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author | Christian Muck <christian.muck@bmw.de> | 2011-04-11 15:41:05 +0200 |
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committer | Christian Muck <christian.muck@bmw.de> | 2011-04-11 15:41:05 +0200 |
commit | 760fb8a4daba3e403376099ce38aca8f88d695d3 (patch) | |
tree | 36b6f428cee8ba0af0fd50b3e44a3d4da9083a44 /src/shared/dlt_user_shared.c | |
parent | 5394c6fa5bf40d9bc8619026cbc4c306211a8499 (diff) | |
download | DLT-daemon-760fb8a4daba3e403376099ce38aca8f88d695d3.tar.gz |
Init of dlt daemon
Diffstat (limited to 'src/shared/dlt_user_shared.c')
-rwxr-xr-x | src/shared/dlt_user_shared.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/shared/dlt_user_shared.c b/src/shared/dlt_user_shared.c new file mode 100755 index 0000000..5afc828 --- /dev/null +++ b/src/shared/dlt_user_shared.c @@ -0,0 +1,199 @@ +/* + * 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]; + int 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]; + int 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; +} |