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/*
* tsworker.c: ts streaming worker thread
*
* See the README file for copyright information and how to reach the author.
*
*/
#include <sys/time.h>
#include <vdr/tools.h>
#include "tools/socket.h"
#include "tools/select.h"
#include "tsworker.h"
#include "config.h"
#define MINSENDBYTES KILOBYTE(500)
//////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////
cTSWorker *cTSWorker::m_Instance = NULL;
cTSWorker::cTSWorker(void)
: cThread("[ffnetdev] TS streamer")
{
m_Active = false;
m_StreamClient = NULL;
origPrimaryDevice = -1;
}
cTSWorker::~cTSWorker() {
if (m_Active) Stop();
}
void cTSWorker::Init(cStreamDevice *StreamDevice, int tsport, cPluginFFNetDev *pPlugin ) {
if (m_Instance == NULL) {
m_Instance = new cTSWorker;
m_Instance->m_StreamDevice = StreamDevice;
m_Instance->TSPort = tsport;
m_Instance->Start();
m_Instance->m_pPlugin = pPlugin;
}
}
void cTSWorker::Exit(void) {
if (m_Instance != NULL) {
m_Instance->Stop();
DELETENULL(m_Instance);
}
}
void cTSWorker::Stop(void) {
m_Active = false;
Cancel(3);
}
void cTSWorker::CloseStreamClient(void) {
m_Instance->close_Streamclient_request = true;
#ifdef DEBUG
fprintf(stderr, "[ffnetdev] Streamer: Closing of TS-streaming client socket requested.\r\n");
#endif
}
void cTSWorker::Action(void) {
cTBSelect select;
//cTBSocket m_StreamListen(SOCK_DGRAM);
cTBSocket m_StreamListen;
struct timeval oldtime;
long bytessend = 0;
long oldbytessend = 0;
memset(&oldtime, 0, sizeof(oldtime));
const char* m_ListenIp = "0.0.0.0";
uint m_StreamListenPort = TSPort;
m_StreamClient = new cTBSocket;
m_Active = true;
have_Streamclient = false;
if (!m_StreamListen.Listen(m_ListenIp, m_StreamListenPort, 1)) { // ToDo JN place to allow more connections/clients!
esyslog("[ffnetdev] Streamer: Couldn't listen %s:%d: %s", m_ListenIp, m_StreamListenPort, strerror(errno));
m_Active = false;
}
else
isyslog("[ffnetdev] Streamer: Listening on port %d", m_StreamListenPort);
while (m_Active) {
select.Clear();
if (have_Streamclient==false)
select.Add(m_StreamListen, false);
else {
select.Add(*m_StreamClient, true); //select for writing fd
select.Add(*m_StreamClient, false); //select for reading fd
}
int numfd;
/* React on status change of any of the above file descriptor */
if ((numfd=select.Select(1000)) < 0) {
if (!m_Active) // Exit was requested while polling
continue;
esyslog("[ffnetdev] Streamer: Fatal error, ffnetdev exiting: %s", strerror(errno));
m_Active = false;
continue;
}
//DEBUG
/*
fprintf(stderr, "[ffnetdev] Streamer: Num_FD TS: %d", numfd);
if (select.CanRead(m_StreamListen) || select.CanWrite(m_StreamListen))
fprintf (stderr, "m_StreamListen can act.\n");
if (select.CanRead(*m_StreamClient) || select.CanWrite(*m_StreamClient))
fprintf (stderr, "m_StreamClient can act.\n");
*/
/* Accept connecting streaming clients */
if ( (have_Streamclient==false)&&select.CanRead(m_StreamListen) ) {
if (m_StreamClient->Accept(m_StreamListen)) {
isyslog("[ffnetdev] Streamer: Accepted client %s:%d",
m_StreamClient->RemoteIp().c_str(), m_StreamClient->RemotePort());
have_Streamclient = true;
m_pPlugin->SetPrimaryDevice();
}
else {
esyslog("[ffnetdev] Streamer: Couldn't accept : %s", strerror(errno));
have_Streamclient = false;
m_Active = false;
continue;
}
}
/* Check for closed streaming client connection */
if (have_Streamclient==true) {
if (close_Streamclient_request==true) {
close_Streamclient_request = false;
have_Streamclient = false;
m_pPlugin->RestorePrimaryDevice();
if ( m_StreamClient->Close() ) {
#ifdef DEBUG
fprintf(stderr, "[ffnetdev] Streamer: Client socket closed successfully.\n");
#endif
isyslog("[ffnetdev] Streamer: Connection closed: client %s:%d",
m_StreamClient->RemoteIp().c_str(), m_StreamClient->RemotePort());
}
else
{
#ifdef DEBUG
fprintf(stderr, "[ffnetdev] Streamer: Error closing client socket.\n");
#endif
esyslog("[ffnetdev] Streamer: Error closing connection.");
m_Active=false;
continue;
}
}
if ( select.CanWrite(*m_StreamClient) ) {
int count=0;
m_StreamDevice->LockOutput();
uchar *buffer = m_StreamDevice->Get(count);
if (buffer!=NULL) {
int available = count;
int done = 0;
int written = 0;
while ((available > 0) && (have_Streamclient == true) &&
(!close_Streamclient_request))
{
if (((written=m_StreamClient->Write(&buffer[done], available)) < 0) &&
(errno != EAGAIN))
{
CloseStreamClient();
}
if (written > 0)
{
available -= written;
done += written;
}
else
{
cCondWait::SleepMs(5);
}
}
m_StreamDevice->Del(count);
struct timeval curtime;
gettimeofday(&curtime, 0);
if (oldtime.tv_sec == 0)
{
oldtime = curtime;
bytessend = 0;
oldbytessend = 0;
}
bytessend += count;
if (curtime.tv_sec > oldtime.tv_sec + 10)
{
double secs = (curtime.tv_sec * 1000 + (curtime.tv_usec / 1000)) / 1000
- (oldtime.tv_sec * 1000 + (oldtime.tv_usec / 1000)) / 1000;
#ifdef DEBUG
fprintf(stderr, "[ffnetdev] Streamer: current TransferRate %d Byte/Sec, %d Bytes send\n",
(int)((bytessend - oldbytessend) / secs), bytessend - oldbytessend);
#endif
dsyslog("[ffnetdev] Streamer: current TransferRate %d Byte/Sec, %d Bytes send\n",
(int)((bytessend - oldbytessend) / secs), bytessend - oldbytessend);
oldbytessend = bytessend;
oldtime = curtime;
}
}
m_StreamDevice->UnlockOutput();
}
if ( select.CanRead(*m_StreamClient) )
if ( m_StreamClient->Read(NULL, 1)==0 )
CloseStreamClient();
}
else {
/* simply discard all data in ringbuffer */
int count=0;
if ( (m_StreamDevice->Get(count)) !=NULL ) {
m_StreamDevice->Del(count);
#ifdef DEBUG
fprintf (stderr, "[ffnetdev] Streamer: Bytes not sent, but deleted from ringbuffer: %d\n",count);
#endif
dsyslog("[ffnetdev] Streamer: Bytes not sent, but deleted from ringbuffer: %d\n",count);
}
}
cCondWait::SleepMs(3);
} // while(m_Active)
}
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