service. The following is an example of the simplest Web server that simply returns a request link for any request:package mainimport ( "fmt" "html" "log" "net/http")func main() { http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path)) }) log.Fatal(http.ListenAndServe(":8080", nil))}Compiling This example will run the server and listen on port 8080. Try using http://localho
matching routing rule that handler represents the corresponding processing method for the routing rule, and the processing method has two parameters.
In the code example we write, the corresponding, pattern / handler corresponding sayHello , when we enter in the browser http://localhost:9090 , the method is triggered sayHello .
We DefaultServeMux will continue to follow the HandleFunc method, as follows:
func (mux *ServeMux) HandleFunc(pattern string
Record the creation of RESTful APIs using Go the development language and the MongoDB background database
Full Code GithubImage
Installation dependencies
go get github.com/globalsign/mgo // MongoDB的Go语言驱动go get github.com/gorilla/mux // Go语言的http路由库
API Structure Preview
app.go
The package mainimport ("FMT" "Net/http" "Github.com/gorilla/mux") Func allmovies (w http. Responsewriter, R *http. Request) {
This article QQ space link: http://user.qzone.qq.com/29185807/blog/1460620187
This article csdn Links: http://blog.csdn.net/screscent/article/details/51152192
The kube-proxy is the load Balancer and service agent for services in Kubernetes. Kube-proxy runs on the Minion, this article mainly explains how the proxy obtains ServiceConfig and Endpointsconfig
Source code in the K8s.io\kubernetes\cmd\kube-proxy\app
Func newproxyserverdefault (config *proxyserverconfig) (*proxyserver, error) {
From t
. provides unified and effective network management to improve the level of network operation services and reduce operation costs;5. Lower network construction costs and faster deployment capabilities.
Through thinking about the above issues, as the mainstream manufacturer of access equipment, ruisida proposed the concept of building a converged access network through the multi-service access network platform-that is, using MSAPMulti-ServiceAccessPlatform) product Series and integrated network m
layer, frame-based and VLAN-based access control, and RACL on the third layer;City Ethernet:A private VLAN is a Cisco proprietary technology. It is used to isolate hosts in the same VLAN. The management is complex and the scalability is poor;PVLAN can be divided into the primary VLAN and the secondary VLAN. The secondary VLAN can be divided into the isolated VLAN and the ac vlan;PVLAN port: public port, isolation port, and AC port. The isolation port can only communicate with public ports (only
("/hello", HelloServer) This line of code registers the handler function under the specified path.
typeServemuxstruct{mu sync. Rwmutex//Lock, involving multithreadingMMap[string]muxentry hostsBOOL //Whether any patterns contain hostnames}typeMuxentrystruct{ExplicitBOOLH Handler Patternstring}//Objects Implementing the Handler interface can be//registered to serve a particular path or subtree//In the HTTP server.////Servehttp should write reply headers and data to the Responsewriter//And then re
structures directly in the console.
Go to Github.com/gorilla/mux
Gorilla's MUX package is very popular and we use it to write Web handler.
Go to Github.com/joho/godotenv
Godotenv can help us read the. env configuration file in the project root directory so that we don't have to hard-code the configuration of HTTP port into the code. Like this:
addr=8080
Next, we create a main.go file. After most of o
Golang 1.7 version of the context library is used by many standard library modules, such as net/http and OS modules, using these native modules, we do not need to write the context of the manager, directly call the function interface can be implemented, Using context, we can implement some variable management such as the request's declaration period, perform some operation timeouts and so on. Save Context Object
Here we look at a simple example of how to use the context feature to implement the
, you can put 24-bit, 16-bit RGB,YUV data input, with the camera link, video data input mode becomes diversified, FPGA, sensor, HDMI, SDI, VGA, Dvo and so on can input data, in TI's capture link and usecase in the Change collection Viport port, acquisition mode, acquisition bits, the limit of the field, the acquisition of clocks.Char *gcapturelink_portname[] = {"VIP0 PortA", "VIP0 PORTB", "VIP1 PortA", "VIP1 PORTB",};Char *gcapturelink_ifname[] = {"8-bit", "16-bit", "24-bit",};Char *gcapturelink
section.Through this article, you will be able to:
Create your own Blockchain
Understand how hash functions keep the integrity of the blockchain
How to create and add a new block
How multiple nodes compete for building blocks
View the entire chain through a browser
All the other basics about blockchain
However, the consensus algorithm articles such as the Work Proof algorithm (PoW) and the Equity Proof algorithm (PoS) will not be covered. At the same time, in order to
section.Through this article, you will be able to:
Create your own Blockchain
Understand how hash functions keep the integrity of the blockchain
How to create and add a new block
How multiple nodes compete for building blocks
View the entire chain through a browser
All the other basics about blockchain
However, the consensus algorithm articles such as the Work Proof algorithm (PoW) and the Equity Proof algorithm (PoS) will not be covered. At the same time, in order to
= defaultServeMuxvar defaultServeMux ServeMuxtype ServeMux struct { mu sync.RWMutex m map[string]muxEntry hosts bool }type muxEntry struct { explicit bool h Handler pattern string}
Servemux mainly through the map[string]muxentry, to store the specific URL pattern and handler (this handler is to implement the type of handler interface). Match the route by implementing the handler Servehttp method (this is the source below)Many places involve handler, so what is h
/280ms, Indicates that the video data should be decoded and displayed after 80ms (the video data is saved in a buffer to start decoding) when the SCR is 200ms, and the overflow usually occurs in the set video data stream associated with a high mux rate. If the MUX rate is 1000000bits/sec (meaning that the decoder is going to read the file at 1000000bits/sec rate ), the video rate is 2000000bits/sec (which m
FFmpeg's understanding about Timebase
One: FFmpeg's layered structure
When writing this article, let's outline the FFmpeg layering problem, which we summarize in accordance with the most common "transcoding program" and "Camera capture" and "player" three models.
1: transcoding
transcoding basic Flow: FLV Format Data-->H264/AAC data-->YUV/PCM data-->H264/AAC data-->mp4 format data.
A: We call the FLV format data or the MP4 format data This layer is called the
cable access distance, improve access to bandwidth, to achieve universal user width with business access. For a small number of large customers high bandwidth access requirements (such as 10M, 20M or more bandwidth), the use of optical cable access transmission. Therefore, in the implementation of "light into the copper back", combined with integrated access to the network planning to make access to the layer of optical cable planning and construction, the optical junction point and access to t
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