| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 |
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| 4 | core clustering code
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| 5 |
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| 6 | Copyright (C) Andrew Tridgell 2006
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| 7 |
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| 8 | This program is free software; you can redistribute it and/or modify
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| 9 | it under the terms of the GNU General Public License as published by
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| 10 | the Free Software Foundation; either version 3 of the License, or
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| 11 | (at your option) any later version.
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| 12 |
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| 13 | This program is distributed in the hope that it will be useful,
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | GNU General Public License for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU General Public License
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| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 20 | */
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| 21 |
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| 22 | #include "includes.h"
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| 23 | #include "cluster/cluster.h"
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| 24 | #include "cluster/cluster_private.h"
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| 25 | #include "librpc/gen_ndr/misc.h"
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| 26 | #include "librpc/gen_ndr/server_id.h"
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| 27 |
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| 28 | static struct cluster_ops *ops;
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| 29 |
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| 30 | /* set cluster operations */
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| 31 | void cluster_set_ops(struct cluster_ops *new_ops)
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| 32 | {
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| 33 | ops = new_ops;
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| 34 | }
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| 35 |
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| 36 | /*
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| 37 | an ugly way of getting at the backend handle (eg. ctdb context) via the cluster API
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| 38 | */
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| 39 | void *cluster_backend_handle(void)
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| 40 | {
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| 41 | return ops->backend_handle(ops);
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| 42 | }
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| 43 |
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| 44 | /* by default use the local ops */
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| 45 | static void cluster_init(void)
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| 46 | {
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| 47 | if (ops == NULL) cluster_local_init();
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| 48 | }
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| 49 |
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| 50 | /*
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| 51 | create a server_id for the local node
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| 52 | */
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| 53 | struct server_id cluster_id(uint64_t id, uint32_t id2)
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| 54 | {
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| 55 | cluster_init();
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| 56 | return ops->cluster_id(ops, id, id2);
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| 57 | }
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| 58 |
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| 59 |
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| 60 | /*
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| 61 | return a server_id as a string
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| 62 | */
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| 63 | const char *cluster_id_string(TALLOC_CTX *mem_ctx, struct server_id id)
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| 64 | {
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| 65 | cluster_init();
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| 66 | return ops->cluster_id_string(ops, mem_ctx, id);
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| 67 | }
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| 68 |
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| 69 |
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| 70 | /*
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| 71 | open a temporary tdb in a cluster friendly manner
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| 72 | */
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| 73 | struct tdb_wrap *cluster_tdb_tmp_open(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx, const char *dbname, int flags)
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| 74 | {
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| 75 | cluster_init();
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| 76 | return ops->cluster_tdb_tmp_open(ops, mem_ctx, lp_ctx, dbname, flags);
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| 77 | }
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| 78 |
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| 79 |
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| 80 | /*
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| 81 | register a callback function for a messaging endpoint
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| 82 | */
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| 83 | NTSTATUS cluster_message_init(struct messaging_context *msg, struct server_id server,
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| 84 | cluster_message_fn_t handler)
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| 85 | {
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| 86 | cluster_init();
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| 87 | return ops->message_init(ops, msg, server, handler);
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| 88 | }
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| 89 |
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| 90 | /*
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| 91 | send a message to another node in the cluster
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| 92 | */
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| 93 | NTSTATUS cluster_message_send(struct server_id server, DATA_BLOB *data)
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| 94 | {
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| 95 | cluster_init();
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| 96 | return ops->message_send(ops, server, data);
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| 97 | }
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