Wait(NULL)
They do run in parallel, up until the point that one of them waits. wait(NULL) or more accurately wait(0) means wait until a state change in the ...,You use wait for synchronization, when you want to make sure the parent will only proceed with its execution when its child has terminated. If the parent's ... ,wait(NULL) will block parent process until any of its children has finished. If child terminates before parent process reaches wait(NULL) then the child process ... , 等待子进程退出。NULL的意思是退出状态不关注。如果要获取退出状态应该写成wait(&status);. 已赞过 已踩过<. 你对这个回答的评价是？ 评论 收起., pr=wait(NULL);. printf("I catched a child process with pid of %d-n"),pr);. } printf(“hello1-n”);. pc=fork();. if(pc==0). . printf("This is child process ..., 如果参数status的值不是NULL，wait就会把子进程退出时的状态取出并存入其中， 这是一个整数值（int），指出了子进程是正常退出还是被非正常结束 ...,When wait() returns they also define exit status (which tells our, a process why terminated) via pointer, If status are not NULL. If any process has no child process ... , If you call wait(NULL) (wait(2)), you only wait for any child to terminate. With wait(&status) you wait for a child to terminate but you want to know ..., Your child process never exits! When the system function is done, then the child process will just continue. You need to explicitly exit it., If the child hasn't exited, the parent will wait for it until it exits. If the child has exited, the parent will obtain its status information and then ...
| 相關軟體 Processing 資訊 | |
|---|---|
 Wait(NULL) 相關參考資料
C - meaning of wait(NULL) when executing fork() in parallel ...
They do run in parallel, up until the point that one of them waits. wait(NULL) or more accurately wait(0) means wait until a state change in the ... https://stackoverflow.com How does wait (null) work in C? - Quora
You use wait for synchronization, when you want to make sure the parent will only proceed with its execution when its child has terminated. If the parent's ... https://www.quora.com How does wait(NULL) exactly work? - Stack Overflow
wait(NULL) will block parent process until any of its children has finished. If child terminates before parent process reaches wait(NULL) then the child process ... https://stackoverflow.com linux C中的wait(NULL)是什么意思？请问_百度知道
等待子进程退出。NULL的意思是退出状态不关注。如果要获取退出状态应该写成wait(&status);. 已赞过 已踩过<. 你对这个回答的评价是？ 评论 收起. https://zhidao.baidu.com linux的fork(),waitpid()及wait()的用法| b0lv42'blog - 不断探索!
pr=wait(NULL);. printf("I catched a child process with pid of %d-n"),pr);. } printf(“hello1-n”);. pc=fork();. if(pc==0). . printf("This is child process ... https://b0lv42.github.io Linux编程基础之进程等待（wait()函数） - linux先生- 博客园
如果参数status的值不是NULL，wait就会把子进程退出时的状态取出并存入其中， 这是一个整数值（int），指出了子进程是正常退出还是被非正常结束 ... https://www.cnblogs.com Wait System Call in C - GeeksforGeeks
When wait() returns they also define exit status (which tells our, a process why terminated) via pointer, If status are not NULL. If any process has no child process ... https://www.geeksforgeeks.org wait(null) and wait(&status) C language and Status - Stack ...
If you call wait(NULL) (wait(2)), you only wait for any child to terminate. With wait(&status) you wait for a child to terminate but you want to know ... https://stackoverflow.com wait(NULL) is not waiting till forked process is finished - Stack ...
Your child process never exits! When the system function is done, then the child process will just continue. You need to explicitly exit it. https://stackoverflow.com what does wait(null) do in this case and what is the output of ...
If the child hasn't exited, the parent will wait for it until it exits. If the child has exited, the parent will obtain its status information and then ... https://stackoverflow.com |