[Savannah-users] Query.

[Abhijith N M]

portCHAR server_address[] = "192.168.0.4";
#define PORT 100



int main( void )
{

 struct sockaddr_in stServeurSockAddr;
 portLONG lRetval;
 portLONG lSocket = -1;

 // 1) Configure system clocks.
 sysclk_init();

 // 2) Setup the GPIO in output for the board's LED.
 vParTestInitialise();

 // 3) Start Display task.
 vDisplay_Start(display_TASK_PRIORITY);

 // 4) Start the LED flash tasks just to provide visual feedback that the
 // demo is executing.
 vStartLEDFlashTasks( mainLED_TASK_PRIORITY );

 // 5) Start the ethernet tasks.
 //vStartEthernetTaskLauncher( configMAX_PRIORITIES );

  memset(&stServeurSockAddr, 0, sizeof(stServeurSockAddr));
  stServeurSockAddr.sin_len = sizeof(stServeurSockAddr);
  stServeurSockAddr.sin_addr.s_addr = inet_addr(server_address);
  stServeurSockAddr.sin_port = htons(PORT);
  stServeurSockAddr.sin_family = AF_INET;

  // socket as a stream
  lSocket= socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if( lSocket == -1 )
  {
   // socket failed, blink a LED and stay here
   for (;;) {
    vParTestToggleLED( 2 );
    vTaskDelay( 200 );
   }
  }
  socklen_t xSize = sizeof( stServeurSockAddr );


  if (bind(lSocket, (struct sockaddr *)&stServeurSockAddr, 
sizeof(stServeurSockAddr)) < 0) {
   // Problem setting up my end
   close(lSocket);
   return;
  }

 listen(lSocket,xBacklog);

 for( ;; )
 {

  //        xConnectedSocket = FreeRTOS_accept( xListeningSocket, &xClient, 
&xSize );
  //configASSERT( xConnectedSocket != FREERTOS_INVALID_SOCKET );
  accept( lSocket, &stServeurSockAddr, &xSize );
 }

 recv( lSocket, cTempBuffer,sizeof(cTempBuffer),0);

}



Above code I need to run to implement simple TCP server, but everytime socket() 
in main.c file returns -1, hence socket is not created.I need to solve this 
problem.



Changes:

 LWIP_PLATFORM_ASSERT(x) macro definition is commented in cc.h file. since its 
a do-while() and results in deadlock suggested from ATmel people.

 HTTP_USED ,SMTP_USED ,TFTP_USED macro are defined in FreeRTOSConfig.h file.

FREERTOS_USED defined  in FreeRTOSConfig.h file ( to Create the task that 
handles the MACB input packets.)





void *

#if !MEMP_OVERFLOW_CHECK

memp_malloc(memp_t type)

#else

memp_malloc_fn(memp_t type, const char* file, const int line)

#endif

{

struct memp *memp;

SYS_ARCH_DECL_PROTECT(old_level);



LWIP_ERROR("memp_malloc: type < MEMP_MAX", (type < MEMP_MAX), return NULL;);

SYS_ARCH_PROTECT(old_level);

#if MEMP_OVERFLOW_CHECK >= 2

memp_overflow_check_all();

#endif /* MEMP_OVERFLOW_CHECK >= 2 */

memp = memp_tab[type];



if (memp != NULL) {

memp_tab[type] = memp->next;

#if MEMP_OVERFLOW_CHECK

memp->next = NULL;

memp->file = file;

memp->line = line;

#endif /* MEMP_OVERFLOW_CHECK */

MEMP_STATS_INC_USED(used, type);

LWIP_ASSERT("memp_malloc: memp properly aligned",

((mem_ptr_t)memp % MEM_ALIGNMENT) == 0);

memp = (struct memp*)(void *)((u8_t*)memp + MEMP_SIZE);

} else {

LWIP_DEBUGF(MEMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("memp_malloc: out of memory 
in pool %s\n", memp_desc[type]));

MEMP_STATS_INC(err, type);

}

SYS_ARCH_UNPROTECT(old_level);

return memp;

}





In the above code memp is always returned as null.





struct netconn*

netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto, 
netconn_callback callback)

{

struct netconn *conn;

struct api_msg msg;

conn = netconn_alloc(t, callback);

if (conn != NULL) {

msg.function = do_newconn;

msg.msg.msg.n.proto = proto;

msg.msg.conn = conn;

if (TCPIP_APIMSG(&msg) != ERR_OK) {

LWIP_ASSERT("freeing conn without freeing pcb", conn->pcb.tcp == NULL);

LWIP_ASSERT("conn has no op_completed", sys_sem_valid(&conn->op_completed));

LWIP_ASSERT("conn has no recvmbox", sys_mbox_valid(&conn->recvmbox));

#if LWIP_TCP

LWIP_ASSERT("conn->acceptmbox shouldn't exist", 
!sys_mbox_valid(&conn->acceptmbox));

#endif /* LWIP_TCP */

sys_sem_free(&conn->op_completed);

sys_mbox_free(&conn->recvmbox);

memp_free(MEMP_NETCONN, conn);

return NULL;

}

}

return conn;

}



In the above code conn is always returned as NULL.





Please let me know what can be done to resolve the Issue and implemnet EVK1105 
as tcp server.



Thanks and Regards

Abhijith N.M.

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