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main.go
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main.go
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package main
import (
"encoding/json"
"fmt"
"net/http"
"sort"
"sync"
"time"
)
// Payload struct for JSON request
type Payload struct {
ToSort [][]int `json:"to_sort"`
}
// Response struct for JSON response
type Response struct {
SortedArrays [][]int `json:"sorted_arrays"`
TimeNS int64 `json:"time_ns"`
}
func sortArraySequential(arr []int) {
sort.Ints(arr)
}
func sortArrayConcurrent(arr []int, wg *sync.WaitGroup) {
defer wg.Done()
sort.Ints(arr)
}
func processSingle(w http.ResponseWriter, r *http.Request) {
var payload Payload
if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
http.Error(w, "Invalid JSON payload", http.StatusBadRequest)
return
}
startTime := time.Now()
for _, subArray := range payload.ToSort {
sortArraySequential(subArray)
}
endTime := time.Now()
timeTaken := endTime.Sub(startTime).Nanoseconds()
response := Response{
SortedArrays: payload.ToSort,
TimeNS: timeTaken,
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(response)
}
func processConcurrent(w http.ResponseWriter, r *http.Request) {
var payload Payload
if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
http.Error(w, "Invalid JSON payload", http.StatusBadRequest)
return
}
startTime := time.Now()
var wg sync.WaitGroup
for _, subArray := range payload.ToSort {
wg.Add(1)
go sortArrayConcurrent(subArray, &wg)
}
wg.Wait()
endTime := time.Now()
timeTaken := endTime.Sub(startTime).Nanoseconds()
response := Response{
SortedArrays: payload.ToSort,
TimeNS: timeTaken,
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(response)
}
func main() {
http.HandleFunc("/process-single", processSingle)
http.HandleFunc("/process-concurrent", processConcurrent)
port := 8000
fmt.Printf("Server is running on port %d...\n", port)
http.ListenAndServe(fmt.Sprintf(":%d", port), nil)
}