Init of dlt daemon

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;
+}