#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mylink.h"

void mylink_init(mylink *head)	//struct node **head = &head
{
	*head = NULL;
}

mylink make_node(char *item, int fd)
{
	mylink p = (mylink)malloc(sizeof(struct node));
	strcpy(p->item,item);		//(*p).itme = item;
    p->fifo_fd = fd;

	p->next = NULL;				//#define NULL (void *)0
	return p;
}

void mylink_insert(mylink *head, mylink p)		
{
	p->next = *head;
	*head = p;
}

mylink mylink_search(mylink *head, char *keyname)
{
	mylink p;
	for (p = *head; p != NULL; p = p->next)
		if (strcmp(p->item,keyname) == 0)
			return p;
	return NULL;
}

void mylink_delete(mylink *head, mylink q)
{
	mylink p;
    if (q == *head) {
		*head = q->next;
		return;
	}
	for (p = *head; p != NULL; p = p->next)
		if (p->next == q) {
			p->next = q->next;
			return;
		}
}

void free_node(mylink p)
{
	free(p);
}

void mylink_destory(mylink *head)
{
	mylink p= *head, q;
	while (p != NULL) {
		q = p->next;
		free(p);
		p = q;
	}
	*head = NULL;
}

void mylink_travel(mylink *head, void (*vist)(mylink))
{
	mylink p;
	for (p = *head; p != NULL; p = p->next)
		vist(p);
}