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reactive_socket.go
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reactive_socket.go
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package asio
import (
"context"
"fmt"
"io"
"net"
)
type ReactiveSocket struct {
ctx *IoContext
}
func NewReactiveSocket(ctx *IoContext) *ReactiveSocket {
d := new(ReactiveSocket)
d.ctx = ctx
return d
}
func (r *ReactiveSocket) AsyncAccept(listen net.Listener, op func(conn net.Conn, err error)) {
// call block function net.Listener.Accept in a separate goroutine, new goroutine will exit after accept a connection
// callback operation will be executed in io_service in the correct time
// use ec.Error to get error from accepting event when ec.Valid is true
go r.accept(listen, op)
}
func (r *ReactiveSocket) accept(listen net.Listener, op func(conn net.Conn, err error)) {
connect, err := listen.Accept()
r.ctx.GetService().post(socketAcceptOp{op, connect, err})
}
func (r *ReactiveSocket) AsyncConnect(network, address string, op func(conn net.Conn, err error)) {
go r.connect(network, address, op)
}
func (r *ReactiveSocket) connect(network, address string, op func(net.Conn, error)) {
conn, err := net.Dial(network, address)
r.ctx.GetService().post(socketConnectOp{op, conn, err})
}
func (r *ReactiveSocket) AsyncResolve(ctx context.Context, host string, port string, op func(address string, err error)) {
go r.resolve(ctx, host, port, op)
}
func (r *ReactiveSocket) resolve(ctx context.Context, host string, port string, op func(string, error)) {
ips, err := net.DefaultResolver.LookupIPAddr(ctx, host)
if err != nil {
r.ctx.GetService().post(socketResolveOp{op, "", err})
return
}
for _, ip := range ips {
r.ctx.GetService().post(socketResolveOp{op, fmt.Sprintf("%s:%s", ip.IP.String(), port), err})
}
}
func (r *ReactiveSocket) AsyncRead(reader io.Reader, b []byte, op func(n int, err error)) {
// call block function io.Reader.Read in a separate goroutine, new goroutine will exit after reading event
// callback operation will be executed in io_service in the correct time
// use ec.Error to get error from reading event when ec.Valid is true
go r.read(reader, b, op)
}
func (r *ReactiveSocket) read(reader io.Reader, b []byte, op func(n int, err error)) {
n, err := reader.Read(b)
r.ctx.GetService().post(socketReadOp{op, n, err})
}
func (r *ReactiveSocket) AsyncReadFull(reader io.Reader, b []byte, op func(n int, err error)) {
// call block function io.ReadFull(io.Reader, []byte) in a separate goroutine, new goroutine will exit after reading event
// callback operation will be executed in io_service in the correct time
// use ec.Error to get error from reading event when ec.Valid is true
go r.readFull(reader, b, op)
}
func (r *ReactiveSocket) readFull(reader io.Reader, b []byte, op func(n int, err error)) {
n, err := io.ReadFull(reader, b)
r.ctx.GetService().post(socketReadFullOp{op, n, err})
}
func (r *ReactiveSocket) AsyncWrite(writer io.Writer, b []byte, op func(n int, ec error)) {
// call block function io.Writer.Write in a separate goroutine, new goroutine will exit after writing event
// callback operation will be executed in io_service in the correct time
// use ec.Error to get error from writing event when ec.Valid is true
go r.write(writer, b, op)
}
func (r *ReactiveSocket) write(writer io.Writer, b []byte, op func(n int, ec error)) {
n, err := writer.Write(b)
r.ctx.GetService().post(socketWriteOp{op, n, err})
}