Date: Fri, 21 May 1999 11:01:46 -0400 (EDT) From: Zhihui Zhang <zzhang@cs.binghamton.edu> To: freebsd-hackers@freebsd.org Subject: open a file for read and write Message-ID: <Pine.GSO.3.96.990521110117.12277A-100000@sol.cs.binghamton.edu>
next in thread | raw e-mail | index | archive | help
If I want to read and write a file, I can do it in two ways: (1) Open the file as read and write, using one file descriptor. (2) Open the file as read only and open it again as write only, using a total of two file descriptors. Method (2) is more clear in logic and uses a little more resource (file descriptors). Other than these, are there any performance reasons for doing so? Method (2) is used in source code file mkfs.c when we open a special device file to create a file system. Thanks for any help. -Zhihui -------------------------------------------------- Zhihui Zhang. Please visit http://www.freebsd.org -------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.GSO.3.96.990521110117.12277A-100000>