From 2a4561ef08b8be3b7d79b951252e87ba8f987120 Mon Sep 17 00:00:00 2001 From: Soumya Koduri Date: Mon, 16 Feb 2015 11:47:58 +0530 Subject: gfapi: APIs to store and process upcall notifications received In case of any upcall cbk events received by the protocol/client, gfapi will be notified which queues them up in a list (). Applicatons are responsible to provide APIs to process & notify them in case of any such upcall events queued. Added a new API which will be used by Ganesha to repeatedly poll for any such upcall event notified (). A new test-file has been added to test the cache_invalidation upcall events. Below link has a writeup which explains the code changes done - URL: https://soumyakoduri.wordpress.com/2015/02/25/glusterfs-understanding-upcall-infrastructure-and-cache-invalidation-support/ Change-Id: Iafc6880000c865fd4da22d0cfc388ec135b5a1c5 BUG: 1200262 Signed-off-by: Soumya Koduri Reviewed-on: http://review.gluster.org/9536 Tested-by: Gluster Build System Reviewed-by: Kaleb KEITHLEY --- xlators/protocol/client/src/client-callback.c | 34 +++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) (limited to 'xlators/protocol/client') diff --git a/xlators/protocol/client/src/client-callback.c b/xlators/protocol/client/src/client-callback.c index b2707cb395b..fdfb3dc313b 100644 --- a/xlators/protocol/client/src/client-callback.c +++ b/xlators/protocol/client/src/client-callback.c @@ -15,6 +15,7 @@ #include "client.h" #include "rpc-clnt.h" +#include "defaults.h" int client_cbk_null (struct rpc_clnt *rpc, void *mydata, void *data) @@ -40,10 +41,43 @@ client_cbk_ino_flush (struct rpc_clnt *rpc, void *mydata, void *data) return 0; } +int +client_cbk_upcall (struct rpc_clnt *rpc, void *mydata, void *data) +{ + int ret = -1; + gfs3_upcall_req up_req; + struct gf_upcall upcall_data; + struct iovec *iov = NULL; + + gf_log (THIS->name, GF_LOG_TRACE, + "Upcall callback is called"); + + if (!rpc || !mydata || !data) + goto out; + + iov = (struct iovec *)data; + ret = xdr_to_generic (*iov, &up_req, + (xdrproc_t)xdr_gfs3_upcall_req); + + if (ret < 0) + goto out; + + gf_proto_upcall_to_upcall (&up_req, &upcall_data); + + gf_log (THIS->name, GF_LOG_TRACE, "Upcall gfid = %s, ret = %d", + (char *)(up_req.gfid), ret); + + default_notify (THIS, GF_EVENT_UPCALL, &upcall_data); + +out: + return 0; +} + rpcclnt_cb_actor_t gluster_cbk_actors[GF_CBK_MAXVALUE] = { [GF_CBK_NULL] = {"NULL", GF_CBK_NULL, client_cbk_null }, [GF_CBK_FETCHSPEC] = {"FETCHSPEC", GF_CBK_FETCHSPEC, client_cbk_fetchspec }, [GF_CBK_INO_FLUSH] = {"INO_FLUSH", GF_CBK_INO_FLUSH, client_cbk_ino_flush }, + [GF_CBK_UPCALL] = {"UPCALL", GF_CBK_UPCALL, client_cbk_upcall }, }; -- cgit