mirror of
https://gitea.invidious.io/iv-org/lsquic.cr
synced 2024-08-15 00:43:31 +00:00
Replace IO::FileDescriptor with IO::ChanneledPipe
This commit is contained in:
parent
0c0d8748a7
commit
016f733109
3 changed files with 481 additions and 416 deletions
90
src/lsquic/channeled_pipe.cr
Normal file
90
src/lsquic/channeled_pipe.cr
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@ -0,0 +1,90 @@
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# Based on https://github.com/anykeyh/channeled_pipe/blob/master/src/channeled_pipe/channeled_pipe.cr
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class IO::ChanneledPipe < IO
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BUFFER_SIZE = 8192
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include IO::Buffered
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@channel : Channel(Bytes?)
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@direction : Symbol
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@buffer : Bytes?
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getter? closed = false
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protected def initialize(@channel, @direction)
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end
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def unbuffered_read(slice : Bytes)
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raise "Cannot read from write side" if @direction == :w
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return 0 if @channel.closed? && !@buffer
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buffer = @buffer
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if buffer
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bytes_read = {slice.size, buffer.size}.min
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slice.copy_from(buffer.to_unsafe, bytes_read)
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if buffer.size == bytes_read
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@buffer = nil
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else
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@buffer = buffer[bytes_read, buffer.size - bytes_read]
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end
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return bytes_read
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else
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buffer = @channel.receive
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if buffer
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bytes_read = {slice.size, buffer.size}.min
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slice.copy_from(buffer.to_unsafe, bytes_read)
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if buffer.size > bytes_read
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@buffer = buffer[bytes_read, buffer.size - bytes_read]
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end
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return bytes_read
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else
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@channel.close
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return 0
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end
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end
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end
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def unbuffered_write(slice : Bytes)
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raise "Write not allowed on read side" if @direction == :r
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raise "Closed stream" if @closed
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@channel.send slice.clone
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slice.size
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end
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def close_channel
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@channel.close
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end
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def unbuffered_flush
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# Nothing
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end
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def unbuffered_rewind
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raise IO::Error.new("Can't rewind")
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end
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def unbuffered_close
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return if @closed
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@closed = true
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@channel.send nil
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end
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def self.new(mem = BUFFER_SIZE)
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mem = BUFFER_SIZE if mem <= 0
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capacity = (mem / BUFFER_SIZE) +
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((mem % BUFFER_SIZE != 0) ? 1 : 0)
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channel = Channel(Bytes?).new(capacity: mem)
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{
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ChanneledPipe.new(channel, :r),
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ChanneledPipe.new(channel, :w),
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}
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end
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end
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@ -1,18 +1,22 @@
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require "http"
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require "socket"
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struct QUIC::StreamCtx
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module QUIC
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class StreamCtx
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property request : HTTP::Request
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property channel : Channel(IO::FileDescriptor)
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property reader : IO::FileDescriptor?
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property writer : IO::FileDescriptor?
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property io : IO::ChanneledPipe
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def initialize(@request : HTTP::Request)
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@channel = Channel(IO::FileDescriptor).new
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def initialize(@request, @io)
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end
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end
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class Client
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STREAM_READF = ->(stream_if_ctx : Void*, buf : UInt8*, buf_len : LibC::SizeT, fin : LibC::Int) do
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stream_ctx = Box(StreamCtx).unbox(stream_if_ctx)
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bytes_read = stream_ctx.io.unbuffered_write Slice.new(buf, buf_len)
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bytes_read.to_u64
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end
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end
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class QUIC::Client
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ON_NEW_STREAM = ->(stream_if_ctx : Void*, s : LibLsquic::StreamT) do
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stream_ctx = LibLsquic.stream_conn(s)
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.try { |c| LibLsquic.conn_get_ctx(c) }
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@ -22,12 +26,6 @@ class QUIC::Client
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return Box.box(stream_ctx)
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end
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reader, writer = IO.pipe
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stream_ctx.reader = reader
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stream_ctx.writer = writer
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stream_ctx.channel.send reader
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LibLsquic.stream_wantwrite(s, 1)
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Box.box(stream_ctx)
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end
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@ -77,14 +75,11 @@ class QUIC::Client
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end
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ON_READ = ->(s : LibLsquic::StreamT, stream_if_ctx : Void*) do
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begin
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stream_ctx = Box(StreamCtx).unbox(stream_if_ctx)
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buffer = Bytes.new(0x600)
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bytes_read = LibLsquic.stream_read(s, buffer, buffer.size)
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bytes_read = LibLsquic.stream_readf(s, STREAM_READF, Box.box(stream_ctx))
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if bytes_read > 0
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stream_ctx.writer.try &.write buffer[0, bytes_read]
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# Nothing
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elsif bytes_read == 0
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LibLsquic.stream_shutdown(s, 0)
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LibLsquic.stream_wantread(s, 0)
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@ -93,22 +88,14 @@ class QUIC::Client
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else
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"Could not read response"
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end
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Box.box(stream_ctx)
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rescue ex
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LibLsquic.stream_shutdown(s, 0)
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LibLsquic.stream_wantread(s, 0)
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Box.box(stream_ctx)
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end
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end
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ON_CLOSE = ->(s : LibLsquic::StreamT, stream_if_ctx : Void*) do
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begin
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stream_ctx = Box(StreamCtx).unbox(stream_if_ctx)
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stream_ctx.writer.try &.close
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stream_ctx.io.close
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Box.box(stream_ctx)
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rescue ex
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Box.box(stream_ctx)
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end
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end
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EA_PACKETS_OUT = ->(peer_ctx : Void*, specs : LibLsquic::OutSpec*, count : LibC::UInt) do
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@ -210,10 +197,8 @@ class QUIC::Client
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LibLsquic.conn_make_stream(conn)
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LibLsquic.engine_process_conns(engine)
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end
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LibLsquic.conn_close(conn)
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LibLsquic.engine_process_conns(engine)
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LibLsquic.engine_destroy(engine)
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engine_closed = true
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LibLsquic.engine_destroy(engine)
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end
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buffer = Bytes.new(0x600)
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@ -223,6 +208,7 @@ class QUIC::Client
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LibLsquic.engine_packet_in(engine, buffer[0, bytes_read], bytes_read, socket.local_address, socket.remote_address, Box.box(socket), 0) if bytes_read != 0
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LibLsquic.engine_process_conns(engine)
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end
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socket.close
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end
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private def check_host_only(string : String)
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@ -374,12 +360,6 @@ class QUIC::Client
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response = exec_internal_single(request)
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return handle_response(response) if response
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# Server probably closed the connection, so retry one
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close
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request.body.try &.rewind
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response = exec_internal_single(request)
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return handle_response(response) if response
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raise "Unexpected end of http response"
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end
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@ -426,10 +406,9 @@ class QUIC::Client
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set_defaults request
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run_before_request_callbacks(request)
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stream_ctx = StreamCtx.new(request)
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reader, writer = IO::ChanneledPipe.new
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stream_ctx = StreamCtx.new(request, writer)
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@stream_channel.send stream_ctx
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reader = stream_ctx.channel.receive
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reader
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end
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@ -551,4 +530,5 @@ class QUIC::Client
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yield client, path
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end
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end
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end
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end
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@ -67,10 +67,8 @@ lib LibLsquic
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id : Uint64T
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end
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alias X__Uint8T = UInt8
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alias Uint8T = X__Uint8T
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alias X__Uint64T = LibC::ULong
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alias Uint64T = X__Uint64T
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alias Uint8T = UInt8
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alias Uint64T = LibC::ULong
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alias Engine = Void
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alias Conn = Void
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alias ConnCtx = Void
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es_cc_algo : LibC::UInt
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end
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alias X__Uint32T = LibC::UInt
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alias Uint32T = X__Uint32T
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alias Uint32T = LibC::UInt
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fun engine_init_settings = lsquic_engine_init_settings(x0 : EngineSettings*, engine_flags : LibC::UInt)
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fun engine_check_settings = lsquic_engine_check_settings(settings : EngineSettings*, engine_flags : LibC::UInt, err_buf : LibC::Char*, err_buf_sz : LibC::SizeT) : LibC::Int
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@ -183,8 +180,7 @@ lib LibLsquic
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shi_lookup : (Void*, Void*, LibC::UInt, Void**, LibC::UInt* -> LibC::Int)
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end
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alias X__TimeT = LibC::Long
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alias TimeT = X__TimeT
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alias TimeT = LibC::Long
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struct PackoutMemIf
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pmi_allocate : (Void*, Void*, LibC::UShort, LibC::Char -> Void*)
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fun conn_close = lsquic_conn_close(x0 : ConnT)
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fun stream_wantread = lsquic_stream_wantread(s : StreamT, is_want : LibC::Int) : LibC::Int
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fun stream_read = lsquic_stream_read(s : StreamT, buf : Void*, len : LibC::SizeT) : SsizeT
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alias X__SsizeT = LibC::Long
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alias SsizeT = X__SsizeT
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alias SsizeT = LibC::Long
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fun stream_readv = lsquic_stream_readv(s : StreamT, x1 : Iovec*, iovcnt : LibC::Int) : SsizeT
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fun stream_readf = lsquic_stream_readf(s : StreamT, readf : (Void*, UInt8*, LibC::SizeT, LibC::Int -> LibC::SizeT), ctx : Void*) : SsizeT
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fun stream_wantwrite = lsquic_stream_wantwrite(s : StreamT, is_want : LibC::Int) : LibC::Int
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