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author | Lorenz Meier <lm@inf.ethz.ch> | 2013-06-01 01:04:32 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-06-01 01:04:32 +0200 |
commit | 5375bb5b86e266157ceceef08c367da711b8144e (patch) | |
tree | 88bc81cab11d8f0b2b6f9391f803051c081b2ecb /nuttx/libc/stdio/lib_libfwrite.c | |
parent | 27ee36b2049167a1272122548fe61aa2993d79c1 (diff) | |
download | px4-firmware-5375bb5b86e266157ceceef08c367da711b8144e.tar.gz px4-firmware-5375bb5b86e266157ceceef08c367da711b8144e.tar.bz2 px4-firmware-5375bb5b86e266157ceceef08c367da711b8144e.zip |
Cleanup, WIP, needs a NuttX checkout to Firmware/NuttX now
Diffstat (limited to 'nuttx/libc/stdio/lib_libfwrite.c')
-rw-r--r-- | nuttx/libc/stdio/lib_libfwrite.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/nuttx/libc/stdio/lib_libfwrite.c b/nuttx/libc/stdio/lib_libfwrite.c deleted file mode 100644 index b917b3b56..000000000 --- a/nuttx/libc/stdio/lib_libfwrite.c +++ /dev/null @@ -1,179 +0,0 @@ -/**************************************************************************** - * libc/stdio/lib_libfwrite.c - * - * Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * 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 NuttX 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 <nuttx/config.h> /* for CONFIG_STDIO_BUFFER_SIZE */ - -#include <sys/types.h> -#include <stdbool.h> -#include <stdio.h> -#include <unistd.h> -#include <fcntl.h> -#include <errno.h> - -#include "lib_internal.h" - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Type Declarations - ****************************************************************************/ - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -/**************************************************************************** - * Global Constant Data - ****************************************************************************/ - -/**************************************************************************** - * Global Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Constant Data - ****************************************************************************/ - -/**************************************************************************** - * Private Variables - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: lib_fwrite - ****************************************************************************/ - -ssize_t lib_fwrite(FAR const void *ptr, size_t count, FAR FILE *stream) -#if CONFIG_STDIO_BUFFER_SIZE > 0 -{ - FAR const unsigned char *start = ptr; - FAR const unsigned char *src = ptr; - ssize_t ret = ERROR; - unsigned char *dest; - - /* Make sure that writing to this stream is allowed */ - - if (!stream || (stream->fs_oflags & O_WROK) == 0) - { - set_errno(EBADF); - goto errout; - } - - /* Get exclusive access to the stream */ - - lib_take_semaphore(stream); - - /* If the buffer is currently being used for read access, then - * discard all of the read-ahead data. We do not support concurrent - * buffered read/write access. - */ - - if (lib_rdflush(stream) < 0) - { - goto errout_with_semaphore; - } - - /* Loop until all of the bytes have been buffered */ - - while (count > 0) - { - /* Determine the number of bytes left in the buffer */ - - size_t gulp_size = stream->fs_bufend - stream->fs_bufpos; - - /* Will the user data fit into the amount of buffer space - * that we have left? - */ - - if (gulp_size > count) - { - /* Yes, clip the gulp to the size of the user data */ - - gulp_size = count; - } - - /* Adjust the number of bytes remaining to be transferred - * on the next pass through the loop (might be zero). - */ - - count -= gulp_size; - - /* Transfer the data into the buffer */ - - for (dest = stream->fs_bufpos; gulp_size > 0; gulp_size--) - { - *dest++ = *src++; - } - stream->fs_bufpos = dest; - - /* Is the buffer full? */ - - if (dest >= stream->fs_bufend) - { - /* Flush the buffered data to the IO stream */ - - int bytes_buffered = lib_fflush(stream, false); - if (bytes_buffered < 0) - { - goto errout_with_semaphore; - } - } - } - - /* Return the number of bytes written */ - - ret = src - start; - -errout_with_semaphore: - lib_give_semaphore(stream); - -errout: - return ret; -} -#else -{ - return write(stream->fs_filedes, ptr, count); -} -#endif /* CONFIG_STDIO_BUFFER_SIZE */ - |