libc/stdio/_wcommit.c

   1 /* Copyright (C) 2004       Manuel Novoa III    <mjn3@codepoet.org>
   2  *
   3  * GNU Library General Public License (LGPL) version 2 or later.
   4  *
   5  * Dedicated to Toni.  See uClibc/DEDICATION.mjn3 for details.
   6  */
   7
   8 #include "_stdio.h"
   9
  10 #ifdef __STDIO_BUFFERS
  11
  12 /* Commit the data in the write buffer.
  13  * Returns 0 on success, >0 (pending) on failure.
  14  * Side effects are those of _stdio_WRITE
  15  */
  16
  17 size_t attribute_hidden __stdio_wcommit(register FILE * __restrict stream)
  18 {
  19         size_t bufsize;
  20
  21         __STDIO_STREAM_VALIDATE(stream);
  22
  23         if ((bufsize = __STDIO_STREAM_BUFFER_WUSED(stream)) != 0) {
  24                 stream->__bufpos = stream->__bufstart;
  25                 __stdio_WRITE(stream, stream->__bufstart, bufsize);
  26         }
  27
  28         return __STDIO_STREAM_BUFFER_WUSED(stream);
  29 }
  30
  31 #endif