search for: lzma_index

...linux/falloc.h> #include <lzma.h> #define DEBUG 0 @@ -145,10 +146,11 @@ usage (int exitcode) static void xzfile_uncompress (const char *filename, const char *outputfile, unsigned nr_threads) { int fd, ofd; + off_t hole_start, data_start; uint64_t size; lzma_index *idx; /* Open the file. */ fd = open (filename, O_RDONLY); @@ -176,10 +178,29 @@ xzfile_uncompress (const char *filename, const char *outputfile, posix_fadvise (fd, 0, 0, POSIX_FADV_RANDOM|POSIX_FADV_DONTNEED); /* Iterate over blocks. */ iter_blocks (idx, nr_threads, filename, fd,...

v2: - Fixes a number of bugs in corner cases. - Uses a 1M block size to fetch from the underlying plugin. This improves performance considerably. I also tested this much more thoroughly and can't find any more bugs. Rich.

Matt asked if xz should really be a filter rather than a plugin. The answer is yes, of course it should be! That's been something in the todo file for a while. The commit converts the xz plugin code into a filter (leaving the plugin around, but deprecating it). plugin: nbdkit xz file.xz filter: nbdkit --filter=xz file file.xz plugin: # can't be done filter: nbdkit

Various changes/fixes to use smaller stack frames. Rich.

...; - uint8_t header[LZMA_STREAM_HEADER_SIZE]; + CLEANUP_FREE uint8_t *footer = NULL; + CLEANUP_FREE uint8_t *header = NULL; lzma_stream_flags footer_flags; lzma_stream_flags header_flags; lzma_stream strm = LZMA_STREAM_INIT; @@ -260,6 +260,13 @@ parse_indexes (value filenamev, int fd) lzma_index *this_index = NULL; lzma_vli stream_padding = 0; size_t nr_streams = 0; + CLEANUP_FREE uint8_t *buf = NULL; + + footer = malloc (sizeof (uint8_t) * LZMA_STREAM_HEADER_SIZE); + header = malloc (sizeof (uint8_t) * LZMA_STREAM_HEADER_SIZE); + buf = malloc (sizeof (uint8_t) * BUFSIZ); + if (...