/**
* Establish a connection with a server.
* \param server the server to connect to, in the form
* "protocol://servername:port" where the port specifier
* is optional and if the protocol is missing it is assumed
* to be "tcpip".
* \param default_port the port to connect to, if port not specified in the
* server URL string.
* \param mtu desired maximum transmission unit size (in bytes)
*/
CRConnection *
crNetConnectToServer( const char *server, unsigned short default_port, int mtu)
{
char hostname[4096], protocol[4096];
unsigned short port;
CRConnection *conn;
crDebug( "In crNetConnectToServer( \"%s\", port=%d, mtu=%d )",
server, default_port, mtu );
CRASSERT( cr_net.initialized );
if (mtu < CR_MINIMUM_MTU)
{
crError( "You tried to connect to server \"%s\" with an mtu of %d, "
"but the minimum MTU is %d", server, mtu, CR_MINIMUM_MTU );
}
/* Tear the URL apart into relevant portions. */
if ( !crParseURL( server, protocol, hostname, &port, default_port ) ) {
crError( "Malformed URL: \"%s\"", server );
}
crDebug( "Connecting to %s on port %d, with protocol %s",
hostname, port, protocol );
conn = (CRConnection *) crCalloc( sizeof(*conn) );
if (!conn)
return NULL;
/* init the non-zero fields */
conn->type = CR_NO_CONNECTION; /* we don't know yet */
conn->recv_credits = CR_INITIAL_RECV_CREDITS;
conn->hostname = crStrdup( hostname );
conn->port = port;
conn->mtu = mtu;
conn->buffer_size = mtu;
conn->endianness = crDetermineEndianness();
#ifdef CHROMIUM_THREADSAFE
crInitMutex(&conn->messageList.lock);
crInitCondition(&conn->messageList.nonEmpty);
#endif
/* now, just dispatch to the appropriate protocol's initialization functions. */
InitConnection(conn, protocol, mtu);
if (!crNetConnect( conn ))
{
crDebug("crNetConnectToServer() failed, freeing the connection");
crFree( conn );
return NULL;
}
crDebug( "Done connecting to %s (swapping=%d)", server, conn->swap );
#ifndef NDEBUG
crNetDumpConnectionInfo(conn);
#endif
return conn;
}
static void swapsyncConnect(void)
{
char hostname[4096], protocol[4096];
unsigned short port;
crNetInit(NULL, NULL);
if (!crParseURL( render_spu.swap_master_url, protocol, hostname,
&port, 9876))
crError( "Bad URL: %s", render_spu.swap_master_url );
if (render_spu.is_swap_master)
{
int a;
render_spu.swap_conns = (CRConnection **)crAlloc(
render_spu.num_swap_clients*sizeof(CRConnection *));
for (a=0; a<render_spu.num_swap_clients; a++)
{
render_spu.swap_conns[a] = crNetAcceptClient( protocol, hostname, port,
render_spu.swap_mtu, 1);
}
}
else
{
render_spu.swap_conns = (CRConnection **)crAlloc(sizeof(CRConnection *));
render_spu.swap_conns[0] = crNetConnectToServer(render_spu.swap_master_url,
port, render_spu.swap_mtu, 1);
if (!render_spu.swap_conns[0])
crError("Failed connection");
}
}
/**
* Accept a connection from a client.
* \param protocol the protocol to use (such as "tcpip" or "gm")
* \param hostname optional hostname of the expected client (may be NULL)
* \param port number of the port to accept on
* \param mtu maximum transmission unit
* \param broker either 1 or 0 to indicate if connection is brokered through
* the mothership
* \return new CRConnection object, or NULL
*/
CRConnection *
crNetAcceptClient( const char *protocol, const char *hostname,
unsigned short port, unsigned int mtu, int broker )
{
CRConnection *conn;
CRASSERT( cr_net.initialized );
conn = (CRConnection *) crCalloc( sizeof( *conn ) );
if (!conn)
return NULL;
/* init the non-zero fields */
conn->type = CR_NO_CONNECTION; /* we don't know yet */
conn->recv_credits = CR_INITIAL_RECV_CREDITS;
conn->port = port;
conn->mtu = mtu;
conn->buffer_size = mtu;
conn->broker = broker;
conn->endianness = crDetermineEndianness();
conn->teac_id = -1;
conn->teac_rank = -1;
conn->tcscomm_id = -1;
conn->tcscomm_rank = -1;
/* now, just dispatch to the appropriate protocol's initialization functions. */
crDebug("In crNetAcceptClient( protocol=\"%s\" port=%d mtu=%d )",
protocol, (int) port, (int) mtu);
/* special case */
if ( !crStrncmp( protocol, "file", crStrlen( "file" ) ) ||
!crStrncmp( protocol, "swapfile", crStrlen( "swapfile" ) ) )
{
char filename[4096];
char protocol_only[4096];
cr_net.use_file++;
if (!crParseURL(protocol, protocol_only, filename, NULL, 0))
{
crError( "Malformed URL: \"%s\"", protocol );
}
conn->hostname = crStrdup( filename );
/* call the protocol-specific init routines */ // ktd (add)
InitConnection(conn, protocol_only, mtu); // ktd (add)
}
else {
/* call the protocol-specific init routines */
InitConnection(conn, protocol, mtu);
}
crNetAccept( conn, hostname, port );
return conn;
}
static void gather_url( RenderSPU *render_spu, const char *response )
{
char protocol[4096], hostname[4096];
unsigned short port;
if (!crParseURL(response, protocol, hostname, &port, 0))
{
crError( "Malformed URL: \"%s\"", response );
}
render_spu->gather_port = port;
}
static void injectorspuConnect( void )
{
char hostname[4096], protocol[4096] ;
unsigned short port ;
crNetInit( injectorspuReceiveData, NULL ) ;
injector_spu.oob_conn = crAlloc( sizeof(CRConnection*) ) ;
if ( ! crParseURL( injector_spu.oob_url, protocol, hostname, &port, (unsigned short) INJECTORSPU_OOB_PORT ) )
crError( "Malformed URL: \"%s\"", injector_spu.oob_url ) ;
injector_spu.oob_conn = crNetAcceptClient( protocol, NULL, (short) port, 32768 /*mtu*/, 0 /*broker*/ ) ;
/* Initialize the message we send back after every frame */
injector_spu.info_msg.header.type = CR_MESSAGE_OOB ;
injector_spu.info_msg.header.conn_id = injector_spu.oob_conn->id ;
injector_spu.info_msg.frameNum = 0 ;
}
void
CRUT_APIENTRY
crutConnectToClients( CRUTAPI *crut_api )
{
int i, ind;
char response[8096], hostname[4096], protocol[4096];
char **newclients;
char* client;
unsigned short port;
crMothershipGetCRUTClients(crut_api->mothershipConn, response);
newclients = crStrSplit(response, " ");
crut_api->numclients = crStrToInt(newclients[0]);
ind = 1;
crut_api->crutclients = crAlloc(crut_api->numclients*sizeof(CRUTClientPointer));
for (i=0; i<crut_api->numclients; i++) {
client = newclients[ind++];
if ( !crParseURL( client, protocol, hostname, &port, DEFAULT_CRUT_PORT ) )
{
crError( "Malformed URL: \"%s\"", response );
}
crut_api->crutclients[i].mtu = crMothershipGetMTU( crut_api->mothershipConn );
crut_api->crutclients[i].send_conn = crNetAcceptClient( protocol, hostname, port, crut_api->crutclients[i].mtu, 0 );
if (!crut_api->crutclients[i].send_conn)
{
crError("Couldn't connect to the CRUT client");
}
}
}
/**
* Establish a connection with a server.
* \param server the server to connect to, in the form
* "protocol://servername:port" where the port specifier
* is optional and if the protocol is missing it is assumed
* to be "tcpip".
* \param default_port the port to connect to, if port not specified in the
* server URL string.
* \param mtu desired maximum transmission unit size (in bytes)
* \param broker either 1 or 0 to indicate if connection is brokered through
* the mothership
*/
CRConnection * crNetConnectToServer( const char *server, unsigned short default_port, int mtu, int broker
#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
, struct VBOXUHGSMI *pHgsmi
#endif
)
{
char hostname[4096], protocol[4096];
unsigned short port;
CRConnection *conn;
crDebug( "In crNetConnectToServer( \"%s\", port=%d, mtu=%d, broker=%d )",
server, default_port, mtu, broker );
CRASSERT( cr_net.initialized );
if (mtu < CR_MINIMUM_MTU)
{
crError( "You tried to connect to server \"%s\" with an mtu of %d, "
"but the minimum MTU is %d", server, mtu, CR_MINIMUM_MTU );
}
/* Tear the URL apart into relevant portions. */
if ( !crParseURL( server, protocol, hostname, &port, default_port ) ) {
crError( "Malformed URL: \"%s\"", server );
}
/* If the host name is "localhost" replace it with the _real_ name
* of the localhost. If we don't do this, there seems to be
* confusion in the mothership as to whether or not "localhost" and
* "foo.bar.com" are the same machine.
*/
if (crStrcmp(hostname, "localhost") == 0) {
int rv = crGetHostname(hostname, 4096);
CRASSERT(rv == 0);
(void) rv;
}
/* XXX why is this here??? I think it could be moved into the
* crTeacConnection() function with no problem. I.e. change the
* connection's port, teac_rank and tcscomm_rank there. (BrianP)
*/
if ( !crStrcmp( protocol, "quadrics" ) ||
!crStrcmp( protocol, "quadrics-tcscomm" ) ) {
/* For Quadrics protocols, treat "port" as "rank" */
if ( port > CR_QUADRICS_HIGHEST_RANK ) {
crWarning( "Invalid crserver rank, %d, defaulting to %d\n",
port, CR_QUADRICS_LOWEST_RANK );
port = CR_QUADRICS_LOWEST_RANK;
}
}
crDebug( "Connecting to %s on port %d, with protocol %s",
hostname, port, protocol );
#ifdef SDP_SUPPORT
/* This makes me ill, but we need to "fix" the hostname for sdp. MCH */
if (!crStrcmp(protocol, "sdp")) {
char* temp;
temp = strtok(hostname, ".");
crStrcat(temp, crGetSDPHostnameSuffix());
crStrcpy(hostname, temp);
crDebug("SDP rename hostname: %s", hostname);
}
#endif
conn = (CRConnection *) crCalloc( sizeof(*conn) );
if (!conn)
return NULL;
/* init the non-zero fields */
conn->type = CR_NO_CONNECTION; /* we don't know yet */
conn->recv_credits = CR_INITIAL_RECV_CREDITS;
conn->hostname = crStrdup( hostname );
conn->port = port;
conn->mtu = mtu;
conn->buffer_size = mtu;
conn->broker = broker;
conn->endianness = crDetermineEndianness();
/* XXX why are these here??? Move them into the crTeacConnection()
* and crTcscommConnection() functions.
*/
conn->teac_id = -1;
conn->teac_rank = port;
conn->tcscomm_id = -1;
conn->tcscomm_rank = port;
crInitMessageList(&conn->messageList);
/* now, just dispatch to the appropriate protocol's initialization functions. */
InitConnection(conn, protocol, mtu
#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
, pHgsmi
#endif
);
if (!crNetConnect( conn ))
{
crDebug("crNetConnectToServer() failed, freeing the connection");
#ifdef CHROMIUM_THREADSAFE
crFreeMutex( &conn->messageList.lock );
#endif
conn->Disconnect(conn);
crFree( conn );
return NULL;
}
crDebug( "Done connecting to %s (swapping=%d)", server, conn->swap );
return conn;
}
/**
* This is the main routine responsible for replicating our GL state
* for a new VNC viewer. Called when we detect that a new VNC viewer
* has been started.
* \param ipaddress the IP address where the new viewer is running.
*/
void
replicatespuReplicate(int ipaddress)
{
GET_THREAD(thread);
struct in_addr addr;
char *hosturl;
char *ipstring;
int i, r_slot;
int serverPort;
crDebug("Replicate SPU: Enter replicatespuReplicate(ipaddress=0x%x)", ipaddress);
replicatespuFlushAll( (void *)thread );
#ifdef CHROMIUM_THREADSAFE_notyet
crLockMutex(&_ReplicateMutex);
#endif
/*
* Find empty slot.
* Slot 0 is the dummy slot (a non-existant server on devnull connection)
*/
for (r_slot = 1; r_slot < CR_MAX_REPLICANTS; r_slot++) {
if (!IS_CONNECTED(replicate_spu.rserver[r_slot].conn))
break;
}
if (r_slot == CR_MAX_REPLICANTS) {
crWarning("Replicate SPU: no more replicant slots available");
return;
}
/**
** OK, now rserver[r_slot] is free for use.
**/
/*
* At this time, we can only support one VNC viewer per host.
* Check for that here.
*/
for (i = 1; i < CR_MAX_REPLICANTS; i++) {
if (replicate_spu.ipnumbers[i] == ipaddress) {
CRConnection *conn = replicate_spu.rserver[i].conn;
/* If the connection appears to be active, it may actually be a dangling
* connection. Try flushing it now. If flushing fails, the connection
* type will definitely be CR_NO_CONNECTION (which we test below).
*/
if (conn) {
if (conn->type != CR_NO_CONNECTION) {
FlushConnection(i);
}
if (conn->type != CR_NO_CONNECTION) {
crWarning("Replicate SPU: Can't connect to multiple VNC viewers on one host.");
#if 0
/* The above test isn't 100% reliable and can prevent successful
* restart of a viewer on a host. For now, just print warning and
* continue.
*/
return;
#endif
}
}
}
}
replicate_spu.ipnumbers[r_slot] = ipaddress;
serverPort = replicate_spu.chromium_start_port + r_slot;
if (replicate_spu.vncAvailable) {
/* Send a ChromiumStart message to the VNC Server. The VNC Server will
* in turn send a ChromiumStart message to all the attached VNC viewers.
* The VNC Viewer/Chromium module will tell its crserver that there's
* a new OpenGL client.
* We pass the mothership port and crserver port in this message.
*/
char protocol[100], hostname[1000];
const char *mothershipURL;
unsigned short mothershipPort;
mothershipURL = crGetenv("CRMOTHERSHIP");
crDebug("Replicate SPU: CRMOTHERSHIP env var = %s", mothershipURL);
if (mothershipURL)
crParseURL(mothershipURL, protocol, hostname, &mothershipPort,
DEFAULT_MOTHERSHIP_PORT);
else
mothershipPort = DEFAULT_MOTHERSHIP_PORT;
crDebug("Replicate SPU: Sending ChromiumStart msg to VNC server, port=%d",
serverPort);
if (!XVncChromiumStart(replicate_spu.glx_display, ipaddress,
serverPort, mothershipPort)) {
crWarning("Replicate SPU: XVncChromiumStart() call failed");
}
}
addr.s_addr = ipaddress;
ipstring = inet_ntoa(addr);
hosturl = crAlloc(crStrlen(ipstring) + 9);
sprintf(hosturl, "tcpip://%s", ipstring);
crDebug("Replicate SPU attaching to %s on port %d", hosturl, serverPort);
/* connect to the remote VNC server */
replicate_spu.rserver[r_slot].name = crStrdup( replicate_spu.name );
replicate_spu.rserver[r_slot].buffer_size = replicate_spu.buffer_size;
replicate_spu.rserver[r_slot].conn
= crNetConnectToServer( hosturl, serverPort,
replicate_spu.rserver[r_slot].buffer_size, 1);
if (!replicate_spu.rserver[r_slot].conn) {
crWarning("Replicate SPU: failed to connect to %s", hosturl);
return;
}
CRASSERT(replicate_spu.rserver[r_slot].conn);
/*
* Setup the the packer flush function. While replicating state to
* a particular server we definitely don't want to do any broadcast
* flushing!
*/
crPackFlushFunc( thread->packer, replicatespuFlushOnePacker );
crPackSendHugeFunc( thread->packer, replicatespuHugeOnePacker );
NewServerIndex = r_slot;
/*
* Create server-side windows and contexts by walking tables of app windows
* and contexts. Note that windows can be created in random order,
* but contexts must be created in the order they were originally
* created, or shared contexts will break.
*/
crHashtableWalk(replicate_spu.windowTable, replicatespuReplicateWindow, thread);
crListApply(replicate_spu.contextList, replicatespuReplicateContext, thread);
/* MakeCurrent, the current context */
if (thread->currentContext) {
int serverWindow = thread->currentContext->currentWindow->id[r_slot];
int serverContext = thread->currentContext->rserverCtx[r_slot];
if (replicate_spu.swap)
crPackMakeCurrentSWAP(serverWindow, 0, serverContext);
else
crPackMakeCurrent(serverWindow, 0, serverContext);
crStateMakeCurrent( thread->currentContext->State );
}
/*
* Set window sizes
*/
crHashtableWalk(replicate_spu.windowTable, replicatespuResizeWindows, thread);
replicatespuFlushOne(thread, NewServerIndex);
/*
* restore normal, broadcasting packer flush function now.
*/
crPackFlushFunc( thread->packer, replicatespuFlush );
crPackSendHugeFunc( thread->packer, replicatespuHuge );
NewServerIndex = -1;
crDebug("Replicate SPU: leaving replicatespuReplicate");
#ifdef CHROMIUM_THREADSAFE_notyet
crUnlockMutex(&_ReplicateMutex);
#endif
}
