Change fdalloc() to return ERESTART if we had to reallocate the
descriptor array, which may have blocked. Change callers of
fdalloc() to restart whatever they\'re doing if this condition
happens. (

Change fdalloc() to return ERESTART if we had to reallocate the
descriptor array, which may have blocked. Change callers of
fdalloc() to restart whatever they\'re doing if this condition
happens. (XXX unp_externalize() needs some work, but that will
be tackled later.)

Change finishdup() to close the descriptor in the `new\' slot if
one exists, and change sys_dup2() accordingly.

Closes a race condition when using kernel-assisted user threads.

While here, garbage-collect UF_MAPPED -- it is not used anywhere.

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convert to ANSI KNF

Implement fdremove() which is used in place of all the code that
did the "fdp->fd_ofiles[fd] = 0" assignment; fdremove() make sure
the fd_freefiles hints stay in sync.

From OpenBSD.

Make dupfdopen() take a proc * instead of a filedesc *.

Break cdir/rdir/cmask info out of struct filedesc, and put it in a new
substructure, `cwdinfo'. Implement optional sharing of this substructure.

This is required for clone(2).

Implement file descriptor table sharing. Partially from FreeBSD.

add multiple inclusion protection

fix extra spaces at ends of lines, etc. (all spacing nits.)

filedesc.h, proc.h: Rename fdopen() to filedescopen() so that it does not
conflict with the floppy driver.
conf.h: Protect against multiple inclusions. The reason will become apparent
soon.
sy

filedesc.h, proc.h: Rename fdopen() to filedescopen() so that it does not
conflict with the floppy driver.
conf.h: Protect against multiple inclusions. The reason will become apparent
soon.
systm.h: Bring Debugger() prototype into scope.

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Filesystem prototype changes

KERNEL -> _KERNEL

Change fd_lastfile and fd_freefile to ints.

New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'

new standard, minimally intrusive ID format

update to 4.4-lite; minor local changes

generalize dupfdopen() to allow dups and moves. from jsp

fix that last (for now)

add proto for dupfdopen()

add rcs ids as necessary, and also clean up headers

Add consistent multiple-inclusion protection.

initial import of 386bsd-0.1 sources