wip host_alarmclock

1 files changed, 21 insertions, 0 deletions

diff --git a/libhw/host_sigrt.c b/libhw/host_sigrt.c
new file mode 100644
index 0000000..66041fc
--- /dev/null
+++ b/libhw/host_sigrt.c
@@ -0,0 +1,21 @@
+/* libhw/host_sigrt.c - Manage glibc realtime signals
+ *
+ * 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_sigrt.h"
+
+int host_alloc_sigrt(void) {
+	static int next = 0;
+
+	if (!next)
+		next = SIGRTMIN;
+	int ret = next++;
+	if (ret > SIGRTMAX)
+		error(1, 0, "SIGRTMAX exceeded");
+	return ret;
+}