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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-03-05 20:38:39 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-03-05 20:38:39 +0000 |
commit | 36be54817fe1d8879f26b7f0e1797e8ba23e8a0f (patch) | |
tree | dcb1e1716e40880ec68883fdc0a50123eea77293 /nuttx/lib/lib_nullstream.c | |
parent | 152b278e70541d86a06e76c25f37c9588526c6fa (diff) | |
download | px4-nuttx-36be54817fe1d8879f26b7f0e1797e8ba23e8a0f.tar.gz px4-nuttx-36be54817fe1d8879f26b7f0e1797e8ba23e8a0f.tar.bz2 px4-nuttx-36be54817fe1d8879f26b7f0e1797e8ba23e8a0f.zip |
Re-design vsprintf so that it does not use so much stack; handle 8051's 2-byte generic pointers.
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@38 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/lib/lib_nullstream.c')
-rw-r--r-- | nuttx/lib/lib_nullstream.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/nuttx/lib/lib_nullstream.c b/nuttx/lib/lib_nullstream.c new file mode 100644 index 000000000..f4c1ceb88 --- /dev/null +++ b/nuttx/lib/lib_nullstream.c @@ -0,0 +1,62 @@ +/************************************************************ + * lib_nullstream.c + * + * Copyright (C) 2007 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name Gregory Nutt nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************/ + +/************************************************************ + * Included Files + ************************************************************/ + +#include <stdio.h> +#include <errno.h> +#include "lib_internal.h" + +/************************************************************ + * Private Functions + ************************************************************/ + +static void nullstream_putc(struct lib_stream_s *this, int ch) +{ + this->nput++; +} + +/************************************************************ + * Public Functions + ************************************************************/ + +void lib_nullstream(struct lib_stream_s *nullstream) +{ + nullstream->put = nullstream_putc; + nullstream->nput = 0; +} + |