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Article catalog preface 1, Hardware connection 2, Raspberry pie enable I2C function 1. Enable I2C Kernel Module 2. Install I2C tools 3, Local temperature display 1. Installation luma.oled 's bag 2. Light up the oled screen 3. Local temperature and humidity detection 4, ONENET cloud platform displ ...

The beginning of 2020 is extraordinary. I will stay at home and study io again io is divided into bio,nio,aio Among them, netty belongs to nio, and aio has not been widely used, so it has great potential in the future Understand several concepts Synchronous and asynchronous Blocking and non blockingio m ...

netty chat explain: My thoughts demonstration Chat server Chat initialization configuration Client processing message Front end code epilogue explain: I found that it takes a lot of energy to write a blog. In order to leave more time for promotion, I just post the code. Learning address: https: ...

order This paper focuses on puma's DefaultTaskExecutor TaskExecutor puma/puma/src/main/java/com/dianping/puma/taskexecutor/TaskExecutor.java public interface TaskExecutor extends LifeCycle { boolean isStop(); boolean isMerging(); void stopUntil(long timestamp); void cancelStopUntil(); void setContext(PumaContext context ...

1, Core description of the project 1. Fleck is a relatively simple third-party component to implement websocket, which does not need to install additional containers. There are also several interfaces available. 2. The project is based on. net framework 4.7.2, developed on vs2019, and has not tried to run on the lower version. However, the new ...

Opening The article about Istio traffic hijacking can be found in a very detailed article in the servicemesher community at present. You can refer to: Sidecar injection and transparent traffic hijacking in Istio . In particular, the "traffic hijacking diagram" collated by the blogger can clearly see the hijacking process. Here I use ...

Problem scenarios We use Suricata for traffic analysis. Suricata is deployed on a 48-core physical machine with a multi-network card. Due to business needs, suricata's network card for monitoring traffic has been upgraded from 5 to 6, enp176s0f1 has been added, and several similar errors have been found in suricata's log: <Error> - [ERRC ...

Source: https://blog.csdn.net/wh_sjc/article/details/70283843   IPC (InterProcess Communication) refers to the communication or exchange of information between different processes. IPC usually includes pipeline (including nameless pipeline and named pipeline), message queue, semaphore, shared storage, socket, Streams, etc. Soc ...

Blocking IO Model (Blocking I/O) The Linux kernel initially provides read and write blocking operations. When a client connects, a corresponding file descriptor (0 standard input, 1 standard output, 2 standard error output) is generated in the file descriptor directory of the corresponding process (/proc/process number/fd), such as FD 8, FD 9 ...

Ctssecuritytestcases - listeningportstest locates tcp port and pid [problem description] cts failures armeabi-v7a CtsSecurityTestCases android.security.cts.ListeningPortsTest#testNoListeningLoopbackTcpPorts Tool: 9.0 μ R11 05-06 17:11:28.649 17375 17391 E TestRunner: android.security.cts.ListeningPortsTest$ListeningPortsAssertionError: 05-0 ...