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/*
Copyright (C) 2006 Adam Charrett
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
epgchannel.c
Used to send EPG information to interested parties.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <stdint.h>
#include <pthread.h>
#include <limits.h>
#include <time.h>
#include "main.h"
#include "types.h"
#include "list.h"
#include "logging.h"
#include "objects.h"
#include "messageq.h"
#include "epgchannel.h"
/*******************************************************************************
* Defines *
*******************************************************************************/
#define CHECK_LISTENERS() \
do{ \
int count;\
pthread_mutex_lock(&EPGChannelMutex); \
count = ListCount(EPGChannelListeners); \
pthread_mutex_unlock(&EPGChannelMutex);\
if (count == 0) \
{\
LogModule(LOG_DIARRHEA, EPGCHANNEL, "Not creating message, no listeners!");\
return 0;\
}\
}while(0)
/*******************************************************************************
* Prototypes *
*******************************************************************************/
static void EPGChannelMessageDestructor(void *ptr);
static void EPGChannelSendMessage(EPGChannelMessage_t *msg);
/*******************************************************************************
* Global variables *
*******************************************************************************/
static pthread_mutex_t EPGChannelMutex = PTHREAD_MUTEX_INITIALIZER;
static const char EPGCHANNEL[] = "EPGDChannel";
static List_t *EPGChannelListeners;
/*******************************************************************************
* Global functions *
*******************************************************************************/
int EPGChannelInit(void)
{
ObjectRegisterTypeDestructor(EPGChannelMessage_t, EPGChannelMessageDestructor);
EPGChannelListeners = ListCreate();
return 0;
}
int EPGChannelDeInit()
{
ListFree(EPGChannelListeners, (void(*)(void*))MessageQDestroy);
return 0;
}
int EPGChannelRegisterListener(MessageQ_t msgQ)
{
pthread_mutex_lock(&EPGChannelMutex);
ListAdd(EPGChannelListeners, msgQ);
pthread_mutex_unlock(&EPGChannelMutex);
return 0;
}
int EPGChannelUnregisterListener(MessageQ_t msgQ)
{
pthread_mutex_lock(&EPGChannelMutex);
ListRemove(EPGChannelListeners, msgQ);
pthread_mutex_unlock(&EPGChannelMutex);
return 0;
}
int EPGChannelNewEvent(EPGEventRef_t *eventRef, struct tm *startTime, struct tm *endTime, bool ca)
{
EPGChannelMessage_t *msg;
CHECK_LISTENERS();
msg = ObjectCreateType(EPGChannelMessage_t);
msg->type = EPGChannelMessageType_Event;
msg->eventRef = *eventRef;
msg->data.event.startTime = *startTime;
msg->data.event.endTime = *endTime;
msg->data.event.ca = ca;
EPGChannelSendMessage(msg);
return 0;
}
int EPGChannelNewRating(EPGEventRef_t *eventRef, char *system, char *rating)
{
EPGChannelMessage_t *msg;
CHECK_LISTENERS();
msg = ObjectCreateType(EPGChannelMessage_t);
msg->type = EPGChannelMessageType_Rating;
msg->eventRef = *eventRef;
msg->data.rating.system = strdup(system);
msg->data.rating.rating = strdup(rating);
EPGChannelSendMessage(msg);
return 0;
}
int EPGChannelNewDetail(EPGEventRef_t *eventRef, char *lang, char * name, char *value)
{
EPGChannelMessage_t *msg;
EPGEventDetail_t *eventDetail;
CHECK_LISTENERS();
msg = ObjectCreateType(EPGChannelMessage_t);
msg->type = EPGChannelMessageType_Detail;
msg->eventRef = *eventRef;
memcpy(msg->data.detail.lang, lang, sizeof(eventDetail->lang));
msg->data.detail.name = strdup(name);
msg->data.detail.value = strdup(value);
EPGChannelSendMessage(msg);
return 0;
}
/*******************************************************************************
* Local Functions *
*******************************************************************************/
static void EPGChannelSendMessage(EPGChannelMessage_t *msg)
{
ListIterator_t iterator;
pthread_mutex_lock(&EPGChannelMutex);
for (ListIterator_Init(iterator, EPGChannelListeners); ListIterator_MoreEntries(iterator); ListIterator_Next(iterator))
{
MessageQ_t msgQ = (MessageQ_t)ListIterator_Current(iterator);
MessageQSend(msgQ, msg);
}
pthread_mutex_unlock(&EPGChannelMutex);
ObjectRefDec(msg);
}
static void EPGChannelMessageDestructor(void *ptr)
{
EPGChannelMessage_t *msg = ptr;
switch(msg->type)
{
case EPGChannelMessageType_Event:
break;
case EPGChannelMessageType_Detail:
free(msg->data.detail.name);
free(msg->data.detail.value);
break;
case EPGChannelMessageType_Rating:
free(msg->data.rating.system);
free(msg->data.rating.rating);
break;
}
}
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