Question

linux中有什么函数可替代waitForSingleObject

Answer 1

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38

Windows中的WaitForSingleObject()函数对应在Linux中的sem_wait()，SetEvent对应sem_post()，
参考下面的Linux程序：
#include
#include
#include
#include
#include
#include
char tem[10]; //读写公共区
sem_t sem;
void* thread_fun(void*);
int main()
{
int counter=0;
pthread_t mythread;
sem_init(&sem,0,0);
pthread_create(&mythread,NULL,thread_fun,NULL);
while(counter<10) //往读写区里写10次'f'
{
tem[counter]='f';
counter++;
sem_post(&sem);
}
pthread_join(mythread,NULL); //等待子线程
sem_destroy(&sem);
exit(0);
}
void* thread_fun(void* arg) //子线程函数
{
int counter=0;
while(counter<10&&sem_wait(&sem)==0)
{
printf("%c",tem[counter]); //读出来显示
counter++;
//sem_wait(&sem);
}
pthread_exit(NULL);
}