lfs_file_read(&lfs, &file, &boot_count, sizeof(boot_count)); // update boot count boot_count += 1; lfs_file_rewind(&lfs, &file); lfs_file_write(&lfs, &file, &boot_count, sizeof(boot_count)); // remember the storage is not updated until the file is closed successfully lfs_...
int lfs_file_rewind(lfs_t *lfs, lfs_file_t *file); // Return the size of the file // // Similar to lfs_file_seek(lfs, file, 0, LFS_SEEK_END) // Returns the size of the file, or a negative error code on failure. lfs_soff_t lfs_file_size(lfs_t *lfs, lfs_file_...
OpenHarmony-v5.0.3-Release OpenHarmony-v4.1.3-Release OpenHarmony-v5.0.2-Release OpenHarmony-v4.1.2-Release OpenHarmony-v5.0.1-Release OpenHarmony-v4.0.4-Release OpenHarmony-v5.0.0-Release OpenHarmony-v4.0.3-Release OpenHarmony-v4.0.2-Release OpenHarmony-v5.0-Beta1 OpenHarmony-v4.0-Beta2 OpenHarmo...
LFS_ERR_FBIG = -27, // File too large LFS_ERR_INVAL = -22, // Invalid parameter LFS_ERR_NOSPC = -28, // No space left on device LFS_ERR_NOMEM = -12, // No more memory available LFS_ERR_NOATTR = -61, // No data/attr available ...
// Bad file number LFS_ERR_FBIG = -27, // File too large LFS_ERR_INVAL = -22, // Invalid parameter LFS_ERR_NOSPC = -28, // No space left on device LFS_ERR_NOMEM = -12, // No more memory available LFS_ERR_NOATTR = -61, // No data/attr available LFS_ERR_NAMETOOLONG...
close file, open again with RDWR only, rewind, read data back and check verify it's the same as written, close file. On first iteration (test_0) the file is written and read correctly, but on the second it fails. My partial debug output (can provide full, if necessary); ...
5、 rewind 操作: position=0 ,为读取缓冲区中有效数据做准备,一半 limit 已经被合理设置。 9 、读写缓冲区: 1、 public byte get() :顺序读取缓冲区的一个字节, position 会加一 2、 public Buffer get(byte[]dst): 将缓冲区中的数据读入到数组 dst 中,并适当的移动 position ...
rewind(): 仅仅将 position 置0。一般是在重新读取Buffer数据前调用,比如要读取同一个Buffer的数据写入多个通道时会用到。 clear(): 回到初始状态,即 limit 等于 capacity,position 置0。重新对Buffer进行写入操作前调用。 compact(): 将未读取完的数据(position 与 limit 之间的数据)移动到缓冲区开头,并将 posit...
make subdir=dirent -C ../dirent ..=../ objdir=/mnt/lfs/sources/glibc-2.33/build -f Makefile -f ../elf/rtld-Rules rtld-all rtld-modules='rtld-closedir.os rtld-rewinddir.os rtld-readdir64.os rtld-fdopendir.os rtld-rewinddir.os rtld-getdents64.os rtld-readdir64.os' make subdir=...
lfs_file_rewind(&lfs, &file);lfs_file_write(&lfs, &file, &boot_count, sizeof(boot_count))...