Initial Commit (Read: Dirty AF)
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18
.pre-commit-config.yaml
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18
.pre-commit-config.yaml
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# See https://pre-commit.com for more information
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# See https://pre-commit.com/hooks.html for more hooks
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repos:
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- repo: https://github.com/pre-commit/pre-commit-hooks
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rev: v5.0.0
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hooks:
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- id: trailing-whitespace
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- id: end-of-file-fixer
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- id: check-yaml
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- id: check-added-large-files
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- repo: https://github.com/dnephin/pre-commit-golang
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rev: v0.5.1
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hooks:
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- id: go-fmt
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- id: go-imports
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- id: no-go-testing
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- id: golangci-lint
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- id: go-unit-tests
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@ -1,3 +1,3 @@
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# sfcs
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Sudoku-Funpark Cluster Software: same as [Sudoku-funpark](https://gitea.ligthert.net/golang/sudoku-funpark/), but networked.
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Sudoku-Funpark Cluster Software: same as Sudoku-funpark, but networked.
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36
Taskfile.yml
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36
Taskfile.yml
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# https://taskfile.dev
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version: '3'
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vars:
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APP: sudoku-funpark
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BUILD_DIR: builds
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tasks:
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default:
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cmds:
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- go run . --help
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silent: true
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precommit:
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cmds:
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- pre-commit autoupdate
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- pre-commit run --all
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silent: true
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lint:
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cmds:
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- golangci-lint run
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silent: true
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build:
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cmds:
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- mkdir -p {{.BUILD_DIR}}
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- rm {{.BUILD_DIR}}/* || true
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- go tool dist list | grep -v android | grep -v ios | grep -v wasip1 | awk -F '/' '{printf "echo Compiling %s/%s; env CGO_ENABLED=1 GOOS=%s GOARCH=%s go build -o {{.BUILD_DIR}}/{{.APP}}.%s-%s\n",$1,$2,$1,$2,$1,$2 }' | sh
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- for i in `ls {{.BUILD_DIR}}/*windows*`; do mv -v $i $i.exe; done
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gource:
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cmds:
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- gource --auto-skip-seconds 1 --key -r 60
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silent: true
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godoc:
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cmds:
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- godoc -http=:6060
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silent: true
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6
client/types.go
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6
client/types.go
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package client
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type Client struct {
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serverAddress string
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serverPort int
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}
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36
flags/ParseFlags.go
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36
flags/ParseFlags.go
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package flags
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import "flag"
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func (flags *Flags) ParseFlags() (err error) {
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// Define parameters
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flag.StringVar(&flags.Vars.Role, "role", "scheduler", "Role of the instance ['scheduler','agent']")
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flag.StringVar(&flags.Vars.Address, "address", "127.0.0.1", "Address of the instance to listen to/connect to")
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flag.IntVar(&flags.Vars.Port, "port", 8080, "Port of the instance to listen on/connect to")
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flag.IntVar(&flags.Vars.NumCPUs, "numcpus", 1, "[agent] Number of CPUs to use")
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// Parse the flags
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flag.Parse()
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// Parse the role parameters
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err = flags.parseRole()
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if err != nil {
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return err
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}
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/// Parse the number of CPUs parameters
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err = flags.parseNumCPUs()
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if err != nil {
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return err
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}
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// Parse the address and port parameters
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err = flags.parseAddressPort()
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if err != nil {
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return err
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}
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// Return nil if no errors
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return
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}
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32
flags/parseAddressPort.go
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32
flags/parseAddressPort.go
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package flags
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import (
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"fmt"
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"net"
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)
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func (flags *Flags) parseAddressPort() (err error) {
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// Ensure that address field is not empty
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if flags.Vars.Address == "" {
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return fmt.Errorf("Address cannot be empty")
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}
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// Ensure that address field is valid IP address
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if net.ParseIP(flags.Vars.Address) == nil {
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return fmt.Errorf("GloVars must be a valid IP address")
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}
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// Ensure that port field is not empty
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if flags.Vars.Port == 0 {
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return fmt.Errorf("Port cannot be empty")
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}
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// Ensure that port field is within the valid range
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if flags.Vars.Port < 1 || flags.Vars.Port > 65535 {
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return fmt.Errorf("Port must be between 1 and 65535")
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}
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return nil
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}
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12
flags/parseNumCPUs.go
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12
flags/parseNumCPUs.go
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package flags
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import "fmt"
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func (flags *Flags) parseNumCPUs() (err error) {
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if flags.Vars.NumCPUs <= 0 {
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return fmt.Errorf("Number of CPUs must be greater than 0")
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}
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return nil
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}
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18
flags/parseRole.go
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18
flags/parseRole.go
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package flags
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import "fmt"
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func (flags *Flags) parseRole() (err error) {
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// Ensure that role field is not empty
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if flags.Vars.Role == "" {
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return fmt.Errorf("Role cannot be empty")
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}
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// Ensure that role field is valid
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if flags.Vars.Role != "scheduler" && flags.Vars.Role != "agent" {
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return fmt.Errorf("Role must be either 'scheduler' or 'agent'")
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}
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return nil
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}
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7
flags/types.go
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7
flags/types.go
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package flags
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import "gitea.ligthert.net/golang/sfcs/vars"
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type Flags struct {
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Vars *vars.Vars
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}
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7
go.mod
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7
go.mod
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module gitea.ligthert.net/golang/sfcs
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go 1.23.4
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require gitea.ligthert.net/golang/sudoku-funpark v0.0.0-20250129164508-c1f2a28ac155
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require github.com/gorilla/websocket v1.5.3
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4
go.sum
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4
go.sum
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gitea.ligthert.net/golang/sudoku-funpark v0.0.0-20250129164508-c1f2a28ac155 h1:o3MLpDn26r/9DOCdATINPck2W0pNdXi6WiJcpKQwAYQ=
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gitea.ligthert.net/golang/sudoku-funpark v0.0.0-20250129164508-c1f2a28ac155/go.mod h1:GdZ2otAB+NMA19Noe7UFeP3gJtHCU4h8N158Oj1jNVY=
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github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
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github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
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36
main.go
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36
main.go
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package main
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import (
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"fmt"
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"os"
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"gitea.ligthert.net/golang/sfcs/flags"
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"gitea.ligthert.net/golang/sfcs/server"
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"gitea.ligthert.net/golang/sfcs/vars"
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)
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func main() {
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// Create a new instance of the Controller struct
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vars := vars.Vars{}
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// Create a new instance of the Flags struct
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flags := flags.Flags{Vars: &vars}
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err := flags.ParseFlags()
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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// Switch on the role
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switch vars.Role {
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case "scheduler":
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server := server.Server{ListenAddress: vars.Address, ListenPort: vars.Port}
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vars.Operator = &server
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case "agent":
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// operator := client.Client{}
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}
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vars.Operator.Start()
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}
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68
server/Start.go
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68
server/Start.go
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package server
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import (
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"log"
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"net/http"
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"strconv"
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"time"
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"github.com/gorilla/websocket"
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)
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func (server *Server) Start() error {
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// Start the server
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http.HandleFunc("/ws", func(w http.ResponseWriter, r *http.Request) {
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handleConnections(w, r)
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})
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log.Fatal(http.ListenAndServe(server.ListenAddress+":"+strconv.Itoa(server.ListenPort), nil))
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time.Sleep(600 * time.Second)
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return nil
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}
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var upgrader = websocket.Upgrader{
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ReadBufferSize: 1024,
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WriteBufferSize: 1024,
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}
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func handleConnections(w http.ResponseWriter, r *http.Request) {
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Println(err)
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return
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}
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defer conn.Close()
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log.Println("Starting server")
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go readMessages(conn)
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writeMessages(conn)
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}
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func readMessages(conn *websocket.Conn) {
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for {
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messageType, message, err := conn.ReadMessage()
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if err != nil {
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log.Println("Error reading message:", err)
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break
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}
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log.Printf("Received(%d): %s\n", messageType, message)
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// This sets the time-out for any incoming messages.
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// conn.SetReadDeadline(time.Now().Add(10 * time.Second))
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}
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}
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func writeMessages(conn *websocket.Conn) {
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for {
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err := conn.WriteMessage(websocket.TextMessage, []byte("Hello World!"))
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if err != nil {
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log.Println("Error writing message:", err)
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break
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}
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// This sets the time-out for any outgoing messages.
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// conn.SetWriteDeadline(time.Now().Add(10 * time.Second))
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time.Sleep(time.Second)
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}
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}
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6
server/types.go
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6
server/types.go
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package server
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type Server struct {
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ListenAddress string
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ListenPort int
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}
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23
vars/types.go
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23
vars/types.go
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package vars
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import "gitea.ligthert.net/golang/sudoku-funpark/outputter"
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type Operator interface {
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// Start the operator
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Start() error
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}
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type Vars struct {
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// Instance of the Outputter struct
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Outputter *outputter.Outputter
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// Role is either "scheduler" or "agent"
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Role string
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// Operator interface
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Operator Operator
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// [agent] NumCPUs is the number of CPUs to use
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NumCPUs int
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// Address is the address of the instance to listen to/connect to
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Address string
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// Port is the port of the instance to listen on/connect to
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Port int
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}
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