Date: Sat, 08 Jan 2000 23:58:06 -0800 From: "Ronald F. Guilmette" <rfg@monkeys.com> To: freebsd-questions@freebsd.org Subject: Two question about Berkeley DB Message-ID: <25823.947404686@monkeys.com>
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I have two simple questions about Berkeley DB.
First, does Berkeley DB us mmap() ?
Second, the man page for dbopen() says regarding the `sync' function
pointer:
sync A pointer to a routine to flush any cached informa-
tion to disk. If the database is in memory only,
the sync routine has no effect and will always suc-
ceed.
I want to know if this really means what it says. Does calling the
sync function *really* flush data to the physical disk, or only to
the kernel's buffer cache? Also, is it necessary to call the `sync'
function in order to be assured that some other process that also
has the DB file open will see the recent changes to the database
made by the current process?
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