int ThreadedAudioDevice::waitForDevice(unsigned int wTime) {
int ret;
unsigned waitSecs = int(wTime / 1000.0);
unsigned waitUsecs = 1000 * (wTime - unsigned(waitSecs * 1000));
// Wait wTime msecs for select to return, then bail.
if (!stopping()) {
int nfds = _device + 1;
struct timeval tv;
tv.tv_sec = waitSecs;
tv.tv_usec = waitUsecs;
// If wTime == 0, wait forever by passing NULL as the final arg.
// if (!isPlaying())
// printf("select(%d, 0x%x, 0x%x, NULL, 0x%x)...\n",
// nfds, &_rfdset, &_wfdset, wTime == 0 ? NULL : &tv);
int selret = ::select(nfds, &_rfdset, &_wfdset,
NULL, wTime == 0 ? NULL : &tv);
if (selret <= 0) {
if (errno != EINTR)
fprintf(stderr,
"ThreadedAudioDevice::waitForDevice: select %s\n",
(selret == 0) ? "timed out" : "returned error");
ret = -1;
}
else {
setFDSet();
ret = 0;
}
}
else {
PRINT1("ThreadedAudioDevice::waitForDevice: stopping == true\n");
ret = 1;
}
return ret;
}
void ThreadedAudioDevice::setDevice(int dev)
{
_device = dev;
if (_device > 0) {
FD_ZERO(&_rfdset);
FD_ZERO(&_wfdset);
setFDSet();
}
}
static UA_StatusCode
ServerNetworkLayerTCP_start(UA_ServerNetworkLayer *nl) {
ServerNetworkLayerTCP *layer = nl->handle;
#ifdef _WIN32
if((layer->serversockfd = socket(PF_INET, SOCK_STREAM,0)) == (UA_Int32)INVALID_SOCKET) {
UA_LOG_WARNING(layer->logger, UA_LOGCATEGORY_NETWORK, "Error opening socket, code: %d",
WSAGetLastError());
return UA_STATUSCODE_BADINTERNALERROR;
}
#else
if((layer->serversockfd = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
UA_LOG_WARNING(layer->logger, UA_LOGCATEGORY_NETWORK, "Error opening socket");
return UA_STATUSCODE_BADINTERNALERROR;
}
#endif
const struct sockaddr_in serv_addr =
{.sin_family = AF_INET, .sin_addr.s_addr = INADDR_ANY,
.sin_port = htons(layer->port), .sin_zero = {0}};
int optval = 1;
if(setsockopt(layer->serversockfd, SOL_SOCKET,
SO_REUSEADDR, (const char *)&optval, sizeof(optval)) == -1) {
UA_LOG_WARNING(layer->logger, UA_LOGCATEGORY_NETWORK,
"Error during setting of socket options");
CLOSESOCKET(layer->serversockfd);
return UA_STATUSCODE_BADINTERNALERROR;
}
if(bind(layer->serversockfd, (const struct sockaddr *)&serv_addr,
sizeof(serv_addr)) < 0) {
UA_LOG_WARNING(layer->logger, UA_LOGCATEGORY_NETWORK, "Error during socket binding");
CLOSESOCKET(layer->serversockfd);
return UA_STATUSCODE_BADINTERNALERROR;
}
socket_set_nonblocking(layer->serversockfd);
listen(layer->serversockfd, MAXBACKLOG);
UA_LOG_INFO(layer->logger, UA_LOGCATEGORY_NETWORK, "TCP network layer listening on %.*s",
nl->discoveryUrl.length, nl->discoveryUrl.data);
return UA_STATUSCODE_GOOD;
}
static size_t
ServerNetworkLayerTCP_getJobs(UA_ServerNetworkLayer *nl, UA_Job **jobs, UA_UInt16 timeout) {
ServerNetworkLayerTCP *layer = nl->handle;
fd_set fdset;
UA_Int32 highestfd = setFDSet(layer, &fdset);
struct timeval tmptv = {0, timeout};
UA_Int32 resultsize;
resultsize = select(highestfd+1, &fdset, NULL, NULL, &tmptv);
if(resultsize < 0) {
*jobs = NULL;
return 0;
}
/* accept new connections (can only be a single one) */
if(FD_ISSET(layer->serversockfd, &fdset)) {
resultsize--;
struct sockaddr_in cli_addr;
socklen_t cli_len = sizeof(cli_addr);
int newsockfd = accept(layer->serversockfd, (struct sockaddr *) &cli_addr, &cli_len);
int i = 1;
setsockopt(newsockfd, IPPROTO_TCP, TCP_NODELAY, (void *)&i, sizeof(i));
if(newsockfd >= 0) {
socket_set_nonblocking(newsockfd);
ServerNetworkLayerTCP_add(layer, newsockfd);
}
}
/* alloc enough space for a cleanup-connection and free-connection job per resulted socket */
if(resultsize == 0)
return 0;
UA_Job *js = malloc(sizeof(UA_Job) * resultsize * 2);
if(!js)
return 0;
/* read from established sockets */
size_t j = 0;
UA_ByteString buf = UA_BYTESTRING_NULL;
for(size_t i = 0; i < layer->mappingsSize && j < (size_t)resultsize; i++) {
if(!(FD_ISSET(layer->mappings[i].sockfd, &fdset)))
continue;
UA_StatusCode retval = socket_recv(layer->mappings[i].connection, &buf, 0);
if(retval == UA_STATUSCODE_GOOD) {
UA_Boolean realloced = UA_FALSE;
retval = UA_Connection_completeMessages(layer->mappings[i].connection, &buf, &realloced);
if(retval != UA_STATUSCODE_GOOD || buf.length == 0)
continue;
js[j].job.binaryMessage.connection = layer->mappings[i].connection;
js[j].job.binaryMessage.message = buf;
if(!realloced)
js[j].type = UA_JOBTYPE_BINARYMESSAGE_NETWORKLAYER;
else
js[j].type = UA_JOBTYPE_BINARYMESSAGE_ALLOCATED;
j++;
} else if (retval == UA_STATUSCODE_BADCONNECTIONCLOSED) {
UA_Connection *c = layer->mappings[i].connection;
/* the socket was closed from remote */
js[j].type = UA_JOBTYPE_DETACHCONNECTION;
js[j].job.closeConnection = layer->mappings[i].connection;
layer->mappings[i] = layer->mappings[layer->mappingsSize-1];
layer->mappingsSize--;
j++;
js[j].type = UA_JOBTYPE_METHODCALL_DELAYED;
js[j].job.methodCall.method = FreeConnectionCallback;
js[j].job.methodCall.data = c;
j++;
}
}
if(j == 0) {
free(js);
js = NULL;
}
*jobs = js;
return j;
}
static UA_StatusCode ServerNetworkLayerUDP_start(ServerNetworkLayerUDP *layer, UA_Logger logger) {
layer->layer.logger = logger;
layer->serversockfd = socket(PF_INET, SOCK_DGRAM, 0);
if(layer->serversockfd < 0) {
UA_LOG_WARNING(layer->layer.logger, UA_LOGCATEGORY_COMMUNICATION, "Error opening socket");
return UA_STATUSCODE_BADINTERNALERROR;
}
const struct sockaddr_in serv_addr =
{.sin_family = AF_INET, .sin_addr.s_addr = INADDR_ANY,
.sin_port = htons(layer->port), .sin_zero = {0}};
int optval = 1;
if(setsockopt(layer->serversockfd, SOL_SOCKET,
SO_REUSEADDR, (const char *)&optval, sizeof(optval)) == -1) {
UA_LOG_WARNING(layer->layer.logger, UA_LOGCATEGORY_COMMUNICATION, "Could not setsockopt");
CLOSESOCKET(layer->serversockfd);
return UA_STATUSCODE_BADINTERNALERROR;
}
if(bind(layer->serversockfd, (const struct sockaddr *)&serv_addr,
sizeof(serv_addr)) < 0) {
UA_LOG_WARNING(layer->layer.logger, UA_LOGCATEGORY_COMMUNICATION, "Could not bind the socket");
CLOSESOCKET(layer->serversockfd);
return UA_STATUSCODE_BADINTERNALERROR;
}
socket_set_nonblocking(layer->serversockfd);
UA_LOG_WARNING(layer->layer.logger, UA_LOGCATEGORY_COMMUNICATION, "Listening for UDP connections on %s:%d",
inet_ntoa(serv_addr.sin_addr), ntohs(serv_addr.sin_port));
return UA_STATUSCODE_GOOD;
}
static size_t ServerNetworkLayerUDP_getJobs(ServerNetworkLayerUDP *layer, UA_Job **jobs, UA_UInt16 timeout) {
UA_Job *items = NULL;
setFDSet(layer);
struct timeval tmptv = {0, timeout};
UA_Int32 resultsize = select(layer->serversockfd+1, &layer->fdset, NULL, NULL, &tmptv);
if(resultsize <= 0 || !FD_ISSET(layer->serversockfd, &layer->fdset)) {
*jobs = items;
return 0;
}
items = malloc(sizeof(UA_Job)*resultsize);
// read from established sockets
UA_Int32 j = 0;
UA_ByteString buf = {-1, NULL};
if(!buf.data) {
buf.data = malloc(sizeof(UA_Byte) * layer->conf.recvBufferSize);
if(!buf.data)
UA_LOG_WARNING(layer->layer.logger, UA_LOGCATEGORY_COMMUNICATION, "malloc failed");
}
struct sockaddr sender;
socklen_t sendsize = sizeof(sender);
bzero(&sender, sizeof(sender));
buf.length = recvfrom(layer->serversockfd, buf.data, layer->conf.recvBufferSize, 0, &sender, &sendsize);
if (buf.length <= 0) {
} else {
UDPConnection *c = malloc(sizeof(UDPConnection));
if(!c)
return UA_STATUSCODE_BADINTERNALERROR;
UA_Connection_init(&c->connection);
c->from = sender;
c->fromlen = sendsize;
// c->sockfd = newsockfd;
c->connection.getSendBuffer = GetMallocedBuffer;
c->connection.releaseSendBuffer = ReleaseMallocedBuffer;
c->connection.releaseRecvBuffer = ReleaseMallocedBuffer;
c->connection.handle = layer;
c->connection.send = sendUDP;
c->connection.close = closeConnectionUDP;
c->connection.localConf = layer->conf;
c->connection.state = UA_CONNECTION_OPENING;
items[j].type = UA_JOBTYPE_BINARYMESSAGE_NETWORKLAYER;
items[j].job.binaryMessage.message = buf;
items[j].job.binaryMessage.connection = (UA_Connection*)c;
buf.data = NULL;
j++;
}
if(buf.data)
free(buf.data);
if(j == 0) {
free(items);
*jobs = NULL;
} else
*jobs = items;
return j;
}