Merge branch 'lukeshu/9p-read-iovec'

1 files changed, 21 insertions, 0 deletions

diff --git a/libhw_cr/host_util.c b/libhw_cr/host_util.c
new file mode 100644
index 0000000..958ed9c
--- /dev/null
+++ b/libhw_cr/host_util.c
@@ -0,0 +1,21 @@
+/* libhw_cr/host_util.c - Utilities for GNU/Linux hosts
+ *
+ * Copyright (C) 2024  Luke T. Shumaker <lukeshu@lukeshu.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+#include <error.h>  /* for error(3gnu) */
+#include <signal.h> /* for SIGRTMIN, SIGRTMAX */
+
+#include "host_util.h"
+
+int host_sigrt_alloc(void) {
+	static int next = 0;
+
+	if (!next)
+		next = SIGRTMIN;
+	int ret = next++;
+	if (ret > SIGRTMAX)
+		error(1, 0, "SIGRTMAX exceeded");
+	return ret;
+}