From d33b43276c6319055bc212d68fab9ca5f47cfa87 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sat, 14 Aug 2021 18:57:35 +0200
Subject: [PATCH] Kernel+LibC: Share definitions for poll.h

---
 Kernel/API/POSIX/poll.h        | 33 +++++++++++++++++++++++++++++++++
 Kernel/UnixTypes.h             | 15 +--------------
 Userland/Libraries/LibC/poll.h | 20 ++------------------
 3 files changed, 36 insertions(+), 32 deletions(-)
 create mode 100644 Kernel/API/POSIX/poll.h

diff --git a/Kernel/API/POSIX/poll.h b/Kernel/API/POSIX/poll.h
new file mode 100644
index 0000000000..2bdccf6d69
--- /dev/null
+++ b/Kernel/API/POSIX/poll.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <Kernel/API/POSIX/sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define POLLIN (1u << 0)
+#define POLLPRI (1u << 1)
+#define POLLOUT (1u << 2)
+#define POLLERR (1u << 3)
+#define POLLHUP (1u << 4)
+#define POLLNVAL (1u << 5)
+#define POLLRDHUP (1u << 13)
+
+struct pollfd {
+    int fd;
+    short events;
+    short revents;
+};
+
+typedef unsigned nfds_t;
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/Kernel/UnixTypes.h b/Kernel/UnixTypes.h
index 354e61cef6..d579ee695a 100644
--- a/Kernel/UnixTypes.h
+++ b/Kernel/UnixTypes.h
@@ -15,6 +15,7 @@
 #include <Kernel/API/POSIX/net/if_arp.h>
 #include <Kernel/API/POSIX/net/route.h>
 #include <Kernel/API/POSIX/netinet/in.h>
+#include <Kernel/API/POSIX/poll.h>
 #include <Kernel/API/POSIX/serenity.h>
 #include <Kernel/API/POSIX/signal.h>
 #include <Kernel/API/POSIX/sys/mman.h>
@@ -91,20 +92,6 @@ typedef i64 time_t;
 typedef u32 blksize_t;
 typedef u32 blkcnt_t;
 
-#define POLLIN (1u << 0)
-#define POLLPRI (1u << 1)
-#define POLLOUT (1u << 2)
-#define POLLERR (1u << 3)
-#define POLLHUP (1u << 4)
-#define POLLNVAL (1u << 5)
-#define POLLRDHUP (1u << 13)
-
-struct pollfd {
-    int fd;
-    short events;
-    short revents;
-};
-
 typedef u32 __u32;
 typedef u16 __u16;
 typedef u8 __u8;
diff --git a/Userland/Libraries/LibC/poll.h b/Userland/Libraries/LibC/poll.h
index 384e5d1379..cdc838242e 100644
--- a/Userland/Libraries/LibC/poll.h
+++ b/Userland/Libraries/LibC/poll.h
@@ -1,32 +1,16 @@
 /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
 #pragma once
 
+#include <Kernel/API/POSIX/poll.h>
 #include <signal.h>
-#include <sys/cdefs.h>
 
 __BEGIN_DECLS
 
-#define POLLIN (1u << 0)
-#define POLLPRI (1u << 1)
-#define POLLOUT (1u << 2)
-#define POLLERR (1u << 3)
-#define POLLHUP (1u << 4)
-#define POLLNVAL (1u << 5)
-#define POLLRDHUP (1u << 13)
-
-struct pollfd {
-    int fd;
-    short events;
-    short revents;
-};
-
-typedef unsigned nfds_t;
-
 int poll(struct pollfd* fds, nfds_t nfds, int timeout);
 int ppoll(struct pollfd* fds, nfds_t nfds, const struct timespec* timeout, const sigset_t* sigmask);