[PATCH 20/27] sha1_file: add repository argument to map_sha1_file

[Stefan Beller]

Add a repository argument to allow map_sha1_file callers to be more
specific about which repository to handle. This is a small mechanical
change; it doesn't change the implementation to handle repositories
other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

While at it, move the declaration to object-store.h, where it should
be easier to find.

Signed-off-by: Stefan Beller <sbel...@google.com>
Signed-off-by: Jonathan Nieder <jrnie...@gmail.com>
---
 cache.h        | 1 -
 object-store.h | 3 +++
 sha1_file.c    | 4 ++--
 streaming.c    | 5 ++++-
 4 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/cache.h b/cache.h
index e641c23b0a..d338b65d75 100644
--- a/cache.h
+++ b/cache.h
@@ -1242,7 +1242,6 @@ extern int pretend_sha1_file(void *, unsigned long, enum 
object_type, unsigned c
 extern int force_object_loose(const unsigned char *sha1, time_t mtime);
 extern int git_open_cloexec(const char *name, int flags);
 #define git_open(name) git_open_cloexec(name, O_RDONLY)
-extern void *map_sha1_file(const unsigned char *sha1, unsigned long *size);
 extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, 
unsigned long mapsize, void *buffer, unsigned long bufsiz);
 extern int parse_sha1_header(const char *hdr, unsigned long *sizep);
 
diff --git a/object-store.h b/object-store.h
index 4f5060e768..a37d74a0c5 100644
--- a/object-store.h
+++ b/object-store.h
@@ -130,4 +130,7 @@ void raw_object_store_clear(struct raw_object_store *o);
 #define sha1_file_name(r, b, s) sha1_file_name_##r(b, s)
 void sha1_file_name_the_repository(struct strbuf *buf, const unsigned char 
*sha1);
 
+#define map_sha1_file(r, s, sz) map_sha1_file_##r(s, sz)
+void *map_sha1_file_the_repository(const unsigned char *sha1, unsigned long 
*size);
+
 #endif /* OBJECT_STORE_H */
diff --git a/sha1_file.c b/sha1_file.c
index 7fa9ed2f25..0d3ff99cf2 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -968,7 +968,7 @@ static void *map_sha1_file_1_the_repository(const char 
*path,
        return map;
 }
 
-void *map_sha1_file(const unsigned char *sha1, unsigned long *size)
+void *map_sha1_file_the_repository(const unsigned char *sha1, unsigned long 
*size)
 {
        return map_sha1_file_1(the_repository, NULL, sha1, size);
 }
@@ -1192,7 +1192,7 @@ static int sha1_loose_object_info(const unsigned char 
*sha1,
                return 0;
        }
 
-       map = map_sha1_file(sha1, &mapsize);
+       map = map_sha1_file(the_repository, sha1, &mapsize);
        if (!map)
                return -1;
 
diff --git a/streaming.c b/streaming.c
index 5892b50bd8..22d27df55e 100644
--- a/streaming.c
+++ b/streaming.c
@@ -3,6 +3,8 @@
  */
 #include "cache.h"
 #include "streaming.h"
+#include "repository.h"
+#include "object-store.h"
 #include "packfile.h"
 
 enum input_source {
@@ -335,7 +337,8 @@ static struct stream_vtbl loose_vtbl = {
 
 static open_method_decl(loose)
 {
-       st->u.loose.mapped = map_sha1_file(sha1, &st->u.loose.mapsize);
+       st->u.loose.mapped = map_sha1_file(the_repository,
+                                          sha1, &st->u.loose.mapsize);
        if (!st->u.loose.mapped)
                return -1;
        if ((unpack_sha1_header(&st->z,
-- 
2.16.1.291.g4437f3f132-goog