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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.rmit.EDU.AU!news.unimelb.EDU.AU!munnari.OZ.AU!news.hawaii.edu!news.uoregon.edu!vixen.cso.uiuc.edu!uwm.edu!rutgers!cbgw3.att.com!news.PBI.net!samba.rahul.net!rahul.net!a2i!mhk.a2i!mhk From: Mike Humski <mhk@rahul.net> Newsgroups: comp.unix.programmer,comp.os.linux.development.apps,comp.unix.solaris,comp.unix.bsd Subject: How to flush write buffer ? Date: 10 Jun 1996 03:16:59 GMT Organization: a2i network Lines: 22 Distribution: world Message-ID: <4pg43b$hru@samba.rahul.net> NNTP-Posting-Host: waltz.rahul.net NNTP-Posting-User: mhk Xref: euryale.cc.adfa.oz.au comp.unix.programmer:38276 comp.os.linux.development.apps:17384 comp.unix.solaris:71357 comp.unix.bsd:16797 Could some one let me know how to flush the write buffer of kernel? I know you can flush the buffer at each call of "write" by selecting O_SYNC as the second argumnet of "open" system call. But what I would like to do is to flush the buffer when I want to. Only possibility that I know of is "fcntl" with O_SYNC argumnet. But it seems to be effective only from the next call of "write" and not to the currently pending buffer contents. By the way I understand that fflush function of the standard lib does just flushing from the lib's buffer to kernel, not from kernel's buffer. Am I right ? I wish to use this technique with Solaris2.x (SunOS5.x), SunOS4.x, BSDs, and LINUX. Thank you for your help in advance. Mike