From 2376a31c20a74947dba0ede4680579421d2f30e6 Mon Sep 17 00:00:00 2001
From: Torrekie <me@torrekie.dev>
Date: Sat, 20 Apr 2024 18:28:46 +0800
Subject: [PATCH] Re-enable os-wrappers-test.c on Darwin, fix errors

Signed-off-by: Torrekie Gen <me@torrekie.dev>
---
 egl/wayland-egl-symbols-check |  2 +-
 src/event-loop.c              |  8 ++++++++
 tests/os-wrappers-test.c      | 23 +++++++++++++++--------
 tests/queue-test.c            | 19 +++++++++++++++++++
 4 files changed, 43 insertions(+), 9 deletions(-)

diff --git a/egl/wayland-egl-symbols-check b/egl/wayland-egl-symbols-check
index 39f80cd1..82b9499d 100755
--- a/egl/wayland-egl-symbols-check
+++ b/egl/wayland-egl-symbols-check
@@ -20,7 +20,7 @@ if [ "$(uname)" == "Darwin" ]; then
 else
   NM_DYNSYM_TABLE="-D"
   SYMBOL_PREFIX=""
-endif
+fi
 
 AVAIL_FUNCS="$($NM ${NM_DYNSYM_TABLE} --format=bsd --defined-only $LIB | awk '{print $3}')"
 
diff --git a/src/event-loop.c b/src/event-loop.c
index 45222f71..1986939a 100644
--- a/src/event-loop.c
+++ b/src/event-loop.c
@@ -45,6 +45,14 @@
 #include "wayland-server-private.h"
 #include "wayland-os.h"
 
+#ifdef __APPLE__
+/* epoll-shim should provide this by design */
+struct itimerspec {
+	struct timespec it_interval;
+	struct timespec it_value;
+};
+#endif
+
 /** \cond INTERNAL */
 
 #define TIMER_REMOVED -2
diff --git a/tests/os-wrappers-test.c b/tests/os-wrappers-test.c
index 55067485..d9cd7c40 100644
--- a/tests/os-wrappers-test.c
+++ b/tests/os-wrappers-test.c
@@ -23,8 +23,6 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
- /* This test should be skipped on Darwin (as of 2024) */
-#ifndef __APPLE__
 #include "../config.h"
 
 #define _GNU_SOURCE
@@ -62,12 +60,12 @@ static int
 socket_wrapper(int domain, int type, int protocol)
 {
 	wrapped_calls_socket++;
-
+#ifdef SOCK_CLOEXEC
 	if (fall_back && (type & SOCK_CLOEXEC)) {
 		errno = EINVAL;
 		return -1;
 	}
-
+#endif
 	return socket(domain, type, protocol);
 }
 
@@ -111,11 +109,12 @@ static ssize_t
 recvmsg_wrapper(int sockfd, struct msghdr *msg, int flags)
 {
 	wrapped_calls_recvmsg++;
-
+#ifdef MSG_CMSG_CLOEXEC
 	if (fall_back && (flags & MSG_CMSG_CLOEXEC)) {
 		errno = EINVAL;
 		return -1;
 	}
+#endif
 
 	return recvmsg(sockfd, msg, flags);
 }
@@ -160,8 +159,11 @@ do_os_wrappers_socket_cloexec(int n)
 	 * Must have 2 calls if falling back, but must also allow
 	 * falling back without a forced fallback.
 	 */
+#ifdef SOCK_CLOEXEC
 	assert(wrapped_calls_socket > n);
-
+#else
+	assert(wrapped_calls_socket == 1);
+#endif
 	exec_fd_leak_check(nr_fds);
 }
 
@@ -234,8 +236,14 @@ struct marshal_data {
 static void
 setup_marshal_data(struct marshal_data *data)
 {
+#ifdef SOCK_CLOEXEC
 	assert(socketpair(AF_UNIX,
 			  SOCK_STREAM | SOCK_CLOEXEC, 0, data->s) == 0);
+#else
+	assert(socketpair(AF_UNIX, SOCK_STREAM, 0, data->s) == 0);
+	assert(set_cloexec_or_close(data->s[0]) != -1);
+	assert(set_cloexec_or_close(data->s[1]) != -1);
+#endif
 
 	data->read_connection = wl_connection_create(data->s[0],
 						     WL_BUFFER_DEFAULT_MAX_SIZE);
@@ -325,7 +333,7 @@ do_os_wrappers_recvmsg_cloexec(int n)
 	struct marshal_data data;
 
 	data.nr_fds_begin = count_open_fds();
-#if HAVE_BROKEN_MSG_CMSG_CLOEXEC
+#if HAVE_BROKEN_MSG_CMSG_CLOEXEC || !defined(MSG_CMSG_CLOEXEC)
 	/* We call the fallback directly on FreeBSD versions with a broken
 	 * MSG_CMSG_CLOEXEC, so we don't call the local recvmsg() wrapper. */
 	data.wrapped_calls = 0;
@@ -389,5 +397,4 @@ TEST(os_wrappers_epoll_create_cloexec_fallback)
 	init_fallbacks(1);
 	do_os_wrappers_epoll_create_cloexec(2);
 }
-#endif /* __APPLE__ */
 /* FIXME: add tests for wl_os_accept_cloexec() */
diff --git a/tests/queue-test.c b/tests/queue-test.c
index cb61a85b..014c5de1 100644
--- a/tests/queue-test.c
+++ b/tests/queue-test.c
@@ -23,7 +23,26 @@
  * SOFTWARE.
  */
 
+#ifndef __APPLE__
 #define _GNU_SOURCE /* For memrchr */
+#else
+#include <string.h>
+/* No memrchr() on Darwin, borrow one from OpenBSD */
+static void *
+memrchr(const void *s, int c, size_t n)
+{
+	const unsigned char *cp;
+
+	if (n != 0) {
+		cp = (unsigned char *)s + n;
+		do {
+			if (*(--cp) == (unsigned char)c)
+				return((void *)cp);
+		} while (--n != 0);
+	}
+	return(NULL);
+}
+#endif
 #include <stdlib.h>
 #include <stdint.h>
 #include <stdio.h>