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authorVijay Bellur <vijay@gluster.com>2010-06-28 02:49:46 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-06-28 22:20:45 -0700
commit0da2a6d08cc8fc2315742d010c8a8cab38ef75bb (patch)
treeeed93284ad3826ac7401c9f9540b6afe9a68c2cc /rpc/rpc-lib/src/rpc-clnt.h
parent2c5c3cedc096c36ef9d004ffa0cdb5324d2915e6 (diff)
Move rpc to top-level
Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 875 (Implement a new protocol to provide proper backward/forward compatibility) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=875
Diffstat (limited to 'rpc/rpc-lib/src/rpc-clnt.h')
-rw-r--r--rpc/rpc-lib/src/rpc-clnt.h166
1 files changed, 166 insertions, 0 deletions
diff --git a/rpc/rpc-lib/src/rpc-clnt.h b/rpc/rpc-lib/src/rpc-clnt.h
new file mode 100644
index 00000000000..efc256cd261
--- /dev/null
+++ b/rpc/rpc-lib/src/rpc-clnt.h
@@ -0,0 +1,166 @@
+/*
+ Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
+ 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
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _RPC_CLNT_H
+#define _RPC_CLNT_H
+
+#include "stack.h"
+#include "rpc-transport.h"
+#include "timer.h"
+#include "xdr-common.h"
+
+typedef enum {
+ RPC_CLNT_CONNECT,
+ RPC_CLNT_DISCONNECT,
+ RPC_CLNT_MSG
+} rpc_clnt_event_t;
+
+#define AUTH_GLUSTERFS 5
+
+struct xptr_clnt;
+struct rpc_req;
+struct rpc_clnt;
+struct rpc_clnt_config;
+struct rpc_clnt_program;
+
+typedef int (*rpc_clnt_notify_t) (struct rpc_clnt *rpc, void *mydata,
+ rpc_clnt_event_t fn, void *data);
+
+typedef int (*fop_cbk_fn_t) (struct rpc_req *req, struct iovec *iov, int count,
+ void *myframe);
+
+typedef int (*clnt_fn_t) (call_frame_t *fr, xlator_t *xl, void *args);
+
+struct saved_frame {
+ union {
+ struct list_head list;
+ struct {
+ struct saved_frame *frame_next;
+ struct saved_frame *frame_prev;
+ };
+ };
+ void *capital_this;
+ void *frame;
+ struct timeval saved_at;
+ int32_t procnum;
+ struct rpc_clnt_program *prog;
+ fop_cbk_fn_t cbkfn;
+ uint64_t callid;
+ rpc_transport_rsp_t rsp;
+};
+
+struct saved_frames {
+ int64_t count;
+ struct saved_frame sf;
+};
+
+
+/* Initialized by procnum */
+typedef struct rpc_clnt_procedure {
+ char *procname;
+ clnt_fn_t fn;
+} rpc_clnt_procedure_t;
+
+typedef struct rpc_clnt_program {
+ char *progname;
+ int prognum;
+ int progver;
+ rpc_clnt_procedure_t *proctable;
+ char **procnames;
+ int numproc;
+} rpc_clnt_prog_t;
+
+#define RPC_MAX_AUTH_BYTES 400
+typedef struct rpc_auth_data {
+ int flavour;
+ int datalen;
+ char authdata[RPC_MAX_AUTH_BYTES];
+} rpc_auth_data_t;
+
+#define rpc_auth_flavour(au) ((au).flavour)
+
+struct rpc_clnt_connection {
+ pthread_mutex_t lock;
+ rpc_transport_t *trans;
+ gf_timer_t *reconnect;
+ gf_timer_t *timer;
+ gf_timer_t *ping_timer;
+ struct rpc_clnt *rpc_clnt;
+ char connected;
+ struct saved_frames *saved_frames;
+ int32_t frame_timeout;
+ struct timeval last_sent;
+ struct timeval last_received;
+ int32_t ping_started;
+};
+typedef struct rpc_clnt_connection rpc_clnt_connection_t;
+
+struct rpc_req {
+ rpc_clnt_connection_t *conn;
+ uint32_t xid;
+ struct iovec req[2];
+ int reqcnt;
+ struct iovec rsp[2];
+ int rspcnt;
+ struct iobuf *rsp_prochdr;
+ struct iobuf *rsp_procpayload;
+ int rpc_status;
+ rpc_auth_data_t verf;
+ rpc_clnt_prog_t *prog;
+ int procnum;
+};
+
+struct rpc_clnt {
+ pthread_mutex_t lock;
+ rpc_clnt_notify_t notifyfn;
+ rpc_clnt_connection_t conn;
+ void *mydata;
+ uint64_t xid;
+ glusterfs_ctx_t *ctx;
+};
+
+struct rpc_clnt_config {
+ int rpc_timeout;
+ int remote_port;
+ char * remote_host;
+};
+
+
+struct rpc_clnt * rpc_clnt_init (struct rpc_clnt_config *config,
+ dict_t *options, glusterfs_ctx_t *ctx,
+ char *name);
+
+int rpc_clnt_register_notify (struct rpc_clnt *rpc, rpc_clnt_notify_t fn,
+ void *mydata);
+
+int rpc_clnt_submit (struct rpc_clnt *rpc, rpc_clnt_prog_t *prog,
+ int procnum, fop_cbk_fn_t cbkfn,
+ struct iovec *proghdr, int proghdrcount,
+ struct iovec *progpayload, int progpayloadcount,
+ struct iobref *iobref, void *frame);
+
+void rpc_clnt_destroy (struct rpc_clnt *rpc);
+
+void rpc_clnt_set_connected (rpc_clnt_connection_t *conn);
+
+void rpc_clnt_unset_connected (rpc_clnt_connection_t *conn);
+
+void rpc_clnt_reconnect (void *trans_ptr);
+
+#endif /* !_RPC_CLNT_H */