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list-nodes.c

/* A minimalist Verse example. Ask server for nodes, print information. */

#include <stdio.h>
#include <stdlib.h>

#include "verse.h"      /* Bring in the Verse API. */

/* A callback for connection acception: will be called when server accepts this client. */
static void callback_accept_connect(void *user, uint32 avatar, void *address, void *connection, uint8 *host_id)
{
    uint32 i, mask = 0;

    printf("Connected to a Verse host!\n\nListing nodes:\n");

    /* Build node subscription mask. */
    for(i = 0; i < V_NT_NUM_TYPES; i++)
        mask |= 1 << i;
    verse_send_node_index_subscribe(mask);     /* Request listing of all nodes. */
}

/* A callback for node creation: is called to report information about existing nodes, too. */
static void callback_node_create(void *user, VNodeID node_id, VNodeType type, VNodeOwner ownership)
{
    printf(" Node #%u has type %u\n", node_id, type);
}

int main(void)
{
    /* Register callbacks for interesting commands. */
    verse_callback_set(verse_send_connect_accept, callback_accept_connect, NULL);
    verse_callback_set(verse_send_node_create,    callback_node_create, NULL);

    /* Kick off program by connecting to Verse host on local machine. */
    verse_send_connect("list-nodes", "<secret>", "localhost", NULL);
    while(TRUE)
        verse_callback_update(10000);   /* Listen to network, get callbacks. */

    return EXIT_SUCCESS;    /* This is never reached. */
}

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