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OSTEP

时间:2022-09-07 00:33:46浏览次数:87  
标签:__ int void rc mutex pthread OSTEP

汉语资源 

环境 windows10 + vmware + archlinux 

Intro

第一个程序cpu.c就编译失败,原因是有一句 #include "common.h" ,随便网上搜了一下,找到了这个文件,抄进去之后编译成功。

common.h
#ifndef __common_h__
#define __common_h__

#include <sys/time.h>
#include <assert.h>
#include <pthread.h>

double
GetTime()
{
    struct timeval t;
    int rc = gettimeofday(&t, NULL);
    assert(rc == 0);
    return (double)t.tv_sec + (double)t.tv_usec/1e6;
}

void
Spin(int howlong)
{
    double t = GetTime();
    while((GetTime() - t) < (double)howlong)
        ;  // do nothing in loop
}


void
Pthread_create(pthread_t *t, const pthread_attr_t *attr,
        void *(*start_routine)(void *), void* arg) {
    int rc = pthread_create(t, attr, start_routine, arg);
    assert(rc == 0);
}

void
Pthread_join(pthread_t thread, void **value_ptr) {
    int rc = pthread_join(thread, value_ptr);
    assert(rc == 0);
}

void
Pthread_mutex_lock(pthread_mutex_t *mutex) {
    int rc = pthread_mutex_lock(mutex);
    assert(rc == 0);
}

void
Pthread_mutex_unlock(pthread_mutex_t *mutex) {
    int rc = pthread_mutex_unlock(mutex);
    assert(rc == 0);
}

void
Pthread_mutex_init(pthread_mutex_t *mutex, pthread_mutexattr_t *attr) {
    int rc = pthread_mutex_init(mutex, attr);
    assert(rc == 0);
}

#endif // __common_h__

正常运行,但是在控制台按Ctrl+C无法终止。 解决方法:执行ps -ef | grep cpu找到你的程序的pid,然后执行kill pid1 pid2 ...结束进程。

标签:__,int,void,rc,mutex,pthread,OSTEP
From: https://www.cnblogs.com/huyufeifei/p/16663839.html

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