header file refactoring for IWYU (protocols)

This changes the header files mostly in the protocols to include
directly rather than through the commmon nng_impl.h header.  This
should lead to faster compiles, and by properly making all includes
relative should reduce friction with language servers and other tooling.

6 files changed, 27 insertions, 13 deletions

diff --git a/src/sp/protocol/pubsub0/pub.c b/src/sp/protocol/pubsub0/pub.c
index c753b8af..bc0e5d66 100644
--- a/src/sp/protocol/pubsub0/pub.c
+++ b/src/sp/protocol/pubsub0/pub.c
@@ -8,9 +8,14 @@
 // found online at https://opensource.org/licenses/MIT.
 //
 
-#include <string.h>
-
-#include "../../../core/nng_impl.h"
+#include "../../../core/aio.h"
+#include "../../../core/defs.h"
+#include "../../../core/lmq.h"
+#include "../../../core/message.h"
+#include "../../../core/pipe.h"
+#include "../../../core/pollable.h"
+#include "../../../core/protocol.h"
+#include "../../../core/socket.h"
 
 // Publish protocol.  The PUB protocol simply sends messages out, as
 // a broadcast.  It has nothing more sophisticated because it does not
diff --git a/src/sp/protocol/pubsub0/pub_test.c b/src/sp/protocol/pubsub0/pub_test.c
index 3018ced9..1cef9d1c 100644
--- a/src/sp/protocol/pubsub0/pub_test.c
+++ b/src/sp/protocol/pubsub0/pub_test.c
@@ -7,8 +7,7 @@
 // found online at https://opensource.org/licenses/MIT.
 //
 
-#include "nng/nng.h"
-#include <nuts.h>
+#include "../../../testing/nuts.h"
 
 static void
 test_pub_identity(void)
diff --git a/src/sp/protocol/pubsub0/sub.c b/src/sp/protocol/pubsub0/sub.c
index c426d46c..487d82c8 100644
--- a/src/sp/protocol/pubsub0/sub.c
+++ b/src/sp/protocol/pubsub0/sub.c
@@ -9,10 +9,16 @@
 // found online at https://opensource.org/licenses/MIT.
 //
 
-#include <stdbool.h>
 #include <string.h>
 
-#include "core/nng_impl.h"
+#include "../../../core/aio.h"
+#include "../../../core/defs.h"
+#include "../../../core/lmq.h"
+#include "../../../core/message.h"
+#include "../../../core/pipe.h"
+#include "../../../core/pollable.h"
+#include "../../../core/protocol.h"
+#include "../../../core/socket.h"
 
 // Subscriber protocol.  The SUB protocol receives messages sent to
 // it from publishers, and filters out those it is not interested in,
diff --git a/src/sp/protocol/pubsub0/sub_test.c b/src/sp/protocol/pubsub0/sub_test.c
index 7f4e4480..810003c1 100644
--- a/src/sp/protocol/pubsub0/sub_test.c
+++ b/src/sp/protocol/pubsub0/sub_test.c
@@ -7,8 +7,7 @@
 // found online at https://opensource.org/licenses/MIT.
 //
 
-#include "nng/nng.h"
-#include <nuts.h>
+#include "../../../testing/nuts.h"
 
 static void
 test_sub_identity(void)
diff --git a/src/sp/protocol/pubsub0/xsub.c b/src/sp/protocol/pubsub0/xsub.c
index cb2a5362..7fdcf341 100644
--- a/src/sp/protocol/pubsub0/xsub.c
+++ b/src/sp/protocol/pubsub0/xsub.c
@@ -1,5 +1,5 @@
 //
-// Copyright 2024 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2025 Staysail Systems, Inc. <info@staysail.tech>
 // Copyright 2018 Capitar IT Group BV <info@capitar.com>
 //
 // This software is supplied under the terms of the MIT License, a
@@ -10,7 +10,13 @@
 
 #include <stdlib.h>
 
-#include "core/nng_impl.h"
+#include "../../../core/aio.h"
+#include "../../../core/defs.h"
+#include "../../../core/message.h"
+#include "../../../core/msgqueue.h"
+#include "../../../core/pipe.h"
+#include "../../../core/protocol.h"
+#include "../../../core/socket.h"
 
 // Subscriber protocol.  The SUB protocol receives messages sent to
 // it from publishers, and filters out those it is not interested in,
diff --git a/src/sp/protocol/pubsub0/xsub_test.c b/src/sp/protocol/pubsub0/xsub_test.c
index 859ab532..2f42a363 100644
--- a/src/sp/protocol/pubsub0/xsub_test.c
+++ b/src/sp/protocol/pubsub0/xsub_test.c
@@ -7,8 +7,7 @@
 // found online at https://opensource.org/licenses/MIT.
 //
 
-#include <nng/nng.h>
-#include <nuts.h>
+#include "../../../testing/nuts.h"
 
 static void
 test_xsub_identity(void)