%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2003-2012. 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%
%%
%%% @doc Common Test Framework Utilities.
%%%
%%% <p>This is a support module for the Common Test Framework. It
%%% implements the process ct_util_server which acts like a data
%%% holder for suite, configuration and connection data.</p>
%%%
-module(ct_util).
-export([start/0,start/1,start/2,stop/1,update_last_run_index/0]).
-export([register_connection/4,unregister_connection/1,
does_connection_exist/3,get_key_from_name/1]).
-export([close_connections/0]).
-export([save_suite_data/3, save_suite_data/2,
save_suite_data_async/3, save_suite_data_async/2,
read_suite_data/1,
delete_suite_data/0, delete_suite_data/1, match_delete_suite_data/1,
delete_testdata/0, delete_testdata/1, set_testdata/1, get_testdata/1,
set_testdata_async/1, update_testdata/2]).
-export([override_silence_all_connections/0, override_silence_connections/1,
get_overridden_silenced_connections/0,
delete_overridden_silenced_connections/0,
silence_all_connections/0, silence_connections/1, is_silenced/1,
reset_silent_connections/0]).
-export([get_mode/0, create_table/3, read_opts/0]).
-export([set_cwd/1, reset_cwd/0, get_start_dir/0]).
-export([parse_table/1]).
-export([listenv/1]).
-export([get_target_name/1, get_connections/2]).
-export([is_test_dir/1, get_testdir/2]).
-export([kill_attached/2, get_attached/1, ct_make_ref/0]).
-export([warn_duplicates/1]).
-export([get_profile_data/0, get_profile_data/1,
get_profile_data/2, open_url/3]).
-include("ct_event.hrl").
-include("ct_util.hrl").
-record(suite_data, {key,name,value}).
%%%-----------------------------------------------------------------
%%% @spec start(Mode) -> Pid | exit(Error)
%%% Mode = normal | interactive
%%% Pid = pid()
%%%
%%% @doc Start start the ct_util_server process
%%% (tool-internal use only).
%%%
%%% <p>This function is called from ct_run.erl. It starts and initiates
%%% the <code>ct_util_server</code></p>
%%%
%%% <p>Returns the process identity of the
%%% <code>ct_util_server</code>.</p>
%%%
%%% @see ct
start() ->
start(normal,".").
start(LogDir) when is_list(LogDir) ->
start(normal,LogDir);
start(Mode) ->
start(Mode,".").
start(Mode,LogDir) ->
case whereis(ct_util_server) of
undefined ->
S = self(),
Pid = spawn_link(fun() -> do_start(S,Mode,LogDir) end),
receive
{Pid,started} -> Pid;
{Pid,Error} -> exit(Error);
{_Ref,{Pid,Error}} -> exit(Error)
end;
Pid ->
case get_mode() of
interactive when Mode==interactive ->
Pid;
interactive ->
{error,interactive_mode};
_OtherMode ->
Pid
end
end.
do_start(Parent,Mode,LogDir) ->
process_flag(trap_exit,true),
register(ct_util_server,self()),
create_table(?conn_table,#conn.handle),
create_table(?board_table,2),
create_table(?suite_table,#suite_data.key),
{ok,StartDir} = file:get_cwd(),
case file:set_cwd(LogDir) of
ok -> ok;
E -> exit(E)
end,
DoExit = fun(Reason) -> file:set_cwd(StartDir), exit(Reason) end,
Opts = case read_opts() of
{ok,Opts1} ->
Opts1;
Error ->
Parent ! {self(),Error},
DoExit(Error)
end,
%% start an event manager (if not already started by master)
case ct_event:start_link() of
{error,{already_started,_}} ->
ok;
_ ->
case whereis(vts) of
undefined ->
ct_event:add_handler();
VtsPid ->
ct_event:add_handler([{vts,VtsPid}])
end
end,
%% start ct_config server
try ct_config:start(Mode) of
_ -> ok
catch
_Class:CfgError ->
DoExit(CfgError)
end,
%% add user event handlers
case lists:keysearch(event_handler,1,Opts) of
{value,{_,Handlers}} ->
Add = fun({H,Args}) ->
case catch gen_event:add_handler(?CT_EVMGR_REF,H,Args) of
ok -> ok;
{'EXIT',Why} -> DoExit(Why);
Other -> DoExit({event_handler,Other})
end
end,
case catch lists:foreach(Add,Handlers) of
{'EXIT',Reason} ->
Parent ! {self(),Reason};
_ ->
ok
end;
false ->
ok
end,
{StartTime,TestLogDir} = ct_logs:init(Mode),
ct_event:notify(#event{name=test_start,
node=node(),
data={StartTime,
lists:flatten(TestLogDir)}}),
%% Initialize ct_hooks
try ct_hooks:init(Opts) of
ok ->
Parent ! {self(),started};
{fail,CTHReason} ->
ct_logs:tc_print('Suite Callback',CTHReason,[]),
self() ! {{stop,{self(),{user_error,CTHReason}}},
{Parent,make_ref()}}
catch
_:CTHReason ->
ct_logs:tc_print('Suite Callback',CTHReason,[]),
self() ! {{stop,{self(),{user_error,CTHReason}}},
{Parent,make_ref()}}
end,
loop(Mode,[],StartDir).
create_table(TableName,KeyPos) ->
create_table(TableName,set,KeyPos).
create_table(TableName,Type,KeyPos) ->
catch ets:delete(TableName),
ets:new(TableName,[Type,named_table,public,{keypos,KeyPos}]).
read_opts() ->
case file:consult(ct_run:variables_file_name("./")) of
{ok,Opts} ->
{ok,Opts};
{error,enoent} ->
{error,not_installed};
Error ->
{error,{bad_installation,Error}}
end.
save_suite_data(Key, Value) ->
call({save_suite_data, {Key, undefined, Value}}).
save_suite_data(Key, Name, Value) ->
call({save_suite_data, {Key, Name, Value}}).
save_suite_data_async(Key, Value) ->
save_suite_data_async(Key, undefined, Value).
save_suite_data_async(Key, Name, Value) ->
cast({save_suite_data, {Key, Name, Value}}).
read_suite_data(Key) ->
call({read_suite_data, Key}).
delete_suite_data() ->
call({delete_suite_data, all}).
delete_suite_data(Key) ->
call({delete_suite_data, Key}).
match_delete_suite_data(KeyPat) ->
call({match_delete_suite_data, KeyPat}).
delete_testdata() ->
call(delete_testdata).
delete_testdata(Key) ->
call({delete_testdata, Key}).
update_testdata(Key, Fun) ->
call({update_testdata, Key, Fun}).
set_testdata(TestData) ->
call({set_testdata, TestData}).
set_testdata_async(TestData) ->
cast({set_testdata, TestData}).
get_testdata(Key) ->
call({get_testdata, Key}).
set_cwd(Dir) ->
call({set_cwd,Dir}).
reset_cwd() ->
call(reset_cwd).
get_start_dir() ->
call(get_start_dir).
loop(Mode,TestData,StartDir) ->
receive
{update_last_run_index,From} ->
ct_logs:make_last_run_index(),
return(From,ok),
loop(Mode,TestData,StartDir);
{{save_suite_data,{Key,Name,Value}},From} ->
ets:insert(?suite_table, #suite_data{key=Key,
name=Name,
value=Value}),
return(From,ok),
loop(Mode,TestData,StartDir);
{{read_suite_data,Key},From} ->
case ets:lookup(?suite_table, Key) of
[#suite_data{key=Key,name=undefined,value=Value}] ->
return(From,Value);
[#suite_data{key=Key,name=Name,value=Value}] ->
return(From,{Name,Value});
_ ->
return(From,undefined)
end,
loop(Mode,TestData,StartDir);
{{delete_suite_data,Key},From} ->
if Key == all ->
ets:delete_all_objects(?suite_table);
true ->
ets:delete(?suite_table, Key)
end,
return(From,ok),
loop(Mode,TestData,StartDir);
{{match_delete_suite_data,KeyPat},From} ->
ets:match_delete(?suite_table, #suite_data{key=KeyPat,
name='_',
value='_'}),
return(From,ok),
loop(Mode,TestData,StartDir);
{delete_testdata,From} ->
return(From,ok),
loop(From,[],StartDir);
{{delete_testdata,Key},From} ->
TestData1 = lists:keydelete(Key,1,TestData),
return(From,ok),
loop(From,TestData1,StartDir);
{{set_testdata,New = {Key,_Val}},From} ->
TestData1 = lists:keydelete(Key,1,TestData),
return(From,ok),
loop(Mode,[New|TestData1],StartDir);
{{get_testdata, all}, From} ->
return(From, TestData),
loop(From, TestData, StartDir);
{{get_testdata,Key},From} ->
case lists:keysearch(Key,1,TestData) of
{value,{Key,Val}} ->
return(From,Val);
_ ->
return(From,undefined)
end,
loop(From,TestData,StartDir);
{{update_testdata,Key,Fun},From} ->
TestData1 =
case lists:keysearch(Key,1,TestData) of
{value,{Key,Val}} ->
NewVal = Fun(Val),
return(From,NewVal),
[{Key,NewVal}|lists:keydelete(Key,1,TestData)];
_ ->
return(From,undefined),
TestData
end,
loop(From,TestData1,StartDir);
{{set_cwd,Dir},From} ->
return(From,file:set_cwd(Dir)),
loop(From,TestData,StartDir);
{reset_cwd,From} ->
return(From,file:set_cwd(StartDir)),
loop(From,TestData,StartDir);
{get_start_dir,From} ->
return(From,StartDir),
loop(From,TestData,StartDir);
{{stop,Info},From} ->
Time = calendar:local_time(),
ct_event:sync_notify(#event{name=test_done,
node=node(),
data=Time}),
Callbacks = ets:lookup_element(?suite_table,
ct_hooks,
#suite_data.value),
ct_hooks:terminate(Callbacks),
close_connections(ets:tab2list(?conn_table)),
ets:delete(?conn_table),
ets:delete(?board_table),
ets:delete(?suite_table),
ct_logs:close(Info, StartDir),
ct_event:stop(),
ct_config:stop(),
file:set_cwd(StartDir),
return(From, Info);
{Ref, _Msg} when is_reference(Ref) ->
%% This clause is used when doing cast operations.
loop(Mode,TestData,StartDir);
{get_mode,From} ->
return(From,Mode),
loop(Mode,TestData,StartDir);
{'EXIT',_Pid,normal} ->
loop(Mode,TestData,StartDir);
{'EXIT',Pid,Reason} ->
case ets:lookup(?conn_table,Pid) of
[#conn{address=A,callback=CB}] ->
%% A connection crashed - remove the connection but don't die
ct_logs:tc_log_async(ct_error_notify,
"Connection process died: "
"Pid: ~p, Address: ~p, Callback: ~p\n"
"Reason: ~p\n\n",
[Pid,A,CB,Reason]),
catch CB:close(Pid),
loop(Mode,TestData,StartDir);
_ ->
%% Let process crash in case of error, this shouldn't happen!
io:format("\n\nct_util_server got EXIT from ~p: ~p\n\n",
[Pid,Reason]),
file:set_cwd(StartDir),
exit(Reason)
end
end.
close_connections([#conn{handle=Handle,callback=CB}|Conns]) ->
CB:close(Handle),
close_connections(Conns);
close_connections([]) ->
ok.
get_key_from_name(Name)->
ct_config:get_key_from_name(Name).
%%%-----------------------------------------------------------------
%%% @spec register_connection(TargetName,Address,Callback,Handle) ->
%%% ok | {error,Reason}
%%% TargetName = ct:target_name()
%%% Address = term()
%%% Callback = atom()
%%% Handle = term
%%%
%%% @doc Register a new connection (tool-internal use only).
%%%
%%% <p>This function can be called when a new connection is
%%% established. The connection data is stored in the connection
%%% table, and ct_util will close all registered connections when the
%%% test is finished by calling <code>Callback:close/1</code>.</p>
register_connection(TargetName,Address,Callback,Handle) ->
TargetRef =
case ct_config:get_ref_from_name(TargetName) of
{ok,Ref} ->
Ref;
_ ->
%% no config name associated with connection,
%% use handle for identification instead
Handle
end,
ets:insert(?conn_table,#conn{handle=Handle,
targetref=TargetRef,
address=Address,
callback=Callback}),
ok.
%%%-----------------------------------------------------------------
%%% @spec unregister_connection(Handle) -> ok
%%% Handle = term
%%%
%%% @doc Unregister a connection (tool-internal use only).
%%%
%%% <p>This function should be called when a registered connection is
%%% closed. It removes the connection data from the connection
%%% table.</p>
unregister_connection(Handle) ->
ets:delete(?conn_table,Handle),
ok.
%%%-----------------------------------------------------------------
%%% @spec does_connection_exist(TargetName,Address,Callback) ->
%%% {ok,Handle} | false
%%% TargetName = ct:target_name()
%%% Address = address
%%% Callback = atom()
%%% Handle = term()
%%%
%%% @doc Check if a connection already exists.
does_connection_exist(TargetName,Address,Callback) ->
case ct_config:get_ref_from_name(TargetName) of
{ok,TargetRef} ->
case ets:select(?conn_table,[{#conn{handle='$1',
targetref=TargetRef,
address=Address,
callback=Callback},
[],
['$1']}]) of
[Handle] ->
{ok,Handle};
[] ->
false
end;
_ ->
false
end.
%%%-----------------------------------------------------------------
%%% @spec get_connections(TargetName,Callback) ->
%%% {ok,Connections} | {error,Reason}
%%% TargetName = ct:target_name()
%%% Callback = atom()
%%% Connections = [Connection]
%%% Connection = {Handle,Address}
%%% Handle = term()
%%% Address = term()
%%%
%%% @doc Return all connections for the <code>Callback</code> on the
%%% given target (<code>TargetName</code>).
get_connections(TargetName,Callback) ->
case ct_config:get_ref_from_name(TargetName) of
{ok,Ref} ->
{ok,ets:select(?conn_table,[{#conn{handle='$1',
address='$2',
targetref=Ref,
callback=Callback},
[],
[{{'$1','$2'}}]}])};
Error ->
Error
end.
%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:get_target_name/1
get_target_name(ConnPid) ->
case ets:select(?conn_table,[{#conn{handle=ConnPid,targetref='$1',_='_'},
[],
['$1']}]) of
[TargetRef] ->
ct_config:get_name_from_ref(TargetRef);
[] ->
{error,{unknown_connection,ConnPid}}
end.
%%%-----------------------------------------------------------------
%%% @spec close_connections() -> ok
%%%
%%% @doc Close all open connections.
close_connections() ->
close_connections(ets:tab2list(?conn_table)),
ok.
%%%-----------------------------------------------------------------
%%% @spec
%%%
%%% @doc
override_silence_all_connections() ->
Protocols = [telnet,ftp,rpc,snmp],
override_silence_connections(Protocols),
Protocols.
override_silence_connections(Conns) when is_list(Conns) ->
Conns1 = lists:map(fun({C,B}) -> {C,B};
(C) -> {C,true}
end, Conns),
set_testdata({override_silent_connections,Conns1}).
get_overridden_silenced_connections() ->
case get_testdata(override_silent_connections) of
{error,_} ->
undefined;
Conns -> % list() or undefined
Conns
end.
delete_overridden_silenced_connections() ->
delete_testdata(override_silent_connections).
silence_all_connections() ->
Protocols = [telnet,ftp,rpc,snmp],
silence_connections(Protocols),
Protocols.
silence_connections(Conn) when is_tuple(Conn) ->
silence_connections([Conn]);
silence_connections(Conn) when is_atom(Conn) ->
silence_connections([{Conn,true}]);
silence_connections(Conns) when is_list(Conns) ->
Conns1 = lists:map(fun({C,B}) -> {C,B};
(C) -> {C,true}
end, Conns),
set_testdata({silent_connections,Conns1}).
is_silenced(Conn) ->
case get_testdata(silent_connections) of
Conns when is_list(Conns) ->
case lists:keysearch(Conn,1,Conns) of
{value,{Conn,true}} ->
true;
_ ->
false
end;
_ ->
false
end.
reset_silent_connections() ->
delete_testdata(silent_connections).
%%%-----------------------------------------------------------------
%%% @spec stop(Info) -> ok
%%%
%%% @doc Stop the ct_util_server and close all existing connections
%%% (tool-internal use only).
%%%
%%% @see ct
stop(Info) ->
case whereis(ct_util_server) of
undefined -> ok;
_ -> call({stop,Info})
end.
%%%-----------------------------------------------------------------
%%% @spec update_last_run_index() -> ok
%%%
%%% @doc Update <code>ct_run.<timestamp>/index.html</code>
%%% (tool-internal use only).
update_last_run_index() ->
call(update_last_run_index).
%%%-----------------------------------------------------------------
%%% @spec get_mode() -> Mode
%%% Mode = normal | interactive
%%%
%%% @doc Return the current mode of the ct_util_server
%%% (tool-internal use only).
get_mode() ->
call(get_mode).
%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:listenv/1
listenv(Telnet) ->
case ct_telnet:send(Telnet,"listenv") of
ok ->
{ok,Data,_} = ct_telnet:expect(Telnet,
["(^.+)=(.*$)"],
[{timeout,seconds(3)},
repeat]),
{ok,[{Name,Val} || [_,Name,Val] <- Data]};
{error,Reason} ->
{error,{could_not_send_command,Telnet,"listenv",Reason}}
end.
%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:parse_table/1
parse_table(Data) ->
{Heading, Rest} = get_headings(Data),
Lines = parse_row(Rest,[],size(Heading)),
{Heading,Lines}.
get_headings(["|" ++ Headings | Rest]) ->
{remove_space(string:tokens(Headings, "|"),[]), Rest};
get_headings([_ | Rest]) ->
get_headings(Rest);
get_headings([]) ->
{{},[]}.
parse_row(["|" ++ _ = Row | T], Rows, NumCols) when NumCols > 1 ->
case string:tokens(Row, "|") of
Values when length(Values) =:= NumCols ->
parse_row(T,[remove_space(Values,[])|Rows], NumCols);
Values when length(Values) < NumCols ->
parse_row([Row ++"\n"++ hd(T) | tl(T)], Rows, NumCols)
end;
parse_row(["|" ++ _ = Row | T], Rows, 1 = NumCols) ->
case string:rchr(Row, $|) of
1 ->
parse_row([Row ++"\n"++hd(T) | tl(T)], Rows, NumCols);
_Else ->
parse_row(T, [remove_space(string:tokens(Row,"|"),[])|Rows],
NumCols)
end;
parse_row([_Skip | T], Rows, NumCols) ->
parse_row(T, Rows, NumCols);
parse_row([], Rows, _NumCols) ->
lists:reverse(Rows).
remove_space([Str|Rest],Acc) ->
remove_space(Rest,[string:strip(string:strip(Str),both,$')|Acc]);
remove_space([],Acc) ->
list_to_tuple(lists:reverse(Acc)).
%%%-----------------------------------------------------------------
%%% @spec
%%%
%%% @doc
is_test_dir(Dir) ->
lists:last(string:tokens(filename:basename(Dir), "_")) == "test".
%%%-----------------------------------------------------------------
%%% @spec
%%%
%%% @doc
get_testdir(Dir, all) ->
Abs = abs_name(Dir),
case is_test_dir(Abs) of
true ->
Abs;
false ->
AbsTest = filename:join(Abs, "test"),
case filelib:is_dir(AbsTest) of
true -> AbsTest;
false -> Abs
end
end;
get_testdir(Dir, [Suite | _]) when is_atom(Suite) ->
get_testdir(Dir, atom_to_list(Suite));
get_testdir(Dir, [Suite | _]) when is_list(Suite) ->
get_testdir(Dir, Suite);
get_testdir(Dir, Suite) when is_atom(Suite) ->
get_testdir(Dir, atom_to_list(Suite));
get_testdir(Dir, Suite) when is_list(Suite) ->
Abs = abs_name(Dir),
case is_test_dir(Abs) of
true ->
Abs;
false ->
AbsTest = filename:join(Abs, "test"),
Mod = case filename:extension(Suite) of
".erl" -> Suite;
_ -> Suite ++ ".erl"
end,
case filelib:is_file(filename:join(AbsTest, Mod)) of
true -> AbsTest;
false -> Abs
end
end;
get_testdir(Dir, _) ->
get_testdir(Dir, all).
%%%-----------------------------------------------------------------
%%% @spec
%%%
%%% @doc
get_attached(TCPid) ->
case dbg_iserver:safe_call({get_attpid,TCPid}) of
{ok,AttPid} when is_pid(AttPid) ->
AttPid;
_ ->
undefined
end.
%%%-----------------------------------------------------------------
%%% @spec
%%%
%%% @doc
kill_attached(undefined,_AttPid) ->
ok;
kill_attached(_TCPid,undefined) ->
ok;
kill_attached(TCPid,AttPid) ->
case process_info(TCPid) of
undefined ->
exit(AttPid,kill);
_ ->
ok
end.
%%%-----------------------------------------------------------------
%%% @spec
%%%
%%% @doc
warn_duplicates(Suites) ->
Warn =
fun(Mod) ->
case catch apply(Mod,sequences,[]) of
{'EXIT',_} ->
ok;
[] ->
ok;
_ ->
io:format(user,"~nWARNING! Deprecated function: ~w:sequences/0.~n"
" Use group with sequence property instead.~n",[Mod])
end
end,
lists:foreach(Warn, Suites),
ok.
%%%-----------------------------------------------------------------
%%% @spec
%%%
%%% @doc
get_profile_data() ->
get_profile_data(all).
get_profile_data(KeyOrStartDir) ->
if is_atom(KeyOrStartDir) ->
get_profile_data(KeyOrStartDir, get_start_dir());
is_list(KeyOrStartDir) ->
get_profile_data(all, KeyOrStartDir)
end.
get_profile_data(Key, StartDir) ->
Profile = case application:get_env(common_test, profile) of
{ok,undefined} -> default;
{ok,Prof} -> Prof;
_ -> default
end,
get_profile_data(Profile, Key, StartDir).
get_profile_data(Profile, Key, StartDir) ->
File = case Profile of
default ->
?ct_profile_file;
_ when is_list(Profile) ->
?ct_profile_file ++ "." ++ Profile;
_ when is_atom(Profile) ->
?ct_profile_file ++ "." ++ atom_to_list(Profile)
end,
FullNameWD = filename:join(StartDir, File),
{WhichFile,Result} =
case file:consult(FullNameWD) of
{error,enoent} ->
case init:get_argument(home) of
{ok,[[HomeDir]]} ->
FullNameHome = filename:join(HomeDir, File),
{FullNameHome,file:consult(FullNameHome)};
_ ->
{File,{error,enoent}}
end;
Consulted ->
{FullNameWD,Consulted}
end,
case Result of
{error,enoent} when Profile /= default ->
io:format(user, "~nERROR! Missing profile file ~p~n", [File]),
undefined;
{error,enoent} when Profile == default ->
undefined;
{error,Reason} ->
io:format(user,"~nERROR! Error in profile file ~p: ~p~n",
[WhichFile,Reason]),
undefined;
{ok,Data} ->
Data1 = case Data of
[List] when is_list(List) ->
List;
_ when is_list(Data) ->
Data;
_ ->
io:format(user,
"~nERROR! Invalid profile data in ~p~n",
[WhichFile]),
[]
end,
if Key == all ->
Data1;
true ->
proplists:get_value(Key, Data)
end
end.
%%%-----------------------------------------------------------------
%%% Internal functions
call(Msg) ->
case whereis(ct_util_server) of
undefined ->
{error,ct_util_server_not_running};
Pid ->
MRef = erlang:monitor(process, Pid),
Ref = make_ref(),
ct_util_server ! {Msg,{self(),Ref}},
receive
{Ref, Result} ->
erlang:demonitor(MRef, [flush]),
Result;
{'DOWN',MRef,process,_,Reason} ->
{error,{ct_util_server_down,Reason}}
end
end.
return({To,Ref},Result) ->
To ! {Ref, Result}.
cast(Msg) ->
ct_util_server ! {Msg, {ct_util_server, make_ref()}}.
seconds(T) ->
test_server:seconds(T).
ct_make_ref() ->
Pid = case whereis(ct_make_ref) of
undefined ->
spawn_link(fun() -> ct_make_ref_init() end);
P ->
P
end,
Pid ! {self(),ref_req},
receive
{Pid,Ref} -> Ref
end.
ct_make_ref_init() ->
register(ct_make_ref,self()),
ct_make_ref_loop(0).
ct_make_ref_loop(N) ->
receive
{From,ref_req} ->
From ! {self(),N},
ct_make_ref_loop(N+1)
end.
abs_name(Dir0) ->
Abs = filename:absname(Dir0),
Dir = case lists:reverse(Abs) of
[$/|Rest] -> lists:reverse(Rest);
_ -> Abs
end,
abs_name1(Dir,[]).
abs_name1([Drv,$:,$/],Acc) ->
Split = [[Drv,$:,$/]|Acc],
abs_name2(Split,[]);
abs_name1("/",Acc) ->
Split = ["/"|Acc],
abs_name2(Split,[]);
abs_name1(Dir,Acc) ->
abs_name1(filename:dirname(Dir),[filename:basename(Dir)|Acc]).
abs_name2([".."|T],[_|Acc]) ->
abs_name2(T,Acc);
abs_name2(["."|T],Acc) ->
abs_name2(T,Acc);
abs_name2([H|T],Acc) ->
abs_name2(T,[H|Acc]);
abs_name2([],Acc) ->
filename:join(lists:reverse(Acc)).
open_url(iexplore, Args, URL) ->
{ok,R} = win32reg:open([read]),
ok = win32reg:change_key(R,"applications\\iexplore.exe\\shell\\open\\command"),
case win32reg:values(R) of
{ok, Paths} ->
Path = proplists:get_value(default, Paths),
[Cmd | _] = string:tokens(Path, "%"),
Cmd1 = Cmd ++ " " ++ Args ++ " " ++ URL,
io:format(user, "~nOpening ~s with command:~n ~s~n", [URL,Cmd1]),
open_port({spawn,Cmd1}, []);
_ ->
io:format("~nNo path to iexplore.exe~n",[])
end,
win32reg:close(R),
ok;
open_url(Prog, Args, URL) ->
ProgStr = if is_atom(Prog) -> atom_to_list(Prog);
is_list(Prog) -> Prog
end,
Cmd = ProgStr ++ " " ++ Args ++ " " ++ URL,
io:format(user, "~nOpening ~s with command:~n ~s~n", [URL,Cmd]),
open_port({spawn,Cmd},[]),
ok.
