ACCT
NAME
acct - switch process accounting on or off
SYNOPSIS
#include <unistd.h>
int acct(const char *filename);
DESCRIPTION
When called with the name of an existing file as argument, accounting is
turned on, records for each terminating process are appended to
filename as it terminates. An argument of NULL causes
accounting to be turned off.
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and
errno
is set appropriately.
ERRORS
- 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.
- ENOMEM
-
Out of memory.
- EPERM
-
The calling process has no permission to enable process accounting.
- EACCESS
-
The argument
filename
is not a regular file.
- EIO
-
Error writing to the file
filename.
- EUSERS
-
There are no more free file structures or we run out of memory.
CONFORMING TO
SVr4 (but not POSIX). SVr4 documents EACCES, EBUSY, EFAULT,
ELOOP, ENAMETOOLONG, ENOTDIR, ENOENT, EPERM and EROFS error
conditions, but no ENOSYS.
NOTES
No accounting is produced for programs running when a crash occurs. In
particular, nonterminating processes are never accounted for.