Date: Thu, 14 Oct 1999 16:58:38 -0400 (EDT) From: Zhihui Zhang <zzhang@cs.binghamton.edu> To: freebsd-hackers@freebsd.org Subject: Determine # of open files via fdesc Message-ID: <Pine.GSO.3.96.991014164954.3631B-100000@sol.cs.binghamton.edu>
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I do not know whether it is a good idea to determine the number of open files of a process by enabling fdesc in the kernel. Anyway, I do the following: # mount_fdesc -o union fdesc /dev # ls -al /dev/fd > list > cat list total 1 crw------- 1 root tty 12, 0 Oct 15 17:09 0 -rw-r--r-- 1 root wheel 0 Oct 15 17:09 1 crw------- 1 root tty 12, 0 Oct 15 17:09 2 drw-r--r-- 5 root wheel 1024 Oct 15 17:09 3 dr--r--r-- 2 root wheel 512 Oct 15 16:28 4 I do not know why 3 and 4 are labeled as directory. 1 was labeled as character device but is changed probably by the redirection >. I run a small program to open three files and run forever in the background. After this, I expect to see three more items under /dev/fd, but there are not. Can anyone explain this to me? Any help is appreciated. -Zhihui To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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