summaryrefslogtreecommitdiff
path: root/libc/stdio/_rfill.c
diff options
context:
space:
mode:
authorManuel Novoa III <mjn3@codepoet.org>2004-02-11 23:48:50 +0000
committerManuel Novoa III <mjn3@codepoet.org>2004-02-11 23:48:50 +0000
commit082e680bd54e999f2bb4eb77141958938b1e9ee9 (patch)
tree203c45b85ca608e1550d8ffc459456fc9cf0b30b /libc/stdio/_rfill.c
parent17c21765b4a97c6f0b74ba8466073e5a3f97cdee (diff)
New stdio core. Should be more maintainable. Fixes a couple of bugs.
Codepaths streamlined. Improved performance for nonthreaded apps when linked with a thread-enabled libc. Minor iconv bug and some locale/thread related startup issues fixed. These showed up in getting a gcj-compiled java helloworld app running. Removed some old extension functions... _stdio_fdout and _stdio_fsfopen.
Diffstat (limited to 'libc/stdio/_rfill.c')
-rw-r--r--libc/stdio/_rfill.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/libc/stdio/_rfill.c b/libc/stdio/_rfill.c
new file mode 100644
index 000000000..145c1d78e
--- /dev/null
+++ b/libc/stdio/_rfill.c
@@ -0,0 +1,45 @@
+/* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ *
+ * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details.
+ */
+
+#include "_stdio.h"
+
+#ifdef __UCLIBC_MJN3_ONLY__
+#warning CONSIDER: Do we really need a seperate rfill function?
+#endif
+
+#ifdef __STDIO_BUFFERS
+
+/* Read some data into the buffer.
+ * Returns number of bytes read into the buffer.
+ * If 0 is returned, then either EOF or ERROR.
+ * Side effects are those of _stdio_READ.
+ */
+
+size_t __stdio_rfill(register FILE *__restrict stream)
+{
+ size_t rv;
+
+ __STDIO_STREAM_VALIDATE(stream);
+ assert(stream->__filedes >= -1);
+ assert(__STDIO_STREAM_IS_READING(stream));
+ assert(!__STDIO_STREAM_BUFFER_RAVAIL(stream)); /* Buffer must be empty. */
+ assert(__STDIO_STREAM_BUFFER_SIZE(stream)); /* Must have a buffer. */
+ assert(!(stream->__modeflags & __FLAG_UNGOT));
+#ifdef __UCLIBC_HAS_STDIO_GETC_MACRO__
+ assert(stream->__bufgetc_u == stream->__bufstart);
+#endif
+
+ rv = __stdio_READ(stream, stream->__bufstart,
+ stream->__bufend - stream->__bufstart);
+ stream->__bufpos = stream->__bufstart;
+ stream->__bufread = stream->__bufstart + rv;
+
+ __STDIO_STREAM_VALIDATE(stream);
+ return rv;
+}
+
+#endif