int OscGetInput(OscHandler* osc)
{
int msgcnt=0;
if (osc->m_recvq.Available() >= sizeof(int))
{
static WDL_Queue s_q;
osc->m_mutex.Enter();
int sz=osc->m_recvq.Available();
s_q.Add(osc->m_recvq.Get(), sz);
osc->m_recvq.Clear();
osc->m_mutex.Leave();
while (s_q.Available() >= sizeof(int))
{
int len=*(int*)s_q.Get(sizeof(int));
REAPER_MAKEBEINTMEM((char*)&len);
if (len <= 0 || len > MAX_OSC_MSG_LEN || len > s_q.Available()) break;
if (s_q.Available() > 20 && !strcmp((char*)s_q.Get(), "#bundle"))
{
s_q.Advance(16); // past "#bundle" and timestamp
len=*(int*)s_q.Get(sizeof(int));
REAPER_MAKEBEINTMEM((char*)&len);
if (len <= 0 || len > MAX_OSC_MSG_LEN || len > s_q.Available()) break;
}
OscMessageRead rmsg((char*)s_q.Get(len), len);
#if OSC_DEBUG_INPUT
char dump[MAX_OSC_MSG_LEN*2];
rmsg.DebugDump("recv: ", dump, sizeof(dump));
#ifdef _WIN32
strcat(dump, "\n");
OutputDebugString(dump);
#else
fprintf(stderr, "%s\n", dump);
#endif
#endif
if (osc->m_recv_enable&2)
{
const char* msg=rmsg.GetMessage();
const float* f=rmsg.PopFloatArg(true);
CSurf_OnOscControlMessage(msg, f);
}
osc->m_handler(osc->m_obj, &rmsg);
++msgcnt;
}
s_q.Clear();
}
return msgcnt;
}
static unsigned WINAPI OscThreadProc(LPVOID p)
{
JNL::open_socketlib();
int sockcnt=0;
WDL_Queue sendq;
char hdr[16] = { 0 };
strcpy(hdr, "#bundle");
hdr[12]=1; // timetag=immediate
int i;
for (i=0; i < s_osc_handlers.GetSize(); ++i)
{
OscHandler* osc=s_osc_handlers.Get(i);
osc->m_recvsock=osc->m_sendsock-1;
if (osc->m_recv_enable)
{
osc->m_recvsock=socket(AF_INET, SOCK_DGRAM, 0);
if (osc->m_recvsock >= 0)
{
int on=1;
setsockopt(osc->m_recvsock, SOL_SOCKET, SO_BROADCAST, (char*)&on, sizeof(on));
if (!bind(osc->m_recvsock, (struct sockaddr*)&osc->m_recvaddr, sizeof(struct sockaddr)))
{
SET_SOCK_BLOCK(osc->m_recvsock, false);
++sockcnt;
}
else
{
closesocket(osc->m_recvsock);
osc->m_recvsock=-1;
}
}
}
if (osc->m_send_enable)
{
osc->m_sendsock=socket(AF_INET, SOCK_DGRAM, 0);
if (osc->m_sendsock >= 0)
{
int on=1;
setsockopt(osc->m_sendsock, SOL_SOCKET, SO_BROADCAST, (char*)&on, sizeof(on));
++sockcnt;
}
}
}
if (sockcnt)
{
while (!s_threadquit)
{
char buf[MAX_OSC_MSG_LEN];
bool hadmsg=false;
for (i=0; i < s_osc_handlers.GetSize(); ++i)
{
OscHandler* osc=s_osc_handlers.Get(i);
if (osc->m_recvsock >= 0)
{
buf[0]=0;
int len=recvfrom(osc->m_recvsock, buf, sizeof(buf), 0, 0, 0);
if (len > 0)
{
// unpacking bundles becomes trivial
// if we store the packet length as big-endian
int tlen=len;
REAPER_MAKEBEINTMEM((char*)&tlen);
osc->m_mutex.Enter();
osc->m_recvq.Add(&tlen, sizeof(int));
osc->m_recvq.Add(buf, len);
osc->m_mutex.Leave();
if (osc->m_recv_enable&4) // just listening
{
int j;
for (j=i+1; j < s_osc_handlers.GetSize(); ++j)
{
OscHandler* osc2=s_osc_handlers.Get(j);
if (osc2->m_recv_enable &&
!memcmp(&osc2->m_recvaddr, &osc->m_recvaddr, sizeof(struct sockaddr_in)))
{
osc2->m_mutex.Enter();
osc2->m_recvq.Add(&tlen, sizeof(int));
osc2->m_recvq.Add(buf, len);
osc2->m_mutex.Leave();
}
}
}
hadmsg=true;
}
}
if (osc->m_sendsock >= 0 && osc->m_sendq.Available())
{
sendq.Add(hdr, 16);
osc->m_mutex.Enter();
sendq.Add(osc->m_sendq.Get(), osc->m_sendq.Available());
osc->m_sendq.Clear();
osc->m_mutex.Leave();
char* packetstart=(char*)sendq.Get();
int packetlen=16;
bool hasbundle=false;
sendq.Advance(16);
while (sendq.Available() >= sizeof(int))
{
int len=*(int*)sendq.Get(); // not advancing
REAPER_MAKEBEINTMEM((char*)&len);
if (len < 1 || len > MAX_OSC_MSG_LEN || len > sendq.Available()) break;
if (packetlen > 16 && packetlen+sizeof(int)+len > osc->m_maxpacketsz)
{
// packet is full
if (!hasbundle)
{
packetstart += 20;
packetlen -= 20;
}
if (s_threadquit) break;
sendto(osc->m_sendsock, packetstart, packetlen, 0, (struct sockaddr*)&osc->m_sendaddr, sizeof(struct sockaddr));
if (osc->m_sendsleep) Sleep(osc->m_sendsleep);
packetstart=(char*)sendq.Get()-16; // safe since we padded the queue start
memcpy(packetstart, hdr, 16);
packetlen=16;
hasbundle=false;
}
if (packetlen > 16) hasbundle=true;
sendq.Advance(sizeof(int)+len);
packetlen += sizeof(int)+len;
}
if (packetlen > 16)
{
if (!hasbundle)
{
packetstart += 20;
packetlen -= 20;
}
if (s_threadquit) break;
sendto(osc->m_sendsock, packetstart, packetlen, 0, (struct sockaddr*)&osc->m_sendaddr, sizeof(struct sockaddr));
if (osc->m_sendsleep) Sleep(osc->m_sendsleep);
}
sendq.Clear();
hadmsg=true;
}
}
if (!hadmsg) Sleep(1);
}
}
// s_threadquit:
for (i=0; i < s_osc_handlers.GetSize(); ++i)
{
OscHandler* osc=s_osc_handlers.Get(i);
if (osc->m_recvsock >= 0)
{
shutdown(osc->m_recvsock, SHUT_RDWR);
closesocket(osc->m_recvsock);
osc->m_recvsock=-1;
}
if (osc->m_sendsock >= 0)
{
shutdown(osc->m_sendsock, SHUT_RDWR);
closesocket(osc->m_sendsock);
osc->m_sendsock=-1;
}
}
JNL::close_socketlib();
return 0;
}