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go.mod: bump x/sys dependency #29

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go.mod: bump x/sys dependency #29

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1484e48
go.mod: bump x/sys dependency
raggi Feb 10, 2023
3111814
npiperelay: default poll & retry on socket errors
raggi Sep 16, 2023
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2 changes: 1 addition & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -2,4 +2,4 @@ module github.com/jstarks/npiperelay

go 1.13

require golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae
require golang.org/x/sys v0.5.0
2 changes: 2 additions & 0 deletions go.sum
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@@ -1,2 +1,4 @@
golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae h1:Ih9Yo4hSPImZOpfGuA4bR/ORKTAbhZo2AbWNRCnevdo=
golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
8 changes: 7 additions & 1 deletion npiperelay.go
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Expand Up @@ -15,7 +15,7 @@ import (
const cERROR_PIPE_NOT_CONNECTED syscall.Errno = 233

var (
poll = flag.Bool("p", false, "poll until the the named pipe exists")
poll = flag.Bool("p", true, "poll until the the named pipe exists")
closeWrite = flag.Bool("s", false, "send a 0-byte message to the pipe after EOF on stdin")
closeOnEOF = flag.Bool("ep", false, "terminate on EOF reading from the pipe, even if there is more data to write")
closeOnStdinEOF = flag.Bool("ei", false, "terminate on EOF reading from stdin, even if there is more data to write")
Expand All @@ -27,6 +27,7 @@ func dialPipe(p string, poll bool) (*overlappedFile, error) {
if err != nil {
return nil, err
}
var errCount int
for {
h, err := windows.CreateFile(&p16[0], windows.GENERIC_READ|windows.GENERIC_WRITE, 0, nil, windows.OPEN_EXISTING, windows.FILE_FLAG_OVERLAPPED, 0)
if err == nil {
Expand All @@ -36,6 +37,11 @@ func dialPipe(p string, poll bool) (*overlappedFile, error) {
time.Sleep(200 * time.Millisecond)
continue
}
if err != nil && errCount < 200 {
time.Sleep(200 * time.Millisecond)
errCount++
continue
}
return nil, &os.PathError{Path: p, Op: "open", Err: err}
}
}
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