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Rate limit the number of outgoing gRPC messages #1759

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Merged
merged 2 commits into from
Jun 17, 2022
Merged

Rate limit the number of outgoing gRPC messages #1759

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bcb8381
Rate limit the number of outgoing gRPC messages
cmaglie Jun 14, 2022
afcc396
Update arduino/utils/stream.go
cmaglie Jun 15, 2022
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13 changes: 11 additions & 2 deletions arduino/utils/stream.go
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Original file line number Diff line number Diff line change
Expand Up @@ -15,17 +15,26 @@

package utils

import "io"
import (
"io"
"time"
)

// FeedStreamTo creates a pipe to pass data to the writer function.
// FeedStreamTo returns the io.Writer side of the pipe, on which the user can write data
func FeedStreamTo(writer func(data []byte)) io.Writer {
r, w := io.Pipe()
go func() {
data := make([]byte, 1024)
data := make([]byte, 10240)
for {
if n, err := r.Read(data); err == nil {
writer(data[:n])

// Rate limit the number of outgoing gRPC messages
// (less messages with biggger data blocks)
if n < len(data) {
time.Sleep(50 * time.Millisecond)
}
} else {
r.Close()
return
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