ckolivas/lrzip
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Institute writing and reading of 0.6 file format for compress/decompress.

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This commit is contained in:
Con Kolivas 2011-03-12 11:17:11 +11:00
parent d87df4f44e
commit fe68b9a3f7
3 changed files with 33 additions and 10 deletions
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23
stream.c
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@ -818,7 +818,7 @@ void *open_stream_out(rzip_control *control, int f, unsigned int n, i64 chunk_li
if (unlikely(!sinfo))
return NULL;
sinfo->bufsize = limit = chunk_limit;
sinfo->bufsize = sinfo->size = limit = chunk_limit;
sinfo->chunk_bytes = cbytes;
sinfo->num_streams = n;
@ -917,7 +917,6 @@ void *open_stream_in(rzip_control *control, int f, int n)
sinfo->num_streams = n;
sinfo->fd = f;
sinfo->initial_pos = lseek(f, 0, SEEK_CUR);
sinfo->s = calloc(sizeof(struct stream), n);
if (unlikely(!sinfo->s)) {
@ -928,6 +927,21 @@ void *open_stream_in(rzip_control *control, int f, int n)
sinfo->s[0].total_threads = 1;
sinfo->s[1].total_threads = total_threads - 1;
if (control->major_version == 0 && control->minor_version > 5) {
/* Read in flag that tells us if there are more chunks after
* this */
if (unlikely(read_u8(f, &control->eof))) {
print_err("Failed to read eof flag in open_stream_in\n");
goto failed;
}
/* Read in the expected chunk size */
if (unlikely(read_i64(f, &sinfo->size))) {
print_err("Failed to read in chunk size in open_stream_in\n");
goto failed;
}
}
sinfo->initial_pos = lseek(f, 0, SEEK_CUR);
for (i = 0; i < n; i++) {
uchar c;
i64 v1, v2;
@ -1060,6 +1074,11 @@ retry:
/* Write chunk bytes of this block */
write_u8(ctis->fd, ctis->chunk_bytes);
/* Write whether this is the last chunk, followed by the size
* of this chunk */
write_u8(ctis->fd, control->eof);
write_i64(ctis->fd, ctis->size);
/* First chunk of this stream, write headers */
ctis->initial_pos = lseek(ctis->fd, 0, SEEK_CUR);