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device: add UAPI helper methods

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2020-12-22 14:30:57 +01:00
parent 890cc06ed5
commit 40dfc85def
1 changed files with 21 additions and 2 deletions
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23
device/uapi.go
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@ -7,6 +7,7 @@ package device
import (
"bufio"
"bytes"
"errors"
"fmt"
"io"
@ -32,7 +33,7 @@ func (s IPCError) ErrorCode() int64 {
return s.int64
}
func (device *Device) IpcGetOperation(socket *bufio.Writer) error {
func (device *Device) IpcGetOperation(w io.StringWriter) error {
lines := make([]string, 0, 100)
send := func(line string) {
lines = append(lines, line)
@ -98,7 +99,7 @@ func (device *Device) IpcGetOperation(socket *bufio.Writer) error {
// send lines (does not require resource locks)
for _, line := range lines {
_, err := socket.WriteString(line + "\n")
_, err := w.WriteString(line + "\n")
if err != nil {
return &IPCError{ipc.IpcErrorIO}
}
@ -396,6 +397,24 @@ func (device *Device) IpcSetOperation(r io.Reader) error {
return nil
}
func (device *Device) IpcGet() (string, error) {
buf := new(bytes.Buffer)
writer := bufio.NewWriter(buf)
if err := device.IpcGetOperation(writer); err != nil {
return "", err
}
if err := writer.Flush(); err != nil {
return "", err
}
return buf.String(), nil
}
func (device *Device) IpcSet(uapiConf string) error {
return device.IpcSetOperation(bufio.NewReader(strings.NewReader(uapiConf)))
}
func (device *Device) IpcHandle(socket net.Conn) {
// create buffered read/writer