|
DataMuseum.dkPresents historical artifacts from the history of: Rational R1000/400 |
This is an automatic "excavation" of a thematic subset of
See our Wiki for more about Rational R1000/400 Excavated with: AutoArchaeologist - Free & Open Source Software. |
top - download
Length: 8192 (0x2000)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Table, seg_051639
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─ ⟦5a81ac88f⟧ »Space Info Vol 1«
└─⟦this⟧
with Text_Io;
package body Table is
Eol : constant Natural := 0;
procedure Initialise (O : in out Object) is
begin
for I in O.Hashing'Range loop
O.Hashing (I) := Eol;
end loop;
O.Liste_Poste_Libre := Tab_Item'First;
for I in Tab_Item'First .. Tab_Item'Last - 1 loop
O.Tableau (I).Suivant := I + 1;
end loop;
O.Tableau (O.Tableau'Last).Suivant := Eol;
end Initialise;
function Hash (N : Natural) return Natural is
begin
return (N mod Max_Taille_Hash) + 1;
end Hash;
procedure Get_Premier_Libre (O : in out Object; N : in out Natural) is
begin
if O.Liste_Poste_Libre = Eol then
raise Overflow_Error;
else
N := O.Liste_Poste_Libre;
O.Liste_Poste_Libre := O.Tableau (N).Suivant;
end if;
end Get_Premier_Libre;
procedure Set_Premier_Libre (O : in out Object; N : Natural) is
begin
O.Tableau (N).Suivant := O.Liste_Poste_Libre;
O.Liste_Poste_Libre := N;
end Set_Premier_Libre;
procedure Add_Item (O : in out Object; I : Item) is
N : Natural;
H : Natural;
begin
Get_Premier_Libre (O, N);
O.Tableau (N).Element := I;
H := Hash (Cle (I));
O.Tableau (N).Suivant := O.Hashing (H);
O.Hashing (H) := N;
end Add_Item;
procedure Rem_Item (O : in out Object; I : Item) is
H : Natural;
N : Natural;
Prec : Natural;
begin
H := Hash (Cle (I));
N := O.Hashing (H);
if N = Eol then
raise Not_Found_Error;
else
if O.Tableau (N).Element = I then
O.Hashing (H) := O.Tableau (N).Suivant;
Set_Premier_Libre (O, N);
else
Prec := N;
N := O.Tableau (N).Suivant;
while N /= Eol loop
if O.Tableau (N).Element = I then
O.Tableau (Prec).Suivant := O.Tableau (N).Suivant;
Set_Premier_Libre (O, N);
exit;
end if;
Prec := N;
N := O.Tableau (N).Suivant;
end loop;
if N = Eol then
raise Not_Found_Error;
end if;
end if;
end if;
end Rem_Item;
procedure Mod_Item (O : in out Object; I, Par : Item) is
begin
Rem_Item (O, I);
Add_Item (O, Par);
end Mod_Item;
procedure Dump (O : Object) is
N : Natural;
begin
N := O.Liste_Poste_Libre;
Text_Io.Put ("postes libres : ->");
while N /= Eol loop
Text_Io.Put (Natural'Image (N) & "->");
N := O.Tableau (N).Suivant;
end loop;
Text_Io.New_Line;
for I in Tab_Hash'Range loop
Text_Io.Put ("hash(" & Natural'Image (I) & ") ->");
N := O.Hashing (I);
while N /= Eol loop
Text_Io.Put (Image (O.Tableau (N).Element) & "->");
N := O.Tableau (N).Suivant;
end loop;
Text_Io.New_Line;
end loop;
end Dump;
function First_Item (O : in Object) return Iterateur is
Iter : Iterateur;
begin
Iter.Utilise_Cle := False;
Iter.Hash := 1;
Iter.Indice := Eol;
while Iter.Hash /= Max_Taille_Hash loop
if O.Hashing (Iter.Hash) /= Eol then
exit;
end if;
Iter.Hash := Iter.Hash + 1;
end loop;
Iter.Indice := O.Hashing (Iter.Hash);
return Iter;
end First_Item;
function First_Item (O : Object; Key : Natural) return Iterateur is
Iter : Iterateur;
begin
Iter.Utilise_Cle := True;
Iter.Cle := Key;
Iter.Indice := O.Hashing (Hash (Key));
while Iter.Indice /= Eol loop
if Cle (O.Tableau (Iter.Indice).Element) = Iter.Cle then
exit;
end if;
Iter.Indice := O.Tableau (Iter.Indice).Suivant;
end loop;
return Iter;
end First_Item;
procedure Next_Item (Iter : in out Iterateur; O : Object) is
begin
if End_Of_Iter (Iter) then
raise Iterateur_Error;
else
if Iter.Utilise_Cle then
Iter.Indice := O.Tableau (Iter.Indice).Suivant;
while Iter.Indice /= Eol loop
if Cle (O.Tableau (Iter.Indice).Element) = Iter.Cle then
exit;
else
Iter.Indice := O.Tableau (Iter.Indice).Suivant;
end if;
end loop;
else
Iter.Indice := O.Tableau (Iter.Indice).Suivant;
if Iter.Indice = Eol then
if Iter.Hash /= Max_Taille_Hash then
Iter.Hash := Iter.Hash + 1;
while Iter.Hash /= Max_Taille_Hash loop
if O.Hashing (Iter.Hash) /= Eol then
exit;
end if;
Iter.Hash := Iter.Hash + 1;
end loop;
Iter.Indice := O.Hashing (Iter.Hash);
end if;
end if;
end if;
end if;
end Next_Item;
function Current_Item (Iter : Iterateur; O : Object) return Item is
begin
if End_Of_Iter (Iter) then
raise Iterateur_Error;
else
return O.Tableau (Iter.Indice).Element;
end if;
end Current_Item;
function End_Of_Iter (Iter : Iterateur) return Boolean is
begin
if Iter.Utilise_Cle then
return (Iter.Indice = Eol);
else
return (Iter.Indice = Eol) and (Iter.Hash >= Max_Taille_Hash);
end if;
end End_Of_Iter;
function Is_Full (O : Object) return Boolean is
begin
return (O.Liste_Poste_Libre = Eol);
end Is_Full;
function Is_In (O : Object; I : Item) return Boolean is
P : Natural;
Key : Natural := Cle (I);
begin
P := O.Hashing (Hash (Key));
while P /= Eol loop
if Key = Cle (O.Tableau (P).Element) then
if O.Tableau (P).Element = I then
return True;
end if;
end if;
P := O.Tableau (P).Suivant;
end loop;
return False;
end Is_In;
end Table;
nblk1=7
nid=0
hdr6=e
[0x00] rec0=27 rec1=00 rec2=01 rec3=050
[0x01] rec0=20 rec1=00 rec2=07 rec3=04c
[0x02] rec0=1f rec1=00 rec2=06 rec3=00e
[0x03] rec0=1e rec1=00 rec2=05 rec3=01c
[0x04] rec0=1b rec1=00 rec2=04 rec3=02e
[0x05] rec0=1c rec1=00 rec2=03 rec3=00a
[0x06] rec0=22 rec1=00 rec2=02 rec3=001
tail 0x2154b4516879a5be3488f 0x42a00088462060003