Update to go 1.19

utils/init_tcp.go

@@ -6,7 +6,7 @@ import (
 )
 
 func InitTCP(conn net.Conn, readBufferSize, writeBufferSize int) error {
-	tcpConn := conn.(*net.TCPConn) // nolint: forcetypeassert
+	tcpConn := conn.(*net.TCPConn) //nolint: forcetypeassert
 
 	if err := tcpConn.SetNoDelay(true); err != nil {
 		return fmt.Errorf("cannot set TCP_NO_DELAY: %w", err)

utils/read_full.go

@@ -4,14 +4,15 @@ import "io"
 
 const readFullBufferSize = 1024 + 1 // +1 because telegram opreates with blocks mod 4
 
-func ReadFull(src io.Reader) (rv []byte, err error) {
+func ReadFull(src io.Reader) ([]byte, error) {
 	buf := make([]byte, readFullBufferSize)
 	n := readFullBufferSize
+	rv := []byte{}
 
 	for n == len(buf) {
-		n, err = src.Read(buf)
+		n, err := src.Read(buf)
 		if err != nil {
-			return nil, err // nolint: wrapcheck
+			return nil, err //nolint: wrapcheck
 		}
 
 		rv = append(rv, buf[:n]...)

utils/reverse_bytes.go

@@ -6,7 +6,7 @@ func ReverseBytes(data []byte) []byte {
 	rv := make([]byte, dataLen)
 	rv[dataLen/2] = data[dataLen/2]
 
-	for i := dataLen/2 - 1; i >= 0; i-- { // nolint: gomnd
+	for i := dataLen/2 - 1; i >= 0; i-- { //nolint: gomnd
 		opp := dataLen - i - 1
 		rv[i], rv[opp] = data[opp], data[i]
 	}

utils/rlimit.go

@@ -1,25 +0,0 @@
-//go:build !windows
-// +build !windows
-
-package utils
-
-import (
-	"fmt"
-
-	"golang.org/x/sys/unix"
-)
-
-func SetLimits() error {
-	rLimit := unix.Rlimit{}
-	if err := unix.Getrlimit(unix.RLIMIT_NOFILE, &rLimit); err != nil {
-		return fmt.Errorf("cannot get rlimit: %w", err)
-	}
-
-	rLimit.Cur = rLimit.Max
-
-	if err := unix.Setrlimit(unix.RLIMIT_NOFILE, &rLimit); err != nil {
-		return fmt.Errorf("cannot set rlimit: %w", err)
-	}
-
-	return nil
-}

utils/uint24.go

@@ -3,9 +3,9 @@ package utils
 type Uint24 [3]byte
 
 func ToUint24(number uint32) Uint24 {
-	return Uint24{byte(number), byte(number >> 8), byte(number >> 16)} // nolint: gomnd
+	return Uint24{byte(number), byte(number >> 8), byte(number >> 16)} //nolint: gomnd
 }
 
 func FromUint24(number Uint24) uint32 {
-	return uint32(number[0]) + (uint32(number[1]) << 8) + (uint32(number[2]) << 16) // nolint: gomnd
+	return uint32(number[0]) + (uint32(number[1]) << 8) + (uint32(number[2]) << 16) //nolint: gomnd
 }