posix real-timeextensions henry h. robbins - … real-timeextensions henry h. robbins abstract posix...

Post on 27-May-2018

220 Views

Category:

Documents

0 Downloads

Preview:

Click to see full reader

TRANSCRIPT

N95- 14165

•i ¸¸ . .

•i̧ •i_:i_<%.:

:i_...:

POSIX REAL-TIME EXTENSIONS

Henry H. Robbins

ABSTRACT

POSIX is an evolving set of operating system interface standards, whose parts are invarying stages of production in a number of standards working groups. This presentationseparates the real-time POS/X standards work in progress from the rest and provides anoverview of the purpose, status, dependencies, content, and projected schedule of each.

BIOGRAPHY

Mr. Robbins is an Advisory Systems Engineer with the IBM Federal Systems Company. Hisrecent work includes software engineering support of NASA JSC's Space Station Control

Center, which requires the use of POSIX operating systems and the Ada language. He is alsoIBM's representative to the IEEE TCOS 1003.5 (Ada Bindings) Working Group, which is :: :::<currently addressing Ada bindings to real-time POSIX.

https://ntrs.nasa.gov/search.jsp?R=19950007751 2018-07-01T16:34:54+00:00Z

I

-._.j

0It

I

0

IIImll.,|11,"IIImll

ii:il:llI1""11

,.. o _ "._

•-_ O = ,,, _ -

_ = "E ..=

o o o

=:_o o__, o,., _ _= =_ d °°

_xo &8=_ _o _-___ _,,,,,,,,, ,-, ,,, 2 _ , I =6,_illli /I1:11',11/ • • •Ilunll l

<

==

(/3

5

oo

CM

In

o_

is

0

0

0

Illt,II.Ill,IlUPll

il_r,liIlmql

EE

Ol

<

CO

C)

5.>,

63

c-O

OR

U_

U"i

i

N

li=0

O

0

llll!dl,tJillliII111',11llmill

"0C

¢n

x_

0 _-

Nmm

i'M

i_

G).Qola0

III1!*11..|11'"

I!11,*11

II:ll:llIliliill

O1

a,,

8n_

ill

m

I=

C

<

E@

mg

mll

0L

" E _--<

o ¢_'_ m•-- "13 c" --

Q.-- tY

n, og..j n" <<

_L _L

o

C|m im

0

m

¢_ •

0 0 0 0 0 0 0 0 0_,, 0 0 0 0 0 _,, 0 0

I_. D. CL i_. CL CI. O.

<=._ _ _= _.>_<

I_ c _ m mOo _ .__#._ _ o= .'_'_ _'x_ o E

== _= <__

o 'l:..a "_ :,.._-_ _0

, _ =._._ _ ..-_

-_ _ >_ :==I,I,I 0 "--

.o _r- I= o_x :.__ _ -_:

..o :. .8n

,,,,,,, :_ ,_ __._=_mil:;iI1,11,11 • •I1""11

=_ o -8C_. E

== =._ xr "_ ,.__ '=

, _ o_ __ _=o__ >"(_ _

,,,,,,,,. ._8 _:_ _.__ >'_',,llii /I1:11;11I • • • • "JJnllJl i

0

-. Ill.011• "11..

IIIl,it-_ _',11',11

II"II

n

00

a.

0

t-O

if)

if)B

m

{n{n

i_

@,a0

o

Illl!,ll..;ll0.

III1.11

I1:11111II"II

8E

_8

a_

8

- _ _

_L

&

! :8

_=

6

ed

In

0

0

U0

V

lh.,ll;I,,.

I Inll

-_-II:II:IIII"II

A

m

"0

.C

m

0..

E

"3

"0i={U

ibm

m

0

0

i

0"}C'_ C'_l O_O_ O_ _'-

oo_

t-O

c-

f-

_Dn,,

E

00m

0

>.,

0

m

L_m

r_

N

o--.

0

U0

IJll!dl.,]llo.

IIn00n

ir,ll',llII.ull

• • • • • • •

(%1mm

L

0.Q0

o

II iolll.,lit,.

IIIIOtll

I1:11:11I1""11

!

=_

0

<

E0

o_

gOgO

O0i

i

ry

NO_O_

L-

¢D

0

o

IIImll..|11"

IIn.II

I1:11:11I1""11

(J

E

,=

{U

8

- !

,__ __e

¢%i

Ik.

0

Uo

J

Illl,lll.il*,

flit.It

_'J I1:11:11II""II

A

i

E

00

a.

a.

(_ C_

"0

t-0

.im

<

f-

E

i

°_

if?

0,i

if)

c_n

i

i

eMI.

{P

0

ta@

IllPdl.| Io,

IlliOOll

ir,ll',llI1""11

u

8

0

<

n_

_5

li

{n{t)

II

q).a0ca0

III .I,II..,!11"

Ipnql

I1:11111II'mll

A

G)I

"0G)

t/)

C0

If

CG)

xELIibm

_L

E

W

(/)

.Q

00

E

0

"O

.e_.

_e

<

L'M

"0a_

2Q.

<

<

,,,,,,,, _ _ • _ __ < _wil:;iII:ll:ll • • •

o_._. >,.>7__

(_ .i=, :;= {3.- =__ =_._

,,,,,,_ = rj I-- I I I-- m,,l:;i III:U:II/ • • • •I1."tl U

I',,,Itt)

NL

0l,l0

lill!Onmnnnllii

iI',lr,IiII'00011

g

C

00

Q,,

e-. o e...

._ • __ -ffl

_ ___._ E

,.__ _ _._ _,

_ ____. "E::N o o -a

_. ='-_ _-_'_

iiin

IO_

N

'W"

tMi.._

0u0

lilmllJll,.

, IlilUll

• irll'lill""ll

A

I

i

mile

41i

_)E

CIJJ

i

Q=

Elliii

I

o_

i0

i

00_.

"0

COc-O

,I

I

1::).<

t-

J:::(D

GI

rr

E

i

,i

.i

I,,.

U>,

c_

E0

,i

i

_Di

rY

. > o._

_' __ _ a.E''_,._

,_illliIll:U:llI • • • • I(",_._II""III in,"

,_ _ _, ,? ,o<,_

oo == __

g ' o_O_

"'"'" !II'"'II _ _'-- _" _

J

J

¢1')

¢%1Im

0.Q0

U0

l[llnll_li,,

IIIhill

II111111[Innll

,I"I

I,

=

0 _,_

__ a._

,.m__.

_ _"p_

_ ®<o _ _

o -__ -x _-g:_ _ __

e-- _ o

<

f_

5

g

m

JJ

top related