sDir.st_mode 肯定有编码规则，而 S_IFMT 是一个bit MARK（例：0x00E0）, 两者相与后，相当于取到S_IFMT相关的那段子编码，然后判断是否与S_IFDIR相等。理解了吗？
S_IFMT:用于提取文件类型的掩码,可以通过与st_mode进行按位与操作来获取文件类型。 S_IFSOCK:套接字文件。 S_IFLNK:符号链接文件。 S_IFREG:普通文件。 S_IFBLK:块设备文件。 S_IFDIR:目录文件。 S_IFCHR:字符设备文件。 S_IFIFO:命名管道文件。 访问权限的位掩码: S_IRWXU:文件所有者的读、写、执...
std::move和std::forward只是执行转换的函数(确切的说应该是函数模板)。std::move无条件的将它的参数...
self.assertEqual(stat.S_IFMT(newmode), stat.S_IFDIR) 开发者ID:s3ql,项目名称:s3ql,代码行数:22,代码来源:t3_fsck.py 示例5: _sig ▲点赞 5▼ # 需要导入模块: import stat [as 别名]# 或者: from stat importS_IFMT[as 别名]def_sig(st):return(stat.S_IFMT(st.st_mode), st.st_size, s...
switch (sb.st_mode & S_IFMT) { case S_IFBLK: printf("block device\n"); break;case S_IFCHR: printf("character device\n"); break;case S_IFDIR: printf("directory\n"); break;case S_IFIFO: printf("FIFO/pipe\n"); break;case S_IFLNK: printf("symli...
|| (S_IFMT & lstat_buf.st_mode) != (S_IFMT & fstat_buf.st_mode)) {/* Since the lstat was not a symbolic link, and the file opened does * not match the one in the directory, it must have been replaced * between the open and the lstat, so try again. ...
#ifdef DOSOCKS if ( ( bstatp->bs_mode & S_IFMT ) == S_IFSOCK ) { int sockfd; struct sockaddr_un addr; @@ -7782,29 +7729,25 @@ restore_spec( filehdr_t *fhdrp, rv_t *rvp, char *path ) return BOOL_TRUE; } ( void )close( sockfd ); ...
st_mode 成员包含被 S_IFMT (0170000) 屏蔽的 4 位。这些位的值是: S_IFSOCK 0140000 socket S_IFLNK 0120000 symbolic link S_IFREG 0100000 regular file S_IFBLK 0060000 block device S_IFDIR 0040000 directory S_IFCHR 0020000 character device S_IFIFO 0010000 FIFO 所以宏 S_ISREG 可以这样定义:...
Isn't S_IFMT defined as part of POSIX and not part of the XSI extensions?http://www.opengroup.org/onlinepubs/007904975/basedefs/sys/stat.h.htmlI understand that S_IFREG, S_IFDIR, etc. are part of XSI, but my reading of The Open Group Base Specifications Issue 6, IEEE Std 1003.1,...
{ int n_dnodes, n_subdirs; i->i_mode |= S_IFDIR; i->i_op = &hpfs_dir_iops; i->i_fop = &hpfs_dir_ops; hpfs_inode->i_parent_dir = fnode->up; hpfs_inode->i_dno = fnode->u.external[0].disk_secno; if (hpfs_sb(sb)->sb_chk >= 2) { struct buffer_head *bh0; ...