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stream.go
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stream.go
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/*
Copyright 2021 CodeNotary, Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package streamtest
import (
"crypto/rand"
"crypto/sha256"
"encoding/binary"
"github.com/codenotary/immudb/pkg/api/schema"
"io"
"io/ioutil"
"os"
)
type ChunkError struct {
C *schema.Chunk
E error
}
type ImmuServiceReceiver_StreamMock struct {
cc int
ce []*ChunkError
RecvF func() (*schema.Chunk, error)
}
func (ism *ImmuServiceReceiver_StreamMock) Recv() (*schema.Chunk, error) {
return ism.RecvF()
}
func DefaultImmuServiceReceiverStreamMock(ce []*ChunkError) *ImmuServiceReceiver_StreamMock {
m := &ImmuServiceReceiver_StreamMock{
ce: ce,
}
f := func() (*schema.Chunk, error) {
if len(m.ce) > 0 {
c := m.ce[m.cc].C
e := m.ce[m.cc].E
m.cc++
return c, e
}
return nil, nil
}
m.RecvF = f
return m
}
type ImmuServiceSender_StreamMock struct {
SendF func(*schema.Chunk) error
RecvMsgF func(m interface{}) error
}
func DefaultImmuServiceSenderStreamMock() *ImmuServiceSender_StreamMock {
return &ImmuServiceSender_StreamMock{
SendF: func(*schema.Chunk) error {
return nil
},
RecvMsgF: func(m interface{}) error {
return nil
},
}
}
func (iss *ImmuServiceSender_StreamMock) Send(c *schema.Chunk) error {
return iss.SendF(c)
}
func (iss *ImmuServiceSender_StreamMock) RecvMsg(m interface{}) error {
return iss.RecvMsgF(m)
}
func GetTrailer(payloadSize int) []byte {
ml := make([]byte, 8)
binary.BigEndian.PutUint64(ml, uint64(payloadSize))
return ml
}
func GenerateDummyFile(filename string, size int) (*os.File, error) {
tmpFile, err := ioutil.TempFile(os.TempDir(), "go-stream-bench-"+filename)
if err != nil {
return nil, err
}
b := make([]byte, size)
_, err = rand.Read(b)
if err != nil {
return nil, err
}
_, err = tmpFile.Write(b)
if err != nil {
return nil, err
}
tmpFile.Seek(0, io.SeekStart)
return tmpFile, nil
}
func GetSHA256(r io.Reader) ([]byte, error) {
h := sha256.New()
_, err := io.Copy(h, r)
if err != nil {
return nil, err
}
return h.Sum(nil), nil
}