On Wed, 28 Nov 2001 01:05:19 +0100, "Thorsten Froehlich" <tho### [at] trfde>
wrote:
> I am not aware of _any_ program that would not block.  Do you have an
> example of any such program either commercial or free?

IIRC MS Word copies memory allocation with document into another location and
starts saving in another process and allows changes during save. But I don't
remember if it stops whole aplication during network problems.

ABX
--
#declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb 1}}
union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{ //ABX
function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)}
contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient 1}}//POV35

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> 
> On Wed, 28 Nov 2001 01:05:19 +0100, "Thorsten Froehlich" <tho### [at] trfde>
> wrote:
> > I am not aware of _any_ program that would not block.  Do you have an
> > example of any such program either commercial or free?
> 
> IIRC MS Word copies memory allocation with document into another location and
> starts saving in another process and allows changes during save. But I don't
> remember if it stops whole aplication during network problems.

it's a modern Word, because it does not behave like that in the version I have.
Printing is a background job.

The problem with a non-blocking save is that the user may thing the document
is safe whereas it is still in some cache in the system.
Rampage happen if the user turn-off the computer after a non-blocking save...

P.S.: I know of one unusual OS which try to make 
all the write I/O asynchronously, so no program blocks whenever writing to a 
file, unless there is not enough memory (in which case, the system I/O get 
top priority for a short moment in order to flush some of the pending write).
Stopping that system usually required to wait for all the drives' light to turn
off, You just have to be aware of that for your critical data...

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