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Diffstat (limited to 'lib/cosTransactions/test/etrap_test_lib.erl')
| -rw-r--r-- | lib/cosTransactions/test/etrap_test_lib.erl | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/lib/cosTransactions/test/etrap_test_lib.erl b/lib/cosTransactions/test/etrap_test_lib.erl new file mode 100644 index 0000000000..913a94510f --- /dev/null +++ b/lib/cosTransactions/test/etrap_test_lib.erl @@ -0,0 +1,125 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1999-2009. 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% +%% +%% + +-module(etrap_test_lib). + +%%--------------- INCLUDES --------------------------------------------- +-include("etrap_test_lib.hrl"). +-include_lib("cosTransactions/src/ETraP_Common.hrl"). + +%%--------------- EXPORTS ---------------------------------------------- +-export([scratch_debug_fun/0, + activate_debug_fun/5, + update_debug_info/1, + deactivate_debug_fun/3, + eval_debug_fun/4, + set_debug_context/4]). + +%%--------------- CONSTANTS/DEFINITIONS -------------------------------- +-define(DEBUG_TAB, etrap_debug). +-record(debug_info, {id, function, type, file, line}). + +%%--------------- DEBUG FUNCTIONS -------------------------------------- +%% Managing conditional debug functions +%% +%% The main idea with the debug_fun's is to allow test programs +%% to control the internal behaviour of CosTransactions. +%% +%% First should calls to ?eval_debug_fun be inserted at well +%% defined places in CosTransaction's code. E.g. in critical situations +%% of startup, transaction commit, backups etc. +%% +%% Then compile CosTransactions with the compiler option 'debug'. +%% +%% In test programs ?activate_debug_fun should be called +%% in order to bind a fun to the debug identifier stated +%% in the call to ?eval_debug_fun. + +scratch_debug_fun() -> + catch ets:delete(?DEBUG_TAB), + ets:new(?DEBUG_TAB, + [set, public, named_table, {keypos, 2}]). + +activate_debug_fun(FunId, Fun, Type, File, Line) -> + io:format("Activiating ~p RETRIES: ~p WAIT: ~p~n", + [FunId, ?tr_max_retries, ?tr_comm_failure_wait]), + Info = #debug_info{id = FunId, + function = Fun, + type = Type, + file = File, + line = Line}, + update_debug_info(Info). + +update_debug_info(Info) -> + case catch ets:insert(?DEBUG_TAB, Info) of + {'EXIT', _} -> + scratch_debug_fun(), + ets:insert(?DEBUG_TAB, Info); + _ -> + ok + end, + ok. + +deactivate_debug_fun(FunId, _File, _Line) -> + catch ets:delete(?DEBUG_TAB, FunId), + ok. + +eval_debug_fun(FunId, Env, File, Line) -> + case catch ets:lookup(?DEBUG_TAB, FunId) of + [] -> + ok; + [Info] -> + Fun = Info#debug_info.function, + case Info#debug_info.type of + transient -> + deactivate_debug_fun(FunId, File, Line); + _-> + ok + end, + io:format("Running debug fun ~p:~p (LINE: ~p)~n", [File, FunId, Line]), + Fun(Env); + {'EXIT', _R} -> + ok + end. + + +set_debug_context([], [], _, _)-> ok; +set_debug_context([], _, _, _)-> + ets:delete(?DEBUG_TAB), + exit("failed transactions_SUITE. Bad configuration."); +set_debug_context(_, [], _, _)-> + ets:delete(?DEBUG_TAB), + exit("failed transactions_SUITE Bad configuration."); +set_debug_context([RHead|RTail], [CHead|CTail], File, Line)-> + write_context(RHead, CHead, File, Line), + set_debug_context(RTail, CTail, File, Line). + +write_context(_Resource, [], _, _)-> ok; +write_context(Resource, [{Func, Fun, Type}|PTail], File, Line)-> + etrap_test_lib:activate_debug_fun({Resource, Func}, + Fun, Type, + File, Line), + write_context(Resource, PTail, File, Line); +write_context(_,_, _, _) -> + ets:delete(?DEBUG_TAB), + exit("failed transactions_SUITE. Bad configuration."). + + +%%--------------- END OF MODULE ---------------------------------------- |