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usock.go
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usock.go
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package gctrl
import (
"net"
"os"
"path/filepath"
"reflect"
gos "github.com/gratonos/goutil/os"
)
const dirPerm = 0770
type OnConn func(connID int64)
type OnDisconn func(connID int64, err error)
type UnixBeforeCall func(connID int64, literal string)
type UnixAfterCall func(connID int64, results []reflect.Value, err error)
type ServeUnixConfig struct {
NoPrompt bool
NoColoring bool
OnConn OnConn
OnDisconn OnDisconn
BeforeCall UnixBeforeCall
AfterCall UnixAfterCall
}
func (this *Controller) ServeUnix(path string, config ServeUnixConfig) error {
errFn := errFunc("ServeUnix")
if err := os.MkdirAll(filepath.Dir(path), dirPerm); err != nil {
return errFn(err)
}
if err := gos.RemoveIfExists(path); err != nil {
return errFn(err)
}
listener, err := net.Listen("unix", path)
if err != nil {
return errFn(err)
}
var serial int64 = 0
for {
conn, err := listener.Accept()
if err != nil {
return errFn(err)
}
go func(connID int64) {
if config.OnConn != nil {
config.OnConn(connID)
}
err := this.serve(conn, makeServeConfig(connID, &config))
conn.Close()
if config.OnDisconn != nil {
config.OnDisconn(connID, err)
}
}(serial)
serial++
}
}
func makeServeConfig(connID int64, config *ServeUnixConfig) *ServeConfig {
var before BeforeCall
if config.BeforeCall != nil {
before = func(literal string) {
config.BeforeCall(connID, literal)
}
}
var after AfterCall
if config.AfterCall != nil {
after = func(results []reflect.Value, err error) {
config.AfterCall(connID, results, err)
}
}
return &ServeConfig{
NoPrompt: config.NoPrompt,
NoColoring: config.NoColoring,
BeforeCall: before,
AfterCall: after,
}
}