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Sending files using POST with HttpURLConnection
...ith bitmap data:
Bitmap bitmap = ...;
String filename = "filename.png";
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, bos);
ContentBody contentPart = new ByteArrayBody(bos.toByteArray(), filename);
MultipartEntity r...
动态追踪(Dynamic Tracing)技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...,对那些超过一秒总延时的请求进行分析。该工具会直接测试这些问题请求内部的时间分布,包括请求处理过程中各个典型 I/O 操作的延时以及纯 CPU 计算延时。结果很快定位到是 OpenResty 在访问 Go 编写的 DNS 服务器时,出现延时...
原子vector的一种实现源码(atomic-vector) - C/C++ - 清泛网 - 专注C/C++及内核技术
...原子交换,扩容采用链表的形式,代码可直接运行。
测试代码:
HPHP::AtomicVector<float> v_atom(2, 0.f);
void atom_vector_hphp() {
v_atom.exchange(0, 1);
v_atom.exchange(1, 2);
}
atomic vector folly
通过FastCGI Cache实现服务降级 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...缓存被激活,运行于静态模式,数据通过缓存渲染。通过测试发现,系统在从正常切换到异常时,因为舍弃了PHP-FPM,所以RPS从一千跃升到一万。这让我想起儿时看圣斗士的情景:每当不死鸟一辉被敌人击倒后,他总能重新站起...
adito-gateway -华为云免费SSL VPN解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...解决方法:
yum install glibc.i686
再次运行 ant start
在测试时已经能进入网页https://服务器IP地址,但是用超级用户不能登录,重启下服务器即可
#reboot
登录http://ip
上传插件 点击Extension Manager 右上角的Upload Exension
...
How to add a custom right-click menu to a webpage?
...gt;
<a href="#">
<img src="http://puu.sh/nr60s/42df867bf3.png" /> AdBlock Plus <span>Ctrl + ?!</span>
</a>
<a href="#">
<img src="http://puu.sh/nr5Z6/4360098fc1.png" /> SNTX <span>Ctrl + ?!</span>
</a>
<hr />
...
Generate a heatmap in MatPlotLib using a scatter data set
...I don't mean to be an idiot, but how do you actually have this output to a PNG/PDF file instead of only displaying in an interactive IPython session? I'm trying to get this as some sort of normal axes instance, where I can add a title, axis labels, etc. and then do the normal savefig() like I would ...
Insert code into the page context using a content script
...of usage would be:
var formulaImageUrl = chrome.extension.getURL("formula.png");
var codeImageUrl = chrome.extension.getURL("code.png");
inject([
scriptFromSource("var formulaImageUrl = '" + formulaImageUrl + "';"),
scriptFromSource("var codeImageUrl = '" + codeImageUrl + "';"),
script...
How can I extract embedded fonts from a PDF as valid font files?
...y you will see a variety of files: images as well as fonts. These include PNG, TTF, CFF, CID, etc. The image names will be like img-0412.png if the PDF object number of the image was 412. The fontnames will be like FGETYK+LinLibertineI-0966.ttf, if the font's PDF object number was 966.
CFF (Compact...
CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...是以线程为单位还是以进程为单位呢?也许大家已经通过测试程序摸索出答案,没错,是以线程为单位。今天我们就稍微再深入一下,通过分析CoInitialize的具体实现来印证我们的想法。
我们先来看看CoInitialize的汇编
769B2A24 ...
