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Re: [PATCH 01/40] Add initial external odb support

On 1/3/2018 11:33 AM, Christian Couder wrote:
The external-odb.{c,h} files will contain the functions
that are called by the rest of Git mostly from
"sha1_file.c" to access the objects managed by the
external odbs.

The odb-helper.{c,h} files will contain the functions to
actually implement communication with either the internal
functions or the external scripts or processes that will
manage and provide external git objects.

For now only infrastructure to create helpers from the
config and to manage a cache for the 'have' command is

Helped-by: Jeff King <peff@xxxxxxxx>
Signed-off-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
diff --git a/odb-helper.h b/odb-helper.h
new file mode 100644
index 0000000000..9395e606ce
--- /dev/null
+++ b/odb-helper.h
@@ -0,0 +1,24 @@
+#ifndef ODB_HELPER_H
+#define ODB_HELPER_H
+struct odb_helper {
+	const char *name;
+	const char *dealer;
+	struct odb_helper_object {
+		unsigned char sha1[20];

Should this be "struct object_id" ?

+		unsigned long size;
+		enum object_type type;
+	} *have;
+	int have_nr;
+	int have_alloc;
+	int have_valid;
+	struct odb_helper *next;
+extern struct odb_helper *odb_helper_new(const char *name, int namelen);
+extern int odb_helper_has_object(struct odb_helper *o,
+				 const unsigned char *sha1);
+#endif /* ODB_HELPER_H */