kernel: ring_to_virt

1 files changed, 11 insertions, 0 deletions

diff --git a/src/kernel/ring.c b/src/kernel/ring.c
new file mode 100644
index 0000000..e25024a
--- /dev/null
+++ b/src/kernel/ring.c
@@ -0,0 +1,11 @@
+#include <kernel/mem/virt.h>
+#include <kernel/ring.h>
+
+size_t ring_to_virt(ring_t *r, struct pagedir *pages, void __user *ubuf, size_t max) {
+	char tmp[32];
+	if (max > sizeof tmp) max = sizeof tmp;
+	max = ring_get(r, tmp, max);
+	// TODO decide how write errors should be handled
+	virt_cpy_to(pages, ubuf, tmp, max);
+	return max;
+}