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/*
Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#include "client.h"
#include "rpc-clnt.h"
#include "defaults.h"
#include "client-messages.h"
int
client_cbk_null (struct rpc_clnt *rpc, void *mydata, void *data)
{
gf_msg (THIS->name, GF_LOG_WARNING, 0, PC_MSG_FUNCTION_CALL_ERROR,
"this function should not be called");
return 0;
}
int
client_cbk_fetchspec (struct rpc_clnt *rpc, void *mydata, void *data)
{
gf_msg (THIS->name, GF_LOG_WARNING, 0, PC_MSG_FUNCTION_CALL_ERROR,
"this function should not be called");
return 0;
}
int
client_cbk_ino_flush (struct rpc_clnt *rpc, void *mydata, void *data)
{
gf_msg (THIS->name, GF_LOG_WARNING, 0, PC_MSG_FUNCTION_CALL_ERROR,
"this function should not be called");
return 0;
}
int
client_cbk_recall_lease (struct rpc_clnt *rpc, void *mydata, void *data)
{
int ret = -1;
struct iovec *iov = NULL;
struct gf_upcall upcall_data = {0,};
struct gf_upcall_recall_lease rl_data = {0,};
gfs3_recall_lease_req recall_lease = {{0,},};
GF_VALIDATE_OR_GOTO ("client-callback", rpc, out);
GF_VALIDATE_OR_GOTO ("client-callback", mydata, out);
GF_VALIDATE_OR_GOTO ("client-callback", data, out);
iov = (struct iovec *)data;
ret = xdr_to_generic (*iov, &recall_lease,
(xdrproc_t)xdr_gfs3_recall_lease_req);
if (ret < 0) {
gf_msg (THIS->name, GF_LOG_WARNING, -ret,
PC_MSG_RECALL_LEASE_FAIL,
"XDR decode of recall lease failed.");
goto out;
}
upcall_data.data = &rl_data;
ret = gf_proto_recall_lease_to_upcall (&recall_lease, &upcall_data);
if (ret < 0)
goto out;
upcall_data.event_type = GF_UPCALL_RECALL_LEASE;
gf_msg_trace (THIS->name, 0, "Upcall gfid = %s, ret = %d",
recall_lease.gfid, ret);
default_notify (THIS, GF_EVENT_UPCALL, &upcall_data);
out:
if (recall_lease.xdata.xdata_val)
free (recall_lease.xdata.xdata_val);
if (rl_data.dict)
dict_unref (rl_data.dict);
return ret;
}
int
client_cbk_cache_invalidation (struct rpc_clnt *rpc, void *mydata, void *data)
{
int ret = -1;
struct iovec *iov = NULL;
struct gf_upcall upcall_data = {0,};
struct gf_upcall_cache_invalidation ca_data = {0,};
gfs3_cbk_cache_invalidation_req ca_req = {0,};
gf_msg_trace (THIS->name, 0, "Upcall callback is called");
if (!rpc || !mydata || !data)
goto out;
iov = (struct iovec *)data;
ret = xdr_to_generic (*iov, &ca_req,
(xdrproc_t)xdr_gfs3_cbk_cache_invalidation_req);
if (ret < 0) {
gf_msg (THIS->name, GF_LOG_WARNING, -ret,
PC_MSG_CACHE_INVALIDATION_FAIL,
"XDR decode of cache_invalidation failed.");
goto out;
}
upcall_data.data = &ca_data;
ret = gf_proto_cache_invalidation_to_upcall (THIS, &ca_req,
&upcall_data);
if (ret < 0)
goto out;
gf_msg_trace (THIS->name, 0, "Cache invalidation cbk recieved for gfid:"
" %s, ret = %d", ca_req.gfid, ret);
default_notify (THIS, GF_EVENT_UPCALL, &upcall_data);
out:
if (ca_req.gfid)
free (ca_req.gfid);
if (ca_req.xdata.xdata_val)
free (ca_req.xdata.xdata_val);
if (ca_data.dict)
dict_unref (ca_data.dict);
return 0;
}
int
client_cbk_child_up (struct rpc_clnt *rpc, void *mydata, void *data)
{
clnt_conf_t *conf = NULL;
xlator_t *this = NULL;
this = THIS;
GF_VALIDATE_OR_GOTO ("client", this, out);
GF_VALIDATE_OR_GOTO (this->name, rpc, out);
conf = this->private;
GF_VALIDATE_OR_GOTO (this->name, conf, out);
gf_msg_debug (this->name, 0, "Received CHILD_UP");
conf->child_up = _gf_true;
this->notify (this, GF_EVENT_CHILD_UP, NULL);
out:
return 0;
}
int
client_cbk_child_down (struct rpc_clnt *rpc, void *mydata, void *data)
{
clnt_conf_t *conf = NULL;
xlator_t *this = NULL;
this = THIS;
GF_VALIDATE_OR_GOTO ("client", this, out);
GF_VALIDATE_OR_GOTO (this->name, rpc, out);
conf = this->private;
GF_VALIDATE_OR_GOTO (this->name, conf, out);
gf_msg_debug (this->name, 0, "Received CHILD_DOWN");
conf->child_up = _gf_false;
this->notify (this, GF_EVENT_CHILD_DOWN, NULL);
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_CACHE_INVALIDATION] = {"CACHE_INVALIDATION", GF_CBK_CACHE_INVALIDATION, client_cbk_cache_invalidation },
[GF_CBK_CHILD_UP] = {"CHILD_UP", GF_CBK_CHILD_UP, client_cbk_child_up },
[GF_CBK_CHILD_DOWN] = {"CHILD_DOWN", GF_CBK_CHILD_DOWN, client_cbk_child_down },
[GF_CBK_RECALL_LEASE] = {"RECALL_LEASE", GF_CBK_RECALL_LEASE, client_cbk_recall_lease },
};
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,
};
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