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Move zpaq compression to new libzpaq library back end.

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This commit is contained in:
Con Kolivas 2012-03-16 14:04:16 +11:00
parent 73df7ebcd3
commit f8d05b9a66
3 changed files with 62 additions and 0 deletions
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30
stream.c
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@ -239,6 +239,35 @@ static inline int fake_open_memstream_update_buffer(FILE *fp, uchar **buf, size_
length in c_len
*/
static int zpaq_compress_buf(rzip_control *control, struct compress_thread *cthread, long thread)
{
i64 c_len = 0;
uchar *c_buf;
c_buf = malloc(cthread->s_len + control->page_size);
if (!c_buf) {
print_err("Unable to allocate c_buf in zpaq_compress_buf\n");
return -1;
}
zpaq_compress(c_buf, &c_len, cthread->s_buf, cthread->s_len, control->compression_level / 4 + 1);
if (unlikely(c_len >= cthread->c_len)) {
print_maxverbose("Incompressible block\n");
/* Incompressible, leave as CTYPE_NONE */
free(c_buf);
return 0;
}
cthread->c_len = c_len;
free(cthread->s_buf);
cthread->s_buf = c_buf;
cthread->c_type = CTYPE_ZPAQ;
return 0;
}
#if 0
static int zpaq_compress_buf(rzip_control *control, struct compress_thread *cthread, long thread)
{
uchar *c_buf = NULL;
@ -285,6 +314,7 @@ static int zpaq_compress_buf(rzip_control *control, struct compress_thread *cthr
cthread->c_type = CTYPE_ZPAQ;
return 0;
}
#endif
static int bzip2_compress_buf(rzip_control *control, struct compress_thread *cthread)
{