LevelDBCacheImpl::LevelDBCacheImpl( const CacheOptions& options ) :
osgEarth::Cache( options ),
_options ( options ),
_active ( true )
{
// Force OSG to initialize the image wrapper. Failure to do this can result
// in a race condition within OSG when the cache is accessed from multiple threads.
osgDB::ObjectWrapperManager* owm = osgDB::Registry::instance()->getObjectWrapperManager();
owm->findWrapper("osg::Image");
owm->findWrapper("osg::HeightField");
if ( _options.rootPath().isSet() )
{
_rootPath = URI( *_options.rootPath(), options.referrer() ).full();
}
else
{
// read the root path from ENV is necessary:
const char* cachePath = ::getenv(OSGEARTH_ENV_CACHE_PATH);
if ( cachePath )
{
_rootPath = cachePath;
OE_INFO << LC << "Cache location set from environment: \""
<< cachePath << "\"" << std::endl;
}
}
const char* maxsize = ::getenv(OSGEARTH_ENV_CACHE_MAX_SIZE_MB);
if ( maxsize )
{
unsigned mb = as<unsigned>(std::string(maxsize), 0u);
if ( mb > 0 )
{
_options.maxSizeMB() = mb;
OE_INFO << LC << "Set max cache size from environment: "
<< (_options.maxSizeMB().value()) << " MB"
<< std::endl;
}
else
{
OE_WARN << LC
<< "Env var \"" OSGEARTH_ENV_CACHE_MAX_SIZE_MB "\" set to an invalid value"
<< std::endl;
}
}
_tracker = new Tracker(_options, _rootPath);
if ( !_rootPath.empty() )
{
init();
}
else
{
_active = false;
OE_WARN << LC << "Illegal: no root path set for cache!" << std::endl;
}
}
LevelDBCacheImpl::LevelDBCacheImpl( const CacheOptions& options ) :
osgEarth::Cache( options ),
_options ( options ),
_active ( true )
{
if ( _options.rootPath().isSet() )
{
_rootPath = URI( *_options.rootPath(), options.referrer() ).full();
}
else
{
// read the root path from ENV is necessary:
const char* cachePath = ::getenv(OSGEARTH_ENV_CACHE_PATH);
if ( cachePath )
{
_rootPath = cachePath;
OE_INFO << LC << "Cache location set from environment: \""
<< cachePath << "\"" << std::endl;
}
}
const char* maxsize = ::getenv(OSGEARTH_ENV_CACHE_MAX_SIZE_MB);
if ( maxsize )
{
unsigned mb = as<unsigned>(std::string(maxsize), 0u);
if ( mb > 0 )
{
_options.maxSizeMB() = mb;
OE_INFO << LC << "Set max cache size from environment: "
<< (_options.maxSizeMB().value()) << " MB"
<< std::endl;
}
else
{
OE_WARN << LC
<< "Env var \"" OSGEARTH_ENV_CACHE_MAX_SIZE_MB "\" set to an invalid value"
<< std::endl;
}
}
_tracker = new Tracker(_options, _rootPath);
if ( !_rootPath.empty() )
{
init();
}
else
{
_active = false;
OE_WARN << LC << "Illegal: no root path set for cache!" << std::endl;
}
}
