From 7485f7e441ca892876d9401380aa77610eb85f76 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Fri, 16 Apr 2021 23:22:02 +0200
Subject: New elegant I/O blocking solution

This is done using an internal scheduler syscall (127).

Very nice!
---
 kernel/inc/io.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'kernel/inc/io.h')

diff --git a/kernel/inc/io.h b/kernel/inc/io.h
index 3291bfc..e0b817b 100644
--- a/kernel/inc/io.h
+++ b/kernel/inc/io.h
@@ -19,12 +19,14 @@ struct io_dev {
 void io_install(struct boot_info *boot);
 void io_add(enum io_type io, struct io_dev *dev) NONNULL;
 
+// No NONNULL on syscalls
 res io_control(enum io_type io, u32 request, void *arg1, void *arg2, void *arg3);
 res io_write(enum io_type io, void *buf, u32 offset, u32 count);
 res io_read(enum io_type io, void *buf, u32 offset, u32 count);
-res io_poll(u32 *devs) NONNULL;
+res io_poll(u32 *devs);
+res io_ready(enum io_type io);
 
-void io_block(enum io_type io, struct proc *proc, struct regs *r) NONNULL;
+void io_block(enum io_type io, struct proc *proc) NONNULL;
 void io_unblock(enum io_type io);
 
 #endif
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