90 lines
2.7 KiB
Go
90 lines
2.7 KiB
Go
package dbus
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import (
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"strconv"
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"strings"
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)
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// MatchOption specifies option for dbus routing match rule. Options can be constructed with WithMatch* helpers.
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// For full list of available options consult
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// https://dbus.freedesktop.org/doc/dbus-specification.html#message-bus-routing-match-rules
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type MatchOption struct {
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key string
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value string
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}
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func formatMatchOptions(options []MatchOption) string {
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items := make([]string, 0, len(options))
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for _, option := range options {
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items = append(items, option.key+"='"+option.value+"'")
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}
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return strings.Join(items, ",")
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}
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// WithMatchOption creates match option with given key and value
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func WithMatchOption(key, value string) MatchOption {
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return MatchOption{key, value}
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}
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// doesn't make sense to export this option because clients can only
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// subscribe to messages with signal type.
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func withMatchType(typ string) MatchOption {
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return WithMatchOption("type", typ)
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}
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// WithMatchSender sets sender match option.
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func WithMatchSender(sender string) MatchOption {
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return WithMatchOption("sender", sender)
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}
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// WithMatchSender sets interface match option.
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func WithMatchInterface(iface string) MatchOption {
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return WithMatchOption("interface", iface)
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}
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// WithMatchMember sets member match option.
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func WithMatchMember(member string) MatchOption {
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return WithMatchOption("member", member)
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}
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// WithMatchObjectPath creates match option that filters events based on given path
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func WithMatchObjectPath(path ObjectPath) MatchOption {
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return WithMatchOption("path", string(path))
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}
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// WithMatchPathNamespace sets path_namespace match option.
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func WithMatchPathNamespace(namespace ObjectPath) MatchOption {
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return WithMatchOption("path_namespace", string(namespace))
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}
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// WithMatchDestination sets destination match option.
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func WithMatchDestination(destination string) MatchOption {
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return WithMatchOption("destination", destination)
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}
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// WithMatchArg sets argN match option, range of N is 0 to 63.
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func WithMatchArg(argIdx int, value string) MatchOption {
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if argIdx < 0 || argIdx > 63 {
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panic("range of argument index is 0 to 63")
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}
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return WithMatchOption("arg"+strconv.Itoa(argIdx), value)
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}
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// WithMatchArgPath sets argN path match option, range of N is 0 to 63.
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func WithMatchArgPath(argIdx int, path string) MatchOption {
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if argIdx < 0 || argIdx > 63 {
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panic("range of argument index is 0 to 63")
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}
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return WithMatchOption("arg"+strconv.Itoa(argIdx)+"path", path)
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}
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// WithMatchArg0Namespace sets arg0namespace match option.
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func WithMatchArg0Namespace(arg0Namespace string) MatchOption {
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return WithMatchOption("arg0namespace", arg0Namespace)
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}
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// WithMatchEavesdrop sets eavesdrop match option.
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func WithMatchEavesdrop(eavesdrop bool) MatchOption {
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return WithMatchOption("eavesdrop", strconv.FormatBool(eavesdrop))
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}
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