frodovdr/vdr-plugin-iptv
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Added private functions for Checking + creating and closing sockets.

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This commit is contained in:
Antti Seppälä 2007-09-12 18:33:56 +00:00
parent 59d56fe5c0
commit 1621555dd8
2 changed files with 71 additions and 42 deletions
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108
streamer.c
View File

@ -3,7 +3,7 @@
*
* See the README file for copyright information and how to reach the author.
*
* $Id: streamer.c,v 1.3 2007/09/12 18:30:50 rahrenbe Exp $
* $Id: streamer.c,v 1.4 2007/09/12 18:33:56 ajhseppa Exp $
*/
#include <sys/types.h>
@ -29,23 +29,12 @@ cIptvStreamer::cIptvStreamer(cRingBufferLinear* BufferPtr, cMutex* Mutex)
socketActive(false),
mcastActive(false)
{
int yes = 1;
debug("cIptvStreamer::cIptvStreamer()\n");
memset(&stream, '\0', strlen(stream));
// Create socket
socketDesc = socket(PF_INET, SOCK_DGRAM, 0);
if (socketDesc < 0) {
char tmp[64];
error("ERROR: socket(): %s", strerror_r(errno, tmp, sizeof(tmp)));
}
// Allow multiple sockets to use the same PORT number
if (setsockopt(socketDesc, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) {
char tmp[64];
error("ERROR: setsockopt(): %s", strerror_r(errno, tmp, sizeof(tmp)));
}
// Create the socket
CheckAndCreateSocket(dataPort);
pReceiveBuffer = MALLOC(unsigned char, bufferSize);
if (!pReceiveBuffer)
@ -61,8 +50,8 @@ cIptvStreamer::~cIptvStreamer()
if (pReceiveBuffer)
free(pReceiveBuffer);
close(socketDesc);
socketActive = false;
// Close the socket
CloseSocket();
}
void cIptvStreamer::Action()
@ -82,6 +71,62 @@ void cIptvStreamer::Action()
debug("cIptvStreamer::Action(): Exiting\n");
}
bool cIptvStreamer::CheckAndCreateSocket(const int port)
{
// If socket is there already and it is bound to a different port, it must
// be closed first
if (socketActive && port != dataPort) {
debug("Full tear-down of active socket\n");
CloseSocket();
}
// Bind to the socket if it is not active already
if (!socketActive) {
// Create socket
socketDesc = socket(PF_INET, SOCK_DGRAM, 0);
if (socketDesc < 0) {
char tmp[64];
error("ERROR: socket(): %s", strerror_r(errno, tmp, sizeof(tmp)));
}
int yes = 1;
// Allow multiple sockets to use the same PORT number
if (setsockopt(socketDesc, SOL_SOCKET, SO_REUSEADDR, &yes,
sizeof(yes)) < 0) {
char tmp[64];
error("ERROR: setsockopt(): %s", strerror_r(errno, tmp, sizeof(tmp)));
}
memset(&sa, '\0', sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_port = htons(port);
sa.sin_addr.s_addr = htonl(INADDR_ANY);
int err = bind(socketDesc, (struct sockaddr *)&sa, sizeof(sa));
if (err < 0) {
char tmp[64];
error("ERROR: bind(): %s", strerror_r(errno, tmp, sizeof(tmp)));
return false;
}
dataPort = port;
socketActive = true;
}
return true;
}
void cIptvStreamer::CloseSocket()
{
if (socketActive) {
close(socketDesc);
socketActive = false;
}
}
bool cIptvStreamer::Activate()
{
struct ip_mreq mreq;
@ -102,6 +147,9 @@ bool cIptvStreamer::Activate()
if (!Running())
Start();
// Ensure that socket is valid
CheckAndCreateSocket(dataPort);
// Join a new multicast group
mreq.imr_multiaddr.s_addr = inet_addr(stream);
mreq.imr_interface.s_addr = htonl(INADDR_ANY);
@ -149,35 +197,13 @@ bool cIptvStreamer::SetStream(const char* address, const int port, const int pro
{
debug("cIptvStreamer::SetChannel(): channel = %s:%d\n", address, port);
if (port != dataPort) {
error("ERROR: Support for full re-initialization is not implemented!\n");
return false;
}
// Bind to the socket if it is not active already
if (!socketActive) {
debug("cIptvStreamer::SetChannel(): Binding socket to %s:%d\n", address, port);
dataPort = port;
memset(&sa, '\0', sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_port = htons(dataPort);
sa.sin_addr.s_addr = htonl(INADDR_ANY);
int err = bind(socketDesc, (struct sockaddr *)&sa, sizeof(sa));
if (err < 0) {
char tmp[64];
error("ERROR: bind(): %s", strerror_r(errno, tmp, sizeof(tmp)));
return false;
}
socketActive = true;
}
// De-activate the reception if it is running currently. Otherwise the
// reception stream is overwritten and cannot be un-set after this
Deactivate();
// Ensure that the socket is valid
CheckAndCreateSocket(port);
// Check if the address fits into the buffer
if (strlen(address) > sizeof(stream)) {
error("ERROR: Address too big\n");

5
streamer.h
View File

@ -3,7 +3,7 @@
*
* See the README file for copyright information and how to reach the author.
*
* $Id: streamer.h,v 1.1 2007/09/12 17:28:59 rahrenbe Exp $
* $Id: streamer.h,v 1.2 2007/09/12 18:33:56 ajhseppa Exp $
*/
#ifndef __IPTV_STREAMER_H
@ -28,6 +28,9 @@ private:
bool socketActive;
bool mcastActive;
bool CheckAndCreateSocket(const int port);
void CloseSocket();
public:
enum {
PROTOCOL_UDP,