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Update lwt.h #2

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27 changes: 27 additions & 0 deletions lwt/lwt.h
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Original file line number Diff line number Diff line change
@@ -1,8 +1,35 @@
/* lwt.h
* Pradeep, Yang
*/

#ifndef __LWT_H__
#define __LWT_H__

/* data structures */
struct lwt_tcb{ //thread control block;
void* ip;
void* sp;
void* bp;
int id;
int parent;
int childrenCount;
lwt_status_t tcb_status;
};

typedef void* (*lwt_fn_t) (void *);
typedef struct lwt_tcb* lwt_t; //a pointer to tcb, use it as pthread_t
typedef enum{
LWT_INFO_NTHD_RUNNABLE=0,
LWT_INFO_NTHD_BLOCKED,
LWT_INFO_NTHD_ZOMBIES
}lwt_info_t;

typedef enum{
RUN=1,
WAIT,
READY,
COMPLETE
}lwt_status_t;

/*
* lightweight thread APIs.
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