Crystal bindings update.
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119
core/ipc.cr
119
core/ipc.cr
@ -14,9 +14,15 @@ lib LibIPC
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fd : LibC::Int
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end
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enum MessageType
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ServerClose
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Error
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Data
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end
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struct Message
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type : LibC::Char
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length : LibC::UShort
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type : UInt8
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length : LibC::UInt
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payload : LibC::Char*
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end
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@ -25,6 +31,21 @@ lib LibIPC
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size : LibC::Int
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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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Stdin
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Connection
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Disconnection
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Message
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end
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struct Event
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type : EventType
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origin : Client*
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m : Message*
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end
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# FIXME: IPC.initialize:
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# - throw exceptions on error.
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# - Make most arguments optional.
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@ -39,6 +60,8 @@ lib LibIPC
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fun ipc_server_select(Clients*, Service*, Clients*, LibC::Int*) : LibC::Int
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fun ipc_service_poll_event(Clients*, Service*, Event*) : LibC::Int
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fun ipc_application_connection(LibC::Char**, Service*, LibC::Char*) : LibC::Int
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fun ipc_application_close(Service*) : LibC::Int
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fun ipc_application_read(Service*, Message*) : LibC::Int
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@ -99,53 +122,34 @@ class IPC::Service
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end
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def loop(&block)
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active_clients = LibIPC::Clients.new
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anyone_joined = 0_i32
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message = LibIPC::Message.new
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::loop do
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if LibIPC.ipc_server_select(pointerof(@clients), pointerof(@service), pointerof(active_clients), pointerof(anyone_joined)) < 0
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raise Exception.new "ipc_server_select < 0"
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event = LibIPC::Event.new
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r = LibIPC.ipc_service_poll_event pointerof(@clients), pointerof(@service), pointerof(event)
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if r < 0
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raise Exception.new "ipc_service_poll_event < 0"
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end
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if anyone_joined > 0
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client = LibIPC::Client.new
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if LibIPC.ipc_server_accept(pointerof(@service), pointerof(client)) < 0
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raise Exception.new "ipc_server_accept < 0"
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end
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client = IPC::RemoteClient.new event.origin.unsafe_as(Pointer(LibIPC::Client)).value
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if LibIPC.ipc_client_add(pointerof(@clients), pointerof(client)) < 0
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raise Exception.new "ipc_client_add < 0"
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end
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yield ::IPC::Event::Connection.new ::IPC::Server::Client.new client
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pp! event
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message = event.m.unsafe_as(Pointer(LibIPC::Message))
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unless message.null?
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pp! message.value
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end
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i = 0
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while i < active_clients.size
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client_pointer = active_clients.clients[i]
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case event.type
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when LibIPC::EventType::Connection
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yield IPC::Event::Connection.new client
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when LibIPC::EventType::Message
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message = event.m.unsafe_as(Pointer(LibIPC::Message)).value
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return_value = LibIPC.ipc_server_read(client_pointer, pointerof(message))
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if return_value < 0
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raise Exception.new "ipc_server_read < 0"
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elsif return_value == 1
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LibIPC.ipc_client_del pointerof(@clients), client_pointer
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# FIXME: Should probably not be a new Server::Client. Having unique
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# variables helps in using Server::Clients as keys.
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yield Event::Disconnection.new Server::Client.new client_pointer.value
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else
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yield Event::Message.new(IPC::Message.new(message.type, message.length, message.payload), Server::Client.new client_pointer.value)
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end
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i += 1
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yield IPC::Event::Message.new IPC::Message.new(message.type, message.length, message.payload), client
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when LibIPC::EventType::Disconnection
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yield IPC::Event::Disconnection.new client
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end
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LibIPC.ipc_clients_free(pointerof(active_clients))
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end
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close
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end
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end
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@ -162,32 +166,17 @@ class IPC::Message
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getter payload : String
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def initialize(type, length, payload)
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@type = type
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@type = type.to_u8
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@payload = String.new payload, length
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end
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end
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class IPC::Server::Client
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@closed = false
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getter client = LibIPC::Client.new
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class IPC::RemoteClient
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getter client : LibIPC::Client
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def initialize(service : LibIPC::Service*)
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if LibIPC.ipc_server_accept(service, pointerof(@client)) < 0
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raise Exception.new "ipc_server_accept < 0"
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end
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end
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def initialize(@client)
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end
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def read
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message = LibIPC::Message.new
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if LibIPC.ipc_server_read(pointerof(@client), pointerof(message)) < 0
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raise Exception.new "ipc_server_read < 0"
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end
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Message.new message.type, message.length, message.payload
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end
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def send(type : UInt8, payload : String)
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message = LibIPC::Message.new type: type, length: payload.size, payload: payload.to_unsafe
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@ -195,32 +184,24 @@ class IPC::Server::Client
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raise Exception.new "ipc_server_write < 0"
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end
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end
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def close
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return if @closed
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LibIPC.ipc_server_close_client pointerof(@client)
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end
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def finalize
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close
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end
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end
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class IPC::Event
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class Connection
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getter client : ::IPC::Server::Client
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getter client : IPC::RemoteClient
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def initialize(@client)
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end
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end
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class Disconnection
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getter client : ::IPC::Server::Client
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getter client : IPC::RemoteClient
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def initialize(@client)
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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 client : ::IPC::Server::Client
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getter client : IPC::RemoteClient
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def initialize(@message, @client)
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end
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end
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