fcntl return 0
这里介绍另外一种办法，可以用 fcntl 函数改变一个已打开的文件的属性，可以重新设置 ... perror("read stdin"); exit(1); } write(STDOUT_FILENO, buf, n); return 0; }. ,If the FD_CLOEXEC flag in the third argument is 0, the file shall remain open ... If a shared or exclusive lock cannot be set, fcntl() shall return immediately with a ...
| 相關軟體 Folder Lock 資訊 | |
|---|---|
 fcntl return 0 相關參考資料
fcntl()'s return value with F_GETFD flag? - Stack Overflow
Check fcntl 's manual, there is only one flag(FD_CLOEXEC) in this type. So if not set this flag for the fd, then F_GETFD will return value 0. https://stackoverflow.com 6. fcntl
这里介绍另外一种办法，可以用 fcntl 函数改变一个已打开的文件的属性，可以重新设置 ... perror("read stdin"); exit(1); } write(STDOUT_FILENO, buf, n); return 0; }. https://akaedu.github.io fcntl - The Open Group Publications Catalog
If the FD_CLOEXEC flag in the third argument is 0, the file shall remain open ... If a shared or exclusive lock cannot be set, fcntl() shall return immediately with a ... https://pubs.opengroup.org Linux下C语言中fcntl函数用法说明| ASPIRE
fcntl()函数对由参数fd 指定的文件进行由参数cmd 指定的操作；第三个参数arg 是 ... return 0 ;. } void set_flag( int fd, int flags). . int val;. val = fcntl(fd ... https://ixyzero.com Linux fcntl函数详解- 夕相待- 博客园
如果返回值和FD_CLOEXEC进行与运算结果是0的话,文件保持交叉式 ... 13 return -1; 14 } 15 printf("fd = %d-n", fd); 16 17 fcntl(fd, F_SETFD, 0);// ... https://www.cnblogs.com 文件鎖fcntl @ 邱小新の工作筆記:: 痞客邦::
... < 0) return 1; memset(&lock, 0, sizeof(lock)); // 排他鎖,即不允許其他進程 ... 鎖定if (fcntl(fd, F_SETLK, &lock) == 0) /* 若為F_SETLKW,這時如果鎖 ... https://jyhshin.pixnet.net fcntl Linux - IT閱讀 - ITREAD01.COM
If the FD_CLOEXEC bit is 0, the file descriptor will remain open across ... Return. fcntl的返回值取決於命令。所有的指令遇到錯誤時返回-1,成功時 ... https://www.itread01.com [轉]Linux系統調用--fcntl函數詳解- IT閱讀 - ITREAD01.COM
如果返回值和FD_CLOEXEC進行與運算結果是0的話,文件保持交叉式 ... 13 return -1; 14 } 15 printf("fd = %d-n", fd); 16 17 fcntl(fd, F_SETFD, 0);// ... https://www.itread01.com fcntl(2) - Linux manual page - man7.org
F_GETFD (void) Return (as the function result) the file descriptor flags ... Specifying 0 for l_len has the special meaning: lock all bytes starting at ... http://man7.org fcntl() -- control open file descriptors - MKS Toolkit
File descriptor flags are associated with a single file descriptor and do not affect other file descriptors that refer to the same file. The return value is 0 on success, ... https://www.mkssoftware.com |