+ make use of GDALOpenShared instead of GDALOpen, which could be better performing when using multiple equal datasource reads (no need to open multiple datasources, and yes it is still thread safe)
+ make use of GDALOpenShared instead of GDALOpen, which could be better performing when using multiple equal datasource reads (no need to open multiple datasources, and yes it is still thread safe)


whuaegeanse/mapnik,rouault/mapnik,strk/mapnik,Uli1/mapnik,pnorman/mapnik,rouault/mapnik,Airphrame/mapnik,cjmayo/mapnik,zerebubuth/mapnik,Mappy/mapnik,Airphrame/mapnik,mbrukman/mapnik,mapnik/python-mapnik,davenquinn/python-mapnik,qianwenming/mapnik,qianwenming/mapnik,tomhughes/mapnik,zerebubuth/mapnik,stefanklug/mapnik,davenquinn/python-mapnik,mapnik/python-mapnik,naturalatlas/mapnik,mapnik/mapnik,sebastic/python-mapnik,tomhughes/mapnik,tomhughes/mapnik,qianwenming/mapnik,pramsey/mapnik,mapnik/mapnik,strk/mapnik,CartoDB/mapnik,kapouer/mapnik,mapycz/mapnik,kapouer/mapnik,mbrukman/mapnik,yohanboniface/python-mapnik,garnertb/python-mapnik,kapouer/mapnik,manz/python-mapnik,manz/python-mapnik,zerebubuth/mapnik,jwomeara/mapnik,manz/python-mapnik,pnorman/mapnik,tomhughes/python-mapnik,yiqingj/work,tomhughes/mapnik,garnertb/python-mapnik,strk/mapnik,jwomeara/mapnik,sebastic/python-mapnik,jwomeara/mapnik,rouault/mapnik,lightmare/mapnik,Uli1/mapnik,Mappy/mapnik,mapycz/python-mapnik,lightmare/mapnik,strk/mapnik,tomhughes/python-mapnik,Uli1/mapnik,Airphrame/mapnik,davenquinn/python-mapnik,pnorman/mapnik,cjmayo/mapnik,yohanboniface/python-mapnik,whuaegeanse/mapnik,pramsey/mapnik,tomhughes/python-mapnik,pramsey/mapnik,mapycz/mapnik,kapouer/mapnik,stefanklug/mapnik,stefanklug/mapnik,mbrukman/mapnik,Mappy/mapnik,garnertb/python-mapnik,rouault/mapnik,cjmayo/mapnik,yohanboniface/python-mapnik,Mappy/mapnik,mbrukman/mapnik,mapycz/mapnik,lightmare/mapnik,Airphrame/mapnik,mapnik/mapnik,stefanklug/mapnik,sebastic/python-mapnik,naturalatlas/mapnik,qianwenming/mapnik,naturalatlas/mapnik,yiqingj/work,whuaegeanse/mapnik,lightmare/mapnik,Uli1/mapnik,cjmayo/mapnik,CartoDB/mapnik,qianwenming/mapnik,naturalatlas/mapnik,pramsey/mapnik,mapycz/python-mapnik,yiqingj/work,whuaegeanse/mapnik,mapnik/python-mapnik,yiqingj/work,jwomeara/mapnik,pnorman/mapnik,mapnik/mapnik,CartoDB/mapnik