C语言实现消息队列的通讯

double_link.h文件

 1 #include<stdio.h>
 2 #include<sys/types.h>
 3 #include<sys/ipc.h>
 4 #include<sys/msg.h>
 5 #include<stdio.h>
 6 #include<stdlib.h>
 7 struct DATA
 8 {
 9    int id;
10    char name[20];      
11 };
12 typedef struct student
13 {
14    struct DATA data;
15    struct student *prior;
16    struct student *next;
17 }STU,*Pstu;
18 struct msgbuf
19 {
20    long type;
21    struct DATA buf;
22 };
23 Pstu create_link(Pstu);
24 void show_link(Pstu);
25 void send_link(int,Pstu);
26 Pstu recv_link(int);

double_link.c文件

#include"double_link.h"
Pstu create_link(Pstu head)
{   
    Pstu temp=(Pstu)malloc(sizeof(STU));
    printf("please input id:");
    scanf("%d",&temp->data.id);
    printf("please input name:");
    scanf("%s",temp->data.name);
    if(head==NULL)
    {
        temp->next=NULL;
        temp->prior=NULL;
    }
    else
    {
        temp->next=head;
        temp->prior=NULL;
        head->prior=temp;
    }
    return temp;
}
void show_link(Pstu head)
{   
    printf("id\tname\n");
    while(head!=NULL)
    {
        printf("%d\t%s\n",head->data.id,head->data.name);
        head=head->next;
    }
}
void send_link(int fd,Pstu head)
{   
    struct msgbuf mb;
    while(head!=NULL)
    {
        mb.type=1;
        mb.buf=head->data;
        msgsnd(fd,&mb,sizeof(struct DATA),0);
        head=head->next;
    }
}
Pstu recv_link(int fd)
{
    Pstu head=NULL;
    struct msgbuf mb;
    while(msgrcv(fd,&mb,sizeof(struct DATA),1,IPC_NOWAIT)>0)
    {
        Pstu temp=(Pstu)malloc(sizeof(STU));
        if(head!=NULL)
        {
            head->prior=temp;
        }
        temp->next=head;
        temp->prior=NULL;
        head=temp;
        temp->data=mb.buf;
    }
    return head;
}

haxi.h文件

#include<stdio.h>
#include<sys/types.h>
#include<sys/ipc.h>
#include<sys/msg.h>
#include<stdio.h>
#include<stdlib.h>

typedef struct teacher
{
    int id;
    char name[20];
    struct teacher *next;
}tea,*Ptea;

struct msgbuf1
{
    long type;
    struct teacher buf;
};
int haxi(int id);
void create_haxi(int id,char *name,Ptea array[]);
void show_haxi(Ptea array[]);
void send_haxi(int msgid,Ptea array[]);
void recv_haxi(int msgid,Ptea array[]);

haxi.c文件

 1 #include<string.h>
 2 #include"haxi.h"
 3 
 4 int haxi(int id)
 5 {
 6     return id%5;
 7 }
 8 void create_haxi(int id,char *name,Ptea array[])
 9 {
10     int key=haxi(id);
11     Ptea temp=(Ptea)malloc(sizeof(tea));
12     temp->id=id;
13     strcpy(temp->name,name);
14     Ptea p=array[key];
15     if(p==NULL)
16         temp->next=NULL;
17     else
18         temp->next=p;
19     array[key]=temp;
20 }
21 void show_haxi(Ptea array[])
22 {
23     Ptea p;
24     for(int i=0;i<5;i++)
25     {
26         printf("第%d行\n",i);
27         p=array[i];
28         while(p!=NULL)
29         {
30             printf("%d\t%s\n",p->id,p->name);
31             p=p->next;
32         }
33     }
34 }
35 void send_haxi(int msgid,Ptea array[])
36 {
37     struct msgbuf1 mb;
38     Ptea p;
39     for(int i=0;i<5;i++)
40     {
41         p=array[i];
42         while(p!=NULL)
43         {
44             mb.type=2;
45             mb.buf=*p;
46             msgsnd(msgid,&mb,sizeof(struct teacher),0);
47             p=p->next;
48         }
49     }
50 }
51 void recv_haxi(int msgid,Ptea array[])
52 {
53     struct msgbuf1 mb;
54     Ptea temp;
55     int key;
56     while(msgrcv(msgid,&mb,sizeof(tea),2,IPC_NOWAIT)>0)
57     {
58         temp=(Ptea)malloc(sizeof(tea));
59         *temp=mb.buf;
60         key=haxi(temp->id);
61         if(array[key]==NULL)
62         {
63             temp->next=NULL;
64             array[key]=temp;
65         }
66         else
67         {
68             temp->next=array[key];
69             array[key]=temp;
70         }
71     }
72     return;
73 }

msgsend.c文件

 1 #include<sys/types.h>
 2 #include<sys/ipc.h>
 3 #include<sys/msg.h>
 4 #include"double_link.h"
 5 #include"haxi.h"
 6 int main()
 7 {
 8     int msgid;
 9     msgid=msgget(0x2000,IPC_CREAT | 0777);
10     Pstu head=NULL;
11     for(int i=0;i<5;i++)
12     {
13         head=create_link(head);
14     }
15     show_link(head);
16     send_link(msgid,head);
17     printf("send haxi\n");
18     int id;
19     char name[20];
20     Ptea array[5]={NULL};
21     for(int i=0;i<10;i++)
22     {
23         printf("input haxi id:");
24         scanf("%d",&id);
25         printf("input haxi name:");
26         scanf("%s",name);
27         create_haxi(id,name,array);
28     }
29     show_haxi(array);
30     send_haxi(msgid,array);
31 }

msgrecv.c文件

 1 #include<sys/types.h>
 2 #include<sys/ipc.h>
 3 #include<sys/msg.h>
 4 #include<stdio.h>
 5 #include"double_link.h"
 6 #include"haxi.h"
 7 int main()
 8 {
 9     int msgid;
10     msgid=msgget(0x2000,IPC_CREAT |0777);
11     //struct msgbuf mb;
12     //msgrcv(msgid,&mb,sizeof(struct msgbuf)-sizeof(long),1,0);
13     //puts(mb.buf);
14     Pstu head=recv_link(msgid);
15     show_link(head);
16 
17     Ptea array[5]={NULL};
18     recv_haxi(msgid,array);
19     show_haxi(array);
20     return 0;
21 }

gcc double_link.c haxi.c msgsend.c -o send

gcc double_link.c haxi.c msgrecv.c -o recv

双向链表和哈希表传输数据，效果如下：

posted @ 2017-10-13 19:17  时光淡了旧人心  阅读(4818)  评论(0)  编辑  收藏  举报