Crystal bindings: most functions done. Can be used for real.
parent
368513bca5
commit
21ecf157d1
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@ -18,66 +18,149 @@ lib LibIPC
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fun service_init = ipc_service_init (Void*, LibC::Int*, LibC::Char*, LibC::UInt16T) : LibC::Int
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fun connect_service = ipc_connect_service(Void*, LibC::Int*, LibC::Char*, LibC::UInt16T) : LibC::Int
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# Context EventType index fd buffer buflen
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# Context EventType index fd buffer buflen
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fun wait = ipc_wait_event(Void*, UInt8*, LibC::UInt64T*, LibC::Int*, UInt8*, LibC::UInt64T*) : LibC::Int
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# Sending a message NOW.
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# WARNING: unbuffered send do not wait the fd to become available.
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# WARNING: doesn't wait the fd to become available.
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fun write = ipc_write(Void*, LibC::Int, UInt8*, LibC::UInt64T) : LibC::Int
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# Sending a message (will wait the fd to become available for IO operations).
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fun schedule = ipc_schedule(Void*, LibC::Int, UInt8*, LibC::UInt64T) : LibC::Int
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fun read = ipc_read_fd (Void*, LibC::Int, UInt8*, LibC::UInt64T*);
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fun timer = ipc_context_timer (Void*, LibC::Int)
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# Closing connections.
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fun ipc_close(Void*, index : LibC::UInt64T) : LibC::Int
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fun ipc_close(Void*, LibC::UInt64T) : LibC::Int
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fun ipc_close_all(Void*) : LibC::Int
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end
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def test_without_wait()
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ctx : Pointer(Void) = Pointer(Void).null
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LibIPC.init (pointerof(ctx))
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fd : Int32 = 0
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LibIPC.connect_service(ctx, pointerof(fd), "pong", 4)
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pp! fd
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LibIPC.write(ctx, fd, "Hello", 5)
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ctx = Pointer(Void).null
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LibIPC.init (pointerof(ctx))
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fd : Int32 = 0
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LibIPC.connect_service(ctx, pointerof(fd), "pong", 4)
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pp! fd
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LibIPC.write(ctx, fd, "Hello", 5)
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buflen : LibC::UInt64T = 10
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buffer = uninitialized UInt8[10]
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LibIPC.read(ctx, fd, buffer.to_unsafe, pointerof(buflen))
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received = String.new(buffer.to_unsafe, buflen)
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pp! received
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buflen : LibC::UInt64T = 10
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buffer = uninitialized UInt8[10]
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LibIPC.read(ctx, fd, buffer.to_unsafe, pointerof(buflen))
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received = String.new(buffer.to_unsafe, buflen)
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pp! received
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LibIPC.deinit (ctx)
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LibIPC.deinit (ctx)
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end
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class IPC
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#class Message
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# @fd : Int32
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# @payload : Bytes
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# def initialize(@fd, string : String)
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# @payload = Bytes.new string
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# end
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#end
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class Event
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property type : LibIPC::EventType
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property index : LibC::UInt64T
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property fd : Int32
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property buffer : Array(UInt8)
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def initialize(t : UInt8, @index, @fd, buffer, buflen)
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@type = LibIPC::EventType.new t
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@buffer = buffer.to_a[0..buflen - 1]
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end
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end
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def initialize()
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@context = Pointer(Void).null
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LibIPC.init(pointerof(@context))
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at_exit { deinit }
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end
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def deinit
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LibIPC.deinit(@context)
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end
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def connect(name : String) : Int
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fd = uninitialized Int32
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if LibIPC.connect_service(@context, pointerof(fd), name, name.size) != 0
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raise "oh noes"
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end
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fd
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end
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def write(fd : Int, string : String)
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self.write(fd, string.to_unsafe, string.size.to_u64)
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end
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def write(fd : Int, buffer : UInt8*, buflen : UInt64)
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if LibIPC.write(@context, fd, buffer, buflen) != 0
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raise "oh noes"
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end
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end
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def wait() : IPC::Event
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eventtype : UInt8 = 0
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index : LibC::UInt64T = 0
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fd : Int32 = 0
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buflen : LibC::UInt64T = 10000
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buffer = uninitialized UInt8[10000]
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ret = LibIPC.wait(@context,
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pointerof(eventtype),
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pointerof(index),
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pointerof(fd),
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buffer.to_unsafe,
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pointerof(buflen))
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if ret != 0
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raise "Oh noes, 'wait' iz brkn"
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end
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Event.new(eventtype, index, fd, buffer, buflen)
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end
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end
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def test_with_wait()
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ctx : Pointer(Void) = Pointer(Void).null
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LibIPC.init (pointerof(ctx))
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fd : Int32 = 0
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LibIPC.connect_service(ctx, pointerof(fd), "pong", 4)
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pp! fd
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LibIPC.write(ctx, fd, "Hello", 5)
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ctx = Pointer(Void).null
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LibIPC.init (pointerof(ctx))
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fd : Int32 = 0
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LibIPC.connect_service(ctx, pointerof(fd), "pong", 4)
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pp! fd
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LibIPC.write(ctx, fd, "Hello", 5)
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buflen : LibC::UInt64T = 10
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buffer = uninitialized UInt8[10]
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eventtype : UInt8 = 0
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index : LibC::UInt64T = 0
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buflen : LibC::UInt64T = 10
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buffer = uninitialized UInt8[10]
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eventtype : UInt8 = 0
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index : LibC::UInt64T = 0
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LibIPC.wait(ctx, pointerof(eventtype), pointerof(index), pointerof(fd), buffer.to_unsafe, pointerof(buflen))
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LibIPC.timer(ctx, 2000) # Wait at most 2 seconds.
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LibIPC.wait(ctx, pointerof(eventtype), pointerof(index), pointerof(fd), buffer.to_unsafe, pointerof(buflen))
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pp! "After waiting: ", LibIPC::EventType.new(eventtype), fd, index, buflen
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received = String.new(buffer.to_unsafe, buflen)
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pp! received
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pp! LibIPC::EventType.new(eventtype), fd, index, buflen
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received = String.new(buffer.to_unsafe, buflen)
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pp! received
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LibIPC.deinit (ctx)
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LibIPC.deinit (ctx)
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end
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def test_high_level
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ipc = IPC.new
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fd = ipc.connect("pong")
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ipc.write(fd, "hello this is some value")
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event = ipc.wait()
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pp! event.type
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pp! event.fd
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pp! String.new(event.buffer.to_unsafe, event.buffer.size)
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end
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# TODO: Write documentation for `Some::Crystal::App`
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module Some::Crystal::App
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VERSION = "0.1.0"
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VERSION = "0.1.0"
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test_without_wait
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test_with_wait
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test_without_wait
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test_with_wait
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test_high_level
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end
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