From: Ben Pfaff <blp@cs.stanford.edu>
Date: Mon, 20 Sep 2004 04:27:43 +0000 (+0000)
Subject: Add putbuf().
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=76f6e5dbcd612bbf79e0243bb8a0247b52043571;p=pintos-anon

Add putbuf().
---

diff --git a/src/lib/kernel/console.c b/src/lib/kernel/console.c
index 803b46b..149f29c 100644
--- a/src/lib/kernel/console.c
+++ b/src/lib/kernel/console.c
@@ -59,6 +59,20 @@ puts (const char *s)
   return 0;
 }
 
+/* Writes the N characters in BUFFER to the console. */
+void
+putbuf (const char *buffer, size_t n) 
+{
+  if (!intr_context ())
+    lock_acquire (&console_lock);
+
+  while (n-- > 0)
+    putchar_unlocked (*buffer++);
+
+  if (!intr_context ())
+    lock_release (&console_lock);
+}
+
 /* Writes C to the vga display and serial port. */
 int
 putchar (int c) 
diff --git a/src/lib/stdio.h b/src/lib/stdio.h
index b351dd1..cf6c49e 100644
--- a/src/lib/stdio.h
+++ b/src/lib/stdio.h
@@ -19,7 +19,10 @@ int putchar (int);
 int puts (const char *);
 
 /* Nonstandard functions. */
-#ifndef KERNEL
+#ifdef KERNEL
+void putbuf (const char *, size_t);
+#endif
+#ifdef USER
 int hprintf (int, const char *, ...) PRINTF_FORMAT (2, 3);
 int vhprintf (int, const char *, va_list) PRINTF_FORMAT (2, 0);
 #endif