1 files changed, 26 insertions, 0 deletions
diff --git a/lib/libc/aio/aio_error.c b/lib/libc/aio/aio_error.c
new file mode 100644
index 00000000..27c7f134
--- /dev/null
+++ b/lib/libc/aio/aio_error.c
@@ -0,0 +1,26 @@
+#include <__aio.h>
+#include <errno.h>
+#include <stddef.h>
+
+int aio_error(const struct aiocb *aiocbp)
+{
+	struct aio_request *req;
+
+	if (aiocbp == NULL) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	req = __aio_lookup(aiocbp);
+
+	if (req == NULL) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	if (req->status == AIO_REQUEST_STATUS_PENDING) {
+		return EINPROGRESS;
+	}
+
+	return req->result < 0 ? -req->result : 0;
+}