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15fb4c990a
This PR switches the Nomad repository from using govendor to Go modules for managing dependencies. Aspects of the Nomad workflow remain pretty much the same. The usual Makefile targets should continue to work as they always did. The API submodule simply defers to the parent Nomad version on the repository, keeping the semantics of API versioning that currently exists.
70 lines
2.4 KiB
Go
70 lines
2.4 KiB
Go
/*
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Package dbus implements bindings to the D-Bus message bus system.
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To use the message bus API, you first need to connect to a bus (usually the
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session or system bus). The acquired connection then can be used to call methods
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on remote objects and emit or receive signals. Using the Export method, you can
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arrange D-Bus methods calls to be directly translated to method calls on a Go
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value.
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Conversion Rules
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For outgoing messages, Go types are automatically converted to the
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corresponding D-Bus types. The following types are directly encoded as their
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respective D-Bus equivalents:
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Go type | D-Bus type
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------------+-----------
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byte | BYTE
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bool | BOOLEAN
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int16 | INT16
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uint16 | UINT16
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int | INT32
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uint | UINT32
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int32 | INT32
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uint32 | UINT32
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int64 | INT64
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uint64 | UINT64
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float64 | DOUBLE
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string | STRING
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ObjectPath | OBJECT_PATH
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Signature | SIGNATURE
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Variant | VARIANT
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interface{} | VARIANT
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UnixFDIndex | UNIX_FD
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Slices and arrays encode as ARRAYs of their element type.
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Maps encode as DICTs, provided that their key type can be used as a key for
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a DICT.
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Structs other than Variant and Signature encode as a STRUCT containing their
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exported fields. Fields whose tags contain `dbus:"-"` and unexported fields will
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be skipped.
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Pointers encode as the value they're pointed to.
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Types convertible to one of the base types above will be mapped as the
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base type.
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Trying to encode any other type or a slice, map or struct containing an
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unsupported type will result in an InvalidTypeError.
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For incoming messages, the inverse of these rules are used, with the exception
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of STRUCTs. Incoming STRUCTS are represented as a slice of empty interfaces
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containing the struct fields in the correct order. The Store function can be
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used to convert such values to Go structs.
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Unix FD passing
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Handling Unix file descriptors deserves special mention. To use them, you should
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first check that they are supported on a connection by calling SupportsUnixFDs.
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If it returns true, all method of Connection will translate messages containing
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UnixFD's to messages that are accompanied by the given file descriptors with the
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UnixFD values being substituted by the correct indices. Similarily, the indices
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of incoming messages are automatically resolved. It shouldn't be necessary to use
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UnixFDIndex.
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*/
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package dbus
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