#include <stdio.h>
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
-#include <vector>
+#include <stdlib.h>
#include "model.h"
#include "action.h"
#include "clockvector.h"
#include "common.h"
#include "threads-model.h"
-#include "nodestack.h"
+#include "wildcard.h"
#define ACTION_INITIAL_CLOCK 0
+/** @brief A special value to represent a successful trylock */
+#define VALUE_TRYSUCCESS 1
+
+/** @brief A special value to represent a failed trylock */
+#define VALUE_TRYFAILED 0
+
/**
* @brief Construct a new ModelAction
*
* (default), then a Thread is assigned according to the scheduler.
*/
ModelAction::ModelAction(action_type_t type, memory_order order, void *loc,
- uint64_t value, Thread *thread) :
+ uint64_t value, Thread *thread) :
+ location(loc),
+ position(NULL),
+ reads_from(NULL),
+ last_fence_release(NULL),
+ cv(NULL),
+ rf_cv(NULL),
+ trace_ref(NULL),
+ thrdmap_ref(NULL),
+ action_ref(NULL),
+ func_ref_count(0),
+ value(value),
+ type(type),
+ original_type(ATOMIC_NOP),
+ swap_flag(false),
+ order(order),
+ original_order(order),
+ seq_number(ACTION_INITIAL_CLOCK)
+{
+ /* References to NULL atomic variables can end up here */
+ ASSERT(loc || type == ATOMIC_FENCE || type == ATOMIC_NOP);
+
+ Thread *t = thread ? thread : thread_current();
+ this->tid = t!= NULL ? t->get_id() : -1;
+}
+
+
+/**
+ * @brief Construct a new ModelAction for sleep actions
+ *
+ * @param type The type of action: THREAD_SLEEP
+ * @param order The memory order of this action. A "don't care" for non-ATOMIC
+ * actions (e.g., THREAD_* or MODEL_* actions).
+ * @param loc The location that this action acts upon
+ * @param value The time duration a thread is scheduled to sleep.
+ * @param _time The this sleep action is constructed
+ */
+ModelAction::ModelAction(action_type_t type, memory_order order, uint64_t value, uint64_t _time) :
+ location(NULL),
+ position(NULL),
+ time(_time),
+ last_fence_release(NULL),
+ cv(NULL),
+ rf_cv(NULL),
+ trace_ref(NULL),
+ thrdmap_ref(NULL),
+ action_ref(NULL),
+ func_ref_count(0),
+ value(value),
type(type),
+ original_type(ATOMIC_NOP),
+ swap_flag(false),
order(order),
+ original_order(order),
+ seq_number(ACTION_INITIAL_CLOCK)
+{
+ Thread *t = thread_current();
+ this->tid = t!= NULL ? t->get_id() : -1;
+}
+
+/**
+ * @brief Construct a new ModelAction
+ *
+ * @param type The type of action
+ * @param order The memory order of this action. A "don't care" for non-ATOMIC
+ * actions (e.g., THREAD_* or MODEL_* actions).
+ * @param loc The location that this action acts upon
+ * @param value (optional) A value associated with the action (e.g., the value
+ * read or written). Defaults to a given macro constant, for debugging purposes.
+ * @param size (optional) The Thread in which this action occurred. If NULL
+ * (default), then a Thread is assigned according to the scheduler.
+ */
+ModelAction::ModelAction(action_type_t type, memory_order order, void *loc,
+ uint64_t value, int size) :
location(loc),
+ position(NULL),
+ reads_from(NULL),
+ last_fence_release(NULL),
+ cv(NULL),
+ rf_cv(NULL),
+ trace_ref(NULL),
+ thrdmap_ref(NULL),
+ action_ref(NULL),
+ func_ref_count(0),
value(value),
+ type(type),
+ original_type(ATOMIC_NOP),
+ swap_flag(false),
+ order(order),
+ original_order(order),
+ seq_number(ACTION_INITIAL_CLOCK)
+{
+ /* References to NULL atomic variables can end up here */
+ ASSERT(loc);
+ this->size = size;
+ Thread *t = thread_current();
+ this->tid = t->get_id();
+}
+
+
+/**
+ * @brief Construct a new ModelAction with source line number (requires llvm support)
+ *
+ * @param type The type of action
+ * @param order The memory order of this action. A "don't care" for non-ATOMIC
+ * actions (e.g., THREAD_* or MODEL_* actions).
+ * @param loc The location that this action acts upon
+ * @param value (optional) A value associated with the action (e.g., the value
+ * read or written). Defaults to a given macro constant, for debugging purposes.
+ * @param size (optional) The Thread in which this action occurred. If NULL
+ * (default), then a Thread is assigned according to the scheduler.
+ */
+ModelAction::ModelAction(action_type_t type, const char * position, memory_order order, void *loc,
+ uint64_t value, int size) :
+ location(loc),
+ position(position),
reads_from(NULL),
last_fence_release(NULL),
- node(NULL),
- seq_number(ACTION_INITIAL_CLOCK),
cv(NULL),
- sleep_flag(false)
+ rf_cv(NULL),
+ trace_ref(NULL),
+ thrdmap_ref(NULL),
+ action_ref(NULL),
+ func_ref_count(0),
+ value(value),
+ type(type),
+ original_type(ATOMIC_NOP),
+ swap_flag(false),
+ order(order),
+ original_order(order),
+ seq_number(ACTION_INITIAL_CLOCK)
{
/* References to NULL atomic variables can end up here */
- ASSERT(loc || type == ATOMIC_FENCE || type == MODEL_FIXUP_RELSEQ);
+ ASSERT(loc);
+ this->size = size;
+ Thread *t = thread_current();
+ this->tid = t->get_id();
+}
+
+
+/**
+ * @brief Construct a new ModelAction with source line number (requires llvm support)
+ *
+ * @param type The type of action
+ * @param position The source line number of this atomic operation
+ * @param order The memory order of this action. A "don't care" for non-ATOMIC
+ * actions (e.g., THREAD_* or MODEL_* actions).
+ * @param loc The location that this action acts upon
+ * @param value (optional) A value associated with the action (e.g., the value
+ * read or written). Defaults to a given macro constant, for debugging purposes.
+ * @param thread (optional) The Thread in which this action occurred. If NULL
+ * (default), then a Thread is assigned according to the scheduler.
+ */
+ModelAction::ModelAction(action_type_t type, const char * position, memory_order order,
+ void *loc, uint64_t value, Thread *thread) :
+ location(loc),
+ position(position),
+ reads_from(NULL),
+ last_fence_release(NULL),
+ cv(NULL),
+ rf_cv(NULL),
+ trace_ref(NULL),
+ thrdmap_ref(NULL),
+ action_ref(NULL),
+ func_ref_count(0),
+ value(value),
+ type(type),
+ original_type(ATOMIC_NOP),
+ swap_flag(false),
+ order(order),
+ original_order(order),
+ seq_number(ACTION_INITIAL_CLOCK)
+{
+ /* References to NULL atomic variables can end up here */
+ ASSERT(loc || type == ATOMIC_FENCE);
Thread *t = thread ? thread : thread_current();
this->tid = t->get_id();
}
+
/** @brief ModelAction destructor */
ModelAction::~ModelAction()
{
*/
/*
- if (cv)
- delete cv; */
+ if (cv)
+ delete cv; */
+}
+
+int ModelAction::getSize() const {
+ return size;
}
void ModelAction::copy_from_new(ModelAction *newaction)
void ModelAction::set_seq_number(modelclock_t num)
{
- /* ATOMIC_UNINIT actions should never have non-zero clock */
- ASSERT(!is_uninitialized());
ASSERT(seq_number == ACTION_INITIAL_CLOCK);
seq_number = num;
}
+void ModelAction::reset_seq_number()
+{
+ seq_number = 0;
+}
+
bool ModelAction::is_thread_start() const
{
return type == THREAD_START;
}
-bool ModelAction::is_relseq_fixup() const
+bool ModelAction::is_thread_join() const
{
- return type == MODEL_FIXUP_RELSEQ;
+ return type == THREAD_JOIN || type == PTHREAD_JOIN;
}
bool ModelAction::is_mutex_op() const
{
- return type == ATOMIC_LOCK || type == ATOMIC_TRYLOCK || type == ATOMIC_UNLOCK || type == ATOMIC_WAIT || type == ATOMIC_NOTIFY_ONE || type == ATOMIC_NOTIFY_ALL;
+ return type == ATOMIC_LOCK || type == ATOMIC_TRYLOCK || type == ATOMIC_UNLOCK || type == ATOMIC_WAIT || type == ATOMIC_TIMEDWAIT || type == ATOMIC_NOTIFY_ONE || type == ATOMIC_NOTIFY_ALL;
}
bool ModelAction::is_lock() const
return type == ATOMIC_LOCK;
}
+bool ModelAction::is_sleep() const
+{
+ return type == THREAD_SLEEP;
+}
+
bool ModelAction::is_wait() const {
- return type == ATOMIC_WAIT;
+ return type == ATOMIC_WAIT || type == ATOMIC_TIMEDWAIT;
}
bool ModelAction::is_notify() const {
- return type==ATOMIC_NOTIFY_ONE || type==ATOMIC_NOTIFY_ALL;
+ return type == ATOMIC_NOTIFY_ONE || type == ATOMIC_NOTIFY_ALL;
}
bool ModelAction::is_notify_one() const {
- return type==ATOMIC_NOTIFY_ONE;
+ return type == ATOMIC_NOTIFY_ONE;
}
bool ModelAction::is_unlock() const
return is_read() || could_be_write();
}
-bool ModelAction::is_uninitialized() const
+bool ModelAction::is_read() const
{
- return type == ATOMIC_UNINIT;
+ return type == ATOMIC_READ || type == ATOMIC_RMWR || type == ATOMIC_RMWRCAS || type == ATOMIC_RMW;
}
-bool ModelAction::is_read() const
+bool ModelAction::is_write() const
{
- return type == ATOMIC_READ || type == ATOMIC_RMWR || type == ATOMIC_RMW;
+ return type == ATOMIC_WRITE || type == ATOMIC_RMW || type == ATOMIC_INIT || type == NONATOMIC_WRITE;
}
-bool ModelAction::is_write() const
+bool ModelAction::is_create() const
+{
+ return type == THREAD_CREATE || type == PTHREAD_CREATE;
+}
+
+bool ModelAction::is_free() const
{
- return type == ATOMIC_WRITE || type == ATOMIC_RMW || type == ATOMIC_INIT || type == ATOMIC_UNINIT;
+ return type == READY_FREE;
}
bool ModelAction::could_be_write() const
return is_write() || is_rmwr();
}
+bool ModelAction::is_yield() const
+{
+ return type == THREAD_YIELD;
+}
+
bool ModelAction::is_rmwr() const
{
- return type == ATOMIC_RMWR;
+ return type == ATOMIC_RMWR || type == ATOMIC_RMWRCAS;
+}
+
+bool ModelAction::is_rmwrcas() const
+{
+ return type == ATOMIC_RMWRCAS;
}
bool ModelAction::is_rmw() const
return type == ATOMIC_RMWC;
}
-bool ModelAction::is_fence() const
+bool ModelAction::is_fence() const
{
return type == ATOMIC_FENCE;
}
return type == ATOMIC_INIT;
}
+bool ModelAction::is_annotation() const
+{
+ return type == ATOMIC_ANNOTATION;
+}
+
bool ModelAction::is_relaxed() const
{
return order == std::memory_order_relaxed;
bool ModelAction::is_seqcst() const
{
- return order==std::memory_order_seq_cst;
+ return order == std::memory_order_seq_cst;
}
bool ModelAction::same_var(const ModelAction *act) const
{
- if ( act->is_wait() || is_wait() ) {
- if ( act->is_wait() && is_wait() ) {
- if ( ((void *)value) == ((void *)act->value) )
+ if (act->is_wait() || is_wait()) {
+ if (act->is_wait() && is_wait()) {
+ if (((void *)value) == ((void *)act->value))
return true;
- } else if ( is_wait() ) {
- if ( ((void *)value) == act->location )
+ } else if (is_wait()) {
+ if (((void *)value) == act->location)
return true;
- } else if ( act->is_wait() ) {
- if ( location == ((void *)act->value) )
+ } else if (act->is_wait()) {
+ if (location == ((void *)act->value))
return true;
}
}
return tid == act->tid;
}
-void ModelAction::copy_typeandorder(ModelAction * act) {
+void ModelAction::copy_typeandorder(ModelAction * act)
+{
this->type = act->type;
this->order = act->order;
}
-/** 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.
+/**
+ * Get the Thread which is the operand of this action. This is only valid for
+ * THREAD_* operations (currently only for THREAD_CREATE and THREAD_JOIN). Note
+ * that this provides a central place for determining the conventions of Thread
+ * storage in ModelAction, where we generally aren't very type-safe (e.g., we
+ * store object references in a (void *) address.
+ *
+ * For THREAD_CREATE, this yields the Thread which is created.
+ * For THREAD_JOIN, this yields the Thread we are joining with.
+ *
+ * @return The Thread which this action acts on, if exists; otherwise NULL
+ */
+Thread * ModelAction::get_thread_operand() const
+{
+ if (type == THREAD_CREATE) {
+ /* thread_operand is set in execution.cc */
+ return thread_operand;
+ } else if (type == PTHREAD_CREATE) {
+ return thread_operand;
+ } else if (type == THREAD_JOIN) {
+ /* THREAD_JOIN uses (Thread *) for location */
+ return (Thread *)get_location();
+ } else if (type == PTHREAD_JOIN) {
+ // return NULL;
+ // thread_operand is stored in execution::pthread_map;
+ return (Thread *)get_location();
+ } else
+ return NULL;
+}
+
+/**
+ * @brief Convert the read portion of an RMW
+ *
+ * Changes an existing read part of an RMW action into either:
+ * -# a full RMW action in case of the completed write or
+ * -# a READ action in case a failed action.
+ *
* @todo If the memory_order changes, we may potentially need to update our
* clock vector.
+ *
+ * @param act The second half of the RMW (either RMWC or RMW)
*/
-void ModelAction::process_rmw(ModelAction * act) {
- this->order=act->order;
+void ModelAction::process_rmw(ModelAction *act)
+{
+ this->order = act->order;
if (act->is_rmwc())
- this->type=ATOMIC_READ;
+ this->type = ATOMIC_READ;
else if (act->is_rmw()) {
- this->type=ATOMIC_RMW;
- this->value=act->value;
+ this->type = ATOMIC_RMW;
+ this->value = act->value;
}
}
-/** The is_synchronizing method should only explore interleavings if:
- * (1) the operations are seq_cst and don't commute or
- * (2) the reordering may establish or break a synchronization relation.
- * Other memory operations will be dealt with by using the reads_from
- * relation.
+/**
+ * @brief Check if this action should be backtracked with another, due to
+ * potential synchronization
+ *
+ * The is_synchronizing method should only explore interleavings if:
+ * -# the operations are seq_cst and don't commute or
+ * -# the reordering may establish or break a synchronization relation.
+ *
+ * Other memory operations will be dealt with by using the reads_from relation.
*
- * @param act is the action to consider exploring a reordering.
- * @return tells whether we have to explore a reordering.
+ * @param act The action to consider exploring a reordering
+ * @return True, if we have to explore a reordering; otherwise false
*/
bool ModelAction::could_synchronize_with(const ModelAction *act) const
{
return false;
// Different locations commute
- if (!same_var(act))
+ if (!same_var(act) && !is_fence() && !act->is_fence())
return false;
// Explore interleavings of seqcst writes/fences to guarantee total
// order of seq_cst operations that don't commute
- if ((could_be_write() || act->could_be_write() || is_fence() || act->is_fence())
- && is_seqcst() && act->is_seqcst())
+ if ((could_be_write() || act->could_be_write() || is_fence() || act->is_fence()) && is_seqcst() && act->is_seqcst())
return true;
- // Explore synchronizing read/write/fence pairs
- if (is_acquire() && act->is_release() && (is_read() || is_fence()) &&
- (act->could_be_write() || act->is_fence()))
+ // Explore synchronizing read/write pairs
+ if (is_acquire() && act->is_release() && is_read() && act->could_be_write())
return true;
// lock just released...we can grab lock
- if ((is_lock() ||is_trylock()) && (act->is_unlock()||act->is_wait()))
+ if ((is_lock() || is_trylock()) && (act->is_unlock() || act->is_wait()))
return true;
// lock just acquired...we can fail to grab lock
return true;
// other thread stalling on lock...we can release lock
- if (is_unlock() && (act->is_trylock()||act->is_lock()))
+ if (is_unlock() && (act->is_trylock() || act->is_lock()))
return true;
- if (is_trylock() && (act->is_unlock()||act->is_wait()))
+ if (is_trylock() && (act->is_unlock() || act->is_wait()))
return true;
- if ( is_notify() && act->is_wait() )
+ if (is_notify() && act->is_wait())
return true;
- if ( is_wait() && act->is_notify() )
+ if (is_wait() && act->is_notify())
return true;
// Otherwise handle by reads_from relation
// 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;
cv = new ClockVector(NULL, this);
}
-void ModelAction::set_try_lock(bool obtainedlock) {
- if (obtainedlock)
- value=VALUE_TRYSUCCESS;
- else
- value=VALUE_TRYFAILED;
+void ModelAction::set_try_lock(bool obtainedlock)
+{
+ value = obtainedlock ? VALUE_TRYSUCCESS : VALUE_TRYFAILED;
+}
+
+/**
+ * @brief Get the value read by this load
+ *
+ * We differentiate this function from ModelAction::get_write_value and
+ * ModelAction::get_value for the purpose of RMW's, which may have both a
+ * 'read' and a 'write' value.
+ *
+ * Note: 'this' must be a load.
+ *
+ * @return The value read by this load
+ */
+uint64_t ModelAction::get_reads_from_value() const
+{
+ ASSERT(is_read());
+ if (reads_from)
+ return reads_from->get_write_value();
+
+ return VALUE_NONE; // Only for new actions with no reads-from
+}
+
+/**
+ * @brief Get the value written by this store
+ *
+ * We differentiate this function from ModelAction::get_reads_from_value and
+ * ModelAction::get_value for the purpose of RMW's, which may have both a
+ * 'read' and a 'write' value.
+ *
+ * Note: 'this' must be a store.
+ *
+ * @return The value written by this store
+ */
+uint64_t ModelAction::get_write_value() const
+{
+ ASSERT(is_write());
+ return value;
}
-/** @return The Node associated with this ModelAction */
-Node * ModelAction::get_node() const
+/**
+ * @brief Get the value returned by this action
+ *
+ * For atomic reads (including RMW), an operation returns the value it read.
+ * For atomic writes, an operation returns the value it wrote. For other
+ * operations, the return value varies (sometimes is a "don't care"), but the
+ * value is simply stored in the "value" field.
+ *
+ * @return This action's return value
+ */
+uint64_t ModelAction::get_return_value() const
{
- /* UNINIT actions do not have a Node */
- ASSERT(!is_uninitialized());
- return node;
+ if (is_read())
+ return get_reads_from_value();
+ else if (is_write())
+ return get_write_value();
+ else
+ return value;
}
/**
* Update the model action's read_from action
* @param act The action to read from; should be a write
*/
-void ModelAction::set_read_from(const ModelAction *act)
+void ModelAction::set_read_from(ModelAction *act)
{
+ ASSERT(act);
+
reads_from = act;
- if (act && act->is_uninitialized())
- model->assert_bug("May read from uninitialized atomic\n");
}
/**
* @param act The ModelAction to synchronize with
* @return True if this is a valid synchronization; false otherwise
*/
-bool ModelAction::synchronize_with(const ModelAction *act) {
- if (*this < *act && type != THREAD_JOIN && type != ATOMIC_LOCK)
+bool ModelAction::synchronize_with(const ModelAction *act)
+{
+ if (*this < *act)
return false;
- model->check_promises(act->get_tid(), cv, act->cv);
cv->merge(act->cv);
return true;
}
return act->cv->synchronized_since(this);
}
-/** @brief Print nicely-formatted info about this ModelAction */
-void ModelAction::print() const
+const char * ModelAction::get_type_str() const
{
- const char *type_str, *mo_str;
switch (this->type) {
- case MODEL_FIXUP_RELSEQ:
- type_str = "relseq fixup";
- break;
- case THREAD_CREATE:
- type_str = "thread create";
- break;
- case THREAD_START:
- type_str = "thread start";
- break;
- case THREAD_YIELD:
- type_str = "thread yield";
- break;
- case THREAD_JOIN:
- type_str = "thread join";
- break;
- case THREAD_FINISH:
- type_str = "thread finish";
- break;
- case ATOMIC_UNINIT:
- type_str = "uninitialized";
- break;
- case ATOMIC_READ:
- type_str = "atomic read";
- break;
- case ATOMIC_WRITE:
- type_str = "atomic write";
- 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_RMWC:
- type_str = "atomic rmwc";
- 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;
- case ATOMIC_WAIT:
- type_str = "wait";
- break;
- case ATOMIC_NOTIFY_ONE:
- type_str = "notify one";
- break;
- case ATOMIC_NOTIFY_ALL:
- type_str = "notify all";
- break;
- default:
- type_str = "unknown type";
- }
-
- uint64_t valuetoprint;
- if (type == ATOMIC_READ && reads_from != NULL)
- valuetoprint = reads_from->value;
- else
- valuetoprint = value;
-
+ case THREAD_CREATE: return "thread create";
+ case THREAD_START: return "thread start";
+ case THREAD_YIELD: return "thread yield";
+ case THREAD_JOIN: return "thread join";
+ case THREAD_FINISH: return "thread finish";
+ case THREAD_SLEEP: return "thread sleep";
+ case THREADONLY_FINISH: return "pthread_exit finish";
+
+ case PTHREAD_CREATE: return "pthread create";
+ case PTHREAD_JOIN: return "pthread join";
+
+ case NONATOMIC_WRITE: return "nonatomic write";
+ case ATOMIC_READ: return "atomic read";
+ case ATOMIC_WRITE: return "atomic write";
+ case ATOMIC_RMW: return "atomic rmw";
+ case ATOMIC_FENCE: return "fence";
+ case ATOMIC_RMWR: return "atomic rmwr";
+ case ATOMIC_RMWRCAS: return "atomic rmwrcas";
+ case ATOMIC_RMWC: return "atomic rmwc";
+ case ATOMIC_INIT: return "init atomic";
+ case ATOMIC_LOCK: return "lock";
+ case ATOMIC_UNLOCK: return "unlock";
+ case ATOMIC_TRYLOCK: return "trylock";
+ case ATOMIC_WAIT: return "wait";
+ case ATOMIC_TIMEDWAIT: return "timed wait";
+ case ATOMIC_NOTIFY_ONE: return "notify one";
+ case ATOMIC_NOTIFY_ALL: return "notify all";
+ case ATOMIC_ANNOTATION: return "annotation";
+ default: return "unknown type";
+ };
+}
+
+const char * ModelAction::get_mo_str() const
+{
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;
+ case std::memory_order_relaxed: return "relaxed";
+ case std::memory_order_acquire: return "acquire";
+ case std::memory_order_release: return "release";
+ case std::memory_order_acq_rel: return "acq_rel";
+ case std::memory_order_seq_cst: return "seq_cst";
+ default: return "unknown";
}
+}
+
+/** @brief Print nicely-formatted info about this ModelAction */
+void ModelAction::print() const
+{
+ const char *type_str = get_type_str(), *mo_str = get_mo_str();
- model_print("(%4d) Thread: %-2d Action: %-13s MO: %7s Loc: %14p Value: %-#18" PRIx64,
- seq_number, id_to_int(tid), type_str, mo_str, location, valuetoprint);
+ model_print("%-4d %-2d %-14s %7s %14p %-#18" PRIx64,
+ seq_number, id_to_int(tid), type_str, mo_str, location, get_return_value());
if (is_read()) {
if (reads_from)
- model_print(" Rf: %-3d", reads_from->get_seq_number());
+ model_print(" %-3d", reads_from->get_seq_number());
else
- model_print(" Rf: ? ");
+ model_print(" ? ");
}
if (cv) {
if (is_read())
model_print(" ");
else
- model_print(" ");
+ model_print(" ");
cv->print();
} else
model_print("\n");
}
-/** @brief Print nicely-formatted info about this ModelAction */
+/** @brief Get a (likely) unique hash for this ModelAction */
unsigned int ModelAction::hash() const
{
- unsigned int hash=(unsigned int) this->type;
- hash^=((unsigned int)this->order)<<3;
- hash^=seq_number<<5;
+ unsigned int hash = (unsigned int)this->type;
+ hash ^= ((unsigned int)this->order) << 3;
+ hash ^= seq_number << 5;
hash ^= id_to_int(tid) << 6;
if (is_read()) {
if (reads_from)
- hash^=reads_from->get_seq_number();
+ hash ^= reads_from->get_seq_number();
+ hash ^= get_reads_from_value();
}
return hash;
}
+
+/**
+ * Only valid for LOCK, TRY_LOCK, UNLOCK, and WAIT operations.
+ * @return The mutex operated on by this action, if any; otherwise NULL
+ */
+cdsc::mutex * ModelAction::get_mutex() const
+{
+ if (is_trylock() || is_lock() || is_unlock())
+ return (cdsc::mutex *)get_location();
+ else if (is_wait())
+ return (cdsc::mutex *)get_value();
+ else
+ return NULL;
+}
+
+/** @brief Swap type with original type */
+void ModelAction::use_original_type()
+{
+ action_type_t tmp = type;
+ type = original_type;
+ original_type = tmp;
+
+ if (swap_flag)
+ swap_flag = false;
+ else
+ swap_flag = true;
+}
projects / c11tester.git / blobdiff