Thread and Socket.

[kathyayini]

Hi,
I called "TP_CALL" function in a thread which will send the data on the particular port to server and should receive the data. Currently the program sends the data properly but is not waiting till the data comes back (recv()). and the thread terminates.
Please help me out.

void* TP_CALL(void* data)
{
int bytesSent;
int condition = 0;
int i=0;

memset(&sd, '\0', sizeof(sd));
memset(cSendBuf, '\0', 2000);
strcpy(cSendBuf,"");

for (i=0; i<((struct sdata*) (data))->ibytes; i++)
{
if(((struct sdata*) (data))->cmsg < ' ') printf("."); else printf("%c", ((struct sdata*) (data))->cmsg);
}

bytesSent=send(((struct sdata*) (data))->sock_id,((struct sdata*) (data))->cmsg,((struct sdata*) (data))->ibytes,0);

int z=recv(((struct sdata*) (data))->sock_id,cSendBuf,MESSAGE_LENGTH,MSG_NOSIGNAL);

memcpy(&sd,cSendBuf,z);
for (i=0; i<z; i++)
{
if(sd.cstrmsg < ' ') printf("."); else printf("%c", sd.cstrmsg);
}
}

waiting for the reply.

 

[Salem]

1. Please use the [ignore]

[/ignore] tags when posting code.

2. Remove all of those casts, by declaring a suitable local variable.

void* TP_CALL(void* ptr)
{
        struct sdata *data = ptr;
        int bytesSent;
        int condition = 0;
        int i=0;

        memset(&sd, '\0', sizeof(sd));
        memset(cSendBuf, '\0', 2000);
        strcpy(cSendBuf,"");

        for (i=0; i<data->ibytes; i++)

3. What value is z after this call?

int z=recv(data->sock_id,cSendBuf,MESSAGE_LENGTH,MSG_NOSIGNAL);

Knowing the status result would help in figuring out why it's not working.

--

 

[kathyayini]

Upto "bytesSent" it gets printed after that nothing is getting printed.

 

[Salem]

I mean

int z=recv(data->sock_id,cSendBuf,MESSAGE_LENGTH,MSG_NOSIGNAL);
printf( "recv returned status=%d\n", z );

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