From 3ea9657aaaf02709c8f216285b095af29e76491c Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sun, 12 Sep 2021 17:53:48 +0200
Subject: implement part of `fs_respond`

---
 src/kernel/syscalls.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/kernel/syscalls.c')

diff --git a/src/kernel/syscalls.c b/src/kernel/syscalls.c
index 1180197..b247619 100644
--- a/src/kernel/syscalls.c
+++ b/src/kernel/syscalls.c
@@ -222,6 +222,17 @@ int _syscall_fs_wait(handle_t back, char __user *buf, int __user *len) {
 	}
 }
 
+int _syscall_fs_respond(int ret, char __user *buf, int len) {
+	struct vfs_request *req = process_current->handled_req;
+	if (!req) return -1;
+
+	// TODO copy buffer
+
+	process_current->handled_req = NULL;
+	vfs_request_finish(req, ret);
+	return 0;
+}
+
 int _syscall_memflag(void __user *addr, size_t len, int flags) {
 	userptr_t goal = addr + len;
 	struct pagedir *pages = process_current->pages;
@@ -263,6 +274,8 @@ int syscall_handler(int num, int a, int b, int c) {
 			return _syscall_fs_create((userptr_t)a);
 		case _SYSCALL_FS_WAIT:
 			return _syscall_fs_wait(a, (userptr_t)b, (userptr_t)c);
+		case _SYSCALL_FS_RESPOND:
+			return _syscall_fs_respond(a, (userptr_t)b, c);
 		case _SYSCALL_MEMFLAG:
 			return _syscall_memflag((userptr_t)a, b, c);
 		default:
-- 
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