threads.h

   1 #ifndef __THREADS_H__
   2 #define __THREADS_H__
   3
   4 #include <ucontext.h>
   5
   6 #include "libthreads.h"
   7
   8 typedef enum thread_state {
   9         THREAD_CREATED,
  10         THREAD_RUNNING,
  11         THREAD_READY,
  12         THREAD_COMPLETED
  13 } thread_state;
  14
  15 class Thread {
  16 public:
  17         Thread(thrd_t *t, void (*func)(), void *a);
  18         Thread(thrd_t *t);
  19         int swap(Thread *t);
  20         void dispose();
  21
  22         thread_state get_state() { return state; }
  23         void set_state(thread_state s) { state = s; }
  24         thread_id_t get_id();
  25         void set_id(thread_id_t i) { *user_thread = i; }
  26         thrd_t get_thrd_t() { return *user_thread; }
  27 private:
  28         int create_context();
  29
  30         void (*start_routine)();
  31         void *arg;
  32         ucontext_t context;
  33         void *stack;
  34         thrd_t *user_thread;
  35         thread_state state;
  36 };
  37
  38 Thread *thread_current();
  39
  40 static inline thread_id_t thrd_to_id(thrd_t t)
  41 {
  42         return t;
  43 }
  44
  45 #endif /* __THREADS_H__ */