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author | Matthew Heon <mheon@redhat.com> | 2020-11-16 14:32:12 -0500 |
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committer | Matthew Heon <mheon@redhat.com> | 2020-12-01 12:56:55 -0500 |
commit | 594ac4a14658a90ad7bc5541dab6349a0c629a5c (patch) | |
tree | d43d561d74c6331166bca6f5101b7d0fd8d8bd1d /vendor/github.com/coreos/go-systemd/activation/packetconns.go | |
parent | 429d9492f85faf4c3a595b9d7b2a38743a4b8e42 (diff) | |
download | podman-594ac4a14658a90ad7bc5541dab6349a0c629a5c.tar.gz podman-594ac4a14658a90ad7bc5541dab6349a0c629a5c.tar.bz2 podman-594ac4a14658a90ad7bc5541dab6349a0c629a5c.zip |
Add API for communicating with Docker volume plugins
Docker provides extensibility through a plugin system, of which
several types are available. This provides an initial library API
for communicating with one type of plugins, volume plugins.
Volume plugins allow for an external service to create and manage
a volume on Podman's behalf.
This does not integrate the plugin system into Libpod or Podman
yet; that will come in subsequent pull requests.
Signed-off-by: Matthew Heon <mheon@redhat.com>
Diffstat (limited to 'vendor/github.com/coreos/go-systemd/activation/packetconns.go')
-rw-r--r-- | vendor/github.com/coreos/go-systemd/activation/packetconns.go | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/vendor/github.com/coreos/go-systemd/activation/packetconns.go b/vendor/github.com/coreos/go-systemd/activation/packetconns.go new file mode 100644 index 000000000..a97206785 --- /dev/null +++ b/vendor/github.com/coreos/go-systemd/activation/packetconns.go @@ -0,0 +1,38 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package activation + +import ( + "net" +) + +// PacketConns returns a slice containing a net.PacketConn for each matching socket type +// passed to this process. +// +// The order of the file descriptors is preserved in the returned slice. +// Nil values are used to fill any gaps. For example if systemd were to return file descriptors +// corresponding with "udp, tcp, udp", then the slice would contain {net.PacketConn, nil, net.PacketConn} +func PacketConns() ([]net.PacketConn, error) { + files := Files(true) + conns := make([]net.PacketConn, len(files)) + + for i, f := range files { + if pc, err := net.FilePacketConn(f); err == nil { + conns[i] = pc + f.Close() + } + } + return conns, nil +} |