// Function responsible of connecting the socket.
inline bool TCPSocket::connect()
{
bool return_value = false;
lock_ref().enter();
if ( socket_ref() != NULL && address_ref() != "" )
{
create_socket_info();
if ( WSAConnect(socket_ref(),reinterpret_cast<sockaddr*>(&socket_info_ref()),sizeof(socket_info_ref()),NULL,NULL,NULL,NULL) == 0 )
return_value = true;
}
lock_ref().leave();
return return_value;
};
NetworkInterface* networkinterface_new(Address* address, guint64 bwDownKiBps, guint64 bwUpKiBps,
gboolean logPcap, gchar* pcapDir, gchar* qdisc, guint64 interfaceReceiveLength) {
NetworkInterface* interface = g_new0(NetworkInterface, 1);
MAGIC_INIT(interface);
interface->address = address;
address_ref(interface->address);
/* interface speeds */
interface->bwUpKiBps = bwUpKiBps;
gdouble bytesPerSecond = (gdouble)(bwUpKiBps * 1024);
interface->timePerByteUp = (gdouble) (((gdouble)SIMTIME_ONE_SECOND) / bytesPerSecond);
interface->bwDownKiBps = bwDownKiBps;
bytesPerSecond = (gdouble)(bwDownKiBps * 1024);
interface->timePerByteDown = (gdouble) (((gdouble)SIMTIME_ONE_SECOND) / bytesPerSecond);
/* incoming packet buffer */
interface->inBuffer = g_queue_new();
interface->inBufferSize = interfaceReceiveLength;
/* incoming packets get passed along to sockets */
interface->boundSockets = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, descriptor_unref);
/* sockets tell us when they want to start sending */
interface->rrQueue = g_queue_new();
interface->fifoQueue = priorityqueue_new((GCompareDataFunc)_networkinterface_compareSocket, NULL, descriptor_unref);
/* parse queuing discipline */
if (qdisc && !g_ascii_strcasecmp(qdisc, "rr")) {
interface->qdisc = NIQ_RR;
} else {
interface->qdisc = NIQ_FIFO;
}
/* open the PCAP file for writing */
interface->logPcap = logPcap;
interface->pcapDir = pcapDir;
interface->pcapFile = NULL;
if(interface->logPcap) {
GString *filename = g_string_new("");
if (interface->pcapDir) {
g_string_append(filename, interface->pcapDir);
/* Append trailing slash if not present */
if (!g_str_has_suffix(interface->pcapDir, "/")) {
g_string_append(filename, "/");
}
} else {
/* Use default directory */
g_string_append(filename, "data/pcapdata/");
}
/* log status */
g_string_append_printf(filename, "%s-%s.pcap", address_toHostName(interface->address), address_toHostIPString(interface->address));
interface->pcapFile = fopen(filename->str, "w");
if(!interface->pcapFile) {
warning("error trying to open PCAP file '%s' for writing", filename->str);
} else {
_networkinterface_pcapInit(interface);
}
}
info("bringing up network interface '%s' at '%s', %"G_GUINT64_FORMAT" KiB/s up and %"G_GUINT64_FORMAT" KiB/s down using queuing discipline %s",
address_toHostName(interface->address), address_toHostIPString(interface->address), bwUpKiBps, bwDownKiBps,
interface->qdisc == NIQ_RR ? "rr" : "fifo");
return interface;
}