High level API: first take.
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@ -3,18 +3,22 @@ require "./message"
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require "./event"
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class IPC::Connection
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getter ctx : LibIPC::Ctx
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getter connection : LibIPC::Connection
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getter closed = false
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# connection already established
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def initialize(c : LibIPC::Connection)
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@connection = c
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def initialize(c : LibIPC::Ctx)
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@ctx = c
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end
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# def initialize(c : LibIPC::Connection)
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# @connection = c
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# end
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def initialize(service_name : String)
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@connection = LibIPC::Connection.new
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@ctx = LibIPC::Ctx.new
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r = LibIPC.ipc_connection(LibC.environ, self.pointer, service_name)
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r = LibIPC.ipc_connection(self.pointer, service_name)
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if r.error_code != 0
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m = String.new r.error_message.to_slice
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raise Exception.new "error during connection establishment: #{m}"
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@ -148,15 +152,10 @@ class IPC::Connections
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end
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end
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def wait_event(server : IPC::Connection | Nil, &block) : Tuple(LibIPC::EventType, IPC::Message, IPC::Connection) | Tuple(LibIPC::EventType, Nil, Nil)
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def wait_event(&block) : IPC::Event::Events | Exception
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event = LibIPC::Event.new
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serverp = nil
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unless server.nil?
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serverp = server.pointer
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end
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r = LibIPC.ipc_wait_event self.pointer, serverp, pointerof(event), pointerof(@timer)
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r = LibIPC.ipc_events_loop self.pointer, pointerof(event), pointerof(@timer)
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if r.error_code != 0
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m = String.new r.error_message.to_slice
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yield IPC::Exception.new "error waiting for a new event: #{m}"
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@ -166,52 +165,41 @@ class IPC::Connections
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# if event type is Timer, there is no connection nor message
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case eventtype
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when LibIPC::EventType::Timer
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return eventtype, nil, nil
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when LibIPC::EventType::NotSet
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return Exception.new "'Event type: not set"
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when LibIPC::EventType::Error
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return IPC::Event::Error.new event.index, event.origin
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when LibIPC::EventType::ExtraSocket # Message received from a non IPC socket.
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return IPC::Event::ExtraSocket.new event.origin, event.index
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when LibIPC::EventType::Switch # Message to send to a corresponding fd.
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return IPC::Event::Switch.new event.origin, event.index
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when LibIPC::EventType::Connection # New user.
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return IPC::Event::Connection.new event.origin, event.index
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when LibIPC::EventType::Disconnection # User disconnected.
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return IPC::Event::Disconnection.new event.origin, event.index
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when LibIPC::EventType::Message # New message.
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message = event.message.unsafe_as(Pointer(LibIPC::Message))
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return IPC::Event::MessageReceived.new event.origin, event.index, message
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when LibIPC::EventType::LookUp # Client asking for a service through ipcd.
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# for now, the libipc does not provide lookup events
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# ipcd uses a simple LibIPC::EventType::Message
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return IPC::Event::LookUp.new event.origin, event.index
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when LibIPC::EventType::Timer # Timeout in the poll(2) function.
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return IPC::Event::Timer.new
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when LibIPC::EventType::Tx # Message sent.
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return IPC::Event::Tx.new event.origin, event.index
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end
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connection = IPC::Connection.new event.origin.unsafe_as(Pointer(LibIPC::Connection)).value
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message = event.message.unsafe_as(Pointer(LibIPC::Message))
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return eventtype, IPC::Message.new(message), connection
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yield Exception.new "Cannot understand the event type: #{eventtype}"
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end
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def loop(server : IPC::Connection | IPC::Server | ::Nil, &block : Proc(IPC::Event::Events|Exception, Nil))
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def loop(&block : Proc(IPC::Event::Events|Exception, Nil))
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if @base_timer > 0 && @timer == 0
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@timer = @base_timer
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end
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::loop do
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type, message, connection = wait_event server, &block
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case type
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when LibIPC::EventType::Timer
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# reset timer
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@timer = @base_timer
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yield IPC::Event::Timer.new
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when LibIPC::EventType::Connection
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yield IPC::Event::Connection.new connection.not_nil!
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when LibIPC::EventType::NotSet
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yield IPC::Exception.new "even type not set"
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when LibIPC::EventType::Error
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yield IPC::Exception.new "even type indicates an error"
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when LibIPC::EventType::ExtraSocket
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yield IPC::Event::ExtraSocket.new message.not_nil!, connection.not_nil!
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when LibIPC::EventType::Switch
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yield IPC::Event::Switch.new message.not_nil!, connection.not_nil!
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when LibIPC::EventType::Message
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yield IPC::Event::Message.new message.not_nil!, connection.not_nil!
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# for now, the libipc does not provide lookup events
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# networkd uses a simple LibIPC::EventType::Message
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# when LibIPC::EventType::LookUp
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# yield IPC::Event::LookUp.new message, connection
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yield wait_event &block
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when LibIPC::EventType::Disconnection
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yield IPC::Event::Disconnection.new connection.not_nil!
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@ -221,10 +209,10 @@ class IPC::Connections
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# sanitizer
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def pointer
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pointerof(@connections)
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pointerof(@ctx)
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end
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def pp
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LibIPC.ipc_connections_print @connections
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end
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# def pp
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# LibIPC.ipc_connections_print @connections
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# end
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end
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@ -3,37 +3,55 @@ require "./message"
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require "./connection"
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class IPC::Event
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alias Events = IPC::Event::Timer | IPC::Event::Connection | IPC::Event::Disconnection | IPC::Event::Message | IPC::Event::ExtraSocket | IPC::Event::Switch | IPC::Event::LookUp
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alias Events = IPC::Event::Timer |
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IPC::Event::Error |
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IPC::Event::Connection |
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IPC::Event::Disconnection |
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IPC::Event::MessageReceived |
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IPC::Event::ExtraSocket |
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IPC::Event::Switch |
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IPC::Event::LookUp |
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IPC::Event::MessageSent
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end
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class Timer
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end
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class Connection
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getter connection : IPC::Connection
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def initialize(@connection)
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end
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end
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class Disconnection
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getter connection : IPC::Connection
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def initialize(@connection)
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end
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end
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class Message
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getter message : ::IPC::Message
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getter connection : IPC::Connection
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def initialize(@message, @connection)
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end
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end
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class ExtraSocket < IPC::Event::Message
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end
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class Switch < IPC::Event::Message
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end
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class LookUp < IPC::Event::Message
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class IPC::Event::Timer < IPC::Event
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def initialize
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end
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end
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class IPC::Event::Base < IPC::Event
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getter fd : Int
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getter index : UInt64
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def initialize(@fd, @index)
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end
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end
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class IPC::Event::Connection < IPC::Event::Base
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end
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class IPC::Event::Disconnection < IPC::Event::Base
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end
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class IPC::Event::Error < IPC::Event::Base
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end
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class IPC::Event::MessageReceived < IPC::Event::Base
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getter message : ::IPC::Message
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def initialize(@fd, @index, @message)
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end
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end
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class IPC::Event::ExtraSocket < IPC::Event::Base
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end
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class IPC::Event::Switch < IPC::Event::Base
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end
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class IPC::Event::LookUp < IPC::Event::Base
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end
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class IPC::Event::MessageSent < IPC::Event::Base
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end
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@ -51,15 +51,16 @@ lib LibIPC
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end
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enum EventType
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NotSet
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Error
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ExtraSocket
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Switch
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Connection
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Disconnection
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Message
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LookUp
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Timer
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NotSet #
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Error #
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ExtraSocket # Message received from a non IPC socket.
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Switch # Message to send to a corresponding fd.
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Connection # New user.
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Disconnection # User disconnected.
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Message # New message.
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LookUp # Client asking for a service through ipcd.
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Timer # Timeout in the poll(2) function.
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Tx # Message sent.
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end
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struct Event
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