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/*
* cxsocket.h: Socket wrapper classes
*
* See the main source file 'xineliboutput.c' for copyright information and
* how to reach the author.
*
* $Id: cxsocket.h,v 1.6 2006-07-21 22:53:47 phintuka Exp $
*
*/
#ifndef __CXSOCKET_H
#define __CXSOCKET_H
#define CLOSESOCKET(fd) do { if(fd>=0) { close(fd); fd=-1; } } while(0)
//
// Set socket buffers
//
static inline void set_socket_buffers(int s, int txbuf, int rxbuf)
{
int max_buf = txbuf;
/*while(max_buf) {*/
errno = 0;
if(setsockopt(s, SOL_SOCKET, SO_SNDBUF, &max_buf, sizeof(int))) {
LOGERR("setsockopt(SO_SNDBUF,%d) failed", max_buf);
/*max_buf >>= 1;*/
}
/*else {*/
int tmp = 0;
int len = sizeof(int);
errno = 0;
if(getsockopt(s, SOL_SOCKET, SO_SNDBUF, &tmp, (socklen_t*)&len)) {
LOGERR("getsockopt(SO_SNDBUF,%d) failed", max_buf);
/*break;*/
} else if(tmp != max_buf) {
LOGDBG("setsockopt(SO_SNDBUF): got %d bytes", tmp);
/*max_buf >>= 1;*/
/*continue;*/
}
/*}*/
/*}*/
max_buf = rxbuf;
setsockopt(s, SOL_SOCKET, SO_RCVBUF, &max_buf, sizeof(int));
}
//
// Set multicast options
//
static inline int set_multicast_options(int fd_multicast, int ttl)
{
int iReuse = 1, iLoop = 1, iTtl = xc.remote_rtp_ttl;
errno = 0;
if(setsockopt(fd_multicast, SOL_SOCKET, SO_REUSEADDR,
&iReuse, sizeof(int)) < 0) {
LOGERR("setsockopt(SO_REUSEADDR) failed");
return -1;
}
if(setsockopt(fd_multicast, IPPROTO_IP, IP_MULTICAST_TTL,
&iTtl, sizeof(int))) {
LOGERR("setsockopt(IP_MULTICAST_TTL) failed");
return -1;
}
if(setsockopt(fd_multicast, IPPROTO_IP, IP_MULTICAST_LOOP,
&iLoop, sizeof(int))) {
LOGERR("setsockopt(IP_MULTICAST_LOOP) failed");
return -1;
}
return 0;
}
//
// Connect data socket to client (take address from fd_control)
//
static inline int sock_connect(int fd_control, int port, int type)
{
struct sockaddr_in sin;
socklen_t len = sizeof(sin);
int s, one = 1;
if(getpeername(fd_control, (struct sockaddr *)&sin, &len)) {
LOGERR("sock_connect: getpeername failed");
return -1;
}
uint32_t tmp = ntohl(sin.sin_addr.s_addr);
LOGMSG("Client address: %d.%d.%d.%d",
((tmp>>24)&0xff), ((tmp>>16)&0xff),
((tmp>>8)&0xff), ((tmp)&0xff));
#if 0
if ((h = gethostbyname(tmp)) == NULL) {
LOGDBG("sock_connect: unable to resolve host name", tmp);
}
#endif
if ((s = socket(PF_INET, type,
type==SOCK_DGRAM?IPPROTO_UDP:IPPROTO_TCP)) < 0) {
LOGERR("sock_connect: failed to create socket");
return -1;
}
// Set socket buffers: large send buffer, small receive buffer
set_socket_buffers(s, KILOBYTE(256), 2048);
if(setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(int)) < 0)
LOGERR("sock_connect: setsockopt(SO_REUSEADDR) failed");
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
if (connect(s, (struct sockaddr *)&sin, sizeof(sin))==-1 &&
errno != EINPROGRESS) {
LOGERR("connect() failed");
CLOSESOCKET(s);
}
if (fcntl (s, F_SETFL, fcntl (s, F_GETFL) | O_NONBLOCK) == -1) {
LOGERR("can't put socket in non-blocking mode");
CLOSESOCKET(s);
return -1;
}
return s;
}
static inline ssize_t timed_write(int fd, const void *buffer, size_t size,
int timeout_ms)
{
ssize_t written = (ssize_t)size;
const unsigned char *ptr = (const unsigned char *)buffer;
cPoller poller(fd, true);
while (size > 0) {
if(!poller.Poll(timeout_ms)) {
LOGERR("timed_write: poll() failed");
return written-size;
}
errno = 0;
ssize_t p = write(fd, ptr, size);
if (p <= 0) {
if (errno == EINTR || errno == EAGAIN) {
LOGDBG("timed_write: EINTR during write(), retrying");
continue;
}
LOGERR("timed_write: write() error");
return p;
}
ptr += p;
size -= p;
}
return written;
}
//#include "xine_osd_command.h"
static inline int write_osd_command(int fd, osd_command_t *cmd)
{
if(8 != timed_write(fd, "OSDCMD\r\n", 8, 200)) {
LOGDBG("write_osd_command: write (command) failed");
return 0;
}
if((ssize_t)sizeof(osd_command_t) !=
timed_write(fd, cmd, sizeof(osd_command_t), 200)) {
LOGDBG("write_osd_command: write (data) failed");
return 0;
}
if(cmd->palette && cmd->colors &&
(ssize_t)(sizeof(xine_clut_t)*ntohl(cmd->colors)) !=
timed_write(fd, cmd->palette, sizeof(xine_clut_t)*ntohl(cmd->colors), 200)) {
LOGDBG("write_osd_command: write (palette) failed");
return 0;
}
if(cmd->data && cmd->datalen &&
(ssize_t)ntohl(cmd->datalen) != timed_write(fd, cmd->data, ntohl(cmd->datalen), 1000)) {
LOGDBG("write_osd_command: write (bitmap) failed");
return 0;
}
return 1;
}
static inline ssize_t write_str(int fd, const char *str, int timeout_ms=-1)
{
return timed_write(fd, str, strlen(str), timeout_ms);
}
static inline ssize_t write_cmd(int fd, const char *str)
{
return write_str(fd, str, 10);
}
static inline int udp_discovery_broadcast(int fd_discovery, int m_Port)
{
if(!xc.remote_usebcast) {
LOGDBG("UDP broadcasts (discovery) disabled in configuration");
return -1;
}
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_port = htons(DISCOVERY_PORT);
sin.sin_addr.s_addr = INADDR_BROADCAST;
char *test = NULL;
asprintf(&test,
"VDR xineliboutput DISCOVERY 1.0\r\n"
"Server port: %d\r\n"
"Server version: vdr-" VDRVERSION "\r\n"
"\txineliboutput-" XINELIBOUTPUT_VERSION "\r\n"
"\r\n",
m_Port);
int testlen = strlen(test);
if(testlen != sendto(fd_discovery, test, testlen, 0,
(struct sockaddr *)&sin, sizeof(sin))) {
LOGERR("UDP broadcast send failed (discovery)");
return -1;
} else {
LOGDBG("UDP broadcast send succeed (discovery)");
}
return 1;
}
#endif // __CXSOCKET_H
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