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