diff options
| author | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2023-06-04 14:36:25 +0200 |
|---|---|---|
| committer | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2023-06-04 15:09:05 +0200 |
| commit | 723306c417b3b0f8e6a3904906d6c5612cace432 (patch) | |
| tree | 34235c4e6e11a1702e61d81f4f58bc9f3da57c58 /lib/tar/src/iterator.c | |
| parent | 061fbc12fe49ff49088a644def3227d3800cd8a7 (diff) | |
libio: Move istream_t precache logic into backend implementation
The end goal is to remove direct buffer access from the istream_t
interfaces and make that opaque. For the tar implementation, this
already safes us needless buffer copying, as we essentially allow
the user to read-through from the underlying stream.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/tar/src/iterator.c')
| -rw-r--r-- | lib/tar/src/iterator.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/tar/src/iterator.c b/lib/tar/src/iterator.c index 0940905..532eb8c 100644 --- a/lib/tar/src/iterator.c +++ b/lib/tar/src/iterator.c @@ -104,6 +104,12 @@ static int strm_precache(istream_t *strm) tar_istream_t *tar = (tar_istream_t *)strm; sqfs_u64 diff; + strm->buffer_used -= strm->buffer_offset; + strm->buffer_offset = 0; + + if (strm->eof) + return 0; + tar->parent->offset += tar->parent->last_chunk; if (!tar->parent->last_sparse) { |