/* \brief Open existing data source \param pszFilename data source name to be open \param pUpdate non-zero for update, zero for read-only \return pointer to OGRDataSource instance \return NULL on failure */ OGRDataSource *OGRVFKDriver::Open(const char * pszFilename, int bUpdate) { OGRVFKDataSource *poDS; if (bUpdate) return NULL; poDS = new OGRVFKDataSource(); if(!poDS->Open(pszFilename, TRUE) || poDS->GetLayerCount() == 0) { delete poDS; return NULL; } else return poDS; }
/* \brief Open existing data source \return NULL on failure */ static GDALDataset *OGRVFKDriverOpen(GDALOpenInfo* poOpenInfo) { if( poOpenInfo->eAccess == GA_Update || !OGRVFKDriverIdentify(poOpenInfo) ) return nullptr; OGRVFKDataSource *poDS = new OGRVFKDataSource(); if( !poDS->Open(poOpenInfo) || poDS->GetLayerCount() == 0 ) { delete poDS; return nullptr; } else return poDS; }
/* \brief Open existing data source \return NULL on failure */ static GDALDataset *OGRVFKDriverOpen(GDALOpenInfo* poOpenInfo) { OGRVFKDataSource *poDS; if( poOpenInfo->eAccess == GA_Update || !OGRVFKDriverIdentify(poOpenInfo) ) return NULL; poDS = new OGRVFKDataSource(); if(!poDS->Open(poOpenInfo->pszFilename, TRUE) || poDS->GetLayerCount() == 0) { delete poDS; return NULL; } else return poDS; }