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FilesTest.Mod
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FilesTest.Mod
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MODULE FilesTest; (*TK 18.10.2018 Testing Read/Write Bytes with COPY*)
IMPORT S := SYSTEM, Files := Files2, O := Out;
TYPE
R1 = POINTER TO R1Desc;
R2 = POINTER TO R2Desc;
R3 = POINTER TO R3Desc;
R4 = POINTER TO R4Desc;
R1Desc = RECORD a, b, c, d: CHAR END;
R2Desc = RECORD a: ARRAY 2 OF CHAR; b: ARRAY 2 OF CHAR END;
R3Desc = RECORD a: ARRAY 1 OF CHAR; b: ARRAY 1 OF CHAR; c: ARRAY 1 OF CHAR; d: ARRAY 1 OF CHAR END;
R4Desc = RECORD a: ARRAY 3 OF INTEGER END;
A1 = ARRAY 1 OF BYTE;
A2 = ARRAY 2 OF BYTE;
A3 = ARRAY 3 OF BYTE;
A4 = ARRAY 4 OF BYTE;
A5 = ARRAY 5 OF BYTE;
A7 = ARRAY 7 OF BYTE;
A8 = ARRAY 3 OF INTEGER; BufA8 = ARRAY S.SIZE(A8) OF BYTE;
Buf = ARRAY 16 OF BYTE;
Buf1K = ARRAY 1024 OF BYTE;
VAR f, F: Files.File; r, R: Files.Rider; ch: CHAR;
r1: R1; r2: R2; r3: R3; r4: R4; buf: Buf; buf1k: Buf1K;
a1: A1; a2: A2; a3: A3; a4: A4; a5: A5; a7: A7; a8: A8;
PROCEDURE Dump(VAR a: ARRAY OF BYTE);
VAR i: INTEGER;
BEGIN FOR i := 0 TO LEN(a)-1 DO O.Char(CHR(a[i])) END ; O.Ln
END Dump;
PROCEDURE Clear(VAR a: ARRAY OF BYTE; fill: BYTE);
VAR i: INTEGER;
BEGIN FOR i := 0 TO LEN(a)-1 DO a[i] := fill END
END Clear;
PROCEDURE Size;
BEGIN (*report size of structs & arrays*)
O.Int(S.SIZE(R1Desc), 4); O.Int(S.SIZE(R2Desc), 4);
O.Int(S.SIZE(R3Desc), 4); O.Int(S.SIZE(R4Desc), 4); O.Ln;
O.Int(S.SIZE(A1), 4); O.Int(S.SIZE(A2), 4); O.Int(S.SIZE(A3), 4);
O.Int(S.SIZE(A4), 4); O.Int(S.SIZE(A5), 4); O.Ln
END Size;
PROCEDURE Read*;
BEGIN Size;
(*file size < SS*)
F := Files.Old("FilesTest"); Files.Set(R, F, 0);
(*structs*)
Clear(buf, 0); Files.ReadBytes(R, buf, S.SIZE(R1Desc)); Dump(buf);
r1 := S.VAL(R1, S.ADR(buf));
O.Char(r1.a); O.Char(r1.b); O.Char(r1.c); O.Char(r1.d); O.Ln;
Clear(buf, 0); Files.ReadBytes(R, buf, S.SIZE(R2Desc)); Dump(buf);
r2 := S.VAL(R2, S.ADR(buf));
O.Char(r2.a[0]); O.Char(r2.a[1]); O.Char(r2.b[0]); O.Char(r2.b[1]); O.Ln;
Clear(buf, 0); Files.ReadBytes(R, buf, S.SIZE(R3Desc)); Dump(buf);
r3 := S.VAL(R3, S.ADR(buf));
O.Char(r3.a[0]); O.Char(r3.b[0]); O.Char(r3.c[0]); O.Char(r3.d[0]); O.Ln;
Clear(buf, 0); Files.ReadBytes(R, buf, S.SIZE(R4Desc));
r4 := S.VAL(R4, S.ADR(buf)); O.Int(r4.a[0], 4); O.Int(r4.a[1], 4); O.Int(r4.a[2], 4); O.Ln;
O.Bool(R.eof); O.Int(R.res, 3); O.Ln;
(*arrays*)
Files.ReadBytes(R, a7, LEN(a7)); Dump(a7);
Files.ReadBytes(R, a1, LEN(a1)); Dump(a1);
Files.ReadBytes(R, a2, LEN(a2)); Dump(a2);
Files.ReadBytes(R, a3, LEN(a3)); Dump(a3);
Files.ReadBytes(R, a4, LEN(a4)); Dump(a4);
Files.ReadBytes(R, a5, LEN(a5)); Dump(a5);
Files.ReadBytes(R, S.VAL(BufA8, a8), S.SIZE(A8)); O.Int(a8[0], 4); O.Int(a8[1], 4); O.Int(a8[2], 4); O.Ln;
O.Bool(R.eof); O.Int(R.res, 3); O.Ln;
(*file size > SS*)
Files.Read(R, ch); Files.Read(R, ch); (*move to word boundary pos=76*) O.Int(Files.Pos(R), 3);
Clear(buf1k, 0); Files.ReadBytes(R, buf1k, LEN(buf1k)); Dump(buf1k);
O.Bool(R.eof); O.Int(R.res, 4); O.Ln;
Clear(buf1k, 0); Files.ReadBytes(R, buf1k, (*LEN(buf1k)*) 254); Dump(buf1k);
O.Bool(R.eof); O.Int(R.res, 4); O.Ln
END Read;
PROCEDURE Write*;
BEGIN Size;
(*file size < SS*)
F := Files.New("FilesTest2"); Files.Set(R, F, 0);
(*structs*)
Clear(buf, ORD(".")); r1 := S.VAL(R1, S.ADR(buf));
r1.a := "a"; r1.b := "b"; r1.c := "c"; r1.d := "d"; Dump(buf);
Files.WriteBytes(R, buf, S.SIZE(R1Desc));
Clear(buf, ORD(".")); r2 := S.VAL(R2, S.ADR(buf));
r2.a[0] := "a"; r2.a[1] := "a"; r2.b[0] := "b"; r2.b[1] := "b"; Dump(buf);
Files.WriteBytes(R, buf, S.SIZE(R2Desc));
Clear(buf, ORD(".")); r3 := S.VAL(R3, S.ADR(buf));
r3.a[0] := "a"; r3.b[0] := "b"; r3.c[0] := "c"; r3.d[0] := "d"; Dump(buf);
Files.WriteBytes(R, buf, S.SIZE(R3Desc));
Clear(buf, 0); r4 := S.VAL(R4, S.ADR(buf));
r4.a[0] := 111H; r4.a[1] := 222H; r4.a[2] := 333H; O.Int(r4.a[0], 4); O.Int(r4.a[1], 4); O.Int(r4.a[2], 4); O.Ln;
Files.WriteBytes(R, buf, S.SIZE(R4Desc));
(*arrays*)
Clear(a7, ORD("7")); Dump(a7);
Files.WriteBytes(R, a7, LEN(a7));
Clear(a1, ORD("1")); Dump(a1);
Files.WriteBytes(R, a1, LEN(a1));
Clear(a2, ORD("2")); Dump(a2);
Files.WriteBytes(R, a2, LEN(a2));
Clear(a3, ORD("3")); Dump(a3);
Files.WriteBytes(R, a3, LEN(a3));
Clear(a4, ORD("4")); Dump(a4);
Files.WriteBytes(R, a4, LEN(a4));
Clear(a5, ORD("5")); Dump(a5);
Files.WriteBytes(R, a5, LEN(a5));
a8[0] := 111H; a8[1] := 222H; a8[2] := 333H; O.Int(a8[0], 4); O.Int(a8[1], 4); O.Int(a8[2], 4); O.Ln;
Files.WriteBytes(R, S.VAL(BufA8, a8), S.SIZE(A8));
(*file size > SS*)
f := Files.Old("FilesTest"); Files.Set(r, f, 76); (*move to word boundary*) Files.Write(R, "."); Files.Write(R, ".");
Clear(buf1k, 0); Files.ReadBytes(r, buf1k, LEN(buf1k)); Dump(buf1k);
Files.WriteBytes(R, buf1k, LEN(buf1k));
Clear(buf1k, 0); Files.ReadBytes(r, buf1k, (*LEN(buf1k)*) 254); Dump(buf1k);
Files.WriteBytes(R, buf1k, LEN(buf1k));
Files.Register(F)
END Write;
END FilesTest.
FilesTest.Read
FilesTest.Write