func main() {
runtime.GOMAXPROCS(runtime.NumCPU()) // Use all the machine's cores
if len(os.Args) != 2 || os.Args[1] == "-h" || os.Args[1] == "--help" {
fmt.Printf("usage: %s <file.log>\n", filepath.Base(os.Args[0]))
os.Exit(1)
}
lines := make(chan string)
done := make(chan struct{}, workers)
pageList := safeslice.New()
go readLines(os.Args[1], lines)
getRx := regexp.MustCompile(`GET[ \t]+([^ \t\n]+[.]html?)`)
for i := 0; i < workers; i++ {
go processLines(done, getRx, pageList, lines)
}
waitUntil(done)
showResults(pageList)
}
func TestSafeSlice(t *testing.T) {
store := safeslice.New()
fmt.Printf("Initially has %d items\n", store.Len())
deleted := []int{0, 2, 3, 5, 7, 20, 399, 25, 30, 1000, 91, 97, 98, 99}
var waiter sync.WaitGroup
waiter.Add(1)
go func() { // Concurrent Inserter
for i := 0; i < 100; i++ {
store.Append(fmt.Sprintf("%04X", i))
if i > 0 && i%15 == 0 {
fmt.Printf("Inserted %d items\n", store.Len())
}
}
fmt.Printf("Inserted %d items\n", store.Len())
waiter.Done()
}()
waiter.Add(1)
go func() { // Concurrent Deleter
for _, i := range deleted {
before := store.Len()
store.Delete(i)
fmt.Printf("Deleted m[%d] before=%d after=%d\n",
i, before, store.Len())
}
waiter.Done()
}()
waiter.Add(1)
go func() { // Concurrent Finder
for _, i := range deleted {
for _, j := range []int{i, i + 1} {
item := store.At(j)
if item != nil {
fmt.Printf("Found m[%d] == %s\n", j, item)
} else {
fmt.Printf("Not found m[%d]\n", j)
}
}
}
waiter.Done()
}()
waiter.Wait()
fmt.Printf("Finished with %d items\n", store.Len())
updater := func(value interface{}) interface{} {
return value.(string) + ":updated"
}
for i := 0; i < store.Len() && i < 5; i++ {
fmt.Printf("m[%d] == %s -> ", i, store.At(i))
store.Update(i, updater)
fmt.Printf("%s\n", store.At(i))
}
list := store.Close()
fmt.Println("Closed")
fmt.Printf("len == %d\n", len(list))
fmt.Println()
}