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These functions are intended to be used in ctdbd, the ctdb tool and fake_ctdbd, replacing the different copies in each place. ctdb_read_nodes() will replace ctdb_read_nodes_file(). The name change is intentional - in future the location may be something other than a simple filename. The static copies of ctdb_read_nodes_file() and node_map_add() are slightly sanitised versions of those in tools/ctdb.c, with a call to ctdb_parse_node_address(). A bit more care is taken in node_map_add() to avoid undefined behaviour if talloc_realloc() fails. ctdb_parse_node_address() will replace ctdb_parse_address(). There is an obvious argument change, since the ctdb context argument was unused. It can only fail on an invalid node address, so return a bool. This function might be changed later to allow the input address string to include an optional port. Where to put this module isn't entirely clear. It could go in common, so be part of ctdb-util. However, if it later needs ctdb-conf (e.g. to allow the node list location to be configurable) then there would be a direct cyclic dependency. This is configuration handling, so conf/ seems sane. However, I didn't want to put it into the ctdb-conf target, since some code might need to parse a nodes list but not need to parse ctdb.conf. Signed-off-by: Martin Schwenke <mschwenke@ddn.com> Reviewed-by: Anoop C S <anoopcs@samba.org>
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/*
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Node file loading
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Copyright (C) Martin Andrew Tridgell 2007
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Copyright (C) Martin Ronnie Sahlberg 2008, 2009
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Copyright (C) Martin Schwenke 2015
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Copyright (C) Amitay Isaacs 2015
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __CTDB_COMMON_NODES_H__
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#define __CTDB_COMMON_NODES_H__
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#include <talloc.h>
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#include "protocol/protocol.h"
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/**
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* @brief Parse node address string, setting CTDB port
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*
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* Parse a node address string. Set the port number to the CTDB port.
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*
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* @param[in] str Text node address
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* @param[out] address Socket address structure, already allocated
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* @return true on success, false on failure
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*/
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bool ctdb_parse_node_address(const char *str, ctdb_sock_addr *address);
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/**
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* @brief Load node list into a node map
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*
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* Load nodes from location, into a node map, allocated off the given
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* talloc context. Location must be a filename.
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*
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* @param[in] mem_ctx Talloc memory context
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* @param[in] location Location of nodes list
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* @return node map on success, NULL on failure
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*/
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struct ctdb_node_map *ctdb_read_nodes(TALLOC_CTX *mem_ctx,
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const char *location);
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#endif /* __CTDB_COMMON_NODES_H__ */
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