I use eventcore latest version write an echo server for test.
some error of build.
my D code:
```D
import eventcore.core;
import std.functional : toDelegate;
import std.socket : InternetAddress;
import std.exception : enforce;
import core.time : Duration;
import std.stdio : writeln;
void main()
{
auto addr = new InternetAddress("127.0.0.1", 1111);
auto listener = eventDriver.sockets.listenStream(addr,
toDelegate(&onClientConnect));
enforce(listener != StreamListenSocketFD.invalid, "Failed to
listen for connections.");
writeln("Listening for requests on port 1111...");
while (eventDriver.core.waiterCount)
eventDriver.core.processEvents(Duration.max);
}
void onClientConnect(StreamListenSocketFD listener,
StreamSocketFD client, scope RefAddress)
{
Connection connection = new Connection(client);
// Send welcome message to client
connection.write("Welcome to use my echo server.");
}
class Connection
{
StreamSocketFD client;
ubyte[1024] buf = void;
this(StreamSocketFD client)
{
this.client = client;
eventDriver.sockets.read(client, buf, IOMode.once, &onRead);
}
void write(ubyte[] data)
{
eventDriver.sockets.write(client, data, IOMode.all,
&onWriteFinished);
}
void onWriteFinished(StreamSocketFD fd, IOStatus status, size_t
len)
{
writeln("Send size: ", len);
}
void onRead(StreamSocketFD, IOStatus status, size_t bytes_read)
{
if (status != IOStatus.ok) {
writeln("Client disconnect");
eventDriver.sockets.shutdown(client, true, true);
eventDriver.sockets.releaseRef(client);
return;
}
this.write(buf[0..bytes_read]);
eventDriver.sockets.read(client, buf, IOMode.once, &onRead);
}
}
```
error code:
```log
dub build
Starting Performing "debug" build using ldc2 for aarch64,
arm_hardfloat.
Up-to-date taggedalgebraic 0.11.22: target for configuration
[library] is up to date.
Up-to-date eventcore 0.9.28: target for configuration
[cfrunloop] is up to date.
Building eventcoredemo ~master: building configuration
[application]
source/main.d(12,50): Error: none of the overloads of
`listenStream` are callable using argument types
`(InternetAddress, void delegate(StreamListenSocketFD a0,
StreamSocketFD a1, scope RefAddress a2) @system)`
../../../.dub/packages/eventcore/0.9.28/eventcore/source/eventcore/driver.d(213,23):
Candidates are: `eventcore.driver.EventDriverSockets.listenStream(scope
Address bind_address, StreamListenOptions options, void
delegate(StreamListenSocketFD, StreamSocketFD, scope RefAddress remote_address)
nothrow @safe on_accept)`
../../../.dub/packages/eventcore/0.9.28/eventcore/source/eventcore/driver.d(215,29):
`eventcore.driver.EventDriverSockets.listenStream(scope
Address bind_address, void delegate(StreamListenSocketFD, StreamSocketFD, scope
RefAddress remote_address) nothrow @safe on_accept)`
../../../.dub/packages/eventcore/0.9.28/eventcore/source/eventcore/drivers/posix/sockets.d(233,38):
`eventcore.drivers.posix.sockets.PosixEventDriverSockets!(CFRunLoopEventLoop).PosixEventDriverSockets.listenStream(scope
Address address, StreamListenOptions options, void
delegate(StreamListenSocketFD, StreamSocketFD, scope RefAddress remote_address)
nothrow @safe on_accept)`
source/main.d(25,18): Error: function
`main.Connection.write(ubyte[] data)` is not callable using
argument types `(string)`
source/main.d(25,18): cannot pass argument `"Welcome to
use my echo server."` of type `string` to parameter `ubyte[] data`
source/main.d(38,27): Error: function
`eventcore.drivers.posix.sockets.PosixEventDriverSockets!(CFRunLoopEventLoop).PosixEventDriverSockets.read(StreamSocketFD socket, ubyte[] buffer, IOMode mode, void delegate(StreamSocketFD, IOStatus, ulong) nothrow @safe on_read_finish)` is not callable using argument types `(StreamSocketFD, ubyte[1024], IOMode, void delegate(StreamSocketFD, IOStatus status, ulong bytes_read))`
source/main.d(38,27): cannot pass argument `&this.onRead`
of type `void delegate(StreamSocketFD, IOStatus status, ulong
bytes_read)` to parameter `void delegate(StreamSocketFD,
IOStatus, ulong) nothrow @safe on_read_finish`
source/main.d(43,28): Error: function
`eventcore.drivers.posix.sockets.PosixEventDriverSockets!(CFRunLoopEventLoop).PosixEventDriverSockets.write(StreamSocketFD socket, const(ubyte)[] buffer, IOMode mode, void delegate(StreamSocketFD, IOStatus, ulong) nothrow @safe on_write_finish)` is not callable using argument types `(StreamSocketFD, ubyte[], IOMode, void delegate(StreamSocketFD fd, IOStatus status, ulong len))`
source/main.d(43,28): cannot pass argument
`&this.onWriteFinished` of type `void delegate(StreamSocketFD fd,
IOStatus status, ulong len)` to parameter `void
delegate(StreamSocketFD, IOStatus, ulong) nothrow @safe
on_write_finish`
source/main.d(62,27): Error: function
`eventcore.drivers.posix.sockets.PosixEventDriverSockets!(CFRunLoopEventLoop).PosixEventDriverSockets.read(StreamSocketFD socket, ubyte[] buffer, IOMode mode, void delegate(StreamSocketFD, IOStatus, ulong) nothrow @safe on_read_finish)` is not callable using argument types `(StreamSocketFD, ubyte[1024], IOMode, void delegate(StreamSocketFD __param_0, IOStatus status, ulong bytes_read))`
source/main.d(62,27): cannot pass argument `&this.onRead`
of type `void delegate(StreamSocketFD __param_0, IOStatus status,
ulong bytes_read)` to parameter `void delegate(StreamSocketFD,
IOStatus, ulong) nothrow @safe on_read_finish`
Error ldc2 failed with exit code 1.
```
How to fix it? than you ;)
