1 files changed, 37 insertions, 0 deletions
diff --git a/libgamma_group_gid.c b/libgamma_group_gid.c
new file mode 100644
index 0000000..b493a0d
--- /dev/null
+++ b/libgamma_group_gid.c
@@ -0,0 +1,37 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+#ifdef __WIN32__
+#define gid_t short
+#endif
+
+
+static _Thread_local gid_t libgamma_group_gid;
+
+
+/**
+ * Get the group that the user needs to be a member
+ * of if `LIBGAMMA_DEVICE_REQUIRE_GROUP` is returned
+ * 
+ * @return  The group that the user needs to be a member of
+ *          if `LIBGAMMA_DEVICE_REQUIRE_GROUP` is returned
+ */
+gid_t
+libgamma_group_gid_get(void)
+{
+	return libgamma_group_gid;
+}
+
+
+/**
+ * Set the group that the user needs to be a member
+ * of if `LIBGAMMA_DEVICE_REQUIRE_GROUP` is returned
+ * 
+ * @param  value  The group that the user needs to be a member of
+ *                if `LIBGAMMA_DEVICE_REQUIRE_GROUP` is returned
+ */
+void
+libgamma_group_gid_set(gid_t value)
+{
+	libgamma_group_gid = value;
+}