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#ifndef VDR_LIVE_FILECACHE_H
#define VDR_LIVE_FILECACHE_H
#include "cache.h"
// STL headers need to be before VDR tools.h (included by <vdr/tools.h>)
#include <limits>
#include <string>
#include <ctime>
#include <vector>
#include <vdr/thread.h>
namespace vdrlive {
class FileObject
{
public:
FileObject( std::string const& path )
: m_ctime( std::numeric_limits< std::time_t >::max() )
, m_path( path ) {}
std::size_t size() const { return m_data.size(); }
std::size_t weight() const { return size(); }
bool is_current() const { return m_ctime == get_filetime( m_path ); }
bool load();
char const* data() const { return &m_data[0]; }
std::time_t ctime() const { return m_ctime; }
private:
static std::time_t get_filetime( std::string const& path );
mutable std::time_t m_ctime;
std::string m_path;
std::vector< char > m_data;
};
class FileCache: public vgstools::cache< std::string, FileObject >
{
typedef vgstools::cache< std::string, FileObject > base_type;
public:
FileCache( size_t maxWeight ): base_type( maxWeight ) {}
ptr_type get( key_type const& key )
{
cMutexLock lock( &m_mutex );
// dsyslog( "vdrlive::FileCache::get( %s )", key.c_str() );
// dsyslog( "vdrlive::FileCache had %u entries (weight: %u)", count(), weight() );
ptr_type result = base_type::get( key );
// dsyslog( "vdrlive::FileCache now has %u entries (weight: %u)", count(), weight() );
// dsyslog( "vdrlive::FileCache::get( %s ) = %p", key.c_str(), result.get() );
return result;
}
private:
cMutex m_mutex;
};
//typedef vgstools::cache< std::string, FileObject > FileCache;
FileCache& LiveFileCache();
} // namespace vdrlive
#endif // VDR_LIVE_FILECACHE_H
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