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authorErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
committerErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
commit84adefa331c4159d432d22840663c38f155cd4c1 (patch)
treebff9a9c66adda4df2106dfd0e5c053ab182a12bd /lib/mnesia/src/mnesia.hrl
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The R13B03 release.OTP_R13B03
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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+
+-define(APPLICATION, mnesia).
+
+-define(ets_lookup(Tab, Key), ets:lookup(Tab, Key)).
+-define(ets_lookup_element(Tab, Key, Pos), ets:lookup_element(Tab, Key, Pos)).
+-define(ets_insert(Tab, Rec), ets:insert(Tab, Rec)).
+-define(ets_delete(Tab, Key), ets:delete(Tab, Key)).
+-define(ets_match_delete(Tab, Pat), ets:match_delete(Tab, Pat)).
+-define(ets_match_object(Tab, Pat), ets:match_object(Tab, Pat)).
+-define(ets_match(Tab, Pat), ets:match(Tab, Pat)).
+-define(ets_info(Tab, Item), ets:info(Tab, Item)).
+-define(ets_update_counter(Tab, Key, Incr), ets:update_counter(Tab, Key, Incr)).
+-define(ets_first(Tab), ets:first(Tab)).
+-define(ets_next(Tab, Key), ets:next(Tab, Key)).
+-define(ets_last(Tab), ets:last(Tab)).
+-define(ets_prev(Tab, Key), ets:prev(Tab, Key)).
+-define(ets_slot(Tab, Pos), ets:slot(Tab, Pos)).
+-define(ets_new_table(Tab, Props), ets:new(Tab, Props)).
+-define(ets_delete_table(Tab), ets:delete(Tab)).
+-define(ets_fixtable(Tab, Bool), ets:fixtable(Tab, Bool)).
+
+-define(catch_val(Var), (catch ?ets_lookup_element(mnesia_gvar, Var, 2))).
+
+%% It's important that counter is first, since we compare tid's
+
+-record(tid,
+ {counter, %% serial no for tid
+ pid}). %% owner of tid
+
+
+-record(tidstore,
+ {store, %% current ets table for tid
+ up_stores = [], %% list of upper layer stores for nested trans
+ level = 1}). %% transaction level
+
+-define(unique_cookie, {erlang:now(), node()}).
+
+-record(cstruct, {name, % Atom
+ type = set, % set | bag
+ ram_copies = [], % [Node]
+ disc_copies = [], % [Node]
+ disc_only_copies = [], % [Node]
+ load_order = 0, % Integer
+ access_mode = read_write, % read_write | read_only
+ index = [], % [Integer]
+ snmp = [], % Snmp Ustruct
+ local_content = false, % true | false
+ record_name = {bad_record_name}, % Atom (Default = Name)
+ attributes = [key, val], % [Atom]
+ user_properties = [], % [Record]
+ frag_properties = [], % [{Key, Val]
+ cookie = ?unique_cookie, % Term
+ version = {{2, 0}, []}}). % {{Integer, Integer}, [Node]}
+
+%% Record for the head structure in Mnesia's log files
+%%
+%% The definition of this record may *NEVER* be changed
+%% since it may be written to very old backup files.
+%% By holding this record definition stable we can be
+%% able to comprahend backups from timepoint 0. It also
+%% allows us to use the backup format as an interchange
+%% format between Mnesia releases.
+
+-record(log_header,{log_kind,
+ log_version,
+ mnesia_version,
+ node,
+ now}).
+
+%% Commit records stored in the transaction log
+-record(commit, {node,
+ decision, % presume_commit | Decision
+ ram_copies = [],
+ disc_copies = [],
+ disc_only_copies = [],
+ snmp = [],
+ schema_ops = []
+ }).
+
+-record(decision, {tid,
+ outcome, % presume_abort | committed
+ disc_nodes,
+ ram_nodes}).
+
+%% Maybe cyclic wait
+-record(cyclic, {node = node(),
+ oid, % {Tab, Key}
+ op, % read | write
+ lock, % read | write
+ lucky
+ }).
+
+%% Managing conditional debug functions
+
+-ifdef(debug).
+ -define(eval_debug_fun(I, C),
+ mnesia_lib:eval_debug_fun(I, C, ?FILE, ?LINE)).
+-else.
+ -define(eval_debug_fun(I, C), ok).
+-endif.
+