commit 36ce73bbfdb1f80a010d64333a115e096f7233b8
author Greg V <greg@unrelenting.technology> Sat Dec 22 16:10:06 2018 +0300
committer Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> Fri Feb 15 15:45:25 2019 +0100
tree 3e5b1671dcb05c4cbf3a88233dfae8966c05467d
parent 1d95acdf565f65894f38b8742afde8dbbb80baef

Wayland: use SHM_ANON on FreeBSD

This works like memfd on Linux.

src/wl_window.c

diff --git a/src/wl_window.c b/src/wl_window.c
index 98a6465..1d7cc9a 100644
--- a/src/wl_window.c
+++ b/src/wl_window.c
@@ -156,6 +156,9 @@
         fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
     }
     else
+#elif defined(SHM_ANON)
+    fd = shm_open(SHM_ANON, O_RDWR | O_CLOEXEC, 0600);
+    if (fd < 0)
 #endif
     {
         path = getenv("XDG_RUNTIME_DIR");
@@ -175,7 +178,12 @@
             return -1;
     }
 
+#if defined(SHM_ANON)
+    // posix_fallocate does not work on SHM descriptors
+    ret = ftruncate(fd, size);
+#else
     ret = posix_fallocate(fd, 0, size);
+#endif
     if (ret != 0)
     {
         close(fd);