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//==========================================================================
//
//      socket.c
//
//      Simple test-case for the BSD socket API : echo on TCP port 7.
//
//==========================================================================
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// -------------------------------------------
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// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
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//####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    Simon Kallweit
// Contributors:
// Date:         2009-05-14
// Purpose:
// Description:  Simple test-case for the BSD socket API : echo on TCP port 7.
//
//####DESCRIPTIONEND####
//
//==========================================================================
 
#include <cyg/hal/hal_arch.h>
#include <cyg/infra/diag.h>
#include <cyg/infra/testcase.h>
 
#include <pkgconf/net_lwip.h>
 
#include <lwip.h>
#include <lwip/sockets.h>
 
#ifdef CYGFUN_LWIP_MODE_SEQUENTIAL
#if LWIP_SOCKET
#if LWIP_TCP
#if LWIP_COMPAT_SOCKETS
#if LWIP_POSIX_SOCKETS_IO_NAMES
 
#define TCP_PORT 7
 
#define STACK_SIZE CYGNUM_HAL_STACK_SIZE_TYPICAL
 
static char main_stack[STACK_SIZE];
static cyg_thread main_thread;
static cyg_handle_t main_handle;
 
static char socket_stack[STACK_SIZE];
 
static char buf[400];
 
static void socket_thread_entry(void *arg)
{
    int sock, s;
    int len;
    struct sockaddr_in addr, rem;
    socklen_t addrlen;
 
    sock = socket(AF_INET, SOCK_STREAM, 0);
    addr.sin_family = AF_INET;
    addr.sin_port = htons(TCP_PORT);
    addr.sin_addr.s_addr = INADDR_ANY;
 
    bind(sock, (struct sockaddr *) &addr, sizeof(addr));
 
    listen(sock, 5);
    while (1) {
        addrlen = sizeof(rem);
        s = accept(sock, (struct sockaddr *) &rem, &addrlen);
        while ((len = read(s, buf, 400)) > 0)
            write(s, buf, len);
        close(s);
    }
}
 
void main_thread_entry(cyg_addrword_t p)
{
    cyg_lwip_sequential_init();
    cyg_lwip_thread_new("socket", socket_thread_entry, NULL,
                        socket_stack, STACK_SIZE, 7);
}
 
void socket_main(void)
{
    CYG_TEST_INIT();
    CYG_TEST_INFO("Testing sockets");
    diag_printf("This test will echo TCP packets on local port %d\n", TCP_PORT);
 
    // Create a main thread, so we can run the scheduler and have time 'pass'
    cyg_thread_create(
        10,                 // Priority - just a number
        main_thread_entry,  // Entry
        0,                  // Entry parameter
        "main",             // Name
        main_stack,         // Stack
        STACK_SIZE,         // Size
        &main_handle,       // Handle
        &main_thread        // Thread data structure
    );
    cyg_thread_resume(main_handle);
    cyg_scheduler_start();
 
    CYG_TEST_FAIL_FINISH("Not reached");
}
 
externC void cyg_start(void)
{
    socket_main();
}
 
#else // LWIP_POSIX_SOCKETS_IO_NAMES
#define N_A_MSG "POSIX socket function names disabled"
#endif
 
#else // LWIP_COMPAT_SOCKETS
#define N_A_MSG "Compatible socket support disabled"
#endif // LWIP_COMPAT_SOCKETS
 
#else // LWIP_TCP
#define N_A_MSG "TCP support disabled"
#endif // LWIP_TCP
 
#else // LWIP_SOCKET
#define N_A_MSG "Socket support disabled"
#endif // LWIP_SOCKET
 
#else // CYGFUN_LWIP_MODE_SEQUENTIAL
#define N_A_MSG "Not configured in 'Sequential' mode"
#endif // CYGFUN_LWIP_MODE_SEQUENTIAL
 
#ifdef N_A_MSG
externC void
cyg_start(void)
{
    CYG_TEST_INIT();
    CYG_TEST_NA(N_A_MSG);
}
#endif // N_A_MSG