());
unsigned int i;
ASSERT(curr->is_read());
}
/* Inherit existing, promised future values */
- for (i = 0; i < promises->size(); i++) {
- const Promise *promise = (*promises)[i];
+ for (i = 0; i < promises.size(); i++) {
+ const Promise *promise = promises[i];
const ModelAction *promise_read = promise->get_reader(0);
if (promise_read->same_var(curr)) {
/* Only add feasible future-values */
return act;
}
-static void print_list(action_list_t *list)
+static void print_list(const action_list_t *list)
{
- action_list_t::iterator it;
+ action_list_t::const_iterator it;
model_print("---------------------------------------------------------------------\n");
{
#if SUPPORT_MOD_ORDER_DUMP
char buffername[100];
- sprintf(buffername, "exec%04u", execution_number);
+ sprintf(buffername, "exec%04u", get_execution_number());
mo_graph->dumpGraphToFile(buffername);
- sprintf(buffername, "graph%04u", execution_number);
+ sprintf(buffername, "graph%04u", get_execution_number());
dumpGraph(buffername);
#endif
- model_print("Execution %d:", execution_number);
+ model_print("Execution %d:", get_execution_number());
if (isfeasibleprefix()) {
if (scheduler->all_threads_sleeping())
model_print(" SLEEP-SET REDUNDANT");
print_infeasibility(" INFEASIBLE");
print_list(action_trace);
model_print("\n");
- if (!promises->empty()) {
+ if (!promises.empty()) {
model_print("Pending promises:\n");
- for (unsigned int i = 0; i < promises->size(); i++) {
+ for (unsigned int i = 0; i < promises.size(); i++) {
model_print(" [P%u] ", i);
- (*promises)[i]->print();
+ promises[i]->print();
}
model_print("\n");
}
*/
void ModelExecution::add_thread(Thread *t)
{
- thread_map->put(id_to_int(t->get_id()), t);
+ thread_map.put(id_to_int(t->get_id()), t);
if (!t->is_model_thread())
scheduler->add_thread(t);
}
*/
Thread * ModelExecution::get_thread(thread_id_t tid) const
{
- return thread_map->get(id_to_int(tid));
+ return thread_map.get(id_to_int(tid));
}
/**
*/
int ModelExecution::get_promise_number(const Promise *promise) const
{
- for (unsigned int i = 0; i < promises->size(); i++)
- if ((*promises)[i] == promise)
+ for (unsigned int i = 0; i < promises.size(); i++)
+ if (promises[i] == promise)
return i;
/* Not found */
return -1;
*/
void ModelExecution::fixup_release_sequences()
{
- while (!pending_rel_seqs->empty() &&
+ while (!pending_rel_seqs.empty() &&
is_feasible_prefix_ignore_relseq() &&
!unrealizedraces.empty()) {
model_print("*** WARNING: release sequence fixup action "
"(%zu pending release seuqence(s)) ***\n",
- pending_rel_seqs->size());
+ pending_rel_seqs.size());
ModelAction *fixup = new ModelAction(MODEL_FIXUP_RELSEQ,
std::memory_order_seq_cst, NULL, VALUE_NONE,
model_thread);
projects / c11tester.git / blobdiff