%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2003-2015. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%----------------------------------------------------------------------
%% Purpose:
%%
%% Test: ts:run(snmp, snmp_log_test, [batch]).
%% Test: ts:run(snmp, snmp_log_test, log_to_txt2, [batch]).
%%
%%----------------------------------------------------------------------
-module(snmp_log_test).
%%----------------------------------------------------------------------
%% Include files
%%----------------------------------------------------------------------
-include_lib("common_test/include/ct.hrl").
-include("snmp_test_lib.hrl").
-define(SNMP_USE_V3, true).
-include_lib("snmp/include/snmp_types.hrl").
-include_lib("kernel/include/file.hrl").
%%----------------------------------------------------------------------
%% External exports
%%----------------------------------------------------------------------
-export([
init_per_testcase/2, end_per_testcase/2,
all/0,
groups/0,
init_per_group/2,
end_per_group/2,
open_and_close/1,
open_write_and_close1/1,
open_write_and_close2/1,
open_write_and_close3/1,
open_write_and_close4/1,
log_to_io1/1,
log_to_io2/1,
log_to_txt1/1,
log_to_txt2/1,
log_to_txt3/1
]).
%%----------------------------------------------------------------------
%% Internal exports
%%----------------------------------------------------------------------
-export([
log_writer_main/5,
log_reader_main/1,
next_seqno/2
]).
%%----------------------------------------------------------------------
%% Macros
%%----------------------------------------------------------------------
%%----------------------------------------------------------------------
%% Records
%%----------------------------------------------------------------------
%%======================================================================
%% External functions
%%======================================================================
init_per_testcase(Case, Config) when is_list(Config) ->
Dir = ?config(priv_dir, Config),
LogTestDir = join(Dir, ?MODULE),
CaseDir = join(LogTestDir, Case),
case file:make_dir(LogTestDir) of
ok ->
ok;
{error, eexist} ->
ok;
Error ->
?FAIL({failed_creating_subsuite_top_dir, Error})
end,
?line ok = file:make_dir(CaseDir),
Dog = ?WD_START(?MINS(5)),
[{log_dir, CaseDir}, {watchdog, Dog}|Config].
end_per_testcase(_Case, Config) when is_list(Config) ->
%% Leave the dirs created above (enable debugging of the test case(s))
Dog = ?config(watchdog, Config),
?WD_STOP(Dog),
lists:keydelete(watchdog, 1, Config).
%%======================================================================
%% Test case definitions
%%======================================================================
%% ?SKIP(not_yet_implemented).
all() ->
[
open_and_close,
{group, open_write_and_close},
{group, log_to_io},
{group, log_to_txt}].
groups() ->
[
{open_write_and_close, [],
[open_write_and_close1, open_write_and_close2,
open_write_and_close3, open_write_and_close4]},
{log_to_io, [], [log_to_io1, log_to_io2]},
{log_to_txt, [],
[log_to_txt1, log_to_txt2, log_to_txt3]}
].
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
%%======================================================================
%% Test functions
%%======================================================================
open_and_close(suite) -> [];
open_and_close(Config) when is_list(Config) ->
p(open_and_close),
put(sname,open_and_close),
put(verbosity,trace),
Dir = ?config(log_dir, Config),
Name = "snmp_test",
File = join(Dir, "snmp_test.log"),
Size = {1024, 10},
Repair = true,
?line {ok, Log} = snmp_log:create(Name, File, Size, Repair),
?line ok = snmp_log:sync(Log),
?line {ok, Info} = snmp_log:info(Log),
display_info(Info),
?line ok = snmp_log:close(Log).
%%======================================================================
open_write_and_close1(suite) ->
[];
open_write_and_close1(doc) ->
"Open a plain (no sequence-numbering) log file";
open_write_and_close1(Config) when is_list(Config) ->
p(open_write_and_close1),
put(sname,open_write_and_close1),
put(verbosity,trace),
?DBG("open_write_and_close1 -> start", []),
SeqNoGen = none,
?line ok = open_write_and_close(SeqNoGen, Config),
?DBG("open_write_and_close1 -> done", []),
ok.
%%======================================================================
open_write_and_close2(suite) ->
[];
open_write_and_close2(doc) ->
"Open a log file with sequence-numbering explicitly disabled";
open_write_and_close2(Config) when is_list(Config) ->
p(open_write_and_close2),
put(sname,open_write_and_close2),
put(verbosity,trace),
?DBG("open_write_and_close2 -> start", []),
SeqNoGen = disabled,
?line ok = open_write_and_close(SeqNoGen, Config),
?DBG("open_write_and_close2 -> done", []),
ok.
%%======================================================================
open_write_and_close3(suite) ->
[];
open_write_and_close3(doc) ->
"Open a log file with sequence-numbering using MFA";
open_write_and_close3(Config) when is_list(Config) ->
p(open_write_and_close3),
put(sname,open_write_and_close3),
put(verbosity,trace),
?DBG("open_write_and_close2 -> start", []),
seqno_init(),
SeqNoGen = {?MODULE, next_seqno, [10, 100]},
?line ok = open_write_and_close(SeqNoGen, Config),
seqno_finish(),
?DBG("open_write_and_close2 -> done", []),
ok.
%%======================================================================
open_write_and_close4(suite) ->
[];
open_write_and_close4(doc) ->
"Open a log file with sequence-numbering using fun";
open_write_and_close4(Config) when is_list(Config) ->
p(open_write_and_close4),
put(sname,open_write_and_close4),
put(verbosity,trace),
?DBG("open_write_and_close2 -> start", []),
seqno_init(),
SeqNoGen = fun() -> next_seqno(10, 100) end,
?line ok = open_write_and_close(SeqNoGen, Config),
seqno_finish(),
?DBG("open_write_and_close2 -> done", []),
ok.
%%======================================================================
seqno_init() ->
ets:new(snmp_log_test_seqno_tab, [named_table, set, protected]).
seqno_finish() ->
ets:delete(snmp_log_test_seqno_tab).
next_seqno(Initial, Max) ->
Key = seqno,
Position = 2,
Increment = 1,
Threshold = Max,
SetValue = Initial,
UpdateOp = {Position, Increment, Threshold, SetValue},
Tab = snmp_log_test_seqno_tab,
case (catch ets:update_counter(Tab, Key, UpdateOp)) of
{'EXIT', {badarg, _}} ->
ets:insert(Tab, {seqno, Initial}),
Initial;
Next when is_integer(Next) ->
Next
end.
open_write_and_close(SeqNoGen, Config) ->
?DBG("open_write_and_close1 -> start", []),
Dir = ?config(log_dir, Config),
Name = "snmp_test",
File = join(Dir, "snmp_test.log"),
Size = {1024, 10},
Repair = true,
?DBG("open_write_and_close -> create log", []),
?line {ok, Log} =
case SeqNoGen of
none ->
snmp_log:create(Name, File, Size, Repair);
_ ->
snmp_log:create(Name, File, SeqNoGen, Size, Repair)
end,
Vsn = 'version-2',
Community = "all-rights",
?DBG("open_write_and_close1 -> create messages to log", []),
%% A request
?line Req = get_next_request(Vsn, Community, [1,1], 1, 235779012),
%% A reply
?line Rep = get_response(Vsn, Community,
[1,3,6,1,2,1,1,1,0], 'OCTET STRING',
"Erlang SNMP agent", 1, 235779012),
%% Create a list of messages to log:
Msgs = lists:flatten(lists:duplicate(1002,[Req,Rep])),
%% And now log them:
?DBG("open_write_and_close1 -> log ~p messages, ~p bytes",
[length(Msgs), size(list_to_binary(Msgs))]),
Addr = ?LOCALHOST(),
Port = 162,
Logger = fun(Packet) ->
?line ok = snmp_log:log(Log, Packet, Addr, Port)
end,
lists:foreach(Logger, Msgs),
check_notify(),
?DBG("open_write_and_close1 -> display info", []),
?line {ok, Info} = snmp_log:info(Log),
display_info(Info),
?DBG("open_write_and_close1 -> close log", []),
?line ok = snmp_log:close(Log),
?DBG("open_write_and_close -> done", []),
ok.
%%======================================================================
log_to_io1(suite) -> [];
log_to_io1(doc) -> "Log to io from the same process that opened "
"and wrote the log";
log_to_io1(Config) when is_list(Config) ->
p(log_to_io1),
put(sname,l2i1),
put(verbosity,debug),
?DBG("log_to_io1 -> start", []),
Dir = ?config(log_dir, Config),
Name = "snmp_test_l2i1",
File = join(Dir, "snmp_test_l2i1.log"),
Size = {1024, 10},
Repair = true,
?DBG("log_to_io1 -> create log", []),
?line {ok, Log} = snmp_log:create(Name, File, Size, Repair),
?DBG("log_to_io1 -> create messages to log", []),
Msgs = messages(),
?DBG("log_to_io1 -> create logger funs", []),
Addr = ?LOCALHOST(),
Port = 162,
Logger = fun(Packet) ->
?line ok = snmp_log:log(Log, Packet, Addr, Port)
end,
BatchLogger = fun(Time) ->
lists:foreach(Logger, Msgs),
?SLEEP(Time),
ok
end,
To = lists:duplicate(100, 100),
?DBG("log_to_io1 -> log the messages", []),
lists:foreach(BatchLogger, To),
?DBG("log_to_io1 -> display info", []),
?line {ok, Info} = snmp_log:info(Log),
display_info(Info),
?DBG("log_to_io1 -> do the convert to io (stdout)", []),
? line ok = snmp:log_to_io(Dir, [], Name, File, false),
?DBG("log_to_io1 -> close log", []),
?line ok = snmp_log:close(Log),
?DBG("log_to_io1 -> done", []),
ok.
%%======================================================================
%% Start a logger-process that logs messages with a certain interval.
%% Start a reader-process that reads messages from the log at a certain
%% point in time.
log_to_io2(suite) -> [];
log_to_io2(doc) -> "Log to io from a different process than which "
"opened and wrote the log";
log_to_io2(Config) when is_list(Config) ->
process_flag(trap_exit, true),
p(log_to_io2),
put(sname, l2i2),
put(verbosity,debug),
?DBG("log_to_io2 -> start", []),
Dir = ?config(log_dir, Config),
Name = "snmp_test_l2i2",
File = join(Dir, "snmp_test_l2i2.log"),
Size = {1024, 10},
Repair = true,
?DBG("log_to_io2 -> create log writer process", []),
?line {ok, Log, Logger} = log_writer_start(Name, File, Size, Repair),
?DBG("log_to_io2 -> create log reader process", []),
?line {ok, Reader} = log_reader_start(),
?DBG("log_to_io2 -> wait some time", []),
?SLEEP(5000),
?DBG("log_to_io2 -> display log info", []),
?line log_writer_info(Logger),
?DBG("log_to_io2 -> instruct the log writer to sleep some", []),
?line ok = log_writer_sleep(Logger, 5000),
?DBG("log_to_io2 -> instruct the log reader to log to io", []),
Res =
log_reader_log_to(Reader,
fun() ->
I = disk_log:info(Log),
R = snmp:log_to_io(Dir, [], Name, File, true),
{R, I}
end),
case Res of
{ok, _Info} ->
?DBG("log_to_io2 -> ~n Info: ~p", [_Info]),
ok;
{Error, Info} ->
?DBG("log_to_io2 -> log to io failed: "
"~n Error: ~p"
"~n Info: ~p", [Error, Info]),
?line ?FAIL({log_lo_io_failed, Error, Info})
end,
?DBG("log_to_io2 -> instruct the log writer to stop", []),
?line log_writer_stop(Logger),
?DBG("log_to_io2 -> instruct the log reader to stop", []),
?line log_reader_stop(Reader),
?DBG("log_to_io2 -> done", []),
ok.
%%======================================================================
log_to_txt1(suite) -> [];
log_to_txt1(Config) when is_list(Config) ->
p(log_to_txt1),
put(sname,l2t1),
put(verbosity,debug),
?DBG("log_to_txt1 -> start", []),
Name = "snmp_test_l2t1",
SeqNoGen = disabled,
?line ok = log_to_txt(Name, SeqNoGen, Config),
?DBG("log_to_txt1 -> done", []),
ok.
%%======================================================================
log_to_txt2(suite) -> [];
log_to_txt2(Config) when is_list(Config) ->
p(log_to_txt2),
put(sname,l2t2),
put(verbosity,debug),
?DBG("log_to_txt2 -> start", []),
Name = "snmp_test_l2t2",
seqno_init(),
SeqNoGen = {?MODULE, next_seqno, [1, 100]},
?line ok = log_to_txt(Name, SeqNoGen, Config),
seqno_finish(),
?DBG("log_to_txt2 -> done", []),
ok.
%%======================================================================
log_to_txt(Name, SeqNoGen, Config) when is_list(Config) ->
?DBG("log_to_txt -> entry", []),
Dir = ?config(log_dir, Config),
File = join(Dir, Name ++ ".log"),
Size = {10240, 10},
Repair = true,
?DBG("log_to_txt -> create log", []),
?line {ok, Log} =
case SeqNoGen of
none ->
snmp_log:create(Name, File, Size, Repair);
_ ->
snmp_log:create(Name, File, SeqNoGen, Size, Repair)
end,
?DBG("log_to_txt -> create messages to log", []),
Msgs = messages(),
?DBG("log_to_txt -> create logger funs", []),
Addr = ?LOCALHOST(),
Port = 162,
Logger = fun(Packet) ->
?line ok = snmp_log:log(Log, Packet, Addr, Port)
end,
BatchLogger = fun(Time) ->
lists:foreach(Logger, Msgs),
?SLEEP(Time),
ok
end,
To = lists:duplicate(20, 5000),
?DBG("log_to_txt -> log the messages", []),
Start = calendar:local_time(),
lists:foreach(BatchLogger, To),
Stop = calendar:local_time(),
?DBG("log_to_txt -> display info", []),
?line {ok, Info} = snmp_log:info(Log),
display_info(Info),
Out1a = join(Dir, "snmp_text-1-unblocked.txt"),
?DBG("log_to_txt -> do the convert to a text file (~s) unblocked", [Out1a]),
?line ok = snmp:log_to_txt(Dir, [], Out1a, Log, File, false),
?line {ok, #file_info{size = Size1a}} = file:read_file_info(Out1a),
?DBG("log_to_txt -> text file size: ~p", [Size1a]),
validate_size(Size1a),
Out1b = join(Dir, "snmp_text-1-blocked.txt"),
?DBG("log_to_txt -> do the convert to a text file (~s) blocked", [Out1b]),
?line ok = snmp:log_to_txt(Dir, [], Out1b, Log, File, true),
?line {ok, #file_info{size = Size1b}} = file:read_file_info(Out1b),
?DBG("log_to_txt -> text file size: ~p", [Size1b]),
validate_size(Size1b, {eq, Size1a}),
Out2 = join(Dir, "snmp_text-2.txt"),
?DBG("log_to_txt -> do the convert to a text file when"
"~n Start: ~p"
"~n Stop: ~p"
"~n Out2: ~p", [Start, Stop, Out2]),
?line ok = snmp:log_to_txt(Dir, [], Out2, Log, File, Start, Stop),
?line {ok, #file_info{size = Size2}} = file:read_file_info(Out2),
?DBG("log_to_txt -> text file size: ~p", [Size2]),
validate_size(Size2, {le, Size1a}),
%% Calculate new start / stop times...
GStart = calendar:datetime_to_gregorian_seconds(Start),
?DBG("log_to_txt -> GStart: ~p", [GStart]),
GStop = calendar:datetime_to_gregorian_seconds(Stop),
?DBG("log_to_txt -> GStop: ~p", [GStop]),
Diff4 = (GStop - GStart) div 4,
?DBG("log_to_txt -> Diff4: ~p", [Diff4]),
GStart2 = GStart + Diff4,
GStop2 = GStop - Diff4,
if
GStop2 > GStart2 ->
ok;
true ->
?FAIL({date_calc_failure, GStart2, GStop2})
end,
Start2 = calendar:gregorian_seconds_to_datetime(GStart2),
Stop2 = calendar:gregorian_seconds_to_datetime(GStop2),
Out3 = join(Dir, "snmp_text-3.txt"),
?DBG("log_to_txt -> do the convert to a text file when"
"~n Start2: ~p"
"~n Stop2: ~p"
"~n Out3: ~p", [Start2, Stop2, Out3]),
?line ok = snmp:log_to_txt(Dir, [], Out3, Log, File, Start2, Stop2),
?line {ok, #file_info{size = Size3}} = file:read_file_info(Out3),
?DBG("log_to_txt -> text file size: ~p", [Size3]),
validate_size(Size3, {l, Size1a}),
?DBG("log_to_txt -> close log", []),
?line ok = snmp_log:close(Log),
?DBG("log_to_txt -> done", []),
ok.
%%======================================================================
%% Start a logger-process that logs messages with a certain interval.
%% Start a reader-process that reads messages from the log at a certain
%% point of time.
%%
%% Test: ts:run(snmp, snmp_log_test, log_to_txt2, [batch]).
log_to_txt3(suite) ->
[];
log_to_txt3(doc) ->
"Log to txt file from a different process than which "
"opened and wrote the log";
log_to_txt3(Config) when is_list(Config) ->
process_flag(trap_exit, true),
p(log_to_txt3),
put(sname,l2t3),
put(verbosity,debug),
?DBG("log_to_txt3 -> start", []),
Dir = ?config(log_dir, Config),
Name = "snmp_test_l2t3",
LogFile = join(Dir, "snmp_test_l2t3.log"),
TxtFile = join(Dir, "snmp_test_l2t3.txt"),
Meg = 1024*1024,
Size = {10*Meg, 10},
Repair = true,
StdMibDir = filename:join(code:priv_dir(snmp), "mibs") ++ "/",
Mibs = [join(StdMibDir, "SNMPv2-MIB")],
?DBG("log_to_txt3 -> create log writer process", []),
?line {ok, Log, Logger} = log_writer_start(Name, LogFile, Size, Repair),
?DBG("log_to_txt3 -> create log reader process", []),
?line {ok, Reader} = log_reader_start(),
?DBG("log_to_txt3 -> wait some time", []),
?SLEEP(5000),
?DBG("log_to_txt3 -> display log info", []),
?line log_writer_info(Logger),
?DBG("log_to_txt3 -> instruct the log writer to sleep some", []),
?line ok = log_writer_sleep(Logger, 5000),
?DBG("log_to_txt3 -> instruct the log reader to log to txt", []),
Res =
log_reader_log_to(Reader,
fun() ->
I = disk_log:info(Log),
T1 = snmp_misc:now(ms),
R = snmp_log:log_to_txt(Log, LogFile, Dir,
Mibs, TxtFile),
T2 = snmp_misc:now(ms),
io:format(user,
"Time converting file: ~w ms~n",
[T2 - T1]),
{R, I}
end),
case Res of
{ok, _Info} ->
?DBG("log_to_txt3 -> ~n Info: ~p", [_Info]),
?line {ok, #file_info{size = FileSize}} =
file:read_file_info(TxtFile),
?DBG("log_to_txt3 -> text file size: ~p", [FileSize]),
validate_size(FileSize);
{Error, Info} ->
?DBG("log_to_txt3 -> log to txt failed: "
"~n Error: ~p"
"~n Info: ~p", [Error, Info]),
?line ?FAIL({log_lo_txt_failed, Error, Info})
end,
?DBG("log_to_txt3 -> instruct the log writer to stop", []),
?line log_writer_stop(Logger),
?DBG("log_to_txt3 -> instruct the log reader to stop", []),
?line log_reader_stop(Reader),
?DBG("log_to_txt3 -> done", []),
ok.
validate_size(0) ->
?FAIL(invalid_size);
validate_size(_) ->
ok.
validate_size(0, _) ->
?FAIL(invalid_size);
validate_size(A, {eq, A}) ->
ok;
validate_size(A, {le, B}) when A =< B ->
ok;
validate_size(A, {l, B}) when A < B ->
ok;
validate_size(A, B) ->
?FAIL({invalid_size, A, B}).
%%======================================================================
%% Internal functions
%%======================================================================
log_writer_start(Name, File, Size, Repair) ->
Pid = spawn_link(?MODULE, log_writer_main,
[Name, File, Size, Repair, self()]),
receive
{log, Log, Pid} ->
{ok, Log, Pid};
{'EXIT', Pid, Reason} ->
{error, Reason}
after 60000 ->
Msg = receive Any -> Any after 0 -> nothing end,
Info = (catch process_info(Pid)),
exit({failed_starting_writer, timeout, Msg, Info})
end.
log_writer_stop(Pid) ->
Pid ! {stop, self()},
_T1 = snmp_misc:now(ms),
receive
{'EXIT', Pid, normal} ->
_T2 = snmp_misc:now(ms),
?DBG("it took ~w ms to stop the writer", [_T2 - _T1]),
ok
after 60000 ->
Msg = receive Any -> Any after 0 -> nothing end,
Info = (catch process_info(Pid)),
exit({failed_stopping_writer, timeout, Msg, Info})
end.
log_writer_info(Pid) ->
Pid ! {info, self()}.
log_writer_sleep(Pid, Time) ->
Pid ! {sleep, Time, self()},
_T1 = snmp_misc:now(ms),
receive
{sleeping, Pid} ->
_T2 = snmp_misc:now(ms),
?DBG("it took ~w ms to put the writer to sleep", [_T2 - _T1]),
ok;
{'EXIT', Pid, Reason} ->
{error, Reason}
after 60000 ->
Msg = receive Any -> Any after 0 -> nothing end,
Info = (catch process_info(Pid)),
exit({failed_put_writer_to_sleep, timeout, Msg, Info})
end.
log_writer_main(Name, File, Size, Repair, P) ->
process_flag(trap_exit, true),
%% put(sname,log_writer),
%% put(verbosity,trace),
{ok, Log} = snmp_log:create(Name, File, Size, Repair),
P ! {log, Log, self()},
Msgs = lists:flatten(lists:duplicate(10, messages())),
Addr = ?LOCALHOST(),
Port = 162,
Logger = fun(Packet) ->
?line ok = snmp_log:log(Log, Packet, Addr, Port)
end,
BatchLogger = fun(Time) ->
lists:foreach(Logger, Msgs),
?SLEEP(Time),
ok
end,
log_writer(Log, BatchLogger, P).
log_writer(Log, Fun, P) ->
lp("entry"),
receive
{stop, P} ->
lp("received stop request"),
ok = snmp_log:close(Log),
exit(normal);
{info, P} ->
lp("received info request"),
{ok, Info} = snmp_log:info(Log),
display_info(Info),
log_writer(Log, Fun, P);
{sleep, Time, P} ->
lp("received sleep (~w) request", [Time]),
P ! {sleeping, self()},
?SLEEP(Time),
lp("done sleeping"),
log_writer(Log, Fun, P);
ELSE ->
io:format("ERROR:logger - received unknown message: "
"~n ~p~n", [ELSE]),
log_writer(Log, Fun, P)
after 1000 ->
lp("log some messages"),
To = lists:duplicate(100, 100),
lists:foreach(Fun, To),
log_writer(Log, Fun, P)
end.
lp(F) ->
lp(F, []).
lp(F, A) ->
io:format(user,"writer [~w] " ++ F ++ "~n", [self()|A]).
%% --
log_reader_start() ->
Pid = spawn_link(?MODULE, log_reader_main, [self()]),
_T1 = snmp_misc:now(ms),
receive
{started, Pid} ->
_T2 = snmp_misc:now(ms),
?DBG("it took ~w ms to start the reader", [_T2 - _T1]),
{ok, Pid};
{'EXIT', Pid, Reason} ->
{error, Reason}
after 1000 ->
error
end.
log_reader_stop(Pid) ->
Pid ! {stop, self()},
_T1 = snmp_misc:now(ms),
receive
{'EXIT', Pid, normal} ->
_T2 = snmp_misc:now(ms),
?DBG("it took ~w ms to put the reader to eleep", [_T2 - _T1]),
ok
after 1000 ->
Msg = receive Any -> Any after 0 -> nothing end,
exit({failed_stopping_reader, timeout, Msg})
end.
log_reader_log_to(Pid, LogToFun) when is_function(LogToFun) ->
Pid ! {log_to, LogToFun, self()},
receive
{log_to_reply, Res, Pid} ->
Res
end.
log_reader_main(P) ->
put(sname,log_reader),
put(verbosity,trace),
P ! {started, self()},
log_reader(P).
log_reader(P) ->
rp("entry"),
receive
{stop, P} ->
rp("received stop request"),
exit(normal);
{log_to, F, P} ->
rp("received log_to request"),
Res = F(),
rp("done with log_to - sending reply"),
P ! {log_to_reply, Res, self()},
log_reader(P);
ELSE ->
io:format("ERROR:reader - received unknown message: "
"~n ~p~n", [ELSE]),
log_reader(P)
end.
rp(F) ->
rp(F, []).
rp(F, A) ->
io:format(user, "reader [~w] " ++ F ++ "~n", [self()|A]).
%%======================================================================
check_notify() ->
receive
{disk_log, Node, LogName, Info} ->
io:format("disk_log notify: "
"~n Node: ~p"
"~n LogName: ~s"
"~n Info: ~p"
"~n", [Node, LogName, Info]),
check_notify()
after 1000 ->
done
end.
messages() ->
[get_next_request('version-1', "all-rights",
[1,13], 1, 1101),
get_response('version-1', "all-rights",
[1,3,6,1,2,1,1,1,0],
'OCTET STRING', "Erlang SNMP agent",
1, 1101),
get_request('version-1', "all-rights",
[1,3,6,1,2,1,1,1,0], 1, 1102),
get_response('version-1', "all-rights",
[1,3,6,1,2,1,1,1,0],
'OCTET STRING', "Erlang SNMP agent",
1, 1102),
set_request('version-1', "all-rights",
[1,3,6,1,2,1,1,6,0],
'OCTET STRING', "new_value",
1, 1003),
get_response('version-1', "all-rights",
[1,3,6,1,2,1,1,6,0],
'OCTET STRING', "new_value",
1, 1103),
get_bulk_request("all-rights", 1104),
bulk_get_response('version-1', "all-rights",
[48,29,6,8,43,6,1,2,1,1,1,0,4,17,69,114,108,97,
110,103,32,83,78,77,80,32,97,103,101,110,116,
48,7,6,3,43,7,1,130,0], 1104),
inform_request("all-rights", 1105),
get_response('version-1', "all-rights",
[{[1,3,6,1,2,1,1,3,0],
'TimeTicks',
4046,
1},
{[1,3,6,1,6,3,1,1,4,1,0],
'OBJECT IDENTIFIER',
[1,3,6,1,2,1,1,0,1],2}],
1105),
snmpv2_trap("all-rights", 1106),
trap("all-rights")].
get_request(Vsn, Community, Oid, OrgIdx, ReqId) ->
Varbind = #varbind{oid = Oid,
variabletype = 'NULL',
value = 'NULL',
org_index = OrgIdx},
Pdu = #pdu{type = 'get-response',
request_id = ReqId,
error_status = noError,
error_index = 0,
varbinds = [Varbind]},
enc_message(Vsn, Community, Pdu).
get_next_request(Vsn, Community, Oid, OrgIdx, ReqId) ->
Varbind = #varbind{oid = Oid,
variabletype = 'NULL',
value = 'NULL',
org_index = OrgIdx},
Pdu = #pdu{type = 'get-next-request',
request_id = ReqId,
error_status = noError,
error_index = 0,
varbinds = [Varbind]},
enc_message(Vsn, Community, Pdu).
bulk_get_response(Vsn, Community, Bulk, ReqId) ->
Pdu = #pdu{type = 'get-response',
request_id = ReqId,
error_status = noError,
error_index = 0,
varbinds = Bulk},
enc_message(Vsn, Community, Pdu).
get_response(Vsn, Community, VarbindData, ReqId) ->
Varbinds = varbinds(VarbindData, []),
Pdu = #pdu{type = 'get-response',
request_id = ReqId,
error_status = noError,
error_index = 0,
varbinds = Varbinds},
enc_message(Vsn, Community, Pdu).
get_response(Vsn, Community, Oid, Type, Value, OrgIdx, ReqId) ->
Varbind = #varbind{oid = Oid,
variabletype = Type,
value = Value,
org_index = OrgIdx},
Pdu = #pdu{type = 'get-response',
request_id = ReqId,
error_status = noError,
error_index = 0,
varbinds = [Varbind]},
enc_message(Vsn, Community, Pdu).
set_request(Vsn, Community, Oid, Type, Value, OrgIdx, ReqId) ->
Varbind = #varbind{oid = Oid,
variabletype = Type,
value = Value,
org_index = OrgIdx},
Pdu = #pdu{type = 'set-request',
request_id = ReqId,
error_status = noError,
error_index = 0,
varbinds = [Varbind]},
enc_message(Vsn, Community, Pdu).
get_bulk_request(Community, ReqId) ->
Varbinds = [#varbind{oid = [1,3,6,1,2,1,1,1],
variabletype = 'NULL',
value = 'NULL',
org_index = 1},
#varbind{oid = [1,3,7,1],
variabletype = 'NULL',
value = 'NULL',
org_index = 2}],
Pdu = #pdu{type = 'get-bulk-request',
request_id = ReqId,
error_status = 1,
error_index = 1,
varbinds = Varbinds},
enc_message('version-2', Community, Pdu).
inform_request(Community, ReqId) ->
Varbinds = [#varbind{oid = [1,3,6,1,2,1,1,3,0],
variabletype = 'TimeTicks',
value = 4046,
org_index = 1},
#varbind{oid = [1,3,6,1,6,3,1,1,4,1,0],
variabletype = 'OBJECT IDENTIFIER',
value = [1,3,6,1,2,1,1,0,1],
org_index = 2}],
Pdu = #pdu{type = 'inform-request',
request_id = ReqId,
error_status = noError,
error_index = 0,
varbinds = Varbinds},
enc_message('version-2', Community, Pdu).
snmpv2_trap(Community, ReqId) ->
Varbinds = [#varbind{oid = [1,3,6,1,2,1,1,3,0],
variabletype = 'TimeTicks',
value = 3945,
org_index = 1},
#varbind{oid = [1,3,6,1,6,3,1,1,4,1,0],
variabletype = 'OBJECT IDENTIFIER',
value = [1,3,6,1,2,1,11,1],
org_index = 2}],
Pdu = #pdu{type = 'snmpv2-trap',
request_id = ReqId,
error_status = noError,
error_index = 0,
varbinds = Varbinds},
enc_message('version-2', Community, Pdu).
% report() ->
% Varbind = #varbind{oid = ?snmpUnknownPDUHandlers,
% variabletype = 'Counter32',
% value = 111},
% Pdu = #pdu{type = report,
% request_id = 991199,
% error_status = noError,
% error_index = 0,
% varbinds = [Varbind]},
% enc_message('version-3', Community, Pdu).
trap(Community) ->
Enterp = [1,3,6,1,2,1,1],
Oid = [1,3,6,1,2,1,1,4,0],
Type = 'OCTET STRING',
Value = "{mbj,eklas}@erlang.ericsson.se",
SysUpTime = 4379,
Spec = 1,
Generic = 6,
AgentIp = [127,0,0,1],
trap(Community, Enterp, Oid, Type, Value, SysUpTime,
Spec, Generic, AgentIp, 1).
%% V1 trap
trap(Community, Enterp, Oid, Type, Value, SysUpTime,
Spec, Generic, AgentIp, OrgIdx) ->
Varbind = #varbind{oid = Oid,
variabletype = Type,
value = Value,
org_index = OrgIdx},
Trap = #trappdu{enterprise = Enterp,
agent_addr = AgentIp,
generic_trap = Generic,
specific_trap = Spec,
time_stamp = SysUpTime,
varbinds = [Varbind]},
enc_message('version-1', Community, Trap).
varbinds([], Varbinds) ->
lists:reverse(Varbinds);
varbinds([{Oid, Type, Value, Idx}|T], Acc) ->
Varbind = #varbind{oid = Oid,
variabletype = Type,
value = Value,
org_index = Idx},
varbinds(T, [Varbind|Acc]).
% enc_message('version-3' = Vsn, Community, Pdu) ->
% ScopedPDU = #scopedPdu{contextEngineID = ContextEngineID,
% contextName = ContextName,
% data = Pdu},
% NUsmSecParams =
% UsmSecParams#usmSecurityParameters{msgAuthenticationParameters =
% AuthParams},
% SecBytes = snmp_pdus:enc_usm_security_parameters(NUsmSecParams),
% V3Hdr = #v3_hdr{msgID = MsgID,
% msgMaxSize = AgentMS,
% msgFlags = snmp_misc:mk_msg_flags(Type, SecLevel),
% msgSecurityParameters = SecBytes
% msgSecurityModel = MsgSecurityModel},
% Msg = #message{version = Vsn, vsn_hdr = V3Hdr,
% data = ScopedPDUBytes},
% snmp_pdus:enc_message_only(Message2);
enc_message(Vsn, Community, Pdu) ->
PduBytes = snmp_pdus:enc_pdu(Pdu),
Msg = #message{version = Vsn,
vsn_hdr = Community,
data = PduBytes},
list_to_binary(snmp_pdus:enc_message_only(Msg)).
display_info(Info) ->
{SinceOpened, SinceLastInfo} = get_info(no_overflows, Info, {-1,-1}),
CurrentFile = get_info(current_file, Info, -1),
NoItems = get_info(no_current_items, Info, -1),
NoBytes = get_info(no_current_bytes, Info, -1),
io:format(user, "Disk log info: "
"~n Number of filled since opened: ~p"
"~n Number of filled since last info: ~p"
"~n Current file: ~p"
"~n Number of items in file: ~p"
"~n Number of bytes in file: ~p"
"~n",
[SinceOpened, SinceLastInfo, CurrentFile, NoItems, NoBytes]).
get_info(Key, Info, Def) ->
case lists:keysearch(Key, 1, Info) of
{value, {Key, Val}} ->
Val;
false ->
Def
end.
join(D, F) ->
filename:join(D, F).
p(Case) ->
io:format(user, "test case: ~w~n", [Case]).
