void write_block(vdblock &block) {
int realsize;
uint8_t * outdata;
block.dblock->write(&outdata, realsize);
std::string blockfname = blockfilename(block.blockid);
iomgr->managed_pwritea_now(block.fd, &outdata, realsize, 0); /* Need to write whole block in the compressed regime */
write_block_uncompressed_size(blockfname, realsize);
}
void init_block(int blockid) {
std::string bfilename = blockfilename(blockid);
if (!file_exists(bfilename)) {
mkdir(dirname.c_str(), 0777);
size_t initsize = verticesperblock * sizeof(typename VertexDataType::sizeword_t);
int f = open(bfilename.c_str(), O_RDWR | O_CREAT, S_IROTH | S_IWOTH | S_IWUSR | S_IRUSR);
uint8_t * zeros = (uint8_t *) calloc(verticesperblock, sizeof(typename VertexDataType::sizeword_t));
write_compressed(f, zeros, initsize);
free(zeros);
write_block_uncompressed_size(bfilename, initsize);
close(f);
}
}
void commit_now(stripedio * iomgr) {
if (active && data != NULL && writedesc >= 0) {
size_t len = ptr-data;
if (len > end-offset) len = end-offset;
if (is_edata_block) {
uint8_t * outdata = NULL;
int realsize;
dynblock->write(&outdata, realsize);
write_block_uncompressed_size(blockfilename, realsize);
iomgr->managed_pwritea_now(writedesc, &outdata, realsize, 0); /* Need to write whole block in the compressed regime */
free(outdata);
} else {
iomgr->managed_pwritea_now(writedesc, &data, len, offset);
}
}
}
