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/*
* Dlt- Diagnostic Log and Trace user library
* @licence app begin@
*
* Copyright (C) 2011, BMW AG - Alexander Wenzel <alexander.wenzel@bmw.de>
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU Lesser General Public License, version 2.1, as published by the Free Software Foundation.
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
* Public License, version 2.1, for more details.
*
* You should have received a copy of the GNU Lesser General Public License, version 2.1, along
* with this program; if not, see <http://www.gnu.org/licenses/lgpl-2.1.html>.
*
* Note that the copyright holders assume that the GNU Lesser General Public License, version 2.1, may
* also be applicable to programs even in cases in which the program is not a library in the technical sense.
*
* Linking DLT statically or dynamically with other modules is making a combined work based on DLT. You may
* license such other modules under the GNU Lesser General Public License, version 2.1. If you do not want to
* license your linked modules under the GNU Lesser General Public License, version 2.1, you
* may use the program under the following exception.
*
* As a special exception, the copyright holders of DLT give you permission to combine DLT
* with software programs or libraries that are released under any license unless such a combination is not
* permitted by the license of such a software program or library. You may copy and distribute such a
* system following the terms of the GNU Lesser General Public License, version 2.1, including this
* special exception, for DLT and the licenses of the other code concerned.
*
* Note that people who make modified versions of DLT are not obligated to grant this special exception
* for their modified versions; it is their choice whether to do so. The GNU Lesser General Public License,
* version 2.1, gives permission to release a modified version without this exception; this exception
* also makes it possible to release a modified version which carries forward this exception.
*
* @licence end@
*/
/*******************************************************************************
** **
** SRC-MODULE: dlt_user_shared.c **
** **
** TARGET : linux **
** **
** PROJECT : DLT **
** **
** AUTHOR : Alexander Wenzel Alexander.AW.Wenzel@bmw.de **
** Markus Klein **
** **
** PURPOSE : **
** **
** REMARKS : **
** **
** PLATFORM DEPENDANT [yes/no]: yes **
** **
** TO BE CHANGED BY USER [yes/no]: no **
** **
*******************************************************************************/
/*******************************************************************************
** Author Identity **
********************************************************************************
** **
** Initials Name Company **
** -------- ------------------------- ---------------------------------- **
** aw Alexander Wenzel BMW **
** mk Markus Klein Fraunhofer ESK **
*******************************************************************************/
/*******************************************************************************
** Revision Control History **
*******************************************************************************/
/*
* $LastChangedRevision: 1670 $
* $LastChangedDate: 2011-04-08 15:12:06 +0200 (Fr, 08. Apr 2011) $
* $LastChangedBy$
Initials Date Comment
aw 13.01.2010 initial
*/
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/uio.h> /* writev() */
#include "dlt_user_shared.h"
#include "dlt_user_shared_cfg.h"
int dlt_user_set_userheader(DltUserHeader *userheader, uint32_t mtype)
{
if (userheader==0)
{
return -1;
}
if (mtype<=0)
{
return -1;
}
userheader->pattern[0] = 'D';
userheader->pattern[1] = 'U';
userheader->pattern[2] = 'H';
userheader->pattern[3] = 1;
userheader->message = mtype;
return 0;
}
int dlt_user_check_userheader(DltUserHeader *userheader)
{
if (userheader==0)
{
return -1;
}
return ((userheader->pattern[0] == 'D') &&
(userheader->pattern[1] == 'U') &&
(userheader->pattern[2] == 'H') &&
(userheader->pattern[3] == 1));
}
DltReturnValue dlt_user_log_out2(int handle, void *ptr1, size_t len1, void* ptr2, size_t len2)
{
struct iovec iov[2];
uint32_t bytes_written;
if (handle<=0)
{
/* Invalid handle */
return DLT_RETURN_ERROR;
}
iov[0].iov_base = ptr1;
iov[0].iov_len = len1;
iov[1].iov_base = ptr2;
iov[1].iov_len = len2;
bytes_written = writev(handle, iov, 2);
if (bytes_written!=(len1+len2))
{
return DLT_RETURN_ERROR;
}
return DLT_RETURN_OK;
}
DltReturnValue dlt_user_log_out3(int handle, void *ptr1, size_t len1, void* ptr2, size_t len2, void *ptr3, size_t len3)
{
struct iovec iov[3];
uint32_t bytes_written;
if (handle<=0)
{
/* Invalid handle */
return DLT_RETURN_ERROR;
}
iov[0].iov_base = ptr1;
iov[0].iov_len = len1;
iov[1].iov_base = ptr2;
iov[1].iov_len = len2;
iov[2].iov_base = ptr3;
iov[2].iov_len = len3;
bytes_written = writev(handle, iov, 3);
if (bytes_written!=(len1+len2+len3))
{
switch(errno)
{
case EBADF:
{
return DLT_RETURN_PIPE_ERROR; /* EBADF - handle not open */
break;
}
case EPIPE:
{
return DLT_RETURN_PIPE_ERROR; /* EPIPE - pipe error */
break;
}
case EAGAIN:
{
return DLT_RETURN_PIPE_FULL; /* EAGAIN - data could not be written */
break;
}
default:
{
break;
}
}
return DLT_RETURN_ERROR;
}
return DLT_RETURN_OK;
}
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