# HG changeset patch
# User mir3636
# Date 1547773477 -32400
# Node ID a672d603ccb2233398bc37224cb9b099a1590836
# Parent  68de775c3a2956f9033d1f4ecd43b447c175129e
fix

diff -r 68de775c3a29 -r a672d603ccb2 src/console.c
--- a/src/console.c	Fri Jan 18 09:40:22 2019 +0900
+++ b/src/console.c	Fri Jan 18 10:04:37 2019 +0900
@@ -215,33 +215,6 @@
     release(&input.lock);
 }
 
-__code cbc_consoleread (struct inode *ip, char *dst, int n, __code(*next)(int ret))
-{
-    uint target;
-
-    iunlock(ip);
-
-    target = n;
-    acquire(&input.lock);
-
-    while (n > 0) {
-        while (input.r == input.w) {
-            if (proc->killed) {
-                release(&input.lock);
-                ilock(ip);
-                goto next(-1);
-            }
-
-            proc->cbc_arg.cbc_console_arg.n = n;
-            proc->cbc_arg.cbc_console_arg.target = target;
-	    proc->cbc_arg.cbc_console_arg.dst = dst;
-	    proc->cbc_arg.cbc_console_arg.ip = ip;
-	    proc->cbc_arg.cbc_console_arg.next = next;
-            goto cbc_sleep(&input.r, &input.lock, cbc_consoleread1);
-        }
-    }
-}
-
 __code cbc_consoleread1 (__code(*next)(int ret))
 {
     int cont = 1;
@@ -283,6 +256,33 @@
     goto next(target - n);
 }
 
+__code cbc_consoleread (struct inode *ip, char *dst, int n, __code(*next)(int ret))
+{
+    uint target;
+
+    iunlock(ip);
+
+    target = n;
+    acquire(&input.lock);
+
+    while (n > 0) {
+        while (input.r == input.w) {
+            if (proc->killed) {
+                release(&input.lock);
+                ilock(ip);
+                goto next(-1);
+            }
+
+            proc->cbc_arg.cbc_console_arg.n = n;
+            proc->cbc_arg.cbc_console_arg.target = target;
+	    proc->cbc_arg.cbc_console_arg.dst = dst;
+	    proc->cbc_arg.cbc_console_arg.ip = ip;
+	    proc->cbc_arg.cbc_console_arg.next = next;
+            goto cbc_sleep(&input.r, &input.lock, cbc_consoleread1);
+        }
+    }
+}
+
 int consoleread (struct inode *ip, char *dst, int n)
 {
     uint target;
diff -r 68de775c3a29 -r a672d603ccb2 src/file.h
--- a/src/file.h	Fri Jan 18 09:40:22 2019 +0900
+++ b/src/file.h	Fri Jan 18 10:04:37 2019 +0900
@@ -34,8 +34,8 @@
 };
 
 struct cbc_devsw {
-    int (*read) (struct inode*, char*, int, __code (*)(int));
-    //int (*write)(struct inode*, char*, int, __code (*)(int));
+    __code (*read) (struct inode*, char*, int, __code (*)(int));
+    //__code (*write)(struct inode*, char*, int, __code (*)(int));
 };
 
 extern struct devsw devsw[];
diff -r 68de775c3a29 -r a672d603ccb2 src/syscall.c
--- a/src/syscall.c	Fri Jan 18 09:40:22 2019 +0900
+++ b/src/syscall.c	Fri Jan 18 10:04:37 2019 +0900
@@ -115,6 +115,8 @@
 extern int sys_write(void);
 extern int sys_uptime(void);
 
+extern __code cbc_read(__code(*)(int));
+
 static int (*syscalls[])(void) = {
         [SYS_fork]    =sys_fork,
         [SYS_exit]    =sys_exit,
@@ -139,7 +141,7 @@
         [SYS_close]   =sys_close,
 };
 
-static __code (*cbccodes[])(void) = {
+static __code (*cbccodes[])(__code (*)(int)) = {
 	[SYS_cbc_read]	= cbc_read, 
 };
 
diff -r 68de775c3a29 -r a672d603ccb2 src/syscall.h
--- a/src/syscall.h	Fri Jan 18 09:40:22 2019 +0900
+++ b/src/syscall.h	Fri Jan 18 10:04:37 2019 +0900
@@ -20,3 +20,5 @@
 #define SYS_link   19
 #define SYS_mkdir  20
 #define SYS_close  21
+
+#define SYS_cbc_read 22