//
// ViewController.m
// stream_test
//
// Created by wup on 15/7/14.
// Copyright (c) 2015年 wup. All rights reserved.
//
#import "ViewController.h"
@interface ViewController () <NSStreamDelegate,NSCopying>
{
NSInputStream *_input;
NSOutputStream *_output;
}
@end
@implementation ViewController
static ViewController *instance = nil;
+ (ViewController *)shareinstance
{
@synchronized(self)
{
if (!instance) {
instance = [[self alloc] init];
return instance;
}
}
return instance;
}
+(instancetype)allocWithZone:(struct _NSZone *)zone
{
@synchronized(self){
if (!instance) {
instance = [super allocWithZone:zone];
return instance;
}
}
return instance;
}
-(id)copyWithZone:(NSZone *)zone
{
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
NSString *connHost = @"127.0.0.1";
CFReadStreamRef readstream;
CFWriteStreamRef writestream;
CFStreamCreatePairWithSocketToHost(NULL, (__bridge CFStringRef)(connHost), 50000, &readstream, &writestream);
_input = (__bridge NSInputStream *)(readstream);
_output = (__bridge NSOutputStream *)(writestream);
_input.delegate = self;
_output.delegate = self;
// 添加到主运行循环
[_input scheduleInRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
[_output scheduleInRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
// 打开流传输
[_input open];
[_output open];
}
-(void)stream:(NSStream *)aStream handleEvent:(NSStreamEvent)eventCode
{
//stream事件
// NSStreamEventNone = 0,
// NSStreamEventOpenCompleted = 1UL << 0, 流打开完毕
// NSStreamEventHasBytesAvailable = 1UL << 1, 有字节读取
// NSStreamEventHasSpaceAvailable = 1UL << 2, 可以发送
// NSStreamEventErrorOccurred = 1UL << 3, 发生错误
// NSStreamEventEndEncountered = 1UL << 4 链接断开
//
switch (eventCode) {
case NSStreamEventOpenCompleted:
NSLog(@"%@ NSStreamEventOpenCompleted",aStream);
break;
case NSStreamEventHasBytesAvailable:
NSLog(@"%@ NSStreamEventHasBytesAvailable",aStream);
[self readdata];
break;
case NSStreamEventHasSpaceAvailable:
NSLog(@"%@ NSStreamEventHasSpaceAvailable",aStream);
break;
case NSStreamEventErrorOccurred:
NSLog(@"%@ NSStreamEventErrorOccurred",aStream);
break;
case NSStreamEventEndEncountered:
NSLog(@"%@ NSStreamEventEndEncountered",aStream);
[_input close];
[_output close];
break;
default:
break;
}
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[self writeData];
}
-(void)writeData
{
NSString *msgstr = @"nihao!\r\n";
NSData *msgdata = [msgstr dataUsingEncoding:NSUTF8StringEncoding];
[_output write:msgdata.bytes maxLength:msgdata.length];
}
-(void)readdata
{
uint8_t buf[2048];
NSInteger buffint = [_input read:buf maxLength:sizeof(buf)];
NSData *msgdata = [NSData dataWithBytes:buf length:buffint];
NSString *recstr = [[NSString alloc] initWithData:msgdata encoding:NSUTF8StringEncoding];
NSLog(@"%@",recstr);
}
@end
