On Wed, Feb 26, 2014 at 02:07:47PM +0400, Dmitry S. Dolzhenko wrote:
> Refactor binary search in "commit_graft_pos" function: use
> generic "sha1_pos" function.
Sounds sensible.
A few administrative points for your patch:
- we usually try to send patches inline, rather than as attachments.
It almost looks like your mailer or a server on the path converted
your mail to a multipart/mixed and stuck a useless empty attachment
on the end.
- Your patch did not apply for me, nor to the blobs mentioned in its
header. Did you modify it after it was generated? I think this part
in particular looks suspicious:
> diff --git a/commit.c b/commit.c
> index 6bf4fe0..8edaeb7 100644
> --- a/commit.c
> +++ b/commit.c
> @@ -10,6 +10,7 @@
> #include "mergesort.h"
> #include "commit-slab.h"
> #include "prio-queue.h"
> +#include "sha1-lookup.h"
> static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
There are 3 context lines above, but only one below?
> @@ -114,23 +115,16 @@ static unsigned long parse_commit_date(const char *buf, const char *tail)
> static struct commit_graft **commit_graft;
> static int commit_graft_alloc, commit_graft_nr;
> +static const unsigned char *commit_graft_sha1_access(size_t index, void *table)
> +{
> + struct commit_graft **commit_graft_table = table;
> + return commit_graft_table[index]->sha1;
> +}
> +
And here we have only two context lines, and the first addition line is
indented (making it look like a context line).
> static int commit_graft_pos(const unsigned char *sha1)
> {
> - int lo, hi;
> - lo = 0;
> - hi = commit_graft_nr;
> - while (lo < hi) {
> - int mi = (lo + hi) / 2;
> - struct commit_graft *graft = commit_graft[mi];
> - int cmp = hashcmp(sha1, graft->sha1);
> - if (!cmp)
> - return mi;
> - if (cmp < 0)
> - hi = mi;
> - else
> - lo = mi + 1;
> - }
> - return -lo - 1;
> + return sha1_pos(sha1, commit_graft, commit_graft_nr,
> + commit_graft_sha1_access);
The patch itself looks correct.
-Peff
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