Merged with delphi 2010 branch

[lcore.git] / lcore.pas

diff --git a/lcore.pas b/lcore.pas
index da0fd66b89365b4272b74707dd40de189c7f2f58..0f6eaef5025a5cbf3a9b8db87bf33b047108c24e 100755 (executable)
--- a/lcore.pas
+++ b/lcore.pas
@@ -26,16 +26,22 @@ interface
       {$ifdef VER1_0}\r
         linux,\r
       {$else}\r
-        baseunix,unix,unixutil,\r
+        baseunix,unix,unixutil,sockets,\r
       {$endif}\r
       fd_utils,\r
     {$endif}\r
-    classes,pgtypes,bfifo;\r
+    classes,pgtypes,bfifo,ltimevalstuff;\r
   procedure processtasks;\r
 \r
 \r
   const\r
-    packetbasesize = 1460;\r
+    {how this number is made up:\r
+    - ethernet: MTU 1500\r
+    - be safe for either "ethernet v1" or "PPPoE", both take 8 bytes\r
+    - IPv6 header: 40 bytes (IPv4 is 20)\r
+    - TCP/UDP header: 20 bytes\r
+    }\r
+    packetbasesize = 1432;\r
     receivebufsize=packetbasesize*8;\r
 \r
   var\r
@@ -67,8 +73,9 @@ interface
     TSendData          = procedure (Sender: TObject; BytesSent: Integer) of object;\r
 \r
     tlcomponent = class(tcomponent)\r
+    private\r
+      procedure releasetaskhandler(wparam,lparam:longint);\r
     public\r
-      released:boolean;\r
       procedure release; virtual;\r
       destructor destroy; override;\r
     end;\r
@@ -88,8 +95,6 @@ interface
       onsenddata         : tsenddata      ;\r
       ondatasent         : tsocketevent      ;\r
       //connected          : boolean         ;\r
-      nextasin           : tlasio            ;\r
-      prevasin           : tlasio            ;\r
 \r
       recvq              : tfifo;\r
       OnBgException      : TBgExceptionEvent ;\r
@@ -101,7 +106,7 @@ interface
       lasterror:integer;\r
       destroying:boolean;\r
       recvbufsize:integer;\r
-      function receivestr:string; virtual;\r
+      function receivestr:tbufferstring; virtual;\r
       procedure close;\r
       procedure abort;\r
       procedure internalclose(error:word); virtual;\r
@@ -114,8 +119,8 @@ interface
       procedure dup(invalue:longint);\r
 \r
       function sendflush : integer;\r
-      procedure sendstr(const str : string);virtual;\r
-      procedure putstringinsendbuffer(const newstring : string);\r
+      procedure sendstr(const str : tbufferstring);virtual;\r
+      procedure putstringinsendbuffer(const newstring : tbufferstring);\r
       function send(data:pointer;len:integer):integer;virtual;\r
       procedure putdatainsendbuffer(data:pointer;len:integer); virtual;\r
       procedure deletebuffereddata;\r
@@ -149,12 +154,6 @@ interface
   var\r
     timerwrapperinterface : ttimerwrapperinterface;\r
   type\r
-    {$ifdef win32}\r
-      ttimeval = record\r
-        tv_sec : longint;\r
-        tv_usec : longint;\r
-      end;\r
-    {$endif}\r
     tltimer=class(tlcomponent)\r
     protected\r
 \r
@@ -221,7 +220,6 @@ procedure messageloop;
 procedure exitmessageloop;\r
 \r
 var\r
-  firstasin                             : tlasio     ;\r
   firsttimer                            : tltimer    ;\r
   firsttask  , lasttask   , currenttask : tltask     ;\r
 \r
@@ -256,7 +254,6 @@ implementation
 {$ifndef win32}\r
   {$include unixstuff.inc}\r
 {$endif}\r
-{$include ltimevalstuff.inc}\r
 \r
 \r
 {!!! added sleep call -beware}\r
@@ -279,12 +276,15 @@ begin
   inherited destroy;\r
 end;\r
 \r
-\r
+procedure tlcomponent.releasetaskhandler(wparam,lparam:longint);\r
+begin\r
+  free;\r
+end;\r
 \r
 \r
 procedure tlcomponent.release;\r
 begin\r
-  released := true;\r
+  addtask(releasetaskhandler,self,0,0);\r
 end;\r
 \r
 procedure tlasio.release;\r
@@ -337,26 +337,12 @@ begin
   state := wsclosed;\r
   fdhandlein := -1;\r
   fdhandleout := -1;\r
-  nextasin := firstasin;\r
-  prevasin := nil;\r
-  if assigned(nextasin) then nextasin.prevasin := self;\r
-  firstasin := self;\r
-\r
-  released := false;\r
 end;\r
 \r
 destructor tlasio.destroy;\r
 begin\r
   destroying := true;\r
   if state <> wsclosed then close;\r
-  if prevasin <> nil then begin\r
-    prevasin.nextasin := nextasin;\r
-  end else begin\r
-    firstasin := nextasin;\r
-  end;\r
-  if nextasin <> nil then begin\r
-    nextasin.prevasin := prevasin;\r
-  end;\r
   recvq.free;\r
   sendq.free;\r
   inherited destroy;\r
@@ -399,6 +385,9 @@ end;
 procedure tlasio.internalclose(error:word);\r
 begin\r
   if (state<>wsclosed) and (state<>wsinvalidstate) then begin\r
+    // -2 is a special indication that we should just exist silently\r
+    // (used for connect failure handling when socket creation fails)\r
+    if (fdhandlein = -2) and (fdhandleout = -2) then exit;\r
     if (fdhandlein < 0) or (fdhandleout < 0) then raise exception.create('internalclose called with invalid fd handles');\r
     eventcore.rmasterclr(fdhandlein);//fd_clr(fdhandlein,fdsrmaster);\r
     eventcore.wmasterclr(fdhandleout);//fd_clr(fdhandleout,fdswmaster);\r
@@ -453,13 +442,13 @@ begin
   end;\r
 end;\r
 \r
-procedure tlasio.sendstr(const str : string);\r
+procedure tlasio.sendstr(const str : tbufferstring);\r
 begin\r
   putstringinsendbuffer(str);\r
   sendflush;\r
 end;\r
 \r
-procedure tlasio.putstringinsendbuffer(const newstring : string);\r
+procedure tlasio.putstringinsendbuffer(const newstring : tbufferstring);\r
 begin\r
   if newstring <> '' then putdatainsendbuffer(@newstring[1],length(newstring));\r
 end;\r
@@ -489,7 +478,10 @@ var
 //  fdstestr : fdset;\r
 //  fdstestw : fdset;\r
 begin\r
-  if state <> wsconnected then exit;\r
+  if state <> wsconnected then begin\r
+    result := -1;\r
+    exit;\r
+  end;\r
 \r
   lensent := sendq.get(data,packetbasesize*2);\r
   if assigned(data) then result := myfdwrite(fdhandleout,data^,lensent) else result := 0;\r
@@ -567,7 +559,16 @@ begin
           internalclose(0);\r
 \r
         end else begin\r
-          internalclose({$ifdef win32}getlasterror{$else}linuxerror{$endif});\r
+          {$ifdef win32}\r
+          if getlasterror=WSAEWOULDBLOCK then begin\r
+            //the asynchronous nature of windows messages means we sometimes\r
+            //get here with the buffer full\r
+            //so do nothing in that case\r
+          end else\r
+          {$endif}\r
+          begin\r
+            internalclose({$ifdef win32}getlasterror{$else}linuxerror{$endif});\r
+          end  \r
         end;\r
       end;\r
 \r
@@ -734,8 +735,6 @@ begin
   end;\r
   interval := 1000;\r
   enabled := true;\r
-  released := false;\r
-\r
 end;\r
 \r
 destructor tltimer.destroy;\r
@@ -886,7 +885,6 @@ end;
 \r
 \r
 begin\r
-  firstasin := nil;\r
   firsttask := nil;\r
   \r
 \r