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vdr/vdr.c

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/*
* vdr.c: Video Disk Recorder main program
*
* Copyright (C) 2000 Klaus Schmidinger
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*
* The author can be reached at kls@cadsoft.de
*
* The project's page is at http://www.cadsoft.de/people/kls/vdr
*
* $Id: vdr.c 1.55 2001/03/31 10:18:25 kls Exp $
*/
#include <getopt.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include "config.h"
#include "dvbapi.h"
#include "i18n.h"
#include "interface.h"
#include "menu.h"
#include "recording.h"
#include "tools.h"
#include "videodir.h"
#ifdef REMOTE_KBD
#define KEYS_CONF "keys-pc.conf"
#else
#define KEYS_CONF "keys.conf"
#endif
#define ACTIVITYTIMEOUT 60 // seconds before starting housekeeping
static int Interrupted = 0;
static void SignalHandler(int signum)
{
if (signum != SIGPIPE)
Interrupted = signum;
signal(signum, SignalHandler);
}
static void Watchdog(int signum)
{
// Something terrible must have happened that prevented the 'alarm()' from
// being called in time, so let's get out of here:
esyslog(LOG_ERR, "PANIC: watchdog timer expired - exiting!");
exit(1);
}
int main(int argc, char *argv[])
{
// Command line options:
#define DEFAULTSVDRPPORT 2001
#define DEFAULTWATCHDOG 0 // seconds
int SVDRPport = DEFAULTSVDRPPORT;
const char *ConfigDirectory = NULL;
bool DaemonMode = false;
int WatchdogTimeout = DEFAULTWATCHDOG;
char *Terminal = NULL;
static struct option long_options[] = {
{ "config", required_argument, NULL, 'c' },
{ "daemon", no_argument, NULL, 'd' },
{ "device", required_argument, NULL, 'D' },
{ "help", no_argument, NULL, 'h' },
{ "log", required_argument, NULL, 'l' },
{ "port", required_argument, NULL, 'p' },
{ "video", required_argument, NULL, 'v' },
{ "watchdog", required_argument, NULL, 'w' },
{ "terminal", required_argument, NULL, 't' },
{ 0 }
};
int c;
int option_index = 0;
while ((c = getopt_long(argc, argv, "c:dD:hl:p:v:w:t:", long_options, &option_index)) != -1) {
switch (c) {
case 'c': ConfigDirectory = optarg;
break;
case 'd': DaemonMode = true; break;
case 'D': if (isnumber(optarg)) {
int n = atoi(optarg);
if (0 <= n && n < MAXDVBAPI) {
cDvbApi::SetUseDvbApi(n);
break;
}
}
fprintf(stderr, "vdr: invalid DVB device number: %s\n", optarg);
abort();
break;
case 'h': printf("Usage: vdr [OPTION]\n\n" // for easier orientation, this is column 80|
" -c DIR, --config=DIR read config files from DIR (default is to read them\n"
" from the video directory)\n"
" -h, --help display this help and exit\n"
" -d, --daemon run in daemon mode\n"
" -D NUM, --device=NUM use only the given DVB device (NUM = 0, 1, 2...)\n"
" there may be several -D options (default: all DVB\n"
" devices will be used)\n"
" -l LEVEL, --log=LEVEL set log level (default: 3)\n"
" 0 = no logging, 1 = errors only,\n"
" 2 = errors and info, 3 = errors, info and debug\n"
" -p PORT, --port=PORT use PORT for SVDRP (default: %d)\n"
" 0 turns off SVDRP\n"
" -v DIR, --video=DIR use DIR as video directory (default: %s)\n"
" -w SEC, --watchdog=SEC activate the watchdog timer with a timeout of SEC\n"
" seconds (default: %d); '0' disables the watchdog\n"
" -t TTY, --terminal=TTY controlling tty\n"
"\n"
"Report bugs to <vdr-bugs@cadsoft.de>\n",
DEFAULTSVDRPPORT,
VideoDirectory,
DEFAULTWATCHDOG
);
return 0;
break;
case 'l': if (isnumber(optarg)) {
int l = atoi(optarg);
if (0 <= l && l <= 3) {
SysLogLevel = l;
break;
}
}
fprintf(stderr, "vdr: invalid log level: %s\n", optarg);
abort();
break;
case 'p': if (isnumber(optarg))
SVDRPport = atoi(optarg);
else {
fprintf(stderr, "vdr: invalid port number: %s\n", optarg);
abort();
}
break;
case 't': Terminal = optarg;
break;
case 'v': VideoDirectory = optarg;
while (optarg && *optarg && optarg[strlen(optarg) - 1] == '/')
optarg[strlen(optarg) - 1] = 0;
break;
case 'w': if (isnumber(optarg)) {
int t = atoi(optarg);
if (t >= 0) {
WatchdogTimeout = t;
break;
}
}
fprintf(stderr, "vdr: invalid watchdog timeout: %s\n", optarg);
abort();
break;
default: abort();
}
}
// Log file:
if (SysLogLevel > 0)
openlog("vdr", LOG_PID | LOG_CONS, LOG_USER);
// Check the video directory:
if (!DirectoryOk(VideoDirectory, true)) {
fprintf(stderr, "vdr: can't access video directory %s\n", VideoDirectory);
abort();
}
// Daemon mode:
if (DaemonMode) {
#if !defined(DEBUG_OSD) && !defined(REMOTE_KBD)
pid_t pid = fork();
if (pid < 0) {
fprintf(stderr, "%m\n");
esyslog(LOG_ERR, "ERROR: %m");
abort();
}
if (pid != 0)
return 0; // initial program immediately returns
fclose(stdin);
fclose(stdout);
fclose(stderr);
#else
fprintf(stderr, "vdr: can't run in daemon mode with DEBUG_OSD or REMOTE_KBD on!\n");
abort();
#endif
}
else if (Terminal) {
// Claim new controlling terminal
stdin = freopen(Terminal, "r", stdin);
stdout = freopen(Terminal, "w", stdout);
stderr = freopen(Terminal, "w", stderr);
}
isyslog(LOG_INFO, "VDR version %s started", VDRVERSION);
// Configuration data:
if (!ConfigDirectory)
ConfigDirectory = VideoDirectory;
Setup.Load(AddDirectory(ConfigDirectory, "setup.conf"));
Channels.Load(AddDirectory(ConfigDirectory, "channels.conf"));
Timers.Load(AddDirectory(ConfigDirectory, "timers.conf"));
Commands.Load(AddDirectory(ConfigDirectory, "commands.conf"));
#if defined(REMOTE_LIRC)
Keys.SetDummyValues();
#elif !defined(REMOTE_NONE)
bool KeysLoaded = Keys.Load(AddDirectory(ConfigDirectory, KEYS_CONF));
#endif
// DVB interfaces:
if (!cDvbApi::Init())
abort();
cDvbApi::SetPrimaryDvbApi(Setup.PrimaryDVB);
Channels.SwitchTo(Setup.CurrentChannel);
cEITScanner EITScanner;
// User interface:
Interface = new cInterface(SVDRPport);
#if !defined(REMOTE_LIRC) && !defined(REMOTE_NONE)
if (!KeysLoaded)
Interface->LearnKeys();
#endif
// Signal handlers:
if (signal(SIGHUP, SignalHandler) == SIG_IGN) signal(SIGHUP, SIG_IGN);
if (signal(SIGINT, SignalHandler) == SIG_IGN) signal(SIGINT, SIG_IGN);
if (signal(SIGTERM, SignalHandler) == SIG_IGN) signal(SIGTERM, SIG_IGN);
if (signal(SIGPIPE, SignalHandler) == SIG_IGN) signal(SIGPIPE, SIG_IGN);
if (WatchdogTimeout > 0)
if (signal(SIGALRM, Watchdog) == SIG_IGN) signal(SIGALRM, SIG_IGN);
// Main program loop:
cOsdBase *Menu = NULL;
cReplayControl *ReplayControl = NULL;
int LastChannel = -1;
int PreviousChannel = cDvbApi::CurrentChannel();
time_t LastActivity = time(NULL);
int MaxLatencyTime = 0;
if (WatchdogTimeout > 0) {
dsyslog(LOG_INFO, "setting watchdog timer to %d seconds", WatchdogTimeout);
alarm(WatchdogTimeout); // Initial watchdog timer start
}
while (!Interrupted) {
// Restart the Watchdog timer:
if (WatchdogTimeout > 0) {
int LatencyTime = WatchdogTimeout - alarm(WatchdogTimeout);
if (LatencyTime > MaxLatencyTime) {
MaxLatencyTime = LatencyTime;
dsyslog(LOG_INFO, "max. latency time %d seconds", MaxLatencyTime);
}
}
// Channel display:
if (!EITScanner.Active() && cDvbApi::CurrentChannel() != LastChannel) {
if (!Menu)
Menu = new cDisplayChannel(cDvbApi::CurrentChannel(), LastChannel > 0);
PreviousChannel = LastChannel;
LastChannel = cDvbApi::CurrentChannel();
}
// Timers and Recordings:
if (!Menu) {
cTimer *Timer = cTimer::GetMatch();
if (Timer) {
if (!cRecordControls::Start(Timer)) {
//TODO need to do something to prevent the timer from hitting over and over again...
}
}
cRecordControls::Process();
}
// User Input:
cOsdBase **Interact = Menu ? &Menu : (cOsdBase **)&ReplayControl;
eKeys key = Interface->GetKey(!*Interact || !(*Interact)->NeedsFastResponse());
if (NORMALKEY(key) != kNone)
EITScanner.Activity();
if (*Interact) {
switch ((*Interact)->ProcessKey(key)) {
case osMenu: DELETENULL(Menu);
Menu = new cMenuMain(ReplayControl);
break;
case osRecord: DELETENULL(Menu);
if (!cRecordControls::Start())
Interface->Error(tr("No free DVB device to record!"));
break;
case osRecordings:
DELETENULL(Menu);
DELETENULL(ReplayControl);
Menu = new cMenuRecordings;
break;
case osReplay: DELETENULL(Menu);
DELETENULL(ReplayControl);
ReplayControl = new cReplayControl;
break;
case osStopReplay:
DELETENULL(*Interact);
DELETENULL(ReplayControl);
break;
case osSwitchDvb:
DELETENULL(*Interact);
Interface->Info(tr("Switching primary DVB..."));
cDvbApi::SetPrimaryDvbApi(Setup.PrimaryDVB);
break;
case osBack:
case osEnd: DELETENULL(*Interact);
break;
default: ;
}
}
else {
switch (key) {
// Toggle channels:
case k0:
if (PreviousChannel != cDvbApi::CurrentChannel())
Channels.SwitchTo(PreviousChannel);
break;
// Direct Channel Select:
case k1 ... k9:
if (!Interface->Recording())
Menu = new cDisplayChannel(key);
break;
// Left/Right rotates trough channel groups:
case kLeft|k_Repeat:
case kLeft:
case kRight|k_Repeat:
case kRight: if (!Interface->Recording()) {
int SaveGroup = CurrentGroup;
if (NORMALKEY(key) == kRight)
CurrentGroup = Channels.GetNextGroup(CurrentGroup) ;
else
CurrentGroup = Channels.GetPrevGroup(CurrentGroup < 1 ? 1 : CurrentGroup);
if (CurrentGroup < 0)
CurrentGroup = SaveGroup;
Menu = new cDisplayChannel(CurrentGroup, false, true);
}
break;
// Up/Down Channel Select:
case kUp|k_Repeat:
case kUp:
case kDown|k_Repeat:
case kDown: if (!Interface->Recording()) {
int n = cDvbApi::CurrentChannel() + (NORMALKEY(key) == kUp ? 1 : -1);
cChannel *channel = Channels.GetByNumber(n);
if (channel)
channel->Switch();
}
break;
// Menu Control:
case kMenu: Menu = new cMenuMain(ReplayControl); break;
// Viewing Control:
case kOk: LastChannel = -1; break; // forces channel display
default: break;
}
}
if (!Menu) {
EITScanner.Process();
cVideoCutter::Active();
}
if (!*Interact && !cRecordControls::Active()) {
if (time(NULL) - LastActivity > ACTIVITYTIMEOUT) {
RemoveDeletedRecordings();
LastActivity = time(NULL);
}
}
else
LastActivity = time(NULL);
}
isyslog(LOG_INFO, "caught signal %d", Interrupted);
Setup.CurrentChannel = cDvbApi::CurrentChannel();
Setup.Save();
cVideoCutter::Stop();
delete Menu;
delete ReplayControl;
delete Interface;
cDvbApi::Cleanup();
if (WatchdogTimeout > 0)
dsyslog(LOG_INFO, "max. latency time %d seconds", MaxLatencyTime);
isyslog(LOG_INFO, "exiting");
if (SysLogLevel > 0)
closelog();
return 0;
}
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