From 8071909e84b6a479a6b5be1eddd15e8b16fc1a80 Mon Sep 17 00:00:00 2001 From: Amar Tumballi Date: Fri, 27 Aug 2010 06:45:38 +0000 Subject: rpc: server to client callback mechanism Signed-off-by: Amar Tumballi Signed-off-by: Vijay Bellur --- xlators/protocol/client/src/Makefile.am | 3 +- xlators/protocol/client/src/client-callback.c | 60 +++++++++++++++++++++++++++ xlators/protocol/client/src/client.c | 5 +++ xlators/protocol/server/src/server.c | 13 ++++++ xlators/protocol/server/src/server.h | 1 + 5 files changed, 81 insertions(+), 1 deletion(-) create mode 100644 xlators/protocol/client/src/client-callback.c (limited to 'xlators/protocol') diff --git a/xlators/protocol/client/src/Makefile.am b/xlators/protocol/client/src/Makefile.am index 159faf268a7..007810e9901 100644 --- a/xlators/protocol/client/src/Makefile.am +++ b/xlators/protocol/client/src/Makefile.am @@ -8,7 +8,8 @@ client_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la \ $(top_builddir)/rpc/rpc-lib/src/libgfrpc.la \ $(top_builddir)/rpc/xdr/src/libgfxdr.la -client_la_SOURCES = client.c client-helpers.c client3_1-fops.c client-handshake.c +client_la_SOURCES = client.c client-helpers.c client3_1-fops.c \ + client-handshake.c client-callback.c noinst_HEADERS = client.h client-mem-types.h AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall -D$(GF_HOST_OS) \ diff --git a/xlators/protocol/client/src/client-callback.c b/xlators/protocol/client/src/client-callback.c new file mode 100644 index 00000000000..51bd3375845 --- /dev/null +++ b/xlators/protocol/client/src/client-callback.c @@ -0,0 +1,60 @@ +/* + Copyright (c) 2010 Gluster, Inc. + This file is part of GlusterFS. + + GlusterFS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 3 of the License, + or (at your option) any later version. + + GlusterFS is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see + . +*/ + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "client.h" +#include "rpc-clnt.h" + +int +client_cbk_null (void *data) +{ + return 0; +} + +int +client_cbk_fetchspec (void *data) +{ + gf_log ("", 1, "here i am"); + return 0; +} + +int +client_cbk_ino_flush (void *data) +{ + return 0; +} + +rpcclnt_cb_actor_t gluster_cbk_actors[] = { + [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 }, +}; + + +struct rpcclnt_cb_program gluster_cbk_prog = { + .progname = "GlusterFS Callback", + .prognum = GLUSTER_CBK_PROGRAM, + .progver = GLUSTER_CBK_VERSION, + .actors = gluster_cbk_actors, + .numactors = GF_CBK_MAXVALUE, +}; diff --git a/xlators/protocol/client/src/client.c b/xlators/protocol/client/src/client.c index c840d96f54c..458ecfa8f88 100644 --- a/xlators/protocol/client/src/client.c +++ b/xlators/protocol/client/src/client.c @@ -34,6 +34,7 @@ extern rpc_clnt_prog_t clnt_handshake_prog; extern rpc_clnt_prog_t clnt_dump_prog; +extern struct rpcclnt_cb_program gluster_cbk_prog; int client_handshake (xlator_t *this, struct rpc_clnt *rpc); void client_start_ping (void *data); @@ -1730,6 +1731,10 @@ client_init_rpc (xlator_t *this) conf->handshake = &clnt_handshake_prog; conf->dump = &clnt_dump_prog; + ret = rpcclnt_cbk_program_register (conf->rpc, &gluster_cbk_prog); + if (ret) + goto out; + ret = 0; gf_log (this->name, GF_LOG_DEBUG, "client init successful"); diff --git a/xlators/protocol/server/src/server.c b/xlators/protocol/server/src/server.c index 262da3e3158..8a7d9da0bbf 100644 --- a/xlators/protocol/server/src/server.c +++ b/xlators/protocol/server/src/server.c @@ -123,6 +123,10 @@ server_submit_reply (call_frame_t *frame, rpcsvc_request_t *req, void *arg, ret = rpcsvc_submit_generic (req, &rsp, 1, payload, payloadcount, iobref); + /* TODO: this is demo purpose only */ + /* ret = rpcsvc_callback_submit (req->svc, req->trans, req->prog, + GF_CBK_NULL, &rsp, 1); + */ /* Now that we've done our job of handing the message to the RPC layer * we can safely unref the iob in the hope that RPC layer must have * ref'ed the iob on receiving into the txlist. @@ -366,6 +370,7 @@ server_rpc_notify (rpcsvc_t *rpc, void *xl, rpcsvc_event_t event, xlator_t *this = NULL; rpc_transport_t *xprt = NULL; server_connection_t *conn = NULL; + server_conf_t *conf = NULL; if (!xl || !data) { @@ -376,6 +381,7 @@ server_rpc_notify (rpcsvc_t *rpc, void *xl, rpcsvc_event_t event, this = xl; xprt = data; + conf = this->private; switch (event) { case RPCSVC_EVENT_ACCEPT: @@ -388,6 +394,10 @@ server_rpc_notify (rpcsvc_t *rpc, void *xl, rpcsvc_event_t event, xprt->protocol_private = conn; */ + INIT_LIST_HEAD (&xprt->list); + + list_add_tail (&xprt->list, &conf->xprt_list); + break; } case RPCSVC_EVENT_DISCONNECT: @@ -395,6 +405,8 @@ server_rpc_notify (rpcsvc_t *rpc, void *xl, rpcsvc_event_t event, if (conn) server_connection_put (this, conn); + list_del (&xprt->list); + break; default: break; @@ -449,6 +461,7 @@ init (xlator_t *this) GF_VALIDATE_OR_GOTO(this->name, conf, out); INIT_LIST_HEAD (&conf->conns); + INIT_LIST_HEAD (&conf->xprt_list); pthread_mutex_init (&conf->mutex, NULL); this->private = conf; diff --git a/xlators/protocol/server/src/server.h b/xlators/protocol/server/src/server.h index 62e5ef886cf..b58e8a5fada 100644 --- a/xlators/protocol/server/src/server.h +++ b/xlators/protocol/server/src/server.h @@ -99,6 +99,7 @@ struct server_conf { dict_t *auth_modules; pthread_mutex_t mutex; struct list_head conns; + struct list_head xprt_list; }; typedef struct server_conf server_conf_t; -- cgit