allow AsyncSignalHandler to attach and detach from an EventBase

[folly.git] / folly / portability / SysStat.h

diff --git a/folly/portability/SysStat.h b/folly/portability/SysStat.h
old mode 100755 (executable)
new mode 100644 (file)
index 0901f9a..3957108
--- a/folly/portability/SysStat.h
+++ b/folly/portability/SysStat.h
@@ -35,6 +35,8 @@
 #define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
 #define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
 
+#define S_ISDIR(mode) (((mode) & (_S_IFDIR)) == (_S_IFDIR) ? 1 : 0)
+
 // This isn't defined anywhere, so give a sane value.
 #define MAXSYMLINKS 255