[gnet] free heap block

["erich steiger" <richard_III gmx net>]

i've compiled and run the example echoserver_gserver.c under win32 using
visual studio. if i run the program and connecting to the server, then
disconnecting and connecting again to the server, the server breaks and
visual studio shows the following output:

HEAP: Free Heap block 3c6c08 modified at 3c6d88 after it was freed

steps to reproduce:
1. start the server on port
2. start telnet to localhost on port
3. kill the telnet session
4. start another telnet session on port

it does also occure if i start the connection from anouther program using
gnet.

why does this occure? is this a failer? do i need anything else to freeing
memory to prevent this?

greetz 
richard

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