From 83fa1f34ea744da7d26997179a0dd6af751dd8b0 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Tue, 24 Aug 2021 16:25:50 +0200
Subject: add some scaffolding for file descriptors

---
 src/kernel/syscalls.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

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

diff --git a/src/kernel/syscalls.c b/src/kernel/syscalls.c
index 8ee90eb..4da5261 100644
--- a/src/kernel/syscalls.c
+++ b/src/kernel/syscalls.c
@@ -130,6 +130,18 @@ fail:
 	return -1;
 }
 
+int _syscall_fd_read(fd_t fd, char *buf, int len) {
+	return fdop_dispatch(FDOP_READ, fd, buf, len);
+}
+
+int _syscall_fd_write(fd_t fd, char *buf, int len) {
+	return fdop_dispatch(FDOP_WRITE, fd, buf, len);
+}
+
+int _syscall_fd_close(fd_t fd) {
+	return fdop_dispatch(FDOP_CLOSE, fd, 0, 0);
+}
+
 int _syscall_debuglog(const char *msg, size_t len) {
 	struct virt_iter iter;
 	virt_iter_new(&iter, (void*)msg, len, process_current->pages, true, false);
@@ -150,6 +162,12 @@ int syscall_handler(int num, int a, int b, int c) {
 			return _syscall_fs_open((void*)a, b);
 		case _SYSCALL_MOUNT:
 			return _syscall_mount((void*)a, b, c);
+		case _SYSCALL_FD_READ:
+			return _syscall_fd_read(a, (void*)b, c);
+		case _SYSCALL_FD_WRITE:
+			return _syscall_fd_write(a, (void*)b, c);
+		case _SYSCALL_FD_CLOSE:
+			return _syscall_fd_close(a);
 		case _SYSCALL_DEBUGLOG:
 			return _syscall_debuglog((void*)a, b);
 		default:
-- 
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