myThread
//
// myThread.h
// myTask
//
// Created by user on 12-4-9.
// Copyright (c) 2012年 __MyCompanyName__. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface myThread : NSObject{
int a;
NSLock *lock;
NSDictionary *dicData;
int tickets;
int count;
NSThread* ticketsThreadone;
NSThread* ticketsThreadtwo;
NSCondition* ticketsCondition;
}
-(void) doSomeThing;
-(myThread * ) myInit;
-(void)aMethodFun;
+(void)aMethod:(void *)paraSelf;
-(void)writeFile:(NSString *)file;
-(NSString *)readFile;
-(void) text;
-(void) readText;
-(void) rwFile;
-(void) wDouble;
-(void) openfile;
@end
//
// myThread.m
// myTask
//
// Created by user on 12-4-9.
// Copyright (c) 2012年 __MyCompanyName__. All rights reserved.
//
#import "myThread.h"
@implementation myThread
-(myThread * ) myInit{
self = [super init];
if(self) {
tickets = 100;
count = 0;
// 锁对象
ticketsCondition = [[NSCondition alloc] init];
ticketsThreadone = [[NSThread alloc] initWithTarget:self selector:@selector(run) object:nil];
[ticketsThreadone setName:@"Thread-1"];
[ticketsThreadone start];
ticketsThreadtwo = [[NSThread alloc] initWithTarget:self selector:@selector(run) object:nil];
[ticketsThreadtwo setName:@"Thread-2"];
[ticketsThreadtwo start];
//[NSThread detachNewThreadSelector:@selector(run) toTarget:self withObject:nil];
// Override point for customization after application launch
lock = [[NSLock alloc] init];
NSString *fileName = [self readFile];
NSLog(@"%@", fileName);
[self openfile];
[self wDouble];
[self rwFile];
[self readText];
[self writeFile:fileName];
[self doSomeThing];
[self text];
for(int x=0;x<50;++x)
{
[lock lock];
printf("Main thread says x is %i\n",x);
sleep(1);
printf("Main thread lets go %i\n",x);
[lock unlock];
sleep(1);
}
}
return self;
}
-(void) doSomeThing{
[NSThread detachNewThreadSelector:@selector(aMethod:) toTarget:[myThread class] withObject:self];
return ;
}
-(void)aMethodFun
{
a = 10;
int x = 10;
}
+(void)aMethod:(void *)paraSelf{
//a = 10;
myThread *pMyThread = (myThread *)paraSelf;
[pMyThread aMethodFun];
int x;
for(x=0;x<50;++x)
{
printf("Object Thread says x is %i\n",x);
usleep(1);
}
}
-(void)writeFile:(NSString *)file
{
//创建文件管理器
NSFileManager *fileManager = [NSFileManager defaultManager];
//获取路径
//参数NSDocumentDirectory要获取那种路径
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];//去处需要的路径
//更改到待操作的目录下
[fileManager changeCurrentDirectoryPath:[documentsDirectory stringByExpandingTildeInPath]];
//创建文件fileName文件名称，contents文件的内容，如果开始没有内容可以设置为nil，attributes文件的属性，初始为nil
//获取文件路径
[fileManager removeItemAtPath:@"data2" error:nil];
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"data2"];
//创建数据缓冲
NSMutableData *writer = [[NSMutableData alloc] init];
//将字符串添加到缓冲中
[writer appendData:[file dataUsingEncoding:NSUTF8StringEncoding]];
//将其他数据添加到缓冲中
//将缓冲的数据写入到文件中
[writer writeToFile:path atomically:YES];
[writer release];
}
-(NSString *)readFile
{
NSString *string1 = [[NSString alloc] initWithContentsOfFile: @"/text/1.txt"];
NSLog(@"%@" ,string1);
//创建文件管理器
NSFileManager *fileManager = [NSFileManager defaultManager];
//获取路径
//参数NSDocumentDirectory要获取那种路径
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];//去处需要的路径
//更改到待操作的目录下
[fileManager changeCurrentDirectoryPath:[documentsDirectory stringByExpandingTildeInPath]];
//获取文件路径
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"data"];
NSData *reader = [NSData dataWithContentsOfFile:path];
return [[NSString alloc] initWithData:reader
encoding:NSUTF8StringEncoding];
}
-(void) text
{
NSFileManager *fm;
NSString *fName = @"path.m";
NSString *path,*tempdir,*extension,*homedir,*fullpath;
NSString *upath = @"~stevekochan/progs/../ch16/./path.m";
NSArray *components;
fm = [NSFileManager defaultManager];
//当前工作目录
NSString *resourcePath=[[NSBundle mainBundle] resourcePath];
NSLog(@"current work directiry : %@", resourcePath);
//Get the temporary working directory
tempdir = NSTemporaryDirectory();
NSLog(@"Temporary Directory is %@",tempdir);
//Extract the base directory from current directory
path = [fm currentDirectoryPath];
NSLog(@"Base dir is %@",[path lastPathComponent]);
//Create a full path to the file fName in current directory
fullpath = [path stringByAppendingPathComponent:fName];
NSLog(@"fullpath to %@ is %@",fName,fullpath);
//Get the file name extension
extension = [fullpath pathExtension];
NSLog(@"extension for %@ is %@", fullpath,extension);
//Get user's home directory
homedir = NSHomeDirectory();
NSLog(@"Your home directory is %@",homedir);
//Divide a path into its components
components = [homedir pathComponents];
for(int i = 0; i < [components count]; i++)
{
NSLog(@"%@",[components objectAtIndex: i]);
}
//"Standardize" a path
NSLog(@"%@ => %@",upath,[upath stringByStandardizingPath]);
}
-(void) readText
{
NSFileManager *fm=[NSFileManager defaultManager];
NSString *file1=@"/text/1.txt";
NSString *file2=@"/text/2.txt";
NSData *data=[fm contentsAtPath:file2];
//读取文件内容
if(![fm fileExistsAtPath:file1])
{
[fm createFileAtPath:file1 contents:data attributes:nil];
//如果文件不存在，就以file2的文件内容创建file1
}
NSString *myData = [NSString stringWithContentsOfFile:file1 encoding:NSUTF8StringEncoding error:nil];
NSLog(@"%@",myData);
//创建数据缓冲
NSMutableData *writer = [[NSMutableData alloc] init];
//将字符串添加到缓冲中
[writer appendData:[myData dataUsingEncoding:NSUTF8StringEncoding]];
//将其他数据添加到缓冲中
//将缓冲的数据写入到文件中
[writer writeToFile:file2 atomically:YES];
[writer release];
}
-(void) rwFile
{
NSString *file1=@"/text/1.txt";
NSString *file2=@"/text/2.txt";
NSData *myData = [[[NSData alloc] initWithContentsOfFile:file1] autorelease];
[myData writeToFile:file2 atomically:YES];
}
-(void) wDouble
{
NSString *file1=@"/text/3.txt";
double *MHB = (double *)malloc(2 * sizeof(double));
MHB[0] = 0.0;
MHB[1] = 1.0;
NSString *myData = [[NSString alloc] initWithString: @"data : "];
myData = [myData stringByAppendingFormat:@"%lf %lf",MHB[0], MHB[1]];
//创建数据缓冲
NSMutableData *writer = [[NSMutableData alloc] init];
//将字符串添加到缓冲中
[writer appendData:[myData dataUsingEncoding:NSUTF8StringEncoding]];
//将其他数据添加到缓冲中
//将缓冲的数据写入到文件中
[writer writeToFile:file1 atomically:YES];
[writer release];
}
-(void) openfile
{
FILE *fp = NULL;
fp = fopen("/text/5.txt", "w");
if(fp == NULL)
NSLog(@"failed to open file");
fprintf(fp, "%d", 1);
fclose(fp);
}
- (void)run{
while (TRUE) {
// 上锁
[ticketsCondition lock];
if(tickets > 0){
[NSThread sleepForTimeInterval:0.5];
count = 100 - tickets;
NSLog(@"当前票数是:%d,售出:%d,线程名:%@",tickets,count,[[NSThread currentThread] name]);
tickets--;
}else{
break;
}
[ticketsCondition unlock];
}
}
@end