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author | Chris <ccbrown112@gmail.com> | 2017-08-16 17:23:38 -0500 |
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committer | GitHub <noreply@github.com> | 2017-08-16 17:23:38 -0500 |
commit | f80d50adbddf55a043dfcab5b47d7c1e22749b7d (patch) | |
tree | 5deb606debb6322716c9cdcc6c58be4f68b74223 /plugin/rpcplugin/ipc.go | |
parent | 4f85ed985d478ddf6692fa4f7d8d98d2a412d18c (diff) | |
download | chat-f80d50adbddf55a043dfcab5b47d7c1e22749b7d.tar.gz chat-f80d50adbddf55a043dfcab5b47d7c1e22749b7d.tar.bz2 chat-f80d50adbddf55a043dfcab5b47d7c1e22749b7d.zip |
PLT-7407: Back-end plugin mechanism (#7177)
* begin backend plugin wip
* flesh out rpcplugin. everything done except for minor supervisor stubs
* done with basic plugin infrastructure
* simplify tests
* remove unused test lines
Diffstat (limited to 'plugin/rpcplugin/ipc.go')
-rw-r--r-- | plugin/rpcplugin/ipc.go | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/plugin/rpcplugin/ipc.go b/plugin/rpcplugin/ipc.go new file mode 100644 index 000000000..3e6c89c4f --- /dev/null +++ b/plugin/rpcplugin/ipc.go @@ -0,0 +1,28 @@ +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(parentReader, 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 +} |