// startCommand starts up a command and creates a stdin pipe and a buffered
// stdout & stderr pipes, wrapped in a wrappedCmd. The stdout buffer will be of stdoutBufSize
// bytes.
func startCommand(command string, args ...string) (*wrappedCmd, error) {
cmd := exec.Command(command, args...)
stdout, err := cmd.StdoutPipe()
if err != nil {
return nil, err
}
stderr, err := cmd.StderrPipe()
if err != nil {
return nil, err
}
stdin, err := cmd.StdinPipe()
if err != nil {
return nil, err
}
tracerx.Printf("run_command: %s %s", command, strings.Join(args, " "))
if err := cmd.Start(); err != nil {
return nil, err
}
return &wrappedCmd{
stdin,
bufio.NewReaderSize(stdout, stdoutBufSize),
bufio.NewReaderSize(stderr, stdoutBufSize),
cmd,
}, nil
}
func (c *RedisCmd) parseRESP() (interface{}, error) {
//reader := bytes.NewReader(c.data)
//bufio 的 NewReader Size默认值比reader大的话，会reset多损耗性能
//br := bufio.NewReaderSize(reader, reader.Len())
if c.r == nil {
c.r = bytes.NewReader(c.data)
c.br = bufio.NewReaderSize(c.r, c.r.Len())
} else {
c.r.Reset(c.data)
//reset并不能扩充buffer的大小，所以用buffered并不能得出剩余数据的大小，而仅仅是buff里面还未读出来的，可能还有部分
//数据在c.r中
//c.br.Reset(c.r)
c.br = bufio.NewReaderSize(c.r, c.r.Len())
}
if resp, neededDataLen, err := parseRESP(c.br); err != nil {
if err == ErrUnexpectedRESPEOF || err == ErrBufferFullRESP {
//数据还没收完
}
c.neededDataLen = neededDataLen
return nil, err
} else {
c.neededDataLen = 0
return resp, nil
}
}
// *****************************************************************************
// CREATION OF INDEX FILE
// *****************************************************************************
func (g *YIndex) CreateIndexFiles() (int, error) {
count := 0
// -------------------------------------------------------------------------
// OPEN AN INPUT FILE
// -------------------------------------------------------------------------
fi, err := os.Open(g.InputFileName)
if err != nil {
return count, errors.New(
fmt.Sprintf("Cannot open file <%s>.", g.InputFileName),
)
}
bfi := bufio.NewReaderSize(fi, 1*1024*1024)
defer fi.Close()
// -------------------------------------------------------------------------
// CREATE MAIN INDEXING FILE
// -------------------------------------------------------------------------
fo1, err := os.Create(g.InputFileName + ".yidx1")
if err != nil {
return count, errors.New(
fmt.Sprintf("Cannot create main indexing file <%s.yidx1>.",
g.InputFileName+".yidx1"),
)
}
bfo1 := bufio.NewWriter(fo1)
count, err = g.createIndexFile1(bfi, bfo1)
if err != nil {
return count, err
}
fo1.Close()
// -------------------------------------------------------------------------
// CREATE DOUBLE INDEXING FILE (THISFILE WILL BE LOADED INTO MEMORY)
// -------------------------------------------------------------------------
fi1, err := os.Open(g.InputFileName + ".yidx1")
if err != nil {
return count, errors.New(
fmt.Sprintf("Cannot read main indexing file <%s>.",
g.InputFileName+".yidx1"),
)
}
bfi1 := bufio.NewReaderSize(fi1, 1*1024*1024)
defer fi1.Close()
fo2, err := os.Create(g.InputFileName + ".yidx2")
if err != nil {
return count, errors.New(
fmt.Sprintf("Cannot create double indexing file <%s>.",
g.InputFileName+".yidx2"),
)
}
bfo2 := bufio.NewWriter(fo2)
count, err = g.createIndexFile2(bfi1, bfo2)
if err != nil {
return count, err
}
fo2.Close()
return count, nil
}
func main() {
Log.SetHandler(log15.StderrHandler)
flagConnect := flag.String("connect", os.Getenv("BRUNO_ID"), "database connection string")
flagCharset := flag.String("charset", term.GetTTYEncodingName(), "input charset of the csv")
flagTruncate := flag.Bool("truncate", false, "truncate table?")
flagSep := flag.String("sep", ";", "csv field separator")
flag.Parse()
var enc encoding.Encoding
if *flagCharset != "" {
enc = text.GetEncoding(*flagCharset)
if enc == nil {
Log.Error("unknown charset " + *flagCharset)
os.Exit(1)
}
}
db, err := sql.Open("ora", *flagConnect)
if err != nil {
Log.Crit("connect to db", "dsn", *flagConnect, "error", err)
os.Exit(1)
}
defer db.Close()
fh, err := os.Open(flag.Arg(0))
if err != nil {
Log.Crit("open csv", "file", flag.Arg(0), "error", err)
os.Exit(1)
}
defer fh.Close()
r := io.Reader(fh)
if enc != nil {
Log.Debug("NewReader", "encoding", enc)
r = text.NewReader(bufio.NewReaderSize(r, 1<<20), enc)
}
if *flagTruncate {
if _, err = db.Exec("TRUNCATE TABLE " + flag.Arg(1)); err != nil {
Log.Error("TRUNCATE", "table", flag.Arg(1), "error", err)
os.Exit(1)
}
}
if os.Getenv("GOMAXPROCS") == "" {
Log.Info("Setting GOMAXPROCS", "numCPU", runtime.NumCPU())
runtime.GOMAXPROCS(runtime.NumCPU())
}
cr := csv.NewReader(bufio.NewReaderSize(r, 16<<20))
cr.Comma = ([]rune(*flagSep))[0]
cr.TrimLeadingSpace = true
cr.LazyQuotes = true
if err := load(db, flag.Arg(1), cr); err != nil {
Log.Error("load", "error", err)
os.Exit(2)
}
}
// handleConnection wraps the in and out connection endpoints for transfer between them.
func handleConnection(clientConn net.Conn, serverConn net.Conn, txHandlers []func([]byte), rxHandlers []func([]byte)) {
clientReader := bufio.NewReaderSize(clientConn, 8192)
clientWriter := bufio.NewWriterSize(clientConn, 8192)
serverReader := bufio.NewReaderSize(serverConn, 8192)
serverWriter := bufio.NewWriterSize(serverConn, 8192)
go pipeReaderToWriter(clientReader, serverWriter, txHandlers)
go pipeReaderToWriter(serverReader, clientWriter, rxHandlers)
}
func TestPeek(t *testing.T) {
p := make([]byte, 10)
// string is 16 (minReadBufferSize) long.
buf := bufio.NewReaderSize(strings.NewReader("abcdefghijklmnop"), minReadBufferSize)
if s, err := buf.Peek(1); string(s) != "a" || err != nil {
t.Fatalf("want %q got %q, err=%v", "a", string(s), err)
}
if s, err := buf.Peek(4); string(s) != "abcd" || err != nil {
t.Fatalf("want %q got %q, err=%v", "abcd", string(s), err)
}
if _, err := buf.Peek(32); err != bufio.ErrBufferFull {
t.Fatalf("want ErrBufFull got %v", err)
}
if _, err := buf.Read(p[0:3]); string(p[0:3]) != "abc" || err != nil {
t.Fatalf("want %q got %q, err=%v", "abc", string(p[0:3]), err)
}
if s, err := buf.Peek(1); string(s) != "d" || err != nil {
t.Fatalf("want %q got %q, err=%v", "d", string(s), err)
}
if s, err := buf.Peek(2); string(s) != "de" || err != nil {
t.Fatalf("want %q got %q, err=%v", "de", string(s), err)
}
if _, err := buf.Read(p[0:3]); string(p[0:3]) != "def" || err != nil {
t.Fatalf("want %q got %q, err=%v", "def", string(p[0:3]), err)
}
if s, err := buf.Peek(4); string(s) != "ghij" || err != nil {
t.Fatalf("want %q got %q, err=%v", "ghij", string(s), err)
}
if _, err := buf.Read(p[0:]); string(p[0:]) != "ghijklmnop" || err != nil {
t.Fatalf("want %q got %q, err=%v", "ghijklmnop", string(p[0:minReadBufferSize]), err)
}
if s, err := buf.Peek(0); string(s) != "" || err != nil {
t.Fatalf("want %q got %q, err=%v", "", string(s), err)
}
if _, err := buf.Peek(1); err != io.EOF {
t.Fatalf("want EOF got %v", err)
}
// Test for issue 3022, not exposing a reader's error on a successful Peek.
buf = bufio.NewReaderSize(dataAndEOFReader("abcd"), 32)
if s, err := buf.Peek(2); string(s) != "ab" || err != nil {
t.Errorf(`Peek(2) on "abcd", EOF = %q, %v; want "ab", nil`, string(s), err)
}
if s, err := buf.Peek(4); string(s) != "abcd" || err != nil {
t.Errorf(`Peek(4) on "abcd", EOF = %q, %v; want "abcd", nil`, string(s), err)
}
if n, err := buf.Read(p[0:5]); string(p[0:n]) != "abcd" || err != nil {
t.Fatalf("Read after peek = %q, %v; want abcd, EOF", p[0:n], err)
}
if n, err := buf.Read(p[0:1]); string(p[0:n]) != "" || err != io.EOF {
t.Fatalf(`second Read after peek = %q, %v; want "", EOF`, p[0:n], err)
}
}
func (cmd *cmdSync) SendPSyncCmd(master, passwd string) (pipe.Reader, int64) {
c := openNetConn(master, passwd)
br := bufio.NewReaderSize(c, ReaderBufferSize)
bw := bufio.NewWriterSize(c, WriterBufferSize)
runid, offset, wait := sendPSyncFullsync(br, bw)
log.Infof("psync runid = %s offset = %d, fullsync", runid, offset)
var nsize int64
for nsize == 0 {
select {
case nsize = <-wait:
if nsize == 0 {
log.Info("+")
}
case <-time.After(time.Second):
log.Info("-")
}
}
piper, pipew := pipe.NewSize(ReaderBufferSize)
go func() {
defer pipew.Close()
p := make([]byte, 8192)
for rdbsize := int(nsize); rdbsize != 0; {
rdbsize -= iocopy(br, pipew, p, rdbsize)
}
for {
n, err := cmd.PSyncPipeCopy(c, br, bw, offset, pipew)
if err != nil {
log.PanicErrorf(err, "psync runid = %s, offset = %d, pipe is broken", runid, offset)
}
offset += n
for {
time.Sleep(time.Second)
c = openNetConnSoft(master, passwd)
if c != nil {
log.Infof("psync reopen connection, offset = %d", offset)
break
} else {
log.Infof("psync reopen connection, failed")
}
}
authPassword(c, passwd)
br = bufio.NewReaderSize(c, ReaderBufferSize)
bw = bufio.NewWriterSize(c, WriterBufferSize)
sendPSyncContinue(br, bw, runid, offset)
}
}()
return piper, nsize
}
func TestNewReaderSizeIdempotent(t *testing.T) {
const BufSize = 1000
b := bufio.NewReaderSize(bytes.NewBufferString("hello world"), BufSize)
// Does it recognize itself?
b1 := bufio.NewReaderSize(b, BufSize)
if b1 != b {
t.Error("bufio.NewReaderSize did not detect underlying Reader")
}
// Does it wrap if existing buffer is too small?
b2 := bufio.NewReaderSize(b, 2*BufSize)
if b2 == b {
t.Error("bufio.NewReaderSize did not enlarge buffer")
}
}
// Return a buffered reader from an io.Reader
// If f == "-", then it will attempt to read from os.Stdin.
// If the file is gzipped, it will be read as such.
func Buf(r io.Reader) *Reader {
b := bufio.NewReaderSize(r, getSize())
var rdr *gzip.Reader
if is, err := IsGzip(b); err != nil && err != io.EOF {
log.Fatal(err)
} else if is {
rdr, err = gzip.NewReader(b)
if err != nil {
log.Fatal(err)
}
b = bufio.NewReaderSize(rdr, getSize())
}
return &Reader{b, r, rdr}
}
// this method returns an array or responses that client has to handle
// considering adding error to the reply type but i don't know if we really need it
// response can contain nil's!
func (client *Client) executeAnyArrayCommand(command []byte) ([]*Reply, error) {
_, err := client.runCommand(command)
if err != nil {
return nil, err
}
reader := bufio.NewReaderSize(client.connection, bufSize)
result, err := readResponse(reader)
if err != nil {
return nil, err
}
if res, ok := result.Response.([]interface{}); ok {
result_array := make([]*Reply, len(res))
for i, elem := range res {
origin, _ := elem.(*Reply)
result_array[i] = origin
}
return result_array, nil
} else {
return nil, errors.New("Internal reddan error, unexpected response type")
}
}
func (client *Client) executeStringArrayCommand(command []byte) ([]string, error) {
_, err := client.runCommand(command)
if err != nil {
return nil, err
}
reader := bufio.NewReaderSize(client.connection, bufSize)
result, err := readResponse(reader)
if err != nil {
return nil, err
}
if res, ok := result.Response.([]interface{}); ok {
result_array := make([]string, len(res))
// TODO requires work on errors and refactor
for i, elem := range res {
origin, _ := elem.(*Reply) // change _ to ok and refactor Array responses
el := origin.Response.([]byte)
result_array[i] = string(el)
}
return result_array, nil
} else {
return nil, errors.New("Internal reddan error, unexpected response type")
}
}
func (s *ProxyServer) handleClient(w http.ResponseWriter, r *http.Request) error {
ip, _, _ := net.SplitHostPort(r.RemoteAddr)
cs := &Session{ip: ip, enc: json.NewEncoder(w)}
defer r.Body.Close()
connbuff := bufio.NewReaderSize(r.Body, MaxReqSize)
for {
data, isPrefix, err := connbuff.ReadLine()
if isPrefix {
log.Printf("Socket flood detected")
return errors.New("Socket flood")
} else if err == io.EOF {
break
}
if len(data) > 1 {
var req JSONRpcReq
err = json.Unmarshal(data, &req)
if err != nil {
log.Printf("Malformed request: %v", err)
return err
}
cs.handleMessage(s, r, &req)
}
}
return nil
}
func (s *Server) newConn(rwc net.Conn) (c *conn, err error) {
c = new(conn)
c.server = s
c.conn = rwc
c.rwc = bufio.NewReadWriter(bufio.NewReaderSize(rwc, 1048576), bufio.NewWriter(rwc))
return c, nil
}
// Creates and opens a new connection to server per ConnectionSpec.
// The new connection is wrapped by a new connHdl with its bufio.Reader
// delegating to the net.Conn's reader.
//
func newConnHdl (spec *ConnectionSpec) (hdl *connHdl, err os.Error) {
here := "newConnHdl";
if hdl = new(connHdl); hdl == nil {
return nil, withNewError (fmt.Sprintf("%s(): failed to allocate connHdl", here));
}
addr := fmt.Sprintf("%s:%d", spec.host, spec.port);
raddr, e:= net.ResolveTCPAddr(addr);
if e != nil {
return nil, withNewError (fmt.Sprintf("%s(): failed to resolve remote address %s", here, addr));
}
conn, e:= net.DialTCP(TCP, nil, raddr);
switch {
case e != nil:
err = withOsError (fmt.Sprintf("%s(): could not open connection", here), e);
case conn == nil:
err = withNewError (fmt.Sprintf("%s(): net.Dial returned nil, nil (?)", here));
default:
configureConn(conn, spec);
hdl.spec = spec;
hdl.conn = conn;
bufsize := 4096;
hdl.reader, e = bufio.NewReaderSize(conn, bufsize);
if e != nil {
err = withNewError (fmt.Sprintf("%s(): bufio.NewReaderSize (%d) error", here, bufsize));
}
else {
if debug() {log.Stdout("[Go-Redis] Opened SynchConnection connection to ", addr);}
}
}
return hdl, err;
}
func sbclBin(path string) string {
u := uname_m() + "-" + uname()
condPrintf(1, "open %s\n", path)
in, err := os.Open(path)
if err != nil {
panic(err)
}
defer in.Close()
r := bufio.NewReaderSize(in, 4096)
doc, err := html.Parse(r)
if err != nil {
panic(err)
}
var f func(n *html.Node) string
f = func(n *html.Node) string {
if n.Type == html.ElementNode && n.Data == "a" {
for _, attr := range n.Attr {
if k, v := attr.Key, attr.Val; k == "href" && (v[len(v)-3:] == "bz2" || v[len(v)-3:] == "msi") && strings.Index(v, u) != -1 {
return strings.Split(v, "-")[1]
}
}
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
if result := f(c); result != "" {
return result
}
}
return ""
}
return f(doc)
}
func doForEachLine(do stringOperation, filename string) {
//open the file
file, err := os.Open(filename)
if err != nil {
panic(err)
}
defer func() {
if err := file.Close(); err != nil {
panic(err)
}
}()
reader := bufio.NewReaderSize(file, 4*1024)
var endof bool = false
for !endof {
line, isPrefix, err := reader.ReadLine()
if err != nil && err != io.EOF {
panic(err)
}
if err == io.EOF {
endof = true
} else {
//do stuff to line
do(string(line))
}
if isPrefix {
fmt.Println("buffer not large enough")
return
}
}
}
func (codecType *BufioCodecType) NewDecoder(r io.Reader) mudoo.Decoder {
return &bufioDecoder{
Base: codecType.Base.NewDecoder(
bufio.NewReaderSize(r, codecType.ReadBufferSize),
),
}
}
// returns an input channel with a raw key, value without collating keys
func RawInternalInputProtocol(input io.Reader) <-chan KeyValue {
out := make(chan KeyValue, 100)
go func() {
var line []byte
var lineErr error
r := bufio.NewReaderSize(input, 1024*1024*2)
var lastKey []byte
for {
if lineErr == io.EOF {
break
}
line, lineErr = r.ReadBytes('\n')
if len(line) <= 1 {
continue
}
chunks := bytes.SplitN(line, []byte("\t"), 2)
if len(chunks) != 2 {
Counter("RawInternalInputProtocol", "invalid line - no tab", 1)
log.Printf("invalid line. no tab - %s", line)
lastKey = lastKey[:0]
continue
}
out <- KeyValue{chunks[0], chunks[1]}
}
close(out)
}()
return out
}
func TestReader(t *testing.T) {
var texts [31]string
str := ""
all := ""
for i := 0; i < len(texts)-1; i++ {
texts[i] = str + "\n"
all += texts[i]
str += string(i%26 + 'a')
}
texts[len(texts)-1] = all
for h := 0; h < len(texts); h++ {
text := texts[h]
for i := 0; i < len(readMakers); i++ {
for j := 0; j < len(bufreaders); j++ {
for k := 0; k < len(bufsizes); k++ {
readmaker := readMakers[i]
bufreader := bufreaders[j]
bufsize := bufsizes[k]
read := readmaker.fn(bytes.NewBufferString(text))
buf := bufio.NewReaderSize(read, bufsize)
s := bufreader.fn(buf)
if s != text {
t.Errorf("reader=%s fn=%s bufsize=%d want=%q got=%q",
readmaker.name, bufreader.name, bufsize, text, s)
}
}
}
}
}
}
// Creates and opens a new connection to server per ConnectionSpec.
// The new connection is wrapped by a new connHdl with its bufio.Reader
// delegating to the net.Conn's reader.
//
func newConnHdl(spec *ConnectionSpec) (hdl *connHdl, err Error) {
here := "newConnHdl"
if hdl = new(connHdl); hdl == nil {
return nil, NewError(SYSTEM_ERR, fmt.Sprintf("%s(): failed to allocate connHdl", here))
}
addr := fmt.Sprintf("%s:%d", spec.host, spec.port)
raddr, e := net.ResolveTCPAddr(addr)
if e != nil {
msg := fmt.Sprintf("%s(): failed to resolve remote address %s", here, addr)
return nil, NewErrorWithCause(SYSTEM_ERR, msg, e)
}
conn, e := net.DialTCP(TCP, nil, raddr)
switch {
case e != nil:
err = NewErrorWithCause(SYSTEM_ERR, fmt.Sprintf("%s(): could not open connection", here), e)
case conn == nil:
err = NewError(SYSTEM_ERR, fmt.Sprintf("%s(): net.Dial returned nil, nil (?)", here))
default:
configureConn(conn, spec)
hdl.spec = spec
hdl.conn = conn
bufsize := 4096
hdl.reader, e = bufio.NewReaderSize(conn, bufsize)
if e != nil {
msg := fmt.Sprintf("%s(): bufio.NewReaderSize (%d) error", here, bufsize)
err = NewErrorWithCause(SYSTEM_ERR, msg, e)
} else {
if err = hdl.onConnect(); err == nil && debug() {
log.Stdout("[Go-Redis] Opened SynchConnection connection to ", addr)
}
}
}
return hdl, err
}
func NewClientV2(conn net.Conn) *ClientV2 {
var identifier string
if conn != nil {
identifier, _, _ = net.SplitHostPort(conn.RemoteAddr().String())
}
return &ClientV2{
Conn: conn,
// ReadyStateChan has a buffer of 1 to guarantee that in the event
// there is a race the state update is not lost
ReadyStateChan: make(chan int, 1),
ExitChan: make(chan int),
ConnectTime: time.Now(),
ShortIdentifier: identifier,
LongIdentifier: identifier,
Reader: bufio.NewReaderSize(conn, 16*1024),
Writer: bufio.NewWriterSize(conn, 16*1024),
State: nsq.StateInit,
SubEventChan: make(chan *Channel, 1),
// heartbeats are client configurable but default to 30s
HeartbeatInterval: nsqd.options.clientTimeout / 2,
HeartbeatUpdateChan: make(chan time.Duration, 1),
}
}
func readFile(fileName string) {
f, _ := os.Open(fileName)
defer f.Close()
r := bufio.NewReaderSize(f, 2*1024)
line, isPrefix, err := r.ReadLine()
i := 1
for err == nil && !isPrefix {
s := string(line)
if i == 1 {
// Find Iam
t := strings.Split(s, ":")
Iam = Node{t[0], t[1], false, false, false}
} else {
k := strings.Split(s, ":")
if k[0] == "initiator" {
// Find if initiator
iniFlag = true
leader = k[2]
fmt.Println("I've just set the Leader: ", k[2])
} else {
// Find neighbors
neighbors = append(neighbors, Node{k[0], k[1], false, false, false})
}
}
i++
line, isPrefix, err = r.ReadLine()
}
}
// returns a channel of simplejson.Json objects. This channel will be closed
// when the input stream closes. Errors will be logged
func JsonInputProtocol(input io.Reader) <-chan *simplejson.Json {
out := make(chan *simplejson.Json, 100)
go func() {
var line []byte
var lineErr error
r := bufio.NewReaderSize(input, 1024*1024*2)
for {
if lineErr == io.EOF {
break
}
line, lineErr = r.ReadBytes('\n')
if len(line) <= 1 {
continue
}
data, err := simplejson.NewJson(line)
if err != nil {
Counter("JsonInputProtocol", "invalid line", 1)
log.Printf("%s - failed parsing %s", err, line)
} else {
out <- data
}
}
close(out)
}()
return out
}
// NewStream returns a new buffered I/O channel. channel is an underlying I/O channel that implements io.ReadWriteCloser.
func NewStream(channel io.ReadWriteCloser) *Stream {
r := bufio.NewReaderSize(channel, 0xFFFF)
return &Stream{
channel: channel,
reader: r,
}
}
func newConn(conn net.Conn, isServer bool, readBufferSize, writeBufferSize int) *Conn {
mu := make(chan bool, 1)
mu <- true
if readBufferSize == 0 {
readBufferSize = defaultReadBufferSize
}
if readBufferSize < maxControlFramePayloadSize {
readBufferSize = maxControlFramePayloadSize
}
if writeBufferSize == 0 {
writeBufferSize = defaultWriteBufferSize
}
c := &Conn{
isServer: isServer,
br: bufio.NewReaderSize(conn, readBufferSize),
conn: conn,
mu: mu,
readFinal: true,
writeBuf: make([]byte, writeBufferSize+maxFrameHeaderSize),
writeFrameType: noFrame,
writePos: maxFrameHeaderSize,
}
c.SetPingHandler(nil)
c.SetPongHandler(nil)
return c
}
func testReadLine(t *testing.T, input []byte) {
//for stride := 1; stride < len(input); stride++ {
for stride := 1; stride < 2; stride++ {
done := 0
reader := testReader{input, stride}
l := bufio.NewReaderSize(&reader, len(input)+1)
for {
line, isPrefix, err := l.ReadLine()
if len(line) > 0 && err != nil {
t.Errorf("ReadLine returned both data and error: %s", err)
}
if isPrefix {
t.Errorf("ReadLine returned prefix")
}
if err != nil {
if err != io.EOF {
t.Fatalf("Got unknown error: %s", err)
}
break
}
if want := testOutput[done : done+len(line)]; !bytes.Equal(want, line) {
t.Errorf("Bad line at stride %d: want: %x got: %x", stride, want, line)
}
done += len(line)
}
if done != len(testOutput) {
t.Errorf("ReadLine didn't return everything: got: %d, want: %d (stride: %d)", done, len(testOutput), stride)
}
}
}
// read
func (self *Tunnel) PumpOut() (err error) {
defer close(self.outputCh)
var header struct {
Linkid uint16
Sz uint8
}
rd := bufio.NewReaderSize(self.conn, 4096)
for {
err = binary.Read(rd, binary.LittleEndian, &header)
if err != nil {
Error("read tunnel failed:%s", err.Error())
return
}
var data []byte
// if header.Sz == 0, it's ok too
data = make([]byte, header.Sz)
c := 0
for c < int(header.Sz) {
var n int
n, err = rd.Read(data[c:])
if err != nil {
Error("read tunnel failed:%s", err.Error())
return
}
c += n
}
self.outputCh <- TunnelPayload{header.Linkid, data}
}
return
}
func TestLineTooLong(t *testing.T) {
data := make([]byte, 0)
for i := 0; i < minReadBufferSize*5/2; i++ {
data = append(data, '0'+byte(i%10))
}
buf := bytes.NewBuffer(data)
l := bufio.NewReaderSize(buf, minReadBufferSize)
line, isPrefix, err := l.ReadLine()
if !isPrefix || !bytes.Equal(line, data[:minReadBufferSize]) || err != nil {
t.Errorf("bad result for first line: got %q want %q %v", line, data[:minReadBufferSize], err)
}
data = data[len(line):]
line, isPrefix, err = l.ReadLine()
if !isPrefix || !bytes.Equal(line, data[:minReadBufferSize]) || err != nil {
t.Errorf("bad result for second line: got %q want %q %v", line, data[:minReadBufferSize], err)
}
data = data[len(line):]
line, isPrefix, err = l.ReadLine()
if isPrefix || !bytes.Equal(line, data[:minReadBufferSize/2]) || err != nil {
t.Errorf("bad result for third line: got %q want %q %v", line, data[:minReadBufferSize/2], err)
}
line, isPrefix, err = l.ReadLine()
if isPrefix || err == nil {
t.Errorf("expected no more lines: %x %s", line, err)
}
}
func ParseFile(fname string) chan *TsPkt {
pkts := make(chan *TsPkt)
go func() {
f, err := os.Open(fname)
if err != nil {
panic(err)
}
defer f.Close()
reader := bufio.NewReaderSize(f, readBufSize)
var count int64
for {
buf := make([]byte, TSPacketSize)
n, err := io.ReadFull(reader, buf)
if n == 0 {
if err != io.EOF {
panic(err)
}
break
}
pkt := ParseTsPkt(buf)
if pkt.SyncByte != 0x47 {
panic("Sync byte error")
}
pkt.Pos = count
pkts <- pkt
count += 1
}
close(pkts)
}()
return pkts
}
func TestReadEmptyBuffer(t *testing.T) {
l := bufio.NewReaderSize(new(bytes.Buffer), minReadBufferSize)
line, isPrefix, err := l.ReadLine()
if err != io.EOF {
t.Errorf("expected EOF from ReadLine, got '%s' %t %s", line, isPrefix, err)
}
}
