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#include "dvbipstream.h"
#ifdef WIN32
#define WIN32_LEAN_AND_MEAN
#include <winsock2.h>
#endif
#include <pthread.h>
#include <sys/types.h>
#include "clist.h"
#include "stream.h"
#include "thread.h"
#define SLEEPTIME (20*1000)
static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
cStream::cStream(int Channum, in_addr_t Addr, int portnum)
: cThread("udp streamer")
{
handle = 0;
channum = Channum;
addr = Addr;
m_portnum = portnum;
}
cStream::~cStream(void)
{
}
bool cStream::StartStream(in_addr_t bindaddr)
{
int rc=0;
peer.sin_family = AF_INET;
peer.sin_port = htons(m_portnum);
peer.sin_addr.s_addr = addr;
udp_socket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (udp_socket < 0)
{
log_socket_error("Stream: socket()");
return false;
}
#if 0
//----------------------
// Bind the socket.
sockaddr_in m_LocalAddr;
m_LocalAddr.sin_family = AF_INET;
m_LocalAddr.sin_port = htons(m_portnum-1);
m_LocalAddr.sin_addr.s_addr = bindaddr;
rc = ::bind( udp_socket, (struct sockaddr*)&m_LocalAddr,
sizeof(m_LocalAddr) );
if ( rc < 0 )
{
log_socket_error("STREAM bind()");
return false;
}
#endif
#if 0
char loop = 1;
rc = setsockopt(udp_socket, IPPROTO_IP, IP_MULTICAST_LOOP,
(char*)&loop, sizeof(loop));
if ( rc < 0 )
{
log_socket_error("STREAM setsockopt(IP_MULTICAST_LOOP)");
return false;
}
#endif
rc = setsockopt(udp_socket, IPPROTO_IP, IP_MULTICAST_IF,
(char *)&bindaddr, sizeof(bindaddr));
if ( rc < 0 )
{
log_socket_error("STREAM setsockopt(IP_MULTICAST_IF)");
return false;
}
pthread_mutex_lock(&lock);
if (handle == 0)
{
handle = mcli_stream_setup(channum);
if (handle)
Start();
}
else
{
printf("cStream: handle != NULL !\n");
}
pthread_mutex_unlock(&lock);
return true;
}
void cStream::Action()
{
unsigned int retries;
size_t len;
char *ptr;
struct pollfd p;
p.fd = udp_socket;
p.events = POLLOUT;
while (Running())
{
for (retries=1;;retries++) {
if (retries&0xff)
len = mcli_stream_access (handle, &ptr);
else
len = mcli_stream_part_access (handle, &ptr);
if (len)
break;
if(!Running())goto out;
usleep (SLEEPTIME);
}
switch (poll(&p,1,100)) {
case -1:
log_socket_error( "STREAM poll()" );
case 0:
usleep (SLEEPTIME);
continue;
default:
if (!(p.revents&POLLOUT)) {
usleep (SLEEPTIME);
continue;
}
if (sendto( udp_socket, ptr, len, 0,
(struct sockaddr *)&peer, sizeof(peer) ) < 0) {
#ifndef WIN32
if ((errno == EINTR)||(errno == EWOULDBLOCK)) {
usleep (SLEEPTIME);
continue;
}
#else
int rc;
rc = WSAGetLastError();
if ((rc == WSAEINTR)||(rc == WSAEWOULDBLOCK)) {
usleep (SLEEPTIME);
continue;
}
#endif
log_socket_error("STREAM: sendto()");
goto out;
}
break;
}
mcli_stream_skip (handle);
}
out:;
}
void cStream::StopStream()
{
Cancel(3);
pthread_mutex_lock(&lock);
if (handle)
{
mcli_stream_stop(handle);
handle = 0;
}
else
{
printf("cStream: handle == NULL !\n");
}
pthread_mutex_unlock(&lock);
#ifdef WIN32
closesocket(udp_socket);
#else
close(udp_socket);
#endif
}
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