95   android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(last_command_file.c_str(), O_RDONLY)));  in ParseLastCommandFile()  local
96   if (fd == -1) {  in ParseLastCommandFile()
108   if (!android::base::ReadFdToString(fd.get(), &content)) {  in ParseLastCommandFile()
195 static bool discard_blocks(int fd, off64_t offset, uint64_t size, bool force = false) {  in discard_blocks()  argument
202   if (ioctl(fd, BLKDISCARD, &args) == -1) {  in discard_blocks()
213 static bool check_lseek(int fd, off64_t offset, int whence) {  in check_lseek()  argument
214     off64_t rc = TEMP_FAILURE_RETRY(lseek64(fd, offset, whence));  in check_lseek()
235   RangeSinkWriter(int fd, const RangeSet& tgt)  in RangeSinkWriter()  argument
236       : fd_(fd),  in RangeSinkWriter()
482 static int ReadBlocks(const RangeSet& src, std::vector<uint8_t>* buffer, int fd) {  in ReadBlocks()  argument
485     if (!check_lseek(fd, static_cast<off64_t>(begin) * BLOCKSIZE, SEEK_SET)) {  in ReadBlocks()
490     if (!android::base::ReadFully(fd, buffer->data() + p, size)) {  in ReadBlocks()
502 static int WriteBlocks(const RangeSet& tgt, const std::vector<uint8_t>& buffer, int fd) {  in WriteBlocks()  argument
507     if (!discard_blocks(fd, offset, size)) {  in WriteBlocks()
511     if (!check_lseek(fd, offset, SEEK_SET)) {  in WriteBlocks()
515     if (!android::base::WriteFully(fd, buffer.data() + written, size)) {  in WriteBlocks()
537     android::base::unique_fd fd;  member
637 static void PrintHashForMissingStashedBlocks(const std::string& id, int fd) {  in PrintHashForMissingStashedBlocks()  argument
646   if (ReadBlocks(src, &buffer, fd) == -1) {  in PrintHashForMissingStashedBlocks()
744       if (ReadBlocks(src, buffer, params.fd) == -1) {  in LoadStash()
765       PrintHashForMissingStashedBlocks(id, params.fd);  in LoadStash()
777   android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(fn.c_str(), O_RDONLY)));  in LoadStash()  local
778   if (fd == -1) {  in LoadStash()
786   if (!android::base::ReadFully(fd, buffer->data(), sb.st_size)) {  in LoadStash()
841   android::base::unique_fd fd(  in WriteStash()  local
843   if (fd == -1) {  in WriteStash()
849   if (fchown(fd, AID_SYSTEM, AID_SYSTEM) != 0) {  // system user  in WriteStash()
854   if (!android::base::WriteFully(fd, buffer.data(), blocks * BLOCKSIZE)) {  in WriteStash()
860   if (fsync(fd) == -1) {  in WriteStash()
1016     if (ReadBlocks(src, &params.buffer, params.fd) == -1) {  in LoadSourceBlocks()
1116   if (ReadBlocks(*tgt, &tgtbuffer, params.fd) == -1) {  in LoadSrcTgtVersion3()
1195       if (WriteBlocks(tgt, params.buffer, params.fd) == -1) {  in PerformCommandMove()
1232   if (ReadBlocks(src, &params.buffer, params.fd) == -1) {  in PerformCommandStash()
1293       if (!discard_blocks(params.fd, offset, size)) {  in PerformCommandZero()
1297       if (!check_lseek(params.fd, offset, SEEK_SET)) {  in PerformCommandZero()
1302         if (!android::base::WriteFully(params.fd, params.buffer.data(), BLOCKSIZE)) {  in PerformCommandZero()
1333     params.nti.writer = std::make_unique<RangeSinkWriter>(params.fd, tgt);  in PerformCommandNew()
1398       RangeSinkWriter writer(params.fd, tgt);  in PerformCommandDiff()
1447   if (fstat(params.fd, &sb) == -1) {  in PerformCommandErase()
1471       if (!discard_blocks(params.fd, offset, size, true /* force */)) {  in PerformCommandErase()
1543     if (!check_lseek(params.fd, static_cast<off64_t>(begin) * BLOCKSIZE, SEEK_SET)) {  in PerformCommandComputeHashTree()
1549       if (!android::base::ReadFully(params.fd, buffer, BLOCKSIZE)) {  in PerformCommandComputeHashTree()
1575   if (params.canwrite && !builder.WriteHashTreeToFd(params.fd, write_offset)) {  in PerformCommandComputeHashTree()
1704   params.fd.reset(TEMP_FAILURE_RETRY(open(block_device_path.c_str(), O_RDWR)));  in PerformBlockImageUpdate()
1705   if (params.fd == -1) {  in PerformBlockImageUpdate()
1885       if (fsync(params.fd) == -1) {  in PerformBlockImageUpdate()
1952   if (fsync(params.fd) == -1) {  in PerformBlockImageUpdate()
2098   android::base::unique_fd fd(open(block_device_path.c_str(), O_RDWR));  in RangeSha1Fn()  local
2099   if (fd == -1) {  in RangeSha1Fn()
2114     if (!check_lseek(fd, static_cast<off64_t>(begin) * BLOCKSIZE, SEEK_SET)) {  in RangeSha1Fn()
2121       if (!android::base::ReadFully(fd, buffer.data(), BLOCKSIZE)) {  in RangeSha1Fn()
2169   android::base::unique_fd fd(open(block_device_path.c_str(), O_RDONLY));  in CheckFirstBlockFn()  local
2170   if (fd == -1) {  in CheckFirstBlockFn()
2180   if (ReadBlocks(blk0, &block0_buffer, fd) == -1) {  in CheckFirstBlockFn()