Added a logger to be easier to differentiate on the output

.gitignore

@@ -1,2 +1,2 @@
-coverage*
-*.txt
+coverage*
+*.txt

Makefile

@@ -1,3 +1,3 @@
-test:
-	go test -coverprofile=coverage.out ./... -cover -bench=
-	go tool cover -html=coverage.out -o coverage.html
+test:
+	go test -coverprofile=coverage.out ./... -cover -bench=
+	go tool cover -html=coverage.out -o coverage.html

README.md

@@ -1,17 +1,17 @@
-# About
-This project will be able to parse `.ibt` files, read live data from races and
-broadcast messages to the service. Its still not very mature at all, but after
-this commit I will turn it into a package instead and give it a stable API.
-Will also put some examples then.
-
-
-## The SDK
-I used various sources to develop and understand how `iRacing` works, and learn
-a lot with it. Once I have matured this project a bit I will document its
-inner workings too.
-
-
-## SharedMem
-I vendored in the code from [hidez8891/shm](https://github.com/hidez8891/shm) 
-since the repo has been archived. I took the opportunity to update some of its
-code.
+# About
+This project will be able to parse `.ibt` files, read live data from races and
+broadcast messages to the service. Its still not very mature at all, but after
+this commit I will turn it into a package instead and give it a stable API.
+Will also put some examples then.
+
+
+## The SDK
+I used various sources to develop and understand how `iRacing` works, and learn
+a lot with it. Once I have matured this project a bit I will document its
+inner workings too.
+
+
+## SharedMem
+I vendored in the code from [hidez8891/shm](https://github.com/hidez8891/shm) 
+since the repo has been archived. I took the opportunity to update some of its
+code.

diskSubHeader_whitebox_test.go

@@ -1,38 +1,38 @@
-package goirsdk
-
-import (
-	"testing"
-
-	"github.com/google/go-cmp/cmp"
-)
-
-// TestParseTelemetrySubHeader_WithGoodBuffer
-// Given a well structured buffer it will output the expected
-// DiskSubHeader struct
-func TestParseTelemetrySubHeader_WithGoodBuffer(t *testing.T) {
-	// Arrange
-	header := [32]byte{
-		0x54, 0x1e, 0x14, 0x67, 0x00, 0x00, 0x00, 0x00, 0x54, 0x09, 0x00, 0xf0,
-		0xee, 0x7e, 0x6b, 0x40, 0x53, 0x74, 0x88, 0x44, 0x44, 0x86, 0x8f, 0x40,
-		0x08, 0x00, 0x00, 0x00, 0xe1, 0xb8, 0x00, 0x00,
-	}
-
-	expectedHeader := DiskSubHeader{
-		StartDate:   1729371732,
-		StartTime:   219.96666717536084,
-		EndTime:     1008.7833338413715,
-		LapCount:    8,
-		RecordCount: 47329,
-	}
-
-	// Act
-	headers, err := parseTelemetrySubHeader(header)
-
-	// Assert
-	if err != nil {
-		t.Fatalf("Error parsing buffer: %v", err)
-	}
-	if !cmp.Equal(&expectedHeader, headers) {
-		t.Fatalf("Expected:\n%#v\nGot:\n%#v\n", expectedHeader, headers)
-	}
-}
+package goirsdk
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+// TestParseTelemetrySubHeader_WithGoodBuffer
+// Given a well structured buffer it will output the expected
+// DiskSubHeader struct
+func TestParseTelemetrySubHeader_WithGoodBuffer(t *testing.T) {
+	// Arrange
+	header := [32]byte{
+		0x54, 0x1e, 0x14, 0x67, 0x00, 0x00, 0x00, 0x00, 0x54, 0x09, 0x00, 0xf0,
+		0xee, 0x7e, 0x6b, 0x40, 0x53, 0x74, 0x88, 0x44, 0x44, 0x86, 0x8f, 0x40,
+		0x08, 0x00, 0x00, 0x00, 0xe1, 0xb8, 0x00, 0x00,
+	}
+
+	expectedHeader := DiskSubHeader{
+		StartDate:   1729371732,
+		StartTime:   219.96666717536084,
+		EndTime:     1008.7833338413715,
+		LapCount:    8,
+		RecordCount: 47329,
+	}
+
+	// Act
+	headers, err := parseTelemetrySubHeader(header)
+
+	// Assert
+	if err != nil {
+		t.Fatalf("Error parsing buffer: %v", err)
+	}
+	if !cmp.Equal(&expectedHeader, headers) {
+		t.Fatalf("Expected:\n%#v\nGot:\n%#v\n", expectedHeader, headers)
+	}
+}

go.mod

@@ -1,10 +1,10 @@
-module github.com/ESilva15/goirsdk
-
-go 1.23.2
-
-require (
-	github.com/google/go-cmp v0.6.0
-	golang.org/x/sys v0.26.0
-	golang.org/x/text v0.19.0
-	gopkg.in/yaml.v3 v3.0.1
-)
+module github.com/ESilva15/goirsdk
+
+go 1.23.2
+
+require (
+	github.com/google/go-cmp v0.6.0
+	golang.org/x/sys v0.26.0
+	golang.org/x/text v0.19.0
+	gopkg.in/yaml.v3 v3.0.1
+)

go.sum

@@ -1,10 +1,10 @@
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
-golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
-golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
+golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
+golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

headers_whitebox_test.go

@@ -1,52 +1,52 @@
-package goirsdk
-
-import (
-	"testing"
-
-	"github.com/google/go-cmp/cmp"
-)
-
-// TestParseTelemetryHeader_WithGoodBuffer
-// Given a well structured buffer it will output the expected
-// TelemetryHeaders struct
-func TestParseTelemetryHeader_WithGoodBuffer(t *testing.T) {
-	// Arrange
-	header := [112]byte{
-		0x02, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x00, 0x05, 0x3f, 0x00, 0x00, 0x90, 0x99, 0x00, 0x00,
-		0x10, 0x01, 0x00, 0x00, 0x90, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
-		0x1d, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0x60, 0x2b, 0x00, 0x00, 0x95, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x00,
-	}
-
-	expectedHeader := TelemetryHeaders{
-		Version:           2,
-		Status:            1,
-		TickRate:          60,
-		SessionInfoUpdate: 0,
-		SessionInfoLength: 16133,
-		SessionInfoOffset: 39312,
-		NumVars:           272,
-		VarHeaderOffset:   144,
-		NumBuf:            1,
-		BufLen:            1053,
-		Padding:           [12]byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x60, 0x2b, 0x0, 0x0},
-		BufOffset:         55445,
-	}
-
-	// Act
-	headers, err := parseTelemetryHeader(header)
-
-	// Assert
-	if err != nil {
-		t.Fatalf("Error parsing buffer: %v", err)
-	}
-	if !cmp.Equal(&expectedHeader, headers) {
-		t.Fatalf("Expected:\n%#v\nGot:\n%#v\n", expectedHeader, headers)
-	}
-}
+package goirsdk
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+// TestParseTelemetryHeader_WithGoodBuffer
+// Given a well structured buffer it will output the expected
+// TelemetryHeaders struct
+func TestParseTelemetryHeader_WithGoodBuffer(t *testing.T) {
+	// Arrange
+	header := [112]byte{
+		0x02, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x05, 0x3f, 0x00, 0x00, 0x90, 0x99, 0x00, 0x00,
+		0x10, 0x01, 0x00, 0x00, 0x90, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+		0x1d, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x60, 0x2b, 0x00, 0x00, 0x95, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00,
+	}
+
+	expectedHeader := TelemetryHeaders{
+		Version:           2,
+		Status:            1,
+		TickRate:          60,
+		SessionInfoUpdate: 0,
+		SessionInfoLength: 16133,
+		SessionInfoOffset: 39312,
+		NumVars:           272,
+		VarHeaderOffset:   144,
+		NumBuf:            1,
+		BufLen:            1053,
+		Padding:           [12]byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x60, 0x2b, 0x0, 0x0},
+		BufOffset:         55445,
+	}
+
+	// Act
+	headers, err := parseTelemetryHeader(header)
+
+	// Assert
+	if err != nil {
+		t.Fatalf("Error parsing buffer: %v", err)
+	}
+	if !cmp.Equal(&expectedHeader, headers) {
+		t.Fatalf("Expected:\n%#v\nGot:\n%#v\n", expectedHeader, headers)
+	}
+}

irsdk.go

@@ -2,22 +2,25 @@
 package goirsdk
 
 import (
+	"github.com/ESilva15/goirsdk/logger"
+
 	"fmt"
-	"log"
 	"os"
-	// "os"
+
 	"io"
-	// "log"
-	// "time"
 
-	// conv "ibtReader/conversions"
 	"github.com/ESilva15/goirsdk/winutils"
+	"gopkg.in/yaml.v3"
 )
 
 const (
 	ibtFile = "./telemetryFiles/mx5_2016Okayama_full_2024_10_19_22_02_12.ibt"
 )
 
+func msToKph(v float32) int {
+	return int((3600 * v) / 1000)
+}
+
 // Reader is an interface to represent the readable data that can be either
 // a .ibt file (or live data, hopefully)
 type Reader interface {
@@ -29,7 +32,8 @@ type Reader interface {
 // IBT struct will hold the relevant data for a given IBT file
 type IBT struct {
 	File         Reader                    // Source of the data
-	FileToExport string                    // If set, it will export the IBT data to the file
+	FileToExport *os.File                  // If set, it will export the IBT data to the file
+	YAMLExport   *os.File                  // If set, it will export the session YAML to the file
 	Headers      *TelemetryHeaders         // IBT file Headers
 	SubHeaders   *DiskSubHeader            // IBT file Sub Headers
 	SessionInfo  *SessionInfoYAML          // IBT file Session Info
@@ -50,28 +54,43 @@ func (i *IBT) IsConnected() bool {
 	return false
 }
 
-func (i *IBT) ExportToIBT(filepath string) {
-	rbuf := make([]byte, fileMapSize)
-
-	_, err := i.File.ReadAt(rbuf, 0)
+func (i *IBT) exportYAML(path string) error {
+	file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
 	if err != nil {
-		log.Fatal(err)
+		return fmt.Errorf("failed to open output file for YAML: %v", err)
+	}
+	defer file.Close()
+
+	enc := yaml.NewEncoder(file)
+
+	err = enc.Encode(i.SessionInfo)
+	if err != nil {
+		return fmt.Errorf("failed to write YAML contents to file: %v", err)
 	}
 
-	err = os.WriteFile(filepath, rbuf, 0644)
-	if err != nil {
-		log.Fatal(err)
-	}
+	return nil
 }
 
 // Init serves to initialize and get a hold of a IBT struct
-func Init(f Reader) (*IBT, error) {
+func Init(f Reader, exportTelem string, exportYAML string) (*IBT, error) {
+	log := logger.GetInstance()
+
 	// Read the header of the file
 	var err error
 	ibt := IBT{
-		File:     f,
-		Vars:     &TelemetryVars{},
-		winUtils: nil,
+		File:         f,
+		FileToExport: nil,
+		YAMLExport:   nil,
+		Vars:         &TelemetryVars{},
+		winUtils:     nil,
+	}
+
+	// If requested to output to a telemetry file
+	if exportTelem != "" {
+		ibt.FileToExport, err = os.OpenFile(exportTelem, os.O_CREATE|os.O_RDWR, 0644)
+		if err != nil {
+			return nil, fmt.Errorf("failed to open ibt export file: %v", err)
+		}
 	}
 
 	if ibt.File == nil {
@@ -112,10 +131,15 @@ func Init(f Reader) (*IBT, error) {
 	if err != nil {
 		return nil, fmt.Errorf("Unable to read headers from file: %v", err)
 	}
+	// Write to the output file
+	_, err = ibt.FileToExport.WriteAt(headerRaw[:], 0)
+	if err != nil {
+		log.Fatal(err)
+	}
 
 	// Read the disk sub headers
 	var subheaderRaw [SubHeaderSize]byte
-	_, err = ibt.File.ReadAt(subheaderRaw[:], 112)
+	_, err = ibt.File.ReadAt(subheaderRaw[:], HeaderSize)
 	if err != nil {
 		return nil, fmt.Errorf("Failed to read disk subheaders from file: %v", err)
 	}
@@ -123,6 +147,11 @@ func Init(f Reader) (*IBT, error) {
 	if err != nil {
 		return nil, fmt.Errorf("Unable to parse disk subheaders from file: %v", err)
 	}
+	// Write to the output file
+	_, err = ibt.FileToExport.WriteAt(subheaderRaw[:], HeaderSize)
+	if err != nil {
+		log.Fatal(err)
+	}
 
 	// Read session info string
 	sessionInfoStringRaw := make([]byte, ibt.Headers.SessionInfoLength)
@@ -130,10 +159,23 @@ func Init(f Reader) (*IBT, error) {
 	if err != nil {
 		return nil, fmt.Errorf("Failed to read sessionInfoString from file: %v", err)
 	}
+	// Write to the output file
+	_, err = ibt.FileToExport.WriteAt(sessionInfoStringRaw[:], int64(ibt.Headers.SessionInfoOffset))
+	if err != nil {
+		log.Fatal(err)
+	}
+
 	ibt.SessionInfo, err = parseSessionInfo(sessionInfoStringRaw, ibt.Headers.SessionInfoLength)
 	if err != nil {
 		return nil, fmt.Errorf("Unable to parse SessionInfoString from file: %v", err)
 	}
+	// Write to YAML output file
+	if exportYAML != "" {
+		err := ibt.exportYAML(exportYAML)
+		if err != nil {
+			return nil, err
+		}
+	}
 
 	// Read the telemetry vars info
 	err = ibt.readVariablerHeaders()
@@ -151,69 +193,3 @@ func (i *IBT) Close() {
 		i.winUtils.Close()
 	}
 }
-
-// func main() {
-// 	fmt.Println("================== IBT FILE PARSER ==================")
-//
-// 	file, err := os.Open(ibtFile)
-// 	if err != nil {
-// 		log.Fatalf("Failed to open IBT file: %v", err)
-// 	}
-//
-// 	ibt, err := Init(file)
-// 	if err != nil {
-// 		log.Fatalf("Failed to create irsdk instance: %v", err)
-// 	}
-// 	// fmt.Printf("%s\n", ibt.Headers.ToString())
-// 	// fmt.Printf("%s\n", ibt.SubHeaders.ToString())
-// 	// fmt.Printf("%s\n", ibt.SessionInfo.ToString())
-//
-// 	// Display the human readable start date
-// 	// unixStartDate := time.Unix(ibt.SubHeaders.StartDate, 0)
-// 	// startDate := unixStartDate.Format("2006/01/02 15:04:05 -0700 MST")
-// 	// fmt.Println("StartDate:", startDate)
-//
-// 	// Display the human readable version of start time
-// 	// unixStartTime := time.Unix(ibt.SubHeaders.StartDate+int64(ibt.SubHeaders.StartTime), 0)
-// 	// startTime := unixStartTime.Format("2006/01/02 15:04:05 -0700 MST")
-// 	// fmt.Println("StartTime:", startTime)
-//
-// 	// Display the human readable version of end time
-// 	// unixEndTime := time.Unix(ibt.SubHeaders.StartDate+int64(ibt.SubHeaders.EndTime), 0)
-// 	// endTime := unixEndTime.Format("2006/01/02 15:04:05 -0700 MST")
-// 	// fmt.Println("EndTime:  ", endTime)
-//
-// 	last := time.Now().UnixMilli()
-// 	for {
-// 		time.Sleep(time.Second / 60)
-// 		res, err := ibt.Update(100 * time.Millisecond)
-// 		if res == Unknown {
-// 			log.Fatalf("Some unknown error occurred: %v\n", err)
-// 		}
-//
-// 		if res == Paused {
-// 			fmt.Printf("\r                                                                    \r")
-// 			fmt.Println("GAME IS PAUSED")
-// 			continue
-// 		}
-//
-// 		curTime := time.Now().UnixMilli()
-//
-// 		if curTime-last > 250 {
-// 			fmt.Printf("                                                           \r")
-// 			if val, ok := ibt.Vars.Vars["Speed"]; ok {
-// 				fmt.Printf("\r%d %d", ibt.Vars.Tick/60, conv.MsToKph(val.Value.(float32)))
-// 			} else {
-// 				fmt.Printf("\r%d %s", ibt.Vars.Tick/60, "KEY DOESN'T EXIST")
-// 			}
-// 		}
-//
-// 		if res == Ended {
-// 			fmt.Println("\nEnd of file found...")
-// 			break
-// 		}
-// 	}
-// 	fmt.Printf("%d\n", ibt.Vars.Tick)
-//
-// 	ibt.Close()
-// }

logger/logger.go

@@ -0,0 +1,23 @@
+package logger
+
+import (
+	"log"
+	"os"
+	"sync"
+)
+
+var l *log.Logger
+var once sync.Once
+
+func createLogger() {
+  l = log.New(os.Stdout, "[ibtReader] ", log.LstdFlags | log.Lshortfile)
+}
+
+func GetInstance() *log.Logger {
+	once.Do(func() {
+    createLogger() 
+	})
+
+  return l
+}
+

variables.go

@@ -91,8 +91,9 @@ type varBuffer struct {
 }
 
 type TelemetryVars struct {
-	Tick int32
-	Vars map[string]Var
+	Tick         int32          // Keeps track of the current data buffer tick
+	RecorderTick int32          // Counts from 0 when creating a telemetry file from a replay or live data
+	Vars         map[string]Var // Variables content
 }
 
 func (i *IBT) readVariablerHeaders() error {
@@ -107,6 +108,11 @@ func (i *IBT) readVariablerHeaders() error {
 			return err
 		}
 
+		_, err = i.FileToExport.WriteAt(rbuf, int64(i.Headers.VarHeaderOffset+k*VarHeaderSize))
+		if err != nil {
+			log.Fatal(err)
+		}
+
 		var dst IBTVar
 		err = binary.Read(bytes.NewBuffer(rbuf[:]), binary.LittleEndian, &dst)
 		if err != nil {
@@ -197,6 +203,11 @@ func (i *IBT) Update(timeout time.Duration) (IRacingState, error) {
 			return Failed, err
 		}
 
+		_, err = i.FileToExport.WriteAt(buf, int64(i.Headers.BufOffset+i.Vars.RecorderTick*i.Headers.BufLen))
+		if err != nil {
+			log.Fatalf("Failed to write to file [2]: %v", err)
+		}
+
 		err = i.readData(buf)
 		if err != nil && err != io.EOF {
 			return Unknown, err
@@ -205,11 +216,21 @@ func (i *IBT) Update(timeout time.Duration) (IRacingState, error) {
 		if err == io.EOF {
 			return Ended, nil
 		}
+
+		i.Vars.RecorderTick++
 	} else {
-		// This will get the dataframe corresponding to a give tick
+		// This will get the dataframe corresponding to a given tick
 		start := i.Headers.BufOffset + i.Vars.Tick*i.Headers.BufLen
 		buf := make([]byte, i.Headers.BufLen)
 		_, err := i.File.ReadAt(buf, int64(start))
+
+		// Make this happen in a different thread, or have this send to a queue that has a thread
+		// writing to a file
+		_, err = i.FileToExport.WriteAt(buf, int64(start))
+		if err != nil {
+			log.Fatalf("Failed to write to file [1]: %v\n", err)
+		}
+
 		if err == io.EOF {
 			return Ended, nil
 		}
@@ -226,11 +247,5 @@ func (i *IBT) Update(timeout time.Duration) (IRacingState, error) {
 		i.Vars.Tick++
 	}
 
-	// Make this happen in a different thread, or have this send to a queue that has a thread
-	// writing to a file
-	if i.FileToExport != "" {
-		i.ExportToIBT(i.FileToExport)
-	}
-
 	return Running, nil
 }

winutils/winutils_linux.go

@@ -1,53 +1,53 @@
-//go:build (linux && cgo) || (darwin && cgo)
-// +build linux,cgo darwin,cgo
-
-package winutils
-
-import (
-	"errors"
-	"sync"
-	"time"
-)
-
-const (
-	WAIT_OBJECT_0 = 0
-	WAIT_TIMEOUT  = 258
-)
-
-var (
-	once             sync.Once
-	ErrUnsupportedOS = errors.New("not found")
-)
-
-type utils struct {
-}
-
-// INITIALIZATION
-func newUtils() (*utils, error) {
-	return nil, ErrUnsupportedOS
-}
-
-func (u *utils) Close() {
-}
-
-// openEvent opens a windows.Handle for a given event
-func (u *utils) OpenEvent(eventName string) error {
-	return ErrUnsupportedOS
-}
-
-// OpenBroadcastChannel opens up a broadcast channel to send commands to iracing
-func (u *utils) OpenBroadcastChannel(name string) error {
-	return ErrUnsupportedOS
-}
-
-// INITIALIZATION
-
-// openEvent waits for a good response for some given time
-func (u *utils) CheckValidDataEvent(timeout time.Duration) bool {
-	return false
-}
-
-// SendBroadcastMessage sends a message trough the broadcast channel
-func (u *utils) SendBroadcastMessage(id, p1, p2 uintptr) error {
-  return ErrUnsupportedOS
-}
+//go:build (linux && cgo) || (darwin && cgo)
+// +build linux,cgo darwin,cgo
+
+package winutils
+
+import (
+	"errors"
+	"sync"
+	"time"
+)
+
+const (
+	WAIT_OBJECT_0 = 0
+	WAIT_TIMEOUT  = 258
+)
+
+var (
+	once             sync.Once
+	ErrUnsupportedOS = errors.New("not found")
+)
+
+type utils struct {
+}
+
+// INITIALIZATION
+func newUtils() (*utils, error) {
+	return nil, ErrUnsupportedOS
+}
+
+func (u *utils) Close() {
+}
+
+// openEvent opens a windows.Handle for a given event
+func (u *utils) OpenEvent(eventName string) error {
+	return ErrUnsupportedOS
+}
+
+// OpenBroadcastChannel opens up a broadcast channel to send commands to iracing
+func (u *utils) OpenBroadcastChannel(name string) error {
+	return ErrUnsupportedOS
+}
+
+// INITIALIZATION
+
+// openEvent waits for a good response for some given time
+func (u *utils) CheckValidDataEvent(timeout time.Duration) bool {
+	return false
+}
+
+// SendBroadcastMessage sends a message trough the broadcast channel
+func (u *utils) SendBroadcastMessage(id, p1, p2 uintptr) error {
+  return ErrUnsupportedOS
+}