namespace actor {
class SimcallObserver {
- kernel::actor::ActorImpl* const issuer_;
+ ActorImpl* const issuer_;
public:
- explicit SimcallObserver(kernel::actor::ActorImpl* issuer) : issuer_(issuer) {}
- kernel::actor::ActorImpl* get_issuer() const { return issuer_; }
+ explicit SimcallObserver(ActorImpl* issuer) : issuer_(issuer) {}
+ ActorImpl* get_issuer() const { return issuer_; }
/** Whether this transition can currently be taken without blocking.
*
* For example, a mutex_lock is not enabled when the mutex is not free.
{ /* Nothing to do by default */
}
- /** Some simcalls may only be observable under some circumstances.
+ /** We need to save the observer of simcalls as they get executed to later compute their dependencies in classical
+ * DPOR */
+ virtual SimcallObserver* clone() = 0;
+
+ /** Computes the dependency relation */
+ virtual bool depends(SimcallObserver* other);
+
+ /** Some simcalls may only be observable under some conditions.
* Most simcalls are not visible from the MC because they don't have an observer at all. */
virtual bool is_visible() const { return true; }
virtual std::string to_string(int times_considered) const = 0;
virtual std::string dot_label() const = 0;
};
+template <class T> class ResultingSimcall : public SimcallObserver {
+ T result_;
+
+public:
+ ResultingSimcall(smx_actor_t actor, T default_result) : SimcallObserver(actor), result_(default_result) {}
+ void set_result(T res) { result_ = res; }
+ T get_result() const { return result_; }
+};
+
class RandomSimcall : public SimcallObserver {
const int min_;
const int max_;
public:
RandomSimcall(smx_actor_t actor, int min, int max) : SimcallObserver(actor), min_(min), max_(max) {}
+ SimcallObserver* clone() override
+ {
+ auto res = new RandomSimcall(get_issuer(), min_, max_);
+ res->next_value_ = next_value_;
+ return res;
+ }
int get_max_consider() const override;
void prepare(int times_considered) override;
std::string to_string(int times_considered) const override;
std::string dot_label() const override;
int get_value() const { return next_value_; }
+ bool depends(SimcallObserver* other) override;
};
-class MutexUnlockSimcall : public SimcallObserver {
- using SimcallObserver::SimcallObserver;
+class MutexSimcall : public SimcallObserver {
+ activity::MutexImpl* const mutex_;
public:
+ MutexSimcall(smx_actor_t actor, activity::MutexImpl* mutex) : SimcallObserver(actor), mutex_(mutex) {}
+ activity::MutexImpl* get_mutex() const { return mutex_; }
+ bool depends(SimcallObserver* other) override;
+};
+
+class MutexUnlockSimcall : public MutexSimcall {
+ using MutexSimcall::MutexSimcall;
+
+public:
+ SimcallObserver* clone() override { return new MutexUnlockSimcall(get_issuer(), get_mutex()); }
std::string to_string(int times_considered) const override;
std::string dot_label() const override;
};
-class MutexLockSimcall : public SimcallObserver {
- kernel::activity::MutexImpl* const mutex_;
+class MutexLockSimcall : public MutexSimcall {
const bool blocking_;
public:
- MutexLockSimcall(smx_actor_t actor, kernel::activity::MutexImpl* mutex, bool blocking = true)
- : SimcallObserver(actor), mutex_(mutex), blocking_(blocking)
+ MutexLockSimcall(smx_actor_t actor, activity::MutexImpl* mutex, bool blocking = true)
+ : MutexSimcall(actor, mutex), blocking_(blocking)
{
}
+ SimcallObserver* clone() override { return new MutexLockSimcall(get_issuer(), get_mutex(), blocking_); }
bool is_enabled() const override;
std::string to_string(int times_considered) const override;
std::string dot_label() const override;
- kernel::activity::MutexImpl* get_mutex() const { return mutex_; }
};
-class ConditionWaitSimcall : public SimcallObserver {
- friend kernel::activity::ConditionVariableImpl;
-
- kernel::activity::ConditionVariableImpl* const cond_;
- kernel::activity::MutexImpl* const mutex_;
+class ConditionWaitSimcall : public ResultingSimcall<bool> {
+ activity::ConditionVariableImpl* const cond_;
+ activity::MutexImpl* const mutex_;
const double timeout_;
- bool result_ = false; // default result for simcall, will be set to 'true' on timeout
-
- void set_result(bool res) { result_ = res; }
public:
- ConditionWaitSimcall(smx_actor_t actor, kernel::activity::ConditionVariableImpl* cond,
- kernel::activity::MutexImpl* mutex, double timeout = -1.0)
- : SimcallObserver(actor), cond_(cond), mutex_(mutex), timeout_(timeout)
+ ConditionWaitSimcall(smx_actor_t actor, activity::ConditionVariableImpl* cond, activity::MutexImpl* mutex,
+ double timeout = -1.0)
+ : ResultingSimcall(actor, false), cond_(cond), mutex_(mutex), timeout_(timeout)
{
}
+ SimcallObserver* clone() override { return new ConditionWaitSimcall(get_issuer(), cond_, mutex_, timeout_); }
bool is_enabled() const override;
bool is_visible() const override { return false; }
std::string to_string(int times_considered) const override;
std::string dot_label() const override;
- kernel::activity::ConditionVariableImpl* get_cond() const { return cond_; }
- kernel::activity::MutexImpl* get_mutex() const { return mutex_; }
+ activity::ConditionVariableImpl* get_cond() const { return cond_; }
+ activity::MutexImpl* get_mutex() const { return mutex_; }
double get_timeout() const { return timeout_; }
-
- bool get_result() const { return result_; }
};
-class SemAcquireSimcall : public SimcallObserver {
- friend kernel::activity::SemaphoreImpl;
-
- kernel::activity::SemaphoreImpl* const sem_;
+class SemAcquireSimcall : public ResultingSimcall<bool> {
+ activity::SemaphoreImpl* const sem_;
const double timeout_;
- bool result_ = false; // default result for simcall, will be set to 'true' on timeout
-
- void set_result(bool res) { result_ = res; }
public:
- SemAcquireSimcall(smx_actor_t actor, kernel::activity::SemaphoreImpl* sem, double timeout = -1.0)
- : SimcallObserver(actor), sem_(sem), timeout_(timeout)
+ SemAcquireSimcall(smx_actor_t actor, activity::SemaphoreImpl* sem, double timeout = -1.0)
+ : ResultingSimcall(actor, false), sem_(sem), timeout_(timeout)
{
}
+ SimcallObserver* clone() override { return new SemAcquireSimcall(get_issuer(), sem_, timeout_); }
bool is_enabled() const override;
bool is_visible() const override { return false; }
std::string to_string(int times_considered) const override;
std::string dot_label() const override;
- kernel::activity::SemaphoreImpl* get_sem() const { return sem_; }
+ activity::SemaphoreImpl* get_sem() const { return sem_; }
double get_timeout() const { return timeout_; }
-
- bool get_result() const { return result_; }
};
-class ExecutionWaitanySimcall : public SimcallObserver {
- friend kernel::activity::ExecImpl;
-
- const std::vector<kernel::activity::ExecImpl*>* const execs_;
+class ActivityWaitSimcall : public ResultingSimcall<bool> {
+ activity::ActivityImpl* const activity_;
const double timeout_;
- int result_ = -1; // default result for simcall
- void set_result(int res) { result_ = res; }
+public:
+ ActivityWaitSimcall(smx_actor_t actor, activity::ActivityImpl* activity, double timeout)
+ : ResultingSimcall(actor, false), activity_(activity), timeout_(timeout)
+ {
+ }
+ SimcallObserver* clone() override { return new ActivityWaitSimcall(get_issuer(), activity_, timeout_); }
+ bool is_visible() const override { return false; }
+ std::string to_string(int times_considered) const override { return SimcallObserver::to_string(times_considered); }
+ std::string dot_label() const override { return SimcallObserver::dot_label(); }
+ activity::ActivityImpl* get_activity() const { return activity_; }
+ double get_timeout() const { return timeout_; }
+};
+
+class ExecutionWaitanySimcall : public ResultingSimcall<ssize_t> {
+ const std::vector<activity::ExecImpl*>& execs_;
+ const double timeout_;
public:
- ExecutionWaitanySimcall(smx_actor_t actor, const std::vector<kernel::activity::ExecImpl*>* execs, double timeout)
- : SimcallObserver(actor), execs_(execs), timeout_(timeout)
+ ExecutionWaitanySimcall(smx_actor_t actor, const std::vector<activity::ExecImpl*>& execs, double timeout)
+ : ResultingSimcall(actor, -1), execs_(execs), timeout_(timeout)
{
}
+ SimcallObserver* clone() override { return new ExecutionWaitanySimcall(get_issuer(), execs_, timeout_); }
bool is_visible() const override { return false; }
std::string to_string(int times_considered) const override;
std::string dot_label() const override;
- const std::vector<kernel::activity::ExecImpl*>* get_execs() const { return execs_; }
+ const std::vector<activity::ExecImpl*>& get_execs() const { return execs_; }
double get_timeout() const { return timeout_; }
+};
- int get_result() const { return result_; }
+class IoWaitanySimcall : public ResultingSimcall<ssize_t> {
+ const std::vector<activity::IoImpl*>& ios_;
+ const double timeout_;
+
+public:
+ IoWaitanySimcall(smx_actor_t actor, const std::vector<activity::IoImpl*>& ios, double timeout)
+ : ResultingSimcall(actor, -1), ios_(ios), timeout_(timeout)
+ {
+ }
+ SimcallObserver* clone() override { return new IoWaitanySimcall(get_issuer(), ios_, timeout_); }
+ bool is_visible() const override { return false; }
+ std::string to_string(int times_considered) const override;
+ std::string dot_label() const override;
+ const std::vector<activity::IoImpl*>& get_ios() const { return ios_; }
+ double get_timeout() const { return timeout_; }
};
} // namespace actor
} // namespace kernel
