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/* * Header file for CS325 thread library * Copyright  2008 Anthony Martinez */#ifndef __LIBTHREAD_H#define __LIBTHREAD_H#include <stdlib.h>#include <setjmp.h>#define JMPBUF jmp->__jmpbuf#define EBX 0#define ESP 1#define EBP 2#define ESI 3#define EDI 4#define EIP 5#ifdef DEBUG#    define Dprintf(...) fprintf(stderr, __VA_ARGS__)#else#    define Dprintf(...)#endif#define new_thread_state() (thread_state_t*)calloc(1, sizeof(thread_state_t))#define THREAD_STACK_SIZE (10*1024)typedef struct thread_state {    struct thread_state *prev, *next;    unsigned int id;    unsigned int eax, ebx, ecx, edx;    unsigned int *esi, *edi, *ebp, *esp, *eip;} thread_state_t;typedef struct queue_head {    thread_state_t *head;    thread_state_t *tail;} queue_head_t;unsigned int  thread_create(void *function);void begin_threads(void);void thread_suspend(void);void thread_switch(unsigned int id); /* uh yield? */void thread_wakeup(unsigned int id);#ifdef DEBUG#    define ensure_queue(qq); if(!qq) { fprintf(stderr, "null queue in %s", __FUNCTION__); abort(); }#else#    define ensure_queue(qq);#endifvoid _enqueue(queue_head_t *q, thread_state_t *new);thread_state_t *_dequeue(queue_head_t *q);thread_state_t *_peek(queue_head_t *q);#endif /* __LIBTHREAD_H */