Files
mattermost/plugin/rpcplugin/ipc.go
Chris 402491b7e5 PLT-7407: Back-end plugins (#7409)
* tie back-end plugins together

* fix comment typo

* add tests and a bit of polish

* tests and polish

* add test, don't let backend executable paths escape the plugin directory
2017-09-11 10:02:02 -05:00

29 lines
838 B
Go

package rpcplugin
import (
"io"
"os"
)
// Returns a new IPC for the parent process and a set of files to pass on to the child.
//
// The returned files must be closed after the child process is started.
func NewIPC() (io.ReadWriteCloser, []*os.File, error) {
parentReader, childWriter, err := os.Pipe()
if err != nil {
return nil, nil, err
}
childReader, parentWriter, err := os.Pipe()
if err != nil {
parentReader.Close()
childWriter.Close()
return nil, nil, err
}
return NewReadWriteCloser(NewAsyncReadCloser(parentReader), NewAsyncWriteCloser(parentWriter)), []*os.File{childReader, childWriter}, nil
}
// Returns the IPC instance inherited by the process from its parent.
func InheritedIPC(fd0, fd1 uintptr) (io.ReadWriteCloser, error) {
return NewReadWriteCloser(os.NewFile(fd0, ""), os.NewFile(fd1, "")), nil
}