- Add queue for connections objects in order to buffer packets that have arrived but have no corresponding receive requests to be assigned to. We buffer these packets to avoid giving a timeout that could cause throughput slowdowns.
svn path=/branches/GSoC_2011/TcpIpDriver/; revision=52864
- Modify the signatures of the lwIP wrapper interfaces. This is the first step toward fixing some nasty crashes related to race conditions.
[TCPIP]
- Call the new lwIP wrapper interfaces appropriately.
svn path=/branches/GSoC_2011/TcpIpDriver/; revision=52767
- fix crash caused by a race condition when trying to close a socket
- move timer hack from sys_arch.c to timers.c because there it gives best performance (will have to get rid of it at some point though)
- when closing a socket only mask out the receive and accept callbacks (as they can cause of a crash when closing a socket). The rest of the callbacks are left alone because they may be used.
[TCPIP]
- merge r52698
- remove some DbgPrint calls that are now useless since the bug they were introduced to help discover has been fixed
svn path=/branches/GSoC_2011/TcpIpDriver/; revision=52712
apply changes r52501 for lwIP branch
- Fix binding to an unspecified port on a connect so that it works reliably by asking the TCP library for a free port instead of assuming that one we have is free
- Fix binding to an unspecified port on a listen which previously would result in the address file not having information stored about the port number assigned
- Fix a nasty bug which resulted in us binding to an arbitrary port during a connect even when the client wanted a specific port
svn path=/branches/GSoC_2011/TcpIpDriver/; revision=52517
- Abort the connection if the socket is not in LISTEN state, instead of closing it
[TCPIP]
- move redundant socket closure where so we don't try to free uninitialized variable
- in case our socket got closed or for some reason doesn't exist return a default success
svn path=/branches/GSoC_2011/TcpIpDriver/; revision=52395
- Call the completion handler asynchronously to avoid a deadlock if AFD issues a synchronous request in its completion function
- Complete all pending requests before closing the socket
- Fixes send and receive on accepted sockets
svn path=/branches/GSoC_2011/TcpIpDriver/; revision=52307
- Implement LibTCPShutdown
[IP]
- Replace an incredibly broken implementation of TCPDisconnect which caused memory corruption with a working one using LibTCPShutdown
svn path=/branches/GSoC_2011/TcpIpDriver/; revision=52200
[FORMATTING]
This is just a code formatting phase. I reordered some of the code and put some debugging DbgPrint-s in order to help understand the control and data flow. Working on trying to stop the system from crashing when server socket gets closed.
svn path=/branches/GSoC_2011/TcpIpDriver/; revision=52042
Fixed an error in the accepting code (in rostcp.c line 576). tcp_accepted was being called for the wrong pcb. Instead of the pcb belonging to the listening socket it was being called for the pcb belonging to the newly created connection socket. In order to fix this I added an extra field to the tcp_pcb structure to hold a reference to the listening socket. This is a crude method and it will be replaced by something more elegant.
Right now however there's a slight nondeterminism regarding the connection. One it's established the message either gets through to the other side or not, randomly. This could be due to a race condition of some sorts.
Also another problem is that the server side brings down the system when closing.
svn path=/branches/GSoC_2011/TcpIpDriver/; revision=51889
- Rewrite most of the lower TCP layer code to work with lwIP
[LWIP]
- Write all of the implementation-specific code and headers
[TCPIP]
- Add assertions in the object reference functions
- Remove the completion queue hack
This is still isn't totally finished yet. There are still two main issues that need to be overcome: listen/accept don't work at all and the performance is horrible.
I hope that once I tune some of the options, I can get it to perform reasonably well. If any curious testers want to try this out, be my guest but realize that not
a lot of apps will work yet. Suggestions are welcome! :)
svn path=/branches/tcp-rewrite-branch/; revision=48840
