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Micro-optimise sliding_get_sb_range.

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Con Kolivas 2013-03-18 23:58:10 +11:00
parent 2df8968e75
commit 87fe625829
1 changed files with 3 additions and 4 deletions
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7
rzip.c
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@ -192,17 +192,16 @@ static uchar *single_get_sb(__maybe_unused rzip_control *control, i64 p)
/* The length of continous range of the sliding buffer,
* starting from the offset P.
*/
static i64 sliding_get_sb_range(rzip_control *control, i64 p)
static inline i64 sliding_get_sb_range(rzip_control *control, i64 p)
{
struct sliding_buffer *sb = &control->sb;
if (p >= sb->offset_low && p < sb->offset_low + sb->size_low)
return (sb->size_low - (p - sb->offset_low));
if (p >= sb->offset_high && p < (sb->offset_high + sb->size_high))
if (likely(p >= sb->offset_high && p < (sb->offset_high + sb->size_high)))
return (sb->size_high - (p - sb->offset_high));
fatal("sliding_get_sb_range: the pointer is out of range\n");
return 0;
fatal_return(("sliding_get_sb_range: the pointer is out of range\n"), 0);
}
/* Since the sliding get_sb only allows us to access one byte at a time, we