#include "mymemory.h"
#include "libthreads.h"
-
-typedef int thread_id_t;
-
-#define THREAD_ID_T_NONE -1
+#include "modeltypes.h"
/** @brief Represents the state of a user Thread */
typedef enum thread_state {
/** @brief A Thread is created for each user-space thread */
class Thread {
public:
+ Thread(thread_id_t tid);
Thread(thrd_t *t, void (*func)(void *), void *a);
~Thread();
void complete();
*/
void push_wait_list(ModelAction *act) { wait_list.push_back(act); }
+ unsigned int num_wait_list() {
+ return wait_list.size();
+ }
+
+ ModelAction * get_waiter(unsigned int i) {
+ return wait_list[i];
+ }
+
ModelAction * get_pending() { return pending; }
void set_pending(ModelAction *act) { pending = act; }
/**
return ret;
}
+ bool is_model_thread() { return model_thread; }
+
friend void thread_startup();
- SNAPSHOTALLOC
+ /**
+ * Intentionally NOT allocated with MODELALLOC or SNAPSHOTALLOC.
+ * Threads should be allocated on the user's normal (snapshotting) heap
+ * to allow their allocation/deallocation to follow the same pattern as
+ * the rest of the backtracked/replayed program.
+ */
private:
int create_context();
Thread *parent;
* list is used for thread joins, where another Thread waits for this
* Thread to complete
*/
- std::vector<ModelAction *> wait_list;
+ std::vector< ModelAction *, SnapshotAlloc<ModelAction *> > wait_list;
/**
* The value returned by the last action in this thread
* @see Thread::get_return_value()
*/
uint64_t last_action_val;
+
+ /** @brief Is this Thread a special model-checker thread? */
+ const bool model_thread;
};
Thread * thread_current();