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91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/*
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ctdb database library
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Copyright (C) Andrew Tridgell 2006
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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structure passed to a ctdb call function
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*/
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struct ctdb_call {
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TDB_DATA key; /* record key */
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TDB_DATA record_data; /* current data in the record */
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TDB_DATA *new_data; /* optionally updated record data */
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TDB_DATA *call_data; /* optionally passed from caller */
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TDB_DATA *reply_data; /* optionally returned by function */
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};
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#define CTDB_ERR_INVALID 1
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#define CTDB_ERR_NOMEM 2
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struct event_context;
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/*
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initialise ctdb subsystem
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*/
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struct ctdb_context *ctdb_init(struct event_context *ev);
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/*
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choose the transport
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*/
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int ctdb_set_transport(struct ctdb_context *ctdb, const char *transport);
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/*
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tell ctdb what address to listen on, in transport specific format
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*/
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int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
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/*
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tell ctdb what nodes are available. This takes a filename, which will contain
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1 node address per line, in a transport specific format
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*/
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int ctdb_set_nlist(struct ctdb_context *ctdb, const char *nlist);
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/*
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start the ctdb protocol
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*/
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int ctdb_start(struct ctdb_context *ctdb);
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/*
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error string for last ctdb error
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*/
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const char *ctdb_errstr(struct ctdb_context *);
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/* a ctdb call function */
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typedef int (*ctdb_fn_t)(struct ctdb_call *);
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/*
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setup a ctdb call function
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*/
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int ctdb_set_call(struct ctdb_context *ctdb, ctdb_fn_t fn, int id);
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/*
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attach to a ctdb database
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*/
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int ctdb_attach(struct ctdb_context *ctdb, const char *name, int tdb_flags,
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int open_flags, mode_t mode);
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/*
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make a ctdb call. The associated ctdb call function will be called on the DMASTER
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for the given record
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*/
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int ctdb_call(struct ctdb_context *ctdb, TDB_DATA key, int call_id,
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TDB_DATA *call_data, TDB_DATA *reply_data);
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