// 主函数-用于测试
int main() {
// 初始化链表
linkList list = initLinkList();
// 插入三个元素
inserts(&list, 333);
inserts(&list, 222);
inserts(&list, 2222);
// 遍历链表
lists(&list);
// 求列表中元素个数
printf("size = %d\n", list.size);
// 获取列表中的元素
printf("value = %d\n", getElement(&list, 0));
printf("value = %d\n", getElement(&list, 1));
printf("value = %d\n", getElement(&list, 2));
// 删除列表中的元素
deletes(&list, 2);
printf("value = %d\n", getElement(&list, 0));
printf("value = %d\n", getElement(&list, 1));
// 查看最终列表中元素个数
printf("size = %d\n", list.size);
}
/*-----------------------------------------------------------------------*/
void main()
{
int a;
clrscr();
inserts(a);
inserts(a);
inserts(a);
inserts(a);
inserts(a);
inserts(a);
display();
deletes();
display();
deletes();
display();
deletes();
display();
inserts(a);
inserts(a);
display();
getch();
}
main()
{
struct quefr *que;
int x,cord;
void Outlin(struct quefr qq);
void creat(struct quefr *qe);
void insert(struct quefr *p,ElemType x);
ElemType deletes(struct quefr *qe);
do
{
printf("\n");
printf(" 主菜单 \n");
printf(" 1 建立链表队列 \n");
printf(" 2 入队一个元素 \n");
printf(" 3 出队一个元素 \n");
printf(" 4 结束程序运行 \n");
printf("-------------------------------\n");
printf("请输入您的选择(1, 2, 3, 4) ");
scanf("%d",&cord);
switch(cord)
{
case 1:
{
que=(struct quefr *)malloc(sizeof(struct quefr));
creat(que);
Outlin(*que);
}break;
case 2:
{
printf("x=?");
scanf("%d",&x);
insert(que,x);
Outlin(*que);
}break;
case 3:
{
printf("x=%d\n",deletes(que));
Outlin(*que);
}break;
case 4:
{
exit (0);
}
}
}while (cord<=4);
}
main(void)
{
int ch,e,pos,temp=0,ct=1,end=FALSE;
list = NULL;
LINK *x;
LINK *p;
// Creating a Header Node (Info part contains number of elements) //
// List points to Header Node //
p = getnode();
p->info = 0;
p->right = p;
p->left = p;
list = p;
while(1)
{
system("cls");
printf("\n\n\nHeader Doubly Circular Linked List Implementation Using Dynamic Variables\n\n");
printf("1. Insert Elements\n");
printf("2. Delete Elements\n");
printf("3. Display Elements\n");
printf("4. Exit\n\n");
printf("Enter Choice:");
scanf("%d",&ch);
switch(ch)
{
case 1:
printf("\nEnter Element:");
scanf("%d",&e);
if(emptys())
pushs(e);
else
{
printf("\nEnter Element Position:");
scanf("%d",&pos);
if(pos>count+1 || pos<=0)
printf("\nIncorrect Position!");
else
inserts(e,pos);
fflush(stdin);
getchar();
}
break;
case 2:
ct=1;
if(emptys())
{
printf("\nUnderflow!");
fflush(stdin);
getchar();
}
else
{
printf("\nEnter Element to Delete:");
scanf("%d",&e);
x=list;
while(end == FALSE) // only 1 condition required since LL always contains Header Node
{
x = x->right;
if(x->info==e)
{
if(x!=list->right) // list.next is first node
temp = deletes(x); // Previous Node //
else
temp=pops();
printf("\n%d Deleted at Position %d !",temp, ct);
}
if(x->right==list)
{
x=list;
end = TRUE;
}
ct++;
}
end = FALSE;
if(x==list && temp==0)
printf("\nElement Does Not Exist");
fflush(stdin);
getchar();
}
break;
case 3:
x = list->right;
if(!emptys())
printf("\nLinked List(Number of Nodes:%d):",list->info);
while(end==FALSE && !emptys())
{
printf("%d->",x->info);
x = x->right;
if(x==list)
end = TRUE;
}
end = FALSE;
if(emptys())
printf("\nLinked List Empty!");
fflush(stdin);
getchar();
break;
case 4:
exit(0); // returning 0 means successful
}
}
}
int main(int argc, char *argv[]){
struct sockaddr_in server;
int new_sock, server_sock = -1;
int addrlen;
char command[128], buf[128];
if (argc != 2) {
(void) fprintf(stderr,"usage: %s port# \n",argv[0]);
exit(1);
}
portnum = atoi(argv[1]);
// Create a Server Socket
if((server_sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0){
perror("socket");
exit(1);
}
memset((void*)&server, 0, sizeof(server));
server.sin_family = AF_INET;
server.sin_addr.s_addr = INADDR_ANY;
server.sin_port = htons((u_short)atoi(argv[1]));
if(bind(server_sock, (struct sockaddr *)&server, sizeof server) < 0) {
perror("bind");
exit(1);
}
if(listen(server_sock, SOMAXCONN) < 0) {
perror("listen");
exit(1);
}
//
//
//
while(1){
// Input from the keyboard
memset(command, 0x00, sizeof command);
addrlen = sizeof server;
new_sock = accept(server_sock,
(struct sockaddr *)&server,
(socklen_t *)&addrlen);
if (new_sock < 0) {
perror("accept");
exit(1);
}
printf("connection : Host IP %s, Port %d, socket %d\n",
inet_ntoa(server.sin_addr), ntohs(server.sin_port), new_sock);
read(new_sock, command, sizeof command); // read user command
printf("%s", command);
if(!strncmp(command, "@quit", 5)){ // quit
memset(buf, 0x00, sizeof(buf));
strcat(buf, "@delete ");
strcat(buf, inet_ntoa(server.sin_addr));
strcat(buf, " ");
strcat(buf, toArray(ntohs(server.sin_port)));
struct node* delNode = find(inet_ntoa(server.sin_addr), ntohs(server.sin_port));
int roomNum = delNode->room;
delNode->room = 0;
current = head;
while(current != NULL){
if(current->room == roomNum)
connectToClient(current->IP, toArray(current->port), buf);
current = current->next;
}
}
else if(!strncmp(command, "@exit", 5)){ // exit
memset(buf, 0x00, sizeof(buf));
strcat(buf, "@delete ");
strcat(buf, inet_ntoa(server.sin_addr));
strcat(buf, " ");
strcat(buf, toArray(ntohs(server.sin_port)));
strcat(buf, "\n");
int roomNum = find(inet_ntoa(server.sin_addr), ntohs(server.sin_port))->room;
deletes(inet_ntoa(server.sin_addr), ntohs(server.sin_port));
if(roomNum != 0){
current = head;
while(current != NULL){
if(current->room == roomNum)
connectToClient(current->IP, toArray(current->port), buf);
current = current->next;
}
}
}
else if(!strncmp(command, "@connect", 8)){ // connect
insertFirst(inet_ntoa(server.sin_addr), ntohs(server.sin_port), &command[9], 0);
printf("%s is connected\n", &command[9]);
if (write(new_sock, "connection ok", strlen("connection ok")) < 0) {
perror("write");
exit(1);
}
}
else if(!strncmp(command, "@getlist", 8)){ // user & room list
memset(buf, 0x00, sizeof(buf));
for(int i=0; i<room_size; i++){
if(i == 0){
strcat(buf, "\n==========waiting room ");
strcat(buf, "==========\n");
}
else{
strcat(buf, "==========room# ");
strcat(buf, toArray(i));
strcat(buf, "==========\n");
}
current = head;
while(current != NULL){
if(current->room == i){
strcat(buf, current->IP);
strcat(buf, " ");
strcat(buf, toArray(current->port));
strcat(buf, " ");
strcat(buf, current->ID);
strcat(buf, "\n");
}
current = current->next;
}
}
if (write(new_sock, buf, strlen(buf)) < 0) {
perror("write");
exit(1);
}
}
else if(!strncmp(command, "@mkroom", 7)){ // mkroom
room_size++;
memset(buf, 0x00, sizeof(buf));
strcat(buf, "room ");
strcat(buf, toArray(room_size));
strcat(buf, " is created\n");
if (write(new_sock, buf, strlen(buf)) < 0) {
perror("write");
exit(1);
}
}
else if(!strncmp(command, "@join", 5)){ // join
int roomNum = atoi(&command[6]);
memset(buf, 0x00, sizeof(buf));
strcat(buf, "@add ");
strcat(buf, inet_ntoa(server.sin_addr));
strcat(buf, " ");
strcat(buf, toArray(ntohs(server.sin_port)));
strcat(buf, "\n");
char join[1024];
memset(join, 0x00, sizeof(join));
strcat(join, "@join\n");
int i = 0;
current = head;
while(current != NULL){
if(strcmp(toArray(ntohs(server.sin_port)), toArray(current->port)) && current->room == roomNum){
connectToClient(current->IP, toArray(current->port), buf);
strcat(join, current->IP);
strcat(join, " ");
strcat(join, toArray(current->port));
strcat(join, " ");
strcat(join, current->ID);
strcat(join, "\n");
}
current = current->next;
}
if (write(new_sock, join, strlen(join)) < 0) {
perror("write");
exit(1);
}
find(inet_ntoa(server.sin_addr), ntohs(server.sin_port))->room = atoi(&command[6]);
printf("room to %d\n", atoi(&command[6]));
printf("room to %d\n", atoi(&command[6]));
}
}
}// main
main()
{
int x,y,cord;
void outlin(struct node *h);
void create();
void insert(struct node *h,int x,int y);
void deletes(struct node *h,int x);
struct node *MaxCompare(struct node *h);
struct node *MinCompare(struct node *h);
int delIterance(struct node *h);
void batchInsert(struct node *h,int x);
void batchDelete(struct node *h,int x,int y);
void Cz(struct node* h);
void Xg(struct node * h);
printf("建立链表，输入-999完成链表: \n");
create();
i=j;
outlin(head);
do{
printf("\n 主菜单 \n");
printf(" 1 插入一个元素 \n");
printf(" 2 删除一个元素 \n");
printf(" 3 升序排序 \n");
printf(" 4 降序排序 \n");
printf(" 5 查找元素 \n");
printf(" 6 修改元素 \n");
printf(" 7 删除重复元素 \n");
printf(" 8 批量加入元素 \n");
printf(" 9 批量删除元素 \n");
printf(" 0 结束程序运行 \n");
printf("-----------------------------------------\n");
printf(" 请输入您的选择(1, 2, 3, 4, 5, 6, 7, 8, 9, 0) ");
scanf("%d",&cord);
switch(cord)
{
case 1:
{
printf("请输入插入的位置 i: ");
scanf("%d",&x);
printf("请输入插入的数据 y: ");
scanf("%d",&y);
insert(head,x,y);
i=j;
outlin(head);
}break;
case 2:
{
printf("x=?");
scanf("%d",&x);
deletes(head,x);
i=j;
outlin(head);
}break;
case 3:
{
printf("链表由大到小是");
s=MaxCompare(head);
j=i;
outlin(s);
//outlin(head);
}break;
case 4:
{
printf("链表由大到小是");
s=MinCompare(head);
j=i;
outlin(s);
}break;
case 5:
{
Cz(head);
outlin(head);
}break;
case 6:
{
Xg(head);
outlin(head);
}break;
case 7:
{
k=delIterance(head);
i=i-k;
j=i;
outlin(head);
}break;
case 8:
{
printf("请输入插入的位置 i: ");
scanf("%d",&x);
batchInsert(head,x);
i=j;
outlin(head);
}break;
case 9:
{
printf("请输入删除的起始位置 i: ");
scanf("%d",&x);
printf("请输入删除的结束位置 y: ");
scanf("%d",&y);
batchDelete(head,x,y);
i=j;
outlin(head);
}break;
case 0:
{
exit(0);
}break;
}
}while(cord<=9&&cord>=0);
}
main(void)
{
int ch,e,pos,temp=0,ct=1;
LINK *x;
LINK *y;
list=NULL;
while(1)
{
system("cls");
printf("\n\n\nDoubly Linked List Implementation Using Dynamic Variables\n\n");
printf("1. Insert Elements\n");
printf("2. Delete Elements\n");
printf("3. Display Elements\n");
printf("4. Exit\n\n");
printf("Enter Choice:");
scanf("%d",&ch);
switch(ch)
{
case 1:
printf("\nEnter Element:");
scanf("%d",&e);
if(emptys())
pushs(e);
else
{
printf("\nEnter Element Position:");
scanf("%d",&pos);
if(pos>count+1 || pos<=0)
printf("\nIncorrect Position!");
else
inserts(e,pos);
fflush(stdin);
getchar();
}
break;
case 2:
ct=1;
if(emptys())
{
printf("\nUnderflow!");
fflush(stdin);
getchar();
}
else
{
printf("\nEnter Element to Delete:");
scanf("%d",&e);
x=list;
while(x!=NULL)
{
if(x->info==e)
{
if(x!=list)
temp = deletes(x); // Current Node //
else
temp = pops();
printf("\n%d Deleted at Position %d !",temp, ct);
}
x=x->right;
ct++;
}
if(x==NULL && temp==0)
printf("\nElement Does Not Exist");
fflush(stdin);
getchar();
}
break;
case 3:
x = list;
if(list!=NULL)
printf("\nLinked List:");
while(x!=NULL)
{
printf("%d->",x->info);
x = x->right;
}
if(list==NULL)
printf("\nLinked List Empty!");
fflush(stdin);
getchar();
break;
case 4:
exit(0); // returning 0 means successful
}
}
}
int main()
{
deletes();
return ;
}
int main(int argc, char **argv) {
// 매개변수 1:자기포트 2:서버IP 3:서버포트 4:자기ID
int tcpServ_sock;
struct sockaddr_in tcpServer_addr;
struct sockaddr_in newTcp_addr;
fd_set reads, temps;
int fd_max;
char command[1024];
if(argc != 5){
printf("Usage : %s <myport> <serverIP> <serverport> <myID>\n", argv[0]);
exit(1);
}
display();
if ((tcpServ_sock = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
perror("socket");
exit(1);
}// creating socket descriptor for tcp
memset((void *) &tcpServer_addr, 0, sizeof (tcpServer_addr));
tcpServer_addr.sin_family = AF_INET;
tcpServer_addr.sin_addr.s_addr = INADDR_ANY;
tcpServer_addr.sin_port = htons((u_short)atoi(argv[1])); // portnum
fd_max = 10;
if (bind(tcpServ_sock, (struct sockaddr *)&tcpServer_addr, sizeof (tcpServer_addr)) < 0) {
perror("bind error");
exit(1);
} // bind
if (listen(tcpServ_sock, SOMAXCONN) < 0) {
perror("listen");
exit(1);
} // wait connect
// 여기까지 기본 소켓세팅
hostIP = argv[2]; // ip
hostport = argv[3]; // port numbere
myID = argv[4];
char buf[1024];
strcat(buf, "@connect ");
strcat(buf, myID);
//peertcpSockets = connectToServer(buf);
peertcpSockets = connectToServer(buf);
FD_ZERO(&reads);
FD_SET(fileno(stdin), &reads);
FD_SET(tcpServ_sock, &reads);
FD_SET(peertcpSockets, &reads);
while(1){
int nfound;
temps = reads;
nfound = select(fd_max+1, &temps, 0, 0, NULL);
// nfound?
if(FD_ISSET(fileno(stdin), &temps)) {
// Input from the keyboard
char sendhttp[1024];
memset(sendhttp, NULL, sizeof(sendhttp));
fgets(command, sizeof (command), stdin);
if( command[0] == '@' ){
// send to server
if(command[1] == 'e'){ // when exit
head = NULL;
peertcpSockets = connectToServer(command);
close(peertcpSocket);
exit(1);
}
peertcpSockets = connectToServer(command);
FD_SET(peertcpSockets, &reads);
// exit했을때는 나에게 들어있는 유저목록 다 지워야한다.
}else{
node* cnode = head;
char sendmsg[1024];
strcat(sendmsg, myID);
strcat(sendmsg, ") ");
strcat(sendmsg, command);
while(cnode != NULL){
peertcpSockets = connectToClient(head->IP, toArray(head->port), sendmsg);
close(peertcpSockets);
cnode = cnode->next;
} // 유저에게 메시지 전송
close(peertcpSocket);
}
fflush(stdin);
}else if(FD_ISSET(tcpServ_sock, &temps)){
int addrlen;
addrlen = sizeof(newTcp_addr);
peertcpSockets = accept(tcpServ_sock, (struct sockaddr *)&newTcp_addr, (unsigned int*)&addrlen);
//printf("connection from host %s, port %d, socket %d\n\n",
// inet_ntoa(newTcp_addr.sin_addr), ntohs(newTcp_addr.sin_port), peertcpSocket);
if (peertcpSockets < 0) {
perror("accept");
exit(1);
}
FD_SET(peertcpSockets, &reads);
// make connection
}else if(FD_ISSET(peertcpSockets, &temps)){ // 서버에서 응답받은 내용
char buf[1024];
memset(buf, NULL, sizeof(buf));
read(peertcpSockets, buf, sizeof(buf));
char tbuf[1024];
strcpy(tbuf, buf);
char* inif = strtok(tbuf, "\n");
if(!strcmp(touppers(inif),"JOIN")){
char* temp;
temp = strtok(buf, "\n");
printf("%s\n", temp); // 입력받은 첫줄 출력
while((temp = strtok(NULL, "\n")) != NULL){
char* tempIP = strtok(temp, " ");
char* tempPort = strtok(NULL, " ");
int tport = atoi(tempPort);
char* tempID = strtok(NULL, " ");
insertFirst(tempIP, tport, tempID, 0);
}
close(peertcpSockets);
}else if(!strcmp(touppers(inif),"INVITE OK")){
printf("%s\n", inif);
char* temp;
temp = strtok(NULL, "\n");
char* tempIP = strtok(temp, " ");
char* tempPort = strtok(NULL, " ");
char* tempID = strtok(NULL, " ");
printf("invite %s\n", tempID);
int tport = atoi(tempPort);
insertFirst(tempIP, tport, tempID, 0);
close(peertcpSockets);
// invite에 성공했다면 그사람을 저장한다.
}else if(!strcmp(touppers(inif),"@ADD")){
printf("%s\n", inif);
char* tempIP = strtok(NULL, " ");
char* tempPort = strtok(NULL, " ");
char* tempID = strtok(NULL, " ");
int tport = atoi(tempPort);
insertFirst(tempIP, tport, tempID, 0);
close(peertcpSockets);
// close 소켓 서버에서?유저에서?
}else if(!strcmp(touppers(inif),"@DELETE")){
printf("%s\n", inif);
char* tempIP = strtok(NULL, " ");
char* tempPort = strtok(NULL, " ");
int tport = atoi(tempPort);
deletes(tempIP, tport);
close(peertcpSockets);
}else{
printf("%s\n",buf); // print receive msg
close(peertcpSockets);
//FD_CLR(peertcpSockets, &reads);
}
buf[0] = '\0';
printf("> ");
}// receive
fflush(stdout);
}
}//main End