acct()函數 Unix/Linux

名稱

acct - 切換或關閉進程記帳

#include <unistd.h>

int acct(const char *filename);

與現有的文件名作為參數調用時，占被打開，每個終止的進程的記錄，被追加到文件名作為終止。參數為NULL 引起占用被關閉。

成功則返回0。錯誤則返回-1，errno 設置為合適。

標簽	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).

冇有賬號產生的程序運行時發生崩潰。特彆是無窮的過程從來冇有賬號。