Added aio and eventfd support, along with sleep and yes utilities

2 files changed, 88 insertions, 0 deletions

diff --git a/lib/libc/include/__aio.h b/lib/libc/include/__aio.h
new file mode 100644
index 00000000..93cb1f79
--- /dev/null
+++ b/lib/libc/include/__aio.h
@@ -0,0 +1,35 @@
+#ifndef __LIBC_AIO_H
+#define __LIBC_AIO_H
+
+#include <aio.h>
+
+#define AIO_REQUEST_STATUS_PENDING   0
+#define AIO_REQUEST_STATUS_COMPLETED 1
+
+struct lio_group {
+	int pending;
+	int error;
+	int eventfd;
+	struct sigevent *sig;
+};
+
+struct aio_context {
+	struct aio_request *head;
+	struct aio_request *tail;
+};
+
+struct aio_request {
+	struct aiocb *aiocbp;
+	int status;
+	ssize_t result;
+	struct aio_request *next;
+	struct lio_group *grp;
+};
+
+void __aio_poll(void);
+
+int __aio_request(struct aio_request *, int);
+struct aio_request *__aio_lookup(const struct aiocb *);
+struct aio_request *__aio_remove(const struct aiocb *);
+
+#endif
diff --git a/lib/libc/include/io_uring.h b/lib/libc/include/io_uring.h
new file mode 100644
index 00000000..4dac4583
--- /dev/null
+++ b/lib/libc/include/io_uring.h
@@ -0,0 +1,53 @@
+#ifndef __LIBC_IO_URING_H
+#define __LIBC_IO_URING_H
+
+#include <linux/io_uring.h>
+#include <signal.h>
+
+#define IO_URING_ENTRIES 256
+
+struct io_uring_sq {
+	void *ring;
+	size_t ring_size;
+	struct io_uring_sqe *sqes;
+
+	unsigned *head;
+	unsigned *tail;
+	unsigned *ring_mask;
+	unsigned *ring_entries;
+	unsigned *flags;
+	unsigned *dropped;
+	unsigned *array;
+};
+
+struct io_uring_cq {
+	void *ring;
+	size_t ring_size;
+
+	unsigned *head;
+	unsigned *tail;
+	unsigned *ring_mask;
+	unsigned *ring_entries;
+	unsigned *overflow;
+	struct io_uring_cqe *cqes;
+	unsigned *flags;
+};
+
+struct io_uring {
+	int fd;
+	int eventfd;
+
+	struct io_uring_sq sq;
+	struct io_uring_cq cq;
+};
+
+extern struct io_uring __io_uring;
+
+int io_uring_setup(unsigned int, struct io_uring_params *);
+
+int io_uring_register(unsigned int, unsigned int, void *, unsigned int);
+
+int io_uring_enter(unsigned int, unsigned int, unsigned int, unsigned int,
+		   sigset_t *, size_t);
+
+#endif