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| author | Lasse Collin <lasse.collin@tukaani.org> | 2009-11-25 12:52:56 +0200 |
|---|---|---|
| committer | Lasse Collin <lasse.collin@tukaani.org> | 2009-11-25 12:52:56 +0200 |
| commit | 1f196909143b888e062bd9a0c4ba8c34d3019bfa (patch) | |
| tree | df2c1aeea3f3a39db0ab43112f5336d76bb01c3a /src/liblzma/api/lzma/index.h | |
| parent | Create sparse files by default when decompressing into (diff) | |
| download | xz-1f196909143b888e062bd9a0c4ba8c34d3019bfa.tar.xz | |
Index decoder fixes.
The Index decoder code didn't perfectly match the API docs,
which said that *i will be set to point to the decoded Index
only after decoding has succeeded. The docs were a bit unclear
too.
Now the decoder will initially set *i to NULL. *i will be set
to point to the decoded Index once decoding has succeeded.
This simplifies applications too, since it avoids dangling
pointers.
Diffstat (limited to '')
| -rw-r--r-- | src/liblzma/api/lzma/index.h | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/src/liblzma/api/lzma/index.h b/src/liblzma/api/lzma/index.h index da9a622a..3490e4c6 100644 --- a/src/liblzma/api/lzma/index.h +++ b/src/liblzma/api/lzma/index.h @@ -317,12 +317,13 @@ extern LZMA_API(lzma_ret) lzma_index_encoder(lzma_stream *strm, lzma_index *i) * \brief Initialize .xz Index decoder * * \param strm Pointer to properly prepared lzma_stream - * \param i Pointer to a pointer that will be made to point - * to the final decoded Index once lzma_code() has - * returned LZMA_STREAM_END. That is, - * lzma_index_decoder() always takes care of - * allocating a new lzma_index structure, and *i - * doesn't need to be initialized by the caller. + * \param i The decoded Index will be made available via + * this pointer. Initially this function will + * set *i to NULL (the old value is ignored). If + * decoding succeeds (lzma_code() returns + * LZMA_STREAM_END), *i will be set to point + * to the decoded Index, which the application + * has to later free with lzma_index_end(). * \param memlimit How much memory the resulting Index is allowed * to require. * @@ -373,11 +374,11 @@ extern LZMA_API(lzma_ret) lzma_index_buffer_encode(lzma_index *i, /** * \brief Single-call .xz Index decoder * - * \param i Pointer to a pointer that will be made to point - * to the final decoded Index if decoding is - * successful. That is, lzma_index_buffer_decode() - * always takes care of allocating a new - * lzma_index structure, and *i doesn't need to be + * \param i If decoding succeeds, *i will point to the + * decoded Index, which the application has to + * later free with lzma_index_end(). If an error + * occurs, *i will be NULL. The old value of *i + * is always ignored and thus doesn't need to be * initialized by the caller. * \param memlimit Pointer to how much memory the resulting Index * is allowed to require. The value pointed by |