#ifndef __THREADS_MODEL_H__
#define __THREADS_MODEL_H__
-#include <ucontext.h>
#include <stdint.h>
-#include <vector>
-
#include "mymemory.h"
-#include <threads.h>
+#include "threads.h"
#include "modeltypes.h"
+#include "stl-model.h"
+#include "context.h"
+#include "classlist.h"
+#include "pthread.h"
struct thread_params {
thrd_start_t func;
*/
THREAD_BLOCKED,
/** Thread has completed its execution */
- THREAD_COMPLETED
+ THREAD_COMPLETED,
+ THREAD_FREED
} thread_state;
-class ModelAction;
/** @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 * parent_thrd = NULL);
+ Thread(thread_id_t tid, thrd_t *t, void (*func)(void *), void *a, Thread *parent);
+ Thread(thread_id_t tid, thrd_t *t, void *(*func)(void *), void *a, Thread *parent);
+
~Thread();
void complete();
+ void freeResources();
static int swap(ucontext_t *ctxt, Thread *t);
static int swap(Thread *t, ucontext_t *ctxt);
+ static int swap(Thread *t, Thread *t2);
thread_state get_state() const { return state; }
void set_state(thread_state s);
*/
uint64_t get_return_value() const { return last_action_val; }
+ /** @set and get the return value from pthread functions */
+ void set_pthread_return(void *ret) { pthread_return = ret; }
+ void * get_pthread_return() { return pthread_return; }
+
/** @return True if this thread is finished executing */
- bool is_complete() const { return state == THREAD_COMPLETED; }
+ bool is_complete() const { return state == THREAD_COMPLETED || state == THREAD_FREED; }
+
+ /** @return True if this thread has finished and its resources have been freed */
+ bool is_freed() const { return state == THREAD_FREED; }
/** @return True if this thread is blocked */
bool is_blocked() const { return state == THREAD_BLOCKED; }
- /** @return True if no threads are waiting on this Thread */
- bool wait_list_empty() const { return wait_list.empty(); }
-
- /**
- * Add a ModelAction to the waiting list for this thread.
- * @param t The ModelAction to add. Must be a JOIN.
- */
- void push_wait_list(ModelAction *act) { wait_list.push_back(act); }
-
- unsigned int num_wait_list() const {
- return wait_list.size();
- }
-
- ModelAction * get_waiter(unsigned int i) const {
- return wait_list[i];
- }
-
/** @return The pending (next) ModelAction for this Thread
* @see Thread::pending */
ModelAction * get_pending() const { return pending; }
* @see Thread::pending */
void set_pending(ModelAction *act) { pending = act; }
- /**
- * Remove one ModelAction from the waiting list
- * @return The ModelAction that was removed from the waiting list
- */
- ModelAction * pop_wait_list() {
- ModelAction *ret = wait_list.front();
- wait_list.pop_back();
- return ret;
- }
+ bool just_woken_up() { return wakeup_state; }
+ void set_wakeup_state(bool state) { wakeup_state = state; }
+
+ Thread * waiting_on() const;
+ bool is_waiting_on(const Thread *t) const;
bool is_model_thread() const { return model_thread; }
+ void * get_stack_addr() { return stack; }
+ ClockVector * get_acq_fence_cv() { return acq_fence_cv; }
+
friend void thread_startup();
+#ifdef TLS
+ friend void setup_context();
+ friend void * helper_thread(void *);
+ friend void finalize_helper_thread();
+#endif
/**
* Intentionally NOT allocated with MODELALLOC or SNAPSHOTALLOC.
* to allow their allocation/deallocation to follow the same pattern as
* the rest of the backtracked/replayed program.
*/
+ void * operator new(size_t size) {
+ return Thread_malloc(size);
+ }
+ void operator delete(void *p, size_t size) {
+ Thread_free(p);
+ }
+ void * operator new[](size_t size) {
+ return Thread_malloc(size);
+ }
+ void operator delete[](void *p, size_t size) {
+ Thread_free(p);
+ }
+#ifdef TLS
+ void setTLS(char *_tls) { tls = _tls;}
+#endif
private:
int create_context();
/** @brief The parent Thread which created this Thread */
- Thread *parent;
+ Thread * const parent;
+
+ /** @brief Acquire fence cv */
+ ClockVector *acq_fence_cv;
/** @brief The THREAD_CREATE ModelAction which created this Thread */
ModelAction *creation;
*/
ModelAction *pending;
+ /** @brief True if this thread was just woken up */
+ bool wakeup_state;
+
void (*start_routine)(void *);
+ void *(*pstart_routine)(void *);
+
void *arg;
ucontext_t context;
void *stack;
+ uint32_t stack_size;
+#ifdef TLS
+ void * helper_stack;
+public:
+ char *tls;
+ ucontext_t helpercontext;
+ pthread_mutex_t mutex;
+ pthread_mutex_t mutex2;
+ pthread_t thread;
+private:
+#endif
thrd_t *user_thread;
thread_id_t id;
thread_state state;
- /**
- * A list of ModelActions waiting on this Thread. Particularly, this
- * list is used for thread joins, where another Thread waits for this
- * Thread to complete
- */
- std::vector< ModelAction *, SnapshotAlloc<ModelAction *> > wait_list;
-
/**
* The value returned by the last action in this thread
* @see Thread::set_return_value()
*/
uint64_t last_action_val;
+ /** the value return from pthread functions */
+ void * pthread_return;
+
/** @brief Is this Thread a special model-checker thread? */
const bool model_thread;
};
+#ifdef TLS
+uintptr_t get_tls_addr();
+void tlsdestructor(void *v);
+#endif
+
Thread * thread_current();
+thread_id_t thread_current_id();
+void thread_startup();
+void initMainThread();
static inline thread_id_t thrd_to_id(thrd_t t)
{
return id;
}
-#endif /* __THREADS_MODEL_H__ */
+int real_pthread_mutex_init(pthread_mutex_t *__mutex, const pthread_mutexattr_t *__mutexattr);
+int real_pthread_mutex_lock (pthread_mutex_t *__mutex);
+int real_pthread_mutex_unlock (pthread_mutex_t *__mutex);
+int real_pthread_create (pthread_t *__restrict __newthread, const pthread_attr_t *__restrict __attr, void *(*__start_routine)(void *), void *__restrict __arg);
+int real_pthread_join (pthread_t __th, void ** __thread_return);
+void real_pthread_exit (void * value_ptr) __attribute__((noreturn));
+void real_init_all();
+
+#endif /* __THREADS_MODEL_H__ */
projects / c11tester.git / blobdiff