threads.h

   1 #ifndef __THREADS_H__
   2 #define __THREADS_H__
   3
   4 #include <ucontext.h>
   5
   6 #include "libthreads.h"
   7
   8 #define THREAD_ID_T_NONE        -1
   9
  10 typedef enum thread_state {
  11         THREAD_CREATED,
  12         THREAD_RUNNING,
  13         THREAD_READY,
  14         THREAD_COMPLETED
  15 } thread_state;
  16
  17 class Thread {
  18 public:
  19         void * operator new(size_t size);
  20         void operator delete(void *ptr);
  21         Thread(thrd_t *t, void (*func)(), void *a);
  22         Thread(thrd_t *t);
  23         ~Thread();
  24         void complete();
  25         int swap(Thread *t);
  26
  27         thread_state get_state() { return state; }
  28         void set_state(thread_state s) { state = s; }
  29         thread_id_t get_id();
  30         thrd_t get_thrd_t() { return *user_thread; }
  31 private:
  32         int create_context();
  33
  34         void (*start_routine)();
  35         void *arg;
  36         ucontext_t context;
  37         void *stack;
  38         thrd_t *user_thread;
  39         thread_id_t id;
  40         thread_state state;
  41 };
  42
  43 Thread * thread_current();
  44
  45 static inline thread_id_t thrd_to_id(thrd_t t)
  46 {
  47         return t;
  48 }
  49
  50 #endif /* __THREADS_H__ */