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/*
* GraphLCD plugin for the Video Disk Recorder
*
* extdata.c - external data sent via SVDRP
*
* This file is released under the GNU General Public License. Refer
* to the COPYING file distributed with this package.
*
* (c) 2011 Wolfgang Astleitner <mrwastl AT users sourceforge net>
*/
#include "extdata.h"
#include <vdr/tools.h>
#include <stdio.h>
cExtData * cExtData::mExtDataInstance = NULL;
cExtData * cExtData::GetExtData(void) {
if (mExtDataInstance == NULL) {
mExtDataInstance = new cExtData();
}
return mExtDataInstance;
}
void cExtData::ReleaseExtData(void) {
delete mExtDataInstance;
mExtDataInstance = NULL;
}
cExtData::~cExtData(void) {
data.clear();
expData.clear();
}
bool cExtData::Set(const std::string & key, const std::string & value, const std::string & scope, uint32_t expire ) {
if (mExtDataInstance == NULL) return false; // paranoia check
std::string compkey = scope; compkey += ":"; compkey += key; // <scope>:<key>, <scope> can be "" (== global)
data[compkey] = value;
if (expire > 0) {
expData[compkey] = cTimeMs::Now() + (expire * 1000);
} else {
expData.erase(compkey); // just in case of an old expiration entry for compkey
}
return true;
}
bool cExtData::Unset(const std::string & key, const std::string & scope ) {
if (mExtDataInstance == NULL) return false; // paranoia check
std::string compkey = scope; compkey += ":"; compkey += key; // <scope>:<key>, <scope> can be "" (== global)
expData.erase(compkey); // ignore result;
return ( (data.erase(compkey) > 0) ? true : false );
}
bool cExtData::IsSet(const std::string & key, const std::string & scope ) {
std::string ret = Get(key, scope);
return ( (ret != "") ? true : false );
}
std::string cExtData::Get(const std::string & key, const std::string & scope ) {
if (mExtDataInstance == NULL) return ""; // paranoia check
std::string compkey;
int l = 0;
int loops = (scope == "") ? 1 : 2;
while ( l < loops) {
compkey = (l == 0) ? scope : ""; compkey += ":"; compkey += key; // 1st loop: display-scope, 2nd loop: global
it = data.find(compkey);
if ( it != data.end() ) {
expDataIt = expData.find(compkey);
if ( expDataIt != expData.end() ) {
uint64_t expts = (*expDataIt).second;
if ( cTimeMs::Now() > expts ) {
expData.erase(compkey);
data.erase(compkey);
// expired, thus no result here, but maybe there'll be a hit in global scope, so don't return here
} else {
return (*it).second;
}
} else {
return (*it).second;
}
}
l++;
}
return "";
}
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