+ Added example 66

docs/linuxex/Makefile

@@ -36,8 +36,7 @@ OBJECTS=ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 ex10 ex11 ex12 ex13 ex14 \
         ex15 ex16 ex17 ex18 ex19 ex20 ex21 ex22 ex23 ex24 ex25 ex26 ex27 \
         ex28 ex29 ex30 ex31 ex32 ex33 ex34 ex35 ex36 ex37 ex38 ex39 ex40 \
         ex41 ex42 ex43 ex44 ex45 ex46 ex47 ex48 ex49 ex51 ex52 ex53 ex54 ex55 \
-        ex56 ex57 ex58 ex59  ex60 ex61 ex62 ex63  ex64 ex65
-# ex66 \
+        ex56 ex57 ex58 ex59  ex60 ex61 ex62 ex63  ex64 ex65 ex66
 #        ex67 ex68 ex69 ex70 ex71 ex72 ex73 ex74 ex75 ex76 ex77
 
 TEXOBJECTS=$(addsuffix .tex, $(OBJECTS))

docs/linuxex/README

@@ -61,9 +61,10 @@ ex57.pp contains an example of the SigAction function.
 ex58.pp contains an example of the Signal function.
 ex59.pp contains an example of the Alarm function.
 ex60.pp contains an example of the GetDateTime function.
-serial.pp contains an example of serial port programming in FPC.
 ex61.pp contains an example of the CreateShellArgV function.
 ex62.pp contains an example of the ReadLink function.
 ex63.pp contains an example of the FRename function.
 ex64.pp contains an example of the SysInfo function.
 ex64.pp contains an example of the SigRaise function.
+ex66.pp contains an example of the MMap function.
+serial.pp contains an example of serial port programming in FPC.

docs/linuxex/ex66.pp

@@ -0,0 +1,37 @@
+Program Example66;
+
+{ Program to demonstrate the MMap function. }
+
+Uses linux;
+
+Var S : String;
+    fd,Len : Longint;
+    args : tmmapargs;
+    P : PChar;
+        
+begin
+  S:='This is a string'#0;
+  Len:=Length(S);
+  fd:=fdOpen('testfile.txt',Open_wrOnly or open_creat);
+  If fd=-1 then 
+    Halt(1);
+  If fdWrite(fd,S[1],Len)=-1 then
+    Halt(2);
+  fdClose(fd);
+  fdOpen('testfile.txt',Open_rdOnly);
+  if fd=-1 then
+    Halt(3);
+  args.address:=0;
+  args.offset:=0;
+  args.size:=Len+1;
+  args.fd:=Fd;
+  args.flags:=MAP_PRIVATE;
+  args.prot:=PROT_READ or PROT_WRITE;
+  P:=Pchar(mmap(args));
+  If longint(P)=-1 then
+    Halt(4);
+  Writeln('Read in memory  :',P);
+  fdclose(fd);
+  if Not MUnMap(P,Len) Then
+    Halt(LinuxError);
+end.