Low-level changes for poll(2) version of the LibIPC.
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485d26d677
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6f5aa676b5
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@ -2,16 +2,21 @@
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@[Link("ipc")]
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lib LibIPC
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struct Connection
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version : LibC::UInt
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index : LibC::UInt
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fd : LibC::Int
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type : UInt8
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spath : LibC::Char* # [4096] # [PATH_MAX]
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end
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struct Connections
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cinfos : Connection**
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size : LibC::Int
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struct Pollfd
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fd : LibC::Int
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events : LibC::Short
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revents : LibC::Short
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end
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struct Ctx
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cinfos : Connection*
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pollfd : Pollfd*
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tx : Messages
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size : LibC::UInt64
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end
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struct Switching
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@ -31,11 +36,18 @@ lib LibIPC
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LookUp
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end
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# Messages are stored in lists within the libipc before being sent.
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struct Messages
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messages : Message*
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size : LibC::UInt64
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end
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struct Message
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type : UInt8
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user_type : UInt8
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length : LibC::UInt
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payload : LibC::Char*
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type : UInt8 # Internal message type.
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user_type : UInt8 # User-defined message type.
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fd : LibC::Int # fd of the sender.
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length : LibC::UInt # Payload length.
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payload : LibC::Char* #
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end
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enum EventType
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@ -51,9 +63,10 @@ lib LibIPC
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end
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struct Event
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type : EventType
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origin : Connection*
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message : Message*
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type : EventType #
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index : LibC::UInt # Index of the sender in the ipc_ctx structure.
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origin : LibC::Int # fd of the sender.
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message : Message* # Pointer to the reveiced message.
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end
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struct IPCError
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@ -62,36 +75,33 @@ lib LibIPC
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error_message : LibC::Char[8192]
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end
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fun ipc_server_init(env : LibC::Char**, connection : Connection*, sname : LibC::Char*) : IPCError
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fun ipc_server_close(Connection*) : IPCError
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fun ipc_close(Connection*) : IPCError
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# Connection functions.
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# Context is allocated, ipcd is requested and the connection/initialisation is performed.
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fun ipc_server_init(ctx : Ctx*, sname : LibC::Char*) : IPCError
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fun ipc_connection(Ctx*, LibC::Char*) : IPCError
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# connection to a service
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fun ipc_connection(LibC::Char**, Connection*, LibC::Char*) : IPCError
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# Closing connections.
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fun ipc_close(ctx : Ctx*, index : LibC::UInt64) : IPCError
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fun ipc_close_all(ctx : Ctx*) # Void
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fun ipc_read(Connection*, Message*) : IPCError
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fun ipc_write(Connection*, Message*) : IPCError
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fun ipc_ctx_free(Ctx*) # Void
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fun ipc_wait_event(Connections*, Connection*, Event*, LibC::Double*) : IPCError
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# Loop function.
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fun ipc_events_loop(Ctx*, Event*, LibC::UInt*) : IPCError
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fun ipc_add(Connections*, Connection*) : IPCError
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fun ipc_del(Connections*, Connection*) : IPCError
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fun ipc_add_fd(Connections*, LibC::Int) : IPCError
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fun ipc_del_fd(Connections*, LibC::Int) : IPCError
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# Adding and removing file discriptors to read.
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fun ipc_add(Ctx*, Connection*, Pollfd*) : IPCError
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fun ipc_del(Ctx*, LibC::UInt) : IPCError
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fun ipc_add_fd(Ctx*, LibC::Int) : IPCError
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fun ipc_del_fd(Ctx*, LibC::Int) : IPCError
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fun ipc_connection_gen(Connection*, LibC::UInt, LibC::UInt) : IPCError
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fun ipc_connections_free(Connections*) # Void
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fun ipc_connections_close(Connections*) # Void
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# Sending a message (will wait the fd to become available for IO operations).
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fun ipc_write(Ctx*, Message*) : IPCError
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# This function let the user get the default error message based on the error code.
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# The error message is contained in the IPCError structure, this function should not be used, in most cases.
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fun ipc_errors_get (LibC::Int) : LibC::Char*
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# networkd-related functions
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fun ipc_wait_event_networkd(Connections*, Connection*, Event*, Switchings*, LibC::Double*) : IPCError
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fun ipc_receive_fd (sock : LibC::Int, fd : LibC::Int*) : IPCError
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fun ipc_provide_fd (sock : LibC::Int, fd : LibC::Int ) : IPCError
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@ -100,7 +110,10 @@ lib LibIPC
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fun ipc_switching_get (switch : Switchings*, fd : LibC::Int ) : LibC::Int
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fun ipc_switching_free (switch : Switchings* ) # Void
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# non public functions (for testing purposes)
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# non public functions
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fun ipc_read(Ctx*, index : LibC::UInt, Message*) : IPCError
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# for testing purposes
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fun ipc_switching_print (switch : Switchings*) # Void
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fun service_path (path : LibC::Char*, sname : LibC::Char*, index : Int32, version : Int32) : IPCError
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fun ipc_connections_print (Connections*) # Void
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