[iphone][api][network]Socket使用
閒話...
最近回歸程式員，發現硬體設計可能不太適合我。發現程式員也許最辛苦的就是找如何使用api。在此提供sample code for socket.
introduction...
client端使用iphone, server端使用java。
Server端會計數client連了幾次，並回傳次數給client端。
Code...
client....
#import <CoreFoundation/CoreFoundation.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#import <CoreFoundation/CFSocket.h>
void dealWithData(CFSocketRef s, CFSocketCallBackType type, CFDataRef
address, const void *data, void *info)
{
/*
printf("received %d bytes from socket %d\n",
CFDataGetLength((CFDataRef)data), CFSocketGetNative(s));
*/
UInt8 buffer[100];
CFDataGetBytes((CFDataRef)data, CFRangeMake(0,CFDataGetLength((CFDataRef)data)),buffer);
printf("%s\n",(char*)buffer);
}
main ()
{
CFSocketRef s = CFSocketCreate(NULL, PF_INET, SOCK_STREAM, IPPROTO_TCP,
kCFSocketDataCallBack, dealWithData, NULL);
CFDataRef address, data;
struct sockaddr_in sin;
char message[] = "Insert message to send here.\n";
CFRunLoopSourceRef source;
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_port = htons(8880);
address = CFDataCreate(NULL, (char *)&sin, sizeof(sin));
data = CFDataCreate(NULL, message, sizeof(message));
CFSocketConnectToAddress(s, address, 0);
CFSocketSendData(s, NULL, data, 0);
CFRelease(address);
CFRelease(data);
source = CFSocketCreateRunLoopSource(NULL, s, 0);
CFRunLoopAddSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
CFRelease(source);
CFRelease(s);
CFRunLoopRun();
}
Server...
import java.io.*;
import java.net.Socket;
public class Servertest1_client{
public static int count = 0;
public void startCount(){
while(true){
try{
Socket socket = new Socket("localhost",8880);
socket.close();
}catch(IOException e){
System.out.println("Some error!!\n");
}
}
}
public static void main(String [] args){
Servertest1_client st = new Servertest1_client();
st.startCount();
}
}
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