我刚刚安装了OS,并尝试在python2.7.x虚拟环境中安装gevent。这就是我得到的。看上去和gcc有关。这是回溯:
Building wheels for collected packages: gevent
Running setup.py bdist_wheel for gevent
Complete output from command /Users/admin/pyenvs/plgrnd/bin/python -c "import setuptools;__file__='/private/var/folders/m8/xt5420594cn8zb
我知道这个问题在堆栈溢出(和其他站点)上有很多答案,但它们似乎都不适合我。这是问题产生的原因。当我试图运行服务器时,会弹出以下错误:
Could not find nio4r-1.2.1 in any of the sources
因此,我运行了bundle安装,它抛出了这个错误:
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
Make sure that `gem install nio4r -v '1.2.1' --source 'https://rubygems.org/
我是蟒蛇新手。我在Mac OS上的Pycharm中打开了一个现有项目,得到以下错误:
$ brew install pip
Error: No available formula with the name "pip"
pip is part of the python formula:
brew install python
$ brew install python3
Error: python 3.7.2_1 is already installed
To upgrade to 3.7.2_2, run `brew upgrade python`
$
最近,为了简化代码,我尝试用libdbus类型和libevent类型包装std::unique_ptr和自定义删除器,但是这些库有一个错误:
/opt/cross/armv7hl-meego-linux-gnueabi/include/c++/4.8.3/bits/unique_ptr.h:65:22: error: invalid application of 'sizeof' to incomplete type 'sockets::libev::event_base'
static_assert(sizeof(_Tp)>0,
我得到了
dpkg: error: parsing file '/var/lib/dpkg/status' near line 14 package 'python-pkg-resources':
file details field `Size' not allowed in status file
E: Sub-process /usr/bin/dpkg returned an error code (2)
当我试图安装libev4时。我跑
sudo apt-get install libev4
请指点
在libev中,我初始化了io观察器以捕获事件,该事件导致在某些缓存中存储某些值。我有另一个计时器观察器,它每10秒运行一次,读取缓存值。在这种情况下,我认为存在竞争条件。我是否需要在两个不同的libev监视器或libev句柄中使用lock。
例如:
TCP_CACHE_TIMEOUT = g_hash_table_new_full(g_str_hash, g_int_equal, key_destroy_cb, value_destroy_timeoutcb);
zlog_info(_c,"TCP Server started at _port: %d",_port
我在我的LAMP环境中安装了reactphp (CentOS 6.4)。安装成功后,我收到了以下消息:
react/react suggests installing ext-libevent (Allows for use of a more performant event-loop implementation.)
react/react suggests installing ext-libev (Allows for use of a more performant event-loop implementation.)
react/react suggests installi