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vdr/epg.c
Klaus Schmidinger c23992b807 Version 1.3.42 
- Removed leftover 'needsBufferReserve' variable from cTransfer (thanks to Marco
  Schlüßler).
- Fixed setting "No title" for broken event data (reported by Ronny Kornexl).
- Fixed channel up/down switching on single card systems (reported by Stefan
  Huelswitt).
- Fixed handling "pending" timers that blocked others that actually could record
  (reported by Thomas Koch).
- Speeded up cVideoRepacker (thanks to Reinhard Nissl).
- Added an 'Id' parameter to cDevice::PlayAudio() to allow plugins to easier
  process the audio data (thanks to Marco Schlüßler).
- Added Czech language texts (thanks to Vladimír Bárta).
  Plugin authors may want to add the new entries to their I18N texts and contact
  the translators to have their texts translated. Note that there are now 21
  different OSD languages, so please make sure you have 21 versions for each of
  your texts.
- Updated the Polish OSD texts (thanks to Jaroslaw Swierczynski).
- Fixed auto advance in string entry fields when pressing Up/Down in insert mode
  (reported by Udo Richter).
- Fixed handling the "Setup/OSD/Menu button closes" option when set to 'yes' in
  case a replay is active (thanks to Udo Richter).
- Improved cUnbufferedFile; USE_FADVISE is now defined in tools.c by default, so
  if you don't want to use "fadvise" you need to comment out that line (thanks to
  Artur Skawina).
- Fixed a missing ',' in the Swedish OSD texts (thanks to Arthur Konovalov).
- cDevice::Transferring() can now be used to determine whether the (primary)
  device is currently playing in Transfer Mode (based on a suggestion by
  Reinhard Nissl).
- The 'runvdr' script no longer uses the $VDRUSR environment variable to set
  the user id under which 'vdr' shall run. Just add the '-u username' option
  when you call 'runvdr'.
- Fixed multiple entries of the same subdirectory in the "Recordings" menu
  (reported by Christian Jacobsen).
- Enabled generating a core dump if VDR is run with a different user id (thanks
  to Ville Skyttä).
- Fixed handling the "Blue" key in the "Schedule" menu for the current channel
  (thanks to Rolf Ahrenberg).
- Renamed the Makefile target 'plugins-clean' to 'clean-plugins' (suggested by
  Sebastian Frei).
- Made all font and image data 'const' (thanks to Darren Salt).
- Fixed scrolling with Up/Down in case there are non-selectable items at the
  beginning or end of the menu (reported by Helmut Auer).
- Added cSkin::GetTextAreaWidth() and cSkin::GetTextAreaFont(), so that a plugin
  that wants to do special text formatting can do so (thanks to Alexander Rieger).
2006-02-05 18:00:00 +01:00

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/*
* epg.c: Electronic Program Guide
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* Original version (as used in VDR before 1.3.0) written by
* Robert Schneider <Robert.Schneider@web.de> and Rolf Hakenes <hakenes@hippomi.de>.
*
* $Id: epg.c 1.58 2006/02/03 13:16:54 kls Exp $
*/
#include "epg.h"
#include "libsi/si.h"
#include "timers.h"
#include <ctype.h>
#include <time.h>
#define RUNNINGSTATUSTIMEOUT 30 // seconds before the running status is considered unknown
// --- tComponent ------------------------------------------------------------
cString tComponent::ToString(void)
{
char buffer[256];
snprintf(buffer, sizeof(buffer), "%X %02X %-3s %s", stream, type, language, description ? description : "");
return buffer;
}
bool tComponent::FromString(const char *s)
{
unsigned int Stream, Type;
int n = sscanf(s, "%X %02X %3c %a[^\n]", &Stream, &Type, language, &description);
if (n != 4 || isempty(description)) {
free(description);
description = NULL;
}
stream = Stream;
type = Type;
return n >= 3;
}
// --- cComponents -----------------------------------------------------------
cComponents::cComponents(void)
{
numComponents = 0;
components = NULL;
}
cComponents::~cComponents(void)
{
for (int i = 0; i < numComponents; i++)
free(components[i].description);
free(components);
}
void cComponents::Realloc(int Index)
{
if (Index >= numComponents) {
int n = numComponents;
numComponents = Index + 1;
components = (tComponent *)realloc(components, numComponents * sizeof(tComponent));
memset(&components[n], 0, sizeof(tComponent) * (numComponents - n));
}
}
void cComponents::SetComponent(int Index, const char *s)
{
Realloc(Index);
components[Index].FromString(s);
}
void cComponents::SetComponent(int Index, uchar Stream, uchar Type, const char *Language, const char *Description)
{
Realloc(Index);
tComponent *p = &components[Index];
p->stream = Stream;
p->type = Type;
strn0cpy(p->language, Language, sizeof(p->language));
p->description = strcpyrealloc(p->description, !isempty(Description) ? Description : NULL);
}
// --- cEvent ----------------------------------------------------------------
cEvent::cEvent(u_int16_t EventID)
{
schedule = NULL;
eventID = EventID;
tableID = 0;
version = 0xFF; // actual version numbers are 0..31
runningStatus = 0;
title = NULL;
shortText = NULL;
description = NULL;
components = NULL;
startTime = 0;
duration = 0;
vps = 0;
SetSeen();
}
cEvent::~cEvent()
{
free(title);
free(shortText);
free(description);
delete components;
}
int cEvent::Compare(const cListObject &ListObject) const
{
cEvent *e = (cEvent *)&ListObject;
return startTime - e->startTime;
}
tChannelID cEvent::ChannelID(void) const
{
return schedule ? schedule->ChannelID() : tChannelID();
}
void cEvent::SetEventID(u_int16_t EventID)
{
if (eventID != EventID) {
if (schedule)
schedule->UnhashEvent(this);
eventID = EventID;
if (schedule)
schedule->HashEvent(this);
}
}
void cEvent::SetTableID(uchar TableID)
{
tableID = TableID;
}
void cEvent::SetVersion(uchar Version)
{
version = Version;
}
void cEvent::SetRunningStatus(int RunningStatus, cChannel *Channel)
{
if (Channel && runningStatus != RunningStatus && (RunningStatus > SI::RunningStatusNotRunning || runningStatus > SI::RunningStatusUndefined))
if (Channel->Number() <= 30)//XXX maybe log only those that have timers???
isyslog("channel %d (%s) event %s '%s' status %d", Channel->Number(), Channel->Name(), *GetTimeString(), Title(), RunningStatus);
runningStatus = RunningStatus;
}
void cEvent::SetTitle(const char *Title)
{
title = strcpyrealloc(title, Title);
}
void cEvent::SetShortText(const char *ShortText)
{
shortText = strcpyrealloc(shortText, ShortText);
}
void cEvent::SetDescription(const char *Description)
{
description = strcpyrealloc(description, Description);
}
void cEvent::SetComponents(cComponents *Components)
{
delete components;
components = Components;
}
void cEvent::SetStartTime(time_t StartTime)
{
if (startTime != StartTime) {
if (schedule)
schedule->UnhashEvent(this);
startTime = StartTime;
if (schedule)
schedule->HashEvent(this);
}
}
void cEvent::SetDuration(int Duration)
{
duration = Duration;
}
void cEvent::SetVps(time_t Vps)
{
vps = Vps;
}
void cEvent::SetSeen(void)
{
seen = time(NULL);
}
bool cEvent::HasTimer(void) const
{
for (cTimer *t = Timers.First(); t; t = Timers.Next(t)) {
if (t->Event() == this)
return true;
}
return false;
}
bool cEvent::IsRunning(bool OrAboutToStart) const
{
return SeenWithin(RUNNINGSTATUSTIMEOUT) && runningStatus >= (OrAboutToStart ? SI::RunningStatusStartsInAFewSeconds : SI::RunningStatusPausing);
}
cString cEvent::GetDateString(void) const
{
return DateString(startTime);
}
cString cEvent::GetTimeString(void) const
{
return TimeString(startTime);
}
cString cEvent::GetEndTimeString(void) const
{
return TimeString(startTime + duration);
}
cString cEvent::GetVpsString(void) const
{
char buf[25];
struct tm tm_r;
strftime(buf, sizeof(buf), "%d.%m %R", localtime_r(&vps, &tm_r));
return buf;
}
void cEvent::Dump(FILE *f, const char *Prefix, bool InfoOnly) const
{
if (InfoOnly || startTime + duration + Setup.EPGLinger * 60 >= time(NULL)) {
if (!InfoOnly)
fprintf(f, "%sE %u %ld %d %X %X\n", Prefix, eventID, startTime, duration, tableID, version);
if (!isempty(title))
fprintf(f, "%sT %s\n", Prefix, title);
if (!isempty(shortText))
fprintf(f, "%sS %s\n", Prefix, shortText);
if (!isempty(description)) {
strreplace(description, '\n', '|');
fprintf(f, "%sD %s\n", Prefix, description);
strreplace(description, '|', '\n');
}
if (components) {
for (int i = 0; i < components->NumComponents(); i++) {
tComponent *p = components->Component(i);
if (!Setup.UseDolbyDigital && p->stream == 0x02 && p->type == 0x05)
continue;
fprintf(f, "%sX %s\n", Prefix, *p->ToString());
}
}
if (!InfoOnly && vps)
fprintf(f, "%sV %ld\n", Prefix, vps);
if (!InfoOnly)
fprintf(f, "%se\n", Prefix);
}
}
bool cEvent::Parse(char *s)
{
char *t = skipspace(s + 1);
switch (*s) {
case 'T': SetTitle(t);
break;
case 'S': SetShortText(t);
break;
case 'D': strreplace(t, '|', '\n');
SetDescription(t);
break;
case 'X': if (!components)
components = new cComponents;
components->SetComponent(components->NumComponents(), t);
break;
case 'V': SetVps(atoi(t));
break;
default: esyslog("ERROR: unexpected tag while reading EPG data: %s", s);
return false;
}
return true;
}
bool cEvent::Read(FILE *f, cSchedule *Schedule)
{
if (Schedule) {
cEvent *Event = NULL;
char *s;
int line = 0;
cReadLine ReadLine;
while ((s = ReadLine.Read(f)) != NULL) {
line++;
char *t = skipspace(s + 1);
switch (*s) {
case 'E': if (!Event) {
unsigned int EventID;
time_t StartTime;
int Duration;
unsigned int TableID = 0;
unsigned int Version = 0xFF;
int n = sscanf(t, "%u %ld %d %X %X", &EventID, &StartTime, &Duration, &TableID, &Version);
if (n >= 3 && n <= 5) {
Event = (cEvent *)Schedule->GetEvent(EventID, StartTime);
cEvent *newEvent = NULL;
if (Event)
DELETENULL(Event->components);
if (!Event)
Event = newEvent = new cEvent(EventID);
if (Event) {
Event->SetTableID(TableID);
if (TableID >= 0x50) // makes sure the running status flag is set from the actual data stream
Event->SetVersion(Version);
Event->SetStartTime(StartTime);
Event->SetDuration(Duration);
if (newEvent)
Schedule->AddEvent(newEvent);
}
}
}
break;
case 'e': if (Event && !Event->Title())
Event->SetTitle(tr("No title"));
Event = NULL;
break;
case 'c': // to keep things simple we react on 'c' here
return true;
default: if (Event && !Event->Parse(s)) {
esyslog("ERROR: EPG data problem in line %d", line);
return false;
}
}
}
esyslog("ERROR: unexpected end of file while reading EPG data");
}
return false;
}
#define MAXEPGBUGFIXSTATS 13
#define MAXEPGBUGFIXCHANS 100
struct tEpgBugFixStats {
int hits;
int n;
tChannelID channelIDs[MAXEPGBUGFIXCHANS];
tEpgBugFixStats(void) { hits = n = 0; }
};
tEpgBugFixStats EpgBugFixStats[MAXEPGBUGFIXSTATS];
static void EpgBugFixStat(int Number, tChannelID ChannelID)
{
if (0 <= Number && Number < MAXEPGBUGFIXSTATS) {
tEpgBugFixStats *p = &EpgBugFixStats[Number];
p->hits++;
int i = 0;
for (; i < p->n; i++) {
if (p->channelIDs[i] == ChannelID)
break;
}
if (i == p->n && p->n < MAXEPGBUGFIXCHANS)
p->channelIDs[p->n++] = ChannelID;
}
}
void ReportEpgBugFixStats(bool Reset)
{
if (Setup.EPGBugfixLevel > 0) {
bool GotHits = false;
char buffer[1024];
for (int i = 0; i < MAXEPGBUGFIXSTATS; i++) {
const char *delim = "\t";
tEpgBugFixStats *p = &EpgBugFixStats[i];
if (p->hits) {
bool PrintedStats = false;
char *q = buffer;
*buffer = 0;
for (int c = 0; c < p->n; c++) {
cChannel *channel = Channels.GetByChannelID(p->channelIDs[c], true);
if (channel) {
if (!GotHits) {
dsyslog("=====================");
dsyslog("EPG bugfix statistics");
dsyslog("=====================");
dsyslog("IF SOMEBODY WHO IS IN CHARGE OF THE EPG DATA FOR ONE OF THE LISTED");
dsyslog("CHANNELS READS THIS: PLEASE TAKE A LOOK AT THE FUNCTION cEvent::FixEpgBugs()");
dsyslog("IN VDR/epg.c TO LEARN WHAT'S WRONG WITH YOUR DATA, AND FIX IT!");
dsyslog("=====================");
dsyslog("Fix\tHits\tChannels");
GotHits = true;
}
if (!PrintedStats) {
q += snprintf(q, sizeof(buffer) - (q - buffer), "%d\t%d", i, p->hits);
PrintedStats = true;
}
q += snprintf(q, sizeof(buffer) - (q - buffer), "%s%s", delim, channel->Name());
delim = ", ";
if (q - buffer > 80) {
q += snprintf(q, sizeof(buffer) - (q - buffer), "%s...", delim);
break;
}
}
}
if (*buffer)
dsyslog("%s", buffer);
}
if (Reset)
p->hits = p->n = 0;
}
if (GotHits)
dsyslog("=====================");
}
}
void cEvent::FixEpgBugs(void)
{
// VDR can't usefully handle newline characters in the title and shortText of EPG
// data, so let's always convert them to blanks (independent of the setting of EPGBugfixLevel):
strreplace(title, '\n', ' ');
strreplace(shortText, '\n', ' ');
// Same for control characters:
strreplace(title, '\x86', ' ');
strreplace(title, '\x87', ' ');
strreplace(shortText, '\x86', ' ');
strreplace(shortText, '\x87', ' ');
strreplace(description, '\x86', ' ');
strreplace(description, '\x87', ' ');
if (!title) {
// we don't want any "(null)" titles
title = strcpyrealloc(title, tr("No title"));
EpgBugFixStat(12, ChannelID());
}
if (Setup.EPGBugfixLevel == 0)
return;
// Some TV stations apparently have their own idea about how to fill in the
// EPG data. Let's fix their bugs as good as we can:
// Some channels put the ShortText in quotes and use either the ShortText
// or the Description field, depending on how long the string is:
//
// Title
// "ShortText". Description
//
if ((shortText == NULL) != (description == NULL)) {
char *p = shortText ? shortText : description;
if (*p == '"') {
const char *delim = "\".";
char *e = strstr(p + 1, delim);
if (e) {
*e = 0;
char *s = strdup(p + 1);
char *d = strdup(e + strlen(delim));
free(shortText);
free(description);
shortText = s;
description = d;
EpgBugFixStat(1, ChannelID());
}
}
}
// Some channels put the Description into the ShortText (preceded
// by a blank) if there is no actual ShortText and the Description
// is short enough:
//
// Title
// Description
//
if (shortText && !description) {
if (*shortText == ' ') {
memmove(shortText, shortText + 1, strlen(shortText));
description = shortText;
shortText = NULL;
EpgBugFixStat(2, ChannelID());
}
}
// Sometimes they repeat the Title in the ShortText:
//
// Title
// Title
//
if (shortText && strcmp(title, shortText) == 0) {
free(shortText);
shortText = NULL;
EpgBugFixStat(3, ChannelID());
}
// Some channels put the ShortText between double quotes, which is nothing
// but annoying (some even put a '.' after the closing '"'):
//
// Title
// "ShortText"[.]
//
if (shortText && *shortText == '"') {
int l = strlen(shortText);
if (l > 2 && (shortText[l - 1] == '"' || (shortText[l - 1] == '.' && shortText[l - 2] == '"'))) {
memmove(shortText, shortText + 1, l);
char *p = strrchr(shortText, '"');
if (p)
*p = 0;
EpgBugFixStat(4, ChannelID());
}
}
if (Setup.EPGBugfixLevel <= 1)
return;
// Some channels apparently try to do some formatting in the texts,
// which is a bad idea because they have no way of knowing the width
// of the window that will actually display the text.
// Remove excess whitespace:
title = compactspace(title);
shortText = compactspace(shortText);
description = compactspace(description);
#define MAX_USEFUL_EPISODE_LENGTH 40
// Some channels put a whole lot of information in the ShortText and leave
// the Description totally empty. So if the ShortText length exceeds
// MAX_USEFUL_EPISODE_LENGTH, let's put this into the Description
// instead:
if (!isempty(shortText) && isempty(description)) {
if (strlen(shortText) > MAX_USEFUL_EPISODE_LENGTH) {
free(description);
description = shortText;
shortText = NULL;
EpgBugFixStat(6, ChannelID());
}
}
// Some channels put the same information into ShortText and Description.
// In that case we delete one of them:
if (shortText && description && strcmp(shortText, description) == 0) {
if (strlen(shortText) > MAX_USEFUL_EPISODE_LENGTH) {
free(shortText);
shortText = NULL;
}
else {
free(description);
description = NULL;
}
EpgBugFixStat(7, ChannelID());
}
// Some channels use the ` ("backtick") character, where a ' (single quote)
// would be normally used. Actually, "backticks" in normal text don't make
// much sense, so let's replace them:
strreplace(title, '`', '\'');
strreplace(shortText, '`', '\'');
strreplace(description, '`', '\'');
if (Setup.EPGBugfixLevel <= 2)
return;
// The stream components have a "description" field which some channels
// apparently have no idea of how to set correctly:
if (components) {
for (int i = 0; i < components->NumComponents(); i++) {
tComponent *p = components->Component(i);
switch (p->stream) {
case 0x01: { // video
if (p->description) {
if (strcasecmp(p->description, "Video") == 0 ||
strcasecmp(p->description, "Bildformat") == 0) {
// Yes, we know it's video - that's what the 'stream' code
// is for! But _which_ video is it?
free(p->description);
p->description = NULL;
EpgBugFixStat(8, ChannelID());
}
}
if (!p->description) {
switch (p->type) {
case 0x01:
case 0x05: p->description = strdup("4:3"); break;
case 0x02:
case 0x03:
case 0x06:
case 0x07: p->description = strdup("16:9"); break;
case 0x04:
case 0x08: p->description = strdup(">16:9"); break;
case 0x09:
case 0x0D: p->description = strdup("HD 4:3"); break;
case 0x0A:
case 0x0B:
case 0x0E:
case 0x0F: p->description = strdup("HD 16:9"); break;
case 0x0C:
case 0x10: p->description = strdup("HD >16:9"); break;
}
EpgBugFixStat(9, ChannelID());
}
}
break;
case 0x02: { // audio
if (p->description) {
if (strcasecmp(p->description, "Audio") == 0) {
// Yes, we know it's audio - that's what the 'stream' code
// is for! But _which_ audio is it?
free(p->description);
p->description = NULL;
EpgBugFixStat(10, ChannelID());
}
}
if (!p->description) {
switch (p->type) {
case 0x05: p->description = strdup("Dolby Digital"); break;
// all others will just display the language
}
EpgBugFixStat(11, ChannelID());
}
}
break;
}
}
}
}
// --- cSchedule -------------------------------------------------------------
cSchedule::cSchedule(tChannelID ChannelID)
{
channelID = ChannelID;
hasRunning = false;;
modified = 0;
presentSeen = 0;
}
cEvent *cSchedule::AddEvent(cEvent *Event)
{
events.Add(Event);
Event->schedule = this;
HashEvent(Event);
return Event;
}
void cSchedule::DelEvent(cEvent *Event)
{
if (Event->schedule == this) {
UnhashEvent(Event);
events.Del(Event);
}
}
void cSchedule::HashEvent(cEvent *Event)
{
eventsHashID.Add(Event, Event->EventID());
if (Event->StartTime() > 0) // 'StartTime < 0' is apparently used with NVOD channels
eventsHashStartTime.Add(Event, Event->StartTime());
}
void cSchedule::UnhashEvent(cEvent *Event)
{
eventsHashID.Del(Event, Event->EventID());
if (Event->StartTime() > 0) // 'StartTime < 0' is apparently used with NVOD channels
eventsHashStartTime.Del(Event, Event->StartTime());
}
const cEvent *cSchedule::GetPresentEvent(void) const
{
const cEvent *pe = NULL;
time_t now = time(NULL);
for (cEvent *p = events.First(); p; p = events.Next(p)) {
if (p->StartTime() <= now && now < p->EndTime())
pe = p;
if (p->SeenWithin(RUNNINGSTATUSTIMEOUT) && p->RunningStatus() >= SI::RunningStatusPausing)
return p;
}
return pe;
}
const cEvent *cSchedule::GetFollowingEvent(void) const
{
const cEvent *p = GetPresentEvent();
if (p)
p = events.Next(p);
return p;
}
const cEvent *cSchedule::GetEvent(u_int16_t EventID, time_t StartTime) const
{
// Returns either the event info with the given EventID or, if that one can't
// be found, the one with the given StartTime (or NULL if neither can be found)
cEvent *pt = eventsHashID.Get(EventID);
if (!pt && StartTime > 0) // 'StartTime < 0' is apparently used with NVOD channels
pt = eventsHashStartTime.Get(StartTime);
return pt;
}
const cEvent *cSchedule::GetEventAround(time_t Time) const
{
const cEvent *pe = NULL;
time_t delta = INT_MAX;
for (cEvent *p = events.First(); p; p = events.Next(p)) {
time_t dt = Time - p->StartTime();
if (dt >= 0 && dt < delta && p->EndTime() >= Time) {
delta = dt;
pe = p;
}
}
return pe;
}
void cSchedule::SetRunningStatus(cEvent *Event, int RunningStatus, cChannel *Channel)
{
for (cEvent *p = events.First(); p; p = events.Next(p)) {
if (p == Event)
p->SetRunningStatus(RunningStatus, Channel);
else if (RunningStatus >= SI::RunningStatusPausing && p->RunningStatus() > SI::RunningStatusNotRunning)
p->SetRunningStatus(SI::RunningStatusNotRunning);
}
if (RunningStatus >= SI::RunningStatusPausing)
hasRunning = true;
}
void cSchedule::ClrRunningStatus(cChannel *Channel)
{
if (hasRunning) {
for (cEvent *p = events.First(); p; p = events.Next(p)) {
if (p->RunningStatus() >= SI::RunningStatusPausing) {
p->SetRunningStatus(SI::RunningStatusNotRunning, Channel);
hasRunning = false;
break;
}
}
}
}
void cSchedule::ResetVersions(void)
{
for (cEvent *p = events.First(); p; p = events.Next(p))
p->SetVersion(0xFF);
}
void cSchedule::Sort(void)
{
events.Sort();
}
void cSchedule::DropOutdated(time_t SegmentStart, time_t SegmentEnd, uchar TableID, uchar Version)
{
if (SegmentStart > 0 && SegmentEnd > 0) {
for (cEvent *p = events.First(); p; p = events.Next(p)) {
if (p->EndTime() > SegmentStart) {
if (p->StartTime() < SegmentEnd) {
// The event overlaps with the given time segment.
if (p->TableID() > TableID || p->TableID() == TableID && p->Version() != Version) {
// The segment overwrites all events from tables with higher ids, and
// within the same table id all events must have the same version.
// We can't delete the event right here because a timer might have
// a pointer to it, so let's set its id and start time to 0 to have it
// "phased out":
UnhashEvent(p);
p->eventID = 0;
p->startTime = 0;
}
}
else
break;
}
}
}
}
void cSchedule::Cleanup(void)
{
Cleanup(time(NULL));
}
void cSchedule::Cleanup(time_t Time)
{
cEvent *Event;
while ((Event = events.First()) != NULL) {
if (!Event->HasTimer() && Event->EndTime() + Setup.EPGLinger * 60 + 3600 < Time) // adding one hour for safety
DelEvent(Event);
else
break;
}
}
void cSchedule::Dump(FILE *f, const char *Prefix, eDumpMode DumpMode, time_t AtTime) const
{
cChannel *channel = Channels.GetByChannelID(channelID, true);
if (channel) {
fprintf(f, "%sC %s %s\n", Prefix, *channel->GetChannelID().ToString(), channel->Name());
const cEvent *p;
switch (DumpMode) {
case dmAll: {
for (p = events.First(); p; p = events.Next(p))
p->Dump(f, Prefix);
}
break;
case dmPresent: {
if ((p = GetPresentEvent()) != NULL)
p->Dump(f, Prefix);
}
break;
case dmFollowing: {
if ((p = GetFollowingEvent()) != NULL)
p->Dump(f, Prefix);
}
break;
case dmAtTime: {
if ((p = GetEventAround(AtTime)) != NULL)
p->Dump(f, Prefix);
}
break;
}
fprintf(f, "%sc\n", Prefix);
}
}
bool cSchedule::Read(FILE *f, cSchedules *Schedules)
{
if (Schedules) {
cReadLine ReadLine;
char *s;
while ((s = ReadLine.Read(f)) != NULL) {
if (*s == 'C') {
s = skipspace(s + 1);
char *p = strchr(s, ' ');
if (p)
*p = 0; // strips optional channel name
if (*s) {
tChannelID channelID = tChannelID::FromString(s);
if (channelID.Valid()) {
cSchedule *p = Schedules->AddSchedule(channelID);
if (p) {
if (!cEvent::Read(f, p))
return false;
p->Sort();
Schedules->SetModified(p);
}
}
else {
esyslog("ERROR: invalid channel ID: %s", s);
return false;
}
}
}
else {
esyslog("ERROR: unexpected tag while reading EPG data: %s", s);
return false;
}
}
return true;
}
return false;
}
// --- cSchedulesLock --------------------------------------------------------
cSchedulesLock::cSchedulesLock(bool WriteLock, int TimeoutMs)
{
locked = cSchedules::schedules.rwlock.Lock(WriteLock, TimeoutMs);
}
cSchedulesLock::~cSchedulesLock()
{
if (locked)
cSchedules::schedules.rwlock.Unlock();
}
// --- cSchedules ------------------------------------------------------------
cSchedules cSchedules::schedules;
const char *cSchedules::epgDataFileName = NULL;
time_t cSchedules::lastCleanup = time(NULL);
time_t cSchedules::lastDump = time(NULL);
time_t cSchedules::modified = 0;
const cSchedules *cSchedules::Schedules(cSchedulesLock &SchedulesLock)
{
return SchedulesLock.Locked() ? &schedules : NULL;
}
void cSchedules::SetEpgDataFileName(const char *FileName)
{
delete epgDataFileName;
epgDataFileName = FileName ? strdup(FileName) : NULL;
}
void cSchedules::SetModified(cSchedule *Schedule)
{
Schedule->SetModified();
modified = time(NULL);
}
void cSchedules::Cleanup(bool Force)
{
if (Force)
lastDump = 0;
time_t now = time(NULL);
struct tm tm_r;
struct tm *ptm = localtime_r(&now, &tm_r);
if (now - lastCleanup > 3600) {
isyslog("cleaning up schedules data");
cSchedulesLock SchedulesLock(true, 1000);
cSchedules *s = (cSchedules *)Schedules(SchedulesLock);
if (s) {
for (cSchedule *p = s->First(); p; p = s->Next(p))
p->Cleanup(now);
}
lastCleanup = now;
if (ptm->tm_hour == 5)
ReportEpgBugFixStats(true);
}
if (epgDataFileName && now - lastDump > 600) {
cSafeFile f(epgDataFileName);
if (f.Open()) {
Dump(f);
f.Close();
}
else
LOG_ERROR;
lastDump = now;
}
}
void cSchedules::ResetVersions(void)
{
cSchedulesLock SchedulesLock(true);
cSchedules *s = (cSchedules *)Schedules(SchedulesLock);
if (s) {
for (cSchedule *Schedule = s->First(); Schedule; Schedule = s->Next(Schedule))
Schedule->ResetVersions();
}
}
bool cSchedules::ClearAll(void)
{
cSchedulesLock SchedulesLock(true, 1000);
cSchedules *s = (cSchedules *)Schedules(SchedulesLock);
if (s) {
for (cTimer *Timer = Timers.First(); Timer; Timer = Timers.Next(Timer))
Timer->SetEvent(NULL);
for (cSchedule *Schedule = s->First(); Schedule; Schedule = s->Next(Schedule))
Schedule->Cleanup(INT_MAX);
return true;
}
return false;
}
bool cSchedules::Dump(FILE *f, const char *Prefix, eDumpMode DumpMode, time_t AtTime)
{
cSchedulesLock SchedulesLock;
cSchedules *s = (cSchedules *)Schedules(SchedulesLock);
if (s) {
for (cSchedule *p = s->First(); p; p = s->Next(p))
p->Dump(f, Prefix, DumpMode, AtTime);
return true;
}
return false;
}
bool cSchedules::Read(FILE *f)
{
cSchedulesLock SchedulesLock(true, 1000);
cSchedules *s = (cSchedules *)Schedules(SchedulesLock);
if (s) {
bool OwnFile = f == NULL;
if (OwnFile) {
if (epgDataFileName && access(epgDataFileName, R_OK) == 0) {
dsyslog("reading EPG data from %s", epgDataFileName);
if ((f = fopen(epgDataFileName, "r")) == NULL) {
LOG_ERROR;
return false;
}
}
else
return false;
}
bool result = cSchedule::Read(f, s);
if (OwnFile)
fclose(f);
if (result) {
// Initialize the channels' schedule pointers, so that the first WhatsOn menu will come up faster:
for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel))
s->GetSchedule(Channel);
}
return result;
}
return false;
}
cSchedule *cSchedules::AddSchedule(tChannelID ChannelID)
{
ChannelID.ClrRid();
cSchedule *p = (cSchedule *)GetSchedule(ChannelID);
if (!p) {
p = new cSchedule(ChannelID);
Add(p);
}
return p;
}
const cSchedule *cSchedules::GetSchedule(tChannelID ChannelID) const
{
ChannelID.ClrRid();
for (cSchedule *p = First(); p; p = Next(p)) {
if (p->ChannelID() == ChannelID)
return p;
}
return NULL;
}
const cSchedule *cSchedules::GetSchedule(const cChannel *Channel, bool AddIfMissing) const
{
// This is not very beautiful, but it dramatically speeds up the
// "What's on now/next?" menus.
static cSchedule DummySchedule(tChannelID::InvalidID);
if (!Channel->schedule)
Channel->schedule = GetSchedule(Channel->GetChannelID());
if (!Channel->schedule)
Channel->schedule = &DummySchedule;
if (Channel->schedule == &DummySchedule && AddIfMissing) {
cSchedule *Schedule = new cSchedule(Channel->GetChannelID());
((cSchedules *)this)->Add(Schedule);
Channel->schedule = Schedule;
}
return Channel->schedule != &DummySchedule? Channel->schedule : NULL;
}
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