1 files changed, 105 insertions, 0 deletions
diff --git a/video/out/wayland/memfile.c b/video/out/wayland/memfile.c
new file mode 100644
index 0000000000..179abe8755
--- /dev/null
+++ b/video/out/wayland/memfile.c
@@ -0,0 +1,105 @@
+/*
+ * This file is part of mpv video player.
+ * Copyright © 2014 Alexander Preisinger <alexander.preisinger@gmail.com>
+ *
+ * mpv is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * mpv is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with mpv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#include "video/out/wayland/memfile.h"
+
+/* copied from weston clients */
+static int set_cloexec_or_close(int fd)
+{
+    long flags;
+
+    if (fd == -1)
+        return -1;
+
+    if ((flags = fcntl(fd, F_GETFD)) == -1)
+        goto err;
+
+    if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
+        goto err;
+
+    return fd;
+
+err:
+    close(fd);
+    return -1;
+}
+
+static int create_tmpfile_cloexec(char *tmpname)
+{
+    int fd;
+
+#ifdef HAVE_MKOSTEMP
+    fd = mkostemp(tmpname, O_CLOEXEC);
+    if (fd >= 0)
+        unlink(tmpname);
+#else
+    fd = mkstemp(tmpname);
+    if (fd >= 0) {
+        fd = set_cloexec_or_close(fd);
+        unlink(tmpname);
+    }
+#endif
+
+    return fd;
+}
+
+static int os_create_anonymous_file(off_t size)
+{
+    static const char template[] = "/mpv-temp-XXXXXX";
+    const char *path;
+    char *name;
+    int fd;
+
+    path = getenv("XDG_RUNTIME_DIR");
+    if (!path) {
+        errno = ENOENT;
+        return -1;
+    }
+
+    name = malloc(strlen(path) + sizeof(template));
+    if (!name)
+        return -1;
+
+    strcpy(name, path);
+    strcat(name, template);
+
+    fd = create_tmpfile_cloexec(name);
+
+    free(name);
+
+    if (fd < 0)
+        return -1;
+
+    if (ftruncate(fd, size) < 0) {
+        close(fd);
+        return -1;
+    }
+
+    return fd;
+}
+
+int memfile_create(off_t size)
+{
+    return os_create_anonymous_file(size);
+}