acct()函数 Unix/Linux

名称

acct - 切换或关闭进程记帐

#include <unistd.h>

int acct(const char *filename);

与现有的文件名作为参数调用时，占被打开，每个终止的进程的记录，被追加到文件名作为终止。参数为NULL 引起占用被关闭。

成功则返回0。错误则返回-1，errno 设置为合适。

标签	描述
EACCES	Write permission is denied for the specified file, or search permission is denied for one of the directories in the path prefix of filename (see also path_resolution(2)), or filename is not a regular file.
EFAULT	filename points outside your accessible address space.
EIO	Error writing to the file filename.
EISDIR	filename is a directory.
ELOOP	Too many symbolic links were encountered in resolving filename.
ENAMETOOLONG	filename was too long.
ENFILE	The system limit on the total number of open files has been reached.
ENOENT	The specified filename does not exist.
ENOMEM	Out of memory.
ENOSYS	BSD process accounting has not been enabled when the operating system kernel was compiled. The kernel configuration parameter controlling this feature is CONFIG_BSD_PROCESS_ACCT.
ENOTDIR	A component used as a directory in filename is not in fact a directory.
EPERM	The calling process has insufficient privilege to enable process accounting. On Linux the CAP_SYS_PACCT capability is required.
EROFS	filename refers to a file on a read-only file system.
EUSERS	There are no more free file structures or we ran out of memory.

SVr4, 4.3BSD (but not POSIX).

没有账号产生的程序运行时发生崩溃。特别是无穷的过程从来没有账号。