[PATCH v5 3/8] remote-odb: implement remote_odb_get_direct()

[Christian Couder <christian.couder@gmail.com>]

From: Christian Couder <christian.couder@gmail.com>

This is implemented only in the promisor remote mode
for now by calling fetch_objects().

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 odb-helper.c | 15 +++++++++++++++
 odb-helper.h |  3 +++
 remote-odb.c | 17 +++++++++++++++++
 remote-odb.h |  1 +
 4 files changed, 36 insertions(+)

diff --git a/odb-helper.c b/odb-helper.c
index b4d403ffa9..6458fe2e32 100644
--- a/odb-helper.c
+++ b/odb-helper.c
@@ -4,6 +4,7 @@
 #include "odb-helper.h"
 #include "run-command.h"
 #include "sha1-lookup.h"
+#include "fetch-object.h"
 
 struct odb_helper *odb_helper_new(const char *name, int namelen)
 {
@@ -14,3 +15,17 @@ struct odb_helper *odb_helper_new(const char *name, int namelen)
 
 	return o;
 }
+
+int odb_helper_get_direct(struct odb_helper *o,
+			  const struct object_id *oids,
+			  int oid_nr)
+{
+	int res;
+	uint64_t start = getnanotime();
+
+	res = fetch_objects(o->remote, oids, oid_nr);
+
+	trace_performance_since(start, "odb_helper_get_direct");
+
+	return res;
+}
diff --git a/odb-helper.h b/odb-helper.h
index 4b792a3896..950f9f9cd1 100644
--- a/odb-helper.h
+++ b/odb-helper.h
@@ -15,5 +15,8 @@ struct odb_helper {
 };
 
 extern struct odb_helper *odb_helper_new(const char *name, int namelen);
+extern int odb_helper_get_direct(struct odb_helper *o,
+				 const struct object_id *oids,
+				 int oid_nr);
 
 #endif /* ODB_HELPER_H */
diff --git a/remote-odb.c b/remote-odb.c
index 03be54ba2e..53900203ae 100644
--- a/remote-odb.c
+++ b/remote-odb.c
@@ -89,3 +89,20 @@ int has_remote_odb(void)
 {
 	return !!find_odb_helper(NULL);
 }
+
+int remote_odb_get_direct(const struct object_id *oids, int oid_nr)
+{
+	struct odb_helper *o;
+
+	trace_printf("trace: remote_odb_get_direct: nr: %d", oid_nr);
+
+	remote_odb_init();
+
+	for (o = helpers; o; o = o->next) {
+		if (odb_helper_get_direct(o, oids, oid_nr) < 0)
+			continue;
+		return 0;
+	}
+
+	return -1;
+}
diff --git a/remote-odb.h b/remote-odb.h
index 4c7b13695f..221305d1b6 100644
--- a/remote-odb.h
+++ b/remote-odb.h
@@ -3,5 +3,6 @@
 
 extern struct odb_helper *find_odb_helper(const char *remote);
 extern int has_remote_odb(void);
+extern int remote_odb_get_direct(const struct object_id *oids, int oid_nr);
 
 #endif /* REMOTE_ODB_H */
-- 
2.19.0.278.gca5b891cac