有关如何使用PHPStorm设置XDebug的指南.
版本:
我正在尝试使用Cygwin在Windows 7 x64上使用makefile.我输入"make",我得到的错误是:
make:*未指定目标且未找到makefile.停止.
Makefile文件:
CC = g++
CFLAGS = -g -Wall -pedantic
HDRS = node.h stack.h
SRCS = stack.cpp main.cpp
OBJS = $(patsubst %.cpp, %.o, $(SRCS))
proj3:$(OBJS)
$(CC) $(CFLAGS) -o $@ $(OBJS)
%.o: %.cpp $(HDRS)
$(CC) $(CFLAGS) -c $<
.PHONY:clean
clean:
-rm -f *.o *~ *core* proj3
没有文件丢失.
我正在本地计算机上用Tsung测试eJabberd服务器.这是我的配置文件.一切正常,正常运行.
<?xml version="1.0"?>
<!DOCTYPE tsung SYSTEM "/usr/local/share/tsung/tsung-1.0.dtd">
<tsung loglevel="notice" dumptraffic="false" version="1.0">
<clients>
<client host="localhost" maxusers="28000" use_controller_vm="true">
</client>
</clients>
<servers>
<server host='127.0.0.1' port='5222' type='tcp'/>
</servers>
<monitoring>
<monitor host="localhost" type="erlang"/>
</monitoring>
<!-- register 15000 users in less than 15 minutes -->
<load>
<arrivalphase phase="1" duration="5" unit="minute">
<users maxnumber="15000" interarrival="0.0025" unit="second"></users>
</arrivalphase>
</load>
<options>
<option type="ts_jabber" name="global_number" value="15000"></option>
<option type="ts_jabber" name="userid_max" value="15000"></option>
<option type="ts_jabber" name="domain" value="localhost"></option>
<option type="ts_jabber" name="username" value="test"></option>
<option type="ts_jabber" name="passwd" value="password"></option>
</options>
<sessions>
<session probability="100" name="jabber-example" type="ts_jabber">
<request> <jabber type="connect" …我需要删除列表中的最后一个元素.我在shell中运行此代码.
Erlang R16B03(erts-5.10.4)[source] [64-bit] [smp:4:4] [async-threads:10] [kernel-poll:false]
erl + pc unicode
ColumnListWithCommas = [<<"username">>,<<",">>,<<"password">>,<<",">>,
<<"created_at">>,<<",">>,<<"id">>,<<",">>,<<"email_hash">>,
<<",">>,<<"status">>,<<",">>,<<"mess_count">>,<<",">>].
lists:droplast(ColumnListWithCommas).
** exception error: undefined function lists:droplast/1
我已经使用 Google Places API 开发了 AutoCompleteTextView。当用户输入地址时，我正在对 API 进行网络调用。我试图模拟崩溃，但请求在我能够更改配置之前完成。
public class PlacesAutoCompleteAdapter extends ArrayAdapter<Prediction> implements Filterable {
private List<Prediction> resultList;
public PlacesAutoCompleteAdapter(Context context, int textViewResourceId) {
super(context, textViewResourceId);
}
@Override
public int getCount() {
return resultList.size();
}
@Override
public Prediction getItem(int index) {
return resultList.get(index);
}
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults filterResults = new FilterResults();
if (constraint != null) {
ShlepenApp.getGoogleRestClient().getPlaceList(GoogleService.API_KEY, constraint.toString(), new Callback<GooglePlacesListResponse>() {
@Override
public void …我有这段代码获取sessionid,使其成为一个字符串,然后创建一个带密钥的集合,例如{{1401,873063,143916},<0.16443.0>}在redis中.我正在尝试{用字母"a" 替换此会话中的字符.
OldSessionID= io_lib:format("~p",[OldSession#session.sid]),
StringForOldSessionID = lists:flatten(OldSessionID),
ejabberd_redis:cmd([["SADD", StringForSessionID, StringForUserInfo]]);
我试过这个:
re:replace(N,"{","a",[global,{return,list}]).
这是一个很好的方法吗？我读到Erlang中的regexp并不是一种建议的做事方式.
有关如何使用VSCode在Vagrant(Homestead)上设置XDebug的指南
版本:
我已经阅读了关于负载测试eJabberd和MongooseIM的链接.作者提到调整Erlang VM Link.
调整:
+K true
+A 5
+P 10000000
-env ERL_MAX_PORTS 1000000
-env ERL_FULLSWEEP_AFTER 2
-env ERL_MAX_ETS_TABLES 100000
我尝试使用它们,就像erl +K true在此链接中指定的那样.
问题:如何调整Erlang VM？如何检查设置是否已设置？更改设置后是否需要重启eJabberd？
我无法理解这段代码:
{<<"block">>, Els} ->
JIDs = parse_blocklist_items(Els, []),
process_blocklist_block(LUser, LServer, JIDs);
#1 parse_blocklist_items([], JIDs) -> JIDs;
#2 parse_blocklist_items([#xmlel{name = <<"item">>,
attrs = Attrs}
| Els],
JIDs) ->
case xml:get_attr(<<"jid">>, Attrs) of
{value, JID1} ->
JID = jlib:jid_tolower(jlib:binary_to_jid(JID1)),
parse_blocklist_items(Els, [JID | JIDs]);
false -> parse_blocklist_items(Els, JIDs)
end;
#3 parse_blocklist_items([_ | Els], JIDs) ->
parse_blocklist_items(Els, JIDs).
我不确定首先调用哪个函数.
Els是空的,这意味着首先调用#3,然后调用#2,然后调用#3.对？为什么我们需要功能#3？如果#2已经返回JID,#3会有什么不同？我迷路了.
我有这个XML:
<message from="adminhash@localhost/xmpphp2" to="queue@springfruitdev"
type="service" id="service1"><body>JSON</body></message>
我想在标签之间提取文本.
以下是它在erlang中的表示方式:
{xmlel,<<"message">>,
[{<<"xml:lang">>,<<>>},
{<<"from">>,<<"adminhash@localhost/xmpphp2">>},
{<<"to">>,<<"queue@springfruitdev">>},
{<<"type">>,<<"service">>},
{<<"id">>,<<"service1">>}],
[{xmlel,<<"body">>,[],[{xmlcdata,<<"JSON">>}]}]}}
我通过模式匹配尝试了什么:
element(1,list_to_tuple(element(4,element(3,X)))).
结果:
{xmlel,<<"body">>,[],[{xmlcdata,<<"JSON">>}]}
首先,我能以更优雅的方式提取xmlcdata吗？