From: Volker Lendecke <vl@samba.org>
Date: Tue, 24 Mar 2020 08:54:26 +0000 (+0100)
Subject: lib: Add g_lock_dump_send/recv
X-Git-Tag: ldb-2.2.0~489
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3bf576bb2a8eaf1ede44b6327e2eb9272b73c5f9;p=thirdparty%2Fsamba.git

lib: Add g_lock_dump_send/recv

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
---

diff --git a/source3/include/g_lock.h b/source3/include/g_lock.h
index e35ba4b2d31..5892f10fcd6 100644
--- a/source3/include/g_lock.h
+++ b/source3/include/g_lock.h
@@ -62,6 +62,19 @@ NTSTATUS g_lock_write_data(struct g_lock_ctx *ctx, TDB_DATA key,
 int g_lock_locks(struct g_lock_ctx *ctx,
 		 int (*fn)(TDB_DATA key, void *private_data),
 		 void *private_data);
+struct tevent_req *g_lock_dump_send(
+	TALLOC_CTX *mem_ctx,
+	struct tevent_context *ev,
+	struct g_lock_ctx *ctx,
+	TDB_DATA key,
+	void (*fn)(struct server_id exclusive,
+		   size_t num_shared,
+		   struct server_id *shared,
+		   const uint8_t *data,
+		   size_t datalen,
+		   void *private_data),
+	void *private_data);
+NTSTATUS g_lock_dump_recv(struct tevent_req *req);
 NTSTATUS g_lock_dump(struct g_lock_ctx *ctx,
 		     TDB_DATA key,
 		     void (*fn)(struct server_id exclusive,
diff --git a/source3/lib/g_lock.c b/source3/lib/g_lock.c
index 65dc3e76f26..d9843359dd1 100644
--- a/source3/lib/g_lock.c
+++ b/source3/lib/g_lock.c
@@ -1057,6 +1057,7 @@ struct g_lock_dump_state {
 		   void *private_data);
 	void *private_data;
 	NTSTATUS status;
+	enum dbwrap_req_state req_state;
 };
 
 static void g_lock_dump_fn(TDB_DATA key, TDB_DATA data,
@@ -1131,6 +1132,70 @@ NTSTATUS g_lock_dump(struct g_lock_ctx *ctx, TDB_DATA key,
 	return NT_STATUS_OK;
 }
 
+static void g_lock_dump_done(struct tevent_req *subreq);
+
+struct tevent_req *g_lock_dump_send(
+	TALLOC_CTX *mem_ctx,
+	struct tevent_context *ev,
+	struct g_lock_ctx *ctx,
+	TDB_DATA key,
+	void (*fn)(struct server_id exclusive,
+		   size_t num_shared,
+		   struct server_id *shared,
+		   const uint8_t *data,
+		   size_t datalen,
+		   void *private_data),
+	void *private_data)
+{
+	struct tevent_req *req = NULL, *subreq = NULL;
+	struct g_lock_dump_state *state = NULL;
+
+	req = tevent_req_create(mem_ctx, &state, struct g_lock_dump_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->mem_ctx = state;
+	state->key = key;
+	state->fn = fn;
+	state->private_data = private_data;
+
+	subreq = dbwrap_parse_record_send(
+		state,
+		ev,
+		ctx->db,
+		key,
+		g_lock_dump_fn,
+		state,
+		&state->req_state);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, g_lock_dump_done, req);
+	return req;
+}
+
+static void g_lock_dump_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct g_lock_dump_state *state = tevent_req_data(
+		req, struct g_lock_dump_state);
+	NTSTATUS status;
+
+	status = dbwrap_parse_record_recv(subreq);
+	TALLOC_FREE(subreq);
+	if (tevent_req_nterror(req, status) ||
+	    tevent_req_nterror(req, state->status)) {
+		return;
+	}
+	tevent_req_done(req);
+}
+
+NTSTATUS g_lock_dump_recv(struct tevent_req *req)
+{
+	return tevent_req_simple_recv_ntstatus(req);
+}
+
 int g_lock_seqnum(struct g_lock_ctx *ctx)
 {
 	return dbwrap_get_seqnum(ctx->db);