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refactor: abusing goroutines and channel (#1561)

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* refactor: abusing goroutines

* fix: trim data prefix

* refactor: move functions to render package

* refactor: add back trim & flush

---------

Co-authored-by: JustSong <quanpengsong@gmail.com>
This commit is contained in:
zijiren
2024-06-30 18:36:33 +08:00
committed by GitHub
parent ae1cd29f94
commit b21b3b5b46
14 changed files with 614 additions and 728 deletions
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91
relay/adaptor/ali/main.go
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@@ -3,15 +3,17 @@ package ali
import (
"bufio"
"encoding/json"
"github.com/songquanpeng/one-api/common/render"
"io"
"net/http"
"strings"
"github.com/gin-gonic/gin"
"github.com/songquanpeng/one-api/common"
"github.com/songquanpeng/one-api/common/helper"
"github.com/songquanpeng/one-api/common/logger"
"github.com/songquanpeng/one-api/relay/adaptor/openai"
"github.com/songquanpeng/one-api/relay/model"
"io"
"net/http"
"strings"
)
// https://help.aliyun.com/document_detail/613695.html?spm=a2c4g.2399480.0.0.1adb778fAdzP9w#341800c0f8w0r
@@ -181,56 +183,43 @@ func StreamHandler(c *gin.Context, resp *http.Response) (*model.ErrorWithStatusC
}
return 0, nil, nil
})
dataChan := make(chan string)
stopChan := make(chan bool)
go func() {
for scanner.Scan() {
data := scanner.Text()
if len(data) < 5 { // ignore blank line or wrong format
continue
}
if data[:5] != "data:" {
continue
}
data = data[5:]
dataChan <- data
}
stopChan <- true
}()
common.SetEventStreamHeaders(c)
//lastResponseText := ""
c.Stream(func(w io.Writer) bool {
select {
case data := <-dataChan:
var aliResponse ChatResponse
err := json.Unmarshal([]byte(data), &aliResponse)
if err != nil {
logger.SysError("error unmarshalling stream response: " + err.Error())
return true
}
if aliResponse.Usage.OutputTokens != 0 {
usage.PromptTokens = aliResponse.Usage.InputTokens
usage.CompletionTokens = aliResponse.Usage.OutputTokens
usage.TotalTokens = aliResponse.Usage.InputTokens + aliResponse.Usage.OutputTokens
}
response := streamResponseAli2OpenAI(&aliResponse)
if response == nil {
return true
}
//response.Choices[0].Delta.Content = strings.TrimPrefix(response.Choices[0].Delta.Content, lastResponseText)
//lastResponseText = aliResponse.Output.Text
jsonResponse, err := json.Marshal(response)
if err != nil {
logger.SysError("error marshalling stream response: " + err.Error())
return true
}
c.Render(-1, common.CustomEvent{Data: "data: " + string(jsonResponse)})
return true
case <-stopChan:
c.Render(-1, common.CustomEvent{Data: "data: [DONE]"})
return false
for scanner.Scan() {
data := scanner.Text()
if len(data) < 5 || data[:5] != "data:" {
continue
}
})
data = data[5:]
var aliResponse ChatResponse
err := json.Unmarshal([]byte(data), &aliResponse)
if err != nil {
logger.SysError("error unmarshalling stream response: " + err.Error())
continue
}
if aliResponse.Usage.OutputTokens != 0 {
usage.PromptTokens = aliResponse.Usage.InputTokens
usage.CompletionTokens = aliResponse.Usage.OutputTokens
usage.TotalTokens = aliResponse.Usage.InputTokens + aliResponse.Usage.OutputTokens
}
response := streamResponseAli2OpenAI(&aliResponse)
if response == nil {
continue
}
err = render.ObjectData(c, response)
if err != nil {
logger.SysError(err.Error())
}
}
if err := scanner.Err(); err != nil {
logger.SysError("error reading stream: " + err.Error())
}
render.Done(c)
err := resp.Body.Close()
if err != nil {
return openai.ErrorWrapper(err, "close_response_body_failed", http.StatusInternalServerError), nil