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October 16, 2023 22:02
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| package main | |
| import ( | |
| "archive/zip" | |
| "bufio" | |
| "fmt" | |
| "io" | |
| "os" | |
| "runtime" | |
| "time" | |
| ) | |
| func main() { | |
| go Monitor() | |
| zipFilePath := "sample.zip" | |
| outputDirectory := "./extracted" | |
| // Open the ZIP file for reading. | |
| zipFile, err := zip.OpenReader(zipFilePath) | |
| if err != nil { | |
| fmt.Println("Error opening ZIP file:", err) | |
| return | |
| } | |
| defer zipFile.Close() | |
| // Create the output directory if it doesn't exist. | |
| if err := os.MkdirAll(outputDirectory, os.ModePerm); err != nil { | |
| fmt.Println("Error creating output directory:", err) | |
| return | |
| } | |
| for _, file := range zipFile.File { | |
| // Open each file in the ZIP archive. | |
| inFile, err := file.Open() | |
| if err != nil { | |
| fmt.Println("Error opening file in ZIP:", err) | |
| return | |
| } | |
| defer inFile.Close() | |
| // Create the output file. | |
| outFile, err := os.Create(outputDirectory + "/" + file.Name) | |
| if err != nil { | |
| fmt.Println("Error creating output file:", err) | |
| return | |
| } | |
| defer outFile.Close() | |
| // Copy the content from the ZIP file to the output file in chunks. | |
| _, err = io.Copy(outFile, inFile) | |
| if err != nil { | |
| fmt.Println("Error copying content:", err) | |
| return | |
| } | |
| } | |
| fmt.Println("Extraction complete.") | |
| csvFile, _ := os.Open("./extracted/sample.csv") | |
| reader := bufio.NewReader(csvFile) | |
| for { | |
| _, err := reader.ReadString('\n') | |
| if err == io.EOF { | |
| break | |
| } | |
| if err != nil { | |
| fmt.Println("Error reading file:", err) | |
| return | |
| } | |
| // NOTE: demora mas imprimiendo que la propia ejecución | |
| // fmt.Println(line) | |
| } | |
| } | |
| func Monitor() { | |
| // print memory usage every 0.5 seconds and run the main function | |
| for { | |
| printMemUsage() | |
| time.Sleep(100 * time.Millisecond) | |
| } | |
| } | |
| func printMemUsage() { | |
| var m runtime.MemStats | |
| runtime.ReadMemStats(&m) | |
| // For info on each, see: https://golang.org/pkg/runtime/#MemStats | |
| fmt.Printf("Current = %v MiB", bToMb(m.Alloc)) | |
| fmt.Printf("\tTotal = %v MiB", bToMb(m.TotalAlloc)) | |
| fmt.Printf("\tSys = %v MiB", bToMb(m.Sys)) | |
| fmt.Printf("\tNumGC = %v\n", m.NumGC) | |
| } | |
| func bToMb(b uint64) uint64 { | |
| return b / 1024 / 1024 | |
| } |
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