socket accept error

[GFYsweetwood]

Hi,
Everyone!

I got a problem:socket accept error

exec the below

iListenSckt.Accept( iDataSckt, iStatus );

the emulator exit!

I guess that:the iDataSckt didn't connected


Because I hava no right to upload attachment,I put my code on the mail in the Drafts,
the subject is "socket accept error",please download the attachment and give me a hand,thank you very much!

www.gmail.com
usr: opensymbian@gmail.com
pwd: ilovesymbian

I use s60 3rd FP2 SDK.

[wizard_hu_]

Have you already done the usual steps as:
- enabling panic codes (http://wiki.forum.nokia.com/index.ph...ded_panic_code)
- checking "last words" of the emulator in its log (http://wiki.forum.nokia.com/index.php/Epocwind.out) ?
Note that if you are starting your executable directly (so not via its icon in the emulator), it is normal that the whole emulator shuts down when your code panics (more about this topic: http://wiki.forum.nokia.com/index.ph...arbide.c%2B%2B).

[GFYsweetwood]

wizard_hu_,thank you very much!

I had to do according to your.

but the emulator can not catch the panic, the Epocwind.out "last words" is:

13.415 Thread Console::Console Panic ESock_client 7
13.415 TeUtl: ECN.HandleCallBack.<
13.415 TeUtl: ECN.DoHandleCallBack.<
13.415 TeUtl: ECN.DoHandleCallBack.>
13.415 TeUtl: ECN.HandleCallBack.>
13.415 WSOCK: ServProvider: [0D4659FC] Shutdown(00000003)
13.415 WSOCK: ServProvider: [0D4659FC] destroyed
13.415 WSOCK: ServProvider: [0D46516C] Shutdown(00000003)
13.415 WSOCK: ServProvider: [0D46516C] destroyed


I also find below messages in Epocwind.out:
12.900 *PlatSec* WARNING - Capability check would have failed - A Message (function number=0x00000006) from Thread Console[edb84009]0001::Console, sent to Server !ecomserver, was checked by Thread ecomserver.EXE[10009d8f]0001::!ecomserver and was found to be missing the capabilities: TCB . Additional diagnostic message: ECOM: Client (edb84009) may not access plugin implementation (101fd65a_v1)
12.900 *PlatSec* WARNING - Capability check would have failed - Process Console[edb84009]0001 can't load Z:\sys\bin\avkonfep.dll because the following capabilities are missing: TCB
12.900 *PlatSec* WARNING - Capability check would have failed - A Message (function number=0x00000002) from Thread Console[edb84009]0001::Console, sent to Server !ecomserver, was checked by Thread ecomserver.EXE[10009d8f]0001::!ecomserver and was found to be missing the capabilities: TCB . Additional diagnostic message: ECOM: Client (edb84009) may not access plugin implementation (10285839_v1)
12.900 *PlatSec* WARNING - Capability check would have failed - A Message (function number=0x00000006) from Thread Console[edb84009]0001::Console, sent to Server !ecomserver, was checked by Thread ecomserver.EXE[10009d8f]0001::!ecomserver and was found to be missing the capabilities: TCB . Additional diagnostic message: ECOM: Client (edb84009) may not access plugin implementation (10285839_v1)
12.905 *PlatSec* WARNING - Capability check would have failed - Process Console[edb84009]0001 can't load Z:\sys\bin\aknfepuiavkonplugin.dll because the following capabilities are missing: TCB



I add all capability to mmp file,but it doesn't work!


I write a socketengine inherit from CActive,

when exec this code "iListenSckt.Accept( iDataSckt, iStatus );"

the socket iDataSckt didn't connect ok and the emulator exit.


Please check my code and give me a hand,very very thanks!

www.gmail.com
usr: opensymbian@gmail.com
pwd: ilovesymbian

[wizard_hu_]

The emulator+debugger can catch the panic, if you enable Just In Time debugging in the preferences of the emulator.
Anyway, if you code is called "Console", you have ESock_client 7 panic:

13.415 Thread Console::Console Panic ESock_client 7

That is the one you should fix.
Do you have any special reason for restricting the accepted inbound connections to your own host? If not, consider forgetting that iAddr-magic (which probably does not work), and replace the Bind with a SetLocalPort.

[GFYsweetwood]

wizard_hu_,thank you very much!

But what's the "ESock_client 7 panic"?


I have a few days to solve this "socket accept error" problem,
However, no progress has been made,I'm really urgent.


Please give me a hand, very thanks!

[savaj]

Also *PlatSec* WARNING says "following capabilities are missing: TCB", And if you are using TCB then you have to sign your appliaction with symbian signing, because developer/open signed certificate will not work with Manufacturer-approved capabilities.

[GFYsweetwood]

savaj:
Thank you very much!


But I just write a simple application, run it on emulator,
default, we have all capabilities.


We also have the "TCB" capability on the emulator?


That's crazy!

[wizard_hu_]

Have you tried SetLocalPort instead of Bind?

[GFYsweetwood]

wizard_hu_, thank you so much!

I tried SetLocalPort instead of Bind, but it didn't work.

User::LeaveIfError( iListenSckt.Open( iScktServ, KAfInet, KSockStream, KProtocolInetTcp ) );
	//User::LeaveIfError( iListenSckt.Bind( iAddr ) );
	
	User::LeaveIfError( iListenSckt.SetLocalPort( 346 ) );
	User::LeaveIfError( iListenSckt.Listen( 1 ) );
	iListenSckt.Accept( iDataSckt, iStatus );

when exec the Accept method, the emulator exit.


Please download my code and find the reason,
I really have no way to solve this problem, I'm going to crazy!

Dear friend,thank you so much!

[qxiaoyuan]

1. because tcp port < 1024 is reserved by system, so normally not use the tcp port, u can try 3456 or other bigger port.

2. I suggest you that use RConnection class, so the
User::LeaveIfError( iListenSckt.Open( iScktServ, KAfInet, KSockStream, KProtocolInetTcp )

change to

User::LeaveIfError( iListenSckt.Open( iScktServ, KAfInet, KSockStream, KProtocolInetTcp, iConnection ) etc

3. iDataSckt is which you need open too, so before accept, you need call iDataSckt.Open

4. make sure that you have CActiveSchedule

and next is my some code with listen, hope it is help to you

TBool CListenSocket::ListenL()
{
	User::LeaveIfError(iListenSocket.Open( *(iIapEngine->GetSocketServ()), KAfInet, KSockStream, 
	                                        KProtocolInetTcp, *(iIapEngine->GetConnection()) ));

    const TInt LISTEN_MIN = 6000;
    const TInt LISTEN_MAX = 7000;
    TUint port = LISTEN_MIN;
    for ( ; port < LISTEN_MAX; port++)
    {
        iListenAddr.SetPort(port);
        if ( iListenSocket.Bind(iListenAddr) == KErrNone )
        {
            break;
        }
    }
    if ( port >= LISTEN_MAX )
    {
        iListenSocket.Close();
        return EFalse;
    }
    
	iListenSocket.Listen(1);
	// Create blank socket
	iAcceptSocket.Open(*(iIapEngine->GetSocketServ()));

	// Issue an accept
	iListenSocket.Accept(iAcceptSocket, iStatus);
	SetActive();

ps. there is chinese discussion board, you can use chinese

[s.ivanushkin]

You should open blank socket for accept:
Please try following:

User::LeaveIfError(iClSocket->Open(iSocketServ));
iSocket.Accept(*iClSocket, iStatus);