From: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Date: Sat, 26 Oct 2013 14:44:29 +0000 (-0700)
Subject: Add a mechanism to control what the next XID value on a session will be.
X-Git-Tag: upstream/1.9.6^2~181
X-Git-Url: https://git.piment-noir.org/?p=deb_libnfs.git;a=commitdiff_plain;h=3b943d2f68e28431f3042e954de6e24411a529f9

Add a mechanism to control what the next XID value on a session will be.
This makes it possible for multiple processes/contexts to use the same
target and (with some synchronization) avoid XID collissions across processes/contexts.
---

diff --git a/include/nfsc/libnfs-raw.h b/include/nfsc/libnfs-raw.h
index 9a8a4ce..47a6333 100644
--- a/include/nfsc/libnfs-raw.h
+++ b/include/nfsc/libnfs-raw.h
@@ -53,6 +53,12 @@ struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs);
 */
 struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh);
 
+/* Control what the next XID value to be used on the context will be.
+   This can be used when multiple contexts are used to the same server
+   to avoid that the two contexts have xid collissions.
+ */
+void rpc_set_next_xid(struct rpc_context *rpc, uint32_t xid);
+
 #define RPC_STATUS_SUCCESS	   	0
 #define RPC_STATUS_ERROR		1
 #define RPC_STATUS_CANCEL		2
diff --git a/lib/pdu.c b/lib/pdu.c
index 8de51d2..c2538ef 100644
--- a/lib/pdu.c
+++ b/lib/pdu.c
@@ -113,6 +113,10 @@ void rpc_free_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu)
 	free(pdu);
 }
 
+void rpc_set_next_xid(struct rpc_context *rpc, uint32_t xid)
+{
+	rpc->xid = xid;
+}
 
 int rpc_queue_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu)
 {