--- /dev/null
+/*
+NNCP -- Node to Node copy, utilities for store-and-forward data exchange
+Copyright (C) 2016-2017 Sergey Matveev <stargrave@stargrave.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package nncp
+
+import (
+ "os"
+ "path/filepath"
+
+ "golang.org/x/sys/unix"
+)
+
+func (ctx *Ctx) LockDir(nodeId *NodeId, xx TRxTx) (*os.File, error) {
+ ctx.ensureRxDir(nodeId)
+ lockPath := filepath.Join(ctx.Spool, nodeId.String(), string(xx)) + ".lock"
+ dirLock, err := os.OpenFile(
+ lockPath,
+ os.O_CREATE|os.O_WRONLY,
+ os.FileMode(0600),
+ )
+ if err != nil {
+ ctx.LogE("lockdir", SDS{"path": lockPath, "err": err}, "")
+ return nil, err
+ }
+ err = unix.Flock(int(dirLock.Fd()), unix.LOCK_EX|unix.LOCK_NB)
+ if err != nil {
+ ctx.LogE("lockdir", SDS{"path": lockPath, "err": err}, "")
+ dirLock.Close()
+ return nil, err
+ }
+ return dirLock, nil
+}
+
+func (ctx *Ctx) UnlockDir(fd *os.File) {
+ if fd != nil {
+ unix.Flock(int(fd.Fd()), unix.LOCK_UN)
+ fd.Close()
+ }
+}
"github.com/davecgh/go-xdr/xdr2"
"github.com/dustin/go-humanize"
"golang.org/x/crypto/blake2b"
- "golang.org/x/sys/unix"
)
func newNotification(fromTo *FromToYAML, subject string) io.Reader {
))
}
-func (ctx *Ctx) LockDir(nodeId *NodeId, xx TRxTx) (*os.File, error) {
- ctx.ensureRxDir(nodeId)
- lockPath := filepath.Join(ctx.Spool, nodeId.String(), string(xx)) + ".lock"
- dirLock, err := os.OpenFile(
- lockPath,
- os.O_CREATE|os.O_WRONLY,
- os.FileMode(0600),
- )
- if err != nil {
- ctx.LogE("lockdir", SDS{"path": lockPath, "err": err}, "")
- return nil, err
- }
- err = unix.Flock(int(dirLock.Fd()), unix.LOCK_EX|unix.LOCK_NB)
- if err != nil {
- ctx.LogE("lockdir", SDS{"path": lockPath, "err": err}, "")
- dirLock.Close()
- return nil, err
- }
- return dirLock, nil
-}
-
-func (ctx *Ctx) UnlockDir(fd *os.File) {
- if fd != nil {
- unix.Flock(int(fd.Fd()), unix.LOCK_UN)
- fd.Close()
- }
-}
-
func (ctx *Ctx) Toss(nodeId *NodeId, nice uint8, dryRun bool) bool {
dirLock, err := ctx.LockDir(nodeId, TRx)
if err != nil {