Fixed broadcast UDP sockets not working on windows

[lcore.git] / lcore.pas

diff --git a/lcore.pas b/lcore.pas
index f6b0342410219fba55072aa7bf95c5a850661fff..99e633974383a075aa99c86854c3d6cb6b365bba 100755 (executable)
--- a/lcore.pas
+++ b/lcore.pas
@@ -35,7 +35,14 @@ interface
 \r
 \r
   const\r
-    receivebufsize=1460*8;\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
     absoloutemaxs:integer=0;\r
@@ -121,7 +128,7 @@ interface
 \r
       //procedure messageloop;\r
       function Receive(Buf:Pointer;BufSize:integer):integer; virtual;\r
-      procedure flush;virtual;{$ifdef win32} abstract;{$endif}\r
+      procedure flush;virtual;\r
       procedure dodatasent(wparam,lparam:longint);\r
       procedure doreceiveloop(wparam,lparam:longint);\r
       procedure sinkdata(sender:tobject;error:word);\r
@@ -490,7 +497,7 @@ var
 begin\r
   if state <> wsconnected then exit;\r
 \r
-  lensent := sendq.get(data,2920);\r
+  lensent := sendq.get(data,packetbasesize*2);\r
   if assigned(data) then result := myfdwrite(fdhandleout,data^,lensent) else result := 0;\r
 \r
   if result = -1 then lensent := 0 else lensent := result;\r
@@ -617,19 +624,20 @@ begin
   end;\r
 end;\r
 \r
-{$ifndef win32}\r
-  procedure tlasio.flush;\r
-  var\r
-    fds : fdset;\r
-  begin\r
-    fd_zero(fds);\r
-    fd_set(fdhandleout,fds);\r
-    while sendq.size>0 do begin\r
-      select(fdhandleout+1,nil,@fds,nil,nil);\r
-      if sendflush <= 0 then exit;\r
-    end;\r
-  end;\r
+procedure tlasio.flush;\r
+{$ifdef win32}\r
+type fdset = tfdset;\r
 {$endif}\r
+var\r
+  fds : fdset;\r
+begin\r
+  fd_zero(fds);\r
+  fd_set(fdhandleout,fds);\r
+  while sendq.size>0 do begin\r
+    select(fdhandleout+1,nil,@fds,nil,nil);\r
+    if sendflush <= 0 then exit;\r
+  end;\r
+end;\r
 \r
 procedure tlasio.dodatasent(wparam,lparam:longint);\r
 begin\r