From 127516b4bf63dc922df222825a9a6a1d7eacc214 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Tue, 19 May 2026 10:12:32 +0300
Subject: u6: add socket/socketpair kind scaffolding and wiring

---
 internal/eventloop_socket_test.go | 79 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 internal/eventloop_socket_test.go

(limited to 'internal/eventloop_socket_test.go')

diff --git a/internal/eventloop_socket_test.go b/internal/eventloop_socket_test.go
new file mode 100644
index 0000000..6b76813
--- /dev/null
+++ b/internal/eventloop_socket_test.go
@@ -0,0 +1,79 @@
+package internal
+
+import (
+	"testing"
+
+	"ior/internal/event"
+	"ior/internal/types"
+)
+
+func TestHandleSocketExitTracksReturnedFd(t *testing.T) {
+	el := mustNewEventLoop(t, eventLoopConfig{})
+
+	enter := &types.SocketEvent{
+		EventType: types.ENTER_SOCKET_EVENT,
+		TraceId:   types.SYS_ENTER_SOCKET,
+		Time:      100,
+		Pid:       42,
+		Tid:       43,
+		Family:    1,
+		Type:      2,
+		Protocol:  0,
+	}
+	exit := &types.RetEvent{
+		EventType: types.EXIT_SOCKET_EVENT,
+		TraceId:   types.SYS_EXIT_SOCKET,
+		Time:      200,
+		Ret:       55,
+		Pid:       42,
+		Tid:       43,
+	}
+	ep := &event.Pair{EnterEv: enter, ExitEv: exit}
+
+	if ok := el.handleSocketExit(ep, enter); !ok {
+		t.Fatal("handleSocketExit returned false")
+	}
+	verifyFileDescriptor(t, el, 55, "socket:1:2:0")
+}
+
+func TestHandleSocketpairExitTracksReturnedFds(t *testing.T) {
+	el := mustNewEventLoop(t, eventLoopConfig{})
+
+	enter := &types.SocketpairEvent{
+		EventType: types.ENTER_SOCKETPAIR_EVENT,
+		TraceId:   types.SYS_ENTER_SOCKETPAIR,
+		Time:      100,
+		Pid:       77,
+		Tid:       78,
+		Family:    1,
+		Type:      1,
+		Protocol:  0,
+		Sv0:       61,
+		Sv1:       62,
+	}
+	exit := &types.RetEvent{
+		EventType: types.EXIT_SOCKETPAIR_EVENT,
+		TraceId:   types.SYS_EXIT_SOCKETPAIR,
+		Time:      200,
+		Ret:       0,
+		Pid:       77,
+		Tid:       78,
+	}
+	ep := &event.Pair{EnterEv: enter, ExitEv: exit}
+
+	if ok := el.handleSocketpairExit(ep, enter); !ok {
+		t.Fatal("handleSocketpairExit returned false")
+	}
+	verifyFileDescriptor(t, el, 61, "socket:1:1:0")
+	verifyFileDescriptor(t, el, 62, "socket:1:1:0")
+}
+
+func TestInitRawHandlersRegistersSocketEvents(t *testing.T) {
+	el := mustNewEventLoop(t, eventLoopConfig{})
+	if _, ok := el.rawHandlers[types.ENTER_SOCKET_EVENT]; !ok {
+		t.Fatal("ENTER_SOCKET_EVENT handler is not registered")
+	}
+	if _, ok := el.rawHandlers[types.ENTER_SOCKETPAIR_EVENT]; !ok {
+		t.Fatal("ENTER_SOCKETPAIR_EVENT handler is not registered")
+	}
+}
-- 
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