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-rw-r--r--object-file.c185
1 files changed, 100 insertions, 85 deletions
diff --git a/object-file.c b/object-file.c
index aeca61b8ae..726e41a047 100644
--- a/object-file.c
+++ b/object-file.c
@@ -86,84 +86,90 @@ static const struct object_id null_oid_sha256 = {
.algo = GIT_HASH_SHA256,
};
-static void git_hash_sha1_init(git_hash_ctx *ctx)
+static void git_hash_sha1_init(struct git_hash_ctx *ctx)
{
- git_SHA1_Init(&ctx->sha1);
+ ctx->algop = &hash_algos[GIT_HASH_SHA1];
+ git_SHA1_Init(&ctx->state.sha1);
}
-static void git_hash_sha1_clone(git_hash_ctx *dst, const git_hash_ctx *src)
+static void git_hash_sha1_clone(struct git_hash_ctx *dst, const struct git_hash_ctx *src)
{
- git_SHA1_Clone(&dst->sha1, &src->sha1);
+ dst->algop = src->algop;
+ git_SHA1_Clone(&dst->state.sha1, &src->state.sha1);
}
-static void git_hash_sha1_update(git_hash_ctx *ctx, const void *data, size_t len)
+static void git_hash_sha1_update(struct git_hash_ctx *ctx, const void *data, size_t len)
{
- git_SHA1_Update(&ctx->sha1, data, len);
+ git_SHA1_Update(&ctx->state.sha1, data, len);
}
-static void git_hash_sha1_final(unsigned char *hash, git_hash_ctx *ctx)
+static void git_hash_sha1_final(unsigned char *hash, struct git_hash_ctx *ctx)
{
- git_SHA1_Final(hash, &ctx->sha1);
+ git_SHA1_Final(hash, &ctx->state.sha1);
}
-static void git_hash_sha1_final_oid(struct object_id *oid, git_hash_ctx *ctx)
+static void git_hash_sha1_final_oid(struct object_id *oid, struct git_hash_ctx *ctx)
{
- git_SHA1_Final(oid->hash, &ctx->sha1);
+ git_SHA1_Final(oid->hash, &ctx->state.sha1);
memset(oid->hash + GIT_SHA1_RAWSZ, 0, GIT_MAX_RAWSZ - GIT_SHA1_RAWSZ);
oid->algo = GIT_HASH_SHA1;
}
-static void git_hash_sha1_init_unsafe(git_hash_ctx *ctx)
+static void git_hash_sha1_init_unsafe(struct git_hash_ctx *ctx)
{
- git_SHA1_Init_unsafe(&ctx->sha1_unsafe);
+ ctx->algop = unsafe_hash_algo(&hash_algos[GIT_HASH_SHA1]);
+ git_SHA1_Init_unsafe(&ctx->state.sha1_unsafe);
}
-static void git_hash_sha1_clone_unsafe(git_hash_ctx *dst, const git_hash_ctx *src)
+static void git_hash_sha1_clone_unsafe(struct git_hash_ctx *dst, const struct git_hash_ctx *src)
{
- git_SHA1_Clone_unsafe(&dst->sha1_unsafe, &src->sha1_unsafe);
+ dst->algop = src->algop;
+ git_SHA1_Clone_unsafe(&dst->state.sha1_unsafe, &src->state.sha1_unsafe);
}
-static void git_hash_sha1_update_unsafe(git_hash_ctx *ctx, const void *data,
+static void git_hash_sha1_update_unsafe(struct git_hash_ctx *ctx, const void *data,
size_t len)
{
- git_SHA1_Update_unsafe(&ctx->sha1_unsafe, data, len);
+ git_SHA1_Update_unsafe(&ctx->state.sha1_unsafe, data, len);
}
-static void git_hash_sha1_final_unsafe(unsigned char *hash, git_hash_ctx *ctx)
+static void git_hash_sha1_final_unsafe(unsigned char *hash, struct git_hash_ctx *ctx)
{
- git_SHA1_Final_unsafe(hash, &ctx->sha1_unsafe);
+ git_SHA1_Final_unsafe(hash, &ctx->state.sha1_unsafe);
}
-static void git_hash_sha1_final_oid_unsafe(struct object_id *oid, git_hash_ctx *ctx)
+static void git_hash_sha1_final_oid_unsafe(struct object_id *oid, struct git_hash_ctx *ctx)
{
- git_SHA1_Final_unsafe(oid->hash, &ctx->sha1_unsafe);
+ git_SHA1_Final_unsafe(oid->hash, &ctx->state.sha1_unsafe);
memset(oid->hash + GIT_SHA1_RAWSZ, 0, GIT_MAX_RAWSZ - GIT_SHA1_RAWSZ);
oid->algo = GIT_HASH_SHA1;
}
-static void git_hash_sha256_init(git_hash_ctx *ctx)
+static void git_hash_sha256_init(struct git_hash_ctx *ctx)
{
- git_SHA256_Init(&ctx->sha256);
+ ctx->algop = unsafe_hash_algo(&hash_algos[GIT_HASH_SHA256]);
+ git_SHA256_Init(&ctx->state.sha256);
}
-static void git_hash_sha256_clone(git_hash_ctx *dst, const git_hash_ctx *src)
+static void git_hash_sha256_clone(struct git_hash_ctx *dst, const struct git_hash_ctx *src)
{
- git_SHA256_Clone(&dst->sha256, &src->sha256);
+ dst->algop = src->algop;
+ git_SHA256_Clone(&dst->state.sha256, &src->state.sha256);
}
-static void git_hash_sha256_update(git_hash_ctx *ctx, const void *data, size_t len)
+static void git_hash_sha256_update(struct git_hash_ctx *ctx, const void *data, size_t len)
{
- git_SHA256_Update(&ctx->sha256, data, len);
+ git_SHA256_Update(&ctx->state.sha256, data, len);
}
-static void git_hash_sha256_final(unsigned char *hash, git_hash_ctx *ctx)
+static void git_hash_sha256_final(unsigned char *hash, struct git_hash_ctx *ctx)
{
- git_SHA256_Final(hash, &ctx->sha256);
+ git_SHA256_Final(hash, &ctx->state.sha256);
}
-static void git_hash_sha256_final_oid(struct object_id *oid, git_hash_ctx *ctx)
+static void git_hash_sha256_final_oid(struct object_id *oid, struct git_hash_ctx *ctx)
{
- git_SHA256_Final(oid->hash, &ctx->sha256);
+ git_SHA256_Final(oid->hash, &ctx->state.sha256);
/*
* This currently does nothing, so the compiler should optimize it out,
* but keep it in case we extend the hash size again.
@@ -172,18 +178,18 @@ static void git_hash_sha256_final_oid(struct object_id *oid, git_hash_ctx *ctx)
oid->algo = GIT_HASH_SHA256;
}
-static void git_hash_unknown_init(git_hash_ctx *ctx UNUSED)
+static void git_hash_unknown_init(struct git_hash_ctx *ctx UNUSED)
{
BUG("trying to init unknown hash");
}
-static void git_hash_unknown_clone(git_hash_ctx *dst UNUSED,
- const git_hash_ctx *src UNUSED)
+static void git_hash_unknown_clone(struct git_hash_ctx *dst UNUSED,
+ const struct git_hash_ctx *src UNUSED)
{
BUG("trying to clone unknown hash");
}
-static void git_hash_unknown_update(git_hash_ctx *ctx UNUSED,
+static void git_hash_unknown_update(struct git_hash_ctx *ctx UNUSED,
const void *data UNUSED,
size_t len UNUSED)
{
@@ -191,17 +197,33 @@ static void git_hash_unknown_update(git_hash_ctx *ctx UNUSED,
}
static void git_hash_unknown_final(unsigned char *hash UNUSED,
- git_hash_ctx *ctx UNUSED)
+ struct git_hash_ctx *ctx UNUSED)
{
BUG("trying to finalize unknown hash");
}
static void git_hash_unknown_final_oid(struct object_id *oid UNUSED,
- git_hash_ctx *ctx UNUSED)
+ struct git_hash_ctx *ctx UNUSED)
{
BUG("trying to finalize unknown hash");
}
+static const struct git_hash_algo sha1_unsafe_algo = {
+ .name = "sha1",
+ .format_id = GIT_SHA1_FORMAT_ID,
+ .rawsz = GIT_SHA1_RAWSZ,
+ .hexsz = GIT_SHA1_HEXSZ,
+ .blksz = GIT_SHA1_BLKSZ,
+ .init_fn = git_hash_sha1_init_unsafe,
+ .clone_fn = git_hash_sha1_clone_unsafe,
+ .update_fn = git_hash_sha1_update_unsafe,
+ .final_fn = git_hash_sha1_final_unsafe,
+ .final_oid_fn = git_hash_sha1_final_oid_unsafe,
+ .empty_tree = &empty_tree_oid,
+ .empty_blob = &empty_blob_oid,
+ .null_oid = &null_oid_sha1,
+};
+
const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
{
.name = NULL,
@@ -214,11 +236,6 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
.update_fn = git_hash_unknown_update,
.final_fn = git_hash_unknown_final,
.final_oid_fn = git_hash_unknown_final_oid,
- .unsafe_init_fn = git_hash_unknown_init,
- .unsafe_clone_fn = git_hash_unknown_clone,
- .unsafe_update_fn = git_hash_unknown_update,
- .unsafe_final_fn = git_hash_unknown_final,
- .unsafe_final_oid_fn = git_hash_unknown_final_oid,
.empty_tree = NULL,
.empty_blob = NULL,
.null_oid = NULL,
@@ -234,11 +251,7 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
.update_fn = git_hash_sha1_update,
.final_fn = git_hash_sha1_final,
.final_oid_fn = git_hash_sha1_final_oid,
- .unsafe_init_fn = git_hash_sha1_init_unsafe,
- .unsafe_clone_fn = git_hash_sha1_clone_unsafe,
- .unsafe_update_fn = git_hash_sha1_update_unsafe,
- .unsafe_final_fn = git_hash_sha1_final_unsafe,
- .unsafe_final_oid_fn = git_hash_sha1_final_oid_unsafe,
+ .unsafe = &sha1_unsafe_algo,
.empty_tree = &empty_tree_oid,
.empty_blob = &empty_blob_oid,
.null_oid = &null_oid_sha1,
@@ -254,11 +267,6 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
.update_fn = git_hash_sha256_update,
.final_fn = git_hash_sha256_final,
.final_oid_fn = git_hash_sha256_final_oid,
- .unsafe_init_fn = git_hash_sha256_init,
- .unsafe_clone_fn = git_hash_sha256_clone,
- .unsafe_update_fn = git_hash_sha256_update,
- .unsafe_final_fn = git_hash_sha256_final,
- .unsafe_final_oid_fn = git_hash_sha256_final_oid,
.empty_tree = &empty_tree_oid_sha256,
.empty_blob = &empty_blob_oid_sha256,
.null_oid = &null_oid_sha256,
@@ -305,6 +313,15 @@ int hash_algo_by_length(int len)
return GIT_HASH_UNKNOWN;
}
+const struct git_hash_algo *unsafe_hash_algo(const struct git_hash_algo *algop)
+{
+ /* If we have a faster "unsafe" implementation, use that. */
+ if (algop->unsafe)
+ return algop->unsafe;
+ /* Otherwise use the default one. */
+ return algop;
+}
+
/*
* This is meant to hold a *small* number of objects that you would
* want repo_read_object_file() to be able to return, but yet you do not want
@@ -377,7 +394,7 @@ int mkdir_in_gitdir(const char *path)
}
strbuf_release(&sb);
}
- return adjust_shared_perm(path);
+ return adjust_shared_perm(the_repository, path);
}
static enum scld_error safe_create_leading_directories_1(char *path, int share)
@@ -426,7 +443,7 @@ static enum scld_error safe_create_leading_directories_1(char *path, int share)
ret = SCLD_VANISHED;
else
ret = SCLD_FAILED;
- } else if (share && adjust_shared_perm(path)) {
+ } else if (share && adjust_shared_perm(the_repository, path)) {
ret = SCLD_PERMS;
}
*slash = slash_character;
@@ -465,14 +482,14 @@ int odb_mkstemp(struct strbuf *temp_filename, const char *pattern)
* restrictive except to remove write permission.
*/
int mode = 0444;
- git_path_buf(temp_filename, "objects/%s", pattern);
+ repo_git_path_replace(the_repository, temp_filename, "objects/%s", pattern);
fd = git_mkstemp_mode(temp_filename->buf, mode);
if (0 <= fd)
return fd;
/* slow path */
/* some mkstemp implementations erase temp_filename on failure */
- git_path_buf(temp_filename, "objects/%s", pattern);
+ repo_git_path_replace(the_repository, temp_filename, "objects/%s", pattern);
safe_create_leading_directories(temp_filename->buf);
return xmkstemp_mode(temp_filename->buf, mode);
}
@@ -706,7 +723,7 @@ static void read_info_alternates(struct repository *r,
void add_to_alternates_file(const char *reference)
{
struct lock_file lock = LOCK_INIT;
- char *alts = git_pathdup("objects/info/alternates");
+ char *alts = repo_git_path(the_repository, "objects/info/alternates");
FILE *in, *out;
int found = 0;
@@ -1169,7 +1186,7 @@ int stream_object_signature(struct repository *r, const struct object_id *oid)
unsigned long size;
enum object_type obj_type;
struct git_istream *st;
- git_hash_ctx c;
+ struct git_hash_ctx c;
char hdr[MAX_HEADER_LEN];
int hdrlen;
@@ -1182,7 +1199,7 @@ int stream_object_signature(struct repository *r, const struct object_id *oid)
/* Sha1.. */
r->hash_algo->init_fn(&c);
- r->hash_algo->update_fn(&c, hdr, hdrlen);
+ git_hash_update(&c, hdr, hdrlen);
for (;;) {
char buf[1024 * 16];
ssize_t readlen = read_istream(st, buf, sizeof(buf));
@@ -1193,9 +1210,9 @@ int stream_object_signature(struct repository *r, const struct object_id *oid)
}
if (!readlen)
break;
- r->hash_algo->update_fn(&c, buf, readlen);
+ git_hash_update(&c, buf, readlen);
}
- r->hash_algo->final_oid_fn(&real_oid, &c);
+ git_hash_final_oid(&real_oid, &c);
close_istream(st);
return !oideq(oid, &real_oid) ? -1 : 0;
}
@@ -1934,15 +1951,15 @@ void *read_object_with_reference(struct repository *r,
}
}
-static void hash_object_body(const struct git_hash_algo *algo, git_hash_ctx *c,
+static void hash_object_body(const struct git_hash_algo *algo, struct git_hash_ctx *c,
const void *buf, unsigned long len,
struct object_id *oid,
char *hdr, int *hdrlen)
{
algo->init_fn(c);
- algo->update_fn(c, hdr, *hdrlen);
- algo->update_fn(c, buf, len);
- algo->final_oid_fn(oid, c);
+ git_hash_update(c, hdr, *hdrlen);
+ git_hash_update(c, buf, len);
+ git_hash_final_oid(oid, c);
}
static void write_object_file_prepare(const struct git_hash_algo *algo,
@@ -1950,7 +1967,7 @@ static void write_object_file_prepare(const struct git_hash_algo *algo,
enum object_type type, struct object_id *oid,
char *hdr, int *hdrlen)
{
- git_hash_ctx c;
+ struct git_hash_ctx c;
/* Generate the header */
*hdrlen = format_object_header(hdr, *hdrlen, type, len);
@@ -1964,7 +1981,7 @@ static void write_object_file_prepare_literally(const struct git_hash_algo *algo
const char *type, struct object_id *oid,
char *hdr, int *hdrlen)
{
- git_hash_ctx c;
+ struct git_hash_ctx c;
*hdrlen = format_object_header_literally(hdr, *hdrlen, type, len);
hash_object_body(algo, &c, buf, len, oid, hdr, hdrlen);
@@ -2094,7 +2111,7 @@ retry:
}
out:
- if (adjust_shared_perm(filename))
+ if (adjust_shared_perm(the_repository, filename))
return error(_("unable to set permission to '%s'"), filename);
return 0;
}
@@ -2170,7 +2187,7 @@ static int create_tmpfile(struct strbuf *tmp, const char *filename)
strbuf_add(tmp, filename, dirlen - 1);
if (mkdir(tmp->buf, 0777) && errno != EEXIST)
return -1;
- if (adjust_shared_perm(tmp->buf))
+ if (adjust_shared_perm(the_repository, tmp->buf))
return -1;
/* Try again */
@@ -2195,7 +2212,7 @@ static int start_loose_object_common(struct strbuf *tmp_file,
const char *filename, unsigned flags,
git_zstream *stream,
unsigned char *buf, size_t buflen,
- git_hash_ctx *c, git_hash_ctx *compat_c,
+ struct git_hash_ctx *c, struct git_hash_ctx *compat_c,
char *hdr, int hdrlen)
{
struct repository *repo = the_repository;
@@ -2229,9 +2246,9 @@ static int start_loose_object_common(struct strbuf *tmp_file,
stream->avail_in = hdrlen;
while (git_deflate(stream, 0) == Z_OK)
; /* nothing */
- algo->update_fn(c, hdr, hdrlen);
+ git_hash_update(c, hdr, hdrlen);
if (compat && compat_c)
- compat->update_fn(compat_c, hdr, hdrlen);
+ git_hash_update(compat_c, hdr, hdrlen);
return fd;
}
@@ -2240,21 +2257,20 @@ static int start_loose_object_common(struct strbuf *tmp_file,
* Common steps for the inner git_deflate() loop for writing loose
* objects. Returns what git_deflate() returns.
*/
-static int write_loose_object_common(git_hash_ctx *c, git_hash_ctx *compat_c,
+static int write_loose_object_common(struct git_hash_ctx *c, struct git_hash_ctx *compat_c,
git_zstream *stream, const int flush,
unsigned char *in0, const int fd,
unsigned char *compressed,
const size_t compressed_len)
{
struct repository *repo = the_repository;
- const struct git_hash_algo *algo = repo->hash_algo;
const struct git_hash_algo *compat = repo->compat_hash_algo;
int ret;
ret = git_deflate(stream, flush ? Z_FINISH : 0);
- algo->update_fn(c, in0, stream->next_in - in0);
+ git_hash_update(c, in0, stream->next_in - in0);
if (compat && compat_c)
- compat->update_fn(compat_c, in0, stream->next_in - in0);
+ git_hash_update(compat_c, in0, stream->next_in - in0);
if (write_in_full(fd, compressed, stream->next_out - compressed) < 0)
die_errno(_("unable to write loose object file"));
stream->next_out = compressed;
@@ -2269,21 +2285,20 @@ static int write_loose_object_common(git_hash_ctx *c, git_hash_ctx *compat_c,
* - End the compression of zlib stream.
* - Get the calculated oid to "oid".
*/
-static int end_loose_object_common(git_hash_ctx *c, git_hash_ctx *compat_c,
+static int end_loose_object_common(struct git_hash_ctx *c, struct git_hash_ctx *compat_c,
git_zstream *stream, struct object_id *oid,
struct object_id *compat_oid)
{
struct repository *repo = the_repository;
- const struct git_hash_algo *algo = repo->hash_algo;
const struct git_hash_algo *compat = repo->compat_hash_algo;
int ret;
ret = git_deflate_end_gently(stream);
if (ret != Z_OK)
return ret;
- algo->final_oid_fn(oid, c);
+ git_hash_final_oid(oid, c);
if (compat && compat_c)
- compat->final_oid_fn(compat_oid, compat_c);
+ git_hash_final_oid(compat_oid, compat_c);
return Z_OK;
}
@@ -2295,7 +2310,7 @@ static int write_loose_object(const struct object_id *oid, char *hdr,
int fd, ret;
unsigned char compressed[4096];
git_zstream stream;
- git_hash_ctx c;
+ struct git_hash_ctx c;
struct object_id parano_oid;
static struct strbuf tmp_file = STRBUF_INIT;
static struct strbuf filename = STRBUF_INIT;
@@ -2375,7 +2390,7 @@ int stream_loose_object(struct input_stream *in_stream, size_t len,
int fd, ret, err = 0, flush = 0;
unsigned char compressed[4096];
git_zstream stream;
- git_hash_ctx c, compat_c;
+ struct git_hash_ctx c, compat_c;
struct strbuf tmp_file = STRBUF_INIT;
struct strbuf filename = STRBUF_INIT;
int dirlen;
@@ -3035,14 +3050,14 @@ static int check_stream_oid(git_zstream *stream,
const char *path,
const struct object_id *expected_oid)
{
- git_hash_ctx c;
+ struct git_hash_ctx c;
struct object_id real_oid;
unsigned char buf[4096];
unsigned long total_read;
int status = Z_OK;
the_hash_algo->init_fn(&c);
- the_hash_algo->update_fn(&c, hdr, stream->total_out);
+ git_hash_update(&c, hdr, stream->total_out);
/*
* We already read some bytes into hdr, but the ones up to the NUL
@@ -3062,7 +3077,7 @@ static int check_stream_oid(git_zstream *stream,
if (size - total_read < stream->avail_out)
stream->avail_out = size - total_read;
status = git_inflate(stream, Z_FINISH);
- the_hash_algo->update_fn(&c, buf, stream->next_out - buf);
+ git_hash_update(&c, buf, stream->next_out - buf);
total_read += stream->next_out - buf;
}
git_inflate_end(stream);
@@ -3077,7 +3092,7 @@ static int check_stream_oid(git_zstream *stream,
return -1;
}
- the_hash_algo->final_oid_fn(&real_oid, &c);
+ git_hash_final_oid(&real_oid, &c);
if (!oideq(expected_oid, &real_oid)) {
error(_("hash mismatch for %s (expected %s)"), path,
oid_to_hex(expected_oid));
generated by cgit v1.2.3 (git 2.46.0) at 2025-11-25 06:14:37 +0000